diff --git a/homework7/project_express/.idea/.gitignore b/homework7/project_express/.idea/.gitignore
new file mode 100644
index 0000000..73f69e0
--- /dev/null
+++ b/homework7/project_express/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/
diff --git a/homework7/project_express/.idea/jsLibraryMappings.xml b/homework7/project_express/.idea/jsLibraryMappings.xml
new file mode 100644
index 0000000..d23208f
--- /dev/null
+++ b/homework7/project_express/.idea/jsLibraryMappings.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/homework7/project_express/.idea/misc.xml b/homework7/project_express/.idea/misc.xml
new file mode 100644
index 0000000..28a804d
--- /dev/null
+++ b/homework7/project_express/.idea/misc.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/homework7/project_express/.idea/modules.xml b/homework7/project_express/.idea/modules.xml
new file mode 100644
index 0000000..4875f51
--- /dev/null
+++ b/homework7/project_express/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/homework7/project_express/.idea/project_express.iml b/homework7/project_express/.idea/project_express.iml
new file mode 100644
index 0000000..24643cc
--- /dev/null
+++ b/homework7/project_express/.idea/project_express.iml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/homework7/project_express/node_modules/.bin/mime b/homework7/project_express/node_modules/.bin/mime
new file mode 100644
index 0000000..91e5e16
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/mime
@@ -0,0 +1,15 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+ *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+ "$basedir/node" "$basedir/../mime/cli.js" "$@"
+ ret=$?
+else
+ node "$basedir/../mime/cli.js" "$@"
+ ret=$?
+fi
+exit $ret
diff --git a/homework7/project_express/node_modules/.bin/mime.cmd b/homework7/project_express/node_modules/.bin/mime.cmd
new file mode 100644
index 0000000..746a279
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/mime.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+ SET "_prog=%dp0%\node.exe"
+) ELSE (
+ SET "_prog=node"
+ SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%" "%dp0%\..\mime\cli.js" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
diff --git a/homework7/project_express/node_modules/.bin/mime.ps1 b/homework7/project_express/node_modules/.bin/mime.ps1
new file mode 100644
index 0000000..a6f6f47
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/mime.ps1
@@ -0,0 +1,18 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+ # Fix case when both the Windows and Linux builds of Node
+ # are installed in the same directory
+ $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+ & "$basedir/node$exe" "$basedir/../mime/cli.js" $args
+ $ret=$LASTEXITCODE
+} else {
+ & "node$exe" "$basedir/../mime/cli.js" $args
+ $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/homework7/project_express/node_modules/.bin/nodemon b/homework7/project_express/node_modules/.bin/nodemon
new file mode 100644
index 0000000..4d75661
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/nodemon
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+ *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+ exec "$basedir/node" "$basedir/../nodemon/bin/nodemon.js" "$@"
+else
+ exec node "$basedir/../nodemon/bin/nodemon.js" "$@"
+fi
diff --git a/homework7/project_express/node_modules/.bin/nodemon.cmd b/homework7/project_express/node_modules/.bin/nodemon.cmd
new file mode 100644
index 0000000..55acf8a
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/nodemon.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+ SET "_prog=%dp0%\node.exe"
+) ELSE (
+ SET "_prog=node"
+ SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%" "%dp0%\..\nodemon\bin\nodemon.js" %*
diff --git a/homework7/project_express/node_modules/.bin/nodemon.ps1 b/homework7/project_express/node_modules/.bin/nodemon.ps1
new file mode 100644
index 0000000..d4e3f5d
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/nodemon.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+ # Fix case when both the Windows and Linux builds of Node
+ # are installed in the same directory
+ $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "$basedir/node$exe" "$basedir/../nodemon/bin/nodemon.js" $args
+ } else {
+ & "$basedir/node$exe" "$basedir/../nodemon/bin/nodemon.js" $args
+ }
+ $ret=$LASTEXITCODE
+} else {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "node$exe" "$basedir/../nodemon/bin/nodemon.js" $args
+ } else {
+ & "node$exe" "$basedir/../nodemon/bin/nodemon.js" $args
+ }
+ $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/homework7/project_express/node_modules/.bin/nodetouch b/homework7/project_express/node_modules/.bin/nodetouch
new file mode 100644
index 0000000..03f8b4d
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/nodetouch
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+ *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+ exec "$basedir/node" "$basedir/../touch/bin/nodetouch.js" "$@"
+else
+ exec node "$basedir/../touch/bin/nodetouch.js" "$@"
+fi
diff --git a/homework7/project_express/node_modules/.bin/nodetouch.cmd b/homework7/project_express/node_modules/.bin/nodetouch.cmd
new file mode 100644
index 0000000..8298b91
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/nodetouch.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+ SET "_prog=%dp0%\node.exe"
+) ELSE (
+ SET "_prog=node"
+ SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%" "%dp0%\..\touch\bin\nodetouch.js" %*
diff --git a/homework7/project_express/node_modules/.bin/nodetouch.ps1 b/homework7/project_express/node_modules/.bin/nodetouch.ps1
new file mode 100644
index 0000000..5f68b4c
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/nodetouch.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+ # Fix case when both the Windows and Linux builds of Node
+ # are installed in the same directory
+ $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "$basedir/node$exe" "$basedir/../touch/bin/nodetouch.js" $args
+ } else {
+ & "$basedir/node$exe" "$basedir/../touch/bin/nodetouch.js" $args
+ }
+ $ret=$LASTEXITCODE
+} else {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "node$exe" "$basedir/../touch/bin/nodetouch.js" $args
+ } else {
+ & "node$exe" "$basedir/../touch/bin/nodetouch.js" $args
+ }
+ $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/homework7/project_express/node_modules/.bin/nopt b/homework7/project_express/node_modules/.bin/nopt
new file mode 100644
index 0000000..f1ec43b
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/nopt
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+ *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+ exec "$basedir/node" "$basedir/../nopt/bin/nopt.js" "$@"
+else
+ exec node "$basedir/../nopt/bin/nopt.js" "$@"
+fi
diff --git a/homework7/project_express/node_modules/.bin/nopt.cmd b/homework7/project_express/node_modules/.bin/nopt.cmd
new file mode 100644
index 0000000..a7f38b3
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/nopt.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+ SET "_prog=%dp0%\node.exe"
+) ELSE (
+ SET "_prog=node"
+ SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%" "%dp0%\..\nopt\bin\nopt.js" %*
diff --git a/homework7/project_express/node_modules/.bin/nopt.ps1 b/homework7/project_express/node_modules/.bin/nopt.ps1
new file mode 100644
index 0000000..9d6ba56
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/nopt.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+ # Fix case when both the Windows and Linux builds of Node
+ # are installed in the same directory
+ $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "$basedir/node$exe" "$basedir/../nopt/bin/nopt.js" $args
+ } else {
+ & "$basedir/node$exe" "$basedir/../nopt/bin/nopt.js" $args
+ }
+ $ret=$LASTEXITCODE
+} else {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "node$exe" "$basedir/../nopt/bin/nopt.js" $args
+ } else {
+ & "node$exe" "$basedir/../nopt/bin/nopt.js" $args
+ }
+ $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/homework7/project_express/node_modules/.bin/require b/homework7/project_express/node_modules/.bin/require
new file mode 100644
index 0000000..f2aed69
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/require
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+ *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+ exec "$basedir/node" "$basedir/../require/bin/require-command.js" "$@"
+else
+ exec node "$basedir/../require/bin/require-command.js" "$@"
+fi
diff --git a/homework7/project_express/node_modules/.bin/require.cmd b/homework7/project_express/node_modules/.bin/require.cmd
new file mode 100644
index 0000000..ffa7894
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/require.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+ SET "_prog=%dp0%\node.exe"
+) ELSE (
+ SET "_prog=node"
+ SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%" "%dp0%\..\require\bin\require-command.js" %*
diff --git a/homework7/project_express/node_modules/.bin/require.ps1 b/homework7/project_express/node_modules/.bin/require.ps1
new file mode 100644
index 0000000..ee58c8f
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/require.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+ # Fix case when both the Windows and Linux builds of Node
+ # are installed in the same directory
+ $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "$basedir/node$exe" "$basedir/../require/bin/require-command.js" $args
+ } else {
+ & "$basedir/node$exe" "$basedir/../require/bin/require-command.js" $args
+ }
+ $ret=$LASTEXITCODE
+} else {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "node$exe" "$basedir/../require/bin/require-command.js" $args
+ } else {
+ & "node$exe" "$basedir/../require/bin/require-command.js" $args
+ }
+ $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/homework7/project_express/node_modules/.bin/semver b/homework7/project_express/node_modules/.bin/semver
new file mode 100644
index 0000000..86cee84
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/semver
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+ *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+ exec "$basedir/node" "$basedir/../semver/bin/semver" "$@"
+else
+ exec node "$basedir/../semver/bin/semver" "$@"
+fi
diff --git a/homework7/project_express/node_modules/.bin/semver.cmd b/homework7/project_express/node_modules/.bin/semver.cmd
new file mode 100644
index 0000000..22d9286
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/semver.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+ SET "_prog=%dp0%\node.exe"
+) ELSE (
+ SET "_prog=node"
+ SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%" "%dp0%\..\semver\bin\semver" %*
diff --git a/homework7/project_express/node_modules/.bin/semver.ps1 b/homework7/project_express/node_modules/.bin/semver.ps1
new file mode 100644
index 0000000..98c1b09
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/semver.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+ # Fix case when both the Windows and Linux builds of Node
+ # are installed in the same directory
+ $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "$basedir/node$exe" "$basedir/../semver/bin/semver" $args
+ } else {
+ & "$basedir/node$exe" "$basedir/../semver/bin/semver" $args
+ }
+ $ret=$LASTEXITCODE
+} else {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "node$exe" "$basedir/../semver/bin/semver" $args
+ } else {
+ & "node$exe" "$basedir/../semver/bin/semver" $args
+ }
+ $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/homework7/project_express/node_modules/.bin/uglifyjs b/homework7/project_express/node_modules/.bin/uglifyjs
new file mode 100644
index 0000000..1d0ff19
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/uglifyjs
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+ *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+ exec "$basedir/node" "$basedir/../uglify-js/bin/uglifyjs" "$@"
+else
+ exec node "$basedir/../uglify-js/bin/uglifyjs" "$@"
+fi
diff --git a/homework7/project_express/node_modules/.bin/uglifyjs.cmd b/homework7/project_express/node_modules/.bin/uglifyjs.cmd
new file mode 100644
index 0000000..17a9df1
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/uglifyjs.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+ SET "_prog=%dp0%\node.exe"
+) ELSE (
+ SET "_prog=node"
+ SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%" "%dp0%\..\uglify-js\bin\uglifyjs" %*
diff --git a/homework7/project_express/node_modules/.bin/uglifyjs.ps1 b/homework7/project_express/node_modules/.bin/uglifyjs.ps1
new file mode 100644
index 0000000..5e0bc56
--- /dev/null
+++ b/homework7/project_express/node_modules/.bin/uglifyjs.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+ # Fix case when both the Windows and Linux builds of Node
+ # are installed in the same directory
+ $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "$basedir/node$exe" "$basedir/../uglify-js/bin/uglifyjs" $args
+ } else {
+ & "$basedir/node$exe" "$basedir/../uglify-js/bin/uglifyjs" $args
+ }
+ $ret=$LASTEXITCODE
+} else {
+ # Support pipeline input
+ if ($MyInvocation.ExpectingInput) {
+ $input | & "node$exe" "$basedir/../uglify-js/bin/uglifyjs" $args
+ } else {
+ & "node$exe" "$basedir/../uglify-js/bin/uglifyjs" $args
+ }
+ $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/homework7/project_express/node_modules/.package-lock.json b/homework7/project_express/node_modules/.package-lock.json
new file mode 100644
index 0000000..3c54ba4
--- /dev/null
+++ b/homework7/project_express/node_modules/.package-lock.json
@@ -0,0 +1,882 @@
+{
+ "name": "project_express",
+ "version": "1.0.0",
+ "lockfileVersion": 2,
+ "requires": true,
+ "packages": {
+ "node_modules/abbrev": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+ "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q=="
+ },
+ "node_modules/accepts": {
+ "version": "1.3.7",
+ "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
+ "integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
+ "dependencies": {
+ "mime-types": "~2.1.24",
+ "negotiator": "0.6.2"
+ },
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/amdefine": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
+ "integrity": "sha512-S2Hw0TtNkMJhIabBwIojKL9YHO5T0n5eNqWJ7Lrlel/zDbftQpxpapi8tZs3X1HWa+u+QeydGmzzNU0m09+Rcg==",
+ "engines": {
+ "node": ">=0.4.2"
+ }
+ },
+ "node_modules/anymatch": {
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diff --git a/homework7/project_express/node_modules/abbrev/LICENSE b/homework7/project_express/node_modules/abbrev/LICENSE
new file mode 100644
index 0000000..9bcfa9d
--- /dev/null
+++ b/homework7/project_express/node_modules/abbrev/LICENSE
@@ -0,0 +1,46 @@
+This software is dual-licensed under the ISC and MIT licenses.
+You may use this software under EITHER of the following licenses.
+
+----------
+
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+----------
+
+Copyright Isaac Z. Schlueter and Contributors
+All rights reserved.
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/homework7/project_express/node_modules/abbrev/README.md b/homework7/project_express/node_modules/abbrev/README.md
new file mode 100644
index 0000000..99746fe
--- /dev/null
+++ b/homework7/project_express/node_modules/abbrev/README.md
@@ -0,0 +1,23 @@
+# abbrev-js
+
+Just like [ruby's Abbrev](http://apidock.com/ruby/Abbrev).
+
+Usage:
+
+ var abbrev = require("abbrev");
+ abbrev("foo", "fool", "folding", "flop");
+
+ // returns:
+ { fl: 'flop'
+ , flo: 'flop'
+ , flop: 'flop'
+ , fol: 'folding'
+ , fold: 'folding'
+ , foldi: 'folding'
+ , foldin: 'folding'
+ , folding: 'folding'
+ , foo: 'foo'
+ , fool: 'fool'
+ }
+
+This is handy for command-line scripts, or other cases where you want to be able to accept shorthands.
diff --git a/homework7/project_express/node_modules/abbrev/abbrev.js b/homework7/project_express/node_modules/abbrev/abbrev.js
new file mode 100644
index 0000000..7b1dc5d
--- /dev/null
+++ b/homework7/project_express/node_modules/abbrev/abbrev.js
@@ -0,0 +1,61 @@
+module.exports = exports = abbrev.abbrev = abbrev
+
+abbrev.monkeyPatch = monkeyPatch
+
+function monkeyPatch () {
+ Object.defineProperty(Array.prototype, 'abbrev', {
+ value: function () { return abbrev(this) },
+ enumerable: false, configurable: true, writable: true
+ })
+
+ Object.defineProperty(Object.prototype, 'abbrev', {
+ value: function () { return abbrev(Object.keys(this)) },
+ enumerable: false, configurable: true, writable: true
+ })
+}
+
+function abbrev (list) {
+ if (arguments.length !== 1 || !Array.isArray(list)) {
+ list = Array.prototype.slice.call(arguments, 0)
+ }
+ for (var i = 0, l = list.length, args = [] ; i < l ; i ++) {
+ args[i] = typeof list[i] === "string" ? list[i] : String(list[i])
+ }
+
+ // sort them lexicographically, so that they're next to their nearest kin
+ args = args.sort(lexSort)
+
+ // walk through each, seeing how much it has in common with the next and previous
+ var abbrevs = {}
+ , prev = ""
+ for (var i = 0, l = args.length ; i < l ; i ++) {
+ var current = args[i]
+ , next = args[i + 1] || ""
+ , nextMatches = true
+ , prevMatches = true
+ if (current === next) continue
+ for (var j = 0, cl = current.length ; j < cl ; j ++) {
+ var curChar = current.charAt(j)
+ nextMatches = nextMatches && curChar === next.charAt(j)
+ prevMatches = prevMatches && curChar === prev.charAt(j)
+ if (!nextMatches && !prevMatches) {
+ j ++
+ break
+ }
+ }
+ prev = current
+ if (j === cl) {
+ abbrevs[current] = current
+ continue
+ }
+ for (var a = current.substr(0, j) ; j <= cl ; j ++) {
+ abbrevs[a] = current
+ a += current.charAt(j)
+ }
+ }
+ return abbrevs
+}
+
+function lexSort (a, b) {
+ return a === b ? 0 : a > b ? 1 : -1
+}
diff --git a/homework7/project_express/node_modules/abbrev/package.json b/homework7/project_express/node_modules/abbrev/package.json
new file mode 100644
index 0000000..bf4e801
--- /dev/null
+++ b/homework7/project_express/node_modules/abbrev/package.json
@@ -0,0 +1,21 @@
+{
+ "name": "abbrev",
+ "version": "1.1.1",
+ "description": "Like ruby's abbrev module, but in js",
+ "author": "Isaac Z. Schlueter ",
+ "main": "abbrev.js",
+ "scripts": {
+ "test": "tap test.js --100",
+ "preversion": "npm test",
+ "postversion": "npm publish",
+ "postpublish": "git push origin --all; git push origin --tags"
+ },
+ "repository": "http://github.com/isaacs/abbrev-js",
+ "license": "ISC",
+ "devDependencies": {
+ "tap": "^10.1"
+ },
+ "files": [
+ "abbrev.js"
+ ]
+}
diff --git a/homework7/project_express/node_modules/accepts/HISTORY.md b/homework7/project_express/node_modules/accepts/HISTORY.md
new file mode 100644
index 0000000..0bf0417
--- /dev/null
+++ b/homework7/project_express/node_modules/accepts/HISTORY.md
@@ -0,0 +1,236 @@
+1.3.7 / 2019-04-29
+==================
+
+ * deps: negotiator@0.6.2
+ - Fix sorting charset, encoding, and language with extra parameters
+
+1.3.6 / 2019-04-28
+==================
+
+ * deps: mime-types@~2.1.24
+ - deps: mime-db@~1.40.0
+
+1.3.5 / 2018-02-28
+==================
+
+ * deps: mime-types@~2.1.18
+ - deps: mime-db@~1.33.0
+
+1.3.4 / 2017-08-22
+==================
+
+ * deps: mime-types@~2.1.16
+ - deps: mime-db@~1.29.0
+
+1.3.3 / 2016-05-02
+==================
+
+ * deps: mime-types@~2.1.11
+ - deps: mime-db@~1.23.0
+ * deps: negotiator@0.6.1
+ - perf: improve `Accept` parsing speed
+ - perf: improve `Accept-Charset` parsing speed
+ - perf: improve `Accept-Encoding` parsing speed
+ - perf: improve `Accept-Language` parsing speed
+
+1.3.2 / 2016-03-08
+==================
+
+ * deps: mime-types@~2.1.10
+ - Fix extension of `application/dash+xml`
+ - Update primary extension for `audio/mp4`
+ - deps: mime-db@~1.22.0
+
+1.3.1 / 2016-01-19
+==================
+
+ * deps: mime-types@~2.1.9
+ - deps: mime-db@~1.21.0
+
+1.3.0 / 2015-09-29
+==================
+
+ * deps: mime-types@~2.1.7
+ - deps: mime-db@~1.19.0
+ * deps: negotiator@0.6.0
+ - Fix including type extensions in parameters in `Accept` parsing
+ - Fix parsing `Accept` parameters with quoted equals
+ - Fix parsing `Accept` parameters with quoted semicolons
+ - Lazy-load modules from main entry point
+ - perf: delay type concatenation until needed
+ - perf: enable strict mode
+ - perf: hoist regular expressions
+ - perf: remove closures getting spec properties
+ - perf: remove a closure from media type parsing
+ - perf: remove property delete from media type parsing
+
+1.2.13 / 2015-09-06
+===================
+
+ * deps: mime-types@~2.1.6
+ - deps: mime-db@~1.18.0
+
+1.2.12 / 2015-07-30
+===================
+
+ * deps: mime-types@~2.1.4
+ - deps: mime-db@~1.16.0
+
+1.2.11 / 2015-07-16
+===================
+
+ * deps: mime-types@~2.1.3
+ - deps: mime-db@~1.15.0
+
+1.2.10 / 2015-07-01
+===================
+
+ * deps: mime-types@~2.1.2
+ - deps: mime-db@~1.14.0
+
+1.2.9 / 2015-06-08
+==================
+
+ * deps: mime-types@~2.1.1
+ - perf: fix deopt during mapping
+
+1.2.8 / 2015-06-07
+==================
+
+ * deps: mime-types@~2.1.0
+ - deps: mime-db@~1.13.0
+ * perf: avoid argument reassignment & argument slice
+ * perf: avoid negotiator recursive construction
+ * perf: enable strict mode
+ * perf: remove unnecessary bitwise operator
+
+1.2.7 / 2015-05-10
+==================
+
+ * deps: negotiator@0.5.3
+ - Fix media type parameter matching to be case-insensitive
+
+1.2.6 / 2015-05-07
+==================
+
+ * deps: mime-types@~2.0.11
+ - deps: mime-db@~1.9.1
+ * deps: negotiator@0.5.2
+ - Fix comparing media types with quoted values
+ - Fix splitting media types with quoted commas
+
+1.2.5 / 2015-03-13
+==================
+
+ * deps: mime-types@~2.0.10
+ - deps: mime-db@~1.8.0
+
+1.2.4 / 2015-02-14
+==================
+
+ * Support Node.js 0.6
+ * deps: mime-types@~2.0.9
+ - deps: mime-db@~1.7.0
+ * deps: negotiator@0.5.1
+ - Fix preference sorting to be stable for long acceptable lists
+
+1.2.3 / 2015-01-31
+==================
+
+ * deps: mime-types@~2.0.8
+ - deps: mime-db@~1.6.0
+
+1.2.2 / 2014-12-30
+==================
+
+ * deps: mime-types@~2.0.7
+ - deps: mime-db@~1.5.0
+
+1.2.1 / 2014-12-30
+==================
+
+ * deps: mime-types@~2.0.5
+ - deps: mime-db@~1.3.1
+
+1.2.0 / 2014-12-19
+==================
+
+ * deps: negotiator@0.5.0
+ - Fix list return order when large accepted list
+ - Fix missing identity encoding when q=0 exists
+ - Remove dynamic building of Negotiator class
+
+1.1.4 / 2014-12-10
+==================
+
+ * deps: mime-types@~2.0.4
+ - deps: mime-db@~1.3.0
+
+1.1.3 / 2014-11-09
+==================
+
+ * deps: mime-types@~2.0.3
+ - deps: mime-db@~1.2.0
+
+1.1.2 / 2014-10-14
+==================
+
+ * deps: negotiator@0.4.9
+ - Fix error when media type has invalid parameter
+
+1.1.1 / 2014-09-28
+==================
+
+ * deps: mime-types@~2.0.2
+ - deps: mime-db@~1.1.0
+ * deps: negotiator@0.4.8
+ - Fix all negotiations to be case-insensitive
+ - Stable sort preferences of same quality according to client order
+
+1.1.0 / 2014-09-02
+==================
+
+ * update `mime-types`
+
+1.0.7 / 2014-07-04
+==================
+
+ * Fix wrong type returned from `type` when match after unknown extension
+
+1.0.6 / 2014-06-24
+==================
+
+ * deps: negotiator@0.4.7
+
+1.0.5 / 2014-06-20
+==================
+
+ * fix crash when unknown extension given
+
+1.0.4 / 2014-06-19
+==================
+
+ * use `mime-types`
+
+1.0.3 / 2014-06-11
+==================
+
+ * deps: negotiator@0.4.6
+ - Order by specificity when quality is the same
+
+1.0.2 / 2014-05-29
+==================
+
+ * Fix interpretation when header not in request
+ * deps: pin negotiator@0.4.5
+
+1.0.1 / 2014-01-18
+==================
+
+ * Identity encoding isn't always acceptable
+ * deps: negotiator@~0.4.0
+
+1.0.0 / 2013-12-27
+==================
+
+ * Genesis
diff --git a/homework7/project_express/node_modules/accepts/LICENSE b/homework7/project_express/node_modules/accepts/LICENSE
new file mode 100644
index 0000000..0616607
--- /dev/null
+++ b/homework7/project_express/node_modules/accepts/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong
+Copyright (c) 2015 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/homework7/project_express/node_modules/accepts/README.md b/homework7/project_express/node_modules/accepts/README.md
new file mode 100644
index 0000000..66a2f54
--- /dev/null
+++ b/homework7/project_express/node_modules/accepts/README.md
@@ -0,0 +1,142 @@
+# accepts
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Higher level content negotiation based on [negotiator](https://www.npmjs.com/package/negotiator).
+Extracted from [koa](https://www.npmjs.com/package/koa) for general use.
+
+In addition to negotiator, it allows:
+
+- Allows types as an array or arguments list, ie `(['text/html', 'application/json'])`
+ as well as `('text/html', 'application/json')`.
+- Allows type shorthands such as `json`.
+- Returns `false` when no types match
+- Treats non-existent headers as `*`
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install accepts
+```
+
+## API
+
+
+
+```js
+var accepts = require('accepts')
+```
+
+### accepts(req)
+
+Create a new `Accepts` object for the given `req`.
+
+#### .charset(charsets)
+
+Return the first accepted charset. If nothing in `charsets` is accepted,
+then `false` is returned.
+
+#### .charsets()
+
+Return the charsets that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .encoding(encodings)
+
+Return the first accepted encoding. If nothing in `encodings` is accepted,
+then `false` is returned.
+
+#### .encodings()
+
+Return the encodings that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .language(languages)
+
+Return the first accepted language. If nothing in `languages` is accepted,
+then `false` is returned.
+
+#### .languages()
+
+Return the languages that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .type(types)
+
+Return the first accepted type (and it is returned as the same text as what
+appears in the `types` array). If nothing in `types` is accepted, then `false`
+is returned.
+
+The `types` array can contain full MIME types or file extensions. Any value
+that is not a full MIME types is passed to `require('mime-types').lookup`.
+
+#### .types()
+
+Return the types that the request accepts, in the order of the client's
+preference (most preferred first).
+
+## Examples
+
+### Simple type negotiation
+
+This simple example shows how to use `accepts` to return a different typed
+respond body based on what the client wants to accept. The server lists it's
+preferences in order and will get back the best match between the client and
+server.
+
+```js
+var accepts = require('accepts')
+var http = require('http')
+
+function app (req, res) {
+ var accept = accepts(req)
+
+ // the order of this list is significant; should be server preferred order
+ switch (accept.type(['json', 'html'])) {
+ case 'json':
+ res.setHeader('Content-Type', 'application/json')
+ res.write('{"hello":"world!"}')
+ break
+ case 'html':
+ res.setHeader('Content-Type', 'text/html')
+ res.write('hello, world!')
+ break
+ default:
+ // the fallback is text/plain, so no need to specify it above
+ res.setHeader('Content-Type', 'text/plain')
+ res.write('hello, world!')
+ break
+ }
+
+ res.end()
+}
+
+http.createServer(app).listen(3000)
+```
+
+You can test this out with the cURL program:
+```sh
+curl -I -H'Accept: text/html' http://localhost:3000/
+```
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/accepts/master
+[coveralls-url]: https://coveralls.io/r/jshttp/accepts?branch=master
+[node-version-image]: https://badgen.net/npm/node/accepts
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/accepts
+[npm-url]: https://npmjs.org/package/accepts
+[npm-version-image]: https://badgen.net/npm/v/accepts
+[travis-image]: https://badgen.net/travis/jshttp/accepts/master
+[travis-url]: https://travis-ci.org/jshttp/accepts
diff --git a/homework7/project_express/node_modules/accepts/index.js b/homework7/project_express/node_modules/accepts/index.js
new file mode 100644
index 0000000..e9b2f63
--- /dev/null
+++ b/homework7/project_express/node_modules/accepts/index.js
@@ -0,0 +1,238 @@
+/*!
+ * accepts
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Negotiator = require('negotiator')
+var mime = require('mime-types')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Accepts
+
+/**
+ * Create a new Accepts object for the given req.
+ *
+ * @param {object} req
+ * @public
+ */
+
+function Accepts (req) {
+ if (!(this instanceof Accepts)) {
+ return new Accepts(req)
+ }
+
+ this.headers = req.headers
+ this.negotiator = new Negotiator(req)
+}
+
+/**
+ * Check if the given `type(s)` is acceptable, returning
+ * the best match when true, otherwise `undefined`, in which
+ * case you should respond with 406 "Not Acceptable".
+ *
+ * The `type` value may be a single mime type string
+ * such as "application/json", the extension name
+ * such as "json" or an array `["json", "html", "text/plain"]`. When a list
+ * or array is given the _best_ match, if any is returned.
+ *
+ * Examples:
+ *
+ * // Accept: text/html
+ * this.types('html');
+ * // => "html"
+ *
+ * // Accept: text/*, application/json
+ * this.types('html');
+ * // => "html"
+ * this.types('text/html');
+ * // => "text/html"
+ * this.types('json', 'text');
+ * // => "json"
+ * this.types('application/json');
+ * // => "application/json"
+ *
+ * // Accept: text/*, application/json
+ * this.types('image/png');
+ * this.types('png');
+ * // => undefined
+ *
+ * // Accept: text/*;q=.5, application/json
+ * this.types(['html', 'json']);
+ * this.types('html', 'json');
+ * // => "json"
+ *
+ * @param {String|Array} types...
+ * @return {String|Array|Boolean}
+ * @public
+ */
+
+Accepts.prototype.type =
+Accepts.prototype.types = function (types_) {
+ var types = types_
+
+ // support flattened arguments
+ if (types && !Array.isArray(types)) {
+ types = new Array(arguments.length)
+ for (var i = 0; i < types.length; i++) {
+ types[i] = arguments[i]
+ }
+ }
+
+ // no types, return all requested types
+ if (!types || types.length === 0) {
+ return this.negotiator.mediaTypes()
+ }
+
+ // no accept header, return first given type
+ if (!this.headers.accept) {
+ return types[0]
+ }
+
+ var mimes = types.map(extToMime)
+ var accepts = this.negotiator.mediaTypes(mimes.filter(validMime))
+ var first = accepts[0]
+
+ return first
+ ? types[mimes.indexOf(first)]
+ : false
+}
+
+/**
+ * Return accepted encodings or best fit based on `encodings`.
+ *
+ * Given `Accept-Encoding: gzip, deflate`
+ * an array sorted by quality is returned:
+ *
+ * ['gzip', 'deflate']
+ *
+ * @param {String|Array} encodings...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.encoding =
+Accepts.prototype.encodings = function (encodings_) {
+ var encodings = encodings_
+
+ // support flattened arguments
+ if (encodings && !Array.isArray(encodings)) {
+ encodings = new Array(arguments.length)
+ for (var i = 0; i < encodings.length; i++) {
+ encodings[i] = arguments[i]
+ }
+ }
+
+ // no encodings, return all requested encodings
+ if (!encodings || encodings.length === 0) {
+ return this.negotiator.encodings()
+ }
+
+ return this.negotiator.encodings(encodings)[0] || false
+}
+
+/**
+ * Return accepted charsets or best fit based on `charsets`.
+ *
+ * Given `Accept-Charset: utf-8, iso-8859-1;q=0.2, utf-7;q=0.5`
+ * an array sorted by quality is returned:
+ *
+ * ['utf-8', 'utf-7', 'iso-8859-1']
+ *
+ * @param {String|Array} charsets...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.charset =
+Accepts.prototype.charsets = function (charsets_) {
+ var charsets = charsets_
+
+ // support flattened arguments
+ if (charsets && !Array.isArray(charsets)) {
+ charsets = new Array(arguments.length)
+ for (var i = 0; i < charsets.length; i++) {
+ charsets[i] = arguments[i]
+ }
+ }
+
+ // no charsets, return all requested charsets
+ if (!charsets || charsets.length === 0) {
+ return this.negotiator.charsets()
+ }
+
+ return this.negotiator.charsets(charsets)[0] || false
+}
+
+/**
+ * Return accepted languages or best fit based on `langs`.
+ *
+ * Given `Accept-Language: en;q=0.8, es, pt`
+ * an array sorted by quality is returned:
+ *
+ * ['es', 'pt', 'en']
+ *
+ * @param {String|Array} langs...
+ * @return {Array|String}
+ * @public
+ */
+
+Accepts.prototype.lang =
+Accepts.prototype.langs =
+Accepts.prototype.language =
+Accepts.prototype.languages = function (languages_) {
+ var languages = languages_
+
+ // support flattened arguments
+ if (languages && !Array.isArray(languages)) {
+ languages = new Array(arguments.length)
+ for (var i = 0; i < languages.length; i++) {
+ languages[i] = arguments[i]
+ }
+ }
+
+ // no languages, return all requested languages
+ if (!languages || languages.length === 0) {
+ return this.negotiator.languages()
+ }
+
+ return this.negotiator.languages(languages)[0] || false
+}
+
+/**
+ * Convert extnames to mime.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function extToMime (type) {
+ return type.indexOf('/') === -1
+ ? mime.lookup(type)
+ : type
+}
+
+/**
+ * Check if mime is valid.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function validMime (type) {
+ return typeof type === 'string'
+}
diff --git a/homework7/project_express/node_modules/accepts/package.json b/homework7/project_express/node_modules/accepts/package.json
new file mode 100644
index 0000000..1bbe63b
--- /dev/null
+++ b/homework7/project_express/node_modules/accepts/package.json
@@ -0,0 +1,86 @@
+{
+ "_from": "accepts@~1.3.7",
+ "_id": "accepts@1.3.7",
+ "_inBundle": false,
+ "_integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
+ "_location": "/accepts",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "accepts@~1.3.7",
+ "name": "accepts",
+ "escapedName": "accepts",
+ "rawSpec": "~1.3.7",
+ "saveSpec": null,
+ "fetchSpec": "~1.3.7"
+ },
+ "_requiredBy": [
+ "/express"
+ ],
+ "_resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
+ "_shasum": "531bc726517a3b2b41f850021c6cc15eaab507cd",
+ "_spec": "accepts@~1.3.7",
+ "_where": "D:\\Education\\JS-2\\7\\project_express\\node_modules\\express",
+ "bugs": {
+ "url": "https://github.com/jshttp/accepts/issues"
+ },
+ "bundleDependencies": false,
+ "contributors": [
+ {
+ "name": "Douglas Christopher Wilson",
+ "email": "doug@somethingdoug.com"
+ },
+ {
+ "name": "Jonathan Ong",
+ "email": "me@jongleberry.com",
+ "url": "http://jongleberry.com"
+ }
+ ],
+ "dependencies": {
+ "mime-types": "~2.1.24",
+ "negotiator": "0.6.2"
+ },
+ "deprecated": false,
+ "description": "Higher-level content negotiation",
+ "devDependencies": {
+ "deep-equal": "1.0.1",
+ "eslint": "5.16.0",
+ "eslint-config-standard": "12.0.0",
+ "eslint-plugin-import": "2.17.2",
+ "eslint-plugin-markdown": "1.0.0",
+ "eslint-plugin-node": "8.0.1",
+ "eslint-plugin-promise": "4.1.1",
+ "eslint-plugin-standard": "4.0.0",
+ "mocha": "6.1.4",
+ "nyc": "14.0.0"
+ },
+ "engines": {
+ "node": ">= 0.6"
+ },
+ "files": [
+ "LICENSE",
+ "HISTORY.md",
+ "index.js"
+ ],
+ "homepage": "https://github.com/jshttp/accepts#readme",
+ "keywords": [
+ "content",
+ "negotiation",
+ "accept",
+ "accepts"
+ ],
+ "license": "MIT",
+ "name": "accepts",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/jshttp/accepts.git"
+ },
+ "scripts": {
+ "lint": "eslint --plugin markdown --ext js,md .",
+ "test": "mocha --reporter spec --check-leaks --bail test/",
+ "test-cov": "nyc --reporter=html --reporter=text npm test",
+ "test-travis": "nyc --reporter=text npm test"
+ },
+ "version": "1.3.7"
+}
diff --git a/homework7/project_express/node_modules/amdefine/LICENSE b/homework7/project_express/node_modules/amdefine/LICENSE
new file mode 100644
index 0000000..9b25ee0
--- /dev/null
+++ b/homework7/project_express/node_modules/amdefine/LICENSE
@@ -0,0 +1,58 @@
+amdefine is released under two licenses: new BSD, and MIT. You may pick the
+license that best suits your development needs. The text of both licenses are
+provided below.
+
+
+The "New" BSD License:
+----------------------
+
+Copyright (c) 2011-2016, The Dojo Foundation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ * Neither the name of the Dojo Foundation nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+
+MIT License
+-----------
+
+Copyright (c) 2011-2016, The Dojo Foundation
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/homework7/project_express/node_modules/amdefine/README.md b/homework7/project_express/node_modules/amdefine/README.md
new file mode 100644
index 0000000..037a6e8
--- /dev/null
+++ b/homework7/project_express/node_modules/amdefine/README.md
@@ -0,0 +1,171 @@
+# amdefine
+
+A module that can be used to implement AMD's define() in Node. This allows you
+to code to the AMD API and have the module work in node programs without
+requiring those other programs to use AMD.
+
+## Usage
+
+**1)** Update your package.json to indicate amdefine as a dependency:
+
+```javascript
+ "dependencies": {
+ "amdefine": ">=0.1.0"
+ }
+```
+
+Then run `npm install` to get amdefine into your project.
+
+**2)** At the top of each module that uses define(), place this code:
+
+```javascript
+if (typeof define !== 'function') { var define = require('amdefine')(module) }
+```
+
+**Only use these snippets** when loading amdefine. If you preserve the basic structure,
+with the braces, it will be stripped out when using the [RequireJS optimizer](#optimizer).
+
+You can add spaces, line breaks and even require amdefine with a local path, but
+keep the rest of the structure to get the stripping behavior.
+
+As you may know, because `if` statements in JavaScript don't have their own scope, the var
+declaration in the above snippet is made whether the `if` expression is truthy or not. If
+RequireJS is loaded then the declaration is superfluous because `define` is already already
+declared in the same scope in RequireJS. Fortunately JavaScript handles multiple `var`
+declarations of the same variable in the same scope gracefully.
+
+If you want to deliver amdefine.js with your code rather than specifying it as a dependency
+with npm, then just download the latest release and refer to it using a relative path:
+
+[Latest Version](https://github.com/jrburke/amdefine/raw/latest/amdefine.js)
+
+### amdefine/intercept
+
+Consider this very experimental.
+
+Instead of pasting the piece of text for the amdefine setup of a `define`
+variable in each module you create or consume, you can use `amdefine/intercept`
+instead. It will automatically insert the above snippet in each .js file loaded
+by Node.
+
+**Warning**: you should only use this if you are creating an application that
+is consuming AMD style defined()'d modules that are distributed via npm and want
+to run that code in Node.
+
+For library code where you are not sure if it will be used by others in Node or
+in the browser, then explicitly depending on amdefine and placing the code
+snippet above is suggested path, instead of using `amdefine/intercept`. The
+intercept module affects all .js files loaded in the Node app, and it is
+inconsiderate to modify global state like that unless you are also controlling
+the top level app.
+
+#### Why distribute AMD-style modules via npm?
+
+npm has a lot of weaknesses for front-end use (installed layout is not great,
+should have better support for the `baseUrl + moduleID + '.js' style of loading,
+single file JS installs), but some people want a JS package manager and are
+willing to live with those constraints. If that is you, but still want to author
+in AMD style modules to get dynamic require([]), better direct source usage and
+powerful loader plugin support in the browser, then this tool can help.
+
+#### amdefine/intercept usage
+
+Just require it in your top level app module (for example index.js, server.js):
+
+```javascript
+require('amdefine/intercept');
+```
+
+The module does not return a value, so no need to assign the result to a local
+variable.
+
+Then just require() code as you normally would with Node's require(). Any .js
+loaded after the intercept require will have the amdefine check injected in
+the .js source as it is loaded. It does not modify the source on disk, just
+prepends some content to the text of the module as it is loaded by Node.
+
+#### How amdefine/intercept works
+
+It overrides the `Module._extensions['.js']` in Node to automatically prepend
+the amdefine snippet above. So, it will affect any .js file loaded by your
+app.
+
+## define() usage
+
+It is best if you use the anonymous forms of define() in your module:
+
+```javascript
+define(function (require) {
+ var dependency = require('dependency');
+});
+```
+
+or
+
+```javascript
+define(['dependency'], function (dependency) {
+
+});
+```
+
+## RequireJS optimizer integration.
+
+Version 1.0.3 of the [RequireJS optimizer](http://requirejs.org/docs/optimization.html)
+will have support for stripping the `if (typeof define !== 'function')` check
+mentioned above, so you can include this snippet for code that runs in the
+browser, but avoid taking the cost of the if() statement once the code is
+optimized for deployment.
+
+## Node 0.4 Support
+
+If you want to support Node 0.4, then add `require` as the second parameter to amdefine:
+
+```javascript
+//Only if you want Node 0.4. If using 0.5 or later, use the above snippet.
+if (typeof define !== 'function') { var define = require('amdefine')(module, require) }
+```
+
+## Limitations
+
+### Synchronous vs Asynchronous
+
+amdefine creates a define() function that is callable by your code. It will
+execute and trace dependencies and call the factory function *synchronously*,
+to keep the behavior in line with Node's synchronous dependency tracing.
+
+The exception: calling AMD's callback-style require() from inside a factory
+function. The require callback is called on process.nextTick():
+
+```javascript
+define(function (require) {
+ require(['a'], function(a) {
+ //'a' is loaded synchronously, but
+ //this callback is called on process.nextTick().
+ });
+});
+```
+
+### Loader Plugins
+
+Loader plugins are supported as long as they call their load() callbacks
+synchronously. So ones that do network requests will not work. However plugins
+like [text](http://requirejs.org/docs/api.html#text) can load text files locally.
+
+The plugin API's `load.fromText()` is **not supported** in amdefine, so this means
+transpiler plugins like the [CoffeeScript loader plugin](https://github.com/jrburke/require-cs)
+will not work. This may be fixable, but it is a bit complex, and I do not have
+enough node-fu to figure it out yet. See the source for amdefine.js if you want
+to get an idea of the issues involved.
+
+## Tests
+
+To run the tests, cd to **tests** and run:
+
+```
+node all.js
+node all-intercept.js
+```
+
+## License
+
+New BSD and MIT. Check the LICENSE file for all the details.
diff --git a/homework7/project_express/node_modules/amdefine/amdefine.js b/homework7/project_express/node_modules/amdefine/amdefine.js
new file mode 100644
index 0000000..ca830ba
--- /dev/null
+++ b/homework7/project_express/node_modules/amdefine/amdefine.js
@@ -0,0 +1,301 @@
+/** vim: et:ts=4:sw=4:sts=4
+ * @license amdefine 1.0.1 Copyright (c) 2011-2016, The Dojo Foundation All Rights Reserved.
+ * Available via the MIT or new BSD license.
+ * see: http://github.com/jrburke/amdefine for details
+ */
+
+/*jslint node: true */
+/*global module, process */
+'use strict';
+
+/**
+ * Creates a define for node.
+ * @param {Object} module the "module" object that is defined by Node for the
+ * current module.
+ * @param {Function} [requireFn]. Node's require function for the current module.
+ * It only needs to be passed in Node versions before 0.5, when module.require
+ * did not exist.
+ * @returns {Function} a define function that is usable for the current node
+ * module.
