mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/ReplaceText
synced 2024-11-15 19:09:27 +00:00
309 lines
12 KiB
PHP
309 lines
12 KiB
PHP
<?php
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if (!defined('MEDIAWIKI')) die();
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class ReplaceText extends SpecialPage {
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/**
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* Constructor
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*/
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public function __construct() {
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parent::__construct('ReplaceText', 'replacetext');
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wfLoadExtensionMessages('ReplaceText');
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}
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function execute( $query ) {
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global $wgUser, $wgOut;
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if ( ! $wgUser->isAllowed('replacetext') ) {
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$wgOut->permissionRequired('replacetext');
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return;
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}
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$this->setHeaders();
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doSpecialReplaceText();
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}
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function displayConfirmForm($message) {
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global $wgRequest, $wgContLang;
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$target_str = $wgRequest->getVal('target_str');
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$replacement_str = $wgRequest->getVal('replacement_str');
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// HTML-escape strings before passing them in the form
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$target_str = htmlentities($target_str);
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$replacement_str = htmlentities($replacement_str);
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$continue_label = wfMsg('replacetext_continue');
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$cancel_label = wfMsg('replacetext_cancel');
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// set 'title' as hidden field, in case there's no URL niceness
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$mw_namespace_labels = $wgContLang->getNamespaces();
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$special_namespace = $mw_namespace_labels[NS_SPECIAL];
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$text =<<<END
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<form method="post" action="">
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<input type="hidden" name="title" value="$special_namespace:ReplaceText">
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<input type="hidden" name="target_str" value="$target_str">
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<input type="hidden" name="replacement_str" value="$replacement_str">
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<p>$message</p>
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<p><input type="Submit" name="confirm" value="$continue_label"></p>
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<p>$cancel_label</p>
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</form>
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END;
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return $text;
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}
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}
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function doSpecialReplaceText() {
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global $wgUser, $wgOut, $wgRequest, $wgContLang;
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// set 'title' as hidden field, in case there's no URL niceness
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$mw_namespace_labels = $wgContLang->getNamespaces();
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$special_namespace = $mw_namespace_labels[NS_SPECIAL];
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if ($wgRequest->getCheck('replace')) {
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$target_str = $wgRequest->getVal('target_str');
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$replacement_str = $wgRequest->getVal('replacement_str');
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$replacement_params = array();
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$replacement_params['user_id'] = $wgUser->getId();
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$replacement_params['target_str'] = $target_str;
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$replacement_params['replacement_str'] = $replacement_str;
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$replacement_params['edit_summary'] = wfMsgForContent('replacetext_editsummary', $target_str, $replacement_str);
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$replacement_params['create_redirect'] = false;
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foreach ($wgRequest->getValues() as $key => $value) {
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if ($key == 'create-redirect' && $value == '1') {
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$replacement_params['create_redirect'] = true;
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}
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}
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$jobs = array();
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foreach ($wgRequest->getValues() as $key => $value) {
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if ($value == '1') {
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if (strpos($key, 'move-') !== false) {
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$title = Title::newFromId(substr($key, 5));
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$replacement_params['move_page'] = true;
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} else {
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$title = Title::newFromId($key);
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}
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if ($title !== null)
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$jobs[] = new ReplaceTextJob( $title, $replacement_params );
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}
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}
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Job::batchInsert( $jobs );
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$num_modified_pages = count($jobs);
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$wgOut->addHTML( wfMsgExt( 'replacetext_success', array( 'escape', 'parsemag' ), $target_str, $replacement_str, $num_modified_pages) );
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// link back to starting form
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$rt_title = Title::makeTitleSafe( NS_SPECIAL, 'ReplaceText' );
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$sk = $wgUser->getSkin();
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$wgOut->addHTML( '<p>' . $sk->makeKnownLinkObj( $rt_title, wfMsg( 'replacetext_return' ) ) . '</p>' );
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} elseif ( $wgRequest->getCheck('target_str') ) { // very long elseif, look for "end elseif"
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$dbr =& wfGetDB( DB_SLAVE );
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$fname = 'doSpecialReplaceText';
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$target_str = $wgRequest->getVal('target_str');
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$replacement_str = $wgRequest->getVal('replacement_str');
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if (! $wgRequest->getCheck('confirm')) {
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// display a page to make the user confirm the replacement, if the
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// replacement string is either blank or found elsewhere on the wiki
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// (since undoing the replacement would be difficult in either case)
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if ($replacement_str == '') {
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$text = wfMsg('replacetext_blankwarning');
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$wgOut->addHTML(ReplaceText::displayConfirmForm($text));
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return;
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} else {
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// get the number of pages in which the replacement string appears
