SpecialBotPasswords.php

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<?php
class SpecialBotPasswords extends FormSpecialPage {

    private $userId = 0;

    private $botPassword = null;

    private $operation = null;

    private $password = null;

    public function __construct() {
        parent::__construct( 'BotPasswords', 'editmyprivateinfo' );
    }

    public function isListed() {
        return $this->getConfig()->get( 'EnableBotPasswords' );
    }

    function execute( $par ) {
        $this->getOutput()->disallowUserJs();
        $this->requireLogin();

        $par = trim( $par );
        if ( strlen( $par ) === 0 ) {
            $par = null;
        } elseif ( strlen( $par ) > BotPassword::APPID_MAXLENGTH ) {
            throw new ErrorPageError( 'botpasswords', 'botpasswords-bad-appid',
                [ htmlspecialchars( $par ) ] );
        }

        parent::execute( $par );
    }

    protected function checkExecutePermissions( User $user ) {
        parent::checkExecutePermissions( $user );

        if ( !$this->getConfig()->get( 'EnableBotPasswords' ) ) {
            throw new ErrorPageError( 'botpasswords', 'botpasswords-disabled' );
        }

        $this->userId = CentralIdLookup::factory()->centralIdFromLocalUser( $this->getUser() );
        if ( !$this->userId ) {
            throw new ErrorPageError( 'botpasswords', 'botpasswords-no-central-id' );
        }
    }

    protected function getFormFields() {
        $fields = [];

        if ( $this->par !== null ) {
            $this->botPassword = BotPassword::newFromCentralId( $this->userId, $this->par );
            if ( !$this->botPassword ) {
                $this->botPassword = BotPassword::newUnsaved( [
                    'centralId' => $this->userId,
                    'appId' => $this->par,
                ] );
            }

            $sep = BotPassword::getSeparator();
            $fields[] = [
                'type' => 'info',
                'label-message' => 'username',
                'default' => $this->getUser()->getName() . $sep . $this->par
            ];

            if ( $this->botPassword->isSaved() ) {
                $fields['resetPassword'] = [
                    'type' => 'check',
                    'label-message' => 'botpasswords-label-resetpassword',
                ];
            }

            $lang = $this->getLanguage();
            $showGrants = MWGrants::getValidGrants();
            $fields['grants'] = [
                'type' => 'checkmatrix',
                'label-message' => 'botpasswords-label-grants',
                'help-message' => 'botpasswords-help-grants',
                'columns' => [
                    $this->msg( 'botpasswords-label-grants-column' )->escaped() => 'grant'
                ],
                'rows' => array_combine(
                    array_map( 'MWGrants::getGrantsLink', $showGrants ),
                    $showGrants
                ),
                'default' => array_map(
                    function( $g ) {
                        return "grant-$g";
                    },
                    $this->botPassword->getGrants()
                ),
                'tooltips' => array_combine(
                    array_map( 'MWGrants::getGrantsLink', $showGrants ),
                    array_map(
                        function( $rights ) use ( $lang ) {
                            return $lang->semicolonList( array_map( 'User::getRightDescription', $rights ) );
                        },
                        array_intersect_key( MWGrants::getRightsByGrant(), array_flip( $showGrants ) )
                    )
                ),
                'force-options-on' => array_map(
                    function( $g ) {
                        return "grant-$g";
                    },
                    MWGrants::getHiddenGrants()
                ),
            ];

            $fields['restrictions'] = [
                'type' => 'textarea',
                'label-message' => 'botpasswords-label-restrictions',
                'required' => true,
                'default' => $this->botPassword->getRestrictions()->toJson( true ),
                'rows' => 5,
                'validation-callback' => function ( $v ) {
                    try {
                        MWRestrictions::newFromJson( $v );
                        return true;
                    } catch ( InvalidArgumentException $ex ) {
                        return $ex->getMessage();
                    }
                },
            ];

        } else {
            $linkRenderer = $this->getLinkRenderer();
            $dbr = BotPassword::getDB( DB_SLAVE );
            $res = $dbr->select(
                'bot_passwords',
                [ 'bp_app_id' ],
                [ 'bp_user' => $this->userId ],
                __METHOD__
            );
            foreach ( $res as $row ) {
                $fields[] = [
                    'section' => 'existing',
                    'type' => 'info',
                    'raw' => true,
                    'default' => $linkRenderer->makeKnownLink(
                        $this->getPageTitle( $row->bp_app_id ),
                        $row->bp_app_id
                    ),
                ];
            }

            $fields['appId'] = [
                'section' => 'createnew',
                'type' => 'textwithbutton',
                'label-message' => 'botpasswords-label-appid',
                'buttondefault' => $this->msg( 'botpasswords-label-create' )->text(),
                'buttonflags' => [ 'progressive', 'primary' ],
                'required' => true,
                'size' => BotPassword::APPID_MAXLENGTH,
                'maxlength' => BotPassword::APPID_MAXLENGTH,
                'validation-callback' => function ( $v ) {
                    $v = trim( $v );
                    return $v !== '' && strlen( $v ) <= BotPassword::APPID_MAXLENGTH;
                },
            ];

