<?php
/**
- * Performs the watch and unwatch actions on a page
+ * Handle page deletion
+ *
+ * Copyright © 2012 Timo Tijhof
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* @file
* @ingroup Actions
+ * @author Timo Tijhof
*/
-class DeleteAction extends Action {
-
- public function getName(){
- return 'delete';
- }
+/**
+ * Handle page deletion
+ *
+ * This is a wrapper that will call Article::delete().
+ *
+ * @ingroup Actions
+ */
+class DeleteAction extends FormlessAction {
- public function getRestriction(){
+ public function getName() {
return 'delete';
}
- protected function getDescription(){
- return wfMsg( 'delete-confirm', $this->getTitle()->getPrefixedText() );
- }
-
- /**
- * Check that the deletion can be executed. In addition to checking the user permissions,
- * check that the page is not too big and has not already been deleted.
- * @throws ErrorPageError
- * @see Action::checkCanExecute
- */
- protected function checkCanExecute( User $user ){
-
- // Check that the article hasn't already been deleted
- $dbw = wfGetDB( DB_MASTER );
- $conds = $this->getTitle()->pageCond();
- $latest = $dbw->selectField( 'page', 'page_latest', $conds, __METHOD__ );
- if ( $latest === false ) {
- // Get the deletion log
- $log = '';
- LogEventsList::showLogExtract(
- $log,
- 'delete',
- $this->getTitle()->getPrefixedText()
- );
-
- $msg = new Message( 'cannotdelete' );
- $msg->params( $this->getTitle()->getPrefixedText() ); // This parameter is parsed
- $msg->rawParams( $log ); // This is not
-
- throw new ErrorPageError( 'internalerror', $msg );
- }
-
- // Limit deletions of big pages
- $bigHistory = $this->isBigDeletion();
- if ( $bigHistory && !$user->isAllowed( 'bigdelete' ) ) {
- global $wgDeleteRevisionsLimit;
- throw new ErrorPageError(
- 'internalerror',
- 'delete-toobig',
- $this->getContext()->lang->formatNum( $wgDeleteRevisionsLimit )
- );
- }
-
- return parent::checkCanExecute( $user );
- }
-
- protected function getFormFields(){
- // TODO: add more useful things here?
- $infoText = Html::rawElement(
- 'strong',
- array(),
- Linker::link( $this->getTitle(), $this->getTitle()->getText() )
- );
-
- $arr = array(
- 'Page' => array(
- 'type' => 'info',
- 'raw' => true,
- 'default' => $infoText,
- ),
- 'Reason' => array(
- 'type' => 'selectandother',
- 'label-message' => 'deletecomment',
- 'options-message' => 'deletereason-dropdown',
- 'size' => '60',
- 'maxlength' => '255',
- 'default' => self::getAutoReason( $this->page),
- ),
- );
-
- if( $this->getUser()->isLoggedIn() ){
- $arr['Watch'] = array(
- 'type' => 'check',
- 'label-message' => 'watchthis',
- 'default' => $this->getUser()->getBoolOption( 'watchdeletion' ) || $this->getTitle()->userIsWatching()
- );
- }
-
- if( $this->getUser()->isAllowed( 'suppressrevision' ) ){
- $arr['Suppress'] = array(
- 'type' => 'check',
- 'label-message' => 'revdelete-suppress',
- 'default' => false,
- );
- }
-
- return $arr;
- }
-
- /**
- * Text to go at the top of the form, before the opening fieldset
- * @see Action::preText()
- * @return String
- */
- protected function preText() {
-
- // If the page has a history, insert a warning
- if ( $this->page->estimateRevisionCount() ) {
- global $wgLang;
-
- $link = Linker::link(
- $this->getTitle(),
- wfMsgHtml( 'history' ),
- array( 'rel' => 'archives' ),
- array( 'action' => 'history' )
- );
-
- return Html::rawElement(
- 'strong',
- array( 'class' => 'mw-delete-warning-revisions' ),
- wfMessage(
- 'historywarning',
- $wgLang->formatNum( $this->page->estimateRevisionCount() )
- )->rawParams( $link )->parse()
- );
- }
- }
-
- /**
