<?php
/** Module defining helper functions for detecting and dealing with mime types.
*
- * @package MediaWiki
*/
/** Defines a set of well known mime types
* This is used as a fallback to mime.types files.
- * An extensive list of well known mime types is provided by
+ * An extensive list of well known mime types is provided by
* the file mime.types in the includes directory.
*/
define('MM_WELL_KNOWN_MIME_TYPES',<<<END_STRING
image/gif gif
image/jpeg jpeg jpg jpe
image/png png
-image/svg+xml svg
+image/svg+xml image/svg svg
image/tiff tiff tif
+image/vnd.djvu djvu
+image/x-portable-pixmap ppm
text/plain txt
-text/html html htm
+text/html html htm
video/ogg ogm ogg
video/mpeg mpg mpeg
END_STRING
/** Defines a set of well known mime info entries
* This is used as a fallback to mime.info files.
- * An extensive list of well known mime types is provided by
+ * An extensive list of well known mime types is provided by
* the file mime.info in the includes directory.
*/
define('MM_WELL_KNOWN_MIME_INFO', <<<END_STRING
image/gif [BITMAP]
image/jpeg [BITMAP]
image/png [BITMAP]
-image/svg image/svg+xml [DRAWING]
+image/svg+xml [DRAWING]
image/tiff [BITMAP]
+image/vnd.djvu [BITMAP]
+image/x-portable-pixmap [BITMAP]
text/plain [TEXT]
text/html [TEXT]
video/ogg [VIDEO]
END_STRING
);
-#note: because this file is possibly included by a function,
+#note: because this file is possibly included by a function,
#we need to access the global scope explicitely!
global $wgLoadFileinfoExtension;
-if ($wgLoadFileinfoExtension) {
+if ($wgLoadFileinfoExtension) {
if(!extension_loaded('fileinfo')) dl('fileinfo.' . PHP_SHLIB_SUFFIX);
}
-/** Implements functions related to mime types such as detection and mapping to
-* file extension,
-*
-* Instances of this class are stateles, there only needs to be one global instance
-* of MimeMagic. Please use wfGetMimeMagic to get that instance.
-* @package MediaWiki
-*/
+/**
+ * Implements functions related to mime types such as detection and mapping to
+ * file extension.
+ *
+ * Instances of this class are stateles, there only needs to be one global instance
+ * of MimeMagic. Please use MimeMagic::singleton() to get that instance.
+ */
class MimeMagic {
-
+
/**
* Mapping of media types to arrays of mime types.
* This is used by findMediaType and getMediaType, respectively
*/
- var $mMediaTypes= NULL;
-
+ var $mMediaTypes= NULL;
+
/** Map of mime type aliases
*/
var $mMimeTypeAliases= NULL;
-
+
/** map of mime types to file extensions (as a space seprarated list)
*/
- var $mMimeToExt= NULL;
-
+ var $mMimeToExt= NULL;
+
/** map of file extensions types to mime types (as a space seprarated list)
*/
- var $mExtToMime= NULL;
-
- /** Initializes the MimeMagic object. This is called by wfGetMimeMagic when instantiation
- * the global MimeMagic singleton object.
+ var $mExtToMime= NULL;
+
+ /** The singleton instance
+ */
+ private static $instance;
+
+ /** Initializes the MimeMagic object. This is called by MimeMagic::singleton().
*
* This constructor parses the mime.types and mime.info files and build internal mappings.
