257 lines
8.7 KiB
PHP
257 lines
8.7 KiB
PHP
<?php
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function wfSpecialUndelete( $par )
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{
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global $wgRequest;
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$form = new UndeleteForm( $wgRequest, $par );
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$form->execute();
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}
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class UndeleteForm {
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var $mAction, $mTarget, $mTimestamp, $mRestore, $mTargetObj;
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function UndeleteForm( &$request, $par = "" ) {
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$this->mAction = $request->getText( 'action' );
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$this->mTarget = $request->getText( 'target' );
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$this->mTimestamp = $request->getText( 'timestamp' );
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$this->mRestore = $request->getCheck( 'restore' );
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if( $par != "" ) {
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$this->mTarget = $par;
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}
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if ( $this->mTarget !== "" ) {
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$this->mTargetObj = Title::newFromURL( $this->mTarget );
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} else {
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$this->mTargetObj = NULL;
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}
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}
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function execute() {
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if( !is_null( $this->mTargetObj ) ) {
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$title = $this->mTargetObj->mDbkeyform;
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$namespace = $this->mTargetObj->mNamespace;
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if( $this->mTimestamp !== "" ) {
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return $this->showRevision( $namespace, $title, $this->mTimestamp );
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}
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if( $this->mRestore and $this->mAction == "submit" ) {
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return $this->undelete( $namespace, $title );
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}
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return $this->showHistory( $namespace, $title );
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} else {
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return $this->showList();
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}
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}
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/* private */ function showList() {
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global $wgLang, $wgUser, $wgOut;
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$fname = "UndeleteForm::showList";
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# List undeletable articles
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$dbr =& wfGetDB( DB_SLAVE );
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$archive = $dbr->tableName( 'archive' );
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$sql = "SELECT ar_namespace,ar_title, COUNT(*) AS count FROM $archive " .
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"GROUP BY ar_namespace,ar_title ORDER BY ar_namespace,ar_title";
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$res = $dbr->query( $sql, $fname );
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$wgOut->setPagetitle( wfMsg( "undeletepage" ) );
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$wgOut->addWikiText( wfMsg( "undeletepagetext" ) );
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$special = $wgLang->getNsText( Namespace::getSpecial() );
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$sk = $wgUser->getSkin();
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$wgOut->addHTML( "<ul>\n" );
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while ($row = $dbr->fetchObject( $res )) {
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$n = ($row->ar_namespace ?
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($wgLang->getNsText( $row->ar_namespace ) . ":") : "").
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$row->ar_title;
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$wgOut->addHTML( "<li>" .
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$sk->makeKnownLink( $wgLang->specialPage( "Undelete" ),
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$n, "target=" . urlencode($n) ) . " " .
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wfMsg( "undeleterevisions", $row->count ) );
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}
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$wgOut->addHTML( "</ul>\n" );
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return 0;
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}
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/* private */ function showRevision( $namespace, $title, $timestamp ) {
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global $wgLang, $wgUser, $wgOut;
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$fname = "UndeleteForm::showRevision";
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if(!preg_match("/[0-9]{14}/",$timestamp)) return 0;
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$dbr =& wfGetDB( DB_SLAVE );
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$archive = $dbr->tableName( 'archive' );
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$sql = "SELECT ar_text,ar_flags FROM $archive ".
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"WHERE ar_namespace={$namespace} AND ar_title='" .
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$dbr->strencode( $title ) . "' AND ar_timestamp='" . $dbr->strencode( $timestamp ) ."'";
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$ret = $dbr->query( $sql, $fname );
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$row = $dbr->fetchObject( $ret );
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$wgOut->setPagetitle( wfMsg( "undeletepage" ) );
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$wgOut->addWikiText( "(" . wfMsg( "undeleterevision", $wgLang->date($timestamp, true) )
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. ")\n<hr>\n" . Article::getRevisionText( $row, "ar_" ) );
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return 0;
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}
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/* private */ function showHistory( $namespace, $title ) {
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global $wgLang, $wgUser, $wgOut;
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$sk = $wgUser->getSkin();
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$wgOut->setPagetitle( wfMsg( "undeletepage" ) );
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$dbr =& wfGetDB( DB_SLAVE );
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$archive = $dbr->tableName( 'archive' );
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# Get text of first revision
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$sql = "SELECT ar_text FROM $archive WHERE ar_namespace={$namespace} AND ar_title='" .
