<?php
/**
* Special page allowing users with the appropriate permissions to view
* and restore deleted content
*
* @addtogroup SpecialPage
*/
/**
* Constructor
*/
function wfSpecialUndelete( $par ) {
global $wgRequest;
$form = new UndeleteForm( $wgRequest, $par );
$form->execute();
}
/**
* Used to show archived pages and eventually restore them.
* @addtogroup SpecialPage
*/
class PageArchive {
protected $title;
var $fileStatus;
function __construct( $title ) {
if( is_null( $title ) ) {
throw new MWException( 'Archiver() given a null title.');
}
$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.
*
* @return ResultWrapper
*/
public static function listAllPages() {
$dbr = wfGetDB( DB_SLAVE );
return self::listPages( $dbr, '' );
}
/**
* List deleted pages recorded in the archive table matching the
* given title prefix.
* Returns result wrapper with (ar_namespace, ar_title, count) fields.
*
* @return ResultWrapper
*/
public static function listPagesByPrefix( $prefix ) {
$dbr = wfGetDB( DB_SLAVE );
$title = Title::newFromText( $prefix );
if( $title ) {
$ns = $title->getNamespace();
$encPrefix = $dbr->escapeLike( $title->getDbKey() );
} else {
// Prolly won't work too good
// @todo handle bare namespace names cleanly?
$ns = 0;
$encPrefix = $dbr->escapeLike( $prefix );
}
$conds = array(
'ar_namespace' => $ns,
"ar_title LIKE '$encPrefix%'",
);
return self::listPages( $dbr, $conds );
}
protected static function listPages( $dbr, $condition ) {
return $dbr->resultObject(
$dbr->select(
array( 'archive' ),
array(
'ar_namespace',
'ar_title',
'COUNT(*) AS count',
),
$condition,
__METHOD__,
array(
'GROUP BY' => 'ar_namespace,ar_title',
'ORDER BY' => 'ar_namespace,ar_title',
'LIMIT' => 100,
)
)
);
}
/**
* 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 );
$res = $dbr->select( 'archive',
array( 'ar_minor_edit', 'ar_timestamp', 'ar_user', 'ar_user_text', 'ar_comment', 'ar_len' ),
array( 'ar_namespace' => $this->title->getNamespace(),
'ar_title' => $this->title->getDBkey() ),
'PageArchive::listRevisions',
array( 'ORDER BY' => 'ar_timestamp DESC' ) );
$ret = $dbr->resultObject( $res );
return $ret;
}
/**
* List the deleted file revisions for this page, if it's a file page.
* Returns a result wrapper with various filearchive fields, or null
* if not a file page.
*
* @return ResultWrapper
* @todo Does this belong in Image for fuller encapsulation?
*/
function listFiles() {
if( $this->title->getNamespace() == NS_IMAGE ) {
$dbr = wfGetDB( DB_SLAVE );
$res = $dbr->select( 'filearchive',
array(
'fa_id',
'fa_name',
'fa_storage_key',
'fa_size',
'fa_width',
'fa_height',
'fa_description',
'fa_user',
'fa_user_text',
'fa_timestamp' ),
array( 'fa_name' => $this->title->getDbKey() ),
__METHOD__,
array( 'ORDER BY' => 'fa_timestamp DESC' ) );
$ret = $dbr->resultObject( $res );
return $ret;
}
return null;
}
/**
* Fetch (and decompress if necessary) the stored text for the deleted
* revision of the page with the given timestamp.
*
* @return string
* @deprecated Use getRevision() for more flexible information
*/
function getRevisionText( $timestamp ) {
$rev = $this->getRevision( $timestamp );
return $rev ? $rev->getText() : null;
}
/**
* Return a Revision object containing data for the deleted revision.
* Note that the result *may* or *may not* have a null page ID.