*/
- function MimeMagic() {
+ function __construct() {
/*
* --- load mime.types ---
*/
-
+
global $wgMimeTypeFile;
-
+
$types= MM_WELL_KNOWN_MIME_TYPES;
-
+
if ($wgMimeTypeFile) {
if (is_file($wgMimeTypeFile) and is_readable($wgMimeTypeFile)) {
wfDebug("MimeMagic::MimeMagic: loading mime types from $wgMimeTypeFile\n");
-
+
$types.= "\n";
$types.= file_get_contents($wgMimeTypeFile);
}
else wfDebug("MimeMagic::MimeMagic: can't load mime types from $wgMimeTypeFile\n");
}
else wfDebug("MimeMagic::MimeMagic: no mime types file defined, using build-ins only.\n");
-
+
$types= str_replace(array("\r\n","\n\r","\n\n","\r\r","\r"),"\n",$types);
$types= str_replace("\t"," ",$types);
-
+
$this->mMimeToExt= array();
$this->mToMime= array();
-
+
$lines= explode("\n",$types);
foreach ($lines as $s) {
$s= trim($s);
if (empty($s)) continue;
if (strpos($s,'#')===0) continue;
-
+
$s= strtolower($s);
$i= strpos($s,' ');
-
+
if ($i===false) continue;
-
+
#print "processing MIME line $s<br>";
-
+
$mime= substr($s,0,$i);
$ext= trim(substr($s,$i+1));
-
+
if (empty($ext)) continue;
-
- if (@$this->mMimeToExt[$mime]) $this->mMimeToExt[$mime] .= ' '.$ext;
+
+ if ( !empty($this->mMimeToExt[$mime])) $this->mMimeToExt[$mime] .= ' '.$ext;
else $this->mMimeToExt[$mime]= $ext;
-
+
$extensions= explode(' ',$ext);
-
+
foreach ($extensions as $e) {
$e= trim($e);
if (empty($e)) continue;
-
- if (@$this->mExtToMime[$e]) $this->mExtToMime[$e] .= ' '.$mime;
+
+ if ( !empty($this->mExtToMime[$e])) $this->mExtToMime[$e] .= ' '.$mime;
else $this->mExtToMime[$e]= $mime;
}
}
-
+
/*
* --- load mime.info ---
*/
-
+
global $wgMimeInfoFile;
-
+
$info= MM_WELL_KNOWN_MIME_INFO;
-
+
if ($wgMimeInfoFile) {
if (is_file($wgMimeInfoFile) and is_readable($wgMimeInfoFile)) {
wfDebug("MimeMagic::MimeMagic: loading mime info from $wgMimeInfoFile\n");
-
+
$info.= "\n";
$info.= file_get_contents($wgMimeInfoFile);
}
else wfDebug("MimeMagic::MimeMagic: can't load mime info from $wgMimeInfoFile\n");
}
else wfDebug("MimeMagic::MimeMagic: no mime info file defined, using build-ins only.\n");
-
+
$info= str_replace(array("\r\n","\n\r","\n\n","\r\r","\r"),"\n",$info);
$info= str_replace("\t"," ",$info);
-
+
$this->mMimeTypeAliases= array();
$this->mMediaTypes= array();
-
+
$lines= explode("\n",$info);
foreach ($lines as $s) {
$s= trim($s);
if (empty($s)) continue;
if (strpos($s,'#')===0) continue;
-
+
$s= strtolower($s);
$i= strpos($s,' ');
-
+
if ($i===false) continue;
-
+
#print "processing MIME INFO line $s<br>";
-
+
$match= array();
if (preg_match('!\[\s*(\w+)\s*\]!',$s,$match)) {
$s= preg_replace('!\[\s*(\w+)\s*\]!','',$s);
$mtype= trim(strtoupper($match[1]));
}
else $mtype= MEDIATYPE_UNKNOWN;
-
+
$m= explode(' ',$s);
-
+
if (!isset($this->mMediaTypes[$mtype])) $this->mMediaTypes[$mtype]= array();
-
+
foreach ($m as $mime) {
$mime= trim($mime);
if (empty($mime)) continue;
-
+
$this->mMediaTypes[$mtype][]= $mime;
}
-
+
if (sizeof($m)>1) {
$main= $m[0];
for ($i=1; $i<sizeof($m); $i+= 1) {
}
}
}
-
+
+ }
+
+ /**
+ * Get an instance of this class
+ */
+ static function &singleton() {
+ if ( !isset( self::$instance ) ) {
+ self::$instance = new MimeMagic;
+ }
+ return self::$instance;
}
-
+
/** returns a list of file extensions for a given mime type
* as a space separated string.
*/
function getExtensionsForType($mime) {
$mime= strtolower($mime);
-
+
$r= @$this->mMimeToExt[$mime];
-
+
if (@!$r and isset($this->mMimeTypeAliases[$mime])) {
$mime= $this->mMimeTypeAliases[$mime];
$r= @$this->mMimeToExt[$mime];
}
-
+
return $r;
}
-
+
/** returns a list of mime types for a given file extension
* as a space separated string.
*/
function getTypesForExtension($ext) {
$ext= strtolower($ext);
-
- $r= @$this->mExtToMime[$ext];
+
+ $r= isset( $this->mExtToMime[$ext] ) ? $this->mExtToMime[$ext] : null;
return $r;
}
-
+
/** returns a single mime type for a given file extension.
* This is always the first type from the list returned by getTypesForExtension($ext).
