7 if ( !defined( 'MEDIAWIKI' ) ) {
12 * Function converts an Javascript escaped string back into a string with
13 * specified charset (default is UTF-8).
14 * Modified function from http://pure-essence.net/stuff/code/utf8RawUrlDecode.phps
16 * @param $source String escaped with Javascript's escape() function
17 * @param $iconv_to String destination character set will be used as second parameter
18 * in the iconv function. Default is UTF-8.
21 function js_unescape( $source, $iconv_to = 'UTF-8' ) {
24 $len = strlen ( $source );
26 while ( $pos < $len ) {
27 $charAt = substr ( $source, $pos, 1 );
28 if ( $charAt == '%' ) {
30 $charAt = substr ( $source, $pos, 1 );
31 if ( $charAt == 'u' ) {
32 // we got a unicode character
34 $unicodeHexVal = substr ( $source, $pos, 4 );
35 $unicode = hexdec ( $unicodeHexVal );
36 $decodedStr .= code2utf( $unicode );
39 // we have an escaped ascii character
40 $hexVal = substr ( $source, $pos, 2 );
41 $decodedStr .= chr ( hexdec ( $hexVal ) );
45 $decodedStr .= $charAt;
50 if ( $iconv_to != "UTF-8" ) {
51 $decodedStr = iconv( "UTF-8", $iconv_to, $decodedStr );
58 * Function coverts number of utf char into that character.
59 * Function taken from: http://www.php.net/manual/en/function.utf8-encode.php#49336
64 function code2utf( $num ) {
68 return chr( ( $num >> 6 ) +
192 ) . chr( ( $num&63 ) +
128 );
70 return chr( ( $num >> 12 ) +
224 ) . chr( ( ( $num >> 6 )&63 ) +
128 ) . chr( ( $num&63 ) +
128 );
72 return chr( ( $num >> 18 ) +
240 ) . chr( ( ( $num >> 12 )&63 ) +
128 ) . chr( ( ( $num >> 6 )&63 ) +
128 ) . chr( ( $num&63 ) +
128 );
77 * Called for AJAX watch/unwatch requests.
78 * @param $pagename Prefixed title string for page to watch/unwatch
79 * @param $watch String 'w' to watch, 'u' to unwatch
80 * @return String '<w#>' or '<u#>' on successful watch or unwatch,
81 * respectively, followed by an HTML message to display in the alert box; or
84 function wfAjaxWatch( $pagename = "", $watch = "" ) {
86 // redirect to action=(un)watch, which will display the database lock
91 if ( 'w' !== $watch && 'u' !== $watch ) {
94 $watch = 'w' === $watch;
96 $title = Title
::newFromDBkey( $pagename );
101 $article = new Article( $title );
102 $watching = $title->userIsWatching();
106 $dbw = wfGetDB( DB_MASTER
);
108 $ok = $article->doWatch();
113 $dbw = wfGetDB( DB_MASTER
);
115 $ok = $article->doUnwatch();
119 // Something stopped the change
120 if ( isset( $ok ) && !$ok ) {
124 return '<w#>' . wfMsgExt( 'addedwatchtext', array( 'parse' ), $title->getPrefixedText() );
126 return '<u#>' . wfMsgExt( 'removedwatchtext', array( 'parse' ), $title->getPrefixedText() );
131 * Called in some places (currently just extensions)
132 * to get the thumbnail URL for a given file at a given resolution.
134 function wfAjaxGetThumbnailUrl( $file, $width, $height ) {
135 $file = wfFindFile( $file );
137 if ( !$file ||
!$file->exists() )
140 $url = $file->getThumbnail( $width, $height )->url
;
146 * Called in some places (currently just extensions)
147 * to get the URL for a given file.
149 function wfAjaxGetFileUrl( $file ) {
150 $file = wfFindFile( $file );
152 if ( !$file ||
!$file->exists() )
155 $url = $file->getUrl();