/**
* @param integer $size
*/
public static function setMaxSize($size)
{
self::$_maxSize = intval($size);
}
/**
* Fetches the image at the specified URL using the standard proxy config.
*
* @param string $url
*
* @return array
*/
protected function _fetchImageForProxy($url)
{
$urlHash = md5($url);
$urlParts = parse_url($url);
XenForo_ImageProxyStream::register();
// convert kilobytes to bytes
XenForo_ImageProxyStream::setMaxSize(XenForo_Application::getOptions()->imageProxyMaxSize * 1024);
$streamUri = 'xf-image-proxy://' . $urlHash . '-' . uniqid();
$streamFile = XenForo_ImageProxyStream::getTempFile($streamUri);
$requestFailed = true;
$error = false;
$imageMeta = null;
$fileName = !empty($urlParts['path']) ? basename($urlParts['path']) : '';
$mimeType = '';
$fileSize = 0;
$image = false;
$requestUrl = strtr($url, array(' ' => '+'));
if (preg_match_all('/[^A-Za-z0-9._~:\\/?#\\[\\]@!$&\'()*+,;=%-]/', $requestUrl, $matches)) {
foreach ($matches[0] as $match) {
$requestUrl = str_replace($match[0], '%' . strtoupper(dechex(ord($match[0]))), $requestUrl);
}
}
try {
$response = XenForo_Helper_Http::getClient($requestUrl, array('output_stream' => $streamUri, 'timeout' => 10))->setHeaders('Accept-encoding', 'identity')->request('GET');
if ($response->isSuccessful()) {
$disposition = $response->getHeader('Content-Disposition');
if (is_array($disposition)) {
$disposition = end($disposition);
}
if ($disposition && preg_match('/filename=(\'|"|)(.+)\\1/siU', $disposition, $match)) {
$fileName = $match[2];
}
if (!$fileName) {
$fileName = 'image';
}
$mimeHeader = $response->getHeader('Content-Type');
if (is_array($mimeHeader)) {
$mimeHeader = end($mimeHeader);
}
$mimeType = $mimeHeader ? $mimeHeader : 'unknown/unknown';
$imageMeta = XenForo_ImageProxyStream::getMetaData($streamUri);
if (!empty($imageMeta['error'])) {
switch ($imageMeta['error']) {
case 'not_image':
$error = new XenForo_Phrase('file_not_an_image');
break;
case 'too_large':
$error = new XenForo_Phrase('file_is_too_large');
break;
case 'invalid_type':
$error = new XenForo_Phrase('image_is_invalid_type');
break;
default:
$error = $imageMeta['error'];
}
} else {
$requestFailed = false;
$image = $imageMeta['image'];
$mimeType = $image['mime'];
$fileSize = $imageMeta['length'];
$extension = XenForo_Helper_File::getFileExtension($fileName);
$extensionMap = array(IMAGETYPE_GIF => array('gif'), IMAGETYPE_JPEG => array('jpg', 'jpeg', 'jpe'), IMAGETYPE_PNG => array('png'));
$validExtensions = $extensionMap[$image[2]];
if (!in_array($extension, $validExtensions)) {
$extensionStart = strrpos($fileName, '.');
$fileName = ($extensionStart ? substr($fileName, 0, $extensionStart) : $fileName) . '.' . $validExtensions[0];
}
}
} else {
$error = new XenForo_Phrase('received_unexpected_response_code_x_message_y', array('code' => $response->getStatus(), 'message' => $response->getMessage()));
}
} catch (Exception $e) {
$error = $e->getMessage();
$response = null;
}
$response = null;
return array('url' => $url, 'failed' => $requestFailed, 'error' => $error, 'image' => $image, 'fileName' => $fileName, 'mimeType' => $mimeType, 'fileSize' => $fileSize, 'tempFile' => $streamFile);
}