* @param string $timestamp
* @return Revision
*/
function getRevision( $timestamp ) {
$dbr = wfGetDB( DB_SLAVE );
$row = $dbr->selectRow( 'archive',
array(
'ar_rev_id',
'ar_text',
'ar_comment',
'ar_user',
'ar_user_text',
'ar_timestamp',
'ar_minor_edit',
'ar_flags',
'ar_text_id',
'ar_len' ),
array( 'ar_namespace' => $this->title->getNamespace(),
'ar_title' => $this->title->getDbkey(),
'ar_timestamp' => $dbr->timestamp( $timestamp ) ),
__METHOD__ );
if( $row ) {
return new Revision( array(
'page' => $this->title->getArticleId(),
'id' => $row->ar_rev_id,
'text' => ($row->ar_text_id
? null
: 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 ) );
} else {
return null;
}
}
/**
* Get the text from an archive row containing ar_text, ar_flags and ar_text_id
*/
function getTextFromRow( $row ) {
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.
$dbr = wfGetDB( DB_SLAVE );
$text = $dbr->selectRow( 'text',
array( 'old_text', 'old_flags' ),
array( 'old_id' => $row->ar_text_id ),
__METHOD__ );
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 );
$row = $dbr->selectRow( 'archive',
array( 'ar_text', 'ar_flags', 'ar_text_id' ),
array( 'ar_namespace' => $this->title->getNamespace(),
'ar_title' => $this->title->getDBkey() ),
'PageArchive::getLastRevisionText',
array( 'ORDER BY' => 'ar_timestamp DESC' ) );
if( $row ) {
return $this->getTextFromRow( $row );
} 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)',
array( 'ar_namespace' => $this->title->getNamespace(),
'ar_title' => $this->title->getDBkey() ) );
return ($n > 0);
}
/**
* Restore the given (or all) text and file revisions for the page.
* Once restored, the items will be removed from the archive tables.
* The deletion log will be updated with an undeletion notice.
*
* @param array $timestamps Pass an empty array to restore all revisions, otherwise list the ones to undelete.
* @param string $comment
* @param array $fileVersions
*
* @return true on success.
*/
function undelete( $timestamps, $comment = '', $fileVersions = array() ) {
// If both the set of text revisions and file revisions are empty,
// restore everything. Otherwise, just restore the requested items.
$restoreAll = empty( $timestamps ) && empty( $fileVersions );
$restoreText = $restoreAll || !empty( $timestamps );
$restoreFiles = $restoreAll || !empty( $fileVersions );
if( $restoreFiles && $this->title->getNamespace() == NS_IMAGE ) {
$img = wfLocalFile( $this->title );
$this->fileStatus = $img->restore( $fileVersions );
$filesRestored = $this->fileStatus->successCount;
} else {
$filesRestored = 0;
}
if( $restoreText ) {
$textRestored = $this->undeleteRevisions( $timestamps );
} else {
$textRestored = 0;
}
// Touch the log!
global $wgContLang;
$log = new LogPage( 'delete' );
if( $textRestored && $filesRestored ) {
$reason = wfMsgForContent( 'undeletedrevisions-files',
$wgContLang->formatNum( $textRestored ),
$wgContLang->formatNum( $filesRestored ) );
} elseif( $textRestored ) {
$reason = wfMsgForContent( 'undeletedrevisions',
$wgContLang->formatNum( $textRestored ) );
} elseif( $filesRestored ) {
$reason = wfMsgForContent( 'undeletedfiles',
$wgContLang->formatNum( $filesRestored ) );
} else {
wfDebug( "Undelete: nothing undeleted...\n" );
return false;
}
if( trim( $comment ) != '' )
$reason .= ": {$comment}";
$log->addEntry( 'restore', $this->title, $reason );
if ( $this->fileStatus && !$this->fileStatus->ok ) {
return false;
} else {
return true;
}
}
/**
* 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.
*
* @param array $timestamps Pass an empty array to restore all revisions, otherwise list the ones to undelete.
