823      * @param string $media file id
831     public function getMedia($media, $rev = 0)  argument
833         $media = cleanID($media);
834         if (auth_quickaclcheck($media) < AUTH_READ) {
839         if ($this->isCurrentMediaRev($media, $rev)) {
843         $file = mediaFN($media, $rev);
859      * @param string $media file id
868     public function getMediaInfo($media, $rev = 0, $author = false, $hash = false)  argument
870         $media = cleanID($media);
871         if (auth_quickaclcheck($media) < AUTH_READ) {
876         if ($this->isCurrentMediaRev($media, $rev)) {
880         if (!media_exists($media, $rev)) {
884         $info = new Media($media, $rev);
900      * @param string $media file id
905     public function getMediaUsage($media)  argument
907         $media = cleanID($media);
908         if (auth_quickaclcheck($media) < AUTH_READ) {
911         if (!media_exists($media)) {
915         return ft_mediause($media);
927      * @param string $media file id
934     public function getMediaHistory($media, $first = 0)  argument
938         $media = cleanID($media);
940         if (auth_quickaclcheck($media) < AUTH_READ) {
943         if (!media_exists($media, 0)) {
947         $medialog = new MediaChangeLog($media);
955             $check = $this->isCurrentMediaRev($media, $rev) ? '' : $rev;
956             if (!media_exists($media, $check)) continue; // skip non-existing revisions
961                 $media,
980      * @param string $media media id
987     public function saveMedia($media, $base64, $overwrite = false)  argument
989         $media = cleanID($media);
990         $auth = auth_quickaclcheck(getNS($media) . ':*');
992         if ($media === '') {
1016         $ftmp = $conf['tmpdir'] . '/' . md5($media . clientIP());
1020         $res = media_save(['name' => $ftmp], $media, $overwrite, $auth, 'rename');
1032      * @param string $media media id
1039     public function deleteMedia($media)  argument
1041         $media = cleanID($media);
1043         $auth = auth_quickaclcheck($media);
1044         $res = media_delete($media, $auth);
1051         } elseif (!media_exists($media)) {