* which when base64 encoded will result in a 1/3 increase in size.
*/
const EMBED_SIZE_LIMIT = 24576;
- const URL_REGEX = 'url\(\s*[\'"]?(?P<file>[^\?\)\:\'"]*)\??[^\)\'"]*[\'"]?\s*\)';
+ const URL_REGEX = 'url\(\s*[\'"]?(?P<file>[^\?\)\'"]*)\??[^\)\'"]*[\'"]?\s*\)';
/* Protected Static Members */
return $files;
}
+ protected static function getMimeType( $file ) {
+ $realpath = realpath( $file );
+ // Try a couple of different ways to get the mime-type of a file, in order of
+ // preference
+ if (
+ $realpath
+ && function_exists( 'finfo_file' )
+ && function_exists( 'finfo_open' )
+ && defined( 'FILEINFO_MIME_TYPE' )
+ ) {
+ // As of PHP 5.3, this is how you get the mime-type of a file; it uses the Fileinfo
+ // PECL extension
+ return finfo_file( finfo_open( FILEINFO_MIME_TYPE ), $realpath );
+ } else if ( function_exists( 'mime_content_type' ) ) {
+ // Before this was deprecated in PHP 5.3, this was how you got the mime-type of a file
+ return mime_content_type( $file );
+ } else {
+ // Worst-case scenario has happened, use the file extension to infer the mime-type
+ $ext = strtolower( pathinfo( $file, PATHINFO_EXTENSION ) );
+ if ( isset( self::$mimeTypes[$ext] ) ) {
+ return self::$mimeTypes[$ext];
+ }
+ }
+ return false;
+ }
+
/**
* Remaps CSS URL paths and automatically embeds data URIs for URL rules
* preceded by an /* @embed * / comment
self::URL_REGEX . '(?P<post>[^;]*)[\;]?/';
$offset = 0;
while ( preg_match( $pattern, $source, $match, PREG_OFFSET_CAPTURE, $offset ) ) {
+ // Skip absolute URIs
+ if ( preg_match( '/^https?:\/\//', $match['file'][0] ) ) {
+ // Move the offset to the end of the match, leaving it alone
+ $offset = $match[0][1] + strlen( $match[0][0] );
+ continue;
+ }
// Shortcuts
$embed = $match['embed'][0];
$pre = $match['pre'][0];
$post = $match['post'][0];
- $file = "{$local}/{$match['file'][0]}";
$url = "{$remote}/{$match['file'][0]}";
- // Only proceed if we can access the file
- if ( file_exists( $file ) ) {
+ $file = "{$local}/{$match['file'][0]}";
+ $replacement = false;
+ if ( $local !== false && file_exists( $file ) ) {
// Add version parameter as a time-stamp in ISO 8601 format,
// using Z for the timezone, meaning GMT
$url .= '?' . gmdate( 'Y-m-d\TH:i:s\Z', round( filemtime( $file ), -2 ) );
- // If we the mime-type can't be determined, no embedding will take place
- $type = false;
- $realpath = realpath( $file );
- // Try a couple of different ways to get the mime-type of a file,
- // in order of preference
- if ( $realpath
- && function_exists( 'finfo_file' ) && function_exists( 'finfo_open' )
- && defined( 'FILEINFO_MIME_TYPE' ) )
- {
- // As of PHP 5.3, this is how you get the mime-type of a file;
- // it uses the Fileinfo PECL extension
- $type = finfo_file( finfo_open( FILEINFO_MIME_TYPE ), $realpath );
- } else if ( function_exists( 'mime_content_type' ) ) {
- // Before this was deprecated in PHP 5.3,
- // this used to be how you get the mime-type of a file
- $type = mime_content_type( $file );
- } else {
- // Worst-case scenario has happened,
- // use the file extension to infer the mime-type
- $ext = strtolower( pathinfo( $file, PATHINFO_EXTENSION ) );
- if ( isset( self::$mimeTypes[$ext] ) ) {
- $type = self::$mimeTypes[$ext];
+ // Embedding requires a bit of extra processing, so let's skip that if we can
+ if ( $embed ) {
+ $type = self::getMimeType( $file );
+ // Detect when URLs were preceeded with embed tags, and also verify file size is
+ // below the limit
+ if (
+ $type
+ && $match['embed'][1] > 0
+ && filesize( $file ) < self::EMBED_SIZE_LIMIT
+ ) {
+ // Strip off any trailing = symbols (makes browsers freak out)
+ $data = base64_encode( file_get_contents( $file ) );
+ // Build 2 CSS properties; one which uses a base64 encoded data URI in place
+ // of the @embed comment to try and retain line-number integrity, and the
+ // other with a remapped an versioned URL and an Internet Explorer hack
+ // making it ignored in all browsers that support data URIs
+ $replacement = "{$pre}url(data:{$type};base64,{$data}){$post};";
+ $replacement .= "{$pre}url({$url}){$post}!ie;";
}
}
- // Detect when URLs were preceeded with embed tags,
- // and also verify file size is below the limit
- if ( $embed && $type && $match['embed'][1] > 0
- && filesize( $file ) < self::EMBED_SIZE_LIMIT )
- {
- // Strip off any trailing = symbols (makes browsers freak out)
- $data = base64_encode( file_get_contents( $file ) );
- // Build 2 CSS properties; one which uses a base64 encoded data URI
- // in place of the @embed comment to try and retain line-number integrity,
- // and the other with a remapped an versioned URL and an Internet Explorer
- // hack making it ignored in all browsers that support data URIs
- $replacement = "{$pre}url(data:{$type};base64,{$data}){$post};";
- $replacement .= "{$pre}url({$url}){$post}!ie;";
- } else {
- // Build a CSS property with a remapped and versioned URL,
- // preserving comment for debug mode
- $replacement = "{$embed}{$pre}url({$url}){$post};";
+ if ( $replacement === false ) {
+ // Assume that all paths are relative to $remote, and make them absolute
+ $replacement = "{$embed}{$pre}url({$url}){$post};";
}
-
+ } else if ( $local === false ) {
+ // Assume that all paths are relative to $remote, and make them absolute
+ $replacement = "{$embed}{$pre}url({$url}){$post};";
+ }
+ if ( $replacement !== false ) {
// Perform replacement on the source
- $source = substr_replace( $source,
- $replacement, $match[0][1], strlen( $match[0][0] ) );
+ $source = substr_replace(
+ $source, $replacement, $match[0][1], strlen( $match[0][0] )
+ );
// Move the offset to the end of the replacement in the source
$offset = $match[0][1] + strlen( $replacement );
continue;
}
return $source;
}
-
+
/**
* Removes whitespace from CSS data
*
dépôts / lhc / web / wiklou.git / commitdiff