Completed
Push — use-cookies-through-di-contain... ( d4d2db )
by Alexander
11:35
created

User   D

Complexity

Total Complexity 104

Size/Duplication

Total Lines 702
Duplicated Lines 0 %

Coupling/Cohesion

Components 1
Dependencies 8

Test Coverage

Coverage 70.42%

Importance

Changes 0
Metric Value
wmc 104
lcom 1
cbo 8
dl 0
loc 702
ccs 150
cts 213
cp 0.7042
rs 4.4444
c 0
b 0
f 0

26 Methods

Rating   Name   Duplication   Size   Complexity  
A getIsGuest() 0 4 1
A getId() 0 6 2
A setReturnUrl() 0 4 1
A getAuthManager() 0 4 1
A init() 0 11 4
A sendIdentityCookie() 0 11 1
A removeIdentityCookie() 0 4 1
A getAccessChecker() 0 4 2
B loginRequired() 0 19 10
A beforeLogin() 0 11 1
A afterLogin() 0 8 1
B checkRedirectAcceptable() 0 15 6
A getIdentity() 0 13 4
A setIdentity() 0 11 3
A login() 0 17 3
A loginByCookie() 0 15 4
B logout() 0 16 5
A beforeLogout() 0 9 1
A afterLogout() 0 6 1
A renewIdentityCookie() 0 14 4
B can() 0 15 7
C switchIdentity() 0 33 11
A loginByAccessToken() 0 11 3
A getReturnUrl() 0 13 4
F renewAuthStatus() 0 33 17
B getIdentityAndDurationFromCookie() 0 25 6

How to fix   Complexity   

Complex Class

Complex classes like User often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.

Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.

While breaking up the class, it is a good idea to analyze how other classes use User, and based on these observations, apply Extract Interface, too.