+ */
+function amdefine(module, requireFn) {
+ 'use strict';
+ var defineCache = {},
+ loaderCache = {},
+ alreadyCalled = false,
+ path = require('path'),
+ makeRequire, stringRequire;
+
+ /**
+ * Trims the . and .. from an array of path segments.
+ * It will keep a leading path segment if a .. will become
+ * the first path segment, to help with module name lookups,
+ * which act like paths, but can be remapped. But the end result,
+ * all paths that use this function should look normalized.
+ * NOTE: this method MODIFIES the input array.
+ * @param {Array} ary the array of path segments.
+ */
+ function trimDots(ary) {
+ var i, part;
+ for (i = 0; ary[i]; i+= 1) {
+ part = ary[i];
+ if (part === '.') {
+ ary.splice(i, 1);
+ i -= 1;
+ } else if (part === '..') {
+ if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
+ //End of the line. Keep at least one non-dot
+ //path segment at the front so it can be mapped
+ //correctly to disk. Otherwise, there is likely
+ //no path mapping for a path starting with '..'.
+ //This can still fail, but catches the most reasonable
+ //uses of ..
+ break;
+ } else if (i > 0) {
+ ary.splice(i - 1, 2);
+ i -= 2;
+ }
+ }
+ }
+ }
+
+ function normalize(name, baseName) {
+ var baseParts;
+
+ //Adjust any relative paths.
+ if (name && name.charAt(0) === '.') {
+ //If have a base name, try to normalize against it,
+ //otherwise, assume it is a top-level require that will
+ //be relative to baseUrl in the end.
+ if (baseName) {
+ baseParts = baseName.split('/');
+ baseParts = baseParts.slice(0, baseParts.length - 1);
+ baseParts = baseParts.concat(name.split('/'));
+ trimDots(baseParts);
+ name = baseParts.join('/');
+ }
+ }
+
+ return name;
+ }
+
+ /**
+ * Create the normalize() function passed to a loader plugin's
+ * normalize method.
+ */
+ function makeNormalize(relName) {
+ return function (name) {
+ return normalize(name, relName);
+ };
+ }
+
+ function makeLoad(id) {
+ function load(value) {
+ loaderCache[id] = value;
+ }
+
+ load.fromText = function (id, text) {
+ //This one is difficult because the text can/probably uses
+ //define, and any relative paths and requires should be relative
+ //to that id was it would be found on disk. But this would require
+ //bootstrapping a module/require fairly deeply from node core.
+ //Not sure how best to go about that yet.
+ throw new Error('amdefine does not implement load.fromText');
+ };
+
+ return load;
+ }
+
+ makeRequire = function (systemRequire, exports, module, relId) {
+ function amdRequire(deps, callback) {
+ if (typeof deps === 'string') {
+ //Synchronous, single module require('')
+ return stringRequire(systemRequire, exports, module, deps, relId);
+ } else {
+ //Array of dependencies with a callback.
+
+ //Convert the dependencies to modules.
+ deps = deps.map(function (depName) {
+ return stringRequire(systemRequire, exports, module, depName, relId);
+ });
+
+ //Wait for next tick to call back the require call.
+ if (callback) {
+ process.nextTick(function () {
+ callback.apply(null, deps);
+ });
+ }
+ }
+ }
+
+ amdRequire.toUrl = function (filePath) {
+ if (filePath.indexOf('.') === 0) {
+ return normalize(filePath, path.dirname(module.filename));
+ } else {
+ return filePath;
+ }
+ };
+
+ return amdRequire;
+ };
+
+ //Favor explicit value, passed in if the module wants to support Node 0.4.
+ requireFn = requireFn || function req() {
+ return module.require.apply(module, arguments);
+ };
+
+ function runFactory(id, deps, factory) {
+ var r, e, m, result;
+
+ if (id) {
+ e = loaderCache[id] = {};
+ m = {
+ id: id,
+ uri: __filename,
+ exports: e
+ };
+ r = makeRequire(requireFn, e, m, id);
+ } else {
+ //Only support one define call per file
+ if (alreadyCalled) {
+ throw new Error('amdefine with no module ID cannot be called more than once per file.');
+ }
+ alreadyCalled = true;
+
+ //Use the real variables from node
+ //Use module.exports for exports, since
+ //the exports in here is amdefine exports.
+ e = module.exports;
+ m = module;
+ r = makeRequire(requireFn, e, m, module.id);
+ }
+
+ //If there are dependencies, they are strings, so need
+ //to convert them to dependency values.
+ if (deps) {
+ deps = deps.map(function (depName) {
+ return r(depName);
+ });
+ }
+
+ //Call the factory with the right dependencies.
+ if (typeof factory === 'function') {
+ result = factory.apply(m.exports, deps);
+ } else {
+ result = factory;
+ }
+
+ if (result !== undefined) {
+ m.exports = result;
+ if (id) {
+ loaderCache[id] = m.exports;
+ }
+ }
+ }
+
+ stringRequire = function (systemRequire, exports, module, id, relId) {
+ //Split the ID by a ! so that
+ var index = id.indexOf('!'),
+ originalId = id,
+ prefix, plugin;
+
+ if (index === -1) {
+ id = normalize(id, relId);
+
+ //Straight module lookup. If it is one of the special dependencies,
+ //deal with it, otherwise, delegate to node.
+ if (id === 'require') {
+ return makeRequire(systemRequire, exports, module, relId);
+ } else if (id === 'exports') {
+ return exports;
+ } else if (id === 'module') {
+ return module;
+ } else if (loaderCache.hasOwnProperty(id)) {
+ return loaderCache[id];
+ } else if (defineCache[id]) {
+ runFactory.apply(null, defineCache[id]);
+ return loaderCache[id];
+ } else {
+ if(systemRequire) {
+ return systemRequire(originalId);
+ } else {
+ throw new Error('No module with ID: ' + id);
+ }
+ }
+ } else {
+ //There is a plugin in play.
+ prefix = id.substring(0, index);
+ id = id.substring(index + 1, id.length);
+
+ plugin = stringRequire(systemRequire, exports, module, prefix, relId);
+
+ if (plugin.normalize) {
+ id = plugin.normalize(id, makeNormalize(relId));
+ } else {
+ //Normalize the ID normally.
+ id = normalize(id, relId);
+ }
+
+ if (loaderCache[id]) {
+ return loaderCache[id];
+ } else {
+ plugin.load(id, makeRequire(systemRequire, exports, module, relId), makeLoad(id), {});
+
+ return loaderCache[id];
+ }
+ }
+ };
+
+ //Create a define function specific to the module asking for amdefine.
+ function define(id, deps, factory) {
+ if (Array.isArray(id)) {
+ factory = deps;
+ deps = id;
+ id = undefined;
+ } else if (typeof id !== 'string') {
+ factory = id;
+ id = deps = undefined;
+ }
+
+ if (deps && !Array.isArray(deps)) {
+ factory = deps;
+ deps = undefined;
+ }
+
+ if (!deps) {
+ deps = ['require', 'exports', 'module'];
+ }
+
+ //Set up properties for this module. If an ID, then use
+ //internal cache. If no ID, then use the external variables
+ //for this node module.
+ if (id) {
+ //Put the module in deep freeze until there is a
+ //require call for it.
+ defineCache[id] = [id, deps, factory];
+ } else {
+ runFactory(id, deps, factory);
+ }
+ }
+
+ //define.require, which has access to all the values in the
+ //cache. Useful for AMD modules that all have IDs in the file,
+ //but need to finally export a value to node based on one of those
+ //IDs.
+ define.require = function (id) {
+ if (loaderCache[id]) {
+ return loaderCache[id];
+ }
+
+ if (defineCache[id]) {
+ runFactory.apply(null, defineCache[id]);
+ return loaderCache[id];
+ }
+ };
+
+ define.amd = {};
+
+ return define;
+}
+
+module.exports = amdefine;
diff --git a/homework7/project_express/node_modules/amdefine/intercept.js b/homework7/project_express/node_modules/amdefine/intercept.js
new file mode 100644
index 0000000..771a983
--- /dev/null
+++ b/homework7/project_express/node_modules/amdefine/intercept.js
@@ -0,0 +1,36 @@
+/*jshint node: true */
+var inserted,
+ Module = require('module'),
+ fs = require('fs'),
+ existingExtFn = Module._extensions['.js'],
+ amdefineRegExp = /amdefine\.js/;
+
+inserted = "if (typeof define !== 'function') {var define = require('amdefine')(module)}";
+
+//From the node/lib/module.js source:
+function stripBOM(content) {
+ // Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
+ // because the buffer-to-string conversion in `fs.readFileSync()`
+ // translates it to FEFF, the UTF-16 BOM.
+ if (content.charCodeAt(0) === 0xFEFF) {
+ content = content.slice(1);
+ }
+ return content;
+}
+
+//Also adapted from the node/lib/module.js source:
+function intercept(module, filename) {
+ var content = stripBOM(fs.readFileSync(filename, 'utf8'));
+
+ if (!amdefineRegExp.test(module.id)) {
+ content = inserted + content;
+ }
+
+ module._compile(content, filename);
+}
+
+intercept._id = 'amdefine/intercept';
+
+if (!existingExtFn._id || existingExtFn._id !== intercept._id) {
+ Module._extensions['.js'] = intercept;
+}
diff --git a/homework7/project_express/node_modules/amdefine/package.json b/homework7/project_express/node_modules/amdefine/package.json
new file mode 100644
index 0000000..8be1714
--- /dev/null
+++ b/homework7/project_express/node_modules/amdefine/package.json
@@ -0,0 +1,16 @@
+{
+ "name": "amdefine",
+ "description": "Provide AMD's define() API for declaring modules in the AMD format",
+ "version": "1.0.1",
+ "homepage": "http://github.com/jrburke/amdefine",
+ "author": "James Burke (http://github.com/jrburke)",
+ "license": "BSD-3-Clause OR MIT",
+ "repository": {
+ "type": "git",
+ "url": "https://github.com/jrburke/amdefine.git"
+ },
+ "main": "./amdefine.js",
+ "engines": {
+ "node": ">=0.4.2"
+ }
+}
diff --git a/homework7/project_express/node_modules/anymatch/LICENSE b/homework7/project_express/node_modules/anymatch/LICENSE
new file mode 100644
index 0000000..491766c
--- /dev/null
+++ b/homework7/project_express/node_modules/anymatch/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) 2019 Elan Shanker, Paul Miller (https://paulmillr.com)
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/homework7/project_express/node_modules/anymatch/README.md b/homework7/project_express/node_modules/anymatch/README.md
new file mode 100644
index 0000000..1dd67f5
--- /dev/null
+++ b/homework7/project_express/node_modules/anymatch/README.md
@@ -0,0 +1,87 @@
+anymatch [](https://travis-ci.org/micromatch/anymatch) [](https://coveralls.io/r/micromatch/anymatch?branch=master)
+======
+Javascript module to match a string against a regular expression, glob, string,
+or function that takes the string as an argument and returns a truthy or falsy
+value. The matcher can also be an array of any or all of these. Useful for
+allowing a very flexible user-defined config to define things like file paths.
+
+__Note: This module has Bash-parity, please be aware that Windows-style backslashes are not supported as separators. See https://github.com/micromatch/micromatch#backslashes for more information.__
+
+
+Usage
+-----
+```sh
+npm install anymatch
+```
+
+#### anymatch(matchers, testString, [returnIndex], [options])
+* __matchers__: (_Array|String|RegExp|Function_)
+String to be directly matched, string with glob patterns, regular expression
+test, function that takes the testString as an argument and returns a truthy
+value if it should be matched, or an array of any number and mix of these types.
+* __testString__: (_String|Array_) The string to test against the matchers. If
+passed as an array, the first element of the array will be used as the
+`testString` for non-function matchers, while the entire array will be applied
+as the arguments for function matchers.
+* __options__: (_Object_ [optional]_) Any of the [picomatch](https://github.com/micromatch/picomatch#options) options.
+ * __returnIndex__: (_Boolean [optional]_) If true, return the array index of
+the first matcher that that testString matched, or -1 if no match, instead of a
+boolean result.
+
+```js
+const anymatch = require('anymatch');
+
+const matchers = [ 'path/to/file.js', 'path/anyjs/**/*.js', /foo.js$/, string => string.includes('bar') && string.length > 10 ] ;
+
+anymatch(matchers, 'path/to/file.js'); // true
+anymatch(matchers, 'path/anyjs/baz.js'); // true
+anymatch(matchers, 'path/to/foo.js'); // true
+anymatch(matchers, 'path/to/bar.js'); // true
+anymatch(matchers, 'bar.js'); // false
+
+// returnIndex = true
+anymatch(matchers, 'foo.js', {returnIndex: true}); // 2
+anymatch(matchers, 'path/anyjs/foo.js', {returnIndex: true}); // 1
+
+// any picomatc
+
+// using globs to match directories and their children
+anymatch('node_modules', 'node_modules'); // true
+anymatch('node_modules', 'node_modules/somelib/index.js'); // false
+anymatch('node_modules/**', 'node_modules/somelib/index.js'); // true
+anymatch('node_modules/**', '/absolute/path/to/node_modules/somelib/index.js'); // false
+anymatch('**/node_modules/**', '/absolute/path/to/node_modules/somelib/index.js'); // true
+
+const matcher = anymatch(matchers);
+['foo.js', 'bar.js'].filter(matcher); // [ 'foo.js' ]
+anymatch master* ❯
+
+```
+
+#### anymatch(matchers)
+You can also pass in only your matcher(s) to get a curried function that has
+already been bound to the provided matching criteria. This can be used as an
+`Array#filter` callback.
+
+```js
+var matcher = anymatch(matchers);
+
+matcher('path/to/file.js'); // true
+matcher('path/anyjs/baz.js', true); // 1
+
+['foo.js', 'bar.js'].filter(matcher); // ['foo.js']
+```
+
+Changelog
+----------
+[See release notes page on GitHub](https://github.com/micromatch/anymatch/releases)
+
+- **v3.0:** Removed `startIndex` and `endIndex` arguments. Node 8.x-only.
+- **v2.0:** [micromatch](https://github.com/jonschlinkert/micromatch) moves away from minimatch-parity and inline with Bash. This includes handling backslashes differently (see https://github.com/micromatch/micromatch#backslashes for more information).
+- **v1.2:** anymatch uses [micromatch](https://github.com/jonschlinkert/micromatch)
+for glob pattern matching. Issues with glob pattern matching should be
+reported directly to the [micromatch issue tracker](https://github.com/jonschlinkert/micromatch/issues).
+
+License
+-------
+[ISC](https://raw.github.com/micromatch/anymatch/master/LICENSE)
diff --git a/homework7/project_express/node_modules/anymatch/index.d.ts b/homework7/project_express/node_modules/anymatch/index.d.ts
new file mode 100644
index 0000000..196d061
--- /dev/null
+++ b/homework7/project_express/node_modules/anymatch/index.d.ts
@@ -0,0 +1,19 @@
+type AnymatchFn = (testString: string) => boolean;
+type AnymatchPattern = string|RegExp|AnymatchFn;
+type AnymatchMatcher = AnymatchPattern|AnymatchPattern[]
+type AnymatchTester = {
+ (testString: string|any[], returnIndex: true): number;
+ (testString: string|any[]): boolean;
+}
+
+type PicomatchOptions = {dot: boolean};
+
+declare const anymatch: {
+ (matchers: AnymatchMatcher): AnymatchTester;
+ (matchers: AnymatchMatcher, testString: string|any[], returnIndex: true | PicomatchOptions): number;
+ (matchers: AnymatchMatcher, testString: string|any[]): boolean;
+}
+
+export {AnymatchMatcher as Matcher}
+export {AnymatchTester as Tester}
+export default anymatch
diff --git a/homework7/project_express/node_modules/anymatch/index.js b/homework7/project_express/node_modules/anymatch/index.js
new file mode 100644
index 0000000..9fb3ebb
--- /dev/null
+++ b/homework7/project_express/node_modules/anymatch/index.js
@@ -0,0 +1,104 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", { value: true });
+
+const picomatch = require('picomatch');
+const normalizePath = require('normalize-path');
+
+/**
+ * @typedef {(testString: string) => boolean} AnymatchFn
+ * @typedef {string|RegExp|AnymatchFn} AnymatchPattern
+ * @typedef {AnymatchPattern|AnymatchPattern[]} AnymatchMatcher
+ */
+const BANG = '!';
+const DEFAULT_OPTIONS = {returnIndex: false};
+const arrify = (item) => Array.isArray(item) ? item : [item];
+
+/**
+ * @param {AnymatchPattern} matcher
+ * @param {object} options
+ * @returns {AnymatchFn}
+ */
+const createPattern = (matcher, options) => {
+ if (typeof matcher === 'function') {
+ return matcher;
+ }
+ if (typeof matcher === 'string') {
+ const glob = picomatch(matcher, options);
+ return (string) => matcher === string || glob(string);
+ }
+ if (matcher instanceof RegExp) {
+ return (string) => matcher.test(string);
+ }
+ return (string) => false;
+};
+
+/**
+ * @param {Array} patterns
+ * @param {Array} negPatterns
+ * @param {String|Array} args
+ * @param {Boolean} returnIndex
+ * @returns {boolean|number}
+ */
+const matchPatterns = (patterns, negPatterns, args, returnIndex) => {
+ const isList = Array.isArray(args);
+ const _path = isList ? args[0] : args;
+ if (!isList && typeof _path !== 'string') {
+ throw new TypeError('anymatch: second argument must be a string: got ' +
+ Object.prototype.toString.call(_path))
+ }
+ const path = normalizePath(_path);
+
+ for (let index = 0; index < negPatterns.length; index++) {
+ const nglob = negPatterns[index];
+ if (nglob(path)) {
+ return returnIndex ? -1 : false;
+ }
+ }
+
+ const applied = isList && [path].concat(args.slice(1));
+ for (let index = 0; index < patterns.length; index++) {
+ const pattern = patterns[index];
+ if (isList ? pattern(...applied) : pattern(path)) {
+ return returnIndex ? index : true;
+ }
+ }
+
+ return returnIndex ? -1 : false;
+};
+
+/**
+ * @param {AnymatchMatcher} matchers
+ * @param {Array|string} testString
+ * @param {object} options
+ * @returns {boolean|number|Function}
+ */
+const anymatch = (matchers, testString, options = DEFAULT_OPTIONS) => {
+ if (matchers == null) {
+ throw new TypeError('anymatch: specify first argument');
+ }
+ const opts = typeof options === 'boolean' ? {returnIndex: options} : options;
+ const returnIndex = opts.returnIndex || false;
+
+ // Early cache for matchers.
+ const mtchers = arrify(matchers);
+ const negatedGlobs = mtchers
+ .filter(item => typeof item === 'string' && item.charAt(0) === BANG)
+ .map(item => item.slice(1))
+ .map(item => picomatch(item, opts));
+ const patterns = mtchers
+ .filter(item => typeof item !== 'string' || (typeof item === 'string' && item.charAt(0) !== BANG))
+ .map(matcher => createPattern(matcher, opts));
+
+ if (testString == null) {
+ return (testString, ri = false) => {
+ const returnIndex = typeof ri === 'boolean' ? ri : false;
+ return matchPatterns(patterns, negatedGlobs, testString, returnIndex);
+ }
+ }
+
+ return matchPatterns(patterns, negatedGlobs, testString, returnIndex);
+};
+
+anymatch.default = anymatch;
+module.exports = anymatch;
diff --git a/homework7/project_express/node_modules/anymatch/package.json b/homework7/project_express/node_modules/anymatch/package.json
new file mode 100644
index 0000000..f9b5284
--- /dev/null
+++ b/homework7/project_express/node_modules/anymatch/package.json
@@ -0,0 +1,48 @@
+{
+ "name": "anymatch",
+ "version": "3.1.2",
+ "description": "Matches strings against configurable strings, globs, regular expressions, and/or functions",
+ "files": [
+ "index.js",
+ "index.d.ts"
+ ],
+ "dependencies": {
+ "normalize-path": "^3.0.0",
+ "picomatch": "^2.0.4"
+ },
+ "author": {
+ "name": "Elan Shanker",
+ "url": "https://github.com/es128"
+ },
+ "license": "ISC",
+ "homepage": "https://github.com/micromatch/anymatch",
+ "repository": {
+ "type": "git",
+ "url": "https://github.com/micromatch/anymatch"
+ },
+ "keywords": [
+ "match",
+ "any",
+ "string",
+ "file",
+ "fs",
+ "list",
+ "glob",
+ "regex",
+ "regexp",
+ "regular",
+ "expression",
+ "function"
+ ],
+ "scripts": {
+ "test": "nyc mocha",
+ "mocha": "mocha"
+ },
+ "devDependencies": {
+ "mocha": "^6.1.3",
+ "nyc": "^14.0.0"
+ },
+ "engines": {
+ "node": ">= 8"
+ }
+}
diff --git a/homework7/project_express/node_modules/array-flatten/LICENSE b/homework7/project_express/node_modules/array-flatten/LICENSE
new file mode 100644
index 0000000..983fbe8
--- /dev/null
+++ b/homework7/project_express/node_modules/array-flatten/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Blake Embrey (hello@blakeembrey.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/homework7/project_express/node_modules/array-flatten/README.md b/homework7/project_express/node_modules/array-flatten/README.md
new file mode 100644
index 0000000..91fa5b6
--- /dev/null
+++ b/homework7/project_express/node_modules/array-flatten/README.md
@@ -0,0 +1,43 @@
+# Array Flatten
+
+[![NPM version][npm-image]][npm-url]
+[![NPM downloads][downloads-image]][downloads-url]
+[![Build status][travis-image]][travis-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+
+> Flatten an array of nested arrays into a single flat array. Accepts an optional depth.
+
+## Installation
+
+```
+npm install array-flatten --save
+```
+
+## Usage
+
+```javascript
+var flatten = require('array-flatten')
+
+flatten([1, [2, [3, [4, [5], 6], 7], 8], 9])
+//=> [1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+flatten([1, [2, [3, [4, [5], 6], 7], 8], 9], 2)
+//=> [1, 2, 3, [4, [5], 6], 7, 8, 9]
+
+(function () {
+ flatten(arguments) //=> [1, 2, 3]
+})(1, [2, 3])
+```
+
+## License
+
+MIT
+
+[npm-image]: https://img.shields.io/npm/v/array-flatten.svg?style=flat
+[npm-url]: https://npmjs.org/package/array-flatten
+[downloads-image]: https://img.shields.io/npm/dm/array-flatten.svg?style=flat
+[downloads-url]: https://npmjs.org/package/array-flatten
+[travis-image]: https://img.shields.io/travis/blakeembrey/array-flatten.svg?style=flat
+[travis-url]: https://travis-ci.org/blakeembrey/array-flatten
+[coveralls-image]: https://img.shields.io/coveralls/blakeembrey/array-flatten.svg?style=flat
+[coveralls-url]: https://coveralls.io/r/blakeembrey/array-flatten?branch=master
diff --git a/homework7/project_express/node_modules/array-flatten/array-flatten.js b/homework7/project_express/node_modules/array-flatten/array-flatten.js
new file mode 100644
index 0000000..089117b
--- /dev/null
+++ b/homework7/project_express/node_modules/array-flatten/array-flatten.js
@@ -0,0 +1,64 @@
+'use strict'
+
+/**
+ * Expose `arrayFlatten`.
+ */
+module.exports = arrayFlatten
+
+/**
+ * Recursive flatten function with depth.
+ *
+ * @param {Array} array
+ * @param {Array} result
+ * @param {Number} depth
+ * @return {Array}
+ */
+function flattenWithDepth (array, result, depth) {
+ for (var i = 0; i < array.length; i++) {
+ var value = array[i]
+
+ if (depth > 0 && Array.isArray(value)) {
+ flattenWithDepth(value, result, depth - 1)
+ } else {
+ result.push(value)
+ }
+ }
+
+ return result
+}
+
+/**
+ * Recursive flatten function. Omitting depth is slightly faster.
+ *
+ * @param {Array} array
+ * @param {Array} result
+ * @return {Array}
+ */
+function flattenForever (array, result) {
+ for (var i = 0; i < array.length; i++) {
+ var value = array[i]
+
+ if (Array.isArray(value)) {
+ flattenForever(value, result)
+ } else {
+ result.push(value)
+ }
+ }
+
+ return result
+}
+
+/**
+ * Flatten an array, with the ability to define a depth.
+ *
+ * @param {Array} array
+ * @param {Number} depth
+ * @return {Array}
+ */
+function arrayFlatten (array, depth) {
+ if (depth == null) {
+ return flattenForever(array, [])
+ }
+
+ return flattenWithDepth(array, [], depth)
+}
diff --git a/homework7/project_express/node_modules/array-flatten/package.json b/homework7/project_express/node_modules/array-flatten/package.json
new file mode 100644
index 0000000..81593a2
--- /dev/null
+++ b/homework7/project_express/node_modules/array-flatten/package.json
@@ -0,0 +1,64 @@
+{
+ "_from": "array-flatten@1.1.1",
+ "_id": "array-flatten@1.1.1",
+ "_inBundle": false,
+ "_integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=",
+ "_location": "/array-flatten",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "array-flatten@1.1.1",
+ "name": "array-flatten",
+ "escapedName": "array-flatten",
+ "rawSpec": "1.1.1",
+ "saveSpec": null,
+ "fetchSpec": "1.1.1"
+ },
+ "_requiredBy": [
+ "/express"
+ ],
+ "_resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+ "_shasum": "9a5f699051b1e7073328f2a008968b64ea2955d2",
+ "_spec": "array-flatten@1.1.1",
+ "_where": "D:\\Education\\JS-2\\7\\project_express\\node_modules\\express",
+ "author": {
+ "name": "Blake Embrey",
+ "email": "hello@blakeembrey.com",
+ "url": "http://blakeembrey.me"
+ },
+ "bugs": {
+ "url": "https://github.com/blakeembrey/array-flatten/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Flatten an array of nested arrays into a single flat array",
+ "devDependencies": {
+ "istanbul": "^0.3.13",
+ "mocha": "^2.2.4",
+ "pre-commit": "^1.0.7",
+ "standard": "^3.7.3"
+ },
+ "files": [
+ "array-flatten.js",
+ "LICENSE"
+ ],
+ "homepage": "https://github.com/blakeembrey/array-flatten",
+ "keywords": [
+ "array",
+ "flatten",
+ "arguments",
+ "depth"
+ ],
+ "license": "MIT",
+ "main": "array-flatten.js",
+ "name": "array-flatten",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/blakeembrey/array-flatten.git"
+ },
+ "scripts": {
+ "test": "istanbul cover _mocha -- -R spec"
+ },
+ "version": "1.1.1"
+}
diff --git a/homework7/project_express/node_modules/async/LICENSE b/homework7/project_express/node_modules/async/LICENSE
new file mode 100644
index 0000000..b7f9d50
--- /dev/null
+++ b/homework7/project_express/node_modules/async/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2010 Caolan McMahon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/homework7/project_express/node_modules/async/README.md b/homework7/project_express/node_modules/async/README.md
new file mode 100644
index 0000000..951f76e
--- /dev/null
+++ b/homework7/project_express/node_modules/async/README.md
@@ -0,0 +1,1425 @@
+# Async.js
+
+Async is a utility module which provides straight-forward, powerful functions
+for working with asynchronous JavaScript. Although originally designed for
+use with [node.js](http://nodejs.org), it can also be used directly in the
+browser. Also supports [component](https://github.com/component/component).
+
+Async provides around 20 functions that include the usual 'functional'
+suspects (map, reduce, filter, each…) as well as some common patterns
+for asynchronous control flow (parallel, series, waterfall…). All these
+functions assume you follow the node.js convention of providing a single
+callback as the last argument of your async function.
+
+
+## Quick Examples
+
+```javascript
+async.map(['file1','file2','file3'], fs.stat, function(err, results){
+ // results is now an array of stats for each file
+});
+
+async.filter(['file1','file2','file3'], fs.exists, function(results){
+ // results now equals an array of the existing files
+});
+
+async.parallel([
+ function(){ ... },
+ function(){ ... }
+], callback);
+
+async.series([
+ function(){ ... },
+ function(){ ... }
+]);
+```
+
+There are many more functions available so take a look at the docs below for a
+full list. This module aims to be comprehensive, so if you feel anything is
+missing please create a GitHub issue for it.
+
+## Common Pitfalls
+
+### Binding a context to an iterator
+
+This section is really about bind, not about async. If you are wondering how to
+make async execute your iterators in a given context, or are confused as to why
+a method of another library isn't working as an iterator, study this example:
+
+```js
+// Here is a simple object with an (unnecessarily roundabout) squaring method
+var AsyncSquaringLibrary = {
+ squareExponent: 2,
+ square: function(number, callback){
+ var result = Math.pow(number, this.squareExponent);
+ setTimeout(function(){
+ callback(null, result);
+ }, 200);
+ }
+};
+
+async.map([1, 2, 3], AsyncSquaringLibrary.square, function(err, result){
+ // result is [NaN, NaN, NaN]
+ // This fails because the `this.squareExponent` expression in the square
+ // function is not evaluated in the context of AsyncSquaringLibrary, and is
+ // therefore undefined.
+});
+
+async.map([1, 2, 3], AsyncSquaringLibrary.square.bind(AsyncSquaringLibrary), function(err, result){
+ // result is [1, 4, 9]
+ // With the help of bind we can attach a context to the iterator before
+ // passing it to async. Now the square function will be executed in its
+ // 'home' AsyncSquaringLibrary context and the value of `this.squareExponent`
+ // will be as expected.
+});
+```
+
+## Download
+
+The source is available for download from
+[GitHub](http://github.com/caolan/async).
+Alternatively, you can install using Node Package Manager (npm):
+
+ npm install async
+
+__Development:__ [async.js](https://github.com/caolan/async/raw/master/lib/async.js) - 29.6kb Uncompressed
+
+## In the Browser
+
+So far it's been tested in IE6, IE7, IE8, FF3.6 and Chrome 5. Usage:
+
+```html
+
+
+```
+
+## Documentation
+
+### Collections
+
+* [each](#each)
+* [eachSeries](#eachSeries)
+* [eachLimit](#eachLimit)
+* [map](#map)
+* [mapSeries](#mapSeries)
+* [mapLimit](#mapLimit)
+* [filter](#filter)
+* [filterSeries](#filterSeries)
+* [reject](#reject)
+* [rejectSeries](#rejectSeries)
+* [reduce](#reduce)
+* [reduceRight](#reduceRight)
+* [detect](#detect)
+* [detectSeries](#detectSeries)
+* [sortBy](#sortBy)
+* [some](#some)
+* [every](#every)
+* [concat](#concat)
+* [concatSeries](#concatSeries)
+
+### Control Flow
+
+* [series](#series)
+* [parallel](#parallel)
+* [parallelLimit](#parallellimittasks-limit-callback)
+* [whilst](#whilst)
+* [doWhilst](#doWhilst)
+* [until](#until)
+* [doUntil](#doUntil)
+* [forever](#forever)
+* [waterfall](#waterfall)
+* [compose](#compose)
+* [applyEach](#applyEach)
+* [applyEachSeries](#applyEachSeries)
+* [queue](#queue)
+* [cargo](#cargo)
+* [auto](#auto)
+* [iterator](#iterator)
+* [apply](#apply)
+* [nextTick](#nextTick)
+* [times](#times)
+* [timesSeries](#timesSeries)
+
+### Utils
+
+* [memoize](#memoize)
+* [unmemoize](#unmemoize)
+* [log](#log)
+* [dir](#dir)
+* [noConflict](#noConflict)
+
+
+## Collections
+
+
+
+### each(arr, iterator, callback)
+
+Applies an iterator function to each item in an array, in parallel.
+The iterator is called with an item from the list and a callback for when it
+has finished. If the iterator passes an error to this callback, the main
+callback for the each function is immediately called with the error.
+
+Note, that since this function applies the iterator to each item in parallel
+there is no guarantee that the iterator functions will complete in order.
+
+__Arguments__
+
+* arr - An array to iterate over.
+* iterator(item, callback) - A function to apply to each item in the array.
+ The iterator is passed a callback(err) which must be called once it has
+ completed. If no error has occured, the callback should be run without
+ arguments or with an explicit null argument.
+* callback(err) - A callback which is called after all the iterator functions
+ have finished, or an error has occurred.
+
+__Example__
+
+```js
+// assuming openFiles is an array of file names and saveFile is a function
+// to save the modified contents of that file:
+
+async.each(openFiles, saveFile, function(err){
+ // if any of the saves produced an error, err would equal that error
+});
+```
+
+---------------------------------------
+
+
+
+### eachSeries(arr, iterator, callback)
+
+The same as each only the iterator is applied to each item in the array in
+series. The next iterator is only called once the current one has completed
+processing. This means the iterator functions will complete in order.
+
+
+---------------------------------------
+
+
+
+### eachLimit(arr, limit, iterator, callback)
+
+The same as each only no more than "limit" iterators will be simultaneously
+running at any time.
+
+Note that the items are not processed in batches, so there is no guarantee that
+ the first "limit" iterator functions will complete before any others are
+started.
+
+__Arguments__
+
+* arr - An array to iterate over.
+* limit - The maximum number of iterators to run at any time.
+* iterator(item, callback) - A function to apply to each item in the array.
+ The iterator is passed a callback(err) which must be called once it has
+ completed. If no error has occured, the callback should be run without
+ arguments or with an explicit null argument.
+* callback(err) - A callback which is called after all the iterator functions
+ have finished, or an error has occurred.
+
+__Example__
+
+```js
+// Assume documents is an array of JSON objects and requestApi is a
+// function that interacts with a rate-limited REST api.
+
+async.eachLimit(documents, 20, requestApi, function(err){
+ // if any of the saves produced an error, err would equal that error
+});
+```
+
+---------------------------------------
+
+
+### map(arr, iterator, callback)
+
+Produces a new array of values by mapping each value in the given array through
+the iterator function. The iterator is called with an item from the array and a
+callback for when it has finished processing. The callback takes 2 arguments,
+an error and the transformed item from the array. If the iterator passes an
+error to this callback, the main callback for the map function is immediately
+called with the error.
+
+Note, that since this function applies the iterator to each item in parallel
+there is no guarantee that the iterator functions will complete in order, however
+the results array will be in the same order as the original array.
+
+__Arguments__
+
+* arr - An array to iterate over.
+* iterator(item, callback) - A function to apply to each item in the array.
+ The iterator is passed a callback(err, transformed) which must be called once
+ it has completed with an error (which can be null) and a transformed item.
+* callback(err, results) - A callback which is called after all the iterator
+ functions have finished, or an error has occurred. Results is an array of the
+ transformed items from the original array.
+
+__Example__
+
+```js
+async.map(['file1','file2','file3'], fs.stat, function(err, results){
+ // results is now an array of stats for each file
+});
+```
+
+---------------------------------------
+
+
+### mapSeries(arr, iterator, callback)
+
+The same as map only the iterator is applied to each item in the array in
+series. The next iterator is only called once the current one has completed
+processing. The results array will be in the same order as the original.
+
+
+---------------------------------------
+
+
+### mapLimit(arr, limit, iterator, callback)
+
+The same as map only no more than "limit" iterators will be simultaneously
+running at any time.
+
+Note that the items are not processed in batches, so there is no guarantee that
+ the first "limit" iterator functions will complete before any others are
+started.
+
+__Arguments__
+
+* arr - An array to iterate over.
+* limit - The maximum number of iterators to run at any time.
+* iterator(item, callback) - A function to apply to each item in the array.
+ The iterator is passed a callback(err, transformed) which must be called once
+ it has completed with an error (which can be null) and a transformed item.
+* callback(err, results) - A callback which is called after all the iterator
+ functions have finished, or an error has occurred. Results is an array of the
+ transformed items from the original array.
+
+__Example__
+
+```js
+async.mapLimit(['file1','file2','file3'], 1, fs.stat, function(err, results){
+ // results is now an array of stats for each file
+});
+```
+
+---------------------------------------
+
+
+### filter(arr, iterator, callback)
+
+__Alias:__ select
+
+Returns a new array of all the values which pass an async truth test.
+_The callback for each iterator call only accepts a single argument of true or
+false, it does not accept an error argument first!_ This is in-line with the
+way node libraries work with truth tests like fs.exists. This operation is
+performed in parallel, but the results array will be in the same order as the
+original.
+
+__Arguments__
+
+* arr - An array to iterate over.
+* iterator(item, callback) - A truth test to apply to each item in the array.
+ The iterator is passed a callback(truthValue) which must be called with a
+ boolean argument once it has completed.
+* callback(results) - A callback which is called after all the iterator
+ functions have finished.
+
+__Example__
+
+```js
+async.filter(['file1','file2','file3'], fs.exists, function(results){
+ // results now equals an array of the existing files
+});
+```
+
+---------------------------------------
+
+
+### filterSeries(arr, iterator, callback)
+
+__alias:__ selectSeries
+
+The same as filter only the iterator is applied to each item in the array in
+series. The next iterator is only called once the current one has completed
+processing. The results array will be in the same order as the original.
+
+---------------------------------------
+
+
+### reject(arr, iterator, callback)
+
+The opposite of filter. Removes values that pass an async truth test.
+
+---------------------------------------
+
+
+### rejectSeries(arr, iterator, callback)
+
+The same as reject, only the iterator is applied to each item in the array
+in series.
+
+
+---------------------------------------
+
+
+### reduce(arr, memo, iterator, callback)
+
+__aliases:__ inject, foldl
+
+Reduces a list of values into a single value using an async iterator to return
+each successive step. Memo is the initial state of the reduction. This
+function only operates in series. For performance reasons, it may make sense to
+split a call to this function into a parallel map, then use the normal
+Array.prototype.reduce on the results. This function is for situations where
+each step in the reduction needs to be async, if you can get the data before
+reducing it then it's probably a good idea to do so.
+
+__Arguments__
+
+* arr - An array to iterate over.
+* memo - The initial state of the reduction.
+* iterator(memo, item, callback) - A function applied to each item in the
+ array to produce the next step in the reduction. The iterator is passed a
+ callback(err, reduction) which accepts an optional error as its first
+ argument, and the state of the reduction as the second. If an error is
+ passed to the callback, the reduction is stopped and the main callback is
+ immediately called with the error.
+* callback(err, result) - A callback which is called after all the iterator
+ functions have finished. Result is the reduced value.
+
+__Example__
+
+```js
+async.reduce([1,2,3], 0, function(memo, item, callback){
+ // pointless async:
+ process.nextTick(function(){
+ callback(null, memo + item)
+ });
+}, function(err, result){
+ // result is now equal to the last value of memo, which is 6
+});
+```
+
+---------------------------------------
+
+
+### reduceRight(arr, memo, iterator, callback)
+
+__Alias:__ foldr
+
+Same as reduce, only operates on the items in the array in reverse order.
+
+
+---------------------------------------
+
+
+### detect(arr, iterator, callback)
+
+Returns the first value in a list that passes an async truth test. The
+iterator is applied in parallel, meaning the first iterator to return true will
+fire the detect callback with that result. That means the result might not be
+the first item in the original array (in terms of order) that passes the test.
+
+If order within the original array is important then look at detectSeries.
+
+__Arguments__
+
+* arr - An array to iterate over.
+* iterator(item, callback) - A truth test to apply to each item in the array.
+ The iterator is passed a callback(truthValue) which must be called with a
+ boolean argument once it has completed.
+* callback(result) - A callback which is called as soon as any iterator returns
+ true, or after all the iterator functions have finished. Result will be
+ the first item in the array that passes the truth test (iterator) or the
+ value undefined if none passed.
+
+__Example__
+
+```js
+async.detect(['file1','file2','file3'], fs.exists, function(result){
+ // result now equals the first file in the list that exists
+});
+```
+
+---------------------------------------
+
+
+### detectSeries(arr, iterator, callback)
+
+The same as detect, only the iterator is applied to each item in the array
+in series. This means the result is always the first in the original array (in
+terms of array order) that passes the truth test.
+
+
+---------------------------------------
+
+
+### sortBy(arr, iterator, callback)
+
+Sorts a list by the results of running each value through an async iterator.
+
+__Arguments__
+
+* arr - An array to iterate over.
+* iterator(item, callback) - A function to apply to each item in the array.
+ The iterator is passed a callback(err, sortValue) which must be called once it
+ has completed with an error (which can be null) and a value to use as the sort
+ criteria.
+* callback(err, results) - A callback which is called after all the iterator
+ functions have finished, or an error has occurred. Results is the items from
+ the original array sorted by the values returned by the iterator calls.
+
+__Example__
+
+```js
+async.sortBy(['file1','file2','file3'], function(file, callback){
+ fs.stat(file, function(err, stats){
+ callback(err, stats.mtime);
+ });
+}, function(err, results){
+ // results is now the original array of files sorted by
+ // modified date
+});
+```
+
+---------------------------------------
+
+
+### some(arr, iterator, callback)
+
+__Alias:__ any
+
+Returns true if at least one element in the array satisfies an async test.
+_The callback for each iterator call only accepts a single argument of true or
+false, it does not accept an error argument first!_ This is in-line with the
+way node libraries work with truth tests like fs.exists. Once any iterator
+call returns true, the main callback is immediately called.
+
+__Arguments__
+
+* arr - An array to iterate over.
+* iterator(item, callback) - A truth test to apply to each item in the array.
+ The iterator is passed a callback(truthValue) which must be called with a
+ boolean argument once it has completed.
+* callback(result) - A callback which is called as soon as any iterator returns
+ true, or after all the iterator functions have finished. Result will be
+ either true or false depending on the values of the async tests.
+
+__Example__
+
+```js
+async.some(['file1','file2','file3'], fs.exists, function(result){
+ // if result is true then at least one of the files exists
+});
+```
+
+---------------------------------------
+
+
+### every(arr, iterator, callback)
+
+__Alias:__ all
+
+Returns true if every element in the array satisfies an async test.
+_The callback for each iterator call only accepts a single argument of true or
+false, it does not accept an error argument first!_ This is in-line with the
+way node libraries work with truth tests like fs.exists.
+
+__Arguments__
+
+* arr - An array to iterate over.
+* iterator(item, callback) - A truth test to apply to each item in the array.
+ The iterator is passed a callback(truthValue) which must be called with a
+ boolean argument once it has completed.
+* callback(result) - A callback which is called after all the iterator
+ functions have finished. Result will be either true or false depending on
+ the values of the async tests.
+
+__Example__
+
+```js
+async.every(['file1','file2','file3'], fs.exists, function(result){
+ // if result is true then every file exists
+});
+```
+
+---------------------------------------
+
+
+### concat(arr, iterator, callback)
+
+Applies an iterator to each item in a list, concatenating the results. Returns the
+concatenated list. The iterators are called in parallel, and the results are
+concatenated as they return. There is no guarantee that the results array will
+be returned in the original order of the arguments passed to the iterator function.
+
+__Arguments__
+
+* arr - An array to iterate over
+* iterator(item, callback) - A function to apply to each item in the array.
+ The iterator is passed a callback(err, results) which must be called once it
+ has completed with an error (which can be null) and an array of results.
+* callback(err, results) - A callback which is called after all the iterator
+ functions have finished, or an error has occurred. Results is an array containing
+ the concatenated results of the iterator function.
+
+__Example__
+
+```js
+async.concat(['dir1','dir2','dir3'], fs.readdir, function(err, files){
+ // files is now a list of filenames that exist in the 3 directories
+});
+```
+
+---------------------------------------
+
+
+### concatSeries(arr, iterator, callback)
+
+Same as async.concat, but executes in series instead of parallel.
