<?php
/**
- *
+ * @todo document
* @package MediaWiki
* @subpackage SpecialPage
*/
+/** */
+require_once( 'Revision.php' );
+
/**
*
*/
$this->title =& $title;
}
+ /**
+ * List all deleted pages recorded in the archive table. Returns result
+ * wrapper with (ar_namespace, ar_title, count) fields, ordered by page
+ * namespace/title. Can be called staticaly.
+ *
+ * @return ResultWrapper
+ */
/* static */ function &listAllPages() {
$dbr =& wfGetDB( DB_SLAVE );
$archive = $dbr->tableName( 'archive' );
return $dbr->resultObject( $dbr->query( $sql, 'PageArchive::listAllPages' ) );
}
+ /**
+ * List the revisions of the given page. Returns result wrapper with
+ * (ar_minor_edit, ar_timestamp, ar_user, ar_user_text, ar_comment) fields.
+ *
+ * @return ResultWrapper
+ */
function &listRevisions() {
$dbr =& wfGetDB( DB_SLAVE );
- $sql = "SELECT ar_minor_edit,ar_timestamp,ar_user,ar_user_text,ar_comment
- FROM archive WHERE ar_namespace=" . $this->title->getNamespace() .
- " AND ar_title='" . $dbr->strencode( $this->title->getDBkey() ) .
- "' ORDER BY ar_timestamp DESC";
- return $dbr->resultObject( $dbr->query( $sql ) );
+ return $dbr->resultObject( $dbr->select( 'archive',
+ array( 'ar_minor_edit', 'ar_timestamp', 'ar_user', 'ar_user_text', 'ar_comment' ),
+ array( 'ar_namespace' => $this->title->getNamespace(),
+ 'ar_title' => $this->title->getDBkey() ),
+ 'PageArchive::listRevisions',
+ array( 'ORDER BY' => 'ar_timestamp DESC' ) ) );
}
+ /**
+ * Fetch (and decompress if necessary) the stored text for the deleted
+ * revision of the page with the given timestamp.
+ *
+ * @return string
+ */
function getRevisionText( $timestamp ) {
+ $fname = 'PageArchive::getRevisionText';
$dbr =& wfGetDB( DB_SLAVE );
$row = $dbr->selectRow( 'archive',
- array( 'ar_text', 'ar_flags' ),
+ array( 'ar_text', 'ar_flags', 'ar_text_id' ),
array( 'ar_namespace' => $this->title->getNamespace(),
'ar_title' => $this->title->getDbkey(),
- 'ar_timestamp' => $timestamp ) );
- return Article::getRevisionText( $row, "ar_" );
+ 'ar_timestamp' => $dbr->timestamp( $timestamp ) ),
+ $fname );
+ if( is_null( $row->ar_text_id ) ) {
+ // An old row from MediaWiki 1.4 or previous.
+ // Text is embedded in this row in classic compression format.
+ return Revision::getRevisionText( $row, "ar_" );
+ } else {
+ // New-style: keyed to the text storage backend.
+ $text = $dbr->selectRow( 'text',
+ array( 'old_text', 'old_flags' ),
+ array( 'old_id' => $row->ar_text_id ),
+ $fname );
+ return Revision::getRevisionText( $text );
+ }
}
+ /**
+ * Fetch (and decompress if necessary) the stored text of the most
+ * recently edited deleted revision of the page.
+ *
+ * If there are no archived revisions for the page, returns NULL.
+ *
+ * @return string
+ */
function getLastRevisionText() {
$dbr =& wfGetDB( DB_SLAVE );
- $archive = $dbr->tableName( 'archive' );
-
- # Get text of first revision
- $sql = "SELECT ar_text,ar_flags FROM $archive WHERE ar_namespace=" . $this->title->getNamespace() . " AND ar_title='" .
- $dbr->strencode( $this->title->getDBkey() ) . "' ORDER BY ar_timestamp DESC LIMIT 1";
- $ret = $dbr->query( $sql );
- $row = $dbr->fetchObject( $ret );
- $dbr->freeResult( $ret );
+ $row = $dbr->selectRow( 'archive',
+ array( 'ar_text', 'ar_flags' ),
+ array( 'ar_namespace' => $this->title->getNamespace(),
+ 'ar_title' => $this->title->getDBkey() ),
+ 'PageArchive::getLastRevisionText',
+ array( 'ORDER BY' => 'ar_timestamp DESC' ) );
if( $row ) {
- return Article::getRevisionText( $row, "ar_" );
+ return Revision::getRevisionText( $row, "ar_" );
} else {
return NULL;
}
}
+ /**
+ * Quick check if any archived revisions are present for the page.
