Completed
Push — devel ( cac778...cbc34f )
by Philippe
26s queued 13s
created

AuthorizeController::actionAuthorize()   F

Complexity

Conditions 16
Paths 240

Size

Total Lines 98

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 33
CRAP Score 22.7678

Importance

Changes 0
Metric Value
dl 0
loc 98
ccs 33
cts 47
cp 0.702
rs 3.4303
c 0
b 0
f 0
cc 16
nc 240
nop 0
crap 22.7678

How to fix   Long Method    Complexity   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

1
<?php
2
/**
3
 * DefaultController.php
4
 *
5
 * PHP version 5.6+
6
 *
7
 * @author pgaultier
8
 * @copyright 2010-2017 Philippe Gaultier
9
 * @license http://www.sweelix.net/license license
10
 * @version 1.2.0
11
 * @link http://www.sweelix.net
12
 * @package sweelix\oauth2\server\controllers
13
 */
14
15
namespace sweelix\oauth2\server\controllers;
16
17
use OAuth2\Request as OAuth2Request;
18
use OAuth2\Response as OAuth2Response;
19
use sweelix\oauth2\server\models\Client;
20
use sweelix\oauth2\server\models\Scope;
21
use sweelix\oauth2\server\Module;
22
use yii\filters\AccessControl;
23
use yii\web\Controller;
24
use yii\web\Response;
25
use Yii;
26
27
/**
28
 * Oauth2 main controller
29
 *
30
 * @author pgaultier
31
 * @copyright 2010-2017 Philippe Gaultier
32
 * @license http://www.sweelix.net/license license
33
 * @version 1.2.0
34
 * @link http://www.sweelix.net
35
 * @package sweelix\oauth2\server\controllers
36
 * @since 1.0.0
37
 */
38
class AuthorizeController extends Controller
39
{
40
    /**
41
     * @var string
42
     */
43
    private $userClass;
44 10
45
    /**
46 10
     * @inheritdoc
47
     */
48 10
    public function init()
49
    {
50
        $module = Module::getInstance();
51
52 10
        if ($module->overrideLayout !== null) {
0 ignored issues
show
Bug introduced by
The property overrideLayout does not seem to exist. Did you mean layout?

An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name.

If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading.

Loading history...
53
            $this->layout = $module->overrideLayout;
0 ignored issues
show
Bug introduced by
The property overrideLayout does not seem to exist. Did you mean layout?

An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name.

If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading.

Loading history...
54
        }
55
56 10
        if ($module->overrideViewPath !== null) {
0 ignored issues
show
Bug introduced by
The property overrideViewPath does not seem to exist. Did you mean viewPath?

An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name.

If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading.

Loading history...
57 10
            $this->setViewPath($module->overrideViewPath);
0 ignored issues
show
Bug introduced by
The property overrideViewPath does not seem to exist. Did you mean viewPath?

An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name.

If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading.