1
<?php
2
/**
3
 * @link http://www.yiiframework.com/
4
 * @copyright Copyright (c) 2008 Yii Software LLC
5
 * @license http://www.yiiframework.com/license/
6
 */
7
8
namespace yii\web;
9
10
use Yii;
11
use yii\base\Component;
12
use yii\base\InvalidConfigException;
13
use yii\base\InvalidValueException;
14
use yii\rbac\CheckAccessInterface;
15
16
/**
17
 * User is the class for the `user` application component that manages the user authentication status.
18
 *
19
 * You may use [[isGuest]] to determine whether the current user is a guest or not.
20
 * If the user is a guest, the [[identity]] property would return `null`. Otherwise, it would
21
 * be an instance of [[IdentityInterface]].
22
 *
23
 * You may call various methods to change the user authentication status:
24
 *
25
 * - [[login()]]: sets the specified identity and remembers the authentication status in session and cookie;
26
 * - [[logout()]]: marks the user as a guest and clears the relevant information from session and cookie;
27
 * - [[setIdentity()]]: changes the user identity without touching session or cookie
28
 *   (this is best used in stateless RESTful API implementation).
29
 *
30
 * Note that User only maintains the user authentication status. It does NOT handle how to authenticate
31
 * a user. The logic of how to authenticate a user should be done in the class implementing [[IdentityInterface]].
32
 * You are also required to set [[identityClass]] with the name of this class.
33
 *
34
 * User is configured as an application component in [[\yii\web\Application]] by default.
35
 * You can access that instance via `Yii::$app->user`.
36
 *
37
 * You can modify its configuration by adding an array to your application config under `components`
38
 * as it is shown in the following example:
39
 *
40
 * ```php
41
 * 'user' => [
42
 *     'identityClass' => 'app\models\User', // User must implement the IdentityInterface
43
 *     'enableAutoLogin' => true,
44
 *     // 'loginUrl' => ['user/login'],
45
 *     // ...
46
 * ]
47
 * ```
48
 *
49
 * @property string|int $id The unique identifier for the user. If `null`, it means the user is a guest. This
50
 * property is read-only.
51
 * @property IdentityInterface|null $identity The identity object associated with the currently logged-in
52
 * user. `null` is returned if the user is not logged in (not authenticated).
53
 * @property bool $isGuest Whether the current user is a guest. This property is read-only.
54
 * @property string $returnUrl The URL that the user should be redirected to after login. Note that the type
55
 * of this property differs in getter and setter. See [[getReturnUrl()]] and [[setReturnUrl()]] for details.
56
 *
57
 * @author Qiang Xue <[email protected]>
58
 * @since 2.0
59
 */
60
class User extends Component
61
{
62
    const EVENT_BEFORE_LOGIN = 'beforeLogin';
63
    const EVENT_AFTER_LOGIN = 'afterLogin';
64
    const EVENT_BEFORE_LOGOUT = 'beforeLogout';
65
    const EVENT_AFTER_LOGOUT = 'afterLogout';
66
67
    /**
68
     * @var string the class name of the [[identity]] object.
69
     */
70
    public $identityClass;
71
    /**
72
     * @var bool whether to enable cookie-based login. Defaults to `false`.
73
     * Note that this property will be ignored if [[enableSession]] is `false`.
74
     */
75
    public $enableAutoLogin = false;
76
    /**
77
     * @var bool whether to use session to persist authentication status across multiple requests.
78
     * You set this property to be `false` if your application is stateless, which is often the case
79
     * for RESTful APIs.
80
     */
81
    public $enableSession = true;
82
    /**
83
     * @var string|array the URL for login when [[loginRequired()]] is called.
84
     * If an array is given, [[UrlManager::createUrl()]] will be called to create the corresponding URL.
85
     * The first element of the array should be the route to the login action, and the rest of
86
     * the name-value pairs are GET parameters used to construct the login URL. For example,
87
     *
88
     * ```php
89
     * ['site/login', 'ref' => 1]
90
     * ```
91
     *
92
     * If this property is `null`, a 403 HTTP exception will be raised when [[loginRequired()]] is called.
93
     */
94
    public $loginUrl = ['site/login'];
95
    /**
96
     * @var array the configuration of the identity cookie. This property is used only when [[enableAutoLogin]] is `true`.
97
     * @see Cookie
98
     */
99
    public $identityCookie = ['name' => '_identity', 'httpOnly' => true];
100
    /**
101
     * @var int the number of seconds in which the user will be logged out automatically if he
102
     * remains inactive. If this property is not set, the user will be logged out after
103
     * the current session expires (c.f. [[Session::timeout]]).
104
     * Note that this will not work if [[enableAutoLogin]] is `true`.