* @param string $comment
* @param array $fileVersions
*
* @return int number of revisions restored
*/
private function undeleteRevisions( $timestamps ) {
$restoreAll = empty( $timestamps );
$dbw = wfGetDB( DB_MASTER );
# Does this page already exist? We'll have to update it...
$article = new Article( $this->title );
$options = 'FOR UPDATE';
$page = $dbw->selectRow( 'page',
array( 'page_id', 'page_latest' ),
array( 'page_namespace' => $this->title->getNamespace(),
'page_title' => $this->title->getDBkey() ),
__METHOD__,
$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;
} else {
# Have to create a new article...
$newid = $article->insertOn( $dbw );
$pageId = $newid;
$previousRevId = 0;
}
if( $restoreAll ) {
$oldones = '1 = 1'; # All revisions...
} else {
$oldts = implode( ',',
array_map( array( &$dbw, 'addQuotes' ),
array_map( array( &$dbw, 'timestamp' ),
$timestamps ) ) );
$oldones = "ar_timestamp IN ( {$oldts} )";
}
/**
* 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',
'ar_len' ),
/* WHERE */ array(
'ar_namespace' => $this->title->getNamespace(),
'ar_title' => $this->title->getDBkey(),
$oldones ),
__METHOD__,
/* options */ array(
'ORDER BY' => 'ar_timestamp' )
);
if( $dbw->numRows( $result ) < count( $timestamps ) ) {
wfDebug( __METHOD__.": couldn't find all requested rows\n" );
return false;
}
$revision = null;
$restored = 0;
while( $row = $dbw->fetchObject( $result ) ) {
if( $row->ar_text_id ) {
// Revision was deleted in 1.5+; text is in
// the regular text table, use the reference.
// Specify null here so the so the text is
// dereferenced for page length info if needed.
$revText = null;
} else {
// Revision was deleted in 1.4 or earlier.
// Text is squashed into the archive row, and
// a new text table entry will be created for it.
$revText = Revision::getRevisionText( $row, 'ar_' );
}
$revision = new Revision( array(
'page' => $pageId,
'id' => $row->ar_rev_id,
'text' => $revText,
'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,
'len' => $row->ar_len
) );
$revision->insertOn( $dbw );
$restored++;
}
if( $revision ) {
// Attach the latest revision to the page...
$wasnew = $article->updateIfNewerOn( $dbw, $revision, $previousRevId );
if( $newid || $wasnew ) {
// Update site stats, link tables, etc
$article->createUpdates( $revision );
}
if( $newid ) {
wfRunHooks( 'ArticleUndelete', array( &$this->title, true ) );
Article::onArticleCreate( $this->title );
} else {
wfRunHooks( 'ArticleUndelete', array( &$this->title, false ) );
Article::onArticleEdit( $this->title );
}
} else {
# Something went terribly wrong!
}
# Now that it's safely stored, take it out of the archive
$dbw->delete( 'archive',
/* WHERE */ array(
'ar_namespace' => $this->title->getNamespace(),
'ar_title' => $this->title->getDBkey(),
$oldones ),
__METHOD__ );
return $restored;
}
function getFileStatus() { return $this->fileStatus; }
}
/**
* The HTML form for Special:Undelete, which allows users with the appropriate
* permissions to view and restore deleted content.
