Support required auth configuration on the pbincli API.

[blacklight]

Uploads fail if it is not defined.

This also adds support for authenticated uploads. Two different modes are currently supported by pbcli:

• auth="basic", with auth_user and auth_pass.

• auth="custom", with a custom auth_headers dict.

This also adds a round of LINT+Black to the modified files.

Closes: #12

[blacklight]

Btw tests fail because some of the parametrized hostnames are now gone, have implemented rate limiting, run outdated versions or have changed their configuration:

FAILED tests/test_all.py::test_full[https://vim.cx-tests/__init__.py] - SystemExit: 1
FAILED tests/test_all.py::test_full[https://privatebin.gittermann1.de/-tests/__init__.py] - requests.exceptions.ConnectionError: HTTPSConnectionPool(host='privatebin.gittermann1.de', port=443): Max retries exceeded with url: /?j...
FAILED tests/test_all.py::test_async_full[https://vim.cx-tests/__init__.py] - SystemExit: 1
FAILED tests/test_all.py::test_async_full[https://privatebin.gittermann1.de/-tests/__init__.py] - requests.exceptions.ConnectionError: HTTPSConnectionPool(host='privatebin.gittermann1.de', port=443): Max retries exceeded with url: /?j...
FAILED tests/test_all.py::test_async_full[https://paste.carrade.eu/-tests/__init__.py] - TypeError: AsyncClient.__init__() got an unexpected keyword argument 'proxies'
FAILED tests/test_all.py::test_bad_server - SystemExit: 1
FAILED tests/test_all.py::test_good_basic_auth_config[https://vim.cx-tests/__init__.py] - SystemExit: 1
FAILED tests/test_all.py::test_good_basic_auth_config[https://privatebin.gittermann1.de/-tests/__init__.py] - requests.exceptions.ConnectionError: HTTPSConnectionPool(host='privatebin.gittermann1.de', port=443): Max retries exceeded with url: /?j...
FAILED tests/test_all.py::test_good_basic_auth_config[https://paste.carrade.eu/-tests/__init__.py] - privatebinapi.exceptions.PrivateBinAPIError: Please wait 10 seconds between each post.
FAILED tests/test_all.py::test_good_custom_auth_config[https://vim.cx-tests/__init__.py] - SystemExit: 1
FAILED tests/test_all.py::test_good_custom_auth_config[https://privatebin.gittermann1.de/-tests/__init__.py] - requests.exceptions.Connection
Error: HTTPSConnectionPool(host='privatebin.gittermann1.de', port=443): Max retries exceeded with url: /?j...
FAILED tests/test_all.py::test_good_custom_auth_config[https://paste.carrade.eu/-tests/__init__.py] - privatebinapi.exceptions.PrivateBinAPIError: Please wait 10 seconds between each post.

Worth updating the list?

[blacklight]

FYI I've also opened an issue on PBinCli to make the parsing of the settings more robust.

While support for authorized uploads is definitely almost a must-have, I also think that PBinCli shouldn't break downstream implementations between releases by adding new expected fields.