mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/AbuseFilter.git
synced 2024-11-15 18:19:38 +00:00
423 lines
11 KiB
PHP
423 lines
11 KiB
PHP
<?php
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/**
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* Like TableDiffFormatter, but will always render the full context
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* (even for empty diffs).
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*
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* @private
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*/
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class TableDiffFormatterFullContext extends TableDiffFormatter {
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/**
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* Format a diff.
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*
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* @param Diff $diff
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* @return string The formatted output.
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*/
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function format( $diff ) {
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$xlen = $ylen = 0;
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// Calculate the length of the left and the right side
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foreach ( $diff->edits as $edit ) {
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if ( $edit->orig ) {
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$xlen += count( $edit->orig );
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}
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if ( $edit->closing ) {
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$ylen += count( $edit->closing );
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}
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}
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// Just render the diff with no preprocessing
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$this->startDiff();
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$this->block( 1, $xlen, 1, $ylen, $diff->edits );
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$end = $this->endDiff();
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return $end;
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}
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}
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class AbuseFilterViewDiff extends AbuseFilterView {
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public $mOldVersion = null;
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public $mNewVersion = null;
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public $mNextHistoryId = null;
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public $mFilter = null;
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function show() {
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$show = $this->loadData();
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$out = $this->getOutput();
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$links = [];
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if ( $this->mFilter ) {
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$links['abusefilter-history-backedit'] = $this->getTitle( $this->mFilter );
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$links['abusefilter-diff-backhistory'] = $this->getTitle( 'history/' . $this->mFilter );
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}
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foreach ( $links as $msg => $title ) {
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$links[$msg] = $this->linkRenderer->makeLink( $title, $this->msg( $msg )->text() );
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}
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$backlinks = $this->getLanguage()->pipeList( $links );
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$out->addHTML( Xml::tags( 'p', null, $backlinks ) );
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if ( $show ) {
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$out->addHTML( $this->formatDiff() );
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// Next and previous change links
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$links = [];
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if ( AbuseFilter::getFirstFilterChange( $this->mFilter ) !=
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$this->mOldVersion['meta']['history_id']
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) {
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// Create a "previous change" link if this isn't the first change of the given filter
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$links[] = $this->linkRenderer->makeLink(
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$this->getTitle(
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'history/' . $this->mFilter . '/diff/prev/' . $this->mOldVersion['meta']['history_id']
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),
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$this->getLanguage()->getArrow( 'backwards' ) .
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' ' . $this->msg( 'abusefilter-diff-prev' )->text()
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);
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}
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if ( !is_null( $this->mNextHistoryId ) ) {
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// Create a "next change" link if this isn't the last change of the given filter
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$links[] = $this->linkRenderer->makeLink(
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$this->getTitle(
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'history/' . $this->mFilter . '/diff/prev/' . $this->mNextHistoryId
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),
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$this->msg( 'abusefilter-diff-next' )->text() .
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' ' . $this->getLanguage()->getArrow( 'forwards' )
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);
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}
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if ( count( $links ) > 0 ) {
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$backlinks = $this->getLanguage()->pipeList( $links );
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$out->addHTML( Xml::tags( 'p', null, $backlinks ) );
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}
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}
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}
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function loadData() {
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$oldSpec = $this->mParams[3];
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$newSpec = $this->mParams[4];
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$this->mFilter = $this->mParams[1];
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if ( AbuseFilter::filterHidden( $this->mFilter )
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&& !$this->getUser()->isAllowedAny( 'abusefilter-modify', 'abusefilter-view-private' )
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) {
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$this->getOutput()->addWikiMsg( 'abusefilter-history-error-hidden' );
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return false;
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}
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$this->mOldVersion = $this->loadSpec( $oldSpec, $newSpec );
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$this->mNewVersion = $this->loadSpec( $newSpec, $oldSpec );
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if ( is_null( $this->mOldVersion ) || is_null( $this->mNewVersion ) ) {
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$this->getOutput()->addWikiMsg( 'abusefilter-diff-invalid' );
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return false;
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}
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$this->mNextHistoryId = $this->getNextHistoryId(
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$this->mNewVersion['meta']['history_id']
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);
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return true;
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}
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/**
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* Get the history ID of the next change
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*
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* @param int $historyId History id to find next change of
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* @return int|null Id of the next change or null if there isn't one
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*/
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function getNextHistoryId( $historyId ) {
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$dbr = wfGetDB( DB_REPLICA );
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$row = $dbr->selectRow(
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'abuse_filter_history',
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'afh_id',
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[
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'afh_filter' => $this->mFilter,
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'afh_id > ' . $dbr->addQuotes( $historyId ),
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],