+
+
+## Control Flow
+
+
+### series(tasks, [callback])
+
+Run an array of functions in series, each one running once the previous
+function has completed. If any functions in the series pass an error to its
+callback, no more functions are run and the callback for the series is
+immediately called with the value of the error. Once the tasks have completed,
+the results are passed to the final callback as an array.
+
+It is also possible to use an object instead of an array. Each property will be
+run as a function and the results will be passed to the final callback as an object
+instead of an array. This can be a more readable way of handling results from
+async.series.
+
+
+__Arguments__
+
+* tasks - An array or object containing functions to run, each function is passed
+ a callback(err, result) it must call on completion with an error (which can
+ be null) and an optional result value.
+* callback(err, results) - An optional callback to run once all the functions
+ have completed. This function gets a results array (or object) containing all
+ the result arguments passed to the task callbacks.
+
+__Example__
+
+```js
+async.series([
+ function(callback){
+ // do some stuff ...
+ callback(null, 'one');
+ },
+ function(callback){
+ // do some more stuff ...
+ callback(null, 'two');
+ }
+],
+// optional callback
+function(err, results){
+ // results is now equal to ['one', 'two']
+});
+
+
+// an example using an object instead of an array
+async.series({
+ one: function(callback){
+ setTimeout(function(){
+ callback(null, 1);
+ }, 200);
+ },
+ two: function(callback){
+ setTimeout(function(){
+ callback(null, 2);
+ }, 100);
+ }
+},
+function(err, results) {
+ // results is now equal to: {one: 1, two: 2}
+});
+```
+
+---------------------------------------
+
+
+### parallel(tasks, [callback])
+
+Run an array of functions in parallel, without waiting until the previous
+function has completed. If any of the functions pass an error to its
+callback, the main callback is immediately called with the value of the error.
+Once the tasks have completed, the results are passed to the final callback as an
+array.
+
+It is also possible to use an object instead of an array. Each property will be
+run as a function and the results will be passed to the final callback as an object
+instead of an array. This can be a more readable way of handling results from
+async.parallel.
+
+
+__Arguments__
+
+* tasks - An array or object containing functions to run, each function is passed
+ a callback(err, result) it must call on completion with an error (which can
+ be null) and an optional result value.
+* callback(err, results) - An optional callback to run once all the functions
+ have completed. This function gets a results array (or object) containing all
+ the result arguments passed to the task callbacks.
+
+__Example__
+
+```js
+async.parallel([
+ function(callback){
+ setTimeout(function(){
+ callback(null, 'one');
+ }, 200);
+ },
+ function(callback){
+ setTimeout(function(){
+ callback(null, 'two');
+ }, 100);
+ }
+],
+// optional callback
+function(err, results){
+ // the results array will equal ['one','two'] even though
+ // the second function had a shorter timeout.
+});
+
+
+// an example using an object instead of an array
+async.parallel({
+ one: function(callback){
+ setTimeout(function(){
+ callback(null, 1);
+ }, 200);
+ },
+ two: function(callback){
+ setTimeout(function(){
+ callback(null, 2);
+ }, 100);
+ }
+},
+function(err, results) {
+ // results is now equals to: {one: 1, two: 2}
+});
+```
+
+---------------------------------------
+
+
+### parallelLimit(tasks, limit, [callback])
+
+The same as parallel only the tasks are executed in parallel with a maximum of "limit"
+tasks executing at any time.
+
+Note that the tasks are not executed in batches, so there is no guarantee that
+the first "limit" tasks will complete before any others are started.
+
+__Arguments__
+
+* tasks - An array or object containing functions to run, each function is passed
+ a callback(err, result) it must call on completion with an error (which can
+ be null) and an optional result value.
+* limit - The maximum number of tasks to run at any time.
+* callback(err, results) - An optional callback to run once all the functions
+ have completed. This function gets a results array (or object) containing all
+ the result arguments passed to the task callbacks.
+
+---------------------------------------
+
+
+### whilst(test, fn, callback)
+
+Repeatedly call fn, while test returns true. Calls the callback when stopped,
+or an error occurs.
+
+__Arguments__
+
+* test() - synchronous truth test to perform before each execution of fn.
+* fn(callback) - A function to call each time the test passes. The function is
+ passed a callback(err) which must be called once it has completed with an
+ optional error argument.
+* callback(err) - A callback which is called after the test fails and repeated
+ execution of fn has stopped.
+
+__Example__
+
+```js
+var count = 0;
+
+async.whilst(
+ function () { return count < 5; },
+ function (callback) {
+ count++;
+ setTimeout(callback, 1000);
+ },
+ function (err) {
+ // 5 seconds have passed
+ }
+);
+```
+
+---------------------------------------
+
+
+### doWhilst(fn, test, callback)
+
+The post check version of whilst. To reflect the difference in the order of operations `test` and `fn` arguments are switched. `doWhilst` is to `whilst` as `do while` is to `while` in plain JavaScript.
+
+---------------------------------------
+
+
+### until(test, fn, callback)
+
+Repeatedly call fn, until test returns true. Calls the callback when stopped,
+or an error occurs.
+
+The inverse of async.whilst.
+
+---------------------------------------
+
+
+### doUntil(fn, test, callback)
+
+Like doWhilst except the test is inverted. Note the argument ordering differs from `until`.
+
+---------------------------------------
+
+
+### forever(fn, callback)
+
+Calls the asynchronous function 'fn' repeatedly, in series, indefinitely.
+If an error is passed to fn's callback then 'callback' is called with the
+error, otherwise it will never be called.
+
+---------------------------------------
+
+
+### waterfall(tasks, [callback])
+
+Runs an array of functions in series, each passing their results to the next in
+the array. However, if any of the functions pass an error to the callback, the
+next function is not executed and the main callback is immediately called with
+the error.
+
+__Arguments__
+
+* tasks - An array of functions to run, each function is passed a
+ callback(err, result1, result2, ...) it must call on completion. The first
+ argument is an error (which can be null) and any further arguments will be
+ passed as arguments in order to the next task.
+* callback(err, [results]) - An optional callback to run once all the functions
+ have completed. This will be passed the results of the last task's callback.
+
+
+
+__Example__
+
+```js
+async.waterfall([
+ function(callback){
+ callback(null, 'one', 'two');
+ },
+ function(arg1, arg2, callback){
+ callback(null, 'three');
+ },
+ function(arg1, callback){
+ // arg1 now equals 'three'
+ callback(null, 'done');
+ }
+], function (err, result) {
+ // result now equals 'done'
+});
+```
+
+---------------------------------------
+
+### compose(fn1, fn2...)
+
+Creates a function which is a composition of the passed asynchronous
+functions. Each function consumes the return value of the function that
+follows. Composing functions f(), g() and h() would produce the result of
+f(g(h())), only this version uses callbacks to obtain the return values.
+
+Each function is executed with the `this` binding of the composed function.
+
+__Arguments__
+
+* functions... - the asynchronous functions to compose
+
+
+__Example__
+
+```js
+function add1(n, callback) {
+ setTimeout(function () {
+ callback(null, n + 1);
+ }, 10);
+}
+
+function mul3(n, callback) {
+ setTimeout(function () {
+ callback(null, n * 3);
+ }, 10);
+}
+
+var add1mul3 = async.compose(mul3, add1);
+
+add1mul3(4, function (err, result) {
+ // result now equals 15
+});
+```
+
+---------------------------------------
+
+### applyEach(fns, args..., callback)
+
+Applies the provided arguments to each function in the array, calling the
+callback after all functions have completed. If you only provide the first
+argument then it will return a function which lets you pass in the
+arguments as if it were a single function call.
+
+__Arguments__
+
+* fns - the asynchronous functions to all call with the same arguments
+* args... - any number of separate arguments to pass to the function
+* callback - the final argument should be the callback, called when all
+ functions have completed processing
+
+
+__Example__
+
+```js
+async.applyEach([enableSearch, updateSchema], 'bucket', callback);
+
+// partial application example:
+async.each(
+ buckets,
+ async.applyEach([enableSearch, updateSchema]),
+ callback
+);
+```
+
+---------------------------------------
+
+
+### applyEachSeries(arr, iterator, callback)
+
+The same as applyEach only the functions are applied in series.
+
+---------------------------------------
+
+
+### queue(worker, concurrency)
+
+Creates a queue object with the specified concurrency. Tasks added to the
+queue will be processed in parallel (up to the concurrency limit). If all
+workers are in progress, the task is queued until one is available. Once
+a worker has completed a task, the task's callback is called.
+
+__Arguments__
+
+* worker(task, callback) - An asynchronous function for processing a queued
+ task, which must call its callback(err) argument when finished, with an
+ optional error as an argument.
+* concurrency - An integer for determining how many worker functions should be
+ run in parallel.
+
+__Queue objects__
+
+The queue object returned by this function has the following properties and
+methods:
+
+* length() - a function returning the number of items waiting to be processed.
+* concurrency - an integer for determining how many worker functions should be
+ run in parallel. This property can be changed after a queue is created to
+ alter the concurrency on-the-fly.
+* push(task, [callback]) - add a new task to the queue, the callback is called
+ once the worker has finished processing the task.
+ instead of a single task, an array of tasks can be submitted. the respective callback is used for every task in the list.
+* unshift(task, [callback]) - add a new task to the front of the queue.
+* saturated - a callback that is called when the queue length hits the concurrency and further tasks will be queued
+* empty - a callback that is called when the last item from the queue is given to a worker
+* drain - a callback that is called when the last item from the queue has returned from the worker
+
+__Example__
+
+```js
+// create a queue object with concurrency 2
+
+var q = async.queue(function (task, callback) {
+ console.log('hello ' + task.name);
+ callback();
+}, 2);
+
+
+// assign a callback
+q.drain = function() {
+ console.log('all items have been processed');
+}
+
+// add some items to the queue
+
+q.push({name: 'foo'}, function (err) {
+ console.log('finished processing foo');
+});
+q.push({name: 'bar'}, function (err) {
+ console.log('finished processing bar');
+});
+
+// add some items to the queue (batch-wise)
+
+q.push([{name: 'baz'},{name: 'bay'},{name: 'bax'}], function (err) {
+ console.log('finished processing bar');
+});
+
+// add some items to the front of the queue
+
+q.unshift({name: 'bar'}, function (err) {
+ console.log('finished processing bar');
+});
+```
+
+---------------------------------------
+
+
+### cargo(worker, [payload])
+
+Creates a cargo object with the specified payload. Tasks added to the
+cargo will be processed altogether (up to the payload limit). If the
+worker is in progress, the task is queued until it is available. Once
+the worker has completed some tasks, each callback of those tasks is called.
+
+__Arguments__
+
+* worker(tasks, callback) - An asynchronous function for processing an array of
+ queued tasks, which must call its callback(err) argument when finished, with
+ an optional error as an argument.
+* payload - An optional integer for determining how many tasks should be
+ processed per round; if omitted, the default is unlimited.
+
+__Cargo objects__
+
+The cargo object returned by this function has the following properties and
+methods:
+
+* length() - a function returning the number of items waiting to be processed.
+* payload - an integer for determining how many tasks should be
+ process per round. This property can be changed after a cargo is created to
+ alter the payload on-the-fly.
+* push(task, [callback]) - add a new task to the queue, the callback is called
+ once the worker has finished processing the task.
+ instead of a single task, an array of tasks can be submitted. the respective callback is used for every task in the list.
+* saturated - a callback that is called when the queue length hits the concurrency and further tasks will be queued
+* empty - a callback that is called when the last item from the queue is given to a worker
+* drain - a callback that is called when the last item from the queue has returned from the worker
+
+__Example__
+
+```js
+// create a cargo object with payload 2
+
+var cargo = async.cargo(function (tasks, callback) {
+ for(var i=0; i
+### auto(tasks, [callback])
+
+Determines the best order for running functions based on their requirements.
+Each function can optionally depend on other functions being completed first,
+and each function is run as soon as its requirements are satisfied. If any of
+the functions pass an error to their callback, that function will not complete
+(so any other functions depending on it will not run) and the main callback
+will be called immediately with the error. Functions also receive an object
+containing the results of functions which have completed so far.
+
+Note, all functions are called with a results object as a second argument,
+so it is unsafe to pass functions in the tasks object which cannot handle the
+extra argument. For example, this snippet of code:
+
+```js
+async.auto({
+ readData: async.apply(fs.readFile, 'data.txt', 'utf-8')
+}, callback);
+```
+
+will have the effect of calling readFile with the results object as the last
+argument, which will fail:
+
+```js
+fs.readFile('data.txt', 'utf-8', cb, {});
+```
+
+Instead, wrap the call to readFile in a function which does not forward the
+results object:
+
+```js
+async.auto({
+ readData: function(cb, results){
+ fs.readFile('data.txt', 'utf-8', cb);
+ }
+}, callback);
+```
+
+__Arguments__
+
+* tasks - An object literal containing named functions or an array of
+ requirements, with the function itself the last item in the array. The key
+ used for each function or array is used when specifying requirements. The
+ function receives two arguments: (1) a callback(err, result) which must be
+ called when finished, passing an error (which can be null) and the result of
+ the function's execution, and (2) a results object, containing the results of
+ the previously executed functions.
+* callback(err, results) - An optional callback which is called when all the
+ tasks have been completed. The callback will receive an error as an argument
+ if any tasks pass an error to their callback. Results will always be passed
+ but if an error occurred, no other tasks will be performed, and the results
+ object will only contain partial results.
+
+
+__Example__
+
+```js
+async.auto({
+ get_data: function(callback){
+ // async code to get some data
+ },
+ make_folder: function(callback){
+ // async code to create a directory to store a file in
+ // this is run at the same time as getting the data
+ },
+ write_file: ['get_data', 'make_folder', function(callback){
+ // once there is some data and the directory exists,
+ // write the data to a file in the directory
+ callback(null, filename);
+ }],
+ email_link: ['write_file', function(callback, results){
+ // once the file is written let's email a link to it...
+ // results.write_file contains the filename returned by write_file.
+ }]
+});
+```
+
+This is a fairly trivial example, but to do this using the basic parallel and
+series functions would look like this:
+
+```js
+async.parallel([
+ function(callback){
+ // async code to get some data
+ },
+ function(callback){
+ // async code to create a directory to store a file in
+ // this is run at the same time as getting the data
+ }
+],
+function(err, results){
+ async.series([
+ function(callback){
+ // once there is some data and the directory exists,
+ // write the data to a file in the directory
+ },
+ function(callback){
+ // once the file is written let's email a link to it...
+ }
+ ]);
+});
+```
+
+For a complicated series of async tasks using the auto function makes adding
+new tasks much easier and makes the code more readable.
+
+
+---------------------------------------
+
+
+### iterator(tasks)
+
+Creates an iterator function which calls the next function in the array,
+returning a continuation to call the next one after that. It's also possible to
+'peek' the next iterator by doing iterator.next().
+
+This function is used internally by the async module but can be useful when
+you want to manually control the flow of functions in series.
+
+__Arguments__
+
+* tasks - An array of functions to run.
+
+__Example__
+
+```js
+var iterator = async.iterator([
+ function(){ sys.p('one'); },
+ function(){ sys.p('two'); },
+ function(){ sys.p('three'); }
+]);
+
+node> var iterator2 = iterator();
+'one'
+node> var iterator3 = iterator2();
+'two'
+node> iterator3();
+'three'
+node> var nextfn = iterator2.next();
+node> nextfn();
+'three'
+```
+
+---------------------------------------
+
+
+### apply(function, arguments..)
+
+Creates a continuation function with some arguments already applied, a useful
+shorthand when combined with other control flow functions. Any arguments
+passed to the returned function are added to the arguments originally passed
+to apply.
+
+__Arguments__
+
+* function - The function you want to eventually apply all arguments to.
+* arguments... - Any number of arguments to automatically apply when the
+ continuation is called.
+
+__Example__
+
+```js
+// using apply
+
+async.parallel([
+ async.apply(fs.writeFile, 'testfile1', 'test1'),
+ async.apply(fs.writeFile, 'testfile2', 'test2'),
+]);
+
+
+// the same process without using apply
+
+async.parallel([
+ function(callback){
+ fs.writeFile('testfile1', 'test1', callback);
+ },
+ function(callback){
+ fs.writeFile('testfile2', 'test2', callback);
+ }
+]);
+```
+
+It's possible to pass any number of additional arguments when calling the
+continuation:
+
+```js
+node> var fn = async.apply(sys.puts, 'one');
+node> fn('two', 'three');
+one
+two
+three
+```
+
+---------------------------------------
+
+
+### nextTick(callback)
+
+Calls the callback on a later loop around the event loop. In node.js this just
+calls process.nextTick, in the browser it falls back to setImmediate(callback)
+if available, otherwise setTimeout(callback, 0), which means other higher priority
+events may precede the execution of the callback.
+
+This is used internally for browser-compatibility purposes.
+
+__Arguments__
+
+* callback - The function to call on a later loop around the event loop.
+
+__Example__
+
+```js
+var call_order = [];
+async.nextTick(function(){
+ call_order.push('two');
+ // call_order now equals ['one','two']
+});
+call_order.push('one')
+```
+
+
+### times(n, callback)
+
+Calls the callback n times and accumulates results in the same manner
+you would use with async.map.
+
+__Arguments__
+
+* n - The number of times to run the function.
+* callback - The function to call n times.
+
+__Example__
+
+```js
+// Pretend this is some complicated async factory
+var createUser = function(id, callback) {
+ callback(null, {
+ id: 'user' + id
+ })
+}
+// generate 5 users
+async.times(5, function(n, next){
+ createUser(n, function(err, user) {
+ next(err, user)
+ })
+}, function(err, users) {
+ // we should now have 5 users
+});
+```
+
+
+### timesSeries(n, callback)
+
+The same as times only the iterator is applied to each item in the array in
+series. The next iterator is only called once the current one has completed
+processing. The results array will be in the same order as the original.
+
+
+## Utils
+
+
+### memoize(fn, [hasher])
+
+Caches the results of an async function. When creating a hash to store function
+results against, the callback is omitted from the hash and an optional hash
+function can be used.
+
+The cache of results is exposed as the `memo` property of the function returned
+by `memoize`.
+
+__Arguments__
+
+* fn - the function you to proxy and cache results from.
+* hasher - an optional function for generating a custom hash for storing
+ results, it has all the arguments applied to it apart from the callback, and
+ must be synchronous.
+
+__Example__
+
+```js
+var slow_fn = function (name, callback) {
+ // do something
+ callback(null, result);
+};
+var fn = async.memoize(slow_fn);
+
+// fn can now be used as if it were slow_fn
+fn('some name', function () {
+ // callback
+});
+```
+
+
+### unmemoize(fn)
+
+Undoes a memoized function, reverting it to the original, unmemoized
+form. Comes handy in tests.
+
+__Arguments__
+
+* fn - the memoized function
+
+
+### log(function, arguments)
+
+Logs the result of an async function to the console. Only works in node.js or
+in browsers that support console.log and console.error (such as FF and Chrome).
+If multiple arguments are returned from the async function, console.log is
+called on each argument in order.
+
+__Arguments__
+
+* function - The function you want to eventually apply all arguments to.
+* arguments... - Any number of arguments to apply to the function.
+
+__Example__
+
+```js
+var hello = function(name, callback){
+ setTimeout(function(){
+ callback(null, 'hello ' + name);
+ }, 1000);
+};
+```
+```js
+node> async.log(hello, 'world');
+'hello world'
+```
+
+---------------------------------------
+
+
+### dir(function, arguments)
+
+Logs the result of an async function to the console using console.dir to
+display the properties of the resulting object. Only works in node.js or
+in browsers that support console.dir and console.error (such as FF and Chrome).
+If multiple arguments are returned from the async function, console.dir is
+called on each argument in order.
+
+__Arguments__
+
+* function - The function you want to eventually apply all arguments to.
+* arguments... - Any number of arguments to apply to the function.
+
+__Example__
+
+```js
+var hello = function(name, callback){
+ setTimeout(function(){
+ callback(null, {hello: name});
+ }, 1000);
+};
+```
+```js
+node> async.dir(hello, 'world');
+{hello: 'world'}
+```
+
+---------------------------------------
+
+
+### noConflict()
+
+Changes the value of async back to its original value, returning a reference to the
+async object.
diff --git a/homework7/project_express/node_modules/async/component.json b/homework7/project_express/node_modules/async/component.json
new file mode 100644
index 0000000..bbb0115
--- /dev/null
+++ b/homework7/project_express/node_modules/async/component.json
@@ -0,0 +1,11 @@
+{
+ "name": "async",
+ "repo": "caolan/async",
+ "description": "Higher-order functions and common patterns for asynchronous code",
+ "version": "0.1.23",
+ "keywords": [],
+ "dependencies": {},
+ "development": {},
+ "main": "lib/async.js",
+ "scripts": [ "lib/async.js" ]
+}
diff --git a/homework7/project_express/node_modules/async/lib/async.js b/homework7/project_express/node_modules/async/lib/async.js
new file mode 100644
index 0000000..1eebb15
--- /dev/null
+++ b/homework7/project_express/node_modules/async/lib/async.js
@@ -0,0 +1,958 @@
+/*global setImmediate: false, setTimeout: false, console: false */
+(function () {
+
+ var async = {};
+
+ // global on the server, window in the browser
+ var root, previous_async;
+
+ root = this;
+ if (root != null) {
+ previous_async = root.async;
+ }
+
+ async.noConflict = function () {
+ root.async = previous_async;
+ return async;
+ };
+
+ function only_once(fn) {
+ var called = false;
+ return function() {
+ if (called) throw new Error("Callback was already called.");
+ called = true;
+ fn.apply(root, arguments);
+ }
+ }
+
+ //// cross-browser compatiblity functions ////
+
+ var _each = function (arr, iterator) {
+ if (arr.forEach) {
+ return arr.forEach(iterator);
+ }
+ for (var i = 0; i < arr.length; i += 1) {
+ iterator(arr[i], i, arr);
+ }
+ };
+
+ var _map = function (arr, iterator) {
+ if (arr.map) {
+ return arr.map(iterator);
+ }
+ var results = [];
+ _each(arr, function (x, i, a) {
+ results.push(iterator(x, i, a));
+ });
+ return results;
+ };
+
+ var _reduce = function (arr, iterator, memo) {
+ if (arr.reduce) {
+ return arr.reduce(iterator, memo);
+ }
+ _each(arr, function (x, i, a) {
+ memo = iterator(memo, x, i, a);
+ });
+ return memo;
+ };
+
+ var _keys = function (obj) {
+ if (Object.keys) {
+ return Object.keys(obj);
+ }
+ var keys = [];
+ for (var k in obj) {
+ if (obj.hasOwnProperty(k)) {
+ keys.push(k);
+ }
+ }
+ return keys;
+ };
+
+ //// exported async module functions ////
+
+ //// nextTick implementation with browser-compatible fallback ////
+ if (typeof process === 'undefined' || !(process.nextTick)) {
+ if (typeof setImmediate === 'function') {
+ async.nextTick = function (fn) {
+ // not a direct alias for IE10 compatibility
+ setImmediate(fn);
+ };
+ async.setImmediate = async.nextTick;
+ }
+ else {
+ async.nextTick = function (fn) {
+ setTimeout(fn, 0);
+ };
+ async.setImmediate = async.nextTick;
+ }
+ }
+ else {
+ async.nextTick = process.nextTick;
+ if (typeof setImmediate !== 'undefined') {
+ async.setImmediate = function (fn) {
+ // not a direct alias for IE10 compatibility
+ setImmediate(fn);
+ };
+ }
+ else {
+ async.setImmediate = async.nextTick;
+ }
+ }
+
+ async.each = function (arr, iterator, callback) {
+ callback = callback || function () {};
+ if (!arr.length) {
+ return callback();
+ }
+ var completed = 0;
+ _each(arr, function (x) {
+ iterator(x, only_once(function (err) {
+ if (err) {
+ callback(err);
+ callback = function () {};
+ }
+ else {
+ completed += 1;
+ if (completed >= arr.length) {
+ callback(null);
+ }
+ }
+ }));
+ });
+ };
+ async.forEach = async.each;
+
+ async.eachSeries = function (arr, iterator, callback) {
+ callback = callback || function () {};
+ if (!arr.length) {
+ return callback();
+ }
+ var completed = 0;
+ var iterate = function () {
+ iterator(arr[completed], function (err) {
+ if (err) {
+ callback(err);
+ callback = function () {};
+ }
+ else {
+ completed += 1;
+ if (completed >= arr.length) {
+ callback(null);
+ }
+ else {
+ iterate();
+ }
+ }
+ });
+ };
+ iterate();
+ };
+ async.forEachSeries = async.eachSeries;
+
+ async.eachLimit = function (arr, limit, iterator, callback) {
+ var fn = _eachLimit(limit);
+ fn.apply(null, [arr, iterator, callback]);
+ };
+ async.forEachLimit = async.eachLimit;
+
+ var _eachLimit = function (limit) {
+
+ return function (arr, iterator, callback) {
+ callback = callback || function () {};
+ if (!arr.length || limit <= 0) {
+ return callback();
+ }
+ var completed = 0;
+ var started = 0;
+ var running = 0;
+
+ (function replenish () {
+ if (completed >= arr.length) {
+ return callback();
+ }
+
+ while (running < limit && started < arr.length) {
+ started += 1;
+ running += 1;
+ iterator(arr[started - 1], function (err) {
+ if (err) {
+ callback(err);
+ callback = function () {};
+ }
+ else {
+ completed += 1;
+ running -= 1;
+ if (completed >= arr.length) {
+ callback();
+ }
+ else {
+ replenish();
+ }
+ }
+ });
+ }
+ })();
+ };
+ };
+
+
+ var doParallel = function (fn) {
+ return function () {
+ var args = Array.prototype.slice.call(arguments);
+ return fn.apply(null, [async.each].concat(args));
+ };
+ };
+ var doParallelLimit = function(limit, fn) {
+ return function () {
+ var args = Array.prototype.slice.call(arguments);
+ return fn.apply(null, [_eachLimit(limit)].concat(args));
+ };
+ };
+ var doSeries = function (fn) {
+ return function () {
+ var args = Array.prototype.slice.call(arguments);
+ return fn.apply(null, [async.eachSeries].concat(args));
+ };
+ };
+
+
+ var _asyncMap = function (eachfn, arr, iterator, callback) {
+ var results = [];
+ arr = _map(arr, function (x, i) {
+ return {index: i, value: x};
+ });
+ eachfn(arr, function (x, callback) {
+ iterator(x.value, function (err, v) {
+ results[x.index] = v;
+ callback(err);
+ });
+ }, function (err) {
+ callback(err, results);
+ });
+ };
+ async.map = doParallel(_asyncMap);
+ async.mapSeries = doSeries(_asyncMap);
+ async.mapLimit = function (arr, limit, iterator, callback) {
+ return _mapLimit(limit)(arr, iterator, callback);
+ };
+
+ var _mapLimit = function(limit) {
+ return doParallelLimit(limit, _asyncMap);
+ };
+
+ // reduce only has a series version, as doing reduce in parallel won't
+ // work in many situations.
+ async.reduce = function (arr, memo, iterator, callback) {
+ async.eachSeries(arr, function (x, callback) {
+ iterator(memo, x, function (err, v) {
+ memo = v;
+ callback(err);
+ });
+ }, function (err) {
+ callback(err, memo);
+ });
+ };
+ // inject alias
+ async.inject = async.reduce;
+ // foldl alias
+ async.foldl = async.reduce;
+
+ async.reduceRight = function (arr, memo, iterator, callback) {
+ var reversed = _map(arr, function (x) {
+ return x;
+ }).reverse();
+ async.reduce(reversed, memo, iterator, callback);
+ };
+ // foldr alias
+ async.foldr = async.reduceRight;
+
+ var _filter = function (eachfn, arr, iterator, callback) {
+ var results = [];
+ arr = _map(arr, function (x, i) {
+ return {index: i, value: x};
+ });
+ eachfn(arr, function (x, callback) {
+ iterator(x.value, function (v) {
+ if (v) {
+ results.push(x);
+ }
+ callback();
+ });
+ }, function (err) {
+ callback(_map(results.sort(function (a, b) {
+ return a.index - b.index;
+ }), function (x) {
+ return x.value;
+ }));
+ });
+ };
+ async.filter = doParallel(_filter);
+ async.filterSeries = doSeries(_filter);
+ // select alias
+ async.select = async.filter;
+ async.selectSeries = async.filterSeries;
+
+ var _reject = function (eachfn, arr, iterator, callback) {
+ var results = [];
+ arr = _map(arr, function (x, i) {
+ return {index: i, value: x};
+ });
+ eachfn(arr, function (x, callback) {
+ iterator(x.value, function (v) {
+ if (!v) {
+ results.push(x);
+ }
+ callback();
+ });
+ }, function (err) {
+ callback(_map(results.sort(function (a, b) {
+ return a.index - b.index;
+ }), function (x) {
+ return x.value;
+ }));
+ });
+ };
+ async.reject = doParallel(_reject);
+ async.rejectSeries = doSeries(_reject);
+
+ var _detect = function (eachfn, arr, iterator, main_callback) {
+ eachfn(arr, function (x, callback) {
+ iterator(x, function (result) {
+ if (result) {
+ main_callback(x);
+ main_callback = function () {};
+ }
+ else {
+ callback();
+ }
+ });
+ }, function (err) {
+ main_callback();
+ });
+ };
+ async.detect = doParallel(_detect);
+ async.detectSeries = doSeries(_detect);
+
+ async.some = function (arr, iterator, main_callback) {
+ async.each(arr, function (x, callback) {
+ iterator(x, function (v) {
+ if (v) {
+ main_callback(true);
+ main_callback = function () {};
+ }
+ callback();
+ });
+ }, function (err) {
+ main_callback(false);
+ });
+ };
+ // any alias
+ async.any = async.some;
+
+ async.every = function (arr, iterator, main_callback) {
+ async.each(arr, function (x, callback) {
+ iterator(x, function (v) {
+ if (!v) {
+ main_callback(false);
+ main_callback = function () {};
+ }
+ callback();
+ });
+ }, function (err) {
+ main_callback(true);
+ });
+ };
+ // all alias
+ async.all = async.every;
+
+ async.sortBy = function (arr, iterator, callback) {
+ async.map(arr, function (x, callback) {
+ iterator(x, function (err, criteria) {
+ if (err) {
+ callback(err);
+ }
+ else {
+ callback(null, {value: x, criteria: criteria});
+ }
+ });
+ }, function (err, results) {
+ if (err) {
+ return callback(err);
+ }
+ else {
+ var fn = function (left, right) {
+ var a = left.criteria, b = right.criteria;
+ return a < b ? -1 : a > b ? 1 : 0;
+ };
+ callback(null, _map(results.sort(fn), function (x) {
+ return x.value;
+ }));
+ }
+ });
+ };
+
+ async.auto = function (tasks, callback) {
+ callback = callback || function () {};
+ var keys = _keys(tasks);
+ if (!keys.length) {
+ return callback(null);
+ }
+
+ var results = {};
+
+ var listeners = [];
+ var addListener = function (fn) {
+ listeners.unshift(fn);
+ };
+ var removeListener = function (fn) {
+ for (var i = 0; i < listeners.length; i += 1) {
+ if (listeners[i] === fn) {
+ listeners.splice(i, 1);
+ return;
+ }
+ }
+ };
+ var taskComplete = function () {
+ _each(listeners.slice(0), function (fn) {
+ fn();
+ });
+ };
+
+ addListener(function () {
+ if (_keys(results).length === keys.length) {
+ callback(null, results);
+ callback = function () {};
+ }
+ });
+
+ _each(keys, function (k) {
+ var task = (tasks[k] instanceof Function) ? [tasks[k]]: tasks[k];
+ var taskCallback = function (err) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ if (args.length <= 1) {
+ args = args[0];
+ }
+ if (err) {
+ var safeResults = {};
+ _each(_keys(results), function(rkey) {
+ safeResults[rkey] = results[rkey];
+ });
+ safeResults[k] = args;
+ callback(err, safeResults);
+ // stop subsequent errors hitting callback multiple times
+ callback = function () {};
+ }
+ else {
+ results[k] = args;
+ async.setImmediate(taskComplete);
+ }
+ };
+ var requires = task.slice(0, Math.abs(task.length - 1)) || [];
+ var ready = function () {
+ return _reduce(requires, function (a, x) {
+ return (a && results.hasOwnProperty(x));
+ }, true) && !results.hasOwnProperty(k);
+ };
+ if (ready()) {
+ task[task.length - 1](taskCallback, results);
+ }
+ else {
+ var listener = function () {
+ if (ready()) {
+ removeListener(listener);
+ task[task.length - 1](taskCallback, results);
+ }
+ };
+ addListener(listener);
+ }
+ });
+ };
+
+ async.waterfall = function (tasks, callback) {
+ callback = callback || function () {};
+ if (tasks.constructor !== Array) {
+ var err = new Error('First argument to waterfall must be an array of functions');
+ return callback(err);
+ }
+ if (!tasks.length) {
+ return callback();
+ }
+ var wrapIterator = function (iterator) {
+ return function (err) {
+ if (err) {
+ callback.apply(null, arguments);
+ callback = function () {};
+ }
+ else {
+ var args = Array.prototype.slice.call(arguments, 1);
+ var next = iterator.next();
+ if (next) {
+ args.push(wrapIterator(next));
+ }
+ else {
+ args.push(callback);
+ }
+ async.setImmediate(function () {
+ iterator.apply(null, args);
+ });
+ }
+ };
+ };
+ wrapIterator(async.iterator(tasks))();
+ };
+
+ var _parallel = function(eachfn, tasks, callback) {
+ callback = callback || function () {};
+ if (tasks.constructor === Array) {
+ eachfn.map(tasks, function (fn, callback) {
+ if (fn) {
+ fn(function (err) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ if (args.length <= 1) {
+ args = args[0];
+ }
+ callback.call(null, err, args);
+ });
+ }
+ }, callback);
+ }
+ else {
+ var results = {};
+ eachfn.each(_keys(tasks), function (k, callback) {
+ tasks[k](function (err) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ if (args.length <= 1) {
+ args = args[0];
+ }
+ results[k] = args;
+ callback(err);
+ });
+ }, function (err) {
+ callback(err, results);
+ });
+ }
+ };
+
+ async.parallel = function (tasks, callback) {
+ _parallel({ map: async.map, each: async.each }, tasks, callback);
+ };
+
+ async.parallelLimit = function(tasks, limit, callback) {
+ _parallel({ map: _mapLimit(limit), each: _eachLimit(limit) }, tasks, callback);
+ };
+
+ async.series = function (tasks, callback) {
+ callback = callback || function () {};
+ if (tasks.constructor === Array) {
+ async.mapSeries(tasks, function (fn, callback) {
+ if (fn) {
+ fn(function (err) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ if (args.length <= 1) {
+ args = args[0];
+ }
+ callback.call(null, err, args);
+ });
+ }
+ }, callback);
+ }
+ else {
+ var results = {};
+ async.eachSeries(_keys(tasks), function (k, callback) {
+ tasks[k](function (err) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ if (args.length <= 1) {
+ args = args[0];
+ }
+ results[k] = args;
+ callback(err);
+ });
+ }, function (err) {
+ callback(err, results);
+ });
+ }
+ };
+
+ async.iterator = function (tasks) {
+ var makeCallback = function (index) {
+ var fn = function () {
+ if (tasks.length) {
+ tasks[index].apply(null, arguments);
+ }
+ return fn.next();
+ };
+ fn.next = function () {
+ return (index < tasks.length - 1) ? makeCallback(index + 1): null;
+ };
+ return fn;
+ };
+ return makeCallback(0);
+ };
+
+ async.apply = function (fn) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ return function () {
+ return fn.apply(
+ null, args.concat(Array.prototype.slice.call(arguments))
+ );
+ };
+ };
+
+ var _concat = function (eachfn, arr, fn, callback) {
+ var r = [];
+ eachfn(arr, function (x, cb) {
+ fn(x, function (err, y) {
+ r = r.concat(y || []);
+ cb(err);
+ });
+ }, function (err) {
+ callback(err, r);
+ });
+ };
+ async.concat = doParallel(_concat);
+ async.concatSeries = doSeries(_concat);
+
+ async.whilst = function (test, iterator, callback) {
+ if (test()) {
+ iterator(function (err) {
+ if (err) {
+ return callback(err);
+ }
+ async.whilst(test, iterator, callback);
+ });
+ }
+ else {
+ callback();
+ }
+ };
+
+ async.doWhilst = function (iterator, test, callback) {
+ iterator(function (err) {
+ if (err) {
+ return callback(err);
+ }
+ if (test()) {
+ async.doWhilst(iterator, test, callback);
+ }
+ else {
+ callback();
+ }
+ });
+ };
+
+ async.until = function (test, iterator, callback) {
+ if (!test()) {
+ iterator(function (err) {
+ if (err) {
+ return callback(err);
+ }
+ async.until(test, iterator, callback);
+ });
+ }
+ else {
+ callback();
+ }
+ };
+
+ async.doUntil = function (iterator, test, callback) {
+ iterator(function (err) {
+ if (err) {
+ return callback(err);
+ }
+ if (!test()) {
+ async.doUntil(iterator, test, callback);
+ }
+ else {
+ callback();
+ }
+ });
+ };
+
+ async.queue = function (worker, concurrency) {
+ if (concurrency === undefined) {
+ concurrency = 1;
+ }
+ function _insert(q, data, pos, callback) {
+ if(data.constructor !== Array) {
+ data = [data];
+ }
+ _each(data, function(task) {
+ var item = {
+ data: task,
+ callback: typeof callback === 'function' ? callback : null
+ };
+
+ if (pos) {
+ q.tasks.unshift(item);
+ } else {
+ q.tasks.push(item);
+ }
+
+ if (q.saturated && q.tasks.length === concurrency) {
+ q.saturated();
+ }
+ async.setImmediate(q.process);
+ });
+ }
+
+ var workers = 0;
+ var q = {
+ tasks: [],
+ concurrency: concurrency,
+ saturated: null,
+ empty: null,
+ drain: null,
+ push: function (data, callback) {
+ _insert(q, data, false, callback);
+ },
+ unshift: function (data, callback) {
+ _insert(q, data, true, callback);
+ },
+ process: function () {
+ if (workers < q.concurrency && q.tasks.length) {
+ var task = q.tasks.shift();
+ if (q.empty && q.tasks.length === 0) {
+ q.empty();
+ }
+ workers += 1;
+ var next = function () {
+ workers -= 1;
+ if (task.callback) {
+ task.callback.apply(task, arguments);
+ }
+ if (q.drain && q.tasks.length + workers === 0) {
+ q.drain();
+ }
+ q.process();
+ };
+ var cb = only_once(next);
+ worker(task.data, cb);
+ }
+ },
+ length: function () {
+ return q.tasks.length;
+ },
+ running: function () {
+ return workers;
+ }
+ };
+ return q;
+ };
+
+ async.cargo = function (worker, payload) {
+ var working = false,
+ tasks = [];
+
+ var cargo = {
+ tasks: tasks,
+ payload: payload,
+ saturated: null,
+ empty: null,
+ drain: null,
+ push: function (data, callback) {
+ if(data.constructor !== Array) {
+ data = [data];
+ }
+ _each(data, function(task) {
+ tasks.push({
+ data: task,
+ callback: typeof callback === 'function' ? callback : null
+ });
+ if (cargo.saturated && tasks.length === payload) {
+ cargo.saturated();
+ }
+ });
+ async.setImmediate(cargo.process);
+ },
+ process: function process() {
+ if (working) return;
+ if (tasks.length === 0) {
+ if(cargo.drain) cargo.drain();
+ return;
+ }
+
+ var ts = typeof payload === 'number'
+ ? tasks.splice(0, payload)
+ : tasks.splice(0);
+
+ var ds = _map(ts, function (task) {
+ return task.data;
+ });
+
+ if(cargo.empty) cargo.empty();
+ working = true;
+ worker(ds, function () {
+ working = false;
+
+ var args = arguments;
+ _each(ts, function (data) {
+ if (data.callback) {
+ data.callback.apply(null, args);
+ }
+ });
+
+ process();
+ });
+ },
+ length: function () {
+ return tasks.length;
+ },
+ running: function () {
+ return working;
+ }
+ };
+ return cargo;
+ };
+
+ var _console_fn = function (name) {
+ return function (fn) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ fn.apply(null, args.concat([function (err) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ if (typeof console !== 'undefined') {
+ if (err) {
+ if (console.error) {
+ console.error(err);
+ }
+ }
+ else if (console[name]) {
+ _each(args, function (x) {
+ console[name](x);
+ });
+ }
+ }
+ }]));
+ };
+ };
+ async.log = _console_fn('log');
+ async.dir = _console_fn('dir');
+ /*async.info = _console_fn('info');
+ async.warn = _console_fn('warn');
+ async.error = _console_fn('error');*/
+
+ async.memoize = function (fn, hasher) {
+ var memo = {};
+ var queues = {};
+ hasher = hasher || function (x) {
+ return x;
+ };
+ var memoized = function () {
+ var args = Array.prototype.slice.call(arguments);
+ var callback = args.pop();
+ var key = hasher.apply(null, args);
+ if (key in memo) {
+ callback.apply(null, memo[key]);
+ }
+ else if (key in queues) {
+ queues[key].push(callback);
+ }
+ else {
+ queues[key] = [callback];
+ fn.apply(null, args.concat([function () {
+ memo[key] = arguments;
+ var q = queues[key];
+ delete queues[key];
+ for (var i = 0, l = q.length; i < l; i++) {
+ q[i].apply(null, arguments);
+ }
+ }]));
+ }
+ };
+ memoized.memo = memo;
+ memoized.unmemoized = fn;
+ return memoized;
+ };
+
+ async.unmemoize = function (fn) {
+ return function () {
+ return (fn.unmemoized || fn).apply(null, arguments);
+ };
+ };
+
+ async.times = function (count, iterator, callback) {
+ var counter = [];
+ for (var i = 0; i < count; i++) {
+ counter.push(i);
+ }
+ return async.map(counter, iterator, callback);
+ };
+
+ async.timesSeries = function (count, iterator, callback) {
+ var counter = [];
+ for (var i = 0; i < count; i++) {
+ counter.push(i);
+ }
+ return async.mapSeries(counter, iterator, callback);
+ };
+
+ async.compose = function (/* functions... */) {
+ var fns = Array.prototype.reverse.call(arguments);
+ return function () {
+ var that = this;
+ var args = Array.prototype.slice.call(arguments);
+ var callback = args.pop();
+ async.reduce(fns, args, function (newargs, fn, cb) {
+ fn.apply(that, newargs.concat([function () {
+ var err = arguments[0];
+ var nextargs = Array.prototype.slice.call(arguments, 1);
+ cb(err, nextargs);
+ }]))
+ },
+ function (err, results) {
+ callback.apply(that, [err].concat(results));
+ });
+ };
+ };
+
+ var _applyEach = function (eachfn, fns /*args...*/) {
+ var go = function () {
+ var that = this;
+ var args = Array.prototype.slice.call(arguments);
+ var callback = args.pop();
+ return eachfn(fns, function (fn, cb) {
+ fn.apply(that, args.concat([cb]));
+ },
+ callback);
+ };
+ if (arguments.length > 2) {
+ var args = Array.prototype.slice.call(arguments, 2);
+ return go.apply(this, args);
+ }
+ else {
+ return go;
+ }
+ };
+ async.applyEach = doParallel(_applyEach);
+ async.applyEachSeries = doSeries(_applyEach);
+
+ async.forever = function (fn, callback) {
+ function next(err) {
+ if (err) {
+ if (callback) {
+ return callback(err);
+ }
+ throw err;
+ }
+ fn(next);
+ }
+ next();
+ };
+
+ // AMD / RequireJS
+ if (typeof define !== 'undefined' && define.amd) {
+ define([], function () {
+ return async;
+ });
+ }
+ // Node.js
+ else if (typeof module !== 'undefined' && module.exports) {
+ module.exports = async;
+ }
+ // included directly via
+
+This is like calling require('client') from inside ./example.