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$dbr->strencode( $title ) . "' ORDER BY ar_timestamp DESC LIMIT 1";
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$ret = $dbr->query( $sql );
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if( $dbr->numRows( $ret ) == 0 ) {
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$wgOut->addWikiText( wfMsg( "nohistory" ) );
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return 0;
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}
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$row = $dbr->fetchObject( $ret );
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$wgOut->addWikiText( wfMsg( "undeletehistory" ) . "\n<hr>\n" . $row->ar_text );
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# List all stored revisions
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$sql = "SELECT ar_minor_edit,ar_timestamp,ar_user,ar_user_text,ar_comment
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FROM archive WHERE ar_namespace={$namespace} AND ar_title='" . $dbr->strencode( $title ) .
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"' ORDER BY ar_timestamp DESC";
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$ret = $dbr->query( $sql );
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$titleObj = Title::makeTitle( NS_SPECIAL, "Undelete" );
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$action = $titleObj->escapeLocalURL( "action=submit" );
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$encTarget = htmlspecialchars( $this->mTarget );
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$wgOut->addHTML("<p>
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<form id=\"undelete\" method=\"post\" action=\"{$action}\">
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<input type=hidden name=\"target\" value=\"{$encTarget}\">
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<input type=submit name=\"restore\" value=\"".wfMsg("undeletebtn")."\">
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</form>");
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$log = $dbr->selectField( "cur", "cur_text",
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array( 'cur_namespace' => NS_WIKIPEDIA, 'cur_title' => wfMsg("dellogpage") ) );
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if(preg_match("/^(.*".
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preg_quote( ($namespace ? ($wgLang->getNsText($namespace) . ":") : "")
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. str_replace("_", " ", $title), "/" ).".*)$/m", $log, $m)) {
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$wgOut->addWikiText( $m[1] );
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}
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$special = $wgLang->getNsText( Namespace::getSpecial() );
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$wgOut->addHTML("<ul>");
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while( $row = $dbr->fetchObject( $ret ) ) {
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$wgOut->addHTML( "<li>" .
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$sk->makeKnownLink( $wgLang->specialPage( "Undelete" ),
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$wgLang->timeanddate( $row->ar_timestamp, true ),
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"target=" . urlencode($this->mTarget) . "×tamp={$row->ar_timestamp}" ) . " " .
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". . " . htmlspecialchars( $row->ar_user_text ) .
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" <i>(" . htmlspecialchars($row->ar_comment) . "</i>)\n");
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}
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$wgOut->addHTML("</ul>");
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return 0;
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}
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/* private */ function undelete( $namespace, $title )
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{
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global $wgUser, $wgOut, $wgLang, $wgDeferredUpdateList;
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global $wgUseSquid, $wgInternalServer, $wgLinkCache;
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$fname = "doUndeleteArticle";
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if ( "" == $title ) {
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$wgOut->fatalError( wfMsg( "cannotundelete" ) );
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return;
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}
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$dbw =& wfGetDB( DB_MASTER );
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extract( $dbw->tableNames( 'cur', 'archive', 'old' ) );
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$t = $dbw->strencode($title);
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# Move article and history from the "archive" table
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$sql = "SELECT COUNT(*) AS count FROM $cur WHERE cur_namespace={$namespace} AND cur_title='{$t}' FOR UPDATE";
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$res = $dbw->query( $sql, $fname );
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$row = $dbw->fetchObject( $res );
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$now = wfTimestampNow();
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if( $row->count == 0) {
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# Have to create new article...
