SpecialChangeCredentials.php

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<?php
 
use MediaWiki\Auth\AuthenticationRequest;
use MediaWiki\Auth\AuthenticationResponse;
use MediaWiki\Auth\AuthManager;
use MediaWiki\Auth\PasswordAuthenticationRequest;
use MediaWiki\Html\Html;
use MediaWiki\MainConfigNames;
use MediaWiki\Session\SessionManager;
use MediaWiki\Title\Title;
 
class SpecialChangeCredentials extends AuthManagerSpecialPage {
    protected static $allowedActions = [ AuthManager::ACTION_CHANGE ];
 
    protected static $messagePrefix = 'changecredentials';
 
    protected static $loadUserData = true;
 
    public function __construct( AuthManager $authManager ) {
        parent::__construct( 'ChangeCredentials', 'editmyprivateinfo' );
        $this->setAuthManager( $authManager );
    }
 
    protected function getGroupName() {
        return 'users';
    }
 
    public function isListed() {
        $this->loadAuth( '' );
        return (bool)$this->authRequests;
    }
 
    public function doesWrites() {
        return true;
    }
 
    protected function getDefaultAction( $subPage ) {
        return AuthManager::ACTION_CHANGE;
    }
 
    protected function getPreservedParams( $withToken = false ) {
        $request = $this->getRequest();
        $params = parent::getPreservedParams( $withToken );
        $params += [
            'returnto' => $request->getVal( 'returnto' ),
            'returntoquery' => $request->getVal( 'returntoquery' ),
        ];
        return $params;
    }
 
    public function execute( $subPage ) {
        $this->setHeaders();
        $this->outputHeader();
 
        $this->loadAuth( $subPage );
 
        if ( !$subPage ) {
            $this->showSubpageList();
            return;
        }
 
        if ( !$this->authRequests ) {
            // messages used: changecredentials-invalidsubpage, removecredentials-invalidsubpage
            $this->showSubpageList( $this->msg( static::$messagePrefix . '-invalidsubpage', $subPage ) );
            return;
        }
 
        $out = $this->getOutput();
        $out->addModules( 'mediawiki.special.changecredentials' );
        $out->addBacklinkSubtitle( $this->getPageTitle() );
        $status = $this->trySubmit();
 
        if ( $status === false || !$status->isOK() ) {
            $this->displayForm( $status );
            return;
        }
 
        $response = $status->getValue();
 
        switch ( $response->status ) {
            case AuthenticationResponse::PASS:
                $this->success();
                break;
            case AuthenticationResponse::FAIL:
                $this->displayForm( Status::newFatal( $response->message ) );
                break;
            default:
                throw new LogicException( 'invalid AuthenticationResponse' );
        }
    }
 
    protected function loadAuth( $subPage, $authAction = null, $reset = false ) {
        parent::loadAuth( $subPage, $authAction );
        if ( $subPage ) {
            $foundReqs = [];
            foreach ( $this->authRequests as $req ) {
                if ( $req->getUniqueId() === $subPage ) {
                    $foundReqs[] = $req;
                }
            }
            if ( count( $foundReqs ) > 1 ) {
                throw new LogicException( 'Multiple AuthenticationRequest objects with same ID!' );
            }
            $this->authRequests = $foundReqs;
        }
    }
 
    public function onAuthChangeFormFields(
        array $requests, array $fieldInfo, array &$formDescriptor, $action
    ) {
        parent::onAuthChangeFormFields( $requests, $fieldInfo, $formDescriptor, $action );
 
        // Add some UI flair for password changes, the most common use case for this page.
        if ( AuthenticationRequest::getRequestByClass( $this->authRequests,
            PasswordAuthenticationRequest::class )
        ) {
            $formDescriptor = self::mergeDefaultFormDescriptor( $fieldInfo, $formDescriptor, [
                'password' => [
                    'autocomplete' => 'new-password',
                    'placeholder-message' => 'createacct-yourpassword-ph',
                    'help-message' => 'createacct-useuniquepass',
                ],
                'retype' => [
                    'autocomplete' => 'new-password',
                    'placeholder-message' => 'createacct-yourpasswordagain-ph',
                ],
                // T263927 - the Chromium password form guide recommends always having a username field
                'username' => [
                    'type' => 'text',
                    'baseField' => 'password',
                    'autocomplete' => 'username',
                    'nodata' => true,
                    'readonly' => true,
                    'cssclass' => 'mw-htmlform-hidden-field',
                    'label-message' => 'userlogin-yourname',
                    'placeholder-message' => 'userlogin-yourname-ph',
                ],
            ] );
        }
    }
 
    protected function getAuthFormDescriptor( $requests, $action ) {
        if ( !static::$loadUserData ) {
            return [];
        } else {
            $descriptor = parent::getAuthFormDescriptor( $requests, $action );
 