Loading history...
58
        }
59
60
        parent::init();
61
    }
62 10
63
    /**
64 10
     * @inheritdoc
65 10
     */
66 10
    public function behaviors()
67 10
    {
68
        $behaviors = parent::behaviors();
69
        $behaviors['access'] = [
70 10
            'class' => AccessControl::class,
71 10
            'only' => ['authorize'],
72 10
            'rules' => [
73 10
                [
74 10
                    'allow' => true,
75
                    'actions' => ['authorize'],
76 10
                    'roles' => ['@'],
77
                ],
78
            ],
79
        ];
80
        return $behaviors;
81
    }
82
83
    /**
84 9
     * Send back an oauth token
85
     *
86 9
     * @return Response
87 9
     * @throws \yii\base\InvalidConfigException
88
     * @since 1.0.0
89 9
     */
90 9
    public function actionIndex()
91 9
    {
92 9
        Yii::$app->response->headers->add('Content-Security-Policy', 'frame-ancestors \'none\';');
93
94
        $status = false;
95 9
96 5
        /** @var \OAuth2\Server $oauthServer */
97 4
        $oauthServer = Yii::createObject('OAuth2\Server');
98
99 4
        /** @var \OAuth2\Request $oauthRequest */
100 4
        $oauthRequest = OAuth2Request::createFromGlobals();
101 4
102 4
        $oauthResponse = new OAuth2Response();
103 2
104
        /** @var string $grantType */
105 2
        $grantType = Yii::$app->request->getQueryParam('response_type');
106 4
        $promptValues = key_exists('prompt', $oauthRequest->query) ? explode(" ", $oauthRequest->query['prompt']) : [];
107 1
108 1
        switch ($grantType) {
109
            case 'code':
110 5
                // Authorization Code
111
                if (Module::getInstance()->allowAuthorizationCode === true) {
112 4
                    /** @var \Oauth2\GrantType\AuthorizationCode $oauthGrantType */
113 4
                    $oauthGrantType = Yii::createObject('OAuth2\GrantType\AuthorizationCode');
114 4
                    $oauthServer->addGrantType($oauthGrantType);
115 4
                    $status = $oauthServer->validateAuthorizeRequest($oauthRequest, $oauthResponse);
116 2
                } else {
117
                    $status = false;
118 2
                    $oauthResponse->setError(400, 'invalid_grant', 'Authorization code grant is not supported');
119 4
                }
120
                break;
121
            case 'token':
122 9
                // Implicit
123 4
                $status = $oauthServer->validateAuthorizeRequest($oauthRequest, $oauthResponse);
124 4
                break;
125 4
        }
126 4
127 4
        if ($status === false) {
128 4
            // handle request validation error
129 4
            $this->handleErrorResponse($oauthResponse);
130 1
        } else {
131
            Yii::$app->session->set('oauthServer', $oauthServer);
132 4
            if (isset($oauthRequest) === true) {
133
                Yii::$app->session->set('oauthRequest', $oauthRequest);
134 5
            }
135
136 9
            if (Yii::$app->user->isGuest === true || in_array('login', $promptValues, true)) {
137
                /** @var \Oauth2\Controller\AuthorizeController $authController */
138
                $authController = $oauthServer->getAuthorizeController();
139
140
                //TODO: check if the user should get logged out
141
                if (in_array('none', $promptValues, true)) {
142
                    $response = new OAuth2Response();
143
                    $response->setRedirect(302, $authController->getRedirectUri(), $authController->getState(),
144 5
                        'login_required',
145
                        'Authentication Request cannot be completed without user authentication.',
146 5
                        NULL
147
                    );
148 5
                    $this->handleErrorResponse($response);
149
                } else {
150 5
                    return $this->redirect(['login']);
151 1
                }
152 1
            } else {
153 1
                return $this->redirect(['authorize']);
154 1
            }
155 1
        }
156
    }
157
158 4
    /**
159 4
     * Display login page
160
     *
161 4
     * @return Response | string
162
     * @throws \yii\base\InvalidConfigException
163 4
     * @since 1.0.0
164 4
     */
165 4
    public function actionLogin()
166 4
    {
167
        Yii::$app->response->headers->add('Content-Security-Policy', 'frame-ancestors \'none\';');
168 4
169 4
        /* @var \Oauth2\Server $oauthServer */
170 4
        $oauthServer = Yii::$app->session->get('oauthServer');
171 4
172 2
        if ($oauthServer === null) {
173
            $response = new OAuth2Response();
174 4
            $response->setError(400, 'invalid_request', 'The request was not performed as expected.');
175 4
            $this->handleErrorResponse($response);
176 4
        }
177
178 4
        $response = null;
179 4
        $oauthRequest = Yii::$app->session->get('oauthRequest');
180 4
        $promptValues = $oauthRequest && key_exists('prompt', $oauthRequest->query) ? explode(" ", $oauthRequest->query['prompt']) : [];
181 4
        /* @var \sweelix\oauth2\server\forms\User $userForm */
182 4
        $userForm = Yii::createObject('sweelix\oauth2\server\forms\User');
183 4
184
        if (Yii::$app->request->isPost === true) {
185
            //TODO: handle case when user decline the grants
186
            $userForm->load(Yii::$app->request->bodyParams);
187
            if ($userForm->validate() === true) {
188
                $userClass = $this->getUserClass();
189
                /* @var \sweelix\oauth2\server\interfaces\UserModelInterface $realUser */
190
                $realUser = $userClass::findByUsernameAndPassword($userForm->username, $userForm->password);
191 4
                if ($realUser !== null) {
192
                    Yii::$app->user->login($realUser, Module::getInstance()->loginDuration);
193 4
                    $response = $this->redirect(['authorize']);
194 4
                } else {
195
                    $userForm->addError('username');
196 4
                }
197
            }
198
        }
199
        if ($response === null) {
200
            if(in_array('none', $promptValues, true)) {
201
                /** @var \Oauth2\Controller\AuthorizeController $authController */
202 1
                $authController = $oauthServer->getAuthorizeController();
203 4
                $oauthResponse = $oauthServer->getResponse();
204 4
                $oauthResponse->setRedirect(302, $authController->getRedirectUri(), $authController->getState(),
205
                    'login_required',
206 4
                    'Authentication Request cannot be completed without user authentication.',
207
                    null
208 1
                );
209 1
                $this->handleErrorResponse($oauthResponse);
0 ignored issues
show
Compatibility introduced by
$oauthResponse of type object<OAuth2\ResponseInterface> is not a sub-type of object<OAuth2\Response>. It seems like you assume a concrete implementation of the interface OAuth2\ResponseInterface to be always present.