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$sql = "SELECT ar_text,ar_timestamp,ar_flags FROM $archive WHERE ar_namespace={$namespace} AND ar_title='{$t}' " .
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"ORDER BY ar_timestamp DESC LIMIT 1 FOR UPDATE";
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$res = $dbw->query( $sql, $fname );
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$s = $dbw->fetchObject( $res );
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$max = $s->ar_timestamp;
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$redirect = MagicWord::get( MAG_REDIRECT );
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$redir = $redirect->matchStart( $s->ar_text ) ? 1 : 0;
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$seqVal = $dbw->addQuotes( $dbw->nextSequenceValue( 'cur_cur_id_seq' ) );
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$sql = "INSERT INTO $cur (cur_id,cur_namespace,cur_title,cur_text," .
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"cur_comment,cur_user,cur_user_text,cur_timestamp,inverse_timestamp,cur_minor_edit,cur_is_redirect,cur_random,cur_touched)" .
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"SELECT $seqVal,ar_namespace,ar_title,ar_text,ar_comment," .
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"ar_user,ar_user_text,ar_timestamp,99999999999999-ar_timestamp,ar_minor_edit,{$redir},RAND(),'{$now}' FROM $archive " .
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"WHERE ar_namespace={$namespace} AND ar_title='{$t}' AND ar_timestamp={$max}";
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$dbw->query( $sql, $fname );
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$newid = $dbw->insertId();
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$oldones = "AND ar_timestamp<{$max}";
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} else {
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# If already exists, put history entirely into old table
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$oldones = "";
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$newid = 0;
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# But to make the history list show up right, we need to touch it.
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$sql = "UPDATE $cur SET cur_touched='{$now}' WHERE cur_namespace={$namespace} AND cur_title='{$t}'";
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$dbw->query( $sql, $fname );
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# FIXME: Sometimes restored entries will be _newer_ than the current version.
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# We should merge.
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}
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$sql = "INSERT INTO $old (old_namespace,old_title,old_text," .
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"old_comment,old_user,old_user_text,old_timestamp,inverse_timestamp,old_minor_edit," .
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"old_flags) SELECT ar_namespace,ar_title,ar_text,ar_comment," .
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"ar_user,ar_user_text,ar_timestamp,99999999999999-ar_timestamp,ar_minor_edit,ar_flags " .
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"FROM $archive WHERE ar_namespace={$namespace} AND ar_title='{$t}' {$oldones}";
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$dbw->query( $sql, $fname );
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# Finally, clean up the link tables
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if( $newid ) {
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$wgLinkCache = new LinkCache();
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# Select for update
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$wgLinkCache->forUpdate( true );
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# Create a dummy OutputPage to update the outgoing links
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$dummyOut = new OutputPage();
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# Get the text
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$text = $dbw->selectField( 'cur', 'cur_text',
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array( 'cur_id' => $newid, 'cur_namespace' => $namespace ),
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$fname, 'FOR UPDATE'
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);
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$dummyOut->addWikiText( $text );
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$u = new LinksUpdate( $newid, $this->mTargetObj->getPrefixedDBkey() );
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array_push( $wgDeferredUpdateList, $u );
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Article::onArticleCreate( $this->mTargetObj );
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#TODO: SearchUpdate, etc.
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}
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# Now that it's safely stored, take it out of the archive
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$sql = "DELETE FROM $archive WHERE ar_namespace={$namespace} AND " .
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"ar_title='{$t}'";
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$dbw->query( $sql, $fname );
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# Touch the log?
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$log = new LogPage( wfMsg( "dellogpage" ), wfMsg( "dellogpagetext" ) );
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$log->addEntry( wfMsg( "undeletedarticle", $this->mTarget ), "" );
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$wgOut->addWikiText( wfMsg( "undeletedtext", $this->mTarget ) );
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return 0;
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}
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}
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?>
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