+ * @return bool
+ */
function isDeleted() {
$dbr =& wfGetDB( DB_SLAVE );
$n = $dbr->selectField( 'archive', 'COUNT(ar_title)',
return ($n > 0);
}
- function undelete() {
+ /**
+ * This is the meaty bit -- restores archived revisions of the given page
+ * to the cur/old tables. If the page currently exists, all revisions will
+ * be stuffed into old, otherwise the most recent will go into cur.
+ * The deletion log will be updated with an undeletion notice.
+ *
+ * Returns true on success.
+ *
+ * @param array $timestamps Pass an empty array to restore all revisions, otherwise list the ones to undelete.
+ * @return bool
+ */
+ function undelete( $timestamps ) {
global $wgUser, $wgOut, $wgLang, $wgDeferredUpdateList;
- global $wgUseSquid, $wgInternalServer, $wgLinkCache;
+ global $wgUseSquid, $wgInternalServer, $wgLinkCache;
+ global $wgDBtype;
$fname = "doUndeleteArticle";
+ $restoreAll = empty( $timestamps );
+ $restoreRevisions = count( $timestamps );
$dbw =& wfGetDB( DB_MASTER );
- extract( $dbw->tableNames( 'cur', 'archive', 'old' ) );
- $namespace = $this->title->getNamespace();
- $t = $dbw->strencode( $this->title->getDBkey() );
-
- # Move article and history from the "archive" table
- $sql = "SELECT COUNT(*) AS count FROM $cur WHERE cur_namespace={$namespace} AND cur_title='{$t}' FOR UPDATE";
- $res = $dbw->query( $sql, $fname );
- $row = $dbw->fetchObject( $res );
- $now = wfTimestampNow();
-
- if( $row->count == 0) {
- # Have to create new article...
- $sql = "SELECT ar_text,ar_timestamp,ar_flags FROM $archive WHERE ar_namespace={$namespace} AND ar_title='{$t}' " .
- "ORDER BY ar_timestamp DESC LIMIT 1 FOR UPDATE";
- $res = $dbw->query( $sql, $fname );
- $s = $dbw->fetchObject( $res );
- $max = $s->ar_timestamp;
- $redirect = MagicWord::get( MAG_REDIRECT );
- $redir = $redirect->matchStart( $s->ar_text ) ? 1 : 0;
-
- $seqVal = $dbw->addQuotes( $dbw->nextSequenceValue( 'cur_cur_id_seq' ) );
+ extract( $dbw->tableNames( 'page', 'archive' ) );
- $sql = "INSERT INTO $cur (cur_id,cur_namespace,cur_title,cur_text," .
- "cur_comment,cur_user,cur_user_text,cur_timestamp,inverse_timestamp,cur_minor_edit,cur_is_redirect,cur_random,cur_touched)" .
- "SELECT $seqVal,ar_namespace,ar_title,ar_text,ar_comment," .
- "ar_user,ar_user_text,ar_timestamp,99999999999999-ar_timestamp,ar_minor_edit,{$redir},RAND(),'{$now}' FROM $archive " .
- "WHERE ar_namespace={$namespace} AND ar_title='{$t}' AND ar_timestamp={$max}";
- $dbw->query( $sql, $fname );
- $newid = $dbw->insertId();
- $oldones = "AND ar_timestamp<{$max}";
+ # Does this page already exist? We'll have to update it...
+ $article = new Article( $this->title );
+ $options = ( $wgDBtype == 'PostgreSQL' )
+ ? '' // pg doesn't support this?
+ : 'FOR UPDATE';
+ $page = $dbw->selectRow( 'page',
+ array( 'page_id', 'page_latest' ),
+ array( 'page_namespace' => $this->title->getNamespace(),
+ 'page_title' => $this->title->getDBkey() ),
+ $fname,
+ $options );
+ if( $page ) {
+ # Page already exists. Import the history, and if necessary
+ # we'll update the latest revision field in the record.
+ $newid = 0;
+ $pageId = $page->page_id;
+ $previousRevId = $page->page_latest;
+ $previousTimestamp = $page->rev_timestamp;
} else {
- # If already exists, put history entirely into old table
- $oldones = "";
- $newid = 0;
-
- # But to make the history list show up right, we need to touch it.
- $sql = "UPDATE $cur SET cur_touched='{$now}' WHERE cur_namespace={$namespace} AND cur_title='{$t}'";
- $dbw->query( $sql, $fname );
+ # Have to create a new article...