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__METHOD__,
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[ 'ORDER BY' => 'afh_timestamp ASC' ]
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);
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if ( $row ) {
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return $row->afh_id;
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}
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return null;
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}
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function loadSpec( $spec, $otherSpec ) {
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static $dependentSpecs = [ 'prev', 'next' ];
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static $cache = [];
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if ( isset( $cache[$spec] ) ) {
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return $cache[$spec];
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}
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$dbr = wfGetDB( DB_REPLICA );
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$row = null;
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if ( is_numeric( $spec ) ) {
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$row = $dbr->selectRow(
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'abuse_filter_history',
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'*',
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[ 'afh_id' => $spec, 'afh_filter' => $this->mFilter ],
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__METHOD__
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);
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} elseif ( $spec == 'cur' ) {
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$row = $dbr->selectRow(
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'abuse_filter_history',
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'*',
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[ 'afh_filter' => $this->mFilter ],
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__METHOD__,
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[ 'ORDER BY' => 'afh_timestamp desc' ]
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);
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} elseif ( $spec == 'prev' && !in_array( $otherSpec, $dependentSpecs ) ) {
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// cached
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$other = $this->loadSpec( $otherSpec, $spec );
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$row = $dbr->selectRow(
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'abuse_filter_history',
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'*',
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[
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'afh_filter' => $this->mFilter,
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'afh_id<' . $dbr->addQuotes( $other['meta']['history_id'] ),
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],
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__METHOD__,
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[ 'ORDER BY' => 'afh_timestamp desc' ]
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);
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if ( $other && !$row ) {
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$t = $this->getTitle(
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'history/' . $this->mFilter . '/item/' . $other['meta']['history_id'] );
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$this->getOutput()->redirect( $t->getFullURL() );
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return null;
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}
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} elseif ( $spec == 'next' && !in_array( $otherSpec, $dependentSpecs ) ) {
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// cached
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$other = $this->loadSpec( $otherSpec, $spec );
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$row = $dbr->selectRow(
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'abuse_filter_history',
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'*',
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[
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'afh_filter' => $this->mFilter,
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'afh_id>' . $dbr->addQuotes( $other['meta']['history_id'] ),
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],
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__METHOD__,
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[ 'ORDER BY' => 'afh_timestamp ASC' ]
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);
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if ( $other && !$row ) {
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$t = $this->getTitle(
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'history/' . $this->mFilter . '/item/' . $other['meta']['history_id'] );
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$this->getOutput()->redirect( $t->getFullURL() );
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return null;
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}
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}
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if ( !$row ) {
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return null;
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}
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$data = $this->loadFromHistoryRow( $row );
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$cache[$spec] = $data;
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return $data;
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}
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function loadFromHistoryRow( $row ) {
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return [
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'meta' => [
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'history_id' => $row->afh_id,
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'modified_by' => $row->afh_user,
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'modified_by_text' => $row->afh_user_text,
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'modified' => $row->afh_timestamp,
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],
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'info' => [
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'description' => $row->afh_public_comments,
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'flags' => $row->afh_flags,
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'notes' => $row->afh_comments,
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'group' => $row->afh_group,
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],
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'pattern' => $row->afh_pattern,
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'actions' => unserialize( $row->afh_actions ),
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];
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}
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/**
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* @param string $timestamp
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* @param int $history_id
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* @return string
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*/
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function formatVersionLink( $timestamp, $history_id ) {
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$filter = $this->mFilter;
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$text = $this->getLanguage()->timeanddate( $timestamp, true );
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$title = $this->getTitle( "history/$filter/item/$history_id" );
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$link = $this->linkRenderer->makeLink( $title, $text );
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return $link;
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}
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/**
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* @return string
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*/
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function formatDiff() {
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$oldVersion = $this->mOldVersion;
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$newVersion = $this->mNewVersion;
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// headings
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$oldLink = $this->formatVersionLink(
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$oldVersion['meta']['modified'],
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$oldVersion['meta']['history_id']
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);
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$newLink = $this->formatVersionLink(
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$newVersion['meta']['modified'],
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$newVersion['meta']['history_id']
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);
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$oldUserLink = Linker::userLink(
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$oldVersion['meta']['modified_by'],
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$oldVersion['meta']['modified_by_text']
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);
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$newUserLink = Linker::userLink(
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$newVersion['meta']['modified_by'],
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$newVersion['meta']['modified_by_text']
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);
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$headings = '';
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$headings .= Xml::tags( 'th', null,
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$this->msg( 'abusefilter-diff-item' )->parse() );
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$headings .= Xml::tags( 'th', null,
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$this->msg( 'abusefilter-diff-version' )
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->rawParams( $oldLink, $oldUserLink )
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->params( $newVersion['meta']['modified_by_text'] )
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->parse()
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);
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$headings .= Xml::tags( 'th', null,
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$this->msg( 'abusefilter-diff-version' )
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->rawParams( $newLink, $newUserLink )
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->params( $newVersion['meta']['modified_by_text'] )
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->parse()
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);
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$headings = Xml::tags( 'tr', null, $headings );
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// Basic info
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$info = '';
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$info .= $this->getHeaderRow( 'abusefilter-diff-info' );
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$info .= $this->getDiffRow(
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'abusefilter-edit-description',
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$oldVersion['info']['description'],
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$newVersion['info']['description']
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);
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global $wgAbuseFilterValidGroups;
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if (
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count( $wgAbuseFilterValidGroups ) > 1 ||
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$oldVersion['info']['group'] != $newVersion['info']['group']
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) {
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$info .= $this->getDiffRow(
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'abusefilter-edit-group',
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AbuseFilter::nameGroup( $oldVersion['info']['group'] ),
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AbuseFilter::nameGroup( $newVersion['info']['group'] )
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);
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}
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$info .= $this->getDiffRow(
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'abusefilter-edit-flags',
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AbuseFilter::formatFlags( $oldVersion['info']['flags'] ),
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AbuseFilter::formatFlags( $newVersion['info']['flags'] )
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);
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$info .= $this->getDiffRow(
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'abusefilter-edit-notes',
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$oldVersion['info']['notes'],
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$newVersion['info']['notes']
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);
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// Pattern
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$info .= $this->getHeaderRow( 'abusefilter-diff-pattern' );
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$info .= $this->getDiffRow(
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'abusefilter-edit-rules',
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$oldVersion['pattern'],
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$newVersion['pattern'],
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'text'
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);
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// Actions
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$oldActions = $this->stringifyActions( $oldVersion['actions'] );
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$newActions = $this->stringifyActions( $newVersion['actions'] );
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$info .= $this->getHeaderRow( 'abusefilter-edit-consequences' );
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$info .= $this->getDiffRow(
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'abusefilter-edit-consequences',
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$oldActions,
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$newActions
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);
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$html = "<table class='wikitable'>
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<thead>$headings</thead>
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<tbody>$info</tbody>
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</table>";
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$html = Xml::tags( 'h2', null, $this->msg( 'abusefilter-diff-title' )->parse() ) . $html;
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return $html;
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}
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/**
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* @param array $actions
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* @return array
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*/
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function stringifyActions( $actions ) {
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$lines = [];
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ksort( $actions );
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foreach ( $actions as $action => $parameters ) {
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$lines[] = AbuseFilter::formatAction( $action, $parameters );
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}
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if ( !count( $lines ) ) {
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$lines[] = '';
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}
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return $lines;
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}
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/**
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* @param string $msg
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* @return string
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*/
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function getHeaderRow( $msg ) {
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$html = $this->msg( $msg )->parse();
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$html = Xml::tags( 'th', [ 'colspan' => 3 ], $html );
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$html = Xml::tags( 'tr', [ 'class' => 'mw-abusefilter-diff-header' ], $html );
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return $html;
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}
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/**
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* @param string $msg
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* @param array|string $old
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* @param array|string $new
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* @return string
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*/
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function getDiffRow( $msg, $old, $new ) {
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if ( !is_array( $old ) ) {
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$old = explode( "\n", preg_replace( "/\\\r\\\n?/", "\n", $old ) );
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}
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if ( !is_array( $new ) ) {
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$new = explode( "\n", preg_replace( "/\\\r\\\n?/", "\n", $new ) );
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}
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$diffEngine = new DifferenceEngine( $this->getContext() );
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$diffEngine->showDiffStyle();
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$diff = new Diff( $old, $new );
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$formatter = new TableDiffFormatterFullContext();
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$formattedDiff = $diffEngine->addHeader( $formatter->format( $diff ), '', '' );
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return Xml::tags( 'tr', null,
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Xml::tags( 'th', null, $this->msg( $msg )->parse() ) .
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Xml::tags( 'td', [ 'colspan' => 2 ], $formattedDiff )
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) . "\n";
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}
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}
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