+[Read more on node's require path resolution](http://nodejs.org/api/modules.html)
+
+Compile
+=======
+(You'll want to do this before you deploy to production)
+
+ require compile ./example/client.js > client.min.js
+
+Use programmatically
+====================
+In node:
+
+ require('require/server').listen(1234)
+
+or mount it on an http server you're already running
+
+ var server = http.createServer(function(req, res) { })
+ require('require/server').mount(server)
+ server.listen(8080, 'localhost')
+
+or, as connect middleware
+
+ connect.createServer(
+ connect.static(__dirname + '/example'),
+ require('require/server').connect()
+ )
+
+Compile programmatically:
+
+ var compiler = require('require/compiler')
+ console.log(compiler.compile('./example/client.js'))
+ console.log(compiler.compileCode('require("./example/client")'))
+
+The compiler supports all the options of https://github.com/mishoo/UglifyJS, e.g.
+
+ compiler.compile('./example/client.js', { beautify:true, ascii_only:true })
diff --git a/homework7/project_express/node_modules/require/bin/require-command.js b/homework7/project_express/node_modules/require/bin/require-command.js
new file mode 100644
index 0000000..6211b0b
--- /dev/null
+++ b/homework7/project_express/node_modules/require/bin/require-command.js
@@ -0,0 +1,69 @@
+#!/usr/bin/env node
+
+var path = require('path'),
+ server = require('../server'),
+ compiler = require('../compiler')
+
+var opts = {
+ port: 1234,
+ host: 'localhost',
+ command: null,
+ path: null
+}
+
+var args = [].slice.call(process.argv, 2)
+
+opts.command = args.shift()
+opts.path = path.resolve(args.shift())
+
+while (args.length) {
+ var arg = args.shift()
+ switch(arg) {
+ case '--port':
+ opts.port = args.shift()
+ break
+ case '--host':
+ opts.host = args.shift()
+ break
+ case '--root':
+ opts.root = args.shift()
+ break
+ case '--usePagePort':
+ if (args[0] && args[0][0] != '-') {
+ console.log('Unexpected value for --usePagePort flag', args[0])
+ process.exit(1)
+ }
+ opts.usePagePort = true
+ break
+ default:
+ console.log('Unknown option', arg)
+ process.exit(1)
+ break
+ }
+}
+
+switch (opts.command) {
+ case 'serve':
+ if (!opts.path) {
+ console.log('Specify a path to serve from, e.g. require serve ./example')
+ process.exit(1)
+ }
+ server.listen(opts)
+ console.log('serving from', opts.path, 'on', 'http://'+opts.host+':'+opts.port)
+ break
+ case 'compile':
+ if (!opts.path) {
+ console.log('Specify a single file to compile, e.g. require compile ./path/to/file.js')
+ process.exit(1)
+ }
+ console.log(compiler.compile(opts.path))
+ break
+ default:
+ if (opts.command) {
+ console.log('Unknown command', '"' + opts.command + '".', 'Try "require serve" or "require compile"')
+ } else {
+ console.log('You need to give a command, e.g. "require serve" or "require compile"')
+ }
+ process.exit(1)
+}
+
diff --git a/homework7/project_express/node_modules/require/compiler.js b/homework7/project_express/node_modules/require/compiler.js
new file mode 100644
index 0000000..ff30f51
--- /dev/null
+++ b/homework7/project_express/node_modules/require/compiler.js
@@ -0,0 +1,162 @@
+var fs = require('fs')
+var path = require('path')
+var extend = require('std/extend')
+var each = require('std/each')
+var getCode = require('./lib/getCode')
+var resolve = require('./lib/resolve')
+var getRequireStatements = require('./lib/getRequireStatements')
+
+module.exports = {
+ compile: compileFile,
+ compileHTML: compileHTMLFile,
+ compileCode: compileCode
+}
+
+/* api
+ *****/
+function compileFile(filePath, opts) {
+ filePath = path.resolve(filePath)
+ opts = extend(opts, { basePath:path.dirname(filePath), toplevel:true })
+ var code = getCode(filePath)
+ return _compile(code, opts, filePath)
+}
+
+function compileCode(code, opts) {
+ opts = extend(opts, { basePath:process.cwd(), toplevel:true })
+ return _compile(code, opts, '')
+}
+
+function compileHTMLFile(filePath, opts) {
+ var html = fs.readFileSync(filePath).toString()
+ while (match = html.match(/')
+ html = html.replace(BACKREFERENCE_WORKAROUND, '\$\&')
+ }
+ return html
+}
+
+
+var _compile = function(code, opts, mainModule) {
+ var code = 'var __require__ = {}, require=function(){}\n' + _compileModule(code, opts.basePath, mainModule)
+ if (opts.minify === false) { return code } // TODO use uglifyjs' beautifier?
+
+ var UglifyJS = require('uglify-js')
+ var result = UglifyJS.minify(code, {
+ fromString:true,
+ mangle:true,
+ output: {
+ // http://lisperator.net/uglifyjs/codegen
+ indent_start : 0, // start indentation on every line (only when `beautify`)
+ indent_level : 4, // indentation level (only when `beautify`)
+ quote_keys : false, // quote all keys in object literals?
+ space_colon : true, // add a space after colon signs?
+ ascii_only : false, // output ASCII-safe? (encodes Unicode characters as ASCII)
+ inline_script : false, // escape "
+
+
+ test
+
+
+
+
diff --git a/homework7/project_express/node_modules/require/example/package.json b/homework7/project_express/node_modules/require/example/package.json
new file mode 100644
index 0000000..4a43812
--- /dev/null
+++ b/homework7/project_express/node_modules/require/example/package.json
@@ -0,0 +1,16 @@
+{
+ "author": "",
+ "name": "testApp",
+ "version": "0.0.0",
+ "repository": {
+ "url": ""
+ },
+ "directories": {
+ "lib": "."
+ },
+ "engines": {
+ "node": "*"
+ },
+ "dependencies": {},
+ "devDependencies": {}
+}
\ No newline at end of file
diff --git a/homework7/project_express/node_modules/require/example/raphael_circle.html b/homework7/project_express/node_modules/require/example/raphael_circle.html
new file mode 100644
index 0000000..86e0c30
--- /dev/null
+++ b/homework7/project_express/node_modules/require/example/raphael_circle.html
@@ -0,0 +1,4 @@
+
+
+
+
diff --git a/homework7/project_express/node_modules/require/example/raphael_circle.js b/homework7/project_express/node_modules/require/example/raphael_circle.js
new file mode 100644
index 0000000..0c6e1c6
--- /dev/null
+++ b/homework7/project_express/node_modules/require/example/raphael_circle.js
@@ -0,0 +1,5 @@
+var raphael = require('raphael'),
+ canvas = document.body.appendChild(document.createElement('div')),
+ paper = raphael(canvas)
+
+paper.circle(50, 50, 40)
diff --git a/homework7/project_express/node_modules/require/example/server.js b/homework7/project_express/node_modules/require/example/server.js
new file mode 100644
index 0000000..0b8adbf
--- /dev/null
+++ b/homework7/project_express/node_modules/require/example/server.js
@@ -0,0 +1,20 @@
+var http = require('http'),
+ fs = require('fs'),
+ dependency = require('./shared/dependency'),
+ requireServer = require('../server') // this would be require('require/server') in most applications
+
+var base = __dirname + '/',
+ root = 'require'
+var server = http.createServer(function(req, res) {
+ if (requireServer.isRequireRequest(req)) { return }
+ fs.readFile(base + (req.url.substr(1) || 'index.html'), function(err, content) {
+ if (err) { return res.end(err.stack) }
+ res.end(content)
+ })
+})
+
+requireServer.mount(server, __dirname)
+
+server.listen(8080)
+
+console.log('shared dependency:', dependency)
diff --git a/homework7/project_express/node_modules/require/example/shared/dependency.js b/homework7/project_express/node_modules/require/example/shared/dependency.js
new file mode 100644
index 0000000..8cdb2ae
--- /dev/null
+++ b/homework7/project_express/node_modules/require/example/shared/dependency.js
@@ -0,0 +1,4 @@
+module.exports = {
+ foo: 'bar',
+ cat: 'qwe'
+}
diff --git a/homework7/project_express/node_modules/require/lib/getCode.js b/homework7/project_express/node_modules/require/lib/getCode.js
new file mode 100644
index 0000000..5febcea
--- /dev/null
+++ b/homework7/project_express/node_modules/require/lib/getCode.js
@@ -0,0 +1,6 @@
+var fs = require('fs')
+
+module.exports = function readCode(filePath) {
+ if (!filePath.match(/\.js$/)) { filePath += '.js' }
+ return fs.readFileSync(filePath).toString()
+}
\ No newline at end of file
diff --git a/homework7/project_express/node_modules/require/lib/getDependencyLevels.js b/homework7/project_express/node_modules/require/lib/getDependencyLevels.js
new file mode 100644
index 0000000..af92e43
--- /dev/null
+++ b/homework7/project_express/node_modules/require/lib/getDependencyLevels.js
@@ -0,0 +1,59 @@
+var each = require('std/each')
+var getCode = require('./getCode')
+var getRequireStatements = require('./getRequireStatements')
+var resolve = require('./resolve')
+
+module.exports = getDependencyLevels
+
+function getDependencyLevels(mainModulePath) {
+ var leaves = []
+ var root = []
+ root.isRoot = true
+ root.path = mainModulePath
+ _buildDependencyTreeOf(root)
+
+ var levels = []
+ var seenPaths = {}
+ _buildLevel(leaves)
+
+ return levels
+
+ // builds full dependency tree, noting every dependency of every node
+ function _buildDependencyTreeOf(node) {
+ var requireStatements = getRequireStatements(getCode(node.path))
+ if (requireStatements.length == 0) {
+ return leaves.push(node)
+ }
+ each(requireStatements, function(requireStatement) {
+ var childNode = []
+ childNode.path = resolve.requireStatement(requireStatement, node.path)
+ childNode.parent = node
+ node.push(childNode)
+ _buildDependencyTreeOf(childNode)
+ })
+ node.waitingForNumChildren = node.length
+ }
+
+ // builds a list of dependency levels, where nodes in each level is dependent only on nodes in levels below it
+ // the dependency levels allow for parallel loading of every file in any given level
+ function _buildLevel(nodes) {
+ var level = []
+ levels.push(level)
+ var parents = []
+ each(nodes, function(node) {
+ if (!seenPaths[node.path]) {
+ seenPaths[node.path] = true
+ level.push(node.path)
+ }
+ if (node.isRoot) { return }
+
+ node.parent.waitingForNumChildren -= 1
+
+ if (node.parent.waitingForNumChildren == 0) {
+ parents.push(node.parent)
+ }
+ })
+ if (!parents.length) { return }
+ _buildLevel(parents)
+ }
+}
diff --git a/homework7/project_express/node_modules/require/lib/getRequireStatements.js b/homework7/project_express/node_modules/require/lib/getRequireStatements.js
new file mode 100644
index 0000000..ecc9470
--- /dev/null
+++ b/homework7/project_express/node_modules/require/lib/getRequireStatements.js
@@ -0,0 +1,6 @@
+module.exports = getRequireStatements
+
+var _globalRequireRegex = /require\s*\(['"][\w\/\.-]*['"]\)/g
+function getRequireStatements(code) {
+ return code.match(_globalRequireRegex) || []
+}
diff --git a/homework7/project_express/node_modules/require/lib/resolve.js b/homework7/project_express/node_modules/require/lib/resolve.js
new file mode 100644
index 0000000..bbeaafc
--- /dev/null
+++ b/homework7/project_express/node_modules/require/lib/resolve.js
@@ -0,0 +1,72 @@
+var path = require('path')
+var fs = require('fs')
+var existsSync = fs.existsSync || path.existsSync
+
+var _nodePaths = (process.env.NODE_PATH ? process.env.NODE_PATH.split(':') : [])
+_nodePaths.push(process.cwd())
+
+module.exports = {
+ path: resolvePath,
+ _nodePaths:_nodePaths,
+ requireStatement: resolveRequireStatement
+}
+
+function resolvePath(searchPath, pathBase) {
+ if (searchPath[0] == '.') {
+ // relative path, e.g. require("./foo")
+ return _findModuleMain(path.resolve(pathBase, searchPath))
+ }
+
+ var searchParts = searchPath.split('/')
+ var componentName = searchParts[searchParts.length - 1]
+ var name = searchParts.shift()
+ var rest = searchParts.join('/')
+
+ // npm-style path, e.g. require("npm").
+ // Climb parent directories in search for "node_modules"
+ var modulePath = _findModuleMain(path.resolve(pathBase, 'node_modules', searchPath))
+ if (modulePath) { return modulePath }
+
+ if (pathBase != '/') {
+ // not yet at the root - keep climbing!
+ return resolvePath(searchPath, path.resolve(pathBase, '..'))
+ }
+
+ return ''
+}
+
+var _pathnameGroupingRegex = /require\s*\(['"]([\w\/\.-]*)['"]\)/
+function resolveRequireStatement(requireStmnt, currentPath) {
+ var rawPath = requireStmnt.match(_pathnameGroupingRegex)[1]
+ var resolvedPath = resolvePath(rawPath, path.dirname(currentPath))
+
+ if (!resolvedPath && rawPath[0] != '.' && rawPath[0] != '/') {
+ for (var i=0; i<_nodePaths.length; i++) {
+ resolvedPath = _findModuleMain(path.resolve(_nodePaths[i], rawPath))
+ if (resolvedPath) { break }
+ }
+ }
+
+ if (!resolvedPath) { throw 'Could not resolve "'+rawPath+'" in "'+currentPath+'"' }
+ return resolvedPath
+}
+
+function _findModuleMain(absModulePath, tryFileName) {
+ var foundPath = ''
+ function attempt(aPath) {
+ if (foundPath) { return }
+ if (existsSync(aPath)) { foundPath = aPath }
+ }
+ attempt(absModulePath + '.js')
+ try {
+ var package = JSON.parse(fs.readFileSync(absModulePath + '/package.json').toString())
+ attempt(path.resolve(absModulePath, package.main+'.js'))
+ attempt(path.resolve(absModulePath, package.main))
+ } catch(e) {}
+ attempt(absModulePath + '/index.js')
+
+ if (tryFileName) { attempt(absModulePath + '/' + tryFileName + '.js') }
+ return foundPath
+}
+
+
diff --git a/homework7/project_express/node_modules/require/package.json b/homework7/project_express/node_modules/require/package.json
new file mode 100644
index 0000000..52b8dfb
--- /dev/null
+++ b/homework7/project_express/node_modules/require/package.json
@@ -0,0 +1,23 @@
+{
+ "name": "require",
+ "description": "javascript module management! brings node's require statement to the browser",
+ "version": "2.4.20",
+ "homepage": "https://github.com/marcuswestin/require",
+ "main": "./require",
+ "bin": "./bin/require-command.js",
+ "engines": {
+ "node": "*",
+ "browsers": "*"
+ },
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/marcuswestin/require.git"
+ },
+ "author": "Marcus Westin (http://marcuswest.in)",
+ "dependencies": {
+ "uglify-js": "2.3.0",
+ "std": "0.1.40"
+ },
+ "devDependencies": {},
+ "directories": {}
+}
diff --git a/homework7/project_express/node_modules/require/server.js b/homework7/project_express/node_modules/require/server.js
new file mode 100644
index 0000000..9f34d1c
--- /dev/null
+++ b/homework7/project_express/node_modules/require/server.js
@@ -0,0 +1,185 @@
+var http = require('http')
+var fs = require('fs')
+var path = require('path')
+var extend = require('std/extend')
+var isObject = require('std/isObject')
+var map = require('std/map')
+var each = require('std/each')
+var getDependencyLevels = require('./lib/getDependencyLevels')
+var getRequireStatements = require('./lib/getRequireStatements')
+var getCode = require('./lib/getCode')
+var resolve = require('./lib/resolve')
+
+module.exports = {
+ listen: listen,
+ mount: mount,
+ connect: connect,
+ isRequireRequest: isRequireRequest,
+ handleRequest: handleRequest
+}
+
+function listen(portOrOpts) {
+ var _opts = (isObject(portOrOpts) ? portOrOpts : { port:portOrOpts || 1234 })
+ opts.handleAllRequests = true
+ mount(http.createServer(), _opts).listen(opts.port, opts.host)
+}
+
+function mount(server, _opts) {
+ setOpts(_opts)
+ return server.on('request', _checkRequest)
+}
+
+function connect(opts) {
+ setOpts(opts)
+ return _checkRequest
+}
+
+function _checkRequest(req, res, next) {
+ if (isRequireRequest(req) || opts.handleAllRequests) {
+ handleRequest(req, res)
+ } else {
+ next && next()
+ }
+}
+
+function isRequireRequest(req) {
+ return req.url.substr(1, opts.root.length) == opts.root
+}
+
+/* options
+ *********/
+var opts = {
+ path: process.cwd(),
+ root: 'require',
+ port: null,
+ host: null
+}
+function setOpts(_opts) {
+ opts = extend(_opts, opts)
+ if (opts.path) {
+ resolve._nodePaths.push(opts.path)
+ }
+}
+function getUrlBase() {
+ var basePort = (!opts.usePagePort && opts.port)
+ if (opts.host && basePort) {
+ return '//' + opts.host + ':' + basePort + '/' + opts.root + '/'
+ } else {
+ return '/' + opts.root + '/'
+ }
+}
+
+/* request handlers
+ ******************/
+function handleRequest(req, res) {
+ var reqPath = _normalizeURL(req.url).substr(opts.root.length + 2)
+ if (reqPath.match(/\.js$/)) {
+ _handleModuleRequest(reqPath, res)
+ } else {
+ _handleMainModuleRequest(reqPath, req, res)
+ }
+
+ function _normalizeURL(url) {
+ return url.replace(/\?.*/g, '').replace(/\/js$/, '.js')
+ }
+}
+
+function _handleMainModuleRequest(reqPath, req, res) {
+ var mainModulePath = resolve.path('./' + reqPath, opts.path)
+ if (!mainModulePath) { return _sendError(res, 'Could not find module "'+reqPath+'" from "'+opts.path+'"') }
+
+ try { var dependencyTree = getDependencyLevels(mainModulePath) }
+ catch(err) { return _sendError(res, 'in getDependencyLevels: ' + (err.message || err)) }
+
+ var userAgent = req.headers['user-agent']
+ var isMobile = userAgent.match('iPad') || userAgent.match('iPod') || userAgent.match('iPhone') || userAgent.match('Android')
+
+ var response = isMobile ? _getMobilePayload() : _getNormalPayload()
+
+ res.writeHead(200, { 'Cache-Control':'no-cache', 'Expires':'Fri, 31 Dec 1998 12:00:00 GMT', 'Content-Length':response.length, 'Content-Type':'text/javascript' })
+ res.end(response)
+
+ function _getMobilePayload() {
+ var result = ['__require__={loadNextModule:function(){},onModuleLoaded:function(){}}']
+ each(dependencyTree, function(level) {
+ each(level, function(dependency) {
+ result.push(';(function(){ '+_getModuleCode(res, dependency)+' }());')
+ })
+ })
+ return new Buffer(result.join('\n'))
+ }
+
+ function _getNormalPayload() {
+ var paramsString = map([getUrlBase(), dependencyTree], JSON.stringify).join(',\n\t\t')
+ return new Buffer('\t('+clientBootstrapFn.toString()+')(\n\t\t'+paramsString+'\n\t)')
+
+ function clientBootstrapFn(urlBase, levels) {
+ // This function gets sent to the client as toString
+ __require__ = {
+ loadNextLevel: loadNextLevel,
+ onModuleLoaded: onModuleLoaded
+ }
+
+ var currentLevel = null
+ loadNextLevel()
+
+ function loadNextLevel() {
+ if (!levels.length) { return } // all done!
+ currentLevel = levels.shift()
+ var head = document.getElementsByTagName('head')[0]
+ for (var i=0; i
+
+* `array` {Array}
+
+Allocates a new `Buffer` using an `array` of octets.
+
+```js
+const buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]);
+ // creates a new Buffer containing ASCII bytes
+ // ['b','u','f','f','e','r']
+```
+
+A `TypeError` will be thrown if `array` is not an `Array`.
+
+### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]])
+
+
+* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or
+ a `new ArrayBuffer()`
+* `byteOffset` {Number} Default: `0`
+* `length` {Number} Default: `arrayBuffer.length - byteOffset`
+
+When passed a reference to the `.buffer` property of a `TypedArray` instance,
+the newly created `Buffer` will share the same allocated memory as the
+TypedArray.
+
+```js
+const arr = new Uint16Array(2);
+arr[0] = 5000;
+arr[1] = 4000;
+
+const buf = Buffer.from(arr.buffer); // shares the memory with arr;
+
+console.log(buf);
+ // Prints:
+
+// changing the TypedArray changes the Buffer also
+arr[1] = 6000;
+
+console.log(buf);
+ // Prints:
+```
+
+The optional `byteOffset` and `length` arguments specify a memory range within
+the `arrayBuffer` that will be shared by the `Buffer`.
+
+```js
+const ab = new ArrayBuffer(10);
+const buf = Buffer.from(ab, 0, 2);
+console.log(buf.length);
+ // Prints: 2
+```
+
+A `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`.
+
+### Class Method: Buffer.from(buffer)
+
+
+* `buffer` {Buffer}
+
+Copies the passed `buffer` data onto a new `Buffer` instance.
+
+```js
+const buf1 = Buffer.from('buffer');
+const buf2 = Buffer.from(buf1);
+
+buf1[0] = 0x61;
+console.log(buf1.toString());
+ // 'auffer'
+console.log(buf2.toString());
+ // 'buffer' (copy is not changed)
+```
+
+A `TypeError` will be thrown if `buffer` is not a `Buffer`.
+
+### Class Method: Buffer.from(str[, encoding])
+
+
+* `str` {String} String to encode.
+* `encoding` {String} Encoding to use, Default: `'utf8'`
+
+Creates a new `Buffer` containing the given JavaScript string `str`. If
+provided, the `encoding` parameter identifies the character encoding.
+If not provided, `encoding` defaults to `'utf8'`.
+
+```js
+const buf1 = Buffer.from('this is a tést');
+console.log(buf1.toString());
+ // prints: this is a tést
+console.log(buf1.toString('ascii'));
+ // prints: this is a tC)st
+
+const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');
+console.log(buf2.toString());
+ // prints: this is a tést
+```
+
+A `TypeError` will be thrown if `str` is not a string.
+
+### Class Method: Buffer.alloc(size[, fill[, encoding]])
+
+
+* `size` {Number}
+* `fill` {Value} Default: `undefined`
+* `encoding` {String} Default: `utf8`
+
+Allocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the
+`Buffer` will be *zero-filled*.
+
+```js
+const buf = Buffer.alloc(5);
+console.log(buf);
+ //
+```
+
+The `size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+If `fill` is specified, the allocated `Buffer` will be initialized by calling
+`buf.fill(fill)`. See [`buf.fill()`][] for more information.
+
+```js
+const buf = Buffer.alloc(5, 'a');
+console.log(buf);
+ //
+```
+
+If both `fill` and `encoding` are specified, the allocated `Buffer` will be
+initialized by calling `buf.fill(fill, encoding)`. For example:
+
+```js
+const buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');
+console.log(buf);
+ //
+```
+
+Calling `Buffer.alloc(size)` can be significantly slower than the alternative
+`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance
+contents will *never contain sensitive data*.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### Class Method: Buffer.allocUnsafe(size)
+
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* `Buffer` of `size` bytes. The `size` must
+be less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit
+architectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is
+thrown. A zero-length Buffer will be created if a `size` less than or equal to
+0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+```js
+const buf = Buffer.allocUnsafe(5);
+console.log(buf);
+ //
+ // (octets will be different, every time)
+buf.fill(0);
+console.log(buf);
+ //
+```
+
+A `TypeError` will be thrown if `size` is not a number.
+
+Note that the `Buffer` module pre-allocates an internal `Buffer` instance of
+size `Buffer.poolSize` that is used as a pool for the fast allocation of new
+`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated
+`new Buffer(size)` constructor) only when `size` is less than or equal to
+`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default
+value of `Buffer.poolSize` is `8192` but can be modified.
+
+Use of this pre-allocated internal memory pool is a key difference between
+calling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.
+Specifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer
+pool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal
+Buffer pool if `size` is less than or equal to half `Buffer.poolSize`. The
+difference is subtle but can be important when an application requires the
+additional performance that `Buffer.allocUnsafe(size)` provides.
+
+### Class Method: Buffer.allocUnsafeSlow(size)
+
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes. The
+`size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+When using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,
+allocations under 4KB are, by default, sliced from a single pre-allocated
+`Buffer`. This allows applications to avoid the garbage collection overhead of
+creating many individually allocated Buffers. This approach improves both
+performance and memory usage by eliminating the need to track and cleanup as
+many `Persistent` objects.
+
+However, in the case where a developer may need to retain a small chunk of
+memory from a pool for an indeterminate amount of time, it may be appropriate
+to create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then
+copy out the relevant bits.
+
+```js
+// need to keep around a few small chunks of memory
+const store = [];
+
+socket.on('readable', () => {
+ const data = socket.read();
+ // allocate for retained data
+ const sb = Buffer.allocUnsafeSlow(10);
+ // copy the data into the new allocation
+ data.copy(sb, 0, 0, 10);
+ store.push(sb);
+});
+```
+
+Use of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after*
+a developer has observed undue memory retention in their applications.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### All the Rest
+
+The rest of the `Buffer` API is exactly the same as in node.js.
+[See the docs](https://nodejs.org/api/buffer.html).
+
+
+## Related links
+
+- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660)
+- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4)
+
+## Why is `Buffer` unsafe?
+
+Today, the node.js `Buffer` constructor is overloaded to handle many different argument
+types like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.),
+`ArrayBuffer`, and also `Number`.
+
+The API is optimized for convenience: you can throw any type at it, and it will try to do
+what you want.
+
+Because the Buffer constructor is so powerful, you often see code like this:
+
+```js
+// Convert UTF-8 strings to hex
+function toHex (str) {
+ return new Buffer(str).toString('hex')
+}
+```
+
+***But what happens if `toHex` is called with a `Number` argument?***
+
+### Remote Memory Disclosure
+
+If an attacker can make your program call the `Buffer` constructor with a `Number`
+argument, then they can make it allocate uninitialized memory from the node.js process.
+This could potentially disclose TLS private keys, user data, or database passwords.
+
+When the `Buffer` constructor is passed a `Number` argument, it returns an
+**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like
+this, you **MUST** overwrite the contents before returning it to the user.
+
+From the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size):
+
+> `new Buffer(size)`
+>
+> - `size` Number
+>
+> The underlying memory for `Buffer` instances created in this way is not initialized.
+> **The contents of a newly created `Buffer` are unknown and could contain sensitive
+> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes.
+
+(Emphasis our own.)
+
+Whenever the programmer intended to create an uninitialized `Buffer` you often see code
+like this:
+
+```js
+var buf = new Buffer(16)
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+ buf[i] = otherBuf[i]
+}
+```
+
+
+### Would this ever be a problem in real code?
+
+Yes. It's surprisingly common to forget to check the type of your variables in a
+dynamically-typed language like JavaScript.
+
+Usually the consequences of assuming the wrong type is that your program crashes with an
+uncaught exception. But the failure mode for forgetting to check the type of arguments to
+the `Buffer` constructor is more catastrophic.
+
+Here's an example of a vulnerable service that takes a JSON payload and converts it to
+hex:
+
+```js
+// Take a JSON payload {str: "some string"} and convert it to hex
+var server = http.createServer(function (req, res) {
+ var data = ''
+ req.setEncoding('utf8')
+ req.on('data', function (chunk) {
+ data += chunk
+ })
+ req.on('end', function () {
+ var body = JSON.parse(data)
+ res.end(new Buffer(body.str).toString('hex'))
+ })
+})
+
+server.listen(8080)
+```
+
+In this example, an http client just has to send:
+
+```json
+{
+ "str": 1000
+}
+```
+
+and it will get back 1,000 bytes of uninitialized memory from the server.
+
+This is a very serious bug. It's similar in severity to the
+[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process
+memory by remote attackers.
+
+
+### Which real-world packages were vulnerable?
+
+#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht)
+
+[Mathias Buus](https://github.com/mafintosh) and I
+([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages,
+[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow
+anyone on the internet to send a series of messages to a user of `bittorrent-dht` and get
+them to reveal 20 bytes at a time of uninitialized memory from the node.js process.
+
+Here's
+[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8)
+that fixed it. We released a new fixed version, created a
+[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all
+vulnerable versions on npm so users will get a warning to upgrade to a newer version.
+
+#### [`ws`](https://www.npmjs.com/package/ws)
+
+That got us wondering if there were other vulnerable packages. Sure enough, within a short
+period of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the
+most popular WebSocket implementation in node.js.
+
+If certain APIs were called with `Number` parameters instead of `String` or `Buffer` as
+expected, then uninitialized server memory would be disclosed to the remote peer.
+
+These were the vulnerable methods:
+
+```js
+socket.send(number)
+socket.ping(number)
+socket.pong(number)
+```
+
+Here's a vulnerable socket server with some echo functionality:
+
+```js
+server.on('connection', function (socket) {
+ socket.on('message', function (message) {
+ message = JSON.parse(message)
+ if (message.type === 'echo') {
+ socket.send(message.data) // send back the user's message
+ }
+ })
+})
+```
+
+`socket.send(number)` called on the server, will disclose server memory.
+
+Here's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue
+was fixed, with a more detailed explanation. Props to
+[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the
+[Node Security Project disclosure](https://nodesecurity.io/advisories/67).
+
+
+### What's the solution?
+
+It's important that node.js offers a fast way to get memory otherwise performance-critical
+applications would needlessly get a lot slower.
+
+But we need a better way to *signal our intent* as programmers. **When we want
+uninitialized memory, we should request it explicitly.**
+
+Sensitive functionality should not be packed into a developer-friendly API that loosely
+accepts many different types. This type of API encourages the lazy practice of passing
+variables in without checking the type very carefully.
+
+#### A new API: `Buffer.allocUnsafe(number)`
+
+The functionality of creating buffers with uninitialized memory should be part of another
+API. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that
+frequently gets user input of all sorts of different types passed into it.
+
+```js
+var buf = Buffer.allocUnsafe(16) // careful, uninitialized memory!
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+ buf[i] = otherBuf[i]
+}
+```
+
+
+### How do we fix node.js core?
+
+We sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as
+`semver-major`) which defends against one case:
+
+```js
+var str = 16
+new Buffer(str, 'utf8')
+```
+
+In this situation, it's implied that the programmer intended the first argument to be a
+string, since they passed an encoding as a second argument. Today, node.js will allocate
+uninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not
+what the programmer intended.
+
+But this is only a partial solution, since if the programmer does `new Buffer(variable)`
+(without an `encoding` parameter) there's no way to know what they intended. If `variable`
+is sometimes a number, then uninitialized memory will sometimes be returned.
+
+### What's the real long-term fix?
+
+We could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when
+we need uninitialized memory. But that would break 1000s of packages.
+
+~~We believe the best solution is to:~~
+
+~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~
+
+~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~
+
+#### Update
+
+We now support adding three new APIs:
+
+- `Buffer.from(value)` - convert from any type to a buffer
+- `Buffer.alloc(size)` - create a zero-filled buffer
+- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size
+
+This solves the core problem that affected `ws` and `bittorrent-dht` which is
+`Buffer(variable)` getting tricked into taking a number argument.
+
+This way, existing code continues working and the impact on the npm ecosystem will be
+minimal. Over time, npm maintainers can migrate performance-critical code to use
+`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`.
+
+
+### Conclusion
+
+We think there's a serious design issue with the `Buffer` API as it exists today. It
+promotes insecure software by putting high-risk functionality into a convenient API
+with friendly "developer ergonomics".
+
+This wasn't merely a theoretical exercise because we found the issue in some of the
+most popular npm packages.
+
+Fortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of
+`buffer`.
+
+```js
+var Buffer = require('safe-buffer').Buffer
+```
+
+Eventually, we hope that node.js core can switch to this new, safer behavior. We believe
+the impact on the ecosystem would be minimal since it's not a breaking change.
+Well-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while
+older, insecure packages would magically become safe from this attack vector.
+
+
+## links
+
+- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514)
+- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67)
+- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68)
+
+
+## credit
+
+The original issues in `bittorrent-dht`
+([disclosure](https://nodesecurity.io/advisories/68)) and
+`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by
+[Mathias Buus](https://github.com/mafintosh) and
+[Feross Aboukhadijeh](http://feross.org/).
+
+Thanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues
+and for his work running the [Node Security Project](https://nodesecurity.io/).
+
+Thanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and
+auditing the code.
+
+
+## license
+
+MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org)
diff --git a/homework7/project_express/node_modules/safe-buffer/index.d.ts b/homework7/project_express/node_modules/safe-buffer/index.d.ts
new file mode 100644
index 0000000..e9fed80
--- /dev/null
+++ b/homework7/project_express/node_modules/safe-buffer/index.d.ts
@@ -0,0 +1,187 @@
+declare module "safe-buffer" {
+ export class Buffer {
+ length: number
+ write(string: string, offset?: number, length?: number, encoding?: string): number;
+ toString(encoding?: string, start?: number, end?: number): string;
+ toJSON(): { type: 'Buffer', data: any[] };
+ equals(otherBuffer: Buffer): boolean;
+ compare(otherBuffer: Buffer, targetStart?: number, targetEnd?: number, sourceStart?: number, sourceEnd?: number): number;
+ copy(targetBuffer: Buffer, targetStart?: number, sourceStart?: number, sourceEnd?: number): number;
+ slice(start?: number, end?: number): Buffer;
+ writeUIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+ writeUIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+ writeIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+ writeIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+ readUIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+ readUIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+ readIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+ readIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+ readUInt8(offset: number, noAssert?: boolean): number;
+ readUInt16LE(offset: number, noAssert?: boolean): number;
+ readUInt16BE(offset: number, noAssert?: boolean): number;
+ readUInt32LE(offset: number, noAssert?: boolean): number;
+ readUInt32BE(offset: number, noAssert?: boolean): number;
+ readInt8(offset: number, noAssert?: boolean): number;
+ readInt16LE(offset: number, noAssert?: boolean): number;
+ readInt16BE(offset: number, noAssert?: boolean): number;
+ readInt32LE(offset: number, noAssert?: boolean): number;
+ readInt32BE(offset: number, noAssert?: boolean): number;
+ readFloatLE(offset: number, noAssert?: boolean): number;
+ readFloatBE(offset: number, noAssert?: boolean): number;
+ readDoubleLE(offset: number, noAssert?: boolean): number;
+ readDoubleBE(offset: number, noAssert?: boolean): number;
+ swap16(): Buffer;
+ swap32(): Buffer;
+ swap64(): Buffer;
+ writeUInt8(value: number, offset: number, noAssert?: boolean): number;
+ writeUInt16LE(value: number, offset: number, noAssert?: boolean): number;
+ writeUInt16BE(value: number, offset: number, noAssert?: boolean): number;
+ writeUInt32LE(value: number, offset: number, noAssert?: boolean): number;
+ writeUInt32BE(value: number, offset: number, noAssert?: boolean): number;
+ writeInt8(value: number, offset: number, noAssert?: boolean): number;
+ writeInt16LE(value: number, offset: number, noAssert?: boolean): number;
+ writeInt16BE(value: number, offset: number, noAssert?: boolean): number;
+ writeInt32LE(value: number, offset: number, noAssert?: boolean): number;
+ writeInt32BE(value: number, offset: number, noAssert?: boolean): number;
+ writeFloatLE(value: number, offset: number, noAssert?: boolean): number;
+ writeFloatBE(value: number, offset: number, noAssert?: boolean): number;
+ writeDoubleLE(value: number, offset: number, noAssert?: boolean): number;
+ writeDoubleBE(value: number, offset: number, noAssert?: boolean): number;
+ fill(value: any, offset?: number, end?: number): this;
+ indexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+ lastIndexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+ includes(value: string | number | Buffer, byteOffset?: number, encoding?: string): boolean;
+
+ /**
+ * Allocates a new buffer containing the given {str}.
+ *
+ * @param str String to store in buffer.
+ * @param encoding encoding to use, optional. Default is 'utf8'
+ */
+ constructor (str: string, encoding?: string);
+ /**
+ * Allocates a new buffer of {size} octets.
+ *
+ * @param size count of octets to allocate.
+ */
+ constructor (size: number);
+ /**
+ * Allocates a new buffer containing the given {array} of octets.
+ *
+ * @param array The octets to store.
+ */
+ constructor (array: Uint8Array);
+ /**
+ * Produces a Buffer backed by the same allocated memory as
+ * the given {ArrayBuffer}.
+ *
+ *
+ * @param arrayBuffer The ArrayBuffer with which to share memory.
+ */
+ constructor (arrayBuffer: ArrayBuffer);
+ /**
+ * Allocates a new buffer containing the given {array} of octets.
+ *
+ * @param array The octets to store.
+ */
+ constructor (array: any[]);
+ /**
+ * Copies the passed {buffer} data onto a new {Buffer} instance.
+ *
+ * @param buffer The buffer to copy.
+ */
+ constructor (buffer: Buffer);
+ prototype: Buffer;
+ /**
+ * Allocates a new Buffer using an {array} of octets.
+ *
+ * @param array
+ */
+ static from(array: any[]): Buffer;
+ /**
+ * When passed a reference to the .buffer property of a TypedArray instance,
+ * the newly created Buffer will share the same allocated memory as the TypedArray.
+ * The optional {byteOffset} and {length} arguments specify a memory range
+ * within the {arrayBuffer} that will be shared by the Buffer.
+ *
+ * @param arrayBuffer The .buffer property of a TypedArray or a new ArrayBuffer()
+ * @param byteOffset
+ * @param length
+ */
+ static from(arrayBuffer: ArrayBuffer, byteOffset?: number, length?: number): Buffer;
+ /**
+ * Copies the passed {buffer} data onto a new Buffer instance.
+ *
+ * @param buffer
+ */
+ static from(buffer: Buffer): Buffer;
+ /**
+ * Creates a new Buffer containing the given JavaScript string {str}.
+ * If provided, the {encoding} parameter identifies the character encoding.
+ * If not provided, {encoding} defaults to 'utf8'.
+ *
+ * @param str
+ */
+ static from(str: string, encoding?: string): Buffer;
+ /**
+ * Returns true if {obj} is a Buffer
+ *
+ * @param obj object to test.
+ */
+ static isBuffer(obj: any): obj is Buffer;
+ /**
+ * Returns true if {encoding} is a valid encoding argument.
+ * Valid string encodings in Node 0.12: 'ascii'|'utf8'|'utf16le'|'ucs2'(alias of 'utf16le')|'base64'|'binary'(deprecated)|'hex'
+ *
+ * @param encoding string to test.
+ */
+ static isEncoding(encoding: string): boolean;
+ /**
+ * Gives the actual byte length of a string. encoding defaults to 'utf8'.
+ * This is not the same as String.prototype.length since that returns the number of characters in a string.
+ *
+ * @param string string to test.
+ * @param encoding encoding used to evaluate (defaults to 'utf8')
+ */
+ static byteLength(string: string, encoding?: string): number;
+ /**
+ * Returns a buffer which is the result of concatenating all the buffers in the list together.
+ *
+ * If the list has no items, or if the totalLength is 0, then it returns a zero-length buffer.
+ * If the list has exactly one item, then the first item of the list is returned.
+ * If the list has more than one item, then a new Buffer is created.
+ *
+ * @param list An array of Buffer objects to concatenate
+ * @param totalLength Total length of the buffers when concatenated.
+ * If totalLength is not provided, it is read from the buffers in the list. However, this adds an additional loop to the function, so it is faster to provide the length explicitly.
+ */
+ static concat(list: Buffer[], totalLength?: number): Buffer;
+ /**
+ * The same as buf1.compare(buf2).
+ */
+ static compare(buf1: Buffer, buf2: Buffer): number;
+ /**
+ * Allocates a new buffer of {size} octets.
+ *
+ * @param size count of octets to allocate.
+ * @param fill if specified, buffer will be initialized by calling buf.fill(fill).
+ * If parameter is omitted, buffer will be filled with zeros.
+ * @param encoding encoding used for call to buf.fill while initalizing
+ */
+ static alloc(size: number, fill?: string | Buffer | number, encoding?: string): Buffer;
+ /**
+ * Allocates a new buffer of {size} octets, leaving memory not initialized, so the contents
+ * of the newly created Buffer are unknown and may contain sensitive data.
+ *
+ * @param size count of octets to allocate
+ */
+ static allocUnsafe(size: number): Buffer;
+ /**
+ * Allocates a new non-pooled buffer of {size} octets, leaving memory not initialized, so the contents
+ * of the newly created Buffer are unknown and may contain sensitive data.
