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Update snapchat_agent.php #60

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Update snapchat_agent.php #60

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c80bc0a
Update snapchat_agent.php
acdameli Dec 18, 2014
00fc256
Update snapchat_agent.php
acdameli Dec 18, 2014
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36 changes: 27 additions & 9 deletions src/snapchat_agent.php
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Original file line number Diff line number Diff line change
Expand Up @@ -176,17 +176,35 @@ public function hash($first, $second) {
* TRUE if the blob looks like a media file, FALSE otherwise.
*/
function isMedia($data) {
return isImage($data) || isVideo($data);
}

/**
* Checks to see if a blob looks like an image file.
*
* @param data $data
* The blob data (or just the header).
*
* @return bool
* TRUE if the blob looks like an image (jpeg), FALSE otherwise.
*/
function isImage($data) {
// Check for a JPG header.
if ($data[0] == chr(0xFF) && $data[1] == chr(0xD8)) {
return TRUE;
}

return ($data[0] == chr(0xFF) && $data[1] == chr(0xD8));
}

/**
* Checks to see if a blob looks like a video file.
*
* @param data $data
* The blob data (or just the header).
*
* @return bool
* TRUE if the blob looks like an video (mp4), FALSE otherwise.
*/
function isVideo($data) {
// Check for a MP4 header.
if ($data[0] == chr(0x00) && $data[1] == chr(0x00)) {
return TRUE;
}

return FALSE;
return ($data[0] == chr(0x00) && $data[1] == chr(0x00));
}

/**
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