* @addtogroup SpecialPage
*/
class UndeleteForm {
var $mAction, $mTarget, $mTimestamp, $mRestore, $mTargetObj;
var $mTargetTimestamp, $mAllowed, $mComment;
function UndeleteForm( $request, $par = "" ) {
global $wgUser;
$this->mAction = $request->getVal( 'action' );
$this->mTarget = $request->getVal( 'target' );
$this->mSearchPrefix = $request->getText( 'prefix' );
$time = $request->getVal( 'timestamp' );
$this->mTimestamp = $time ? wfTimestamp( TS_MW, $time ) : '';
$this->mFile = $request->getVal( 'file' );
$posted = $request->wasPosted() &&
$wgUser->matchEditToken( $request->getVal( 'wpEditToken' ) );
$this->mRestore = $request->getCheck( 'restore' ) && $posted;
$this->mPreview = $request->getCheck( 'preview' ) && $posted;
$this->mComment = $request->getText( 'wpComment' );
if( $par != "" ) {
$this->mTarget = $par;
}
if ( $wgUser->isAllowed( 'delete' ) && !$wgUser->isBlocked() ) {
$this->mAllowed = true;
} else {
$this->mAllowed = false;
$this->mTimestamp = '';
$this->mRestore = false;
}
if ( $this->mTarget !== "" ) {
$this->mTargetObj = Title::newFromURL( $this->mTarget );
} else {
$this->mTargetObj = NULL;
}
if( $this->mRestore ) {
$timestamps = array();
$this->mFileVersions = array();
foreach( $_REQUEST as $key => $val ) {
$matches = array();
if( preg_match( '/^ts(\d{14})$/', $key, $matches ) ) {
array_push( $timestamps, $matches[1] );
}
if( preg_match( '/^fileid(\d+)$/', $key, $matches ) ) {
$this->mFileVersions[] = intval( $matches[1] );
}
}
rsort( $timestamps );
$this->mTargetTimestamp = $timestamps;
}
}
function execute() {
global $wgOut;
if ( $this->mAllowed ) {
$wgOut->setPagetitle( wfMsg( "undeletepage" ) );
} else {
$wgOut->setPagetitle( wfMsg( "viewdeletedpage" ) );
}
if( is_null( $this->mTargetObj ) ) {
$this->showSearchForm();
# List undeletable articles
if( $this->mSearchPrefix ) {
$result = PageArchive::listPagesByPrefix(
$this->mSearchPrefix );
$this->showList( $result );
}
return;
}
if( $this->mTimestamp !== '' ) {
return $this->showRevision( $this->mTimestamp );
}
if( $this->mFile !== null ) {
return $this->showFile( $this->mFile );
}
if( $this->mRestore && $this->mAction == "submit" ) {
return $this->undelete();
}
return $this->showHistory();
}
function showSearchForm() {
global $wgOut, $wgScript;
$wgOut->addWikiText( wfMsg( 'undelete-header' ) );
$wgOut->addHtml(
Xml::openElement( 'form', array(
'method' => 'get',
'action' => $wgScript ) ) .
'<fieldset>' .
Xml::element( 'legend', array(),
wfMsg( 'undelete-search-box' ) ) .
Xml::hidden( 'title',
SpecialPage::getTitleFor( 'Undelete' )->getPrefixedDbKey() ) .
Xml::inputLabel( wfMsg( 'undelete-search-prefix' ),
'prefix', 'prefix', 20,
$this->mSearchPrefix ) .
Xml::submitButton( wfMsg( 'undelete-search-submit' ) ) .
'</fieldset>' .