+ *
+ * @param size count of octets to allocate
+ */
+ static allocUnsafeSlow(size: number): Buffer;
+ }
+}
\ No newline at end of file
diff --git a/homework7/project_express/node_modules/safe-buffer/index.js b/homework7/project_express/node_modules/safe-buffer/index.js
new file mode 100644
index 0000000..22438da
--- /dev/null
+++ b/homework7/project_express/node_modules/safe-buffer/index.js
@@ -0,0 +1,62 @@
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+ for (var key in src) {
+ dst[key] = src[key]
+ }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+ module.exports = buffer
+} else {
+ // Copy properties from require('buffer')
+ copyProps(buffer, exports)
+ exports.Buffer = SafeBuffer
+}
+
+function SafeBuffer (arg, encodingOrOffset, length) {
+ return Buffer(arg, encodingOrOffset, length)
+}
+
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
+
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+ if (typeof arg === 'number') {
+ throw new TypeError('Argument must not be a number')
+ }
+ return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.alloc = function (size, fill, encoding) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ var buf = Buffer(size)
+ if (fill !== undefined) {
+ if (typeof encoding === 'string') {
+ buf.fill(fill, encoding)
+ } else {
+ buf.fill(fill)
+ }
+ } else {
+ buf.fill(0)
+ }
+ return buf
+}
+
+SafeBuffer.allocUnsafe = function (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ return Buffer(size)
+}
+
+SafeBuffer.allocUnsafeSlow = function (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ return buffer.SlowBuffer(size)
+}
diff --git a/homework7/project_express/node_modules/safe-buffer/package.json b/homework7/project_express/node_modules/safe-buffer/package.json
new file mode 100644
index 0000000..eb76d92
--- /dev/null
+++ b/homework7/project_express/node_modules/safe-buffer/package.json
@@ -0,0 +1,63 @@
+{
+ "_from": "safe-buffer@5.1.2",
+ "_id": "safe-buffer@5.1.2",
+ "_inBundle": false,
+ "_integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+ "_location": "/safe-buffer",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "safe-buffer@5.1.2",
+ "name": "safe-buffer",
+ "escapedName": "safe-buffer",
+ "rawSpec": "5.1.2",
+ "saveSpec": null,
+ "fetchSpec": "5.1.2"
+ },
+ "_requiredBy": [
+ "/content-disposition",
+ "/express"
+ ],
+ "_resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+ "_shasum": "991ec69d296e0313747d59bdfd2b745c35f8828d",
+ "_spec": "safe-buffer@5.1.2",
+ "_where": "D:\\Education\\JS-2\\7\\project_express\\node_modules\\express",
+ "author": {
+ "name": "Feross Aboukhadijeh",
+ "email": "feross@feross.org",
+ "url": "http://feross.org"
+ },
+ "bugs": {
+ "url": "https://github.com/feross/safe-buffer/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Safer Node.js Buffer API",
+ "devDependencies": {
+ "standard": "*",
+ "tape": "^4.0.0"
+ },
+ "homepage": "https://github.com/feross/safe-buffer",
+ "keywords": [
+ "buffer",
+ "buffer allocate",
+ "node security",
+ "safe",
+ "safe-buffer",
+ "security",
+ "uninitialized"
+ ],
+ "license": "MIT",
+ "main": "index.js",
+ "name": "safe-buffer",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/feross/safe-buffer.git"
+ },
+ "scripts": {
+ "test": "standard && tape test/*.js"
+ },
+ "types": "index.d.ts",
+ "version": "5.1.2"
+}
diff --git a/homework7/project_express/node_modules/safer-buffer/LICENSE b/homework7/project_express/node_modules/safer-buffer/LICENSE
new file mode 100644
index 0000000..4fe9e6f
--- /dev/null
+++ b/homework7/project_express/node_modules/safer-buffer/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Nikita Skovoroda
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/homework7/project_express/node_modules/safer-buffer/Porting-Buffer.md b/homework7/project_express/node_modules/safer-buffer/Porting-Buffer.md
new file mode 100644
index 0000000..68d86ba
--- /dev/null
+++ b/homework7/project_express/node_modules/safer-buffer/Porting-Buffer.md
@@ -0,0 +1,268 @@
+# Porting to the Buffer.from/Buffer.alloc API
+
+
+## Overview
+
+- [Variant 1: Drop support for Node.js ≤ 4.4.x and 5.0.0 — 5.9.x.](#variant-1) (*recommended*)
+- [Variant 2: Use a polyfill](#variant-2)
+- [Variant 3: manual detection, with safeguards](#variant-3)
+
+### Finding problematic bits of code using grep
+
+Just run `grep -nrE '[^a-zA-Z](Slow)?Buffer\s*\(' --exclude-dir node_modules`.
+
+It will find all the potentially unsafe places in your own code (with some considerably unlikely
+exceptions).
+
+### Finding problematic bits of code using Node.js 8
+
+If you’re using Node.js ≥ 8.0.0 (which is recommended), Node.js exposes multiple options that help with finding the relevant pieces of code:
+
+- `--trace-warnings` will make Node.js show a stack trace for this warning and other warnings that are printed by Node.js.
+- `--trace-deprecation` does the same thing, but only for deprecation warnings.
+- `--pending-deprecation` will show more types of deprecation warnings. In particular, it will show the `Buffer()` deprecation warning, even on Node.js 8.
+
+You can set these flags using an environment variable:
+
+```console
+$ export NODE_OPTIONS='--trace-warnings --pending-deprecation'
+$ cat example.js
+'use strict';
+const foo = new Buffer('foo');
+$ node example.js
+(node:7147) [DEP0005] DeprecationWarning: The Buffer() and new Buffer() constructors are not recommended for use due to security and usability concerns. Please use the new Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() construction methods instead.
+ at showFlaggedDeprecation (buffer.js:127:13)
+ at new Buffer (buffer.js:148:3)
+ at Object. (/path/to/example.js:2:13)
+ [... more stack trace lines ...]
+```
+
+### Finding problematic bits of code using linters
+
+Eslint rules [no-buffer-constructor](https://eslint.org/docs/rules/no-buffer-constructor)
+or
+[node/no-deprecated-api](https://github.com/mysticatea/eslint-plugin-node/blob/master/docs/rules/no-deprecated-api.md)
+also find calls to deprecated `Buffer()` API. Those rules are included in some pre-sets.
+
+There is a drawback, though, that it doesn't always
+[work correctly](https://github.com/chalker/safer-buffer#why-not-safe-buffer) when `Buffer` is
+overriden e.g. with a polyfill, so recommended is a combination of this and some other method
+described above.
+
+
+## Variant 1: Drop support for Node.js ≤ 4.4.x and 5.0.0 — 5.9.x.
+
+This is the recommended solution nowadays that would imply only minimal overhead.
+
+The Node.js 5.x release line has been unsupported since July 2016, and the Node.js 4.x release line reaches its End of Life in April 2018 (→ [Schedule](https://github.com/nodejs/Release#release-schedule)). This means that these versions of Node.js will *not* receive any updates, even in case of security issues, so using these release lines should be avoided, if at all possible.
+
+What you would do in this case is to convert all `new Buffer()` or `Buffer()` calls to use `Buffer.alloc()` or `Buffer.from()`, in the following way:
+
+- For `new Buffer(number)`, replace it with `Buffer.alloc(number)`.
+- For `new Buffer(string)` (or `new Buffer(string, encoding)`), replace it with `Buffer.from(string)` (or `Buffer.from(string, encoding)`).
+- For all other combinations of arguments (these are much rarer), also replace `new Buffer(...arguments)` with `Buffer.from(...arguments)`.
+
+Note that `Buffer.alloc()` is also _faster_ on the current Node.js versions than
+`new Buffer(size).fill(0)`, which is what you would otherwise need to ensure zero-filling.
+
+Enabling eslint rule [no-buffer-constructor](https://eslint.org/docs/rules/no-buffer-constructor)
+or
+[node/no-deprecated-api](https://github.com/mysticatea/eslint-plugin-node/blob/master/docs/rules/no-deprecated-api.md)
+is recommended to avoid accidential unsafe Buffer API usage.
+
+There is also a [JSCodeshift codemod](https://github.com/joyeecheung/node-dep-codemod#dep005)
+for automatically migrating Buffer constructors to `Buffer.alloc()` or `Buffer.from()`.
+Note that it currently only works with cases where the arguments are literals or where the
+constructor is invoked with two arguments.
+
+_If you currently support those older Node.js versions and dropping them would be a semver-major change
+for you, or if you support older branches of your packages, consider using [Variant 2](#variant-2)
+or [Variant 3](#variant-3) on older branches, so people using those older branches will also receive
+the fix. That way, you will eradicate potential issues caused by unguarded Buffer API usage and
+your users will not observe a runtime deprecation warning when running your code on Node.js 10._
+
+
+## Variant 2: Use a polyfill
+
+Utilize [safer-buffer](https://www.npmjs.com/package/safer-buffer) as a polyfill to support older
+Node.js versions.
+
+You would take exacly the same steps as in [Variant 1](#variant-1), but with a polyfill
+`const Buffer = require('safer-buffer').Buffer` in all files where you use the new `Buffer` api.
+
+Make sure that you do not use old `new Buffer` API — in any files where the line above is added,
+using old `new Buffer()` API will _throw_. It will be easy to notice that in CI, though.
+
+Alternatively, you could use [buffer-from](https://www.npmjs.com/package/buffer-from) and/or
+[buffer-alloc](https://www.npmjs.com/package/buffer-alloc) [ponyfills](https://ponyfill.com/) —
+those are great, the only downsides being 4 deps in the tree and slightly more code changes to
+migrate off them (as you would be using e.g. `Buffer.from` under a different name). If you need only
+`Buffer.from` polyfilled — `buffer-from` alone which comes with no extra dependencies.
+
+_Alternatively, you could use [safe-buffer](https://www.npmjs.com/package/safe-buffer) — it also
+provides a polyfill, but takes a different approach which has
+[it's drawbacks](https://github.com/chalker/safer-buffer#why-not-safe-buffer). It will allow you
+to also use the older `new Buffer()` API in your code, though — but that's arguably a benefit, as
+it is problematic, can cause issues in your code, and will start emitting runtime deprecation
+warnings starting with Node.js 10._
+
+Note that in either case, it is important that you also remove all calls to the old Buffer
+API manually — just throwing in `safe-buffer` doesn't fix the problem by itself, it just provides
+a polyfill for the new API. I have seen people doing that mistake.
+
+Enabling eslint rule [no-buffer-constructor](https://eslint.org/docs/rules/no-buffer-constructor)
+or
+[node/no-deprecated-api](https://github.com/mysticatea/eslint-plugin-node/blob/master/docs/rules/no-deprecated-api.md)
+is recommended.
+
+_Don't forget to drop the polyfill usage once you drop support for Node.js < 4.5.0._
+
+
+## Variant 3 — manual detection, with safeguards
+
+This is useful if you create Buffer instances in only a few places (e.g. one), or you have your own
+wrapper around them.
+
+### Buffer(0)
+
+This special case for creating empty buffers can be safely replaced with `Buffer.concat([])`, which
+returns the same result all the way down to Node.js 0.8.x.
+
+### Buffer(notNumber)
+
+Before:
+
+```js
+var buf = new Buffer(notNumber, encoding);
+```
+
+After:
+
+```js
+var buf;
+if (Buffer.from && Buffer.from !== Uint8Array.from) {
+ buf = Buffer.from(notNumber, encoding);
+} else {
+ if (typeof notNumber === 'number')
+ throw new Error('The "size" argument must be of type number.');
+ buf = new Buffer(notNumber, encoding);
+}
+```
+
+`encoding` is optional.
+
+Note that the `typeof notNumber` before `new Buffer` is required (for cases when `notNumber` argument is not
+hard-coded) and _is not caused by the deprecation of Buffer constructor_ — it's exactly _why_ the
+Buffer constructor is deprecated. Ecosystem packages lacking this type-check caused numereous
+security issues — situations when unsanitized user input could end up in the `Buffer(arg)` create
+problems ranging from DoS to leaking sensitive information to the attacker from the process memory.
+
+When `notNumber` argument is hardcoded (e.g. literal `"abc"` or `[0,1,2]`), the `typeof` check can
+be omitted.
+
+Also note that using TypeScript does not fix this problem for you — when libs written in
+`TypeScript` are used from JS, or when user input ends up there — it behaves exactly as pure JS, as
+all type checks are translation-time only and are not present in the actual JS code which TS
+compiles to.
+
+### Buffer(number)
+
+For Node.js 0.10.x (and below) support:
+
+```js
+var buf;
+if (Buffer.alloc) {
+ buf = Buffer.alloc(number);
+} else {
+ buf = new Buffer(number);
+ buf.fill(0);
+}
+```
+
+Otherwise (Node.js ≥ 0.12.x):
+
+```js
+const buf = Buffer.alloc ? Buffer.alloc(number) : new Buffer(number).fill(0);
+```
+
+## Regarding Buffer.allocUnsafe
+
+Be extra cautious when using `Buffer.allocUnsafe`:
+ * Don't use it if you don't have a good reason to
+ * e.g. you probably won't ever see a performance difference for small buffers, in fact, those
+ might be even faster with `Buffer.alloc()`,
+ * if your code is not in the hot code path — you also probably won't notice a difference,
+ * keep in mind that zero-filling minimizes the potential risks.
+ * If you use it, make sure that you never return the buffer in a partially-filled state,
+ * if you are writing to it sequentially — always truncate it to the actuall written length
+
+Errors in handling buffers allocated with `Buffer.allocUnsafe` could result in various issues,
+ranged from undefined behaviour of your code to sensitive data (user input, passwords, certs)
+leaking to the remote attacker.
+
+_Note that the same applies to `new Buffer` usage without zero-filling, depending on the Node.js
+version (and lacking type checks also adds DoS to the list of potential problems)._
+
+
+## FAQ
+
+
+### What is wrong with the `Buffer` constructor?
+
+The `Buffer` constructor could be used to create a buffer in many different ways:
+
+- `new Buffer(42)` creates a `Buffer` of 42 bytes. Before Node.js 8, this buffer contained
+ *arbitrary memory* for performance reasons, which could include anything ranging from
+ program source code to passwords and encryption keys.
+- `new Buffer('abc')` creates a `Buffer` that contains the UTF-8-encoded version of
+ the string `'abc'`. A second argument could specify another encoding: For example,
+ `new Buffer(string, 'base64')` could be used to convert a Base64 string into the original
+ sequence of bytes that it represents.
+- There are several other combinations of arguments.
+
+This meant that, in code like `var buffer = new Buffer(foo);`, *it is not possible to tell
+what exactly the contents of the generated buffer are* without knowing the type of `foo`.
+
+Sometimes, the value of `foo` comes from an external source. For example, this function
+could be exposed as a service on a web server, converting a UTF-8 string into its Base64 form:
+
+```
+function stringToBase64(req, res) {
+ // The request body should have the format of `{ string: 'foobar' }`
+ const rawBytes = new Buffer(req.body.string)
+ const encoded = rawBytes.toString('base64')
+ res.end({ encoded: encoded })
+}
+```
+
+Note that this code does *not* validate the type of `req.body.string`:
+
+- `req.body.string` is expected to be a string. If this is the case, all goes well.
+- `req.body.string` is controlled by the client that sends the request.
+- If `req.body.string` is the *number* `50`, the `rawBytes` would be 50 bytes:
+ - Before Node.js 8, the content would be uninitialized
+ - After Node.js 8, the content would be `50` bytes with the value `0`
+
+Because of the missing type check, an attacker could intentionally send a number
+as part of the request. Using this, they can either:
+
+- Read uninitialized memory. This **will** leak passwords, encryption keys and other
+ kinds of sensitive information. (Information leak)
+- Force the program to allocate a large amount of memory. For example, when specifying
+ `500000000` as the input value, each request will allocate 500MB of memory.
+ This can be used to either exhaust the memory available of a program completely
+ and make it crash, or slow it down significantly. (Denial of Service)
+
+Both of these scenarios are considered serious security issues in a real-world
+web server context.
+
+when using `Buffer.from(req.body.string)` instead, passing a number will always
+throw an exception instead, giving a controlled behaviour that can always be
+handled by the program.
+
+
+### The `Buffer()` constructor has been deprecated for a while. Is this really an issue?
+
+Surveys of code in the `npm` ecosystem have shown that the `Buffer()` constructor is still
+widely used. This includes new code, and overall usage of such code has actually been
+*increasing*.
diff --git a/homework7/project_express/node_modules/safer-buffer/Readme.md b/homework7/project_express/node_modules/safer-buffer/Readme.md
new file mode 100644
index 0000000..14b0822
--- /dev/null
+++ b/homework7/project_express/node_modules/safer-buffer/Readme.md
@@ -0,0 +1,156 @@
+# safer-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![javascript style guide][standard-image]][standard-url] [![Security Responsible Disclosure][secuirty-image]][secuirty-url]
+
+[travis-image]: https://travis-ci.org/ChALkeR/safer-buffer.svg?branch=master
+[travis-url]: https://travis-ci.org/ChALkeR/safer-buffer
+[npm-image]: https://img.shields.io/npm/v/safer-buffer.svg
+[npm-url]: https://npmjs.org/package/safer-buffer
+[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
+[standard-url]: https://standardjs.com
+[secuirty-image]: https://img.shields.io/badge/Security-Responsible%20Disclosure-green.svg
+[secuirty-url]: https://github.com/nodejs/security-wg/blob/master/processes/responsible_disclosure_template.md
+
+Modern Buffer API polyfill without footguns, working on Node.js from 0.8 to current.
+
+## How to use?
+
+First, port all `Buffer()` and `new Buffer()` calls to `Buffer.alloc()` and `Buffer.from()` API.
+
+Then, to achieve compatibility with outdated Node.js versions (`<4.5.0` and 5.x `<5.9.0`), use
+`const Buffer = require('safer-buffer').Buffer` in all files where you make calls to the new
+Buffer API. _Use `var` instead of `const` if you need that for your Node.js version range support._
+
+Also, see the
+[porting Buffer](https://github.com/ChALkeR/safer-buffer/blob/master/Porting-Buffer.md) guide.
+
+## Do I need it?
+
+Hopefully, not — dropping support for outdated Node.js versions should be fine nowdays, and that
+is the recommended path forward. You _do_ need to port to the `Buffer.alloc()` and `Buffer.from()`
+though.
+
+See the [porting guide](https://github.com/ChALkeR/safer-buffer/blob/master/Porting-Buffer.md)
+for a better description.
+
+## Why not [safe-buffer](https://npmjs.com/safe-buffer)?
+
+_In short: while `safe-buffer` serves as a polyfill for the new API, it allows old API usage and
+itself contains footguns._
+
+`safe-buffer` could be used safely to get the new API while still keeping support for older
+Node.js versions (like this module), but while analyzing ecosystem usage of the old Buffer API
+I found out that `safe-buffer` is itself causing problems in some cases.
+
+For example, consider the following snippet:
+
+```console
+$ cat example.unsafe.js
+console.log(Buffer(20))
+$ ./node-v6.13.0-linux-x64/bin/node example.unsafe.js
+
+$ standard example.unsafe.js
+standard: Use JavaScript Standard Style (https://standardjs.com)
+ /home/chalker/repo/safer-buffer/example.unsafe.js:2:13: 'Buffer()' was deprecated since v6. Use 'Buffer.alloc()' or 'Buffer.from()' (use 'https://www.npmjs.com/package/safe-buffer' for '<4.5.0') instead.
+```
+
+This is allocates and writes to console an uninitialized chunk of memory.
+[standard](https://www.npmjs.com/package/standard) linter (among others) catch that and warn people
+to avoid using unsafe API.
+
+Let's now throw in `safe-buffer`!
+
+```console
+$ cat example.safe-buffer.js
+const Buffer = require('safe-buffer').Buffer
+console.log(Buffer(20))
+$ standard example.safe-buffer.js
+$ ./node-v6.13.0-linux-x64/bin/node example.safe-buffer.js
+
+```
+
+See the problem? Adding in `safe-buffer` _magically removes the lint warning_, but the behavior
+remains identiсal to what we had before, and when launched on Node.js 6.x LTS — this dumps out
+chunks of uninitialized memory.
+_And this code will still emit runtime warnings on Node.js 10.x and above._
+
+That was done by design. I first considered changing `safe-buffer`, prohibiting old API usage or
+emitting warnings on it, but that significantly diverges from `safe-buffer` design. After some
+discussion, it was decided to move my approach into a separate package, and _this is that separate
+package_.
+
+This footgun is not imaginary — I observed top-downloaded packages doing that kind of thing,
+«fixing» the lint warning by blindly including `safe-buffer` without any actual changes.
+
+Also in some cases, even if the API _was_ migrated to use of safe Buffer API — a random pull request
+can bring unsafe Buffer API usage back to the codebase by adding new calls — and that could go
+unnoticed even if you have a linter prohibiting that (becase of the reason stated above), and even
+pass CI. _I also observed that being done in popular packages._
+
+Some examples:
+ * [webdriverio](https://github.com/webdriverio/webdriverio/commit/05cbd3167c12e4930f09ef7cf93b127ba4effae4#diff-124380949022817b90b622871837d56cR31)
+ (a module with 548 759 downloads/month),
+ * [websocket-stream](https://github.com/maxogden/websocket-stream/commit/c9312bd24d08271687d76da0fe3c83493871cf61)
+ (218 288 d/m, fix in [maxogden/websocket-stream#142](https://github.com/maxogden/websocket-stream/pull/142)),
+ * [node-serialport](https://github.com/node-serialport/node-serialport/commit/e8d9d2b16c664224920ce1c895199b1ce2def48c)
+ (113 138 d/m, fix in [node-serialport/node-serialport#1510](https://github.com/node-serialport/node-serialport/pull/1510)),
+ * [karma](https://github.com/karma-runner/karma/commit/3d94b8cf18c695104ca195334dc75ff054c74eec)
+ (3 973 193 d/m, fix in [karma-runner/karma#2947](https://github.com/karma-runner/karma/pull/2947)),
+ * [spdy-transport](https://github.com/spdy-http2/spdy-transport/commit/5375ac33f4a62a4f65bcfc2827447d42a5dbe8b1)
+ (5 970 727 d/m, fix in [spdy-http2/spdy-transport#53](https://github.com/spdy-http2/spdy-transport/pull/53)).
+ * And there are a lot more over the ecosystem.
+
+I filed a PR at
+[mysticatea/eslint-plugin-node#110](https://github.com/mysticatea/eslint-plugin-node/pull/110) to
+partially fix that (for cases when that lint rule is used), but it is a semver-major change for
+linter rules and presets, so it would take significant time for that to reach actual setups.
+_It also hasn't been released yet (2018-03-20)._
+
+Also, `safer-buffer` discourages the usage of `.allocUnsafe()`, which is often done by a mistake.
+It still supports it with an explicit concern barier, by placing it under
+`require('safer-buffer/dangereous')`.
+
+## But isn't throwing bad?
+
+Not really. It's an error that could be noticed and fixed early, instead of causing havoc later like
+unguarded `new Buffer()` calls that end up receiving user input can do.
+
+This package affects only the files where `var Buffer = require('safer-buffer').Buffer` was done, so
+it is really simple to keep track of things and make sure that you don't mix old API usage with that.
+Also, CI should hint anything that you might have missed.
+
+New commits, if tested, won't land new usage of unsafe Buffer API this way.
+_Node.js 10.x also deals with that by printing a runtime depecation warning._
+
+### Would it affect third-party modules?
+
+No, unless you explicitly do an awful thing like monkey-patching or overriding the built-in `Buffer`.
+Don't do that.
+
+### But I don't want throwing…
+
+That is also fine!
+
+Also, it could be better in some cases when you don't comprehensive enough test coverage.
+
+In that case — just don't override `Buffer` and use
+`var SaferBuffer = require('safer-buffer').Buffer` instead.
+
+That way, everything using `Buffer` natively would still work, but there would be two drawbacks:
+
+* `Buffer.from`/`Buffer.alloc` won't be polyfilled — use `SaferBuffer.from` and
+ `SaferBuffer.alloc` instead.
+* You are still open to accidentally using the insecure deprecated API — use a linter to catch that.
+
+Note that using a linter to catch accidential `Buffer` constructor usage in this case is strongly
+recommended. `Buffer` is not overriden in this usecase, so linters won't get confused.
+
+## «Without footguns»?
+
+Well, it is still possible to do _some_ things with `Buffer` API, e.g. accessing `.buffer` property
+on older versions and duping things from there. You shouldn't do that in your code, probabably.
+
+The intention is to remove the most significant footguns that affect lots of packages in the
+ecosystem, and to do it in the proper way.
+
+Also, this package doesn't protect against security issues affecting some Node.js versions, so for
+usage in your own production code, it is still recommended to update to a Node.js version
+[supported by upstream](https://github.com/nodejs/release#release-schedule).
diff --git a/homework7/project_express/node_modules/safer-buffer/dangerous.js b/homework7/project_express/node_modules/safer-buffer/dangerous.js
new file mode 100644
index 0000000..ca41fdc
--- /dev/null
+++ b/homework7/project_express/node_modules/safer-buffer/dangerous.js
@@ -0,0 +1,58 @@
+/* eslint-disable node/no-deprecated-api */
+
+'use strict'
+
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+var safer = require('./safer.js')
+var Safer = safer.Buffer
+
+var dangerous = {}
+
+var key
+
+for (key in safer) {
+ if (!safer.hasOwnProperty(key)) continue
+ dangerous[key] = safer[key]
+}
+
+var Dangereous = dangerous.Buffer = {}
+
+// Copy Safer API
+for (key in Safer) {
+ if (!Safer.hasOwnProperty(key)) continue
+ Dangereous[key] = Safer[key]
+}
+
+// Copy those missing unsafe methods, if they are present
+for (key in Buffer) {
+ if (!Buffer.hasOwnProperty(key)) continue
+ if (Dangereous.hasOwnProperty(key)) continue
+ Dangereous[key] = Buffer[key]
+}
+
+if (!Dangereous.allocUnsafe) {
+ Dangereous.allocUnsafe = function (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
+ }
+ if (size < 0 || size >= 2 * (1 << 30)) {
+ throw new RangeError('The value "' + size + '" is invalid for option "size"')
+ }
+ return Buffer(size)
+ }
+}
+
+if (!Dangereous.allocUnsafeSlow) {
+ Dangereous.allocUnsafeSlow = function (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
+ }
+ if (size < 0 || size >= 2 * (1 << 30)) {
+ throw new RangeError('The value "' + size + '" is invalid for option "size"')
+ }
+ return buffer.SlowBuffer(size)
+ }
+}
+
+module.exports = dangerous
diff --git a/homework7/project_express/node_modules/safer-buffer/package.json b/homework7/project_express/node_modules/safer-buffer/package.json
new file mode 100644
index 0000000..19230ab
--- /dev/null
+++ b/homework7/project_express/node_modules/safer-buffer/package.json
@@ -0,0 +1,60 @@
+{
+ "_from": "safer-buffer@>= 2.1.2 < 3",
+ "_id": "safer-buffer@2.1.2",
+ "_inBundle": false,
+ "_integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
+ "_location": "/safer-buffer",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "safer-buffer@>= 2.1.2 < 3",
+ "name": "safer-buffer",
+ "escapedName": "safer-buffer",
+ "rawSpec": ">= 2.1.2 < 3",
+ "saveSpec": null,
+ "fetchSpec": ">= 2.1.2 < 3"
+ },
+ "_requiredBy": [
+ "/iconv-lite"
+ ],
+ "_resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
+ "_shasum": "44fa161b0187b9549dd84bb91802f9bd8385cd6a",
+ "_spec": "safer-buffer@>= 2.1.2 < 3",
+ "_where": "D:\\Education\\JS-2\\7\\project_express\\node_modules\\iconv-lite",
+ "author": {
+ "name": "Nikita Skovoroda",
+ "email": "chalkerx@gmail.com",
+ "url": "https://github.com/ChALkeR"
+ },
+ "bugs": {
+ "url": "https://github.com/ChALkeR/safer-buffer/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Modern Buffer API polyfill without footguns",
+ "devDependencies": {
+ "standard": "^11.0.1",
+ "tape": "^4.9.0"
+ },
+ "files": [
+ "Porting-Buffer.md",
+ "Readme.md",
+ "tests.js",
+ "dangerous.js",
+ "safer.js"
+ ],
+ "homepage": "https://github.com/ChALkeR/safer-buffer#readme",
+ "license": "MIT",
+ "main": "safer.js",
+ "name": "safer-buffer",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/ChALkeR/safer-buffer.git"
+ },
+ "scripts": {
+ "browserify-test": "browserify --external tape tests.js > browserify-tests.js && tape browserify-tests.js",
+ "test": "standard && tape tests.js"
+ },
+ "version": "2.1.2"
+}
diff --git a/homework7/project_express/node_modules/safer-buffer/safer.js b/homework7/project_express/node_modules/safer-buffer/safer.js
new file mode 100644
index 0000000..37c7e1a
--- /dev/null
+++ b/homework7/project_express/node_modules/safer-buffer/safer.js
@@ -0,0 +1,77 @@
+/* eslint-disable node/no-deprecated-api */
+
+'use strict'
+
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+var safer = {}
+
+var key
+
+for (key in buffer) {
+ if (!buffer.hasOwnProperty(key)) continue
+ if (key === 'SlowBuffer' || key === 'Buffer') continue
+ safer[key] = buffer[key]
+}
+
+var Safer = safer.Buffer = {}
+for (key in Buffer) {
+ if (!Buffer.hasOwnProperty(key)) continue
+ if (key === 'allocUnsafe' || key === 'allocUnsafeSlow') continue
+ Safer[key] = Buffer[key]
+}
+
+safer.Buffer.prototype = Buffer.prototype
+
+if (!Safer.from || Safer.from === Uint8Array.from) {
+ Safer.from = function (value, encodingOrOffset, length) {
+ if (typeof value === 'number') {
+ throw new TypeError('The "value" argument must not be of type number. Received type ' + typeof value)
+ }
+ if (value && typeof value.length === 'undefined') {
+ throw new TypeError('The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type ' + typeof value)
+ }
+ return Buffer(value, encodingOrOffset, length)
+ }
+}
+
+if (!Safer.alloc) {
+ Safer.alloc = function (size, fill, encoding) {
+ if (typeof size !== 'number') {
+ throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
+ }
+ if (size < 0 || size >= 2 * (1 << 30)) {
+ throw new RangeError('The value "' + size + '" is invalid for option "size"')
+ }
+ var buf = Buffer(size)
+ if (!fill || fill.length === 0) {
+ buf.fill(0)
+ } else if (typeof encoding === 'string') {
+ buf.fill(fill, encoding)
+ } else {
+ buf.fill(fill)
+ }
+ return buf
+ }
+}
+
+if (!safer.kStringMaxLength) {
+ try {
+ safer.kStringMaxLength = process.binding('buffer').kStringMaxLength
+ } catch (e) {
+ // we can't determine kStringMaxLength in environments where process.binding
+ // is unsupported, so let's not set it
+ }
+}
+
+if (!safer.constants) {
+ safer.constants = {
+ MAX_LENGTH: safer.kMaxLength
+ }
+ if (safer.kStringMaxLength) {
+ safer.constants.MAX_STRING_LENGTH = safer.kStringMaxLength
+ }
+}
+
+module.exports = safer
diff --git a/homework7/project_express/node_modules/safer-buffer/tests.js b/homework7/project_express/node_modules/safer-buffer/tests.js
new file mode 100644
index 0000000..7ed2777
--- /dev/null
+++ b/homework7/project_express/node_modules/safer-buffer/tests.js
@@ -0,0 +1,406 @@
+/* eslint-disable node/no-deprecated-api */
+
+'use strict'
+
+var test = require('tape')
+
+var buffer = require('buffer')
+
+var index = require('./')
+var safer = require('./safer')
+var dangerous = require('./dangerous')
+
+/* Inheritance tests */
+
+test('Default is Safer', function (t) {
+ t.equal(index, safer)
+ t.notEqual(safer, dangerous)
+ t.notEqual(index, dangerous)
+ t.end()
+})
+
+test('Is not a function', function (t) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(typeof impl, 'object')
+ t.equal(typeof impl.Buffer, 'object')
+ });
+ [buffer].forEach(function (impl) {
+ t.equal(typeof impl, 'object')
+ t.equal(typeof impl.Buffer, 'function')
+ })
+ t.end()
+})
+
+test('Constructor throws', function (t) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.throws(function () { impl.Buffer() })
+ t.throws(function () { impl.Buffer(0) })
+ t.throws(function () { impl.Buffer('a') })
+ t.throws(function () { impl.Buffer('a', 'utf-8') })
+ t.throws(function () { return new impl.Buffer() })
+ t.throws(function () { return new impl.Buffer(0) })
+ t.throws(function () { return new impl.Buffer('a') })
+ t.throws(function () { return new impl.Buffer('a', 'utf-8') })
+ })
+ t.end()
+})
+
+test('Safe methods exist', function (t) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(typeof impl.Buffer.alloc, 'function', 'alloc')
+ t.equal(typeof impl.Buffer.from, 'function', 'from')
+ })
+ t.end()
+})
+
+test('Unsafe methods exist only in Dangerous', function (t) {
+ [index, safer].forEach(function (impl) {
+ t.equal(typeof impl.Buffer.allocUnsafe, 'undefined')
+ t.equal(typeof impl.Buffer.allocUnsafeSlow, 'undefined')
+ });
+ [dangerous].forEach(function (impl) {
+ t.equal(typeof impl.Buffer.allocUnsafe, 'function')
+ t.equal(typeof impl.Buffer.allocUnsafeSlow, 'function')
+ })
+ t.end()
+})
+
+test('Generic methods/properties are defined and equal', function (t) {
+ ['poolSize', 'isBuffer', 'concat', 'byteLength'].forEach(function (method) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(impl.Buffer[method], buffer.Buffer[method], method)
+ t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+ })
+ })
+ t.end()
+})
+
+test('Built-in buffer static methods/properties are inherited', function (t) {
+ Object.keys(buffer).forEach(function (method) {
+ if (method === 'SlowBuffer' || method === 'Buffer') return;
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(impl[method], buffer[method], method)
+ t.notEqual(typeof impl[method], 'undefined', method)
+ })
+ })
+ t.end()
+})
+
+test('Built-in Buffer static methods/properties are inherited', function (t) {
+ Object.keys(buffer.Buffer).forEach(function (method) {
+ if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(impl.Buffer[method], buffer.Buffer[method], method)
+ t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+ })
+ })
+ t.end()
+})
+
+test('.prototype property of Buffer is inherited', function (t) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(impl.Buffer.prototype, buffer.Buffer.prototype, 'prototype')
+ t.notEqual(typeof impl.Buffer.prototype, 'undefined', 'prototype')
+ })
+ t.end()
+})
+
+test('All Safer methods are present in Dangerous', function (t) {
+ Object.keys(safer).forEach(function (method) {
+ if (method === 'Buffer') return;
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(impl[method], safer[method], method)
+ if (method !== 'kStringMaxLength') {
+ t.notEqual(typeof impl[method], 'undefined', method)
+ }
+ })
+ })
+ Object.keys(safer.Buffer).forEach(function (method) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(impl.Buffer[method], safer.Buffer[method], method)
+ t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+ })
+ })
+ t.end()
+})
+
+test('Safe methods from Dangerous methods are present in Safer', function (t) {
+ Object.keys(dangerous).forEach(function (method) {
+ if (method === 'Buffer') return;
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(impl[method], dangerous[method], method)
+ if (method !== 'kStringMaxLength') {
+ t.notEqual(typeof impl[method], 'undefined', method)
+ }
+ })
+ })
+ Object.keys(dangerous.Buffer).forEach(function (method) {
+ if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(impl.Buffer[method], dangerous.Buffer[method], method)
+ t.notEqual(typeof impl.Buffer[method], 'undefined', method)
+ })
+ })
+ t.end()
+})
+
+/* Behaviour tests */
+
+test('Methods return Buffers', function (t) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0)))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 10)))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 'a')))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10)))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10, 'x')))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(9, 'ab')))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('')))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string')))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string', 'utf-8')))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64')))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([0, 42, 3])))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.from(new Uint8Array([0, 42, 3]))))
+ t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([])))
+ });
+ ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+ t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](0)))
+ t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](10)))
+ })
+ t.end()
+})
+
+test('Constructor is buffer.Buffer', function (t) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(impl.Buffer.alloc(0).constructor, buffer.Buffer)
+ t.equal(impl.Buffer.alloc(0, 10).constructor, buffer.Buffer)
+ t.equal(impl.Buffer.alloc(0, 'a').constructor, buffer.Buffer)
+ t.equal(impl.Buffer.alloc(10).constructor, buffer.Buffer)
+ t.equal(impl.Buffer.alloc(10, 'x').constructor, buffer.Buffer)
+ t.equal(impl.Buffer.alloc(9, 'ab').constructor, buffer.Buffer)
+ t.equal(impl.Buffer.from('').constructor, buffer.Buffer)
+ t.equal(impl.Buffer.from('string').constructor, buffer.Buffer)
+ t.equal(impl.Buffer.from('string', 'utf-8').constructor, buffer.Buffer)
+ t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').constructor, buffer.Buffer)
+ t.equal(impl.Buffer.from([0, 42, 3]).constructor, buffer.Buffer)
+ t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).constructor, buffer.Buffer)
+ t.equal(impl.Buffer.from([]).constructor, buffer.Buffer)
+ });
+ [0, 10, 100].forEach(function (arg) {
+ t.equal(dangerous.Buffer.allocUnsafe(arg).constructor, buffer.Buffer)
+ t.equal(dangerous.Buffer.allocUnsafeSlow(arg).constructor, buffer.SlowBuffer(0).constructor)
+ })
+ t.end()
+})
+
+test('Invalid calls throw', function (t) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.throws(function () { impl.Buffer.from(0) })
+ t.throws(function () { impl.Buffer.from(10) })
+ t.throws(function () { impl.Buffer.from(10, 'utf-8') })
+ t.throws(function () { impl.Buffer.from('string', 'invalid encoding') })
+ t.throws(function () { impl.Buffer.from(-10) })
+ t.throws(function () { impl.Buffer.from(1e90) })
+ t.throws(function () { impl.Buffer.from(Infinity) })
+ t.throws(function () { impl.Buffer.from(-Infinity) })
+ t.throws(function () { impl.Buffer.from(NaN) })
+ t.throws(function () { impl.Buffer.from(null) })
+ t.throws(function () { impl.Buffer.from(undefined) })
+ t.throws(function () { impl.Buffer.from() })
+ t.throws(function () { impl.Buffer.from({}) })
+ t.throws(function () { impl.Buffer.alloc('') })
+ t.throws(function () { impl.Buffer.alloc('string') })
+ t.throws(function () { impl.Buffer.alloc('string', 'utf-8') })
+ t.throws(function () { impl.Buffer.alloc('b25ldHdvdGhyZWU=', 'base64') })
+ t.throws(function () { impl.Buffer.alloc(-10) })
+ t.throws(function () { impl.Buffer.alloc(1e90) })
+ t.throws(function () { impl.Buffer.alloc(2 * (1 << 30)) })
+ t.throws(function () { impl.Buffer.alloc(Infinity) })
+ t.throws(function () { impl.Buffer.alloc(-Infinity) })
+ t.throws(function () { impl.Buffer.alloc(null) })
+ t.throws(function () { impl.Buffer.alloc(undefined) })
+ t.throws(function () { impl.Buffer.alloc() })
+ t.throws(function () { impl.Buffer.alloc([]) })
+ t.throws(function () { impl.Buffer.alloc([0, 42, 3]) })
+ t.throws(function () { impl.Buffer.alloc({}) })
+ });
+ ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+ t.throws(function () { dangerous.Buffer[method]('') })
+ t.throws(function () { dangerous.Buffer[method]('string') })
+ t.throws(function () { dangerous.Buffer[method]('string', 'utf-8') })
+ t.throws(function () { dangerous.Buffer[method](2 * (1 << 30)) })
+ t.throws(function () { dangerous.Buffer[method](Infinity) })
+ if (dangerous.Buffer[method] === buffer.Buffer.allocUnsafe) {
+ t.skip('Skipping, older impl of allocUnsafe coerced negative sizes to 0')
+ } else {
+ t.throws(function () { dangerous.Buffer[method](-10) })
+ t.throws(function () { dangerous.Buffer[method](-1e90) })
+ t.throws(function () { dangerous.Buffer[method](-Infinity) })
+ }
+ t.throws(function () { dangerous.Buffer[method](null) })
+ t.throws(function () { dangerous.Buffer[method](undefined) })
+ t.throws(function () { dangerous.Buffer[method]() })
+ t.throws(function () { dangerous.Buffer[method]([]) })
+ t.throws(function () { dangerous.Buffer[method]([0, 42, 3]) })
+ t.throws(function () { dangerous.Buffer[method]({}) })
+ })
+ t.end()
+})
+
+test('Buffers have appropriate lengths', function (t) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.equal(impl.Buffer.alloc(0).length, 0)
+ t.equal(impl.Buffer.alloc(10).length, 10)
+ t.equal(impl.Buffer.from('').length, 0)
+ t.equal(impl.Buffer.from('string').length, 6)
+ t.equal(impl.Buffer.from('string', 'utf-8').length, 6)
+ t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').length, 11)
+ t.equal(impl.Buffer.from([0, 42, 3]).length, 3)
+ t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).length, 3)
+ t.equal(impl.Buffer.from([]).length, 0)
+ });
+ ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+ t.equal(dangerous.Buffer[method](0).length, 0)
+ t.equal(dangerous.Buffer[method](10).length, 10)
+ })
+ t.end()
+})
+
+test('Buffers have appropriate lengths (2)', function (t) {
+ t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+ t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+ var ok = true;
+ [ safer.Buffer.alloc,
+ dangerous.Buffer.allocUnsafe,
+ dangerous.Buffer.allocUnsafeSlow
+ ].forEach(function (method) {
+ for (var i = 0; i < 1e2; i++) {
+ var length = Math.round(Math.random() * 1e5)
+ var buf = method(length)
+ if (!buffer.Buffer.isBuffer(buf)) ok = false
+ if (buf.length !== length) ok = false
+ }
+ })
+ t.ok(ok)
+ t.end()
+})
+
+test('.alloc(size) is zero-filled and has correct length', function (t) {
+ t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+ t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+ var ok = true
+ for (var i = 0; i < 1e2; i++) {
+ var length = Math.round(Math.random() * 2e6)
+ var buf = index.Buffer.alloc(length)
+ if (!buffer.Buffer.isBuffer(buf)) ok = false
+ if (buf.length !== length) ok = false
+ var j
+ for (j = 0; j < length; j++) {
+ if (buf[j] !== 0) ok = false
+ }
+ buf.fill(1)
+ for (j = 0; j < length; j++) {
+ if (buf[j] !== 1) ok = false
+ }
+ }
+ t.ok(ok)
+ t.end()
+})
+
+test('.allocUnsafe / .allocUnsafeSlow are fillable and have correct lengths', function (t) {
+ ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
+ var ok = true
+ for (var i = 0; i < 1e2; i++) {
+ var length = Math.round(Math.random() * 2e6)
+ var buf = dangerous.Buffer[method](length)
+ if (!buffer.Buffer.isBuffer(buf)) ok = false
+ if (buf.length !== length) ok = false
+ buf.fill(0, 0, length)
+ var j
+ for (j = 0; j < length; j++) {
+ if (buf[j] !== 0) ok = false
+ }
+ buf.fill(1, 0, length)
+ for (j = 0; j < length; j++) {
+ if (buf[j] !== 1) ok = false
+ }
+ }
+ t.ok(ok, method)
+ })
+ t.end()
+})
+
+test('.alloc(size, fill) is `fill`-filled', function (t) {
+ t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+ t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+ var ok = true
+ for (var i = 0; i < 1e2; i++) {
+ var length = Math.round(Math.random() * 2e6)
+ var fill = Math.round(Math.random() * 255)
+ var buf = index.Buffer.alloc(length, fill)
+ if (!buffer.Buffer.isBuffer(buf)) ok = false
+ if (buf.length !== length) ok = false
+ for (var j = 0; j < length; j++) {
+ if (buf[j] !== fill) ok = false
+ }
+ }
+ t.ok(ok)
+ t.end()
+})
+
+test('.alloc(size, fill) is `fill`-filled', function (t) {
+ t.equal(index.Buffer.alloc, safer.Buffer.alloc)
+ t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
+ var ok = true
+ for (var i = 0; i < 1e2; i++) {
+ var length = Math.round(Math.random() * 2e6)
+ var fill = Math.round(Math.random() * 255)
+ var buf = index.Buffer.alloc(length, fill)
+ if (!buffer.Buffer.isBuffer(buf)) ok = false
+ if (buf.length !== length) ok = false
+ for (var j = 0; j < length; j++) {
+ if (buf[j] !== fill) ok = false
+ }
+ }
+ t.ok(ok)
+ t.deepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 97))
+ t.notDeepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 98))
+
+ var tmp = new buffer.Buffer(2)
+ tmp.fill('ok')
+ if (tmp[1] === tmp[0]) {
+ // Outdated Node.js
+ t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('ooooo'))
+ } else {
+ t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('okoko'))
+ }
+ t.notDeepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('kokok'))
+
+ t.end()
+})
+
+test('safer.Buffer.from returns results same as Buffer constructor', function (t) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.deepEqual(impl.Buffer.from(''), new buffer.Buffer(''))
+ t.deepEqual(impl.Buffer.from('string'), new buffer.Buffer('string'))
+ t.deepEqual(impl.Buffer.from('string', 'utf-8'), new buffer.Buffer('string', 'utf-8'))
+ t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), new buffer.Buffer('b25ldHdvdGhyZWU=', 'base64'))
+ t.deepEqual(impl.Buffer.from([0, 42, 3]), new buffer.Buffer([0, 42, 3]))
+ t.deepEqual(impl.Buffer.from(new Uint8Array([0, 42, 3])), new buffer.Buffer(new Uint8Array([0, 42, 3])))
+ t.deepEqual(impl.Buffer.from([]), new buffer.Buffer([]))
+ })
+ t.end()
+})
+
+test('safer.Buffer.from returns consistent results', function (t) {
+ [index, safer, dangerous].forEach(function (impl) {
+ t.deepEqual(impl.Buffer.from(''), impl.Buffer.alloc(0))
+ t.deepEqual(impl.Buffer.from([]), impl.Buffer.alloc(0))
+ t.deepEqual(impl.Buffer.from(new Uint8Array([])), impl.Buffer.alloc(0))
+ t.deepEqual(impl.Buffer.from('string', 'utf-8'), impl.Buffer.from('string'))
+ t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from([115, 116, 114, 105, 110, 103]))
+ t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from(impl.Buffer.from('string')))
+ t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), impl.Buffer.from('onetwothree'))
+ t.notDeepEqual(impl.Buffer.from('b25ldHdvdGhyZWU='), impl.Buffer.from('onetwothree'))
+ })
+ t.end()
+})
diff --git a/homework7/project_express/node_modules/semver/CHANGELOG.md b/homework7/project_express/node_modules/semver/CHANGELOG.md
new file mode 100644
index 0000000..66304fd
--- /dev/null
+++ b/homework7/project_express/node_modules/semver/CHANGELOG.md
@@ -0,0 +1,39 @@
+# changes log
+
+## 5.7
+
+* Add `minVersion` method
+
+## 5.6
+
+* Move boolean `loose` param to an options object, with
+ backwards-compatibility protection.
