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1<?php
2/**
3 * Copyright © 2016 Wikimedia Foundation and contributors
4 *
5 * @license GPL-2.0-or-later
6 * @file
7 */
8
9namespace MediaWiki\Api;
10
11use MediaWiki\Auth\AuthenticationResponse;
12use MediaWiki\Auth\AuthManager;
13use MediaWiki\Utils\UrlUtils;
14
15/**
16 * Link an account with AuthManager
17 *
18 * @ingroup API
19 */
20class ApiLinkAccount extends ApiBase {
21
22    private AuthManager $authManager;
23    private UrlUtils $urlUtils;
24
25    public function __construct(
26        ApiMain $main,
27        string $action,
28        AuthManager $authManager,
29        UrlUtils $urlUtils
30    ) {
31        parent::__construct( $main, $action, 'link' );
32        $this->authManager = $authManager;
33        $this->urlUtils = $urlUtils;
34    }
35
36    /** @inheritDoc */
37    public function getFinalDescription() {
38        // A bit of a hack to append 'api-help-authmanager-general-usage'
39        $msgs = parent::getFinalDescription();
40        $msgs[] = $this->msg( 'api-help-authmanager-general-usage',
41            $this->getModulePrefix(),
42            $this->getModuleName(),
43            $this->getModulePath(),
44            AuthManager::ACTION_LINK,
45            $this->needsToken(),
46        );
47        return $msgs;
48    }
49
50    public function execute() {
51        if ( !$this->getUser()->isNamed() ) {
52            $this->dieWithError( 'apierror-mustbeloggedin-linkaccounts', 'notloggedin' );
53        }
54
55        $params = $this->extractRequestParams();
56
57        $this->requireAtLeastOneParameter( $params, 'continue', 'returnurl' );
58
59        if ( $params['returnurl'] !== null ) {
60            $bits = $this->urlUtils->parse( $params['returnurl'] );
61            if ( !$bits || $bits['scheme'] === '' ) {
62                $encParamName = $this->encodeParamName( 'returnurl' );
63                $this->dieWithError(
64                    [ 'apierror-badurl', $encParamName, wfEscapeWikiText( $params['returnurl'] ) ],
65                    "badurl_{$encParamName}"
66                );
67            }
68        }
69
70        $helper = new ApiAuthManagerHelper( $this, $this->authManager );
71
72        // Check security-sensitive operation status
73        $helper->securitySensitiveOperation( 'LinkAccounts' );
74
75        // Make sure it's possible to link accounts
76        if ( !$this->authManager->canLinkAccounts() ) {
77            $this->getResult()->addValue( null, 'linkaccount', $helper->formatAuthenticationResponse(
78                AuthenticationResponse::newFail( $this->msg( 'userlogin-cannot-' . AuthManager::ACTION_LINK ) )
79            ) );
80            return;
81        }
82
83        // Perform the link step
84        if ( $params['continue'] ) {
85            $reqs = $helper->loadAuthenticationRequests( AuthManager::ACTION_LINK_CONTINUE );
86            $res = $this->authManager->continueAccountLink( $reqs );
87        } else {
88            $reqs = $helper->loadAuthenticationRequests( AuthManager::ACTION_LINK );
89            $res = $this->authManager->beginAccountLink( $this->getUser(), $reqs, $params['returnurl'] );
90        }
91
92        $this->getResult()->addValue( null, 'linkaccount',
93            $helper->formatAuthenticationResponse( $res ) );
94    }
95
96    /** @inheritDoc */
97    public function isReadMode() {
98        return false;
99    }
100
101    /** @inheritDoc */
102    public function isWriteMode() {
103        return true;
104    }
105
106    /** @inheritDoc */
107    public function needsToken() {
108        return 'csrf';
109    }
110
111    /** @inheritDoc */
112    public function getAllowedParams() {
113        return ApiAuthManagerHelper::getStandardParams( AuthManager::ACTION_LINK,
114            'requests', 'messageformat', 'mergerequestfields', 'returnurl', 'continue'
115        );
116    }
117
118    /** @inheritDoc */
119    public function dynamicParameterDocumentation() {
120        return [ 'api-help-authmanagerhelper-additional-params', AuthManager::ACTION_LINK ];
121    }
122
123    /** @inheritDoc */
124    protected function getExamplesMessages() {
125        return [
126            'action=linkaccount&provider=Example&linkreturnurl=http://example.org/&linktoken=123ABC'
127                => 'apihelp-linkaccount-example-link',
128        ];
129    }
130
131    /** @inheritDoc */
132    public function getHelpUrls() {
133        return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Linkaccount';
134    }
135}
136
137/** @deprecated class alias since 1.43 */
138class_alias( ApiLinkAccount::class, 'ApiLinkAccount' );