*/
function guessTypesForExtension($ext) {
$m= $this->getTypesForExtension( $ext );
if( is_null($m) ) return NULL;
-
+
$m= trim( $m );
$m= preg_replace('/\s.*$/','',$m);
-
+
return $m;
}
-
-
+
+
/** tests if the extension matches the given mime type.
- * returns true if a match was found, NULL if the mime type is unknown,
+ * returns true if a match was found, NULL if the mime type is unknown,
* and false if the mime type is known but no matches where found.
*/
function isMatchingExtension($extension,$mime) {
$ext= $this->getExtensionsForType($mime);
-
+
if (!$ext) {
return NULL; //unknown
}
-
+
$ext= explode(' ',$ext);
-
+
$extension= strtolower($extension);
if (in_array($extension,$ext)) {
return true;
}
-
+
return false;
}
-
+
/** returns true if the mime type is known to represent
* an image format supported by the PHP GD library.
*/
function isPHPImageType( $mime ) {
#as defined by imagegetsize and image_type_to_mime
- static $types = array(
- 'image/gif', 'image/jpeg', 'image/png',
+ static $types = array(
+ 'image/gif', 'image/jpeg', 'image/png',
'image/x-bmp', 'image/xbm', 'image/tiff',
- 'image/jp2', 'image/jpeg2000', 'image/iff',
+ 'image/jp2', 'image/jpeg2000', 'image/iff',
'image/xbm', 'image/x-xbitmap',
- 'image/vnd.wap.wbmp', 'image/vnd.xiff',
+ 'image/vnd.wap.wbmp', 'image/vnd.xiff',
'image/x-photoshop',
'application/x-shockwave-flash',
- );
-
+ );
+
return in_array( $mime, $types );
}
-
+
/**
* Returns true if the extension represents a type which can
* be reliably detected from its content. Use this to determine
'gif', 'jpeg', 'jpg', 'png', 'swf', 'psd',
'bmp', 'tiff', 'tif', 'jpc', 'jp2',
'jpx', 'jb2', 'swc', 'iff', 'wbmp',
- 'xbm'
+ 'xbm', 'djvu'
);
return in_array( strtolower( $extension ), $types );
}
-
-
- /** mime type detection. This uses detectMimeType to detect the mim type of the file,
+
+
+ /** mime type detection. This uses detectMimeType to detect the mime type of the file,
* but applies additional checks to determine some well known file formats that may be missed
* or misinterpreter by the default mime detection (namely xml based formats like XHTML or SVG).
*
function guessMimeType( $file, $useExt=true ) {
$fname = 'MimeMagic::guessMimeType';
$mime= $this->detectMimeType($file,$useExt);
-
- if (strpos($mime,"text/")===0 ||
- $mime==="application/xml") {
-
- // Read a chunk of the file
- $f = fopen( $file, "rt" );
- if( !$f ) return "unknown/unknown";
- $head = fread( $f, 1024 );
- fclose( $f );
-
+
+ // Read a chunk of the file
+ $f = fopen( $file, "rt" );
+ if( !$f ) return "unknown/unknown";
+ $head = fread( $f, 1024 );
+ fclose( $f );
+
+ $sub4 = substr( $head, 0, 4 );
+ if ( $sub4 == "\x01\x00\x09\x00" || $sub4 == "\xd7\xcd\xc6\x9a" ) {
+ // WMF kill kill kill
+ // Note that WMF may have a bare header, no magic number.
