diff options
Diffstat (limited to 'includes/MimeMagic.php')
| -rw-r--r-- | includes/MimeMagic.php | 90 |
1 files changed, 86 insertions, 4 deletions
diff --git a/includes/MimeMagic.php b/includes/MimeMagic.php index e33b1c0a..4797752d 100644 --- a/includes/MimeMagic.php +++ b/includes/MimeMagic.php @@ -11,6 +11,22 @@ define('MM_WELL_KNOWN_MIME_TYPES',<<<END_STRING application/ogg ogg ogm ogv application/pdf pdf +application/vnd.oasis.opendocument.chart odc +application/vnd.oasis.opendocument.chart-template otc +application/vnd.oasis.opendocument.formula odf +application/vnd.oasis.opendocument.formula-template otf +application/vnd.oasis.opendocument.graphics odg +application/vnd.oasis.opendocument.graphics-template otg +application/vnd.oasis.opendocument.image odi +application/vnd.oasis.opendocument.image-template oti +application/vnd.oasis.opendocument.presentation odp +application/vnd.oasis.opendocument.presentation-template otp +application/vnd.oasis.opendocument.spreadsheet ods +application/vnd.oasis.opendocument.spreadsheet-template ots +application/vnd.oasis.opendocument.text odt +application/vnd.oasis.opendocument.text-template ott +application/vnd.oasis.opendocument.text-master otm +application/vnd.oasis.opendocument.text-web oth application/x-javascript js application/x-shockwave-flash swf audio/midi mid midi kar @@ -41,6 +57,22 @@ END_STRING */ define('MM_WELL_KNOWN_MIME_INFO', <<<END_STRING application/pdf [OFFICE] +application/vnd.oasis.opendocument.chart [OFFICE] +application/vnd.oasis.opendocument.chart-template [OFFICE] +application/vnd.oasis.opendocument.formula [OFFICE] +application/vnd.oasis.opendocument.formula-template [OFFICE] +application/vnd.oasis.opendocument.graphics [OFFICE] +application/vnd.oasis.opendocument.graphics-template [OFFICE] +application/vnd.oasis.opendocument.image [OFFICE] +application/vnd.oasis.opendocument.image-template [OFFICE] +application/vnd.oasis.opendocument.presentation [OFFICE] +application/vnd.oasis.opendocument.presentation-template [OFFICE] +application/vnd.oasis.opendocument.spreadsheet [OFFICE] +application/vnd.oasis.opendocument.spreadsheet-template [OFFICE] +application/vnd.oasis.opendocument.text [OFFICE] +application/vnd.oasis.opendocument.text-template [OFFICE] +application/vnd.oasis.opendocument.text-master [OFFICE] +application/vnd.oasis.opendocument.text-web [OFFICE] text/javascript application/x-javascript [EXECUTABLE] application/x-shockwave-flash [MULTIMEDIA] audio/midi [AUDIO] @@ -406,6 +438,8 @@ class MimeMagic { wfRestoreWarnings(); if( !$f ) return "unknown/unknown"; $head = fread( $f, 1024 ); + fseek( $f, -65558, SEEK_END ); + $tail = fread( $f, 65558 ); // 65558 = maximum size of a zip EOCDR fclose( $f ); // Hardcode a few magic number checks... @@ -462,8 +496,8 @@ class MimeMagic { $xml = new XmlTypeCheck( $file ); if( $xml->wellFormed ) { global $wgXMLMimeTypes; - if( isset( $wgXMLMimeTypes[$xml->rootElement] ) ) { - return $wgXMLMimeTypes[$xml->rootElement]; + if( isset( $wgXMLMimeTypes[$xml->getRootElement()] ) ) { + return $wgXMLMimeTypes[$xml->getRootElement()]; } else { return 'application/xml'; } @@ -509,6 +543,12 @@ class MimeMagic { } } + // Check for ZIP (before getimagesize) + if ( strpos( $tail, "PK\x05\x06" ) !== false ) { + wfDebug( __METHOD__.": ZIP header present at end of $file\n" ); + return $this->detectZipType( $head ); + } + wfSuppressWarnings(); $gis = getimagesize( $file ); wfRestoreWarnings(); @@ -517,8 +557,6 @@ class MimeMagic { $mime = $gis['mime']; wfDebug( __METHOD__.": getimagesize detected $file as $mime\n" ); return $mime; - } else { - return false; } // Also test DjVu @@ -527,6 +565,50 @@ class MimeMagic { wfDebug( __METHOD__.": detected $file as image/vnd.djvu\n" ); return 'image/vnd.djvu'; } + + return false; + } + + /** + * Detect application-specific file type of a given ZIP file from its + * header data. Currently works for OpenDocument types... + * If can't tell, returns 'application/zip'. + * + * @param string $header Some reasonably-sized chunk of file header + * @return string + */ + function detectZipType( $header ) { + $opendocTypes = array( + 'chart', + 'chart-template', + 'formula', + 'formula-template', + 'graphics', + 'graphics-template', + 'image', + 'image-template', + 'presentation', + 'presentation-template', + 'spreadsheet', + 'spreadsheet-template', + 'text', + 'text-template', + 'text-master', + 'text-web' ); + + // http://lists.oasis-open.org/archives/office/200505/msg00006.html + $types = '(?:' . implode( '|', $opendocTypes ) . ')'; + $opendocRegex = "/^mimetype(application\/vnd\.oasis\.opendocument\.$types)/"; + wfDebug( __METHOD__.": $opendocRegex\n" ); + + if( preg_match( $opendocRegex, substr( $header, 30 ), $matches ) ) { + $mime = $matches[1]; + wfDebug( __METHOD__.": detected $mime from ZIP archive\n" ); + return $mime; + } else { + wfDebug( __METHOD__.": unable to identify type of ZIP archive\n" ); + return 'application/zip'; + } } /** Internal mime type detection, please use guessMimeType() for application code instead. |