- * Text to go at the bottom of the form, below the closing fieldset
- * @see Action::postText()
- * @return string
- */
- protected function postText(){
- $s = '';
- LogEventsList::showLogExtract(
- $s,
- 'delete',
- $this->getTitle()->getPrefixedText()
- );
- return Html::element( 'h2', array(), LogPage::logName( 'delete' ) ) . $s;
- }
-
- protected function alterForm( HTMLForm &$form ){
- $form->setWrapperLegend( wfMsgExt( 'delete-legend', array( 'parsemag', 'escapenoentities' ) ) );
-
- if ( $this->getUser()->isAllowed( 'editinterface' ) ) {
- $link = Linker::link(
- Title::makeTitle( NS_MEDIAWIKI, 'Deletereason-dropdown' ),
- wfMsgHtml( 'delete-edit-reasonlist' ),
- array(),
- array( 'action' => 'edit' )
- );
- $form->addHeaderText( '<p class="mw-delete-editreasons">' . $link . '</p>' );
- }
- }
-
- /**
- * Function called on form submission. Privilege checks and validation have already been
- * completed by this point; we just need to jump out to the heavy-lifting function,
- * which is implemented as a static method so it can be called from other places
- * TODO: make those other places call $action->execute() properly
- * @see Action::onSubmit()
- * @param $data Array
- * @return Array|Bool
- */
- public function onSubmit( $data ){
- $status = self::doDeleteArticle( $this->page, $this->getContext(), $data, true );
- return $status;
- }
-
- public function onSuccess(){
- // Watch or unwatch, if requested
- if( $this->getRequest()->getCheck( 'wpWatch' ) && $this->getUser()->isLoggedIn() ) {
- Action::factory( 'watch', $this->page )->execute();
- } elseif ( $this->getTitle()->userIsWatching() ) {
- Action::factory( 'unwatch', $this->page )->execute();
- }
-
- $this->getOutput()->setPagetitle( wfMsg( 'actioncomplete' ) );
- $this->getOutput()->addWikiMsg(
- 'deletedtext',
- $this->getTitle()->getPrefixedText(),
- '[[Special:Log/delete|' . wfMsgNoTrans( 'deletionlog' ) . ']]'
- );
- $this->getOutput()->returnToMain( false );
- }
-
- /**
- * @return bool whether or not the page surpasses $wgDeleteRevisionsLimit revisions
- */
- protected function isBigDeletion() {
- global $wgDeleteRevisionsLimit;
- return $wgDeleteRevisionsLimit && $this->page->estimateRevisionCount() > $wgDeleteRevisionsLimit;
+ public function onView() {
+ return null;
}
- /**
- * Back-end article deletion
- * Deletes the article with database consistency, writes logs, purges caches
- *
- * @param $commit boolean defaults to true, triggers transaction end
- * @return Bool|Array true if successful, error array on failure
- */
- public static function doDeleteArticle( Article $page, RequestContext $context, array $data, $commit = true ) {
- global $wgDeferredUpdateList, $wgUseTrackbacks;
-
- wfDebug( __METHOD__ . "\n" );
-
- // The normal syntax from HTMLSelectAndOtherField is for the reason to be in the form
- // 'Reason' => array( <full reason>, <dropdown>, <custom> ), but it's reasonable for other
- // functions to just pass 'Reason' => <reason>
- $data['Reason'] = (array)$data['Reason'];
-
- $error = null;
- if ( !wfRunHooks( 'ArticleDelete', array( &$page, &$context->user, &$data['Reason'][0], &$error ) ) ) {
- return $error;
- }
-
- $title = $page->getTitle();
- $id = $page->getID( Title::GAID_FOR_UPDATE );
-
- if ( $title->getDBkey() === '' || $id == 0 ) {
- return false;
- }
-
- $updates = new SiteStatsUpdate( 0, 1, - (int)$page->isCountable( $page->getRawText() ), -1 );
- array_push( $wgDeferredUpdateList, $updates );
-
- // Bitfields to further suppress the content
- if ( isset( $data['Suppress'] ) && $data['Suppress'] ) {
- $bitfield = 0;
- // This should be 15...