+ // The former of the above two checks is theoretically prone to false positives
+ $mime = "application/x-msmetafile";
+ }
+
+ if (strpos($mime,"text/")===0 || $mime==="application/xml") {
+
$xml_type= NULL;
$script_type= NULL;
-
+
/*
* look for XML formats (XHTML and SVG)
*/
$mime==="text/html" ||
$mime==="text/xml" ||
$mime==="application/xml") {
-
- if (substr($head,0,5)=="<?xml") $xml_type= "ASCII";
- elseif (substr($head,0,8)=="\xef\xbb\xbf<?xml") $xml_type= "UTF-8";
- elseif (substr($head,0,10)=="\xfe\xff\x00<\x00?\x00x\x00m\x00l") $xml_type= "UTF-16BE";
- elseif (substr($head,0,10)=="\xff\xfe<\x00?\x00x\x00m\x00l\x00") $xml_type= "UTF-16LE";
-
+
+ if (substr($head,0,5)=="<?xml") $xml_type= "ASCII";
+ elseif (substr($head,0,8)=="\xef\xbb\xbf<?xml") $xml_type= "UTF-8";
+ elseif (substr($head,0,10)=="\xfe\xff\x00<\x00?\x00x\x00m\x00l") $xml_type= "UTF-16BE";
+ elseif (substr($head,0,10)=="\xff\xfe<\x00?\x00x\x00m\x00l\x00") $xml_type= "UTF-16LE";
+
if ($xml_type) {
if ($xml_type!=="UTF-8" && $xml_type!=="ASCII") $head= iconv($xml_type,"ASCII//IGNORE",$head);
-
+
$match= array();
$doctype= "";
$tag= "";
-
+
if (preg_match('%<!DOCTYPE\s+[\w-]+\s+PUBLIC\s+["'."'".'"](.*?)["'."'".'"].*>%sim',$head,$match)) $doctype= $match[1];
if (preg_match('%<(\w+).*>%sim',$head,$match)) $tag= $match[1];
-
+
#print "<br>ANALYSING $file ($mime): doctype= $doctype; tag= $tag<br>";
-
- if (strpos($doctype,"-//W3C//DTD SVG")===0) $mime= "image/svg";
- elseif ($tag==="svg") $mime= "image/svg";
+
+ if (strpos($doctype,"-//W3C//DTD SVG")===0) $mime= "image/svg+xml";
+ elseif ($tag==="svg") $mime= "image/svg+xml";
elseif (strpos($doctype,"-//W3C//DTD XHTML")===0) $mime= "text/html";
elseif ($tag==="html") $mime= "text/html";
-
- $test_more= false;
}
}
-
+
/*
* look for shell scripts
*/
if (!$xml_type) {
$script_type= NULL;
-
+
#detect by shebang
- if (substr($head,0,2)=="#!") $script_type= "ASCII";
- elseif (substr($head,0,5)=="\xef\xbb\xbf#!") $script_type= "UTF-8";
- elseif (substr($head,0,7)=="\xfe\xff\x00#\x00!") $script_type= "UTF-16BE";
- elseif (substr($head,0,7)=="\xff\xfe#\x00!") $script_type= "UTF-16LE";
-
+ if (substr($head,0,2)=="#!") $script_type= "ASCII";
+ elseif (substr($head,0,5)=="\xef\xbb\xbf#!") $script_type= "UTF-8";
+ elseif (substr($head,0,7)=="\xfe\xff\x00#\x00!") $script_type= "UTF-16BE";
+ elseif (substr($head,0,7)=="\xff\xfe#\x00!") $script_type= "UTF-16LE";
+
if ($script_type) {
if ($script_type!=="UTF-8" && $script_type!=="ASCII") $head= iconv($script_type,"ASCII//IGNORE",$head);
-
+
$match= array();
$prog= "";
-
- if (preg_match('%/?([^\s]+/)(w+)%sim',$head,$match)) $script= $match[2];
-
+
+ if (preg_match('%/?([^\s]+/)(w+)%sim',$head,$match)) {
+ $script= $match[2]; // FIXME: $script variable not used; should this be "$prog = $match[2];" instead?
+ }
+
$mime= "application/x-$prog";
}
}
-
+
/*
* look for PHP
*/
if( !$xml_type && !$script_type ) {
-
- if( ( strpos( $head, '<?php' ) !== false ) ||
+
+ if( ( strpos( $head, '<?php' ) !== false ) ||
( strpos( $head, '<? ' ) !== false ) ||
( strpos( $head, "<?\n" ) !== false ) ||
( strpos( $head, "<?\t" ) !== false ) ||
( strpos( $head, "<?=" ) !== false ) ||
-
- ( strpos( $head, "<\x00?\x00p\x00h\x00p" ) !== false ) ||
+
+ ( strpos( $head, "<\x00?\x00p\x00h\x00p" ) !== false ) ||
( strpos( $head, "<\x00?\x00 " ) !== false ) ||
( strpos( $head, "<\x00?\x00\n" ) !== false ) ||
( strpos( $head, "<\x00?\x00\t" ) !== false ) ||
( strpos( $head, "<\x00?\x00=" ) !== false ) ) {
-
+
$mime= "application/x-php";
}
}
-
+
}
-
+
if (isset($this->mMimeTypeAliases[$mime])) $mime= $this->mMimeTypeAliases[$mime];
-
+
wfDebug("$fname: final mime type of $file: $mime\n");
return $mime;
}
-
- /** Internal mime type detection, please use guessMimeType() for application code instead.
+
+ /** Internal mime type detection, please use guessMimeType() for application code instead.
* Detection is done using an external program, if $wgMimeDetectorCommand is set.
