+ $http = new HTTPClient();
+ common_debug(sprintf('Performing HEAD request for remote file id==%u to avoid unnecessarily downloading too large files. URL: %s', $file->getID(), $remoteUrl));
+ $head = $http->head($remoteUrl);
+ $headers = $head->getHeader();
+ if (!isset($headers['content-length'])) {
+ // file size not specified on remote server
+ common_debug(sprintf('%s: Ignoring remote media because we did not get a content length for file id==%u', __CLASS__, $file->getID()));
+ return true;
+ } elseif (intval($headers['content-length']) > common_config('attachments', 'file_quota')) {
+ // file too big
+ common_debug(sprintf('%s: Skipping remote media because content length (%u) is larger than file_quota (%u) for file id==%u', __CLASS__, intval($headers['content-length']), common_config('attachments', 'file_quota'), $file->getID()));
+ return true;
+ }
+
+ $remoteUrl = $head->effectiveUrl; // to avoid going through redirects again
+ if (!$this->checkBlackList($remoteUrl)) {
+ common_log(LOG_WARN, sprintf('%s: Non-blacklisted URL %s redirected to blacklisted URL %s', __CLASS__, $file->getUrl(), $remoteUrl));
+ return true;
+ }
+
+ // Then we download the file to memory and test whether it's actually an image file
+ common_debug(sprintf('Downloading remote file id==%u with effective URL: %s', $file->getID(), _ve($remoteUrl)));
+ $imgData = $http->get($remoteUrl);