'</form>' );
}
/* private */ function showList( $result ) {
global $wgLang, $wgContLang, $wgUser, $wgOut;
if( $result->numRows() == 0 ) {
$wgOut->addWikiText( wfMsg( 'undelete-no-results' ) );
return;
}
$wgOut->addWikiText( wfMsg( "undeletepagetext" ) );
$sk = $wgUser->getSkin();
$undelete = SpecialPage::getTitleFor( 'Undelete' );
$wgOut->addHTML( "<ul>\n" );
while( $row = $result->fetchObject() ) {
$title = Title::makeTitleSafe( $row->ar_namespace, $row->ar_title );
$link = $sk->makeKnownLinkObj( $undelete, htmlspecialchars( $title->getPrefixedText() ), 'target=' . $title->getPrefixedUrl() );
#$revs = wfMsgHtml( 'undeleterevisions', $wgLang->formatNum( $row->count ) );
$revs = wfMsgExt( 'undeleterevisions',
array( 'parseinline' ),
$wgLang->formatNum( $row->count ) );
$wgOut->addHtml( "<li>{$link} ({$revs})</li>\n" );
}
$result->free();
$wgOut->addHTML( "</ul>\n" );
return true;
}
/* private */ function showRevision( $timestamp ) {
global $wgLang, $wgUser, $wgOut;
$self = SpecialPage::getTitleFor( 'Undelete' );
$skin = $wgUser->getSkin();
if(!preg_match("/[0-9]{14}/",$timestamp)) return 0;
$archive = new PageArchive( $this->mTargetObj );
$rev = $archive->getRevision( $timestamp );
if( !$rev ) {
$wgOut->addWikiTexT( wfMsg( 'undeleterevision-missing' ) );
return;
}
$wgOut->setPageTitle( wfMsg( 'undeletepage' ) );
$link = $skin->makeKnownLinkObj(
$self,
htmlspecialchars( $this->mTargetObj->getPrefixedText() ),
'target=' . $this->mTargetObj->getPrefixedUrl()
);
$time = htmlspecialchars( $wgLang->timeAndDate( $timestamp ) );
$user = $skin->userLink( $rev->getUser(), $rev->getUserText() )
. $skin->userToolLinks( $rev->getUser(), $rev->getUserText() );
$wgOut->addHtml( '<p>' . wfMsgHtml( 'undelete-revision', $link, $time, $user ) . '</p>' );
wfRunHooks( 'UndeleteShowRevision', array( $this->mTargetObj, $rev ) );
if( $this->mPreview ) {
$wgOut->addHtml( "<hr />\n" );
$wgOut->addWikiTextTitleTidy( $rev->getText(), $this->mTargetObj, false );
}
$wgOut->addHtml(
wfElement( 'textarea', array(
'readonly' => 'readonly',
'cols' => intval( $wgUser->getOption( 'cols' ) ),
'rows' => intval( $wgUser->getOption( 'rows' ) ) ),
$rev->getText() . "\n" ) .
wfOpenElement( 'div' ) .
wfOpenElement( 'form', array(
'method' => 'post',
'action' => $self->getLocalURL( "action=submit" ) ) ) .
wfElement( 'input', array(
'type' => 'hidden',
'name' => 'target',
'value' => $this->mTargetObj->getPrefixedDbKey() ) ) .
wfElement( 'input', array(
'type' => 'hidden',
'name' => 'timestamp',
'value' => $timestamp ) ) .
wfElement( 'input', array(
'type' => 'hidden',
'name' => 'wpEditToken',
'value' => $wgUser->editToken() ) ) .
wfElement( 'input', array(
'type' => 'hidden',
'name' => 'preview',
'value' => '1' ) ) .
wfElement( 'input', array(
'type' => 'submit',
'value' => wfMsg( 'showpreview' ) ) ) .
wfCloseElement( 'form' ) .
wfCloseElement( 'div' ) );
}
/**
* Show a deleted file version requested by the visitor.
