<?php
+/**
+ * Handler functions for Ajax requests
+ *
+ * @file
+ * @ingroup Ajax
+ */
-if( !defined( 'MEDIAWIKI' ) )
- die( 1 );
+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);
- }
-
- return $decodedStr;
+ if ( $iconv_to != "UTF-8" ) {
+ $decodedStr = iconv( "utf-8", $iconv_to, $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 '';
-}
-
-function wfSajaxSearch( $term ) {
- global $wgContLang, $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;
-
- $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 )
- );
-
- $r = "";
-
- $i=0;
- while ( ( $row = $db->fetchObject( $res ) ) && ( ++$i <= $limit ) ) {
- $nt = Title::newFromDBkey( $row->page_title );
- $r .= '<li>' . $l->makeKnownLinkObj( $nt ) . "</li>\n";
+function code2utf( $num ) {
+ if ( $num < 128 ) {
+ return chr( $num );
}
- if ( $i > $limit ) {
- $more = '<i>' . $l->makeKnownLink( $wgContLang->specialPage( "Allpages" ),
- wfMsg('moredotdotdot'),
- "namespace=0&from=" . wfUrlEncode ( $term ) ) .
- '</i>';
- } else {
- $more = '';
- }
-
- $subtitlemsg = ( Title::newFromText($term) ? 'searchsubtitle' : 'searchsubtitleinvalid' );
- $subtitle = $wgOut->parse( wfMsg( $subtitlemsg, wfEscapeWikiText($term) ) ); #FIXME: parser is missing mTitle !
-
- $term = urlencode( $term );
- $html = '<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;
- $response = new AjaxResponse( $html );
-
- $response->setCacheDuration( 30*60 );
-
- return $response;
-}
-
-/**
- * Called for AJAX watch/unwatch requests.
- * @param $pageID Integer ID of the page to be watched/unwatched
- * @param $watch String 'w' to watch, 'u' to unwatch
- * @return String '<w#>' or '<u#>' on successful watch or unwatch, respectively, or '<err#>' on error (invalid XML in case we want to add HTML sometime)
- */
-function wfAjaxWatch($pageID = "", $watch = "") {
- if(wfReadOnly())
- return '<err#>'; // redirect to action=(un)watch, which will display the database lock message
-
- if(('w' !== $watch && 'u' !== $watch) || !is_numeric($pageID))
- return '<err#>';
- $watch = 'w' === $watch;
- $pageID = intval($pageID);
+ if ( $num < 2048 ) {
+ return chr( ( $num >> 6 ) + 192 ) . chr( ( $num&63 ) + 128 );
+ }
- $title = Title::newFromID($pageID);
- if(!$title)
- return '<err#>';
- $article = new Article($title);
- $watching = $title->userIsWatching();
+ if ( $num < 65536 ) {
+ return chr( ( $num >> 12 ) + 224 ) . chr( ( ( $num >> 6 )&63 ) + 128 ) . chr( ( $num&63 ) + 128 );
+ }
- if($watch) {
- if(!$watching) {
- $dbw =& wfGetDB(DB_MASTER);
- $dbw->begin();
- $article->doWatch();
- $dbw->commit();
- }
- } else {
- if($watching) {
- $dbw =& wfGetDB(DB_MASTER);
- $dbw->begin();
- $article->doUnwatch();
- $dbw->commit();
- }
+ if ( $num < 2097152 ) {
+ return chr( ( $num >> 18 ) + 240 ) . chr( ( ( $num >> 12 )&63 ) + 128 ) . chr( ( ( $num >> 6 )&63 ) + 128 ) . chr( ( $num&63 ) + 128 );
}
- return $watch ? '<w#>' : '<u#>';
+ return '';
}
/**
- * Return a list of Editors currently editing the article.
- * Based on an idea by Tim Starling.
- *
- * @author Ashar Voultoiz <hashar@altern.org>
- * @author Tim Starling
+ * Called in some places (currently just extensions)
+ * to get the URL for a given file.
*/
-function wfAjaxShowEditors( $articleId, $username ) {
- global $wgOut;
- $articleId = intval($articleId);
-
- // Validate request
- $title = Title::newFromID( $articleId );
- if( !($title) ) { return 'ERR: page id invalid'; }
-
- $user = User::newFromSession() ;
- if( !$user ) { return 'ERR: user invalid'; }
-
- $username = $user->getName();
- if( !( $user->isLoggedIn() or User::isIP( $username ) ) ) { return 'ERR: user not found'; }
-
-
- // When did the user started editing ?
- $dbr =& wfGetDB(DB_SLAVE);
- $userStarted = $dbr->selectField( 'editings',
- 'editings_started',
- array(
- 'editings_user' => $username,
- 'editings_page' => $title->getArticleID(),
- ),
- __METHOD__
- );
-
- // He just started editing, assume NOW
- if(!$userStarted) { $userStarted = $dbr->timestamp(); }
+function wfAjaxGetFileUrl( $file ) {
+ $file = wfFindFile( $file );
- # Either create a new entry or update the touched timestamp.
- # This is done using a unique index on the database :
- # `editings_page_started` (`editings_page`,`editings_user`,`editings_started`)
-
- $dbw =& wfGetDB(DB_MASTER);
- $dbw->replace( 'editings',
- array( 'editings_page', 'editings_user', 'editings_started' ),
- array(
- 'editings_page' => $title->getArticleID() ,
- 'editings_user' => $username,
- 'editings_started' => $userStarted ,
- 'editings_touched' => $dbw->timestamp(),
- ), __METHOD__
- );
-
- // Now we get the list of all watching users
- $dbr = & wfGetDB(DB_SLAVE);
- $res = $dbr->select( 'editings',
- array( 'editings_user','editings_started','editings_touched' ),
- array( 'editings_page' => $title->getArticleID() ),
- __METHOD__
- );
-
- $l = new Linker();
-
- $wikitext = '';
- $unix_now = wfTimestamp(TS_UNIX);
- $first = 1;
- while( $editor = $dbr->fetchObject( $res ) ) {
-
- // Check idling time
- $idle = $unix_now - wfTimestamp( TS_UNIX, $editor->editings_touched );
-
- global $wgAjaxShowEditorsTimeout ;
- if( $idle >= $wgAjaxShowEditorsTimeout ) {
- $dbw->delete('editings',
- array(
- 'editings_page' => $title->getArticleID(),
- 'editings_user' => $editor->editings_user,
- ),
- __METHOD__
- );
- continue; // we will not show the user
- }
-
- if( $first ) { $first = 0; }
- else { $wikitext .= ' ~ '; }
-
- $since = wfTimestamp( TS_DB, $editor->editings_started );
- $wikitext .= $since;
-
- $wikitext .= ' ' . $l->makeLinkObj(
- Title::makeTitle( NS_USER, $editor->editings_user ),
- $editor->editings_user
- );
+ if ( !$file || !$file->exists() ) {
+ return null;
+ }
+ $url = $file->getUrl();
- $wikitext .= ' ' . wfMsg( 'ajax-se-idling', '<span>'.$idle.'</span>' );
- }
- return $wikitext ;
+ return $url;
}
-?>