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$page_table = $dbr->tableName('page');
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$revision_table = $dbr->tableName('revision');
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$text_table = $dbr->tableName('text');
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$talk_ns = NS_TALK;
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$usertalk_ns = NS_USER_TALK;
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$mediawiki_ns = NS_MEDIAWIKI;
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$sql_replacement_str = str_replace("'", "\'", $replacement_str);
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$sql = "SELECT count(*)
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FROM $page_table p
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JOIN $revision_table r ON p.page_latest = r.rev_id
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JOIN $text_table t ON r.rev_text_id = t.old_id
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WHERE t.old_text LIKE '%$sql_replacement_str%'
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AND p.page_namespace != $talk_ns
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AND p.page_namespace != $usertalk_ns
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AND p.page_namespace != $mediawiki_ns";
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$res = $dbr->query($sql);
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$row = $dbr->fetchRow($res);
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$num_pages_with_replacement_str = $row[0];
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// if there are any, the user most confirm the replacement
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if ($num_pages_with_replacement_str > 0) {
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$text = wfMsgExt( 'replacetext_warning', array( 'escape', 'parsemag' ), $num_pages_with_replacement_str, $replacement_str );
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$wgOut->addHTML(ReplaceText::displayConfirmForm($text));
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return;
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}
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}
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}
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$jobs = array();
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$num_modified_pages = 0;
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$found_titles = array();
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$titles_for_move = array();
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$unmoveable_titles = array();
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$angle_brackets = array('<', '>');
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$escaped_angle_brackets = array('<', '>');
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// get the set of pages that contain the target string, and display
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// the name and "context" (the text around the string) of each
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$page_table = $dbr->tableName('page');
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$revision_table = $dbr->tableName('revision');
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$text_table = $dbr->tableName('text');
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$talk_ns = NS_TALK;
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$usertalk_ns = NS_USER_TALK;
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$mediawiki_ns = NS_MEDIAWIKI;
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// escape single quote and backslash for SQL - for some reason, the
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// backslash needs to be escaped twice (plus once for PHP)
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$sql_target_str = str_replace(array("\\", "'"), array("\\\\\\\\", "\'"), $target_str);
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# FIXME: suggestions for improvement at http://www.mediawiki.org/wiki/Special:Code/MediaWiki/43239#c608
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$sql = "SELECT p.page_title AS title, p.page_namespace AS namespace, t.old_text AS text
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FROM $page_table p
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JOIN $revision_table r ON p.page_latest = r.rev_id
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JOIN $text_table t ON r.rev_text_id = t.old_id
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WHERE t.old_text LIKE '%$sql_target_str%'
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AND p.page_namespace != $talk_ns
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AND p.page_namespace != $usertalk_ns
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AND p.page_namespace != $mediawiki_ns
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ORDER BY p.page_namespace, p.page_title";
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$res = $dbr->query($sql);
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$contextchars = $wgUser->getOption( 'contextchars', 40 );
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while( $row = $dbr->fetchObject( $res ) ) {
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$title = Title::makeTitleSafe($row->namespace, $row->title);
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$article_text = $row->text;
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$target_pos = strpos($article_text, $target_str);
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$context_str = str_replace($angle_brackets, $escaped_angle_brackets, $wgContLang->truncate(substr($article_text, 0, $target_pos), -$contextchars ) );
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$context_str .= "<span class=\"searchmatch\">" . str_replace($angle_brackets, $escaped_angle_brackets, substr($article_text, $target_pos, strlen($target_str))) . "</span>";
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$context_str .= str_replace($angle_brackets, $escaped_angle_brackets, $wgContLang->truncate(substr($article_text, $target_pos + strlen($target_str)), $contextchars ) );
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$found_titles[] = array($title, $context_str);
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$num_modified_pages++;
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}
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if ($wgRequest->getCheck('move_pages')) {
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$sql_target_str2 = str_replace(' ', '_', $sql_target_str);
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$sql2 = "SELECT p.page_title AS title, p.page_namespace AS namespace
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FROM $page_table p
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WHERE p.page_title LIKE '%$sql_target_str2%'
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ORDER BY p.page_namespace, p.page_title";
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$res = $dbr->query($sql2);
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while( $row = $dbr->fetchObject( $res ) ) {
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$title = Title::makeTitleSafe($row->namespace, $row->title);
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// see if this move can happen
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$cur_page_name = str_replace('_', ' ', $row->title);
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$new_page_name = str_replace($target_str, $replacement_str, $cur_page_name);
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$new_title = Title::makeTitleSafe($row->namespace, $new_page_name);
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$err = $title->isValidMoveOperation($new_title);
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if ($title->userCanMove(true) && (! is_array($err))) {
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$titles_for_move[] = $title;
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$num_modified_pages++;
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} else {
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$unmoveable_titles[] = $title;
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}
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}
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}
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if ($num_modified_pages == 0) {
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$wgOut->addHTML(wfMsg('replacetext_noreplacement', $target_str));
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// link back to starting form
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$rt_title = Title::makeTitleSafe( NS_SPECIAL, 'ReplaceText' );
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$sk = $wgUser->getSkin();