105
     */
106
    public $authTimeout;
107
    /**
108
     * @var CheckAccessInterface The access checker to use for checking access.
109
     * If not set the application auth manager will be used.
110
     * @since 2.0.9
111
     */
112
    public $accessChecker;
113
    /**
114
     * @var int the number of seconds in which the user will be logged out automatically
115
     * regardless of activity.
116
     * Note that this will not work if [[enableAutoLogin]] is `true`.
117
     */
118
    public $absoluteAuthTimeout;
119
    /**
120
     * @var bool whether to automatically renew the identity cookie each time a page is requested.
121
     * This property is effective only when [[enableAutoLogin]] is `true`.
122
     * When this is `false`, the identity cookie will expire after the specified duration since the user
123
     * is initially logged in. When this is `true`, the identity cookie will expire after the specified duration
124
     * since the user visits the site the last time.
125
     * @see enableAutoLogin
126
     */
127
    public $autoRenewCookie = true;
128
    /**
129
     * @var string the session variable name used to store the value of [[id]].
130
     */
131
    public $idParam = '__id';
132
    /**
133
     * @var string the session variable name used to store the value of expiration timestamp of the authenticated state.
134
     * This is used when [[authTimeout]] is set.
135
     */
136
    public $authTimeoutParam = '__expire';
137
    /**
138
     * @var string the session variable name used to store the value of absolute expiration timestamp of the authenticated state.
139
     * This is used when [[absoluteAuthTimeout]] is set.
140
     */
141
    public $absoluteAuthTimeoutParam = '__absoluteExpire';
142
    /**
143
     * @var string the session variable name used to store the value of [[returnUrl]].
144
     */
145
    public $returnUrlParam = '__returnUrl';
146
    /**
147
     * @var array MIME types for which this component should redirect to the [[loginUrl]].
148
     * @since 2.0.8
149
     */
150
    public $acceptableRedirectTypes = ['text/html', 'application/xhtml+xml'];
151
152
    private $_access = [];
153
154
155
    /**
156
     * Initializes the application component.
157
     */
158 50
    public function init()
159
    {
160 50
        parent::init();
161
162 50
        if ($this->identityClass === null) {
163
            throw new InvalidConfigException('User::identityClass must be set.');
164
        }
165 50
        if ($this->enableAutoLogin && !isset($this->identityCookie['name'])) {
166
            throw new InvalidConfigException('User::identityCookie must contain the "name" element.');
167
        }
168 50
    }
169
170
    private $_identity = false;
171
172
    /**
173
     * Returns the identity object associated with the currently logged-in user.
174
     * When [[enableSession]] is true, this method may attempt to read the user's authentication data
175
     * stored in session and reconstruct the corresponding identity object, if it has not done so before.
176
     * @param bool $autoRenew whether to automatically renew authentication status if it has not been done so before.
177
     * This is only useful when [[enableSession]] is true.
178
     * @return IdentityInterface|null the identity object associated with the currently logged-in user.
179
     * `null` is returned if the user is not logged in (not authenticated).
180
     * @see login()
181
     * @see logout()
182
     */
183 44
    public function getIdentity($autoRenew = true)
184
    {
185 44
        if ($this->_identity === false) {
186 11
            if ($this->enableSession && $autoRenew) {
187 10
                $this->_identity = null;
188 10
                $this->renewAuthStatus();
189
            } else {
190 1
                return null;
191
            }
192
        }
193
194 43
        return $this->_identity;
195
    }
196
197
    /**
198
     * Sets the user identity object.
199
     *
200
     * Note that this method does not deal with session or cookie. You should usually use [[switchIdentity()]]
201
     * to change the identity of the current user.
202
     *
203
     * @param IdentityInterface|null $identity the identity object associated with the currently logged user.
204
     * If null, it means the current user will be a guest without any associated identity.
205
     * @throws InvalidValueException if `$identity` object does not implement [[IdentityInterface]].
206
     */
207 43
    public function setIdentity($identity)
208
    {
209 43
        if ($identity instanceof IdentityInterface) {
210 28
            $this->_identity = $identity;
0 ignored issues
show
Documentation Bug introduced by
It seems like $identity of type object<yii\web\IdentityInterface> is incompatible with the declared type boolean of property $_identity.

Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.

Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..

Loading history...
211 28
            $this->_access = [];
212 16
        } elseif ($identity === null) {
213 16
            $this->_identity = null;
214
        } else {
215
            throw new InvalidValueException('The identity object must implement IdentityInterface.');
216
        }
217 43
    }
218
219
    /**
220
     * Logs in a user.
221
     *
222
     * After logging in a user:
223
     * - the user's identity information is obtainable from the [[identity]] property
224
     *
225
     * If [[enableSession]] is `true`:
226
     * - the identity information will be stored in session and be available in the next requests
227
     * - in case of `$duration == 0`: as long as the session remains active or till the user closes the browser
228
     * - in case of `$duration > 0`: as long as the session remains active or as long as the cookie
229
     *   remains valid by it's `$duration` in seconds when [[enableAutoLogin]] is set `true`.
230
     *
231
     * If [[enableSession]] is `false`:
232
     * - the `$duration` parameter will be ignored
233
     *
234
     * @param IdentityInterface $identity the user identity (which should already be authenticated)
235
     * @param int $duration number of seconds that the user can remain in logged-in status, defaults to `0`
236
     * @return bool whether the user is logged in
237
     */
238 11
    public function login(IdentityInterface $identity, $duration = 0)
239
    {
240 11
        if ($this->beforeLogin($identity, false, $duration)) {
241 11
            $this->switchIdentity($identity, $duration);
242 11
            $id = $identity->getId();
243 11
            $ip = Yii::$app->getRequest()->getUserIP();
244 11
            if ($this->enableSession) {
245 11
                $log = "User '$id' logged in from $ip with duration $duration.";
246
            } else {
247
                $log = "User '$id' logged in from $ip. Session not enabled.";
248
            }
249 11
            Yii::info($log, __METHOD__);
250 11
            $this->afterLogin($identity, false, $duration);
251
        }
252
253 11
        return !$this->getIsGuest();
254
    }
255
256
    /**
257
     * Logs in a user by the given access token.
258
     * This method will first authenticate the user by calling [[IdentityInterface::findIdentityByAccessToken()]]
259
     * with the provided access token. If successful, it will call [[login()]] to log in the authenticated user.
260
     * If authentication fails or [[login()]] is unsuccessful, it will return null.
261
     * @param string $token the access token
262
     * @param mixed $type the type of the token. The value of this parameter depends on the implementation.
263
     * For example, [[\yii\filters\auth\HttpBearerAuth]] will set this parameter to be `yii\filters\auth\HttpBearerAuth`.
264
     * @return IdentityInterface|null the identity associated with the given access token. Null is returned if
265
     * the access token is invalid or [[login()]] is unsuccessful.
266
     */
267 13
    public function loginByAccessToken($token, $type = null)
268
    {
269
        /* @var $class IdentityInterface */
270 13
        $class = $this->identityClass;
271 13
        $identity = $class::findIdentityByAccessToken($token, $type);
272 13
        if ($identity && $this->login($identity)) {
273 9
            return $identity;
274
        }
275
276 4
        return null;
277
    }
278
279
    /**
280
     * Logs in a user by cookie.
281
     *
282
     * This method attempts to log in a user using the ID and authKey information
283
     * provided by the [[identityCookie|identity cookie]].
284
     */
285 2
    protected function loginByCookie()
286
    {
287 2
        $data = $this->getIdentityAndDurationFromCookie();
288 2
        if (isset($data['identity'], $data['duration'])) {
289
            $identity = $data['identity'];
290
            $duration = $data['duration'];
291
            if ($this->beforeLogin($identity, true, $duration)) {
292
                $this->switchIdentity($identity, $this->autoRenewCookie ? $duration : 0);
293
                $id = $identity->getId();
294
                $ip = Yii::$app->getRequest()->getUserIP();
295
                Yii::info("User '$id' logged in from $ip via cookie.", __METHOD__);
296
                $this->afterLogin($identity, true, $duration);
297
            }
298
        }
299 2
    }
300
301
    /**
302
     * Logs out the current user.
303
     * This will remove authentication-related session data.
304
     * If `$destroySession` is true, all session data will be removed.
305
     * @param bool $destroySession whether to destroy the whole session. Defaults to true.
306
     * This parameter is ignored if [[enableSession]] is false.
307
     * @return bool whether the user is logged out
308
     */
309
    public function logout($destroySession = true)
310
    {
311
        $identity = $this->getIdentity();
312
        if ($identity !== null && $this->beforeLogout($identity)) {
0 ignored issues
show
Documentation introduced by
$identity is of type boolean, but the function expects a object<yii\web\IdentityInterface>.

It seems like the type of the argument is not accepted by the function/method which you are calling.

In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.

We suggest to add an explicit type cast like in the following example:

function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
Loading history...
313
            $this->switchIdentity(null);
314
            $id = $identity->getId();
0 ignored issues
show
Bug introduced by
The method getId cannot be called on $identity (of type boolean).

Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects.

Loading history...
315
            $ip = Yii::$app->getRequest()->getUserIP();
316
            Yii::info("User '$id' logged out from $ip.", __METHOD__);
317
            if ($destroySession && $this->enableSession) {
318
                Yii::$app->getSession()->destroy();
0 ignored issues
show
Bug introduced by
The method getSession does only exist in yii\web\Application, but not in yii\console\Application.

It seems like the method you are trying to call exists only in some of the possible types.

Let’s take a look at an example:

class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}

Available Fixes

  1. Add an additional type-check:

    /**
     * @param A|B $x
     */
    function someFunction($x)
    {
        $x->foo();
    
        if ($x instanceof B) {
            $x->bar();
        }
    }
    
  2. Only allow a single type to be passed if the variable comes from a parameter:

    function someFunction(B $x) { /** ... */ }
    
Loading history...
319
            }
320
            $this->afterLogout($identity);
0 ignored issues
show
Documentation introduced by
$identity is of type boolean, but the function expects a object<yii\web\IdentityInterface>.

It seems like the type of the argument is not accepted by the function/method which you are calling.

In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.

We suggest to add an explicit type cast like in the following example:

function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
Loading history...
321
        }
322
323
        return $this->getIsGuest();
324
    }
325
326
    /**
327
     * Returns a value indicating whether the user is a guest (not authenticated).
328
     * @return bool whether the current user is a guest.
329
     * @see getIdentity()
330
     */
331 12
    public function getIsGuest()
332
    {
333 12
        return $this->getIdentity() === null;
334
    }
335
336
    /**
337
     * Returns a value that uniquely represents the user.
338
     * @return string|int the unique identifier for the user. If `null`, it means the user is a guest.
339
     * @see getIdentity()
340
     */
341 40
    public function getId()
342
    {
343 40
        $identity = $this->getIdentity();
344
345 40
        return $identity !== null ? $identity->getId() : null;
0 ignored issues
show
Bug introduced by
The method getId cannot be called on $identity (of type boolean).

Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects.

Loading history...
346
    }
347
348
    /**
349
     * Returns the URL that the browser should be redirected to after successful login.
350
     *
351
     * This method reads the return URL from the session. It is usually used by the login action which
352
     * may call this method to redirect the browser to where it goes after successful authentication.
353
     *
354
     * @param string|array $defaultUrl the default return URL in case it was not set previously.
355
     * If this is null and the return URL was not set previously, [[Application::homeUrl]] will be redirected to.
356
     * Please refer to [[setReturnUrl()]] on accepted format of the URL.
357
     * @return string the URL that the user should be redirected to after login.
358
     * @see loginRequired()
359
     */
360 2
    public function getReturnUrl($defaultUrl = null)
361
    {
362 2
        $url = Yii::$app->getSession()->get($this->returnUrlParam, $defaultUrl);
0 ignored issues
show
Bug introduced by
The method getSession does only exist in yii\web\Application, but not in yii\console\Application.

It seems like the method you are trying to call exists only in some of the possible types.

Let’s take a look at an example:

class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}

Available Fixes

  1. Add an additional type-check:

    /**
     * @param A|B $x
     */
    function someFunction($x)
    {
        $x->foo();
    
        if ($x instanceof B) {
            $x->bar();
        }
    }
    
  2. Only allow a single type to be passed if the variable comes from a parameter:

    function someFunction(B $x) { /** ... */ }
    
Loading history...
363 2
        if (is_array($url)) {
364
            if (isset($url[0])) {
365
                return Yii::$app->getUrlManager()->createUrl($url);
366
            }
367
368
            $url = null;
369
        }
370
371 2
        return $url === null ? Yii::$app->getHomeUrl() : $url;
0 ignored issues
show
Bug introduced by
The method getHomeUrl does only exist in yii\web\Application, but not in yii\console\Application.

It seems like the method you are trying to call exists only in some of the possible types.

Let’s take a look at an example:

class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}

Available Fixes

  1. Add an additional type-check:

    /**
     * @param A|B $x
     */
    function someFunction($x)
    {
        $x->foo();
    
        if ($x instanceof B) {
            $x->bar();
        }
    }
    
  2. Only allow a single type to be passed if the variable comes from a parameter:

    function someFunction(B $x) { /** ... */ }
    
Loading history...
372
    }
373
374
    /**
375
     * Remembers the URL in the session so that it can be retrieved back later by [[getReturnUrl()]].
376
     * @param string|array $url the URL that the user should be redirected to after login.
377
     * If an array is given, [[UrlManager::createUrl()]] will be called to create the corresponding URL.
378
     * The first element of the array should be the route, and the rest of
379
     * the name-value pairs are GET parameters used to construct the URL. For example,
380
     *
381
     * ```php
382
     * ['admin/index', 'ref' => 1]
383
     * ```
384
     */
385 2
    public function setReturnUrl($url)
386
    {
387 2
        Yii::$app->getSession()->set($this->returnUrlParam, $url);
0 ignored issues
show
Bug introduced by
The method getSession does only exist in yii\web\Application, but not in yii\console\Application.

It seems like the method you are trying to call exists only in some of the possible types.

Let’s take a look at an example:

class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}

Available Fixes

  1. Add an additional type-check:

    /**
     * @param A|B $x
     */
    function someFunction($x)
    {
        $x->foo();
    
