+ 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 $header String: some reasonably-sized chunk of file header
+ * @param $ext Mixed: the file extension, or true to extract it from the filename.
+ * Set it to false to ignore the extension.
+ *
+ * @return string
+ */
+ function detectZipType( $header, $ext = false ) {
+ $mime = 'application/zip';
+ $opendocTypes = array(
+ 'chart-template',
+ 'chart',
+ 'formula-template',
+ 'formula',
+ 'graphics-template',
+ 'graphics',
+ 'image-template',
+ 'image',
+ 'presentation-template',
+ 'presentation',
+ 'spreadsheet-template',
+ 'spreadsheet',
+ 'text-template',
+ 'text-master',
+ 'text-web',
+ 'text' );
+
+ // http://lists.oasis-open.org/archives/office/200505/msg00006.html
+ $types = '(?:' . implode( '|', $opendocTypes ) . ')';
+ $opendocRegex = "/^mimetype(application\/vnd\.oasis\.opendocument\.$types)/";
+ wfDebug( __METHOD__.": $opendocRegex\n" );
+
+ $openxmlRegex = "/^\[Content_Types\].xml/";
+
+ if( preg_match( $opendocRegex, substr( $header, 30 ), $matches ) ) {
+ $mime = $matches[1];
+ wfDebug( __METHOD__.": detected $mime from ZIP archive\n" );
+ } elseif( preg_match( $openxmlRegex, substr( $header, 30 ), $matches ) ) {
+ $mime = "application/x-opc+zip";
+ if( $ext !== true && $ext !== false ) {
+ /** This is the mode used by getPropsFromPath
+ * These mime's are stored in the database, where we don't really want
+ * x-opc+zip, because we use it only for internal purposes
+ */
+ if( $this->isMatchingExtension( $ext, $mime) ) {
+ /* A known file extension for an OPC file,
+ * find the proper mime type for that file extension */
+ $mime = $this->guessTypesForExtension( $ext );
+ } else {
+ $mime = 'application/zip';
+ }
+
+ }
+ wfDebug( __METHOD__.": detected an Open Packaging Conventions archive: $mime\n" );
+ } else {
+ wfDebug( __METHOD__.": unable to identify type of ZIP archive\n" );
+ }
dépôts / lhc / web / wiklou.git / blobdiff