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$wgOut->addHTML( '<p>' . $sk->makeKnownLinkObj( $rt_title, wfMsg( 'replacetext_return' ) ) . '</p>' );
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} else {
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$javascript_text =<<<END
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<script type="text/javascript">
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function invertSelections() {
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form = document.getElementById('choose_pages');
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num_elements = form.elements.length;
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for (i = 0; i < num_elements; i++) {
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if (form.elements[i].type == "checkbox") {
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if (form.elements[i].checked == true)
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form.elements[i].checked = false;
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else
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form.elements[i].checked = true;
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}
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}
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}
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</script>
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END;
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$wgOut->addScript($javascript_text);
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$replace_label = wfMsg('replacetext_replace');
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$choose_pages_label = wfMsgExt('replacetext_choosepages', array( 'escape', 'parsemag' ), $target_str, $replacement_str, count( $found_titles ) );
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$choose_pages_for_move_label = wfMsgExt( 'replacetext_choosepagesformove', array( 'escape', 'parsemag' ), count( $titles_for_move ) );
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$cannot_move_pages_label = wfMsgExt( 'replacetext_cannotmove', array( 'escape', 'parsemag' ), count( $unmoveable_titles ) );
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$skin = $wgUser->getSkin();
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// HTML-escape strings before passing them in the form
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$target_str = htmlentities($target_str);
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$replacement_str = htmlentities($replacement_str);
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$text =<<<END
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<p>$choose_pages_label</p>
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<form id="choose_pages" method="post">
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<input type="hidden" name="title" value="$special_namespace:ReplaceText">
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<input type="hidden" name="target_str" value="$target_str">
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<input type="hidden" name="replacement_str" value="$replacement_str">
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END;
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foreach ($found_titles as $value_pair) {
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list($title, $context_str) = $value_pair;
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$text .= Xml::check($title->getArticleID(), true);
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$text .= " " . $skin->makeLinkObj( $title, $title->prefix($title->getText()) ) . " - <small>$context_str</small><br />\n";
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}
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if (count($titles_for_move) > 0) {
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$text .= "<br />\n<p>$choose_pages_for_move_label</p>\n";
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foreach ($titles_for_move as $title) {
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$text .= Xml::check('move-' . $title->getArticleID(), true);
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$text .= " " . $skin->makeLinkObj( $title, $title->prefix($title->getText()) ) . "<br />\n";
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}
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$text .= '<p>' . wfMsg('replacetext_savemovedpages') . wfMsg('colon-separator');
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$text .= Xml::check('create-redirect', true) . "</p>\n";
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}
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$text .=<<<END
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<p><input type="Submit" name="replace" value="$replace_label"></p>
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END;
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// only show "invert selections" link if there are more than five pages
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if (count($found_titles) + count($titles_for_move) > 5) {
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$invert_selections_label = wfMsg('replacetext_invertselections');
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$text .=<<<END
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<p><a href="javascript:;" onclick="invertSelections(); return false;">$invert_selections_label</a></p>
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END;
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}
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$text .= " </form>\n";
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if (count($unmoveable_titles) > 0) {
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$text .= "<p>$cannot_move_pages_label</p>\n";
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$text .= "<ul>\n";
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foreach ($unmoveable_titles as $title) {
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$text .= "<li>{$skin->makeLinkObj( $title, $title->prefix($title->getText()) )}<br />\n";
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}
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$text .= "</ul>\n";
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}
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$wgOut->addHTML($text);
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}
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} // end elseif
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else {
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$replacement_label = wfMsg('replacetext_docu');
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$replacement_note = wfMsg('replacetext_note');
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$original_text_label = wfMsg('replacetext_originaltext');
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$replacement_text_label = wfMsg('replacetext_replacementtext');
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$move_pages_label = wfMsg('replacetext_movepages');
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$continue_label = wfMsg('replacetext_continue');
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$text =<<<END
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<form method="get" action="">
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<input type="hidden" name="title" value="$special_namespace:ReplaceText">
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<p>$replacement_label</p>
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<p>$replacement_note</p>
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<table>
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<tr>
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<td>$original_text_label:</td>
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<td><input type="text" length="10" name="target_str"></td>
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</tr>
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<tr>
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<td>$replacement_text_label:</td>
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<td><input type="text" length="10" name="replacement_str"></td>
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</tr>
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</table>
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<p><input type="checkbox" name="move_pages"> $move_pages_label</p>
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<p><input type="Submit" value="$continue_label"></p>
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</form>
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END;
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$wgOut->addHTML($text);
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}
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}
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