        if ($x instanceof B) {
            $x->bar();
        }
    }
    
  2. Only allow a single type to be passed if the variable comes from a parameter:

    function someFunction(B $x) { /** ... */ }
    
Loading history...
388 2
    }
389
390
    /**
391
     * Redirects the user browser to the login page.
392
     *
393
     * Before the redirection, the current URL (if it's not an AJAX url) will be kept as [[returnUrl]] so that
394
     * the user browser may be redirected back to the current page after successful login.
395
     *
396
     * Make sure you set [[loginUrl]] so that the user browser can be redirected to the specified login URL after
397
     * calling this method.
398
     *
399
     * Note that when [[loginUrl]] is set, calling this method will NOT terminate the application execution.
400
     *
401
     * @param bool $checkAjax whether to check if the request is an AJAX request. When this is true and the request
402
     * is an AJAX request, the current URL (for AJAX request) will NOT be set as the return URL.
403
     * @param bool $checkAcceptHeader whether to check if the request accepts HTML responses. Defaults to `true`. When this is true and
404
     * the request does not accept HTML responses the current URL will not be SET as the return URL. Also instead of
405
     * redirecting the user an ForbiddenHttpException is thrown. This parameter is available since version 2.0.8.
406
     * @return Response the redirection response if [[loginUrl]] is set
407
     * @throws ForbiddenHttpException the "Access Denied" HTTP exception if [[loginUrl]] is not set or a redirect is
408
     * not applicable.
409
     */
410 2
    public function loginRequired($checkAjax = true, $checkAcceptHeader = true)
411
    {
412 2
        $request = Yii::$app->getRequest();
413 2
        $canRedirect = !$checkAcceptHeader || $this->checkRedirectAcceptable();
414 2
        if ($this->enableSession
415 2
            && $request->getIsGet()
416 2
            && (!$checkAjax || !$request->getIsAjax())
417 2
            && $canRedirect
418
        ) {
419 1
            $this->setReturnUrl($request->getUrl());
420
        }
421 2
        if ($this->loginUrl !== null && $canRedirect) {
422 1
            $loginUrl = (array) $this->loginUrl;
423 1
            if ($loginUrl[0] !== Yii::$app->requestedRoute) {
424 1
                return Yii::$app->getResponse()->redirect($this->loginUrl);
425
            }
426
        }
427 2
        throw new ForbiddenHttpException(Yii::t('yii', 'Login Required'));
428
    }
429
430
    /**
431
     * This method is called before logging in a user.
432
     * The default implementation will trigger the [[EVENT_BEFORE_LOGIN]] event.
433
     * If you override this method, make sure you call the parent implementation
434
     * so that the event is triggered.
435
     * @param IdentityInterface $identity the user identity information
436
     * @param bool $cookieBased whether the login is cookie-based
437
     * @param int $duration number of seconds that the user can remain in logged-in status.
438
     * If 0, it means login till the user closes the browser or the session is manually destroyed.
439
     * @return bool whether the user should continue to be logged in
440
     */
441 11
    protected function beforeLogin($identity, $cookieBased, $duration)
442
    {
443 11
        $event = new UserEvent([
444 11
            'identity' => $identity,
445 11
            'cookieBased' => $cookieBased,
446 11
            'duration' => $duration,
447
        ]);
448 11
        $this->trigger(self::EVENT_BEFORE_LOGIN, $event);
449
450 11
        return $event->isValid;
451
    }
452
453
    /**
454
     * This method is called after the user is successfully logged in.
455
     * The default implementation will trigger the [[EVENT_AFTER_LOGIN]] event.
456
     * If you override this method, make sure you call the parent implementation
457
     * so that the event is triggered.
458
     * @param IdentityInterface $identity the user identity information
459
     * @param bool $cookieBased whether the login is cookie-based
460
     * @param int $duration number of seconds that the user can remain in logged-in status.
461
     * If 0, it means login till the user closes the browser or the session is manually destroyed.
462
     */
463 11
    protected function afterLogin($identity, $cookieBased, $duration)
464
    {
465 11
        $this->trigger(self::EVENT_AFTER_LOGIN, new UserEvent([
466 11
            'identity' => $identity,
467 11
            'cookieBased' => $cookieBased,
468 11
            'duration' => $duration,
469
        ]));
470 11
    }
471
472
    /**
473
     * This method is invoked when calling [[logout()]] to log out a user.
474
     * The default implementation will trigger the [[EVENT_BEFORE_LOGOUT]] event.
475
     * If you override this method, make sure you call the parent implementation
476
     * so that the event is triggered.
477
     * @param IdentityInterface $identity the user identity information
478