This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.

Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.

Loading history...
210 1
            }
211
            // force empty password
212 1
            $userForm->password = '';
213 1
            $response = $this->render('login', [
0 ignored issues
show
Bug Compatibility introduced by
The expression $this->render('login', a...('user' => $userForm)); of type string adds the type string to the return on line 217 which is incompatible with the return type documented by sweelix\oauth2\server\co...Controller::actionLogin of type yii\web\Response.
Loading history...
214 1
                'user' => $userForm,
215 1
            ]);
216
        }
217
        return $response;
218
    }
219 1
220
    /**
221
     * Display authorize page
222
     *
223 4
     * @return Response | string
224 4
     * @throws \yii\base\UnknownClassException
225 4
     * @since 1.0.0
226
     */
227
    public function actionAuthorize()
228
    {
229
        Yii::$app->response->headers->add('Content-Security-Policy', 'frame-ancestors \'none\';');
230
231
        /* @var \Oauth2\Server $oauthServer */
232
        $oauthServer = Yii::$app->session->get('oauthServer');
233
234
        if ($oauthServer === NULL) {
235
            $response = new OAuth2Response();
236
            $response->setError(400, 'invalid_request', 'The request was not performed as expected.');
237
            $this->handleErrorResponse($response);
238
        }
239
240 4
        /** @var \OAuth2\Controller\AuthorizeController $authController */
241 4
        $authController = $oauthServer->getAuthorizeController();
242 4
        $client = Client::findOne($authController->getClientId());
243 4
        $oauthRequest = Yii::$app->session->get('oauthRequest');
244
        $promptValues = $oauthRequest && key_exists('prompt', $oauthRequest->query) ? explode(" ", $oauthRequest->query['prompt']) : [];
245
246 4
        // user has already granted permission
247 2
        if ($client->hasUser(Yii::$app->user->id) === true && !in_array('consent', $promptValues, true)) {
248 2
            //TODO: check if all consents should be removed
249
            /** @var \OAuth2\Response $oauthResponse */
250 2
            $oauthResponse = new OAuth2Response();
251 2
            $oauthResponse = $oauthServer->handleAuthorizeRequest($oauthRequest, $oauthResponse, true, Yii::$app->user->id);
252 2
253
            if ($oauthResponse->getParameter('error') === NULL) {
254
                Yii::$app->session->remove('oauthServer');
255
                Yii::$app->session->remove('oauthRequest');
256 4
257 4
                return $this->redirect($oauthResponse->getHttpHeader('Location'));
258 4
            } else {
259 4
                $this->handleErrorResponse($oauthResponse);
0 ignored issues
show
Compatibility introduced by
$oauthResponse of type object<OAuth2\ResponseInterface> is not a sub-type of object<OAuth2\Response>. It seems like you assume a concrete implementation of the interface OAuth2\ResponseInterface to be always present.

This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.

Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.

Loading history...
260 4
            }
261
        } else {
262
            // perform regular authorization
263
            if (in_array('none', $promptValues, true)) {
264 4
                $oauthResponse = $oauthServer->getResponse();
265
                $oauthResponse->setRedirect(302, $authController->getRedirectUri(), $authController->getState(),
266
                    'consent_required',
267
                    'Authentication Request cannot be completed without End-User consent.',
268
                    NULL
269 4
                );
270 4
                $this->handleErrorResponse($oauthResponse);
0 ignored issues
show
Compatibility introduced by
$oauthResponse of type object<OAuth2\ResponseInterface> is not a sub-type of object<OAuth2\Response>. It seems like you assume a concrete implementation of the interface OAuth2\ResponseInterface to be always present.

This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.

Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.