+* Add ability to opt out of special prerelease version handling with
+ the `includePrerelease` option flag.
+
+## 5.5
+
+* Add version coercion capabilities
+
+## 5.4
+
+* Add intersection checking
+
+## 5.3
+
+* Add `minSatisfying` method
+
+## 5.2
+
+* Add `prerelease(v)` that returns prerelease components
+
+## 5.1
+
+* Add Backus-Naur for ranges
+* Remove excessively cute inspection methods
+
+## 5.0
+
+* Remove AMD/Browserified build artifacts
+* Fix ltr and gtr when using the `*` range
+* Fix for range `*` with a prerelease identifier
diff --git a/homework7/project_express/node_modules/semver/LICENSE b/homework7/project_express/node_modules/semver/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/homework7/project_express/node_modules/semver/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/homework7/project_express/node_modules/semver/README.md b/homework7/project_express/node_modules/semver/README.md
new file mode 100644
index 0000000..f8dfa5a
--- /dev/null
+++ b/homework7/project_express/node_modules/semver/README.md
@@ -0,0 +1,412 @@
+semver(1) -- The semantic versioner for npm
+===========================================
+
+## Install
+
+```bash
+npm install --save semver
+````
+
+## Usage
+
+As a node module:
+
+```js
+const semver = require('semver')
+
+semver.valid('1.2.3') // '1.2.3'
+semver.valid('a.b.c') // null
+semver.clean(' =v1.2.3 ') // '1.2.3'
+semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true
+semver.gt('1.2.3', '9.8.7') // false
+semver.lt('1.2.3', '9.8.7') // true
+semver.minVersion('>=1.0.0') // '1.0.0'
+semver.valid(semver.coerce('v2')) // '2.0.0'
+semver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'
+```
+
+As a command-line utility:
+
+```
+$ semver -h
+
+A JavaScript implementation of the https://semver.org/ specification
+Copyright Isaac Z. Schlueter
+
+Usage: semver [options] [ [...]]
+Prints valid versions sorted by SemVer precedence
+
+Options:
+-r --range
+ Print versions that match the specified range.
+
+-i --increment []
+ Increment a version by the specified level. Level can
+ be one of: major, minor, patch, premajor, preminor,
+ prepatch, or prerelease. Default level is 'patch'.
+ Only one version may be specified.
+
+--preid
+ Identifier to be used to prefix premajor, preminor,
+ prepatch or prerelease version increments.
+
+-l --loose
+ Interpret versions and ranges loosely
+
+-p --include-prerelease
+ Always include prerelease versions in range matching
+
+-c --coerce
+ Coerce a string into SemVer if possible
+ (does not imply --loose)
+
+Program exits successfully if any valid version satisfies
+all supplied ranges, and prints all satisfying versions.
+
+If no satisfying versions are found, then exits failure.
+
+Versions are printed in ascending order, so supplying
+multiple versions to the utility will just sort them.
+```
+
+## Versions
+
+A "version" is described by the `v2.0.0` specification found at
+.
+
+A leading `"="` or `"v"` character is stripped off and ignored.
+
+## Ranges
+
+A `version range` is a set of `comparators` which specify versions
+that satisfy the range.
+
+A `comparator` is composed of an `operator` and a `version`. The set
+of primitive `operators` is:
+
+* `<` Less than
+* `<=` Less than or equal to
+* `>` Greater than
+* `>=` Greater than or equal to
+* `=` Equal. If no operator is specified, then equality is assumed,
+ so this operator is optional, but MAY be included.
+
+For example, the comparator `>=1.2.7` would match the versions
+`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`
+or `1.1.0`.
+
+Comparators can be joined by whitespace to form a `comparator set`,
+which is satisfied by the **intersection** of all of the comparators
+it includes.
+
+A range is composed of one or more comparator sets, joined by `||`. A
+version matches a range if and only if every comparator in at least
+one of the `||`-separated comparator sets is satisfied by the version.
+
+For example, the range `>=1.2.7 <1.3.0` would match the versions
+`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,
+or `1.1.0`.
+
+The range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,
+`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.
+
+### Prerelease Tags
+
+If a version has a prerelease tag (for example, `1.2.3-alpha.3`) then
+it will only be allowed to satisfy comparator sets if at least one
+comparator with the same `[major, minor, patch]` tuple also has a
+prerelease tag.
+
+For example, the range `>1.2.3-alpha.3` would be allowed to match the
+version `1.2.3-alpha.7`, but it would *not* be satisfied by
+`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically "greater
+than" `1.2.3-alpha.3` according to the SemVer sort rules. The version
+range only accepts prerelease tags on the `1.2.3` version. The
+version `3.4.5` *would* satisfy the range, because it does not have a
+prerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.
+
+The purpose for this behavior is twofold. First, prerelease versions
+frequently are updated very quickly, and contain many breaking changes
+that are (by the author's design) not yet fit for public consumption.
+Therefore, by default, they are excluded from range matching
+semantics.
+
+Second, a user who has opted into using a prerelease version has
+clearly indicated the intent to use *that specific* set of
+alpha/beta/rc versions. By including a prerelease tag in the range,
+the user is indicating that they are aware of the risk. However, it
+is still not appropriate to assume that they have opted into taking a
+similar risk on the *next* set of prerelease versions.
+
+Note that this behavior can be suppressed (treating all prerelease
+versions as if they were normal versions, for the purpose of range
+matching) by setting the `includePrerelease` flag on the options
+object to any
+[functions](https://github.com/npm/node-semver#functions) that do
+range matching.
+
+#### Prerelease Identifiers
+
+The method `.inc` takes an additional `identifier` string argument that
+will append the value of the string as a prerelease identifier:
+
+```javascript
+semver.inc('1.2.3', 'prerelease', 'beta')
+// '1.2.4-beta.0'
+```
+
+command-line example:
+
+```bash
+$ semver 1.2.3 -i prerelease --preid beta
+1.2.4-beta.0
+```
+
+Which then can be used to increment further:
+
+```bash
+$ semver 1.2.4-beta.0 -i prerelease
+1.2.4-beta.1
+```
+
+### Advanced Range Syntax
+
+Advanced range syntax desugars to primitive comparators in
+deterministic ways.
+
+Advanced ranges may be combined in the same way as primitive
+comparators using white space or `||`.
+
+#### Hyphen Ranges `X.Y.Z - A.B.C`
+
+Specifies an inclusive set.
+
+* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`
+
+If a partial version is provided as the first version in the inclusive
+range, then the missing pieces are replaced with zeroes.
+
+* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`
+
+If a partial version is provided as the second version in the
+inclusive range, then all versions that start with the supplied parts
+of the tuple are accepted, but nothing that would be greater than the
+provided tuple parts.
+
+* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0`
+* `1.2.3 - 2` := `>=1.2.3 <3.0.0`
+
+#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`
+
+Any of `X`, `x`, or `*` may be used to "stand in" for one of the
+numeric values in the `[major, minor, patch]` tuple.
+
+* `*` := `>=0.0.0` (Any version satisfies)
+* `1.x` := `>=1.0.0 <2.0.0` (Matching major version)
+* `1.2.x` := `>=1.2.0 <1.3.0` (Matching major and minor versions)
+
+A partial version range is treated as an X-Range, so the special
+character is in fact optional.
+
+* `""` (empty string) := `*` := `>=0.0.0`
+* `1` := `1.x.x` := `>=1.0.0 <2.0.0`
+* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0`
+
+#### Tilde Ranges `~1.2.3` `~1.2` `~1`
+
+Allows patch-level changes if a minor version is specified on the
+comparator. Allows minor-level changes if not.
+
+* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0`
+* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0` (Same as `1.2.x`)
+* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0` (Same as `1.x`)
+* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0`
+* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0` (Same as `0.2.x`)
+* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0` (Same as `0.x`)
+* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0` Note that prereleases in
+ the `1.2.3` version will be allowed, if they are greater than or
+ equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but
+ `1.2.4-beta.2` would not, because it is a prerelease of a
+ different `[major, minor, patch]` tuple.
+
+#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`
+
+Allows changes that do not modify the left-most non-zero digit in the
+`[major, minor, patch]` tuple. In other words, this allows patch and
+minor updates for versions `1.0.0` and above, patch updates for
+versions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.
+
+Many authors treat a `0.x` version as if the `x` were the major
+"breaking-change" indicator.
+
+Caret ranges are ideal when an author may make breaking changes
+between `0.2.4` and `0.3.0` releases, which is a common practice.
+However, it presumes that there will *not* be breaking changes between
+`0.2.4` and `0.2.5`. It allows for changes that are presumed to be
+additive (but non-breaking), according to commonly observed practices.
+
+* `^1.2.3` := `>=1.2.3 <2.0.0`
+* `^0.2.3` := `>=0.2.3 <0.3.0`
+* `^0.0.3` := `>=0.0.3 <0.0.4`
+* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0` Note that prereleases in
+ the `1.2.3` version will be allowed, if they are greater than or
+ equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but
+ `1.2.4-beta.2` would not, because it is a prerelease of a
+ different `[major, minor, patch]` tuple.
+* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4` Note that prereleases in the
+ `0.0.3` version *only* will be allowed, if they are greater than or
+ equal to `beta`. So, `0.0.3-pr.2` would be allowed.
+
+When parsing caret ranges, a missing `patch` value desugars to the
+number `0`, but will allow flexibility within that value, even if the
+major and minor versions are both `0`.
+
+* `^1.2.x` := `>=1.2.0 <2.0.0`
+* `^0.0.x` := `>=0.0.0 <0.1.0`
+* `^0.0` := `>=0.0.0 <0.1.0`
+
+A missing `minor` and `patch` values will desugar to zero, but also
+allow flexibility within those values, even if the major version is
+zero.
+
+* `^1.x` := `>=1.0.0 <2.0.0`
+* `^0.x` := `>=0.0.0 <1.0.0`
+
+### Range Grammar
+
+Putting all this together, here is a Backus-Naur grammar for ranges,
+for the benefit of parser authors:
+
+```bnf
+range-set ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen ::= partial ' - ' partial
+simple ::= primitive | partial | tilde | caret
+primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr ::= 'x' | 'X' | '*' | nr
+nr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *
+tilde ::= '~' partial
+caret ::= '^' partial
+qualifier ::= ( '-' pre )? ( '+' build )?
+pre ::= parts
+build ::= parts
+parts ::= part ( '.' part ) *
+part ::= nr | [-0-9A-Za-z]+
+```
+
+## Functions
+
+All methods and classes take a final `options` object argument. All
+options in this object are `false` by default. The options supported
+are:
+
+- `loose` Be more forgiving about not-quite-valid semver strings.
+ (Any resulting output will always be 100% strict compliant, of
+ course.) For backwards compatibility reasons, if the `options`
+ argument is a boolean value instead of an object, it is interpreted
+ to be the `loose` param.
+- `includePrerelease` Set to suppress the [default
+ behavior](https://github.com/npm/node-semver#prerelease-tags) of
+ excluding prerelease tagged versions from ranges unless they are
+ explicitly opted into.
+
+Strict-mode Comparators and Ranges will be strict about the SemVer
+strings that they parse.
+
+* `valid(v)`: Return the parsed version, or null if it's not valid.
+* `inc(v, release)`: Return the version incremented by the release
+ type (`major`, `premajor`, `minor`, `preminor`, `patch`,
+ `prepatch`, or `prerelease`), or null if it's not valid
+ * `premajor` in one call will bump the version up to the next major
+ version and down to a prerelease of that major version.
+ `preminor`, and `prepatch` work the same way.
+ * If called from a non-prerelease version, the `prerelease` will work the
+ same as `prepatch`. It increments the patch version, then makes a
+ prerelease. If the input version is already a prerelease it simply
+ increments it.
+* `prerelease(v)`: Returns an array of prerelease components, or null
+ if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`
+* `major(v)`: Return the major version number.
+* `minor(v)`: Return the minor version number.
+* `patch(v)`: Return the patch version number.
+* `intersects(r1, r2, loose)`: Return true if the two supplied ranges
+ or comparators intersect.
+* `parse(v)`: Attempt to parse a string as a semantic version, returning either
+ a `SemVer` object or `null`.
+
+### Comparison
+
+* `gt(v1, v2)`: `v1 > v2`
+* `gte(v1, v2)`: `v1 >= v2`
+* `lt(v1, v2)`: `v1 < v2`
+* `lte(v1, v2)`: `v1 <= v2`
+* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,
+ even if they're not the exact same string. You already know how to
+ compare strings.
+* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.
+* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call
+ the corresponding function above. `"==="` and `"!=="` do simple
+ string comparison, but are included for completeness. Throws if an
+ invalid comparison string is provided.
+* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if
+ `v2` is greater. Sorts in ascending order if passed to `Array.sort()`.
+* `rcompare(v1, v2)`: The reverse of compare. Sorts an array of versions
+ in descending order when passed to `Array.sort()`.
+* `diff(v1, v2)`: Returns difference between two versions by the release type
+ (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),
+ or null if the versions are the same.
+
+### Comparators
+
+* `intersects(comparator)`: Return true if the comparators intersect
+
+### Ranges
+
+* `validRange(range)`: Return the valid range or null if it's not valid
+* `satisfies(version, range)`: Return true if the version satisfies the
+ range.
+* `maxSatisfying(versions, range)`: Return the highest version in the list
+ that satisfies the range, or `null` if none of them do.
+* `minSatisfying(versions, range)`: Return the lowest version in the list
+ that satisfies the range, or `null` if none of them do.
+* `minVersion(range)`: Return the lowest version that can possibly match
+ the given range.
+* `gtr(version, range)`: Return `true` if version is greater than all the
+ versions possible in the range.
+* `ltr(version, range)`: Return `true` if version is less than all the
+ versions possible in the range.
+* `outside(version, range, hilo)`: Return true if the version is outside
+ the bounds of the range in either the high or low direction. The
+ `hilo` argument must be either the string `'>'` or `'<'`. (This is
+ the function called by `gtr` and `ltr`.)
+* `intersects(range)`: Return true if any of the ranges comparators intersect
+
+Note that, since ranges may be non-contiguous, a version might not be
+greater than a range, less than a range, *or* satisfy a range! For
+example, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`
+until `2.0.0`, so the version `1.2.10` would not be greater than the
+range (because `2.0.1` satisfies, which is higher), nor less than the
+range (since `1.2.8` satisfies, which is lower), and it also does not
+satisfy the range.
+
+If you want to know if a version satisfies or does not satisfy a
+range, use the `satisfies(version, range)` function.
+
+### Coercion
+
+* `coerce(version)`: Coerces a string to semver if possible
+
+This aims to provide a very forgiving translation of a non-semver string to
+semver. It looks for the first digit in a string, and consumes all
+remaining characters which satisfy at least a partial semver (e.g., `1`,
+`1.2`, `1.2.3`) up to the max permitted length (256 characters). Longer
+versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`). All
+surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes
+`3.4.0`). Only text which lacks digits will fail coercion (`version one`
+is not valid). The maximum length for any semver component considered for
+coercion is 16 characters; longer components will be ignored
+(`10000000000000000.4.7.4` becomes `4.7.4`). The maximum value for any
+semver component is `Number.MAX_SAFE_INTEGER || (2**53 - 1)`; higher value
+components are invalid (`9999999999999999.4.7.4` is likely invalid).
diff --git a/homework7/project_express/node_modules/semver/bin/semver b/homework7/project_express/node_modules/semver/bin/semver
new file mode 100644
index 0000000..801e77f
--- /dev/null
+++ b/homework7/project_express/node_modules/semver/bin/semver
@@ -0,0 +1,160 @@
+#!/usr/bin/env node
+// Standalone semver comparison program.
+// Exits successfully and prints matching version(s) if
+// any supplied version is valid and passes all tests.
+
+var argv = process.argv.slice(2)
+
+var versions = []
+
+var range = []
+
+var inc = null
+
+var version = require('../package.json').version
+
+var loose = false
+
+var includePrerelease = false
+
+var coerce = false
+
+var identifier
+
+var semver = require('../semver')
+
+var reverse = false
+
+var options = {}
+
+main()
+
+function main () {
+ if (!argv.length) return help()
+ while (argv.length) {
+ var a = argv.shift()
+ var indexOfEqualSign = a.indexOf('=')
+ if (indexOfEqualSign !== -1) {
+ a = a.slice(0, indexOfEqualSign)
+ argv.unshift(a.slice(indexOfEqualSign + 1))
+ }
+ switch (a) {
+ case '-rv': case '-rev': case '--rev': case '--reverse':
+ reverse = true
+ break
+ case '-l': case '--loose':
+ loose = true
+ break
+ case '-p': case '--include-prerelease':
+ includePrerelease = true
+ break
+ case '-v': case '--version':
+ versions.push(argv.shift())
+ break
+ case '-i': case '--inc': case '--increment':
+ switch (argv[0]) {
+ case 'major': case 'minor': case 'patch': case 'prerelease':
+ case 'premajor': case 'preminor': case 'prepatch':
+ inc = argv.shift()
+ break
+ default:
+ inc = 'patch'
+ break
+ }
+ break
+ case '--preid':
+ identifier = argv.shift()
+ break
+ case '-r': case '--range':
+ range.push(argv.shift())
+ break
+ case '-c': case '--coerce':
+ coerce = true
+ break
+ case '-h': case '--help': case '-?':
+ return help()
+ default:
+ versions.push(a)
+ break
+ }
+ }
+
+ var options = { loose: loose, includePrerelease: includePrerelease }
+
+ versions = versions.map(function (v) {
+ return coerce ? (semver.coerce(v) || { version: v }).version : v
+ }).filter(function (v) {
+ return semver.valid(v)
+ })
+ if (!versions.length) return fail()
+ if (inc && (versions.length !== 1 || range.length)) { return failInc() }
+
+ for (var i = 0, l = range.length; i < l; i++) {
+ versions = versions.filter(function (v) {
+ return semver.satisfies(v, range[i], options)
+ })
+ if (!versions.length) return fail()
+ }
+ return success(versions)
+}
+
+function failInc () {
+ console.error('--inc can only be used on a single version with no range')
+ fail()
+}
+
+function fail () { process.exit(1) }
+
+function success () {
+ var compare = reverse ? 'rcompare' : 'compare'
+ versions.sort(function (a, b) {
+ return semver[compare](a, b, options)
+ }).map(function (v) {
+ return semver.clean(v, options)
+ }).map(function (v) {
+ return inc ? semver.inc(v, inc, options, identifier) : v
+ }).forEach(function (v, i, _) { console.log(v) })
+}
+
+function help () {
+ console.log(['SemVer ' + version,
+ '',
+ 'A JavaScript implementation of the https://semver.org/ specification',
+ 'Copyright Isaac Z. Schlueter',
+ '',
+ 'Usage: semver [options] [ [...]]',
+ 'Prints valid versions sorted by SemVer precedence',
+ '',
+ 'Options:',
+ '-r --range ',
+ ' Print versions that match the specified range.',
+ '',
+ '-i --increment []',
+ ' Increment a version by the specified level. Level can',
+ ' be one of: major, minor, patch, premajor, preminor,',
+ " prepatch, or prerelease. Default level is 'patch'.",
+ ' Only one version may be specified.',
+ '',
+ '--preid ',
+ ' Identifier to be used to prefix premajor, preminor,',
+ ' prepatch or prerelease version increments.',
+ '',
+ '-l --loose',
+ ' Interpret versions and ranges loosely',
+ '',
+ '-p --include-prerelease',
+ ' Always include prerelease versions in range matching',
+ '',
+ '-c --coerce',
+ ' Coerce a string into SemVer if possible',
+ ' (does not imply --loose)',
+ '',
+ 'Program exits successfully if any valid version satisfies',
+ 'all supplied ranges, and prints all satisfying versions.',
+ '',
+ 'If no satisfying versions are found, then exits failure.',
+ '',
+ 'Versions are printed in ascending order, so supplying',
+ 'multiple versions to the utility will just sort them.'
+ ].join('\n'))
+}
diff --git a/homework7/project_express/node_modules/semver/package.json b/homework7/project_express/node_modules/semver/package.json
new file mode 100644
index 0000000..69d2db1
--- /dev/null
+++ b/homework7/project_express/node_modules/semver/package.json
@@ -0,0 +1,28 @@
+{
+ "name": "semver",
+ "version": "5.7.1",
+ "description": "The semantic version parser used by npm.",
+ "main": "semver.js",
+ "scripts": {
+ "test": "tap",
+ "preversion": "npm test",
+ "postversion": "npm publish",
+ "postpublish": "git push origin --all; git push origin --tags"
+ },
+ "devDependencies": {
+ "tap": "^13.0.0-rc.18"
+ },
+ "license": "ISC",
+ "repository": "https://github.com/npm/node-semver",
+ "bin": {
+ "semver": "./bin/semver"
+ },
+ "files": [
+ "bin",
+ "range.bnf",
+ "semver.js"
+ ],
+ "tap": {
+ "check-coverage": true
+ }
+}
diff --git a/homework7/project_express/node_modules/semver/range.bnf b/homework7/project_express/node_modules/semver/range.bnf
new file mode 100644
index 0000000..d4c6ae0
--- /dev/null
+++ b/homework7/project_express/node_modules/semver/range.bnf
@@ -0,0 +1,16 @@
+range-set ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen ::= partial ' - ' partial
+simple ::= primitive | partial | tilde | caret
+primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr ::= 'x' | 'X' | '*' | nr
+nr ::= '0' | [1-9] ( [0-9] ) *
+tilde ::= '~' partial
+caret ::= '^' partial
+qualifier ::= ( '-' pre )? ( '+' build )?
+pre ::= parts
+build ::= parts
+parts ::= part ( '.' part ) *
+part ::= nr | [-0-9A-Za-z]+
diff --git a/homework7/project_express/node_modules/semver/semver.js b/homework7/project_express/node_modules/semver/semver.js
new file mode 100644
index 0000000..d315d5d
--- /dev/null
+++ b/homework7/project_express/node_modules/semver/semver.js
@@ -0,0 +1,1483 @@
+exports = module.exports = SemVer
+
+var debug
+/* istanbul ignore next */
+if (typeof process === 'object' &&
+ process.env &&
+ process.env.NODE_DEBUG &&
+ /\bsemver\b/i.test(process.env.NODE_DEBUG)) {
+ debug = function () {
+ var args = Array.prototype.slice.call(arguments, 0)
+ args.unshift('SEMVER')
+ console.log.apply(console, args)
+ }
+} else {
+ debug = function () {}
+}
+
+// Note: this is the semver.org version of the spec that it implements
+// Not necessarily the package version of this code.
+exports.SEMVER_SPEC_VERSION = '2.0.0'
+
+var MAX_LENGTH = 256
+var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER ||
+ /* istanbul ignore next */ 9007199254740991
+
+// Max safe segment length for coercion.
+var MAX_SAFE_COMPONENT_LENGTH = 16
+
+// The actual regexps go on exports.re
+var re = exports.re = []
+var src = exports.src = []
+var R = 0
+
+// The following Regular Expressions can be used for tokenizing,
+// validating, and parsing SemVer version strings.
+
+// ## Numeric Identifier
+// A single `0`, or a non-zero digit followed by zero or more digits.
+
+var NUMERICIDENTIFIER = R++
+src[NUMERICIDENTIFIER] = '0|[1-9]\\d*'
+var NUMERICIDENTIFIERLOOSE = R++
+src[NUMERICIDENTIFIERLOOSE] = '[0-9]+'
+
+// ## Non-numeric Identifier
+// Zero or more digits, followed by a letter or hyphen, and then zero or
+// more letters, digits, or hyphens.
+
+var NONNUMERICIDENTIFIER = R++
+src[NONNUMERICIDENTIFIER] = '\\d*[a-zA-Z-][a-zA-Z0-9-]*'
+
+// ## Main Version
+// Three dot-separated numeric identifiers.
+
+var MAINVERSION = R++
+src[MAINVERSION] = '(' + src[NUMERICIDENTIFIER] + ')\\.' +
+ '(' + src[NUMERICIDENTIFIER] + ')\\.' +
+ '(' + src[NUMERICIDENTIFIER] + ')'
+
+var MAINVERSIONLOOSE = R++
+src[MAINVERSIONLOOSE] = '(' + src[NUMERICIDENTIFIERLOOSE] + ')\\.' +
+ '(' + src[NUMERICIDENTIFIERLOOSE] + ')\\.' +
+ '(' + src[NUMERICIDENTIFIERLOOSE] + ')'
+
+// ## Pre-release Version Identifier
+// A numeric identifier, or a non-numeric identifier.
+
+var PRERELEASEIDENTIFIER = R++
+src[PRERELEASEIDENTIFIER] = '(?:' + src[NUMERICIDENTIFIER] +
+ '|' + src[NONNUMERICIDENTIFIER] + ')'
+
+var PRERELEASEIDENTIFIERLOOSE = R++
+src[PRERELEASEIDENTIFIERLOOSE] = '(?:' + src[NUMERICIDENTIFIERLOOSE] +
+ '|' + src[NONNUMERICIDENTIFIER] + ')'
+
+// ## Pre-release Version
+// Hyphen, followed by one or more dot-separated pre-release version
+// identifiers.
+
+var PRERELEASE = R++
+src[PRERELEASE] = '(?:-(' + src[PRERELEASEIDENTIFIER] +
+ '(?:\\.' + src[PRERELEASEIDENTIFIER] + ')*))'
+
+var PRERELEASELOOSE = R++
+src[PRERELEASELOOSE] = '(?:-?(' + src[PRERELEASEIDENTIFIERLOOSE] +
+ '(?:\\.' + src[PRERELEASEIDENTIFIERLOOSE] + ')*))'
+
+// ## Build Metadata Identifier
+// Any combination of digits, letters, or hyphens.
+
+var BUILDIDENTIFIER = R++
+src[BUILDIDENTIFIER] = '[0-9A-Za-z-]+'
+
+// ## Build Metadata
+// Plus sign, followed by one or more period-separated build metadata
+// identifiers.
+
+var BUILD = R++
+src[BUILD] = '(?:\\+(' + src[BUILDIDENTIFIER] +
+ '(?:\\.' + src[BUILDIDENTIFIER] + ')*))'
+
+// ## Full Version String
+// A main version, followed optionally by a pre-release version and
+// build metadata.
+
+// Note that the only major, minor, patch, and pre-release sections of
+// the version string are capturing groups. The build metadata is not a
+// capturing group, because it should not ever be used in version
+// comparison.
+
+var FULL = R++
+var FULLPLAIN = 'v?' + src[MAINVERSION] +
+ src[PRERELEASE] + '?' +
+ src[BUILD] + '?'
+
+src[FULL] = '^' + FULLPLAIN + '$'
+
+// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
+// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
+// common in the npm registry.
+var LOOSEPLAIN = '[v=\\s]*' + src[MAINVERSIONLOOSE] +
+ src[PRERELEASELOOSE] + '?' +
+ src[BUILD] + '?'
+
+var LOOSE = R++
+src[LOOSE] = '^' + LOOSEPLAIN + '$'
+
+var GTLT = R++
+src[GTLT] = '((?:<|>)?=?)'
+
+// Something like "2.*" or "1.2.x".
+// Note that "x.x" is a valid xRange identifer, meaning "any version"
+// Only the first item is strictly required.
+var XRANGEIDENTIFIERLOOSE = R++
+src[XRANGEIDENTIFIERLOOSE] = src[NUMERICIDENTIFIERLOOSE] + '|x|X|\\*'
+var XRANGEIDENTIFIER = R++
+src[XRANGEIDENTIFIER] = src[NUMERICIDENTIFIER] + '|x|X|\\*'
+
+var XRANGEPLAIN = R++
+src[XRANGEPLAIN] = '[v=\\s]*(' + src[XRANGEIDENTIFIER] + ')' +
+ '(?:\\.(' + src[XRANGEIDENTIFIER] + ')' +
+ '(?:\\.(' + src[XRANGEIDENTIFIER] + ')' +
+ '(?:' + src[PRERELEASE] + ')?' +
+ src[BUILD] + '?' +
+ ')?)?'
+
+var XRANGEPLAINLOOSE = R++
+src[XRANGEPLAINLOOSE] = '[v=\\s]*(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
+ '(?:\\.(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
+ '(?:\\.(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
+ '(?:' + src[PRERELEASELOOSE] + ')?' +
+ src[BUILD] + '?' +
+ ')?)?'
+
+var XRANGE = R++
+src[XRANGE] = '^' + src[GTLT] + '\\s*' + src[XRANGEPLAIN] + '$'
+var XRANGELOOSE = R++
+src[XRANGELOOSE] = '^' + src[GTLT] + '\\s*' + src[XRANGEPLAINLOOSE] + '$'
+
+// Coercion.
+// Extract anything that could conceivably be a part of a valid semver
+var COERCE = R++
+src[COERCE] = '(?:^|[^\\d])' +
+ '(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '})' +
+ '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
+ '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
+ '(?:$|[^\\d])'
+
+// Tilde ranges.
+// Meaning is "reasonably at or greater than"
+var LONETILDE = R++
+src[LONETILDE] = '(?:~>?)'
+
+var TILDETRIM = R++
+src[TILDETRIM] = '(\\s*)' + src[LONETILDE] + '\\s+'
+re[TILDETRIM] = new RegExp(src[TILDETRIM], 'g')
+var tildeTrimReplace = '$1~'
+
+var TILDE = R++
+src[TILDE] = '^' + src[LONETILDE] + src[XRANGEPLAIN] + '$'
+var TILDELOOSE = R++
+src[TILDELOOSE] = '^' + src[LONETILDE] + src[XRANGEPLAINLOOSE] + '$'
+
+// Caret ranges.
+// Meaning is "at least and backwards compatible with"
+var LONECARET = R++
+src[LONECARET] = '(?:\\^)'
+
+var CARETTRIM = R++
+src[CARETTRIM] = '(\\s*)' + src[LONECARET] + '\\s+'
+re[CARETTRIM] = new RegExp(src[CARETTRIM], 'g')
+var caretTrimReplace = '$1^'
+
+var CARET = R++
+src[CARET] = '^' + src[LONECARET] + src[XRANGEPLAIN] + '$'
+var CARETLOOSE = R++
+src[CARETLOOSE] = '^' + src[LONECARET] + src[XRANGEPLAINLOOSE] + '$'
+
+// A simple gt/lt/eq thing, or just "" to indicate "any version"
+var COMPARATORLOOSE = R++
+src[COMPARATORLOOSE] = '^' + src[GTLT] + '\\s*(' + LOOSEPLAIN + ')$|^$'
+var COMPARATOR = R++
+src[COMPARATOR] = '^' + src[GTLT] + '\\s*(' + FULLPLAIN + ')$|^$'
+
+// An expression to strip any whitespace between the gtlt and the thing
+// it modifies, so that `> 1.2.3` ==> `>1.2.3`
+var COMPARATORTRIM = R++
+src[COMPARATORTRIM] = '(\\s*)' + src[GTLT] +
+ '\\s*(' + LOOSEPLAIN + '|' + src[XRANGEPLAIN] + ')'
+
+// this one has to use the /g flag
+re[COMPARATORTRIM] = new RegExp(src[COMPARATORTRIM], 'g')
+var comparatorTrimReplace = '$1$2$3'
+
+// Something like `1.2.3 - 1.2.4`
+// Note that these all use the loose form, because they'll be
+// checked against either the strict or loose comparator form
+// later.
+var HYPHENRANGE = R++
+src[HYPHENRANGE] = '^\\s*(' + src[XRANGEPLAIN] + ')' +
+ '\\s+-\\s+' +
+ '(' + src[XRANGEPLAIN] + ')' +
+ '\\s*$'
+
+var HYPHENRANGELOOSE = R++
+src[HYPHENRANGELOOSE] = '^\\s*(' + src[XRANGEPLAINLOOSE] + ')' +
+ '\\s+-\\s+' +
+ '(' + src[XRANGEPLAINLOOSE] + ')' +
+ '\\s*$'
+
+// Star ranges basically just allow anything at all.
+var STAR = R++
+src[STAR] = '(<|>)?=?\\s*\\*'
+
+// Compile to actual regexp objects.
+// All are flag-free, unless they were created above with a flag.
+for (var i = 0; i < R; i++) {
+ debug(i, src[i])
+ if (!re[i]) {
+ re[i] = new RegExp(src[i])
+ }
+}
+
+exports.parse = parse
+function parse (version, options) {
+ if (!options || typeof options !== 'object') {
+ options = {
+ loose: !!options,
+ includePrerelease: false
+ }
+ }
+
+ if (version instanceof SemVer) {
+ return version
+ }
+
+ if (typeof version !== 'string') {
+ return null
+ }
+
+ if (version.length > MAX_LENGTH) {
+ return null
+ }
+
+ var r = options.loose ? re[LOOSE] : re[FULL]
+ if (!r.test(version)) {
+ return null
+ }
+
+ try {
+ return new SemVer(version, options)
+ } catch (er) {
+ return null
+ }
+}
+
+exports.valid = valid
+function valid (version, options) {
+ var v = parse(version, options)
+ return v ? v.version : null
+}
+
+exports.clean = clean
+function clean (version, options) {
+ var s = parse(version.trim().replace(/^[=v]+/, ''), options)
+ return s ? s.version : null
+}
+
+exports.SemVer = SemVer
+
+function SemVer (version, options) {
+ if (!options || typeof options !== 'object') {
+ options = {
+ loose: !!options,
+ includePrerelease: false
+ }
+ }
+ if (version instanceof SemVer) {
+ if (version.loose === options.loose) {
+ return version
+ } else {
+ version = version.version
+ }
+ } else if (typeof version !== 'string') {
+ throw new TypeError('Invalid Version: ' + version)
+ }
+
+ if (version.length > MAX_LENGTH) {
+ throw new TypeError('version is longer than ' + MAX_LENGTH + ' characters')
+ }
+
+ if (!(this instanceof SemVer)) {
+ return new SemVer(version, options)
+ }
+
+ debug('SemVer', version, options)
+ this.options = options
+ this.loose = !!options.loose
+
+ var m = version.trim().match(options.loose ? re[LOOSE] : re[FULL])
+
+ if (!m) {
+ throw new TypeError('Invalid Version: ' + version)
+ }
+
+ this.raw = version
+
+ // these are actually numbers
+ this.major = +m[1]
+ this.minor = +m[2]
+ this.patch = +m[3]
+
+ if (this.major > MAX_SAFE_INTEGER || this.major < 0) {
+ throw new TypeError('Invalid major version')
+ }
+
+ if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {
+ throw new TypeError('Invalid minor version')
+ }
+
+ if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {
+ throw new TypeError('Invalid patch version')
+ }
+
+ // numberify any prerelease numeric ids
+ if (!m[4]) {
+ this.prerelease = []
+ } else {
+ this.prerelease = m[4].split('.').map(function (id) {
+ if (/^[0-9]+$/.test(id)) {
+ var num = +id
+ if (num >= 0 && num < MAX_SAFE_INTEGER) {
+ return num
+ }
+ }
+ return id
+ })
+ }
+
+ this.build = m[5] ? m[5].split('.') : []
+ this.format()
+}
+
+SemVer.prototype.format = function () {
+ this.version = this.major + '.' + this.minor + '.' + this.patch
+ if (this.prerelease.length) {
+ this.version += '-' + this.prerelease.join('.')
+ }
+ return this.version
+}
+
+SemVer.prototype.toString = function () {
+ return this.version
+}
+
+SemVer.prototype.compare = function (other) {
+ debug('SemVer.compare', this.version, this.options, other)
+ if (!(other instanceof SemVer)) {
+ other = new SemVer(other, this.options)
+ }
+
+ return this.compareMain(other) || this.comparePre(other)
+}
+
+SemVer.prototype.compareMain = function (other) {
+ if (!(other instanceof SemVer)) {
+ other = new SemVer(other, this.options)
+ }
+
+ return compareIdentifiers(this.major, other.major) ||
+ compareIdentifiers(this.minor, other.minor) ||
+ compareIdentifiers(this.patch, other.patch)
+}
+
+SemVer.prototype.comparePre = function (other) {
+ if (!(other instanceof SemVer)) {
+ other = new SemVer(other, this.options)
+ }
+
+ // NOT having a prerelease is > having one
+ if (this.prerelease.length && !other.prerelease.length) {
+ return -1
+ } else if (!this.prerelease.length && other.prerelease.length) {
+ return 1
+ } else if (!this.prerelease.length && !other.prerelease.length) {
+ return 0
+ }
+
+ var i = 0
+ do {
+ var a = this.prerelease[i]
+ var b = other.prerelease[i]
+ debug('prerelease compare', i, a, b)
+ if (a === undefined && b === undefined) {
+ return 0
+ } else if (b === undefined) {
+ return 1
+ } else if (a === undefined) {
+ return -1
+ } else if (a === b) {
+ continue
+ } else {
+ return compareIdentifiers(a, b)
+ }
+ } while (++i)
+}
+
+// preminor will bump the version up to the next minor release, and immediately
+// down to pre-release. premajor and prepatch work the same way.
+SemVer.prototype.inc = function (release, identifier) {
+ switch (release) {
+ case 'premajor':
+ this.prerelease.length = 0
+ this.patch = 0
+ this.minor = 0
+ this.major++
+ this.inc('pre', identifier)
+ break
+ case 'preminor':
+ this.prerelease.length = 0
+ this.patch = 0
+ this.minor++
+ this.inc('pre', identifier)
+ break
+ case 'prepatch':
+ // If this is already a prerelease, it will bump to the next version
+ // drop any prereleases that might already exist, since they are not
+ // relevant at this point.
+ this.prerelease.length = 0
+ this.inc('patch', identifier)
+ this.inc('pre', identifier)
+ break
+ // If the input is a non-prerelease version, this acts the same as
+ // prepatch.
+ case 'prerelease':
+ if (this.prerelease.length === 0) {
+ this.inc('patch', identifier)
+ }
+ this.inc('pre', identifier)
+ break
+
+ case 'major':
+ // If this is a pre-major version, bump up to the same major version.
+ // Otherwise increment major.
+ // 1.0.0-5 bumps to 1.0.0
+ // 1.1.0 bumps to 2.0.0
+ if (this.minor !== 0 ||
+ this.patch !== 0 ||
+ this.prerelease.length === 0) {
+ this.major++
+ }
+ this.minor = 0
+ this.patch = 0
+ this.prerelease = []
+ break
+ case 'minor':
+ // If this is a pre-minor version, bump up to the same minor version.
+ // Otherwise increment minor.
+ // 1.2.0-5 bumps to 1.2.0
+ // 1.2.1 bumps to 1.3.0
+ if (this.patch !== 0 || this.prerelease.length === 0) {
+ this.minor++
+ }
+ this.patch = 0
+ this.prerelease = []
+ break
+ case 'patch':
+ // If this is not a pre-release version, it will increment the patch.
+ // If it is a pre-release it will bump up to the same patch version.
+ // 1.2.0-5 patches to 1.2.0
+ // 1.2.0 patches to 1.2.1
+ if (this.prerelease.length === 0) {
+ this.patch++
+ }
+ this.prerelease = []
+ break
+ // This probably shouldn't be used publicly.
+ // 1.0.0 "pre" would become 1.0.0-0 which is the wrong direction.