+ $newid = $article->insertOn( $dbw );
+ $pageId = $newid;
+ $previousRevId = 0;
+ $previousTimestamp = 0;
+ }
+
+ if( $restoreAll ) {
+ $oldones = '1'; # All revisions...
+ } else {
+ $oldts = implode( ',',
+ array_map( array( &$dbw, 'addQuotes' ),
+ array_map( array( &$dbw, 'timestamp' ),
+ $timestamps ) ) );
- # FIXME: Sometimes restored entries will be _newer_ than the current version.
- # We should merge.
+ $oldones = "ar_timestamp IN ( {$oldts} )";
}
- $sql = "INSERT INTO $old (old_namespace,old_title,old_text," .
- "old_comment,old_user,old_user_text,old_timestamp,inverse_timestamp,old_minor_edit," .
- "old_flags) SELECT ar_namespace,ar_title,ar_text,ar_comment," .
- "ar_user,ar_user_text,ar_timestamp,99999999999999-ar_timestamp,ar_minor_edit,ar_flags " .
- "FROM $archive WHERE ar_namespace={$namespace} AND ar_title='{$t}' {$oldones}";
- $dbw->query( $sql, $fname );
-
- # Finally, clean up the link tables
- if( $newid ) {
- $wgLinkCache = new LinkCache();
- # Select for update
- $wgLinkCache->forUpdate( true );
- # Create a dummy OutputPage to update the outgoing links
- $dummyOut = new OutputPage();
- # Get the text
- $text = $dbw->selectField( 'cur', 'cur_text',
- array( 'cur_id' => $newid, 'cur_namespace' => $namespace ),
- $fname, 'FOR UPDATE'
+ /**
+ * Restore each revision...
+ */
+ $result = $dbw->select( 'archive',
+ /* fields */ array(
+ 'ar_rev_id',
+ 'ar_text',
+ 'ar_comment',
+ 'ar_user',
+ 'ar_user_text',
+ 'ar_timestamp',
+ 'ar_minor_edit',
+ 'ar_flags',
+ 'ar_text_id' ),
+ /* WHERE */ array(
+ 'ar_namespace' => $this->title->getNamespace(),
+ 'ar_title' => $this->title->getDBkey(),
+ $oldones ),
+ $fname,
+ /* options */ array(
+ 'ORDER BY' => 'ar_timestamp' )
);
- $dummyOut->addWikiText( $text );
-
- $u = new LinksUpdate( $newid, $this->title->getPrefixedDBkey() );
- array_push( $wgDeferredUpdateList, $u );
-
- Article::onArticleCreate( $this->title );
+ $revision = null;
+ while( $row = $dbw->fetchObject( $result ) ) {
+ $revision = new Revision( array(
+ 'page' => $pageId,
+ 'id' => $row->ar_rev_id,
+ 'text' => Revision::getRevisionText( $row, 'ar_' ),
+ 'comment' => $row->ar_comment,
+ 'user' => $row->ar_user,
+ 'user_text' => $row->ar_user_text,
+ 'timestamp' => $row->ar_timestamp,
+ 'minor_edit' => $row->ar_minor_edit,
+ 'text_id' => $row->ar_text_id,
+ ) );
+ $revision->insertOn( $dbw );
+ }
+
+ if( $revision ) {
+ # FIXME: Update latest if newer as well...
+ if( $newid ) {
+ # FIXME: update article count if changed...
+ $article->updateRevisionOn( $dbw, $revision, $previousRevId );
+
+ # Finally, clean up the link tables
+ $wgLinkCache = new LinkCache();
+ # Select for update
+ $wgLinkCache->forUpdate( true );
+
+ # Create a dummy OutputPage to update the outgoing links
+ $dummyOut = new OutputPage();
+ $dummyOut->addWikiText( $revision->getText() );
- #TODO: SearchUpdate, etc.
+ $u = new LinksUpdate( $newid, $this->title->getPrefixedDBkey() );
+ array_push( $wgDeferredUpdateList, $u );
+
+ #TODO: SearchUpdate, etc.
+ }
+
+ if( $newid ) {
+ Article::onArticleCreate( $this->title );
+ } else {
+ Article::onArticleEdit( $this->title );
+ }
+ } else {
+ # Something went terribly worong!
}
# Now that it's safely stored, take it out of the archive
- $sql = "DELETE FROM $archive WHERE ar_namespace={$namespace} AND " .
- "ar_title='{$t}'";
- $dbw->query( $sql, $fname );
-
+ $dbw->delete( 'archive',
+ /* WHERE */ array(
+ 'ar_namespace' => $this->title->getNamespace(),
+ 'ar_title' => $this->title->getDBkey(),
+ $oldones ),
+ $fname );
- # Touch the log?
