<?php
+/**
+ * Handler functions for Ajax requests
+ *
+ * @file
+ * @ingroup Ajax
+ */
-if( !defined( 'MEDIAWIKI' ) )
- die( 1 );
-
-require_once('WebRequest.php');
+if ( !defined( 'MEDIAWIKI' ) ) {
+ die( 1 );
+}
/**
* Function converts an Javascript escaped string back into a string with
* Modified function from http://pure-essence.net/stuff/code/utf8RawUrlDecode.phps
*
* @param $source String escaped with Javascript's escape() function
- * @param $iconv_to String destination character set will be used as second paramether in the iconv function. Default is UTF-8.
+ * @param $iconv_to String destination character set will be used as second parameter
+ * in the iconv function. Default is UTF-8.
* @return string
*/
-function js_unescape($source, $iconv_to = 'UTF-8') {
- $decodedStr = '';
- $pos = 0;
- $len = strlen ($source);
- while ($pos < $len) {
- $charAt = substr ($source, $pos, 1);
- if ($charAt == '%') {
- $pos++;
- $charAt = substr ($source, $pos, 1);
- if ($charAt == 'u') {
- // we got a unicode character
- $pos++;
- $unicodeHexVal = substr ($source, $pos, 4);
- $unicode = hexdec ($unicodeHexVal);
- $decodedStr .= code2utf($unicode);
- $pos += 4;
- }
- else {
- // we have an escaped ascii character
- $hexVal = substr ($source, $pos, 2);
- $decodedStr .= chr (hexdec ($hexVal));
- $pos += 2;
- }
- }
- else {
- $decodedStr .= $charAt;
- $pos++;
- }
- }
+function js_unescape( $source, $iconv_to = 'UTF-8' ) {
+ $decodedStr = '';
+ $pos = 0;
+ $len = strlen ( $source );
+
+ while ( $pos < $len ) {
+ $charAt = substr ( $source, $pos, 1 );
+ if ( $charAt == '%' ) {
+ $pos++;
+ $charAt = substr ( $source, $pos, 1 );
+
+ if ( $charAt == 'u' ) {
+ // we got a unicode character
+ $pos++;
+ $unicodeHexVal = substr ( $source, $pos, 4 );
+ $unicode = hexdec ( $unicodeHexVal );
+ $decodedStr .= code2utf( $unicode );
+ $pos += 4;
+ } else {
+ // we have an escaped ascii character
+ $hexVal = substr ( $source, $pos, 2 );
+ $decodedStr .= chr ( hexdec ( $hexVal ) );
+ $pos += 2;
+ }
+ } else {
+ $decodedStr .= $charAt;
+ $pos++;
+ }
+ }
+
+ if ( $iconv_to != "UTF-8" ) {
+ $decodedStr = iconv( "utf-8", $iconv_to, $decodedStr );
+ }
- if ($iconv_to != "UTF-8") {
- $decodedStr = iconv("UTF-8", $iconv_to, $decodedStr);
- }
-
- return $decodedStr;
+ return $decodedStr;
}
/**
* Function coverts number of utf char into that character.
- * Function taken from: http://sk2.php.net/manual/en/function.utf8-encode.php#49336
+ * Function taken from: http://www.php.net/manual/en/function.utf8-encode.php#49336
*
* @param $num Integer
* @return utf8char
*/
-function code2utf($num){
- if ( $num<128 )
- return chr($num);
- if ( $num<2048 )
- return chr(($num>>6)+192).chr(($num&63)+128);
- if ( $num<65536 )
- return chr(($num>>12)+224).chr((($num>>6)&63)+128).chr(($num&63)+128);
- if ( $num<2097152 )
- return chr(($num>>18)+240).chr((($num>>12)&63)+128).chr((($num>>6)&63)+128) .chr(($num&63)+128);
- return '';
-}
-
-class AjaxCachePolicy {
- var $policy;
- var $vary;
-
- function AjaxCachePolicy( $policy = null, $vary = null ) {
- $this->policy = $policy;
- $this->vary = $vary;
+function code2utf( $num ) {
+ if ( $num < 128 ) {
+ return chr( $num );
}
- function setPolicy( $policy ) {
- $this->policy = $policy;
+ if ( $num < 2048 ) {
+ return chr( ( $num >> 6 ) + 192 ) . chr( ( $num&63 ) + 128 );
}
- function setVary( $vary ) {
- $this->vary = $vary;
+ if ( $num < 65536 ) {
+ return chr( ( $num >> 12 ) + 224 ) . chr( ( ( $num >> 6 )&63 ) + 128 ) . chr( ( $num&63 ) + 128 );
}
- function writeHeader() {
- global $wgUseSquid, $wgUseESI, $wgSquidMaxage;
-
- header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
-
- if ( $this->policy ) {
-
- # If squid caches are configured, tell them to cache the response,
- # and tell the client to always check with the squid. Otherwise,
- # tell the client to use a cached copy, without a way to purge it.