*/
function showFile( $key ) {
global $wgOut, $wgRequest;
$wgOut->disable();
# We mustn't allow the output to be Squid cached, otherwise
# if an admin previews a deleted image, and it's cached, then
# a user without appropriate permissions can toddle off and
# nab the image, and Squid will serve it
$wgRequest->response()->header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
$wgRequest->response()->header( 'Cache-Control: no-cache, no-store, max-age=0, must-revalidate' );
$wgRequest->response()->header( 'Pragma: no-cache' );
$store = FileStore::get( 'deleted' );
$store->stream( $key );
}
/* private */ function showHistory() {
global $wgLang, $wgContLang, $wgUser, $wgOut;
$sk = $wgUser->getSkin();
if ( $this->mAllowed ) {
$wgOut->setPagetitle( wfMsg( "undeletepage" ) );
} else {
$wgOut->setPagetitle( wfMsg( 'viewdeletedpage' ) );
}
$archive = new PageArchive( $this->mTargetObj );
/*
$text = $archive->getLastRevisionText();
if( is_null( $text ) ) {
$wgOut->addWikiText( wfMsg( "nohistory" ) );
return;
}
*/
if ( $this->mAllowed ) {
$wgOut->addWikiText( wfMsg( "undeletehistory" ) );
} else {
$wgOut->addWikiText( wfMsg( "undeletehistorynoadmin" ) );
}
# List all stored revisions
$revisions = $archive->listRevisions();
$files = $archive->listFiles();
$haveRevisions = $revisions && $revisions->numRows() > 0;
$haveFiles = $files && $files->numRows() > 0;
# Batch existence check on user and talk pages
if( $haveRevisions ) {
$batch = new LinkBatch();
while( $row = $revisions->fetchObject() ) {
$batch->addObj( Title::makeTitleSafe( NS_USER, $row->ar_user_text ) );
$batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->ar_user_text ) );
}
$batch->execute();
$revisions->seek( 0 );
}
if( $haveFiles ) {
$batch = new LinkBatch();
while( $row = $files->fetchObject() ) {
$batch->addObj( Title::makeTitleSafe( NS_USER, $row->fa_user_text ) );
$batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->fa_user_text ) );
}
$batch->execute();
$files->seek( 0 );
}
if ( $this->mAllowed ) {
$titleObj = SpecialPage::getTitleFor( "Undelete" );
$action = $titleObj->getLocalURL( "action=submit" );
# Start the form here
$top = Xml::openElement( 'form', array( 'method' => 'post', 'action' => $action, 'id' => 'undelete' ) );
$wgOut->addHtml( $top );
}
# Show relevant lines from the deletion log:
$wgOut->addHTML( "<h2>" . htmlspecialchars( LogPage::logName( 'delete' ) ) . "</h2>\n" );
$logViewer = new LogViewer(
new LogReader(
new FauxRequest(
array(
'page' => $this->mTargetObj->getPrefixedText(),
'type' => 'delete'
)
)
), LogViewer::NO_ACTION_LINK
);
$logViewer->showList( $wgOut );
if( $this->mAllowed && ( $haveRevisions || $haveFiles ) ) {
# Format the user-visible controls (comment field, submission button)
# in a nice little table
$align = $wgContLang->isRtl() ? 'left' : 'right';
$table =
Xml::openElement( 'fieldset' ) .
Xml::openElement( 'table' ) .
"<tr>
<td colspan='2'>" .
wfMsgWikiHtml( 'undeleteextrahelp' ) .
"</td>
</tr>
<tr>
<td align='$align'>" .
Xml::label( wfMsg( 'undeletecomment' ), 'wpComment' ) .
"</td>
<td>" .
Xml::input( 'wpComment', 50, $this->mComment ) .
"</td>
</tr>
<tr>
<td> </td>
<td>" .
Xml::submitButton( wfMsg( 'undeletebtn' ), array( 'name' => 'restore', 'id' => 'mw-undelete-submit' ) ) .
Xml::element( 'input', array( 'type' => 'reset', 'value' => wfMsg( 'undeletereset' ), 'id' => 'mw-undelete-reset' ) ) .
"</td>
</tr>" .
Xml::closeElement( 'table' ) .