+ # Touch the log!
$log = new LogPage( 'delete' );
- $log->addEntry( 'restore', $this->title, "" );
-
+ if( $restoreAll ) {
+ $reason = '';
+ } else {
+ $reason = wfMsgForContent( 'undeletedrevisions', $restoreRevisions );
+ }
+ $log->addEntry( 'restore', $this->title, $reason );
+
return true;
}
}
*/
class UndeleteForm {
var $mAction, $mTarget, $mTimestamp, $mRestore, $mTargetObj;
+ var $mTargetTimestamp;
function UndeleteForm( &$request, $par = "" ) {
+ global $wgUser;
$this->mAction = $request->getText( 'action' );
$this->mTarget = $request->getText( 'target' );
$this->mTimestamp = $request->getText( 'timestamp' );
- $this->mRestore = $request->getCheck( 'restore' ) && $request->wasPosted();
+ $this->mRestore = $request->getCheck( 'restore' ) &&
+ $request->wasPosted() &&
+ $wgUser->matchEditToken( $request->getVal( 'wpEditToken' ) );
if( $par != "" ) {
$this->mTarget = $par;
}
} else {
$this->mTargetObj = NULL;
}
+ if( $this->mRestore ) {
+ $timestamps = array();
+ foreach( $_REQUEST as $key => $val ) {
+ if( preg_match( '/^ts(\d{14})$/', $key, $matches ) ) {
+ array_push( $timestamps, $matches[1] );
+ }
+ }
+ rsort( $timestamps );
+ $this->mTargetTimestamp = $timestamps;
+ }
}
function execute() {
$action = $titleObj->escapeLocalURL( "action=submit" );
$encTarget = htmlspecialchars( $this->mTarget );
$button = htmlspecialchars( wfMsg("undeletebtn") );
+ $token = htmlspecialchars( $wgUser->editToken() );
$wgOut->addHTML("
<form id=\"undelete\" method=\"post\" action=\"{$action}\">
<input type=\"hidden\" name=\"target\" value=\"{$encTarget}\" />
<input type=\"submit\" name=\"restore\" value=\"{$button}\" />
- </form>");
+ <input type='hidden' name='wpEditToken' value=\"{$token}\" />
+ ");
# Show relevant lines from the deletion log:
$wgOut->addHTML( "<h2>" . htmlspecialchars( LogPage::logName( 'delete' ) ) . "</h2>\n" );
$wgOut->addHTML("<ul>");
$target = urlencode( $this->mTarget );
while( $row = $revisions->fetchObject() ) {
+ $ts = wfTimestamp( TS_MW, $row->ar_timestamp );
+ $checkBox = "<input type=\"checkbox\" name=\"ts$ts\" value=\"1\" />";
$pageLink = $sk->makeKnownLinkObj( $titleObj,
$wgLang->timeanddate( $row->ar_timestamp, true ),
- "target=$target×tamp={$row->ar_timestamp}" );
+ "target=$target×tamp=$ts" );
$userLink = htmlspecialchars( $row->ar_user_text );
if( $row->ar_user ) {
$userLink = $sk->makeKnownLinkObj(
Title::makeTitle( NS_USER, $row->ar_user_text ),
$userLink );
+ } else {
+ $userLink = $sk->makeKnownLinkObj(
+ Title::makeTitle( NS_SPECIAL, 'Contributions' ),
+ $userLink, 'target=' . $row->ar_user_text );
}
- $comment = $sk->formatComment( $row->ar_comment );
- $wgOut->addHTML( "<li>$pageLink . . $userLink (<i>$comment</i>)</li>\n" );
+ $comment = $sk->commentBlock( $row->ar_comment );
+ $wgOut->addHTML( "<li>$checkBox $pageLink . . $userLink $comment</li>\n" );
}
$revisions->free();
- $wgOut->addHTML("</ul>");
+ $wgOut->addHTML("</ul>\n</form>");
return true;
}
global $wgOut;
if( !is_null( $this->mTargetObj ) ) {
$archive = new PageArchive( $this->mTargetObj );
- if( $archive->undelete() ) {
+ if( $archive->undelete( $this->mTargetTimestamp ) ) {
$wgOut->addWikiText( wfMsg( "undeletedtext", $this->mTarget ) );
+
+ if (NS_IMAGE == $this->mTargetObj->getNamespace()) {
+ /* refresh image metadata cache */
+ new Image( $this->mTargetObj );
+ }
+
return true;
}
}