            $any = false;
            foreach ( $descriptor as &$field ) {
                if ( $field['type'] === 'password' && $field['name'] !== 'retype' ) {
                    $any = true;
                    if ( isset( $field['cssclass'] ) ) {
                        $field['cssclass'] .= ' mw-changecredentials-validate-password';
                    } else {
                        $field['cssclass'] = 'mw-changecredentials-validate-password';
                    }
                }
            }
 
            if ( $any ) {
                $this->getOutput()->addModules( 'mediawiki.misc-authed-ooui' );
            }
 
            return $descriptor;
        }
    }
 
    protected function getAuthForm( array $requests, $action ) {
        $form = parent::getAuthForm( $requests, $action );
        $req = reset( $requests );
        $info = $req->describeCredentials();
 
        $form->addPreHtml(
            Html::openElement( 'dl' )
            . Html::element( 'dt', [], $this->msg( 'credentialsform-provider' )->text() )
            . Html::element( 'dd', [], $info['provider']->text() )
            . Html::element( 'dt', [], $this->msg( 'credentialsform-account' )->text() )
            . Html::element( 'dd', [], $info['account']->text() )
            . Html::closeElement( 'dl' )
        );
 
        // messages used: changecredentials-submit removecredentials-submit
        $form->setSubmitTextMsg( static::$messagePrefix . '-submit' );
        $form->showCancel()->setCancelTarget( $this->getReturnUrl() ?: Title::newMainPage() );
        $form->setSubmitID( 'change_credentials_submit' );
        return $form;
    }
 
    protected function needsSubmitButton( array $requests ) {
        // Change/remove forms show are built from a single AuthenticationRequest and do not allow
        // for redirect flow; they always need a submit button.
        return true;
    }
 
    public function handleFormSubmit( $data ) {
        // remove requests do not accept user input
        $requests = $this->authRequests;
        if ( static::$loadUserData ) {
            $requests = AuthenticationRequest::loadRequestsFromSubmission( $this->authRequests, $data );
        }
 
        $response = $this->performAuthenticationStep( $this->authAction, $requests );
 
        // we can't handle FAIL or similar as failure here since it might require changing the form
        return Status::newGood( $response );
    }
 
    protected function showSubpageList( $error = null ) {
        $out = $this->getOutput();
 
        if ( $error ) {
            $out->addHTML( $error->parse() );
        }
 
        $groupedRequests = [];
        foreach ( $this->authRequests as $req ) {
            $info = $req->describeCredentials();
            $groupedRequests[$info['provider']->text()][] = $req;
        }
 
        $linkRenderer = $this->getLinkRenderer();
        $out->addHTML( Html::openElement( 'dl' ) );
        foreach ( $groupedRequests as $group => $members ) {
            $out->addHTML( Html::element( 'dt', [], $group ) );
            foreach ( $members as $req ) {
                $info = $req->describeCredentials();
                $out->addHTML( Html::rawElement( 'dd', [],
                    $linkRenderer->makeLink(
                        $this->getPageTitle( $req->getUniqueId() ),
                        $info['account']->text()
                    )
                ) );
            }
        }
        $out->addHTML( Html::closeElement( 'dl' ) );
    }
 
    protected function success() {
        $session = $this->getRequest()->getSession();
        $user = $this->getUser();
        $out = $this->getOutput();
        $returnUrl = $this->getReturnUrl();
 
        // change user token and update the session
        SessionManager::singleton()->invalidateSessionsForUser( $user );
        $session->setUser( $user );
        $session->resetId();
 
        if ( $returnUrl ) {
            $out->redirect( $returnUrl );
        } else {
            // messages used: changecredentials-success removecredentials-success
            $out->addHTML(
                Html::successBox(
                    $out->msg( static::$messagePrefix . '-success' )->parse()
                )
            );
            $out->returnToMain();
        }
    }
 
    protected function getReturnUrl() {
        $request = $this->getRequest();
        $returnTo = $request->getText( 'returnto' );
        $returnToQuery = $request->getText( 'returntoquery', '' );
 
        if ( !$returnTo ) {
            return null;
        }
 
        $title = Title::newFromText( $returnTo );
        return $title->getFullUrlForRedirect( $returnToQuery );
    }
 
    protected function getRequestBlacklist() {
        return $this->getConfig()->get( MainConfigNames::ChangeCredentialsBlacklist );
    }
}