Xml::closeElement( 'fieldset' );
$wgOut->addHtml( $table );
}
$wgOut->addHTML( "<h2>" . htmlspecialchars( wfMsg( "history" ) ) . "</h2>\n" );
if( $haveRevisions ) {
# The page's stored (deleted) history:
$wgOut->addHTML("<ul>");
$target = urlencode( $this->mTarget );
while( $row = $revisions->fetchObject() ) {
$ts = wfTimestamp( TS_MW, $row->ar_timestamp );
if ( $this->mAllowed ) {
$checkBox = Xml::check( "ts$ts" );
$pageLink = $sk->makeKnownLinkObj( $titleObj,
$wgLang->timeanddate( $ts, true ),
"target=$target×tamp=$ts" );
} else {
$checkBox = '';
$pageLink = $wgLang->timeanddate( $ts, true );
}
$userLink = $sk->userLink( $row->ar_user, $row->ar_user_text ) . $sk->userToolLinks( $row->ar_user, $row->ar_user_text );
$stxt = '';
if (!is_null($size = $row->ar_len)) {
if ($size == 0) {
$stxt = wfMsgHtml('historyempty');
} else {
$stxt = wfMsgHtml('historysize', $wgLang->formatNum( $size ) );
}
}
$comment = $sk->commentBlock( $row->ar_comment );
$wgOut->addHTML( "<li>$checkBox $pageLink . . $userLink $stxt $comment</li>\n" );
}
$revisions->free();
$wgOut->addHTML("</ul>");
} else {
$wgOut->addWikiText( wfMsg( "nohistory" ) );
}
if( $haveFiles ) {
$wgOut->addHtml( "<h2>" . wfMsgHtml( 'filehist' ) . "</h2>\n" );
$wgOut->addHtml( "<ul>" );
while( $row = $files->fetchObject() ) {
$ts = wfTimestamp( TS_MW, $row->fa_timestamp );
if ( $this->mAllowed && $row->fa_storage_key ) {
$checkBox = Xml::check( "fileid" . $row->fa_id );
$key = urlencode( $row->fa_storage_key );
$target = urlencode( $this->mTarget );
$pageLink = $sk->makeKnownLinkObj( $titleObj,
$wgLang->timeanddate( $ts, true ),
"target=$target&file=$key" );
} else {
$checkBox = '';
$pageLink = $wgLang->timeanddate( $ts, true );
}
$userLink = $sk->userLink( $row->fa_user, $row->fa_user_text ) . $sk->userToolLinks( $row->fa_user, $row->fa_user_text );
$data =
wfMsgHtml( 'widthheight',
$wgLang->formatNum( $row->fa_width ),
$wgLang->formatNum( $row->fa_height ) ) .
' (' .
wfMsgHtml( 'nbytes', $wgLang->formatNum( $row->fa_size ) ) .
')';
$comment = $sk->commentBlock( $row->fa_description );
$wgOut->addHTML( "<li>$checkBox $pageLink . . $userLink $data $comment</li>\n" );
}
$files->free();
$wgOut->addHTML( "</ul>" );
}
if ( $this->mAllowed ) {
# Slip in the hidden controls here
$misc = Xml::hidden( 'target', $this->mTarget );
$misc .= Xml::hidden( 'wpEditToken', $wgUser->editToken() );
$misc .= Xml::closeElement( 'form' );
$wgOut->addHtml( $misc );
}
return true;
}
function undelete() {
global $wgOut, $wgUser;
if( !is_null( $this->mTargetObj ) ) {
$archive = new PageArchive( $this->mTargetObj );
$ok = $archive->undelete(
$this->mTargetTimestamp,
$this->mComment,
$this->mFileVersions );
if( $ok ) {
$skin = $wgUser->getSkin();
$link = $skin->makeKnownLinkObj( $this->mTargetObj );
$wgOut->addHtml( wfMsgWikiHtml( 'undeletedpage', $link ) );
} else {
$wgOut->showFatalError( wfMsg( "cannotundelete" ) );
}
// Show file deletion warnings and errors
$status = $archive->getFileStatus();
if ( $status && !$status->isGood() ) {
$wgOut->addWikiText( $status->getWikiText( 'undelete-error-short', 'undelete-error-long' ) );
}
} else {
$wgOut->showFatalError( wfMsg( "cannotundelete" ) );
}
return false;
}
}