     * @return bool whether the user should continue to be logged out
479
     */
480
    protected function beforeLogout($identity)
481
    {
482
        $event = new UserEvent([
483
            'identity' => $identity,
484
        ]);
485
        $this->trigger(self::EVENT_BEFORE_LOGOUT, $event);
486
487
        return $event->isValid;
488
    }
489
490
    /**
491
     * This method is invoked right after a user is logged out via [[logout()]].
492
     * The default implementation will trigger the [[EVENT_AFTER_LOGOUT]] event.
493
     * If you override this method, make sure you call the parent implementation
494
     * so that the event is triggered.
495
     * @param IdentityInterface $identity the user identity information
496
     */
497
    protected function afterLogout($identity)
498
    {
499
        $this->trigger(self::EVENT_AFTER_LOGOUT, new UserEvent([
500
            'identity' => $identity,
501
        ]));
502
    }
503
504
    /**
505
     * Renews the identity cookie.
506
     * This method will set the expiration time of the identity cookie to be the current time
507
     * plus the originally specified cookie duration.
508
     */
509
    protected function renewIdentityCookie()
510
    {
511
        $name = $this->identityCookie['name'];
512
        $value = Yii::$app->getRequest()->getCookies()->getValue($name);
513
        if ($value !== null) {
514
            $data = json_decode($value, true);
515
            if (is_array($data) && isset($data[2])) {
516
                $cookie = Yii::createObject('yii\web\Cookie', $this->identityCookie);
517
                $cookie->value = $value;
518
                $cookie->expire = time() + (int) $data[2];
519
                Yii::$app->getResponse()->getCookies()->add($cookie);
520
            }
521
        }
522
    }
523
524
    /**
525
     * Sends an identity cookie.
526
     * This method is used when [[enableAutoLogin]] is true.
527
     * It saves [[id]], [[IdentityInterface::getAuthKey()|auth key]], and the duration of cookie-based login
528
     * information in the cookie.
529
     * @param IdentityInterface $identity
530
     * @param int $duration number of seconds that the user can remain in logged-in status.
531
     * @see loginByCookie()
532
     */
533 1
    protected function sendIdentityCookie($identity, $duration)
534
    {
535 1
        $cookie = Yii::createObject('yii\web\Cookie', $this->identityCookie);
536 1
        $cookie->value = json_encode([
537 1
            $identity->getId(),
538 1
            $identity->getAuthKey(),
539 1
            $duration,
540 1
        ], JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
541 1
        $cookie->expire = time() + $duration;
542 1
        Yii::$app->getResponse()->getCookies()->add($cookie);
543 1
    }
544
545
    /**
546
     * Determines if an identity cookie has a valid format and contains a valid auth key.
547
     * This method is used when [[enableAutoLogin]] is true.
548
     * This method attempts to authenticate a user using the information in the identity cookie.
549
     * @return array|null Returns an array of 'identity' and 'duration' if valid, otherwise null.
550
     * @see loginByCookie()
551
     * @since 2.0.9
552
     */
553 2
    protected function getIdentityAndDurationFromCookie()
554
    {
555 2
        $value = Yii::$app->getRequest()->getCookies()->getValue($this->identityCookie['name']);
556 2
        if ($value === null) {
557 1
            return null;
558
        }
559 1
        $data = json_decode($value, true);
560 1
        if (count($data) == 3) {
561
            list($id, $authKey, $duration) = $data;
562
            /* @var $class IdentityInterface */
563
            $class = $this->identityClass;
564
            $identity = $class::findIdentity($id);
565
            if ($identity !== null) {
566
                if (!$identity instanceof IdentityInterface) {
567
                    throw new InvalidValueException("$class::findIdentity() must return an object implementing IdentityInterface.");
568
                } elseif (!$identity->validateAuthKey($authKey)) {
569
                    Yii::warning("Invalid auth key attempted for user '$id': $authKey", __METHOD__);
570
                } else {
571
                    return ['identity' => $identity, 'duration' => $duration];
572
                }
573
            }
574
        }
575 1
        $this->removeIdentityCookie();
576 1
        return null;
577
    }
578
579
    /**
580
     * Removes the identity cookie.
581
     * This method is used when [[enableAutoLogin]] is true.
582
     * @since 2.0.9
583
     */
584 1
    protected function removeIdentityCookie()
585
    {
586 1
        Yii::$app->getResponse()->getCookies()->remove(Yii::createObject('yii\web\Cookie', $this->identityCookie));
587 1
    }
588
589
    /**
590
     * Switches to a new identity for the current user.
591
     *
592
     * When [[enableSession]] is true, this method may use session and/or cookie to store the user identity information,
593
     * according to the value of `$duration`. