File DifferenceEngine.php has 1431 lines of code (exceeds 250 allowed). Consider refactoring.

Open

<?php
/**
 * User interface for the difference engine.
 *
 * This program is free software; you can redistribute it and/or modify

Method showDiffPage has 260 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function showDiffPage( $diffOnly = false ) {
        # Allow frames except in certain special cases
        $out = $this->getOutput();
        $out->setPreventClickjacking( false );
        $out->setRobotPolicy( 'noindex,nofollow' );

DifferenceEngine has 68 functions (exceeds 20 allowed). Consider refactoring.

Open

class DifferenceEngine extends ContextSource {

    use DeprecationHelper;

    /**

Function showDiffPage has a Cognitive Complexity of 57 (exceeds 5 allowed). Consider refactoring.

Open

    public function showDiffPage( $diffOnly = false ) {
        # Allow frames except in certain special cases
        $out = $this->getOutput();
        $out->setPreventClickjacking( false );
        $out->setRobotPolicy( 'noindex,nofollow' );

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Function getDiffBody has a Cognitive Complexity of 28 (exceeds 5 allowed). Consider refactoring.

Open

    public function getDiffBody() {
        $this->mCacheHit = true;
        // Check if the diff should be hidden from this user
        if ( !$this->isContentOverridden ) {
            if ( !$this->loadRevisionData() ) {

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Function loadRevisionData has a Cognitive Complexity of 23 (exceeds 5 allowed). Consider refactoring.

Open

    public function loadRevisionData() {
        if ( $this->mRevisionsLoaded ) {
            return $this->isContentOverridden ||
            ( $this->mOldRevisionRecord !== null && $this->mNewRevisionRecord !== null );
        }

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Method getDiffBody has 75 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function getDiffBody() {
        $this->mCacheHit = true;
        // Check if the diff should be hidden from this user
        if ( !$this->isContentOverridden ) {
            if ( !$this->loadRevisionData() ) {

Function renderNewRevision has a Cognitive Complexity of 21 (exceeds 5 allowed). Consider refactoring.

Open

    public function renderNewRevision() {
        if ( $this->isContentOverridden ) {
            // The code below only works with a RevisionRecord object. We could construct a
            // fake RevisionRecord (here or in setContent), but since this does not seem
            // needed at the moment, we'll just fail for now.

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Method loadRevisionData has 70 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function loadRevisionData() {
        if ( $this->mRevisionsLoaded ) {
            return $this->isContentOverridden ||
            ( $this->mOldRevisionRecord !== null && $this->mNewRevisionRecord !== null );
        }

Method renderNewRevision has 68 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function renderNewRevision() {
        if ( $this->isContentOverridden ) {
            // The code below only works with a RevisionRecord object. We could construct a
            // fake RevisionRecord (here or in setContent), but since this does not seem
            // needed at the moment, we'll just fail for now.

Method getMultiNotice has 61 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function getMultiNotice() {
        // The notice only make sense if we are diffing two saved revisions of the same page.
        if (
            !$this->mOldRevisionRecord || !$this->mNewRevisionRecord
            || !$this->mOldPage || !$this->mNewPage

Function getMultiNotice has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.

Open

    public function getMultiNotice() {
        // The notice only make sense if we are diffing two saved revisions of the same page.
        if (
            !$this->mOldRevisionRecord || !$this->mNewRevisionRecord
            || !$this->mOldPage || !$this->mNewPage

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Method getRevisionHeader has 52 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function getRevisionHeader( RevisionRecord $rev, $complete = '' ) {
        $lang = $this->getLanguage();
        $user = $this->getUser();
        $revtimestamp = $rev->getTimestamp();
        $timestamp = $lang->userTimeAndDate( $revtimestamp, $user );

Method addHeader has 51 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function addHeader( $diff, $otitle, $ntitle, $multi = '', $notice = '' ) {
        // shared.css sets diff in interface language/dir, but the actual content
        // is often in a different language, mostly the page content language/dir
        $header = Html::openElement( 'table', [
            'class' => [

Consider simplifying this complex logical expression.