+ case 'pre':
+ if (this.prerelease.length === 0) {
+ this.prerelease = [0]
+ } else {
+ var i = this.prerelease.length
+ while (--i >= 0) {
+ if (typeof this.prerelease[i] === 'number') {
+ this.prerelease[i]++
+ i = -2
+ }
+ }
+ if (i === -1) {
+ // didn't increment anything
+ this.prerelease.push(0)
+ }
+ }
+ if (identifier) {
+ // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
+ // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
+ if (this.prerelease[0] === identifier) {
+ if (isNaN(this.prerelease[1])) {
+ this.prerelease = [identifier, 0]
+ }
+ } else {
+ this.prerelease = [identifier, 0]
+ }
+ }
+ break
+
+ default:
+ throw new Error('invalid increment argument: ' + release)
+ }
+ this.format()
+ this.raw = this.version
+ return this
+}
+
+exports.inc = inc
+function inc (version, release, loose, identifier) {
+ if (typeof (loose) === 'string') {
+ identifier = loose
+ loose = undefined
+ }
+
+ try {
+ return new SemVer(version, loose).inc(release, identifier).version
+ } catch (er) {
+ return null
+ }
+}
+
+exports.diff = diff
+function diff (version1, version2) {
+ if (eq(version1, version2)) {
+ return null
+ } else {
+ var v1 = parse(version1)
+ var v2 = parse(version2)
+ var prefix = ''
+ if (v1.prerelease.length || v2.prerelease.length) {
+ prefix = 'pre'
+ var defaultResult = 'prerelease'
+ }
+ for (var key in v1) {
+ if (key === 'major' || key === 'minor' || key === 'patch') {
+ if (v1[key] !== v2[key]) {
+ return prefix + key
+ }
+ }
+ }
+ return defaultResult // may be undefined
+ }
+}
+
+exports.compareIdentifiers = compareIdentifiers
+
+var numeric = /^[0-9]+$/
+function compareIdentifiers (a, b) {
+ var anum = numeric.test(a)
+ var bnum = numeric.test(b)
+
+ if (anum && bnum) {
+ a = +a
+ b = +b
+ }
+
+ return a === b ? 0
+ : (anum && !bnum) ? -1
+ : (bnum && !anum) ? 1
+ : a < b ? -1
+ : 1
+}
+
+exports.rcompareIdentifiers = rcompareIdentifiers
+function rcompareIdentifiers (a, b) {
+ return compareIdentifiers(b, a)
+}
+
+exports.major = major
+function major (a, loose) {
+ return new SemVer(a, loose).major
+}
+
+exports.minor = minor
+function minor (a, loose) {
+ return new SemVer(a, loose).minor
+}
+
+exports.patch = patch
+function patch (a, loose) {
+ return new SemVer(a, loose).patch
+}
+
+exports.compare = compare
+function compare (a, b, loose) {
+ return new SemVer(a, loose).compare(new SemVer(b, loose))
+}
+
+exports.compareLoose = compareLoose
+function compareLoose (a, b) {
+ return compare(a, b, true)
+}
+
+exports.rcompare = rcompare
+function rcompare (a, b, loose) {
+ return compare(b, a, loose)
+}
+
+exports.sort = sort
+function sort (list, loose) {
+ return list.sort(function (a, b) {
+ return exports.compare(a, b, loose)
+ })
+}
+
+exports.rsort = rsort
+function rsort (list, loose) {
+ return list.sort(function (a, b) {
+ return exports.rcompare(a, b, loose)
+ })
+}
+
+exports.gt = gt
+function gt (a, b, loose) {
+ return compare(a, b, loose) > 0
+}
+
+exports.lt = lt
+function lt (a, b, loose) {
+ return compare(a, b, loose) < 0
+}
+
+exports.eq = eq
+function eq (a, b, loose) {
+ return compare(a, b, loose) === 0
+}
+
+exports.neq = neq
+function neq (a, b, loose) {
+ return compare(a, b, loose) !== 0
+}
+
+exports.gte = gte
+function gte (a, b, loose) {
+ return compare(a, b, loose) >= 0
+}
+
+exports.lte = lte
+function lte (a, b, loose) {
+ return compare(a, b, loose) <= 0
+}
+
+exports.cmp = cmp
+function cmp (a, op, b, loose) {
+ switch (op) {
+ case '===':
+ if (typeof a === 'object')
+ a = a.version
+ if (typeof b === 'object')
+ b = b.version
+ return a === b
+
+ case '!==':
+ if (typeof a === 'object')
+ a = a.version
+ if (typeof b === 'object')
+ b = b.version
+ return a !== b
+
+ case '':
+ case '=':
+ case '==':
+ return eq(a, b, loose)
+
+ case '!=':
+ return neq(a, b, loose)
+
+ case '>':
+ return gt(a, b, loose)
+
+ case '>=':
+ return gte(a, b, loose)
+
+ case '<':
+ return lt(a, b, loose)
+
+ case '<=':
+ return lte(a, b, loose)
+
+ default:
+ throw new TypeError('Invalid operator: ' + op)
+ }
+}
+
+exports.Comparator = Comparator
+function Comparator (comp, options) {
+ if (!options || typeof options !== 'object') {
+ options = {
+ loose: !!options,
+ includePrerelease: false
+ }
+ }
+
+ if (comp instanceof Comparator) {
+ if (comp.loose === !!options.loose) {
+ return comp
+ } else {
+ comp = comp.value
+ }
+ }
+
+ if (!(this instanceof Comparator)) {
+ return new Comparator(comp, options)
+ }
+
+ debug('comparator', comp, options)
+ this.options = options
+ this.loose = !!options.loose
+ this.parse(comp)
+
+ if (this.semver === ANY) {
+ this.value = ''
+ } else {
+ this.value = this.operator + this.semver.version
+ }
+
+ debug('comp', this)
+}
+
+var ANY = {}
+Comparator.prototype.parse = function (comp) {
+ var r = this.options.loose ? re[COMPARATORLOOSE] : re[COMPARATOR]
+ var m = comp.match(r)
+
+ if (!m) {
+ throw new TypeError('Invalid comparator: ' + comp)
+ }
+
+ this.operator = m[1]
+ if (this.operator === '=') {
+ this.operator = ''
+ }
+
+ // if it literally is just '>' or '' then allow anything.
+ if (!m[2]) {
+ this.semver = ANY
+ } else {
+ this.semver = new SemVer(m[2], this.options.loose)
+ }
+}
+
+Comparator.prototype.toString = function () {
+ return this.value
+}
+
+Comparator.prototype.test = function (version) {
+ debug('Comparator.test', version, this.options.loose)
+
+ if (this.semver === ANY) {
+ return true
+ }
+
+ if (typeof version === 'string') {
+ version = new SemVer(version, this.options)
+ }
+
+ return cmp(version, this.operator, this.semver, this.options)
+}
+
+Comparator.prototype.intersects = function (comp, options) {
+ if (!(comp instanceof Comparator)) {
+ throw new TypeError('a Comparator is required')
+ }
+
+ if (!options || typeof options !== 'object') {
+ options = {
+ loose: !!options,
+ includePrerelease: false
+ }
+ }
+
+ var rangeTmp
+
+ if (this.operator === '') {
+ rangeTmp = new Range(comp.value, options)
+ return satisfies(this.value, rangeTmp, options)
+ } else if (comp.operator === '') {
+ rangeTmp = new Range(this.value, options)
+ return satisfies(comp.semver, rangeTmp, options)
+ }
+
+ var sameDirectionIncreasing =
+ (this.operator === '>=' || this.operator === '>') &&
+ (comp.operator === '>=' || comp.operator === '>')
+ var sameDirectionDecreasing =
+ (this.operator === '<=' || this.operator === '<') &&
+ (comp.operator === '<=' || comp.operator === '<')
+ var sameSemVer = this.semver.version === comp.semver.version
+ var differentDirectionsInclusive =
+ (this.operator === '>=' || this.operator === '<=') &&
+ (comp.operator === '>=' || comp.operator === '<=')
+ var oppositeDirectionsLessThan =
+ cmp(this.semver, '<', comp.semver, options) &&
+ ((this.operator === '>=' || this.operator === '>') &&
+ (comp.operator === '<=' || comp.operator === '<'))
+ var oppositeDirectionsGreaterThan =
+ cmp(this.semver, '>', comp.semver, options) &&
+ ((this.operator === '<=' || this.operator === '<') &&
+ (comp.operator === '>=' || comp.operator === '>'))
+
+ return sameDirectionIncreasing || sameDirectionDecreasing ||
+ (sameSemVer && differentDirectionsInclusive) ||
+ oppositeDirectionsLessThan || oppositeDirectionsGreaterThan
+}
+
+exports.Range = Range
+function Range (range, options) {
+ if (!options || typeof options !== 'object') {
+ options = {
+ loose: !!options,
+ includePrerelease: false
+ }
+ }
+
+ if (range instanceof Range) {
+ if (range.loose === !!options.loose &&
+ range.includePrerelease === !!options.includePrerelease) {
+ return range
+ } else {
+ return new Range(range.raw, options)
+ }
+ }
+
+ if (range instanceof Comparator) {
+ return new Range(range.value, options)
+ }
+
+ if (!(this instanceof Range)) {
+ return new Range(range, options)
+ }
+
+ this.options = options
+ this.loose = !!options.loose
+ this.includePrerelease = !!options.includePrerelease
+
+ // First, split based on boolean or ||
+ this.raw = range
+ this.set = range.split(/\s*\|\|\s*/).map(function (range) {
+ return this.parseRange(range.trim())
+ }, this).filter(function (c) {
+ // throw out any that are not relevant for whatever reason
+ return c.length
+ })
+
+ if (!this.set.length) {
+ throw new TypeError('Invalid SemVer Range: ' + range)
+ }
+
+ this.format()
+}
+
+Range.prototype.format = function () {
+ this.range = this.set.map(function (comps) {
+ return comps.join(' ').trim()
+ }).join('||').trim()
+ return this.range
+}
+
+Range.prototype.toString = function () {
+ return this.range
+}
+
+Range.prototype.parseRange = function (range) {
+ var loose = this.options.loose
+ range = range.trim()
+ // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
+ var hr = loose ? re[HYPHENRANGELOOSE] : re[HYPHENRANGE]
+ range = range.replace(hr, hyphenReplace)
+ debug('hyphen replace', range)
+ // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
+ range = range.replace(re[COMPARATORTRIM], comparatorTrimReplace)
+ debug('comparator trim', range, re[COMPARATORTRIM])
+
+ // `~ 1.2.3` => `~1.2.3`
+ range = range.replace(re[TILDETRIM], tildeTrimReplace)
+
+ // `^ 1.2.3` => `^1.2.3`
+ range = range.replace(re[CARETTRIM], caretTrimReplace)
+
+ // normalize spaces
+ range = range.split(/\s+/).join(' ')
+
+ // At this point, the range is completely trimmed and
+ // ready to be split into comparators.
+
+ var compRe = loose ? re[COMPARATORLOOSE] : re[COMPARATOR]
+ var set = range.split(' ').map(function (comp) {
+ return parseComparator(comp, this.options)
+ }, this).join(' ').split(/\s+/)
+ if (this.options.loose) {
+ // in loose mode, throw out any that are not valid comparators
+ set = set.filter(function (comp) {
+ return !!comp.match(compRe)
+ })
+ }
+ set = set.map(function (comp) {
+ return new Comparator(comp, this.options)
+ }, this)
+
+ return set
+}
+
+Range.prototype.intersects = function (range, options) {
+ if (!(range instanceof Range)) {
+ throw new TypeError('a Range is required')
+ }
+
+ return this.set.some(function (thisComparators) {
+ return thisComparators.every(function (thisComparator) {
+ return range.set.some(function (rangeComparators) {
+ return rangeComparators.every(function (rangeComparator) {
+ return thisComparator.intersects(rangeComparator, options)
+ })
+ })
+ })
+ })
+}
+
+// Mostly just for testing and legacy API reasons
+exports.toComparators = toComparators
+function toComparators (range, options) {
+ return new Range(range, options).set.map(function (comp) {
+ return comp.map(function (c) {
+ return c.value
+ }).join(' ').trim().split(' ')
+ })
+}
+
+// comprised of xranges, tildes, stars, and gtlt's at this point.
+// already replaced the hyphen ranges
+// turn into a set of JUST comparators.
+function parseComparator (comp, options) {
+ debug('comp', comp, options)
+ comp = replaceCarets(comp, options)
+ debug('caret', comp)
+ comp = replaceTildes(comp, options)
+ debug('tildes', comp)
+ comp = replaceXRanges(comp, options)
+ debug('xrange', comp)
+ comp = replaceStars(comp, options)
+ debug('stars', comp)
+ return comp
+}
+
+function isX (id) {
+ return !id || id.toLowerCase() === 'x' || id === '*'
+}
+
+// ~, ~> --> * (any, kinda silly)
+// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0
+// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0
+// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0
+// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0
+// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0
+function replaceTildes (comp, options) {
+ return comp.trim().split(/\s+/).map(function (comp) {
+ return replaceTilde(comp, options)
+ }).join(' ')
+}
+
+function replaceTilde (comp, options) {
+ var r = options.loose ? re[TILDELOOSE] : re[TILDE]
+ return comp.replace(r, function (_, M, m, p, pr) {
+ debug('tilde', comp, _, M, m, p, pr)
+ var ret
+
+ if (isX(M)) {
+ ret = ''
+ } else if (isX(m)) {
+ ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0'
+ } else if (isX(p)) {
+ // ~1.2 == >=1.2.0 <1.3.0
+ ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0'
+ } else if (pr) {
+ debug('replaceTilde pr', pr)
+ ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+ ' <' + M + '.' + (+m + 1) + '.0'
+ } else {
+ // ~1.2.3 == >=1.2.3 <1.3.0
+ ret = '>=' + M + '.' + m + '.' + p +
+ ' <' + M + '.' + (+m + 1) + '.0'
+ }
+
+ debug('tilde return', ret)
+ return ret
+ })
+}
+
+// ^ --> * (any, kinda silly)
+// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0
+// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0
+// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0
+// ^1.2.3 --> >=1.2.3 <2.0.0
+// ^1.2.0 --> >=1.2.0 <2.0.0
+function replaceCarets (comp, options) {
+ return comp.trim().split(/\s+/).map(function (comp) {
+ return replaceCaret(comp, options)
+ }).join(' ')
+}
+
+function replaceCaret (comp, options) {
+ debug('caret', comp, options)
+ var r = options.loose ? re[CARETLOOSE] : re[CARET]
+ return comp.replace(r, function (_, M, m, p, pr) {
+ debug('caret', comp, _, M, m, p, pr)
+ var ret
+
+ if (isX(M)) {
+ ret = ''
+ } else if (isX(m)) {
+ ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0'
+ } else if (isX(p)) {
+ if (M === '0') {
+ ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0'
+ } else {
+ ret = '>=' + M + '.' + m + '.0 <' + (+M + 1) + '.0.0'
+ }
+ } else if (pr) {
+ debug('replaceCaret pr', pr)
+ if (M === '0') {
+ if (m === '0') {
+ ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+ ' <' + M + '.' + m + '.' + (+p + 1)
+ } else {
+ ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+ ' <' + M + '.' + (+m + 1) + '.0'
+ }
+ } else {
+ ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+ ' <' + (+M + 1) + '.0.0'
+ }
+ } else {
+ debug('no pr')
+ if (M === '0') {
+ if (m === '0') {
+ ret = '>=' + M + '.' + m + '.' + p +
+ ' <' + M + '.' + m + '.' + (+p + 1)
+ } else {
+ ret = '>=' + M + '.' + m + '.' + p +
+ ' <' + M + '.' + (+m + 1) + '.0'
+ }
+ } else {
+ ret = '>=' + M + '.' + m + '.' + p +
+ ' <' + (+M + 1) + '.0.0'
+ }
+ }
+
+ debug('caret return', ret)
+ return ret
+ })
+}
+
+function replaceXRanges (comp, options) {
+ debug('replaceXRanges', comp, options)
+ return comp.split(/\s+/).map(function (comp) {
+ return replaceXRange(comp, options)
+ }).join(' ')
+}
+
+function replaceXRange (comp, options) {
+ comp = comp.trim()
+ var r = options.loose ? re[XRANGELOOSE] : re[XRANGE]
+ return comp.replace(r, function (ret, gtlt, M, m, p, pr) {
+ debug('xRange', comp, ret, gtlt, M, m, p, pr)
+ var xM = isX(M)
+ var xm = xM || isX(m)
+ var xp = xm || isX(p)
+ var anyX = xp
+
+ if (gtlt === '=' && anyX) {
+ gtlt = ''
+ }
+
+ if (xM) {
+ if (gtlt === '>' || gtlt === '<') {
+ // nothing is allowed
+ ret = '<0.0.0'
+ } else {
+ // nothing is forbidden
+ ret = '*'
+ }
+ } else if (gtlt && anyX) {
+ // we know patch is an x, because we have any x at all.
+ // replace X with 0
+ if (xm) {
+ m = 0
+ }
+ p = 0
+
+ if (gtlt === '>') {
+ // >1 => >=2.0.0
+ // >1.2 => >=1.3.0
+ // >1.2.3 => >= 1.2.4
+ gtlt = '>='
+ if (xm) {
+ M = +M + 1
+ m = 0
+ p = 0
+ } else {
+ m = +m + 1
+ p = 0
+ }
+ } else if (gtlt === '<=') {
+ // <=0.7.x is actually <0.8.0, since any 0.7.x should
+ // pass. Similarly, <=7.x is actually <8.0.0, etc.
+ gtlt = '<'
+ if (xm) {
+ M = +M + 1
+ } else {
+ m = +m + 1
+ }
+ }
+
+ ret = gtlt + M + '.' + m + '.' + p
+ } else if (xm) {
+ ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0'
+ } else if (xp) {
+ ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0'
+ }
+
+ debug('xRange return', ret)
+
+ return ret
+ })
+}
+
+// Because * is AND-ed with everything else in the comparator,
+// and '' means "any version", just remove the *s entirely.
+function replaceStars (comp, options) {
+ debug('replaceStars', comp, options)
+ // Looseness is ignored here. star is always as loose as it gets!
+ return comp.trim().replace(re[STAR], '')
+}
+
+// This function is passed to string.replace(re[HYPHENRANGE])
+// M, m, patch, prerelease, build
+// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
+// 1.2.3 - 3.4 => >=1.2.0 <3.5.0 Any 3.4.x will do
+// 1.2 - 3.4 => >=1.2.0 <3.5.0
+function hyphenReplace ($0,
+ from, fM, fm, fp, fpr, fb,
+ to, tM, tm, tp, tpr, tb) {
+ if (isX(fM)) {
+ from = ''
+ } else if (isX(fm)) {
+ from = '>=' + fM + '.0.0'
+ } else if (isX(fp)) {
+ from = '>=' + fM + '.' + fm + '.0'
+ } else {
+ from = '>=' + from
+ }
+
+ if (isX(tM)) {
+ to = ''
+ } else if (isX(tm)) {
+ to = '<' + (+tM + 1) + '.0.0'
+ } else if (isX(tp)) {
+ to = '<' + tM + '.' + (+tm + 1) + '.0'
+ } else if (tpr) {
+ to = '<=' + tM + '.' + tm + '.' + tp + '-' + tpr
+ } else {
+ to = '<=' + to
+ }
+
+ return (from + ' ' + to).trim()
+}
+
+// if ANY of the sets match ALL of its comparators, then pass
+Range.prototype.test = function (version) {
+ if (!version) {
+ return false
+ }
+
+ if (typeof version === 'string') {
+ version = new SemVer(version, this.options)
+ }
+
+ for (var i = 0; i < this.set.length; i++) {
+ if (testSet(this.set[i], version, this.options)) {
+ return true
+ }
+ }
+ return false
+}
+
+function testSet (set, version, options) {
+ for (var i = 0; i < set.length; i++) {
+ if (!set[i].test(version)) {
+ return false
+ }
+ }
+
+ if (version.prerelease.length && !options.includePrerelease) {
+ // Find the set of versions that are allowed to have prereleases
+ // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
+ // That should allow `1.2.3-pr.2` to pass.
+ // However, `1.2.4-alpha.notready` should NOT be allowed,
+ // even though it's within the range set by the comparators.
+ for (i = 0; i < set.length; i++) {
+ debug(set[i].semver)
+ if (set[i].semver === ANY) {
+ continue
+ }
+
+ if (set[i].semver.prerelease.length > 0) {
+ var allowed = set[i].semver
+ if (allowed.major === version.major &&
+ allowed.minor === version.minor &&
+ allowed.patch === version.patch) {
+ return true
+ }
+ }
+ }
+
+ // Version has a -pre, but it's not one of the ones we like.
+ return false
+ }
+
+ return true
+}
+
+exports.satisfies = satisfies
+function satisfies (version, range, options) {
+ try {
+ range = new Range(range, options)
+ } catch (er) {
+ return false
+ }
+ return range.test(version)
+}
+
+exports.maxSatisfying = maxSatisfying
+function maxSatisfying (versions, range, options) {
+ var max = null
+ var maxSV = null
+ try {
+ var rangeObj = new Range(range, options)
+ } catch (er) {
+ return null
+ }
+ versions.forEach(function (v) {
+ if (rangeObj.test(v)) {
+ // satisfies(v, range, options)
+ if (!max || maxSV.compare(v) === -1) {
+ // compare(max, v, true)
+ max = v
+ maxSV = new SemVer(max, options)
+ }
+ }
+ })
+ return max
+}
+
+exports.minSatisfying = minSatisfying
+function minSatisfying (versions, range, options) {
+ var min = null
+ var minSV = null
+ try {
+ var rangeObj = new Range(range, options)
+ } catch (er) {
+ return null
+ }
+ versions.forEach(function (v) {
+ if (rangeObj.test(v)) {
+ // satisfies(v, range, options)
+ if (!min || minSV.compare(v) === 1) {
+ // compare(min, v, true)
+ min = v
+ minSV = new SemVer(min, options)
+ }
+ }
+ })
+ return min
+}
+
+exports.minVersion = minVersion
+function minVersion (range, loose) {
+ range = new Range(range, loose)
+
+ var minver = new SemVer('0.0.0')
+ if (range.test(minver)) {
+ return minver
+ }
+
+ minver = new SemVer('0.0.0-0')
+ if (range.test(minver)) {
+ return minver
+ }
+
+ minver = null
+ for (var i = 0; i < range.set.length; ++i) {
+ var comparators = range.set[i]
+
+ comparators.forEach(function (comparator) {
+ // Clone to avoid manipulating the comparator's semver object.
+ var compver = new SemVer(comparator.semver.version)
+ switch (comparator.operator) {
+ case '>':
+ if (compver.prerelease.length === 0) {
+ compver.patch++
+ } else {
+ compver.prerelease.push(0)
+ }
+ compver.raw = compver.format()
+ /* fallthrough */
+ case '':
+ case '>=':
+ if (!minver || gt(minver, compver)) {
+ minver = compver
+ }
+ break
+ case '<':
+ case '<=':
+ /* Ignore maximum versions */
+ break
+ /* istanbul ignore next */
+ default:
+ throw new Error('Unexpected operation: ' + comparator.operator)
+ }
+ })
+ }
+
+ if (minver && range.test(minver)) {
+ return minver
+ }
+
+ return null
+}
+
+exports.validRange = validRange
+function validRange (range, options) {
+ try {
+ // Return '*' instead of '' so that truthiness works.
+ // This will throw if it's invalid anyway
+ return new Range(range, options).range || '*'
+ } catch (er) {
+ return null
+ }
+}
+
+// Determine if version is less than all the versions possible in the range
+exports.ltr = ltr
+function ltr (version, range, options) {
+ return outside(version, range, '<', options)
+}
+
+// Determine if version is greater than all the versions possible in the range.
+exports.gtr = gtr
+function gtr (version, range, options) {
+ return outside(version, range, '>', options)
+}
+
+exports.outside = outside
+function outside (version, range, hilo, options) {
+ version = new SemVer(version, options)
+ range = new Range(range, options)
+
+ var gtfn, ltefn, ltfn, comp, ecomp
+ switch (hilo) {
+ case '>':
+ gtfn = gt
+ ltefn = lte
+ ltfn = lt
+ comp = '>'
+ ecomp = '>='
+ break
+ case '<':
+ gtfn = lt
+ ltefn = gte
+ ltfn = gt
+ comp = '<'
+ ecomp = '<='
+ break
+ default:
+ throw new TypeError('Must provide a hilo val of "<" or ">"')
+ }
+
+ // If it satisifes the range it is not outside
+ if (satisfies(version, range, options)) {
+ return false
+ }
+
+ // From now on, variable terms are as if we're in "gtr" mode.
+ // but note that everything is flipped for the "ltr" function.
+
+ for (var i = 0; i < range.set.length; ++i) {
+ var comparators = range.set[i]
+
+ var high = null
+ var low = null
+
+ comparators.forEach(function (comparator) {
+ if (comparator.semver === ANY) {
+ comparator = new Comparator('>=0.0.0')
+ }
+ high = high || comparator
+ low = low || comparator
+ if (gtfn(comparator.semver, high.semver, options)) {
+ high = comparator
+ } else if (ltfn(comparator.semver, low.semver, options)) {
+ low = comparator
+ }
+ })
+
+ // If the edge version comparator has a operator then our version
+ // isn't outside it
+ if (high.operator === comp || high.operator === ecomp) {
+ return false
+ }
+
+ // If the lowest version comparator has an operator and our version
+ // is less than it then it isn't higher than the range
+ if ((!low.operator || low.operator === comp) &&
+ ltefn(version, low.semver)) {
+ return false
+ } else if (low.operator === ecomp && ltfn(version, low.semver)) {
+ return false
+ }
+ }
+ return true
+}
+
+exports.prerelease = prerelease
+function prerelease (version, options) {
+ var parsed = parse(version, options)
+ return (parsed && parsed.prerelease.length) ? parsed.prerelease : null
+}
+
+exports.intersects = intersects
+function intersects (r1, r2, options) {
+ r1 = new Range(r1, options)
+ r2 = new Range(r2, options)
+ return r1.intersects(r2)
+}
+
+exports.coerce = coerce
+function coerce (version) {
+ if (version instanceof SemVer) {
+ return version
+ }
+
+ if (typeof version !== 'string') {
+ return null
+ }
+
+ var match = version.match(re[COERCE])
+
+ if (match == null) {
+ return null
+ }
+
+ return parse(match[1] +
+ '.' + (match[2] || '0') +
+ '.' + (match[3] || '0'))
+}
diff --git a/homework7/project_express/node_modules/send/HISTORY.md b/homework7/project_express/node_modules/send/HISTORY.md
new file mode 100644
index 0000000..d14ac06
--- /dev/null
+++ b/homework7/project_express/node_modules/send/HISTORY.md
@@ -0,0 +1,496 @@
+0.17.1 / 2019-05-10
+===================
+
+ * Set stricter CSP header in redirect & error responses
+ * deps: range-parser@~1.2.1
+
+0.17.0 / 2019-05-03
+===================
+
+ * deps: http-errors@~1.7.2
+ - Set constructor name when possible
+ - Use `toidentifier` module to make class names
+ - deps: depd@~1.1.2
+ - deps: setprototypeof@1.1.1
+ - deps: statuses@'>= 1.5.0 < 2'
+ * deps: mime@1.6.0
+ - Add extensions for JPEG-2000 images
+ - Add new `font/*` types from IANA
+ - Add WASM mapping
+ - Update `.bdoc` to `application/bdoc`
+ - Update `.bmp` to `image/bmp`
+ - Update `.m4a` to `audio/mp4`
+ - Update `.rtf` to `application/rtf`
+ - Update `.wav` to `audio/wav`
+ - Update `.xml` to `application/xml`
+ - Update generic extensions to `application/octet-stream`:
+ `.deb`, `.dll`, `.dmg`, `.exe`, `.iso`, `.msi`
+ - Use mime-score module to resolve extension conflicts
+ * deps: ms@2.1.1
+ - Add `week`/`w` support
+ - Fix negative number handling
+ * deps: statuses@~1.5.0
+ * perf: remove redundant `path.normalize` call
+
+0.16.2 / 2018-02-07
+===================
+
+ * Fix incorrect end tag in default error & redirects
+ * deps: depd@~1.1.2
+ - perf: remove argument reassignment
+ * deps: encodeurl@~1.0.2
+ - Fix encoding `%` as last character
+ * deps: statuses@~1.4.0
+
+0.16.1 / 2017-09-29
+===================
+
+ * Fix regression in edge-case behavior for empty `path`
+
+0.16.0 / 2017-09-27
+===================
+
+ * Add `immutable` option
+ * Fix missing `` in default error & redirects
+ * Use instance methods on steam to check for listeners
+ * deps: mime@1.4.1
+ - Add 70 new types for file extensions
+ - Set charset as "UTF-8" for .js and .json
+ * perf: improve path validation speed
+
+0.15.6 / 2017-09-22
+===================
+
+ * deps: debug@2.6.9
+ * perf: improve `If-Match` token parsing
+
+0.15.5 / 2017-09-20
+===================
+
+ * deps: etag@~1.8.1
+ - perf: replace regular expression with substring
+ * deps: fresh@0.5.2
+ - Fix handling of modified headers with invalid dates
+ - perf: improve ETag match loop
+ - perf: improve `If-None-Match` token parsing
+
+0.15.4 / 2017-08-05
+===================
+
+ * deps: debug@2.6.8
+ * deps: depd@~1.1.1
+ - Remove unnecessary `Buffer` loading
+ * deps: http-errors@~1.6.2
+ - deps: depd@1.1.1
+
+0.15.3 / 2017-05-16
+===================
+
+ * deps: debug@2.6.7
+ - deps: ms@2.0.0
+ * deps: ms@2.0.0
+
+0.15.2 / 2017-04-26
+===================
+
+ * deps: debug@2.6.4
+ - Fix `DEBUG_MAX_ARRAY_LENGTH`
+ - deps: ms@0.7.3
+ * deps: ms@1.0.0
+
+0.15.1 / 2017-03-04
+===================
+
+ * Fix issue when `Date.parse` does not return `NaN` on invalid date
+ * Fix strict violation in broken environments
+
+0.15.0 / 2017-02-25
+===================
+
+ * Support `If-Match` and `If-Unmodified-Since` headers
+ * Add `res` and `path` arguments to `directory` event
+ * Remove usage of `res._headers` private field
+ - Improves compatibility with Node.js 8 nightly
+ * Send complete HTML document in redirect & error responses
+ * Set default CSP header in redirect & error responses
+ * Use `res.getHeaderNames()` when available
+ * Use `res.headersSent` when available
+ * deps: debug@2.6.1
+ - Allow colors in workers
+ - Deprecated `DEBUG_FD` environment variable set to `3` or higher
+ - Fix error when running under React Native
+ - Use same color for same namespace
+ - deps: ms@0.7.2
+ * deps: etag@~1.8.0
+ * deps: fresh@0.5.0
+ - Fix false detection of `no-cache` request directive
+ - Fix incorrect result when `If-None-Match` has both `*` and ETags
+ - Fix weak `ETag` matching to match spec
+ - perf: delay reading header values until needed
+ - perf: enable strict mode
+ - perf: hoist regular expressions
+ - perf: remove duplicate conditional
+ - perf: remove unnecessary boolean coercions
+ - perf: skip checking modified time if ETag check failed
+ - perf: skip parsing `If-None-Match` when no `ETag` header
+ - perf: use `Date.parse` instead of `new Date`
+ * deps: http-errors@~1.6.1
+ - Make `message` property enumerable for `HttpError`s
+ - deps: setprototypeof@1.0.3
+
+0.14.2 / 2017-01-23
+===================
+
+ * deps: http-errors@~1.5.1
+ - deps: inherits@2.0.3
+ - deps: setprototypeof@1.0.2
+ - deps: statuses@'>= 1.3.1 < 2'
+ * deps: ms@0.7.2
+ * deps: statuses@~1.3.1
+
+0.14.1 / 2016-06-09
+===================
+
+ * Fix redirect error when `path` contains raw non-URL characters
+ * Fix redirect when `path` starts with multiple forward slashes
+
+0.14.0 / 2016-06-06
+===================
+
+ * Add `acceptRanges` option
+ * Add `cacheControl` option
+ * Attempt to combine multiple ranges into single range
+ * Correctly inherit from `Stream` class
+ * Fix `Content-Range` header in 416 responses when using `start`/`end` options
+ * Fix `Content-Range` header missing from default 416 responses
+ * Ignore non-byte `Range` headers
+ * deps: http-errors@~1.5.0
+ - Add `HttpError` export, for `err instanceof createError.HttpError`
+ - Support new code `421 Misdirected Request`
+ - Use `setprototypeof` module to replace `__proto__` setting
+ - deps: inherits@2.0.1
+ - deps: statuses@'>= 1.3.0 < 2'
+ - perf: enable strict mode
+ * deps: range-parser@~1.2.0
+ - Fix incorrectly returning -1 when there is at least one valid range
+ - perf: remove internal function
+ * deps: statuses@~1.3.0
+ - Add `421 Misdirected Request`
+ - perf: enable strict mode
+ * perf: remove argument reassignment
+
+0.13.2 / 2016-03-05
+===================
+
+ * Fix invalid `Content-Type` header when `send.mime.default_type` unset
+
+0.13.1 / 2016-01-16
+===================
+
+ * deps: depd@~1.1.0
+ - Support web browser loading
+ - perf: enable strict mode
+ * deps: destroy@~1.0.4
+ - perf: enable strict mode
+ * deps: escape-html@~1.0.3
+ - perf: enable strict mode
+ - perf: optimize string replacement
+ - perf: use faster string coercion
+ * deps: range-parser@~1.0.3
+ - perf: enable strict mode
+
+0.13.0 / 2015-06-16
+===================
+
+ * Allow Node.js HTTP server to set `Date` response header
+ * Fix incorrectly removing `Content-Location` on 304 response
+ * Improve the default redirect response headers
+ * Send appropriate headers on default error response
+ * Use `http-errors` for standard emitted errors
+ * Use `statuses` instead of `http` module for status messages
+ * deps: escape-html@1.0.2
+ * deps: etag@~1.7.0
+ - Improve stat performance by removing hashing
+ * deps: fresh@0.3.0
+ - Add weak `ETag` matching support
+ * deps: on-finished@~2.3.0
+ - Add defined behavior for HTTP `CONNECT` requests
+ - Add defined behavior for HTTP `Upgrade` requests
+ - deps: ee-first@1.1.1
+ * perf: enable strict mode
+ * perf: remove unnecessary array allocations
+
+0.12.3 / 2015-05-13
+===================
+
+ * deps: debug@~2.2.0
+ - deps: ms@0.7.1
+ * deps: depd@~1.0.1
+ * deps: etag@~1.6.0
+ - Improve support for JXcore
+ - Support "fake" stats objects in environments without `fs`
+ * deps: ms@0.7.1
+ - Prevent extraordinarily long inputs
+ * deps: on-finished@~2.2.1
+
+0.12.2 / 2015-03-13
+===================
+
+ * Throw errors early for invalid `extensions` or `index` options
+ * deps: debug@~2.1.3
+ - Fix high intensity foreground color for bold
+ - deps: ms@0.7.0
+
+0.12.1 / 2015-02-17
+===================
+
+ * Fix regression sending zero-length files
+
+0.12.0 / 2015-02-16
+===================
+
+ * Always read the stat size from the file
+ * Fix mutating passed-in `options`
+ * deps: mime@1.3.4
+
+0.11.1 / 2015-01-20
+===================
+
+ * Fix `root` path disclosure
+
+0.11.0 / 2015-01-05
+===================
+
+ * deps: debug@~2.1.1
+ * deps: etag@~1.5.1
+ - deps: crc@3.2.1
+ * deps: ms@0.7.0
+ - Add `milliseconds`
+ - Add `msecs`
+ - Add `secs`
+ - Add `mins`
+ - Add `hrs`
+ - Add `yrs`
+ * deps: on-finished@~2.2.0
+
+0.10.1 / 2014-10-22
+===================
+
+ * deps: on-finished@~2.1.1
+ - Fix handling of pipelined requests
+
+0.10.0 / 2014-10-15
+===================
+
+ * deps: debug@~2.1.0
+ - Implement `DEBUG_FD` env variable support
+ * deps: depd@~1.0.0
+ * deps: etag@~1.5.0
+ - Improve string performance
+ - Slightly improve speed for weak ETags over 1KB
+
+0.9.3 / 2014-09-24
+==================
+
+ * deps: etag@~1.4.0
+ - Support "fake" stats objects
+
+0.9.2 / 2014-09-15
+==================
+
+ * deps: depd@0.4.5
+ * deps: etag@~1.3.1
+ * deps: range-parser@~1.0.2
+
+0.9.1 / 2014-09-07
+==================
+
+ * deps: fresh@0.2.4
+
+0.9.0 / 2014-09-07
+==================
+
+ * Add `lastModified` option
+ * Use `etag` to generate `ETag` header
+ * deps: debug@~2.0.0
+
+0.8.5 / 2014-09-04
+==================
+
+ * Fix malicious path detection for empty string path
+
+0.8.4 / 2014-09-04
+==================
+
+ * Fix a path traversal issue when using `root`
+
+0.8.3 / 2014-08-16
+==================
+
+ * deps: destroy@1.0.3
+ - renamed from dethroy
+ * deps: on-finished@2.1.0
+
+0.8.2 / 2014-08-14
+==================
+
+ * Work around `fd` leak in Node.js 0.10 for `fs.ReadStream`
+ * deps: dethroy@1.0.2
+
+0.8.1 / 2014-08-05
+==================
+
+ * Fix `extensions` behavior when file already has extension
+
+0.8.0 / 2014-08-05
+==================
+
+ * Add `extensions` option
+
+0.7.4 / 2014-08-04
+==================
+
+ * Fix serving index files without root dir
+
+0.7.3 / 2014-07-29
+==================
+
+ * Fix incorrect 403 on Windows and Node.js 0.11
+
+0.7.2 / 2014-07-27
+==================
+
+ * deps: depd@0.4.4
+ - Work-around v8 generating empty stack traces
+
+0.7.1 / 2014-07-26
+==================
+
+ * deps: depd@0.4.3
+ - Fix exception when global `Error.stackTraceLimit` is too low
+
+0.7.0 / 2014-07-20
+==================
+
+ * Deprecate `hidden` option; use `dotfiles` option
+ * Add `dotfiles` option
+ * deps: debug@1.0.4
+ * deps: depd@0.4.2
+ - Add `TRACE_DEPRECATION` environment variable
+ - Remove non-standard grey color from color output
+ - Support `--no-deprecation` argument
+ - Support `--trace-deprecation` argument
+
+0.6.0 / 2014-07-11
+==================
+
+ * Deprecate `from` option; use `root` option
+ * Deprecate `send.etag()` -- use `etag` in `options`
+ * Deprecate `send.hidden()` -- use `hidden` in `options`
+ * Deprecate `send.index()` -- use `index` in `options`
+ * Deprecate `send.maxage()` -- use `maxAge` in `options`
+ * Deprecate `send.root()` -- use `root` in `options`
+ * Cap `maxAge` value to 1 year
+ * deps: debug@1.0.3
+ - Add support for multiple wildcards in namespaces
+
+0.5.0 / 2014-06-28
+==================
+
+ * Accept string for `maxAge` (converted by `ms`)
+ * Add `headers` event
+ * Include link in default redirect response
+ * Use `EventEmitter.listenerCount` to count listeners
+
+0.4.3 / 2014-06-11
+==================
+
+ * Do not throw un-catchable error on file open race condition
+ * Use `escape-html` for HTML escaping
+ * deps: debug@1.0.2
+ - fix some debugging output colors on node.js 0.8
+ * deps: finished@1.2.2
+ * deps: fresh@0.2.2
+
+0.4.2 / 2014-06-09
+==================
+
+ * fix "event emitter leak" warnings
+ * deps: debug@1.0.1
+ * deps: finished@1.2.1
+
+0.4.1 / 2014-06-02
+==================
+
+ * Send `max-age` in `Cache-Control` in correct format
+
+0.4.0 / 2014-05-27
+==================
+
+ * Calculate ETag with md5 for reduced collisions
+ * Fix wrong behavior when index file matches directory
+ * Ignore stream errors after request ends
+ - Goodbye `EBADF, read`
+ * Skip directories in index file search
+ * deps: debug@0.8.1
+
+0.3.0 / 2014-04-24
+==================
+
+ * Fix sending files with dots without root set
+ * Coerce option types
+ * Accept API options in options object
+ * Set etags to "weak"
+ * Include file path in etag
+ * Make "Can't set headers after they are sent." catchable
+ * Send full entity-body for multi range requests
+ * Default directory access to 403 when index disabled
+ * Support multiple index paths
+ * Support "If-Range" header
+ * Control whether to generate etags
+ * deps: mime@1.2.11
+
+0.2.0 / 2014-01-29
+==================
+
+ * update range-parser and fresh
+
+0.1.4 / 2013-08-11
+==================
+
+ * update fresh
+
+0.1.3 / 2013-07-08
+==================
+
+ * Revert "Fix fd leak"
+
+0.1.2 / 2013-07-03
+==================
+
+ * Fix fd leak
+
+0.1.0 / 2012-08-25
+==================
+
+ * add options parameter to send() that is passed to fs.createReadStream() [kanongil]
+
+0.0.4 / 2012-08-16
+==================
+
+ * allow custom "Accept-Ranges" definition
+
+0.0.3 / 2012-07-16
+==================
+
+ * fix normalization of the root directory. Closes #3
+
+0.0.2 / 2012-07-09
+==================
+
+ * add passing of req explicitly for now (YUCK)
+
+0.0.1 / 2010-01-03
+==================
+
+ * Initial release
diff --git a/homework7/project_express/node_modules/send/LICENSE b/homework7/project_express/node_modules/send/LICENSE
new file mode 100644
index 0000000..4aa69e8
--- /dev/null
+++ b/homework7/project_express/node_modules/send/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2012 TJ Holowaychuk
+Copyright (c) 2014-2016 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/homework7/project_express/node_modules/send/README.md b/homework7/project_express/node_modules/send/README.md
new file mode 100644
index 0000000..179e8c3
--- /dev/null
+++ b/homework7/project_express/node_modules/send/README.md
@@ -0,0 +1,329 @@
+# send
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Linux Build][travis-image]][travis-url]
+[![Windows Build][appveyor-image]][appveyor-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Send is a library for streaming files from the file system as a http response
+supporting partial responses (Ranges), conditional-GET negotiation (If-Match,
+If-Unmodified-Since, If-None-Match, If-Modified-Since), high test coverage,
+and granular events which may be leveraged to take appropriate actions in your
+application or framework.
+
+Looking to serve up entire folders mapped to URLs? Try [serve-static](https://www.npmjs.org/package/serve-static).
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+$ npm install send
+```
+
+## API
+
+
+
+```js
+var send = require('send')
+```
+
+### send(req, path, [options])
+
+Create a new `SendStream` for the given path to send to a `res`. The `req` is
+the Node.js HTTP request and the `path` is a urlencoded path to send (urlencoded,
+not the actual file-system path).
+
+#### Options
+
+##### acceptRanges
+
+Enable or disable accepting ranged requests, defaults to true.
+Disabling this will not send `Accept-Ranges` and ignore the contents
+of the `Range` request header.
+
+##### cacheControl
+
+Enable or disable setting `Cache-Control` response header, defaults to
+true. Disabling this will ignore the `immutable` and `maxAge` options.
+
+##### dotfiles
+
+Set how "dotfiles" are treated when encountered. A dotfile is a file
+or directory that begins with a dot ("."). Note this check is done on
+the path itself without checking if the path actually exists on the
+disk. If `root` is specified, only the dotfiles above the root are
+checked (i.e. the root itself can be within a dotfile when when set
+to "deny").
+
+ - `'allow'` No special treatment for dotfiles.
+ - `'deny'` Send a 403 for any request for a dotfile.
+ - `'ignore'` Pretend like the dotfile does not exist and 404.
+
+The default value is _similar_ to `'ignore'`, with the exception that
+this default will not ignore the files within a directory that begins
+with a dot, for backward-compatibility.
+
+##### end
+
+Byte offset at which the stream ends, defaults to the length of the file
+minus 1. The end is inclusive in the stream, meaning `end: 3` will include
+the 4th byte in the stream.
+
+##### etag
+
+Enable or disable etag generation, defaults to true.
+
+##### extensions
+
+If a given file doesn't exist, try appending one of the given extensions,
+in the given order. By default, this is disabled (set to `false`). An
+example value that will serve extension-less HTML files: `['html', 'htm']`.
+This is skipped if the requested file already has an extension.
+
+##### immutable
+
+Enable or diable the `immutable` directive in the `Cache-Control` response
+header, defaults to `false`. If set to `true`, the `maxAge` option should
+also be specified to enable caching. The `immutable` directive will prevent
+supported clients from making conditional requests during the life of the
+`maxAge` option to check if the file has changed.
+
+##### index
+
+By default send supports "index.html" files, to disable this
+set `false` or to supply a new index pass a string or an array
+in preferred order.
+
+##### lastModified
+
+Enable or disable `Last-Modified` header, defaults to true. Uses the file
+system's last modified value.
+
+##### maxAge
+
+Provide a max-age in milliseconds for http caching, defaults to 0.
+This can also be a string accepted by the
+[ms](https://www.npmjs.org/package/ms#readme) module.
+
+##### root
+
+Serve files relative to `path`.
+
+##### start
+
+Byte offset at which the stream starts, defaults to 0. The start is inclusive,
+meaning `start: 2` will include the 3rd byte in the stream.