Loading history...
271 4
            }
272 4
273
            $additionalScopes = $authController->getScope();
274
            $requestedScopes = [];
275
            if (empty($additionalScopes) === false) {
276
                $additionalScopes = explode(' ', $additionalScopes);
277
                foreach ($additionalScopes as $scope) {
278
                    $dbScope = Scope::findOne($scope);
279
                    if ($dbScope !== NULL) {
280 6
                        $requestedScopes[] = $dbScope;
281
                    } else {
282 6
                        $response = new OAuth2Response();
283 6
                        $response->setError(400, 'invalid_scope', 'Scope ' . $scope . ' does not exist.');
284 6
                        $this->handleErrorResponse($response);
285 6
                    }
286 6
                }
287 6
            }
288
            if (Yii::$app->request->isPost === true) {
289
                $accept = Yii::$app->request->getBodyParam('accept');
290
                /** @var \Oauth2\Request $oauthRequest */
291
                $oauthRequest = Yii::$app->session->get('oauthRequest');
292
                /** @var \Oauth2\Response $oauthResponse */
293
                $oauthResponse = new OAuth2Response();
294
295
                if ($accept !== NULL) {
296
                    // authorize
297
                    $oauthResponse = $oauthServer->handleAuthorizeRequest($oauthRequest, $oauthResponse, true, Yii::$app->user->id);
298
                    // check if user has not already granted the client
299 4
                    if ($client->hasUser(Yii::$app->user->id) === false) {
300
                        $client->addUser(Yii::$app->user->id);
301 4
                    }
302 4
                } else {
303 4
                    // decline
304 4
                    $oauthResponse = $oauthServer->handleAuthorizeRequest($oauthRequest, $oauthResponse, false, Yii::$app->user->id);
305 4
                    $client->removeUser(Yii::$app->user->id);
306
                }
307
308
                Yii::$app->session->remove('oauthServer');
309
                Yii::$app->session->remove('oauthRequest');
310
                $error = $oauthResponse->getParameters();
0 ignored issues
show
Bug introduced by
The method getParameters() does not exist on OAuth2\ResponseInterface. Did you maybe mean getParameter()?

This check marks calls to methods that do not seem to exist on an object.

This is most likely the result of a method being renamed without all references to it being renamed likewise.

Loading history...
311
                $redirect = $oauthResponse->getHttpHeader('Location');
312
                if ((empty($error) === false) && ($redirect === NULL)) {
313
                    Yii::$app->session->setFlash('error', $error, false);
314
                    return $this->redirect(['error']);
315
                } else {
316
                    return $this->redirect($redirect);
317
                }
318
            }
319
        }
320
        return $this->render('authorize', [
0 ignored issues
show
Bug Best Practice introduced by
The return type of return $this->render('au... => $requestedScopes)); (string) is incompatible with the return type documented by sweelix\oauth2\server\co...roller::actionAuthorize of type yii\web\Response.

If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design.

Let’s take a look at an example:

class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}

Our function my_function expects a Post object, and outputs the author of the post. The base class Post returns a simple string and outputting a simple string will work just fine. However, the child class BlogPost which is a sub-type of Post instead decided to return an object, and is therefore violating the SOLID principles. If a BlogPost were passed to my_function, PHP would not complain, but ultimately fail when executing the strtoupper call in its body.

Loading history...
321
            'client'          => $client,
322
            'requestedScopes' => $requestedScopes,
0 ignored issues
show
Bug introduced by
The variable $requestedScopes does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
323
        ]);
324
    }
325
326
    /**
327
     * Display an error page
328
     *
329
     * @return Response | string
330
     * @since 1.0.0
331
     */
332
    public function actionError()
333
    {
334
        Yii::$app->response->headers->add('Content-Security-Policy', 'frame-ancestors \'none\';');
335
336
        $errorData = Yii::$app->session->getFlash('error');
337
        $code = isset($errorData['code']) && is_numeric($errorData['code']) ? $errorData['code'] : 400;
338
        Yii::$app->response->setStatusCode($code);
339
340
        return $this->render('error', [
341
            'type' => (isset($errorData['error']) ? $errorData['error'] : null),
342
            'description' => (isset($errorData['error_description']) ? $errorData['error_description'] : null),
343
        ]);
344
    }
345
346
    /**
347
     * Handles OAuth errors by either displaying an error page or redirecting to the callback
348
     *
349
     * @param \Oauth2\Response $response
350
     * @return Response | null
351
     */
352
    public function handleErrorResponse($response)
353
    {
354
        if ($response->getParameter('error') !== null) {
355
            Yii::$app->session->remove('oauthServer');
356
            Yii::$app->session->remove('oauthRequest');
357
358
            if ($response->isRedirection()) {
359
                return $this->redirect($response->getHttpHeader('Location'));
360
            } else {
361
                $code = $response->getStatusCode();
362
                $error = $response->getParameter('error', 'Unkown error');
363
                $description = $response->getParameter('error_description', 'Please check your request.');
364
                Yii::$app->session->setFlash('error', [
365
                    'code' => $code,
366
                    'error' => $error,
367
                    'error_description' => $description
368
                    ], false
369
                );
370
                return $this->redirect(['error']);
371
            }
372
        }
373
374
        return null;
375
    }
376
377
    /**
378
     * @return string classname for selected interface
379
     * @throws \yii\base\InvalidConfigException
380
     * @since 1.0.0
381
     */
382
    public function getUserClass()
383
    {
384
        if ($this->userClass === null) {
385
            $scope = Yii::createObject('sweelix\oauth2\server\interfaces\UserModelInterface');
386
            $this->userClass = get_class($scope);
387
        }
388
        return $this->userClass;
389
    }
390
}
391