Open

        if (
            !$this->mOldRevisionRecord || !$this->mNewRevisionRecord
            || !$this->mOldPage || !$this->mNewPage
            || !$this->mOldPage->equals( $this->mNewPage )
            || $this->mOldRevisionRecord->getId() === null

Function mapDiffPrevNext has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.

Open

    public function mapDiffPrevNext( $old, $new ) {
        if ( $new === 'prev' ) {
            // Show diff between revision $old and the previous one. Get previous one from DB.
            $newid = intval( $old );
            $oldid = false;

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Function addHeader has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.

Open

    public function addHeader( $diff, $otitle, $ntitle, $multi = '', $notice = '' ) {
        // shared.css sets diff in interface language/dir, but the actual content
        // is often in a different language, mostly the page content language/dir
        $header = Html::openElement( 'table', [
            'class' => [

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Function getSlotDiffRenderers has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.

Open

    protected function getSlotDiffRenderers() {
        if ( $this->isSlotDiffRenderer ) {
            throw new LogicException( __METHOD__ . ' called in slot diff renderer mode' );
        }

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Method getMarkPatrolledLinkInfo has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    protected function getMarkPatrolledLinkInfo() {
        $user = $this->getUser();
        $config = $this->getConfig();

        // Prepare a change patrol link, if applicable

Method getSlotContents has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    protected function getSlotContents() {
        if ( $this->isContentOverridden ) {
            return [
                SlotRecord::MAIN => [ 'old' => $this->mOldContent, 'new' => $this->mNewContent ]
            ];

Method loadText has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function loadText() {
        if ( $this->mTextLoaded == 2 ) {
            return $this->loadRevisionData() &&
                ( $this->mOldRevisionRecord === false || $this->mOldContent )
                && $this->mNewContent;

Function getMarkPatrolledLinkInfo has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

    protected function getMarkPatrolledLinkInfo() {
        $user = $this->getUser();
        $config = $this->getConfig();

        // Prepare a change patrol link, if applicable

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Method getSlotDiffRenderers has 26 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    protected function getSlotDiffRenderers() {
        if ( $this->isSlotDiffRenderer ) {
            throw new LogicException( __METHOD__ . ' called in slot diff renderer mode' );
        }

Function loadText has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

    public function loadText() {
        if ( $this->mTextLoaded == 2 ) {
            return $this->loadRevisionData() &&
                ( $this->mOldRevisionRecord === false || $this->mOldContent )
                && $this->mNewContent;

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Method __construct has 6 arguments (exceeds 4 allowed). Consider refactoring.

Open

    public function __construct( $context = null, $old = 0, $new = 0, $rcid = 0,
        $refreshCache = false, $unhide = false

Method addHeader has 5 arguments (exceeds 4 allowed). Consider refactoring.

Open

    public function addHeader( $diff, $otitle, $ntitle, $multi = '', $notice = '' ) {

Avoid too many return statements within this method.

Open

            return false;

Avoid too many return statements within this method.

Open

        return true;

Avoid too many return statements within this method.

Open

                    return $difftext;

Avoid too many return statements within this method.

Open

        return $difftext;

Function getRevisionHeader has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    public function getRevisionHeader( RevisionRecord $rev, $complete = '' ) {
        $lang = $this->getLanguage();
        $user = $this->getUser();
        $revtimestamp = $rev->getTimestamp();
        $timestamp = $lang->userTimeAndDate( $revtimestamp, $user );

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Similar blocks of code found in 2 locations. Consider refactoring.

Open

            if ( $hasPrevious ) {
                $prevlinkQuery = [ 'diff' => 'prev', 'oldid' => $this->mOldid ] + $query;
                $prevlink = $this->linkRenderer->makeKnownLink(
                    $this->mOldPage,
                    $this->msg( 'previousdiff' )->text(),

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Similar blocks of code found in 2 locations. Consider refactoring.

Open

        if ( $samePage && $this->mNewPage && !$this->mNewRevisionRecord->isCurrent() ) {
            $nextlinkQuery = [ 'diff' => 'next', 'oldid' => $this->mNewid ] + $query;
            $nextlink = $this->linkRenderer->makeKnownLink(
                $this->mNewPage,
                $this->msg( 'nextdiff' )->text(),

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