- $bitfield |= Revision::DELETED_TEXT;
- $bitfield |= Revision::DELETED_COMMENT;
- $bitfield |= Revision::DELETED_USER;
- $bitfield |= Revision::DELETED_RESTRICTED;
-
- $logtype = 'suppress';
- } else {
- // Otherwise, leave it unchanged
- $bitfield = 'rev_deleted';
- $logtype = 'delete';
- }
-
- $dbw = wfGetDB( DB_MASTER );
- $dbw->begin();
- // For now, shunt the revision data into the archive table.
- // Text is *not* removed from the text table; bulk storage
- // is left intact to avoid breaking block-compression or
- // immutable storage schemes.
- //
- // For backwards compatibility, note that some older archive
- // table entries will have ar_text and ar_flags fields still.
- //
- // In the future, we may keep revisions and mark them with
- // the rev_deleted field, which is reserved for this purpose.
- $dbw->insertSelect(
- 'archive',
- array( 'page', 'revision' ),
- array(
- 'ar_namespace' => 'page_namespace',
- 'ar_title' => 'page_title',
- 'ar_comment' => 'rev_comment',
- 'ar_user' => 'rev_user',
- 'ar_user_text' => 'rev_user_text',
- 'ar_timestamp' => 'rev_timestamp',
- 'ar_minor_edit' => 'rev_minor_edit',
- 'ar_rev_id' => 'rev_id',
- 'ar_text_id' => 'rev_text_id',
- 'ar_text' => "''", // Be explicit to appease
- 'ar_flags' => "''", // MySQL's "strict mode"...
- 'ar_len' => 'rev_len',
- 'ar_page_id' => 'page_id',
- 'ar_deleted' => $bitfield
- ),
- array(
- 'page_id' => $id,
- 'page_id = rev_page'
- ),
- __METHOD__
- );
-
- // Delete restrictions for it
- $dbw->delete( 'page_restrictions', array ( 'pr_page' => $id ), __METHOD__ );
-
- // Now that it's safely backed up, delete it
- $dbw->delete( 'page', array( 'page_id' => $id ), __METHOD__ );
-
- // getArticleId() uses slave, could be laggy
- if ( $dbw->affectedRows() == 0 ) {
- $dbw->rollback();
- return false;
- }
-
- // Fix category table counts
- $res = $dbw->select( 'categorylinks', 'cl_to', array( 'cl_from' => $id ), __METHOD__ );
- $cats = array();
- foreach ( $res as $row ) {
- $cats[] = $row->cl_to;
- }
- $page->updateCategoryCounts( array(), $cats );
-
- // If using cascading deletes, we can skip some explicit deletes
- if ( !$dbw->cascadingDeletes() ) {
- $dbw->delete( 'revision', array( 'rev_page' => $id ), __METHOD__ );
-
- if ( $wgUseTrackbacks ){
- $dbw->delete( 'trackbacks', array( 'tb_page' => $id ), __METHOD__ );
- }
-
- // Delete outgoing links
- $dbw->delete( 'pagelinks', array( 'pl_from' => $id ) );
- $dbw->delete( 'imagelinks', array( 'il_from' => $id ) );
- $dbw->delete( 'categorylinks', array( 'cl_from' => $id ) );
- $dbw->delete( 'templatelinks', array( 'tl_from' => $id ) );
- $dbw->delete( 'externallinks', array( 'el_from' => $id ) );
- $dbw->delete( 'langlinks', array( 'll_from' => $id ) );
- $dbw->delete( 'redirect', array( 'rd_from' => $id ) );
- }
-
- // If using cleanup triggers, we can skip some manual deletes
- if ( !$dbw->cleanupTriggers() ) {
- // Clean up recentchanges entries...
- $dbw->delete( 'recentchanges',
- array(
- 'rc_type != ' . RC_LOG,
- 'rc_namespace' => $title->getNamespace(),
- 'rc_title' => $title->getDBkey() ),
- __METHOD__
- );
- $dbw->delete(
- 'recentchanges',
- array( 'rc_type != ' . RC_LOG, 'rc_cur_id' => $id ),
- __METHOD__
- );
- }
+ public function show() {
- // Clear caches
- // TODO: should this be in here or left in Article?
- Article::onArticleDelete( $title );
+ $this->page->delete();
- // Clear the cached article id so the interface doesn't act like we exist
- $title->resetArticleID( 0 );
-
- // Log the deletion, if the page was suppressed, log it at Oversight instead
- $log = new LogPage( $logtype );
-
- // Make sure logging got through
- $log->addEntry( 'delete', $title, $data['Reason'][0], array() );
-
- if ( $commit ) {
- $dbw->commit();
- }
-
- wfRunHooks( 'ArticleDeleteComplete', array( &$page, &$context->user, $data['Reason'][0], $id ) );
- return true;
}
- /**
- * Auto-generates a deletion reason. Also sets $this->hasHistory if the page has old
- * revisions.
- *
- * @return mixed String containing default reason or empty string, or boolean false
- * if no revision was found
- */
- public static function getAutoReason( Article $page ) {
- global $wgContLang;
-
- $dbw = wfGetDB( DB_MASTER );
- // Get the last revision
- $rev = Revision::newFromTitle( $page->getTitle() );
-
- if ( is_null( $rev ) ) {
- return false;
- }
-
- // Get the article's contents
- $contents = $rev->getText();
- $blank = false;
-
- // If the page is blank, use the text from the previous revision,
- // which can only be blank if there's a move/import/protect dummy revision involved
- if ( $contents == '' ) {
- $prev = $rev->getPrevious();
-
- if ( $prev ) {
- $contents = $prev->getText();
- $blank = true;
- }
- }
-
- // Find out if there was only one contributor
- // Only scan the last 20 revisions
- $res = $dbw->select( 'revision', 'rev_user_text',
- array(
- 'rev_page' => $page->getID(),
- $dbw->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0'
- ),
- __METHOD__,
- array( 'LIMIT' => 20 )
- );
-
- if ( $res === false ) {
- // This page has no revisions, which is very weird
- return false;
- }
-
- $row = $dbw->fetchObject( $res );
-
- if ( $row ) { // $row is false if the only contributor is hidden
- $onlyAuthor = $row->rev_user_text;
- // Try to find a second contributor
- foreach ( $res as $row ) {
- if ( $row->rev_user_text != $onlyAuthor ) { // Bug 22999
- $onlyAuthor = false;
- break;
- }
- }
- } else {
- $onlyAuthor = false;
- }
-
- // Generate the summary with a '$1' placeholder
- if ( $blank ) {
- // The current revision is blank and the one before is also
- // blank. It's just not our lucky day
- $reason = wfMessage( 'exbeforeblank', '$1' )->inContentLanguage()->text();
- } else {
- if ( $onlyAuthor ) {
- $reason = wfMessage( 'excontentauthor', '$1', $onlyAuthor )->inContentLanguage()->text();
- } else {
- $reason = wfMessage( 'excontent', '$1' )->inContentLanguage()->text();
- }
- }
-
- if ( $reason == '-' ) {
- // Allow these UI messages to be blanked out cleanly
- return '';
- }
-
- // Replace newlines with spaces to prevent uglyness
- $contents = preg_replace( "/[\n\r]/", ' ', $contents );
- // Calculate the maximum number of chars to get
- // Max content length = max comment length - length of the comment (excl. $1)
- $maxLength = 255 - ( strlen( $reason ) - 2 );
- $contents = $wgContLang->truncate( $contents, $maxLength );
- // Remove possible unfinished links
- $contents = preg_replace( '/\[\[([^\]]*)\]?$/', '$1', $contents );
- // Now replace the '$1' placeholder
- $reason = str_replace( '$1', $contents, $reason );
-
- return $reason;
- }
}
dépôts / lhc / web / wiklou.git / blobdiff