-
- if( $wgUseSquid ) {
-
- # Expect explicite purge of the proxy cache, but require end user agents
- # to revalidate against the proxy on each visit.
- # Surrogate-Control controls our Squid, Cache-Control downstream caches
-
- if ( $wgUseESI ) {
- header( 'Surrogate-Control: max-age='.$this->policy.', content="ESI/1.0"');
- header( 'Cache-Control: s-maxage=0, must-revalidate, max-age=0' );
- } else {
- header( 'Cache-Control: s-maxage='.$this->policy.', must-revalidate, max-age=0' );
- }
-
- } else {
-
- # Let the client do the caching. Cache is not purged.
- header ("Expires: " . gmdate( "D, d M Y H:i:s", time() + $this->policy ) . " GMT");
- header ("Cache-Control: s-max-age={$this->policy},public,max-age={$this->policy}");
- }
-
- } else {
- # always expired, always modified
- header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
- header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
- header ("Pragma: no-cache"); // HTTP/1.0
- }
-
- if ( $this->vary ) {
- header ( "Vary: " . $this->vary );
- }
+ if ( $num < 2097152 ) {
+ return chr( ( $num >> 18 ) + 240 ) . chr( ( ( $num >> 12 )&63 ) + 128 ) . chr( ( ( $num >> 6 )&63 ) + 128 ) . chr( ( $num&63 ) + 128 );
}
-}
-
-
-function wfSajaxSearch( $term ) {
- global $wgContLang, $wgAjaxCachePolicy, $wgOut;
- $limit = 16;
-
- $l = new Linker;
-
- $term = str_replace( ' ', '_', $wgContLang->ucfirst(
- $wgContLang->checkTitleEncoding( $wgContLang->recodeInput( js_unescape( $term ) ) )
- ) );
- if ( strlen( str_replace( '_', '', $term ) )<3 )
- return;
-
- $wgAjaxCachePolicy->setPolicy( 30*60 );
-
- $db =& wfGetDB( DB_SLAVE );
- $res = $db->select( 'page', 'page_title',
- array( 'page_namespace' => 0,
- "page_title LIKE '". $db->strencode( $term) ."%'" ),
- "wfSajaxSearch",
- array( 'LIMIT' => $limit+1 )
- );
+ return '';
+}
- $r = "";
+/**
+ * Called in some places (currently just extensions)
+ * to get the URL for a given file.
+ */
+function wfAjaxGetFileUrl( $file ) {
+ $file = wfFindFile( $file );
- $i=0;
- while ( ( $row = $db->fetchObject( $res ) ) && ( ++$i <= $limit ) ) {
- $nt = Title::newFromDBkey( $row->page_title );
- $r .= '<li>' . $l->makeKnownLinkObj( $nt ) . "</li>\n";
- }
- if ( $i > $limit ) {
- $more = '<i>' . $l->makeKnownLink( $wgContLang->specialPage( "Allpages" ),
- wfMsg('moredotdotdot'),
- "namespace=0&from=" . wfUrlEncode ( $term ) ) .
- '</i>';
- } else {
- $more = '';
+ if ( !$file || !$file->exists() ) {
+ return null;
}
- $subtitlemsg = ( Title::newFromText($term) ? 'searchsubtitle' : 'searchsubtitleinvalid' );
- $subtitle = $wgOut->parse( wfMsg( $subtitlemsg, wfEscapeWikiText($term) ) );
+ $url = $file->getUrl();
- $term = htmlspecialchars( $term );
- return '<div style="float:right; border:solid 1px black;background:gainsboro;padding:2px;"><a onclick="Searching_Hide_Results();">'
- . wfMsg( 'hideresults' ) . '</a></div>'
- . '<h1 class="firstHeading">'.wfMsg('search')
- . '</h1><div id="contentSub">'. $subtitle . '</div><ul><li>'
- . $l->makeKnownLink( $wgContLang->specialPage( 'Search' ),
- wfMsg( 'searchcontaining', $term ),
- "search=$term&fulltext=Search" )
- . '</li><li>' . $l->makeKnownLink( $wgContLang->specialPage( 'Search' ),
- wfMsg( 'searchnamed', $term ) ,
- "search=$term&go=Go" )
- . "</li></ul><h2>" . wfMsg( 'articletitles', $term ) . "</h2>"
- . '<ul>' .$r .'</ul>'.$more;
+ return $url;
}
-
-?>