+
+#### Events
+
+The `SendStream` is an event emitter and will emit the following events:
+
+ - `error` an error occurred `(err)`
+ - `directory` a directory was requested `(res, path)`
+ - `file` a file was requested `(path, stat)`
+ - `headers` the headers are about to be set on a file `(res, path, stat)`
+ - `stream` file streaming has started `(stream)`
+ - `end` streaming has completed
+
+#### .pipe
+
+The `pipe` method is used to pipe the response into the Node.js HTTP response
+object, typically `send(req, path, options).pipe(res)`.
+
+### .mime
+
+The `mime` export is the global instance of of the
+[`mime` npm module](https://www.npmjs.com/package/mime).
+
+This is used to configure the MIME types that are associated with file extensions
+as well as other options for how to resolve the MIME type of a file (like the
+default type to use for an unknown file extension).
+
+## Error-handling
+
+By default when no `error` listeners are present an automatic response will be
+made, otherwise you have full control over the response, aka you may show a 5xx
+page etc.
+
+## Caching
+
+It does _not_ perform internal caching, you should use a reverse proxy cache
+such as Varnish for this, or those fancy things called CDNs. If your
+application is small enough that it would benefit from single-node memory
+caching, it's small enough that it does not need caching at all ;).
+
+## Debugging
+
+To enable `debug()` instrumentation output export __DEBUG__:
+
+```
+$ DEBUG=send node app
+```
+
+## Running tests
+
+```
+$ npm install
+$ npm test
+```
+
+## Examples
+
+### Serve a specific file
+
+This simple example will send a specific file to all requests.
+
+```js
+var http = require('http')
+var send = require('send')
+
+var server = http.createServer(function onRequest (req, res) {
+ send(req, '/path/to/index.html')
+ .pipe(res)
+})
+
+server.listen(3000)
+```
+
+### Serve all files from a directory
+
+This simple example will just serve up all the files in a
+given directory as the top-level. For example, a request
+`GET /foo.txt` will send back `/www/public/foo.txt`.
+
+```js
+var http = require('http')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+var server = http.createServer(function onRequest (req, res) {
+ send(req, parseUrl(req).pathname, { root: '/www/public' })
+ .pipe(res)
+})
+
+server.listen(3000)
+```
+
+### Custom file types
+
+```js
+var http = require('http')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+// Default unknown types to text/plain
+send.mime.default_type = 'text/plain'
+
+// Add a custom type
+send.mime.define({
+ 'application/x-my-type': ['x-mt', 'x-mtt']
+})
+
+var server = http.createServer(function onRequest (req, res) {
+ send(req, parseUrl(req).pathname, { root: '/www/public' })
+ .pipe(res)
+})
+
+server.listen(3000)
+```
+
+### Custom directory index view
+
+This is a example of serving up a structure of directories with a
+custom function to render a listing of a directory.
+
+```js
+var http = require('http')
+var fs = require('fs')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+// Transfer arbitrary files from within /www/example.com/public/*
+// with a custom handler for directory listing
+var server = http.createServer(function onRequest (req, res) {
+ send(req, parseUrl(req).pathname, { index: false, root: '/www/public' })
+ .once('directory', directory)
+ .pipe(res)
+})
+
+server.listen(3000)
+
+// Custom directory handler
+function directory (res, path) {
+ var stream = this
+
+ // redirect to trailing slash for consistent url
+ if (!stream.hasTrailingSlash()) {
+ return stream.redirect(path)
+ }
+
+ // get directory list
+ fs.readdir(path, function onReaddir (err, list) {
+ if (err) return stream.error(err)
+
+ // render an index for the directory
+ res.setHeader('Content-Type', 'text/plain; charset=UTF-8')
+ res.end(list.join('\n') + '\n')
+ })
+}
+```
+
+### Serving from a root directory with custom error-handling
+
+```js
+var http = require('http')
+var parseUrl = require('parseurl')
+var send = require('send')
+
+var server = http.createServer(function onRequest (req, res) {
+ // your custom error-handling logic:
+ function error (err) {
+ res.statusCode = err.status || 500
+ res.end(err.message)
+ }
+
+ // your custom headers
+ function headers (res, path, stat) {
+ // serve all files for download
+ res.setHeader('Content-Disposition', 'attachment')
+ }
+
+ // your custom directory handling logic:
+ function redirect () {
+ res.statusCode = 301
+ res.setHeader('Location', req.url + '/')
+ res.end('Redirecting to ' + req.url + '/')
+ }
+
+ // transfer arbitrary files from within
+ // /www/example.com/public/*
+ send(req, parseUrl(req).pathname, { root: '/www/public' })
+ .on('error', error)
+ .on('directory', redirect)
+ .on('headers', headers)
+ .pipe(res)
+})
+
+server.listen(3000)
+```
+
+## License
+
+[MIT](LICENSE)
+
+[appveyor-image]: https://badgen.net/appveyor/ci/dougwilson/send/master?label=windows
+[appveyor-url]: https://ci.appveyor.com/project/dougwilson/send
+[coveralls-image]: https://badgen.net/coveralls/c/github/pillarjs/send/master
+[coveralls-url]: https://coveralls.io/r/pillarjs/send?branch=master
+[node-image]: https://badgen.net/npm/node/send
+[node-url]: https://nodejs.org/en/download/
+[npm-downloads-image]: https://badgen.net/npm/dm/send
+[npm-url]: https://npmjs.org/package/send
+[npm-version-image]: https://badgen.net/npm/v/send
+[travis-image]: https://badgen.net/travis/pillarjs/send/master?label=linux
+[travis-url]: https://travis-ci.org/pillarjs/send
diff --git a/homework7/project_express/node_modules/send/index.js b/homework7/project_express/node_modules/send/index.js
new file mode 100644
index 0000000..fca2112
--- /dev/null
+++ b/homework7/project_express/node_modules/send/index.js
@@ -0,0 +1,1129 @@
+/*!
+ * send
+ * Copyright(c) 2012 TJ Holowaychuk
+ * Copyright(c) 2014-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var createError = require('http-errors')
+var debug = require('debug')('send')
+var deprecate = require('depd')('send')
+var destroy = require('destroy')
+var encodeUrl = require('encodeurl')
+var escapeHtml = require('escape-html')
+var etag = require('etag')
+var fresh = require('fresh')
+var fs = require('fs')
+var mime = require('mime')
+var ms = require('ms')
+var onFinished = require('on-finished')
+var parseRange = require('range-parser')
+var path = require('path')
+var statuses = require('statuses')
+var Stream = require('stream')
+var util = require('util')
+
+/**
+ * Path function references.
+ * @private
+ */
+
+var extname = path.extname
+var join = path.join
+var normalize = path.normalize
+var resolve = path.resolve
+var sep = path.sep
+
+/**
+ * Regular expression for identifying a bytes Range header.
+ * @private
+ */
+
+var BYTES_RANGE_REGEXP = /^ *bytes=/
+
+/**
+ * Maximum value allowed for the max age.
+ * @private
+ */
+
+var MAX_MAXAGE = 60 * 60 * 24 * 365 * 1000 // 1 year
+
+/**
+ * Regular expression to match a path with a directory up component.
+ * @private
+ */
+
+var UP_PATH_REGEXP = /(?:^|[\\/])\.\.(?:[\\/]|$)/
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = send
+module.exports.mime = mime
+
+/**
+ * Return a `SendStream` for `req` and `path`.
+ *
+ * @param {object} req
+ * @param {string} path
+ * @param {object} [options]
+ * @return {SendStream}
+ * @public
+ */
+
+function send (req, path, options) {
+ return new SendStream(req, path, options)
+}
+
+/**
+ * Initialize a `SendStream` with the given `path`.
+ *
+ * @param {Request} req
+ * @param {String} path
+ * @param {object} [options]
+ * @private
+ */
+
+function SendStream (req, path, options) {
+ Stream.call(this)
+
+ var opts = options || {}
+
+ this.options = opts
+ this.path = path
+ this.req = req
+
+ this._acceptRanges = opts.acceptRanges !== undefined
+ ? Boolean(opts.acceptRanges)
+ : true
+
+ this._cacheControl = opts.cacheControl !== undefined
+ ? Boolean(opts.cacheControl)
+ : true
+
+ this._etag = opts.etag !== undefined
+ ? Boolean(opts.etag)
+ : true
+
+ this._dotfiles = opts.dotfiles !== undefined
+ ? opts.dotfiles
+ : 'ignore'
+
+ if (this._dotfiles !== 'ignore' && this._dotfiles !== 'allow' && this._dotfiles !== 'deny') {
+ throw new TypeError('dotfiles option must be "allow", "deny", or "ignore"')
+ }
+
+ this._hidden = Boolean(opts.hidden)
+
+ if (opts.hidden !== undefined) {
+ deprecate('hidden: use dotfiles: \'' + (this._hidden ? 'allow' : 'ignore') + '\' instead')
+ }
+
+ // legacy support
+ if (opts.dotfiles === undefined) {
+ this._dotfiles = undefined
+ }
+
+ this._extensions = opts.extensions !== undefined
+ ? normalizeList(opts.extensions, 'extensions option')
+ : []
+
+ this._immutable = opts.immutable !== undefined
+ ? Boolean(opts.immutable)
+ : false
+
+ this._index = opts.index !== undefined
+ ? normalizeList(opts.index, 'index option')
+ : ['index.html']
+
+ this._lastModified = opts.lastModified !== undefined
+ ? Boolean(opts.lastModified)
+ : true
+
+ this._maxage = opts.maxAge || opts.maxage
+ this._maxage = typeof this._maxage === 'string'
+ ? ms(this._maxage)
+ : Number(this._maxage)
+ this._maxage = !isNaN(this._maxage)
+ ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)
+ : 0
+
+ this._root = opts.root
+ ? resolve(opts.root)
+ : null
+
+ if (!this._root && opts.from) {
+ this.from(opts.from)
+ }
+}
+
+/**
+ * Inherits from `Stream`.
+ */
+
+util.inherits(SendStream, Stream)
+
+/**
+ * Enable or disable etag generation.
+ *
+ * @param {Boolean} val
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.etag = deprecate.function(function etag (val) {
+ this._etag = Boolean(val)
+ debug('etag %s', this._etag)
+ return this
+}, 'send.etag: pass etag as option')
+
+/**
+ * Enable or disable "hidden" (dot) files.
+ *
+ * @param {Boolean} path
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.hidden = deprecate.function(function hidden (val) {
+ this._hidden = Boolean(val)
+ this._dotfiles = undefined
+ debug('hidden %s', this._hidden)
+ return this
+}, 'send.hidden: use dotfiles option')
+
+/**
+ * Set index `paths`, set to a falsy
+ * value to disable index support.
+ *
+ * @param {String|Boolean|Array} paths
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.index = deprecate.function(function index (paths) {
+ var index = !paths ? [] : normalizeList(paths, 'paths argument')
+ debug('index %o', paths)
+ this._index = index
+ return this
+}, 'send.index: pass index as option')
+
+/**
+ * Set root `path`.
+ *
+ * @param {String} path
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.root = function root (path) {
+ this._root = resolve(String(path))
+ debug('root %s', this._root)
+ return this
+}
+
+SendStream.prototype.from = deprecate.function(SendStream.prototype.root,
+ 'send.from: pass root as option')
+
+SendStream.prototype.root = deprecate.function(SendStream.prototype.root,
+ 'send.root: pass root as option')
+
+/**
+ * Set max-age to `maxAge`.
+ *
+ * @param {Number} maxAge
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.maxage = deprecate.function(function maxage (maxAge) {
+ this._maxage = typeof maxAge === 'string'
+ ? ms(maxAge)
+ : Number(maxAge)
+ this._maxage = !isNaN(this._maxage)
+ ? Math.min(Math.max(0, this._maxage), MAX_MAXAGE)
+ : 0
+ debug('max-age %d', this._maxage)
+ return this
+}, 'send.maxage: pass maxAge as option')
+
+/**
+ * Emit error with `status`.
+ *
+ * @param {number} status
+ * @param {Error} [err]
+ * @private
+ */
+
+SendStream.prototype.error = function error (status, err) {
+ // emit if listeners instead of responding
+ if (hasListeners(this, 'error')) {
+ return this.emit('error', createError(status, err, {
+ expose: false
+ }))
+ }
+
+ var res = this.res
+ var msg = statuses[status] || String(status)
+ var doc = createHtmlDocument('Error', escapeHtml(msg))
+
+ // clear existing headers
+ clearHeaders(res)
+
+ // add error headers
+ if (err && err.headers) {
+ setHeaders(res, err.headers)
+ }
+
+ // send basic response
+ res.statusCode = status
+ res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+ res.setHeader('Content-Length', Buffer.byteLength(doc))
+ res.setHeader('Content-Security-Policy', "default-src 'none'")
+ res.setHeader('X-Content-Type-Options', 'nosniff')
+ res.end(doc)
+}
+
+/**
+ * Check if the pathname ends with "/".
+ *
+ * @return {boolean}
+ * @private
+ */
+
+SendStream.prototype.hasTrailingSlash = function hasTrailingSlash () {
+ return this.path[this.path.length - 1] === '/'
+}
+
+/**
+ * Check if this is a conditional GET request.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isConditionalGET = function isConditionalGET () {
+ return this.req.headers['if-match'] ||
+ this.req.headers['if-unmodified-since'] ||
+ this.req.headers['if-none-match'] ||
+ this.req.headers['if-modified-since']
+}
+
+/**
+ * Check if the request preconditions failed.
+ *
+ * @return {boolean}
+ * @private
+ */
+
+SendStream.prototype.isPreconditionFailure = function isPreconditionFailure () {
+ var req = this.req
+ var res = this.res
+
+ // if-match
+ var match = req.headers['if-match']
+ if (match) {
+ var etag = res.getHeader('ETag')
+ return !etag || (match !== '*' && parseTokenList(match).every(function (match) {
+ return match !== etag && match !== 'W/' + etag && 'W/' + match !== etag
+ }))
+ }
+
+ // if-unmodified-since
+ var unmodifiedSince = parseHttpDate(req.headers['if-unmodified-since'])
+ if (!isNaN(unmodifiedSince)) {
+ var lastModified = parseHttpDate(res.getHeader('Last-Modified'))
+ return isNaN(lastModified) || lastModified > unmodifiedSince
+ }
+
+ return false
+}
+
+/**
+ * Strip content-* header fields.
+ *
+ * @private
+ */
+
+SendStream.prototype.removeContentHeaderFields = function removeContentHeaderFields () {
+ var res = this.res
+ var headers = getHeaderNames(res)
+
+ for (var i = 0; i < headers.length; i++) {
+ var header = headers[i]
+ if (header.substr(0, 8) === 'content-' && header !== 'content-location') {
+ res.removeHeader(header)
+ }
+ }
+}
+
+/**
+ * Respond with 304 not modified.
+ *
+ * @api private
+ */
+
+SendStream.prototype.notModified = function notModified () {
+ var res = this.res
+ debug('not modified')
+ this.removeContentHeaderFields()
+ res.statusCode = 304
+ res.end()
+}
+
+/**
+ * Raise error that headers already sent.
+ *
+ * @api private
+ */
+
+SendStream.prototype.headersAlreadySent = function headersAlreadySent () {
+ var err = new Error('Can\'t set headers after they are sent.')
+ debug('headers already sent')
+ this.error(500, err)
+}
+
+/**
+ * Check if the request is cacheable, aka
+ * responded with 2xx or 304 (see RFC 2616 section 14.2{5,6}).
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isCachable = function isCachable () {
+ var statusCode = this.res.statusCode
+ return (statusCode >= 200 && statusCode < 300) ||
+ statusCode === 304
+}
+
+/**
+ * Handle stat() error.
+ *
+ * @param {Error} error
+ * @private
+ */
+
+SendStream.prototype.onStatError = function onStatError (error) {
+ switch (error.code) {
+ case 'ENAMETOOLONG':
+ case 'ENOENT':
+ case 'ENOTDIR':
+ this.error(404, error)
+ break
+ default:
+ this.error(500, error)
+ break
+ }
+}
+
+/**
+ * Check if the cache is fresh.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isFresh = function isFresh () {
+ return fresh(this.req.headers, {
+ 'etag': this.res.getHeader('ETag'),
+ 'last-modified': this.res.getHeader('Last-Modified')
+ })
+}
+
+/**
+ * Check if the range is fresh.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isRangeFresh = function isRangeFresh () {
+ var ifRange = this.req.headers['if-range']
+
+ if (!ifRange) {
+ return true
+ }
+
+ // if-range as etag
+ if (ifRange.indexOf('"') !== -1) {
+ var etag = this.res.getHeader('ETag')
+ return Boolean(etag && ifRange.indexOf(etag) !== -1)
+ }
+
+ // if-range as modified date
+ var lastModified = this.res.getHeader('Last-Modified')
+ return parseHttpDate(lastModified) <= parseHttpDate(ifRange)
+}
+
+/**
+ * Redirect to path.
+ *
+ * @param {string} path
+ * @private
+ */
+
+SendStream.prototype.redirect = function redirect (path) {
+ var res = this.res
+
+ if (hasListeners(this, 'directory')) {
+ this.emit('directory', res, path)
+ return
+ }
+
+ if (this.hasTrailingSlash()) {
+ this.error(403)
+ return
+ }
+
+ var loc = encodeUrl(collapseLeadingSlashes(this.path + '/'))
+ var doc = createHtmlDocument('Redirecting', 'Redirecting to ' +
+ escapeHtml(loc) + '')
+
+ // redirect
+ res.statusCode = 301
+ res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+ res.setHeader('Content-Length', Buffer.byteLength(doc))
+ res.setHeader('Content-Security-Policy', "default-src 'none'")
+ res.setHeader('X-Content-Type-Options', 'nosniff')
+ res.setHeader('Location', loc)
+ res.end(doc)
+}
+
+/**
+ * Pipe to `res.
+ *
+ * @param {Stream} res
+ * @return {Stream} res
+ * @api public
+ */
+
+SendStream.prototype.pipe = function pipe (res) {
+ // root path
+ var root = this._root
+
+ // references
+ this.res = res
+
+ // decode the path
+ var path = decode(this.path)
+ if (path === -1) {
+ this.error(400)
+ return res
+ }
+
+ // null byte(s)
+ if (~path.indexOf('\0')) {
+ this.error(400)
+ return res
+ }
+
+ var parts
+ if (root !== null) {
+ // normalize
+ if (path) {
+ path = normalize('.' + sep + path)
+ }
+
+ // malicious path
+ if (UP_PATH_REGEXP.test(path)) {
+ debug('malicious path "%s"', path)
+ this.error(403)
+ return res
+ }
+
+ // explode path parts
+ parts = path.split(sep)
+
+ // join / normalize from optional root dir
+ path = normalize(join(root, path))
+ } else {
+ // ".." is malicious without "root"
+ if (UP_PATH_REGEXP.test(path)) {
+ debug('malicious path "%s"', path)
+ this.error(403)
+ return res
+ }
+
+ // explode path parts
+ parts = normalize(path).split(sep)
+
+ // resolve the path
+ path = resolve(path)
+ }
+
+ // dotfile handling
+ if (containsDotFile(parts)) {
+ var access = this._dotfiles
+
+ // legacy support
+ if (access === undefined) {
+ access = parts[parts.length - 1][0] === '.'
+ ? (this._hidden ? 'allow' : 'ignore')
+ : 'allow'
+ }
+
+ debug('%s dotfile "%s"', access, path)
+ switch (access) {
+ case 'allow':
+ break
+ case 'deny':
+ this.error(403)
+ return res
+ case 'ignore':
+ default:
+ this.error(404)
+ return res
+ }
+ }
+
+ // index file support
+ if (this._index.length && this.hasTrailingSlash()) {
+ this.sendIndex(path)
+ return res
+ }
+
+ this.sendFile(path)
+ return res
+}
+
+/**
+ * Transfer `path`.
+ *
+ * @param {String} path
+ * @api public
+ */
+
+SendStream.prototype.send = function send (path, stat) {
+ var len = stat.size
+ var options = this.options
+ var opts = {}
+ var res = this.res
+ var req = this.req
+ var ranges = req.headers.range
+ var offset = options.start || 0
+
+ if (headersSent(res)) {
+ // impossible to send now
+ this.headersAlreadySent()
+ return
+ }
+
+ debug('pipe "%s"', path)
+
+ // set header fields
+ this.setHeader(path, stat)
+
+ // set content-type
+ this.type(path)
+
+ // conditional GET support
+ if (this.isConditionalGET()) {
+ if (this.isPreconditionFailure()) {
+ this.error(412)
+ return
+ }
+
+ if (this.isCachable() && this.isFresh()) {
+ this.notModified()
+ return
+ }
+ }
+
+ // adjust len to start/end options
+ len = Math.max(0, len - offset)
+ if (options.end !== undefined) {
+ var bytes = options.end - offset + 1
+ if (len > bytes) len = bytes
+ }
+
+ // Range support
+ if (this._acceptRanges && BYTES_RANGE_REGEXP.test(ranges)) {
+ // parse
+ ranges = parseRange(len, ranges, {
+ combine: true
+ })
+
+ // If-Range support
+ if (!this.isRangeFresh()) {
+ debug('range stale')
+ ranges = -2
+ }
+
+ // unsatisfiable
+ if (ranges === -1) {
+ debug('range unsatisfiable')
+
+ // Content-Range
+ res.setHeader('Content-Range', contentRange('bytes', len))
+
+ // 416 Requested Range Not Satisfiable
+ return this.error(416, {
+ headers: { 'Content-Range': res.getHeader('Content-Range') }
+ })
+ }
+
+ // valid (syntactically invalid/multiple ranges are treated as a regular response)
+ if (ranges !== -2 && ranges.length === 1) {
+ debug('range %j', ranges)
+
+ // Content-Range
+ res.statusCode = 206
+ res.setHeader('Content-Range', contentRange('bytes', len, ranges[0]))
+
+ // adjust for requested range
+ offset += ranges[0].start
+ len = ranges[0].end - ranges[0].start + 1
+ }
+ }
+
+ // clone options
+ for (var prop in options) {
+ opts[prop] = options[prop]
+ }
+
+ // set read options
+ opts.start = offset
+ opts.end = Math.max(offset, offset + len - 1)
+
+ // content-length
+ res.setHeader('Content-Length', len)
+
+ // HEAD support
+ if (req.method === 'HEAD') {
+ res.end()
+ return
+ }
+
+ this.stream(path, opts)
+}
+
+/**
+ * Transfer file for `path`.
+ *
+ * @param {String} path
+ * @api private
+ */
+SendStream.prototype.sendFile = function sendFile (path) {
+ var i = 0
+ var self = this
+
+ debug('stat "%s"', path)
+ fs.stat(path, function onstat (err, stat) {
+ if (err && err.code === 'ENOENT' && !extname(path) && path[path.length - 1] !== sep) {
+ // not found, check extensions
+ return next(err)
+ }
+ if (err) return self.onStatError(err)
+ if (stat.isDirectory()) return self.redirect(path)
+ self.emit('file', path, stat)
+ self.send(path, stat)
+ })
+
+ function next (err) {
+ if (self._extensions.length <= i) {
+ return err
+ ? self.onStatError(err)
+ : self.error(404)
+ }
+
+ var p = path + '.' + self._extensions[i++]
+
+ debug('stat "%s"', p)
+ fs.stat(p, function (err, stat) {
+ if (err) return next(err)
+ if (stat.isDirectory()) return next()
+ self.emit('file', p, stat)
+ self.send(p, stat)
+ })
+ }
+}
+
+/**
+ * Transfer index for `path`.
+ *
+ * @param {String} path
+ * @api private
+ */
+SendStream.prototype.sendIndex = function sendIndex (path) {
+ var i = -1
+ var self = this
+
+ function next (err) {
+ if (++i >= self._index.length) {
+ if (err) return self.onStatError(err)
+ return self.error(404)
+ }
+
+ var p = join(path, self._index[i])
+
+ debug('stat "%s"', p)
+ fs.stat(p, function (err, stat) {
+ if (err) return next(err)
+ if (stat.isDirectory()) return next()
+ self.emit('file', p, stat)
+ self.send(p, stat)
+ })
+ }
+
+ next()
+}
+
+/**
+ * Stream `path` to the response.
+ *
+ * @param {String} path
+ * @param {Object} options
+ * @api private
+ */
+
+SendStream.prototype.stream = function stream (path, options) {
+ // TODO: this is all lame, refactor meeee
+ var finished = false
+ var self = this
+ var res = this.res
+
+ // pipe
+ var stream = fs.createReadStream(path, options)
+ this.emit('stream', stream)
+ stream.pipe(res)
+
+ // response finished, done with the fd
+ onFinished(res, function onfinished () {
+ finished = true
+ destroy(stream)
+ })
+
+ // error handling code-smell
+ stream.on('error', function onerror (err) {
+ // request already finished
+ if (finished) return
+
+ // clean up stream
+ finished = true
+ destroy(stream)
+
+ // error
+ self.onStatError(err)
+ })
+
+ // end
+ stream.on('end', function onend () {
+ self.emit('end')
+ })
+}
+
+/**
+ * Set content-type based on `path`
+ * if it hasn't been explicitly set.
+ *
+ * @param {String} path
+ * @api private
+ */
+
+SendStream.prototype.type = function type (path) {
+ var res = this.res
+
+ if (res.getHeader('Content-Type')) return
+
+ var type = mime.lookup(path)
+
+ if (!type) {
+ debug('no content-type')
+ return
+ }
+
+ var charset = mime.charsets.lookup(type)
+
+ debug('content-type %s', type)
+ res.setHeader('Content-Type', type + (charset ? '; charset=' + charset : ''))
+}
+
+/**
+ * Set response header fields, most
+ * fields may be pre-defined.
+ *
+ * @param {String} path
+ * @param {Object} stat
+ * @api private
+ */
+
+SendStream.prototype.setHeader = function setHeader (path, stat) {
+ var res = this.res
+
+ this.emit('headers', res, path, stat)
+
+ if (this._acceptRanges && !res.getHeader('Accept-Ranges')) {
+ debug('accept ranges')
+ res.setHeader('Accept-Ranges', 'bytes')
+ }
+
+ if (this._cacheControl && !res.getHeader('Cache-Control')) {
+ var cacheControl = 'public, max-age=' + Math.floor(this._maxage / 1000)
+
+ if (this._immutable) {
+ cacheControl += ', immutable'
+ }
+
+ debug('cache-control %s', cacheControl)
+ res.setHeader('Cache-Control', cacheControl)
+ }
+
+ if (this._lastModified && !res.getHeader('Last-Modified')) {
+ var modified = stat.mtime.toUTCString()
+ debug('modified %s', modified)
+ res.setHeader('Last-Modified', modified)
+ }
+
+ if (this._etag && !res.getHeader('ETag')) {
+ var val = etag(stat)
+ debug('etag %s', val)
+ res.setHeader('ETag', val)
+ }
+}
+
+/**
+ * Clear all headers from a response.
+ *
+ * @param {object} res
+ * @private
+ */
+
+function clearHeaders (res) {
+ var headers = getHeaderNames(res)
+
+ for (var i = 0; i < headers.length; i++) {
+ res.removeHeader(headers[i])
+ }
+}
+
+/**
+ * Collapse all leading slashes into a single slash
+ *
+ * @param {string} str
+ * @private
+ */
+function collapseLeadingSlashes (str) {
+ for (var i = 0; i < str.length; i++) {
+ if (str[i] !== '/') {
+ break
+ }
+ }
+
+ return i > 1
+ ? '/' + str.substr(i)
+ : str
+}
+
+/**
+ * Determine if path parts contain a dotfile.
+ *
+ * @api private
+ */
+
+function containsDotFile (parts) {
+ for (var i = 0; i < parts.length; i++) {
+ var part = parts[i]
+ if (part.length > 1 && part[0] === '.') {
+ return true
+ }
+ }
+
+ return false
+}
+
+/**
+ * Create a Content-Range header.
+ *
+ * @param {string} type
+ * @param {number} size
+ * @param {array} [range]
+ */
+
+function contentRange (type, size, range) {
+ return type + ' ' + (range ? range.start + '-' + range.end : '*') + '/' + size
+}
+
+/**
+ * Create a minimal HTML document.
+ *
+ * @param {string} title
+ * @param {string} body
+ * @private
+ */
+
+function createHtmlDocument (title, body) {
+ return '\n' +
+ '\n' +
+ '\n' +
+ '\n' +
+ '' + title + '\n' +
+ '\n' +
+ '\n' +
+ '
' + body + '
\n' +
+ '\n' +
+ '\n'
+}
+
+/**
+ * decodeURIComponent.
+ *
+ * Allows V8 to only deoptimize this fn instead of all
+ * of send().
+ *
+ * @param {String} path
+ * @api private
+ */
+
+function decode (path) {
+ try {
+ return decodeURIComponent(path)
+ } catch (err) {
+ return -1
+ }
+}
+
+/**
+ * Get the header names on a respnse.
+ *
+ * @param {object} res
+ * @returns {array[string]}
+ * @private
+ */
+
+function getHeaderNames (res) {
+ return typeof res.getHeaderNames !== 'function'
+ ? Object.keys(res._headers || {})
+ : res.getHeaderNames()
+}
+
+/**
+ * Determine if emitter has listeners of a given type.
+ *
+ * The way to do this check is done three different ways in Node.js >= 0.8
+ * so this consolidates them into a minimal set using instance methods.
+ *
+ * @param {EventEmitter} emitter
+ * @param {string} type
+ * @returns {boolean}
+ * @private
+ */
+
+function hasListeners (emitter, type) {
+ var count = typeof emitter.listenerCount !== 'function'
+ ? emitter.listeners(type).length
+ : emitter.listenerCount(type)
+
+ return count > 0
+}
+
+/**
+ * Determine if the response headers have been sent.
+ *
+ * @param {object} res
+ * @returns {boolean}
+ * @private
+ */
+
+function headersSent (res) {
+ return typeof res.headersSent !== 'boolean'
+ ? Boolean(res._header)
+ : res.headersSent
+}
+
+/**
+ * Normalize the index option into an array.
+ *
+ * @param {boolean|string|array} val
+ * @param {string} name
+ * @private
+ */
+
+function normalizeList (val, name) {
+ var list = [].concat(val || [])
+
+ for (var i = 0; i < list.length; i++) {
+ if (typeof list[i] !== 'string') {
+ throw new TypeError(name + ' must be array of strings or false')
+ }
+ }
+
+ return list
+}
+
+/**
+ * Parse an HTTP Date into a number.
+ *
+ * @param {string} date
+ * @private
+ */
+
+function parseHttpDate (date) {
+ var timestamp = date && Date.parse(date)
+
+ return typeof timestamp === 'number'
+ ? timestamp
+ : NaN
+}
+
+/**
+ * Parse a HTTP token list.
+ *
+ * @param {string} str
+ * @private
+ */
+
+function parseTokenList (str) {
+ var end = 0
+ var list = []
+ var start = 0
+
+ // gather tokens
+ for (var i = 0, len = str.length; i < len; i++) {
+ switch (str.charCodeAt(i)) {
+ case 0x20: /* */
+ if (start === end) {
+ start = end = i + 1
+ }
+ break
+ case 0x2c: /* , */
+ list.push(str.substring(start, end))
+ start = end = i + 1
+ break
+ default:
+ end = i + 1
+ break
+ }
+ }
+
+ // final token
+ list.push(str.substring(start, end))
+
+ return list
+}
+
+/**
+ * Set an object of headers on a response.
+ *
+ * @param {object} res
+ * @param {object} headers
+ * @private
+ */
+
+function setHeaders (res, headers) {
+ var keys = Object.keys(headers)
+
+ for (var i = 0; i < keys.length; i++) {
+ var key = keys[i]
+ res.setHeader(key, headers[key])
+ }
+}
diff --git a/homework7/project_express/node_modules/send/node_modules/ms/index.js b/homework7/project_express/node_modules/send/node_modules/ms/index.js
new file mode 100644
index 0000000..7229750
--- /dev/null
+++ b/homework7/project_express/node_modules/send/node_modules/ms/index.js
@@ -0,0 +1,162 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var w = d * 7;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ * - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function(val, options) {
+ options = options || {};
+ var type = typeof val;
+ if (type === 'string' && val.length > 0) {
+ return parse(val);
+ } else if (type === 'number' && isNaN(val) === false) {
+ return options.long ? fmtLong(val) : fmtShort(val);
+ }
+ throw new Error(
+ 'val is not a non-empty string or a valid number. val=' +
+ JSON.stringify(val)
+ );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+ str = String(str);
+ if (str.length > 100) {
+ return;
+ }
+ var match = /^((?:\d+)?\-?\d?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+ str
+ );
+ if (!match) {
+ return;
+ }
+ var n = parseFloat(match[1]);
+ var type = (match[2] || 'ms').toLowerCase();
+ switch (type) {
+ case 'years':
+ case 'year':
+ case 'yrs':
+ case 'yr':
+ case 'y':
+ return n * y;
+ case 'weeks':
+ case 'week':
+ case 'w':
+ return n * w;
+ case 'days':
+ case 'day':
+ case 'd':
+ return n * d;
+ case 'hours':
+ case 'hour':
+ case 'hrs':
+ case 'hr':
+ case 'h':
+ return n * h;
+ case 'minutes':
+ case 'minute':
+ case 'mins':
+ case 'min':
+ case 'm':
+ return n * m;
+ case 'seconds':
+ case 'second':
+ case 'secs':
+ case 'sec':
+ case 's':
+ return n * s;
+ case 'milliseconds':
+ case 'millisecond':
+ case 'msecs':
+ case 'msec':
+ case 'ms':
+ return n;
+ default:
+ return undefined;
+ }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+ var msAbs = Math.abs(ms);
+ if (msAbs >= d) {
+ return Math.round(ms / d) + 'd';
+ }
+ if (msAbs >= h) {
+ return Math.round(ms / h) + 'h';
+ }
+ if (msAbs >= m) {
+ return Math.round(ms / m) + 'm';
+ }
+ if (msAbs >= s) {
+ return Math.round(ms / s) + 's';
+ }
+ return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+ var msAbs = Math.abs(ms);
+ if (msAbs >= d) {
+ return plural(ms, msAbs, d, 'day');
+ }
+ if (msAbs >= h) {
+ return plural(ms, msAbs, h, 'hour');
+ }
+ if (msAbs >= m) {
+ return plural(ms, msAbs, m, 'minute');
+ }
+ if (msAbs >= s) {
+ return plural(ms, msAbs, s, 'second');
+ }
+ return ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, msAbs, n, name) {
+ var isPlural = msAbs >= n * 1.5;
+ return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+}
diff --git a/homework7/project_express/node_modules/send/node_modules/ms/license.md b/homework7/project_express/node_modules/send/node_modules/ms/license.md
new file mode 100644
index 0000000..69b6125
--- /dev/null
+++ b/homework7/project_express/node_modules/send/node_modules/ms/license.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Zeit, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/homework7/project_express/node_modules/send/node_modules/ms/package.json b/homework7/project_express/node_modules/send/node_modules/ms/package.json
new file mode 100644
index 0000000..dbff5cf
--- /dev/null
+++ b/homework7/project_express/node_modules/send/node_modules/ms/package.json
@@ -0,0 +1,69 @@
+{
+ "_from": "ms@2.1.1",
+ "_id": "ms@2.1.1",
+ "_inBundle": false,
+ "_integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
+ "_location": "/send/ms",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "ms@2.1.1",
+ "name": "ms",
+ "escapedName": "ms",
+ "rawSpec": "2.1.1",
+ "saveSpec": null,
+ "fetchSpec": "2.1.1"
+ },
+ "_requiredBy": [
+ "/send"
+ ],
+ "_resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
+ "_shasum": "30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a",
+ "_spec": "ms@2.1.1",
+ "_where": "D:\\Education\\JS-2\\7\\project_express\\node_modules\\send",
+ "bugs": {
+ "url": "https://github.com/zeit/ms/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Tiny millisecond conversion utility",
+ "devDependencies": {
+ "eslint": "4.12.1",
+ "expect.js": "0.3.1",
+ "husky": "0.14.3",
+ "lint-staged": "5.0.0",
+ "mocha": "4.0.1"
+ },
+ "eslintConfig": {
+ "extends": "eslint:recommended",
+ "env": {
+ "node": true,
+ "es6": true
+ }
+ },
+ "files": [
+ "index.js"
+ ],
+ "homepage": "https://github.com/zeit/ms#readme",
+ "license": "MIT",
+ "lint-staged": {
+ "*.js": [
+ "npm run lint",
+ "prettier --single-quote --write",
+ "git add"
+ ]
+ },
+ "main": "./index",
+ "name": "ms",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/zeit/ms.git"
+ },
+ "scripts": {
+ "lint": "eslint lib/* bin/*",
+ "precommit": "lint-staged",
+ "test": "mocha tests.js"
+ },
+ "version": "2.1.1"
+}
diff --git a/homework7/project_express/node_modules/send/node_modules/ms/readme.md b/homework7/project_express/node_modules/send/node_modules/ms/readme.md
new file mode 100644
index 0000000..bb76729
--- /dev/null
+++ b/homework7/project_express/node_modules/send/node_modules/ms/readme.md
@@ -0,0 +1,60 @@
+# ms
+
+[](https://travis-ci.org/zeit/ms)
+[](https://zeit.chat/)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days') // 172800000
+ms('1d') // 86400000
+ms('10h') // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h') // 7200000
+ms('1m') // 60000
+ms('5s') // 5000
+ms('1y') // 31557600000
+ms('100') // 100
+ms('-3 days') // -259200000
+ms('-1h') // -3600000
+ms('-200') // -200
+```
+
+### Convert from Milliseconds
+
+```js
+ms(60000) // "1m"
+ms(2 * 60000) // "2m"
+ms(-3 * 60000) // "-3m"
+ms(ms('10 hours')) // "10h"
+```
+
+### Time Format Written-Out
+
+```js
+ms(60000, { long: true }) // "1 minute"
+ms(2 * 60000, { long: true }) // "2 minutes"
+ms(-3 * 60000, { long: true }) // "-3 minutes"
+ms(ms('10 hours'), { long: true }) // "10 hours"
+```
+
+## Features
+
+- Works both in [Node.js](https://nodejs.org) and in the browser
+- If a number is supplied to `ms`, a string with a unit is returned
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`)
+- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned
+
+## Related Packages
+
+- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time.
+
+## Caught a Bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`
diff --git a/homework7/project_express/node_modules/send/package.json b/homework7/project_express/node_modules/send/package.json
new file mode 100644
index 0000000..4a6d66f
--- /dev/null
+++ b/homework7/project_express/node_modules/send/package.json
@@ -0,0 +1,106 @@
+{
+ "_from": "send@0.17.1",
+ "_id": "send@0.17.1",
+ "_inBundle": false,
+ "_integrity": "sha512-BsVKsiGcQMFwT8UxypobUKyv7irCNRHk1T0G680vk88yf6LBByGcZJOTJCrTP2xVN6yI+XjPJcNuE3V4fT9sAg==",
+ "_location": "/send",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "send@0.17.1",
+ "name": "send",
+ "escapedName": "send",
+ "rawSpec": "0.17.1",
+ "saveSpec": null,
+ "fetchSpec": "0.17.1"
+ },
+ "_requiredBy": [
+ "/express",
+ "/serve-static"
+ ],
+ "_resolved": "https://registry.npmjs.org/send/-/send-0.17.1.tgz",
+ "_shasum": "c1d8b059f7900f7466dd4938bdc44e11ddb376c8",
+ "_spec": "send@0.17.1",
+ "_where": "D:\\Education\\JS-2\\7\\project_express\\node_modules\\express",
+ "author": {
+ "name": "TJ Holowaychuk",
+ "email": "tj@vision-media.ca"
+ },
+ "bugs": {
+ "url": "https://github.com/pillarjs/send/issues"
+ },
+ "bundleDependencies": false,
+ "contributors": [
+ {
+ "name": "Douglas Christopher Wilson",
+ "email": "doug@somethingdoug.com"
+ },
+ {
+ "name": "James Wyatt Cready",
+ "email": "jcready@gmail.com"
+ },
+ {
+ "name": "Jesús Leganés Combarro",
+ "email": "piranna@gmail.com"
+ }
+ ],
+ "dependencies": {
+ "debug": "2.6.9",
+ "depd": "~1.1.2",
+ "destroy": "~1.0.4",
+ "encodeurl": "~1.0.2",
+ "escape-html": "~1.0.3",
+ "etag": "~1.8.1",
+ "fresh": "0.5.2",
+ "http-errors": "~1.7.2",
+ "mime": "1.6.0",
+ "ms": "2.1.1",
+ "on-finished": "~2.3.0",
+ "range-parser": "~1.2.1",
+ "statuses": "~1.5.0"
+ },
+ "deprecated": false,
+ "description": "Better streaming static file server with Range and conditional-GET support",
+ "devDependencies": {
+ "after": "0.8.2",
+ "eslint": "5.16.0",
+ "eslint-config-standard": "12.0.0",
+ "eslint-plugin-import": "2.17.2",
+ "eslint-plugin-markdown": "1.0.0",
+ "eslint-plugin-node": "8.0.1",
+ "eslint-plugin-promise": "4.1.1",
+ "eslint-plugin-standard": "4.0.0",
+ "istanbul": "0.4.5",
+ "mocha": "6.1.4",
+ "supertest": "4.0.2"
+ },
+ "engines": {
+ "node": ">= 0.8.0"
+ },
+ "files": [
+ "HISTORY.md",
+ "LICENSE",
+ "README.md",
+ "index.js"
+ ],
+ "homepage": "https://github.com/pillarjs/send#readme",
+ "keywords": [
+ "static",
+ "file",
+ "server"
+ ],
+ "license": "MIT",
+ "name": "send",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/pillarjs/send.git"
+ },
+ "scripts": {
+ "lint": "eslint --plugin markdown --ext js,md .",
+ "test": "mocha --check-leaks --reporter spec --bail",
+ "test-ci": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --check-leaks --reporter spec",
+ "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --check-leaks --reporter dot"
+ },
+ "version": "0.17.1"
+}
diff --git a/homework7/project_express/node_modules/serve-static/HISTORY.md b/homework7/project_express/node_modules/serve-static/HISTORY.md
new file mode 100644
index 0000000..7203e4f
--- /dev/null
+++ b/homework7/project_express/node_modules/serve-static/HISTORY.md
@@ -0,0 +1,451 @@
+1.14.1 / 2019-05-10
+===================
+
+ * Set stricter CSP header in redirect response
+ * deps: send@0.17.1
+ - deps: range-parser@~1.2.1
+
+1.14.0 / 2019-05-07
+===================
+
+ * deps: parseurl@~1.3.3
+ * deps: send@0.17.0
+ - deps: http-errors@~1.7.2
+ - deps: mime@1.6.0
+ - deps: ms@2.1.1
+ - deps: statuses@~1.5.0
+ - perf: remove redundant `path.normalize` call
+
+1.13.2 / 2018-02-07
+===================
+
+ * Fix incorrect end tag in redirects
+ * deps: encodeurl@~1.0.2
+ - Fix encoding `%` as last character
+ * deps: send@0.16.2
+ - deps: depd@~1.1.2
+ - deps: encodeurl@~1.0.2
+ - deps: statuses@~1.4.0
+
+1.13.1 / 2017-09-29
+===================
+
+ * Fix regression when `root` is incorrectly set to a file
+ * deps: send@0.16.1
+
+1.13.0 / 2017-09-27
+===================
+
+ * deps: send@0.16.0
+ - Add 70 new types for file extensions
+ - Add `immutable` option
+ - Fix missing `