- * Otherwise, the fileinfo extension and mime_content_type are tried (in this order), if they are available.
- * If the dections fails and $useExt is true, the mime type is guessed from the file extension, using guessTypesForExtension.
+ * Otherwise, the fileinfo extension and mime_content_type are tried (in this order), if they are available.
+ * If the dections fails and $useExt is true, the mime type is guessed from the file extension, using guessTypesForExtension.
* If the mime type is still unknown, getimagesize is used to detect the mime type if the file is an image.
* If no mime type can be determined, this function returns "unknown/unknown".
*
* @param bool $useExt switch for allowing to use the file extension to guess the mime type. true by default.
*
* @return string the mime type of $file
- * @private
+ * @access private
*/
function detectMimeType( $file, $useExt=true ) {
$fname = 'MimeMagic::detectMimeType';
-
+
global $wgMimeDetectorCommand;
-
+
$m= NULL;
if ($wgMimeDetectorCommand) {
$fn= wfEscapeShellArg($file);
$m= `$wgMimeDetectorCommand $fn`;
}
else if (function_exists("finfo_open") && function_exists("finfo_file")) {
-
+
# This required the fileinfo extension by PECL,
# see http://pecl.php.net/package/fileinfo
# This must be compiled into PHP
#
- # finfo is the official replacement for the deprecated
+ # finfo is the official replacement for the deprecated
# mime_content_type function, see below.
#
# If you may need to load the fileinfo extension at runtime, set
# $wgLoadFileinfoExtension in LocalSettings.php
-
+
$mime_magic_resource = finfo_open(FILEINFO_MIME); /* return mime type ala mimetype extension */
-
+
if ($mime_magic_resource) {
$m= finfo_file($mime_magic_resource, $file);
-
+
finfo_close($mime_magic_resource);
}
else wfDebug("$fname: finfo_open failed on ".FILEINFO_MIME."!\n");
}
- else if (function_exists("mime_content_type")) {
-
+ else if (function_exists("mime_content_type")) {
+
# NOTE: this function is available since PHP 4.3.0, but only if
# PHP was compiled with --with-mime-magic or, before 4.3.2, with --enable-mime-magic.
#
- # On Winodws, you must set mime_magic.magicfile in php.ini to point to the mime.magic file bundeled with PHP;
+ # On Windows, you must set mime_magic.magicfile in php.ini to point to the mime.magic file bundeled with PHP;
# sometimes, this may even be needed under linus/unix.
#
# Also note that this has been DEPRECATED in favor of the fileinfo extension by PECL, see above.
# see http://www.php.net/manual/en/ref.mime-magic.php for details.
-
+
$m= mime_content_type($file);
+
+ if ( $m == 'text/plain' ) {
+ // mime_content_type sometimes considers DJVU files to be text/plain.
+ $deja = new DjVuImage( $file );
+ if( $deja->isValid() ) {
+ wfDebug("$fname: (re)detected $file as image/vnd.djvu\n");
+ $m = 'image/vnd.djvu';
+ }
+ }
}
else wfDebug("$fname: no magic mime detector found!\n");
-
- if ($m) {
+
+ if ($m) {
#normalize
$m= preg_replace('![;, ].*$!','',$m); #strip charset, etc
$m= trim($m);
$m= strtolower($m);
-
+
if (strpos($m,'unknown')!==false) $m= NULL;
else {
wfDebug("$fname: magic mime type of $file: $m\n");
return $m;
}
}
-
+
#if still not known, use getimagesize to find out the type of image
#TODO: skip things that do not have a well-known image extension? Would that be safe?
wfSuppressWarnings();
$gis = getimagesize( $file );
wfRestoreWarnings();
-
+
$notAnImage= false;
-
+
if ($gis && is_array($gis) && $gis[2]) {
switch ($gis[2]) {
case IMAGETYPE_GIF: $m= "image/gif"; break;
case IMAGETYPE_WBMP: $m= "image/vnd.wap.wbmp"; break;
case IMAGETYPE_XBM: $m= "image/x-xbitmap"; break;
}
-
+
if ($m) {
wfDebug("$fname: image mime type of $file: $m\n");
return $m;
}
else $notAnImage= true;
+ } else {
+ // Also test DjVu
+ $deja = new DjVuImage( $file );
+ if( $deja->isValid() ) {
+ wfDebug("$fname: detected $file as image/vnd.djvu\n");
+ return 'image/vnd.djvu';
+ }
}
-
+
#if desired, look at extension as a fallback.
