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partial response added, new code-style applied

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Ragazzo
2013-05-15 14:55:02 +04:00
parent 6431019ae3
commit ba31ee618f
1 changed files with 66 additions and 8 deletions
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72
yii/web/Response.php
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@@ -35,28 +35,86 @@ class Response extends \yii\base\Response
*/
public function sendFile($fileName, $content, $mimeType = null, $terminate = true)
{
if ($mimeType === null && ($mimeType = FileHelper::getMimeType($fileName)) === null) {
$mimeType = 'application/octet-stream';
if ($mimeType === null) {
if (($mimeType = CFileHelper::getMimeTypeByExtension($fileName)) === null) {
$mimeType='text/plain';
}
}
$fileSize = (function_exists('mb_strlen') ? mb_strlen($content,'8bit') : strlen($content));
$contentStart = 0;
$contentEnd = $fileSize - 1;
if (isset($_SERVER['HTTP_RANGE'])) {
header('Accept-Ranges: bytes');
//client sent us a multibyte range, can not hold this one for now
if (strpos(',',$_SERVER['HTTP_RANGE']) !== false) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes $contentStart-$contentEnd/$fileSize");
ob_start();
Yii::app()->end(0,false);
ob_end_clean();
exit(0);
}
$range = str_replace('bytes=','',$_SERVER['HTTP_RANGE']);
//range requests starts from "-", so it means that data must be dumped the end point.
if ($range[0] === '-') {
$contentStart = $fileSize - substr($range,1);
} else {
$range = explode('-',$range);
$contentStart = $range[0];
$contentEnd = (isset($range[1]) && is_numeric($range[1])) ? $range[1] : $fileSize;
}
/* Check the range and make sure it's treated according to the specs.
* http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
*/
// End bytes can not be larger than $end.
$contentEnd = ($contentEnd > $fileSize) ? $fileSize : $contentEnd;
// Validate the requested range and return an error if it's not correct.
$wrongContentStart = ($contentStart > $contentEnd || $contentStart > $fileSize - 1 || $contentStart < 0);
if ($wrongContentStart) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes $contentStart-$contentEnd/$fileSize");
ob_start();
Yii::app()->end(0,false);
ob_end_clean();
exit(0);
}
header('HTTP/1.1 206 Partial Content');
header("Content-Range: bytes $contentStart-$contentEnd/$fileSize");
} else {
header('HTTP/1.1 200 OK');
}
$length = $contentEnd - $contentStart + 1; // Calculate new content length
header('Pragma: public');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header("Content-type: $mimeType");
if (ob_get_length() === false) {
header('Content-Length: ' . (function_exists('mb_strlen') ? mb_strlen($content, '8bit') : strlen($content)));
}
header('Content-Length: '.$length);
header("Content-Disposition: attachment; filename=\"$fileName\"");
header('Content-Transfer-Encoding: binary');
$content = function_exists('mb_substr') ? mb_substr($content,$contentStart,$length) : substr($content,$contentStart,$length);
if ($terminate) {
// clean up the application first because the file downloading could take long time
// which may cause timeout of some resources (such as DB connection)
ob_start();
Yii::app()->end(0,false);
ob_end_clean();
echo $content;
exit(0);
} else {
echo $content;
}
else
echo $content;
}
/**