            $fields[] = [
                'type' => 'hidden',
                'default' => 'new',
                'name' => 'op',
            ];
        }

        return $fields;
    }

    protected function alterForm( HTMLForm $form ) {
        $form->setId( 'mw-botpasswords-form' );
        $form->setTableId( 'mw-botpasswords-table' );
        $form->addPreText( $this->msg( 'botpasswords-summary' )->parseAsBlock() );
        $form->suppressDefaultSubmit();

        if ( $this->par !== null ) {
            if ( $this->botPassword->isSaved() ) {
                $form->setWrapperLegendMsg( 'botpasswords-editexisting' );
                $form->addButton( [
                    'name' => 'op',
                    'value' => 'update',
                    'label-message' => 'botpasswords-label-update',
                    'flags' => [ 'primary', 'progressive' ],
                ] );
                $form->addButton( [
                    'name' => 'op',
                    'value' => 'delete',
                    'label-message' => 'botpasswords-label-delete',
                    'flags' => [ 'destructive' ],
                ] );
            } else {
                $form->setWrapperLegendMsg( 'botpasswords-createnew' );
                $form->addButton( [
                    'name' => 'op',
                    'value' => 'create',
                    'label-message' => 'botpasswords-label-create',
                    'flags' => [ 'primary', 'constructive' ],
                ] );
            }

            $form->addButton( [
                'name' => 'op',
                'value' => 'cancel',
                'label-message' => 'botpasswords-label-cancel'
            ] );
        }
    }

    public function onSubmit( array $data ) {
        $op = $this->getRequest()->getVal( 'op', '' );

        switch ( $op ) {
            case 'new':
                $this->getOutput()->redirect( $this->getPageTitle( $data['appId'] )->getFullURL() );
                return false;

            case 'create':
                $this->operation = 'insert';
                return $this->save( $data );

            case 'update':
                $this->operation = 'update';
                return $this->save( $data );

            case 'delete':
                $this->operation = 'delete';
                $bp = BotPassword::newFromCentralId( $this->userId, $this->par );
                if ( $bp ) {
                    $bp->delete();
                }
                return Status::newGood();

            case 'cancel':
                $this->getOutput()->redirect( $this->getPageTitle()->getFullURL() );
                return false;
        }

        return false;
    }

    private function save( array $data ) {
        $bp = BotPassword::newUnsaved( [
            'centralId' => $this->userId,
            'appId' => $this->par,
            'restrictions' => MWRestrictions::newFromJson( $data['restrictions'] ),
            'grants' => array_merge(
                MWGrants::getHiddenGrants(),
                preg_replace( '/^grant-/', '', $data['grants'] )
            )
        ] );

        if ( $this->operation === 'insert' || !empty( $data['resetPassword'] ) ) {
            $this->password = PasswordFactory::generateRandomPasswordString(
                max( 32, $this->getConfig()->get( 'MinimalPasswordLength' ) )
            );
            $passwordFactory = new PasswordFactory();
            $passwordFactory->init( RequestContext::getMain()->getConfig() );
            $password = $passwordFactory->newFromPlaintext( $this->password );
        } else {
            $password = null;
        }

        if ( $bp->save( $this->operation, $password ) ) {
            return Status::newGood();
        } else {
            // Messages: botpasswords-insert-failed, botpasswords-update-failed
            return Status::newFatal( "botpasswords-{$this->operation}-failed", $this->par );
        }
    }

    public function onSuccess() {
        $out = $this->getOutput();

        $username = $this->getUser()->getName();
        switch ( $this->operation ) {
            case 'insert':
                $out->setPageTitle( $this->msg( 'botpasswords-created-title' )->text() );
                $out->addWikiMsg( 'botpasswords-created-body', $this->par, $username );
                break;

            case 'update':
                $out->setPageTitle( $this->msg( 'botpasswords-updated-title' )->text() );
                $out->addWikiMsg( 'botpasswords-updated-body', $this->par, $username );
                break;

            case 'delete':
                $out->setPageTitle( $this->msg( 'botpasswords-deleted-title' )->text() );
                $out->addWikiMsg( 'botpasswords-deleted-body', $this->par, $username );
                $this->password = null;
                break;
        }

        if ( $this->password !== null ) {
            $sep = BotPassword::getSeparator();
            $out->addWikiMsg(
                'botpasswords-newpassword',
                htmlspecialchars( $username . $sep . $this->par ),
                htmlspecialchars( $this->password )
            );
            $this->password = null;
        }

        $out->addReturnTo( $this->getPageTitle() );
    }

    protected function getGroupName() {
        return 'users';
    }

    protected function getDisplayFormat() {
        return 'ooui';
    }
}