if ($useExt) {
$i = strrpos( $file, '.' );
$e= strtolower( $i ? substr( $file, $i + 1 ) : '' );
-
+
$m= $this->guessTypesForExtension($e);
-
- #TODO: if $notAnImage is set, do not trust the file extension if
- # the results is one of the image types that should have been recognized
+
+ #TODO: if $notAnImage is set, do not trust the file extension if
+ # the results is one of the image types that should have been recognized
# by getimagesize
-
+
if ($m) {
wfDebug("$fname: extension mime type of $file: $m\n");
return $m;
}
}
-
- #unknown type
+
+ #unknown type
wfDebug("$fname: failed to guess mime type for $file!\n");
return "unknown/unknown";
}
-
+
/**
* Determine the media type code for a file, using its mime type, name and possibly
* its contents.
*
- * This function relies on the findMediaType(), mapping extensions and mime
+ * This function relies on the findMediaType(), mapping extensions and mime
* types to media types.
*
- * @todo analyse file if need be
+ * @todo analyse file if need be
* @todo look at multiple extension, separately and together.
*
- * @param string $path full path to the image file, in case we have to look at the contents
+ * @param string $path full path to the image file, in case we have to look at the contents
* (if null, only the mime type is used to determine the media type code).
* @param string $mime mime type. If null it will be guessed using guessMimeType.
- *
+ *
* @return (int?string?) a value to be used with the MEDIATYPE_xxx constants.
*/
function getMediaType($path=NULL,$mime=NULL) {
if( !$mime && !$path ) return MEDIATYPE_UNKNOWN;
-
+
#if mime type is unknown, guess it
if( !$mime ) $mime= $this->guessMimeType($path,false);
#special code for ogg - detect if it's video (theora),
#else label it as sound.
if( $mime=="application/ogg" && file_exists($path) ) {
-
+
// Read a chunk of the file
$f = fopen( $path, "rt" );
if( !$f ) return MEDIATYPE_UNKNOWN;
$head = fread( $f, 256 );
fclose( $f );
-
+
$head= strtolower( $head );
-
+
#This is an UGLY HACK, file should be parsed correctly
if( strpos($head,'theora')!==false ) return MEDIATYPE_VIDEO;
elseif( strpos($head,'vorbis')!==false ) return MEDIATYPE_AUDIO;
elseif( strpos($head,'flac')!==false ) return MEDIATYPE_AUDIO;
elseif( strpos($head,'speex')!==false ) return MEDIATYPE_AUDIO;
else return MEDIATYPE_MULTIMEDIA;
- }
-
+ }
+
#check for entry for full mime type
if( $mime ) {
$type= $this->findMediaType($mime);
if( $type!==MEDIATYPE_UNKNOWN ) return $type;
}
-
+
#check for entry for file extension
$e= NULL;
if( $path ) {
$i = strrpos( $path, '.' );
$e= strtolower( $i ? substr( $path, $i + 1 ) : '' );
-
+
#TODO: look at multi-extension if this fails, parse from full path
-
+
$type= $this->findMediaType('.'.$e);
if( $type!==MEDIATYPE_UNKNOWN ) return $type;
}
-
+
#check major mime type
if( $mime ) {
$i= strpos($mime,'/');
if( $type!==MEDIATYPE_UNKNOWN ) return $type;
}
}
-
+
if( !$type ) $type= MEDIATYPE_UNKNOWN;
-
+
return $type;
}
-
+
/** returns a media code matching the given mime type or file extension.
- * File extensions are represented by a string starting with a dot (.) to
+ * File extensions are represented by a string starting with a dot (.) to
* distinguish them from mime types.
*
* This funktion relies on the mapping defined by $this->mMediaTypes
- * @private
+ * @access private
*/
function findMediaType($extMime) {
-
+
if (strpos($extMime,'.')===0) { #if it's an extension, look up the mime types
$m= $this->getTypesForExtension(substr($extMime,1));
if (!$m) return MEDIATYPE_UNKNOWN;
-
+
$m= explode(' ',$m);
}
else { #normalize mime type
if (isset($this->mMimeTypeAliases[$extMime])) {
$extMime= $this->mMimeTypeAliases[$extMime];
}
-
+
$m= array($extMime);
}
-
+
foreach ($m as $mime) {
foreach ($this->mMediaTypes as $type => $codes) {
if (in_array($mime,$codes,true)) return $type;
}
}
-
+
return MEDIATYPE_UNKNOWN;
}
}
dépôts / lhc / web / wiklou.git / blobdiff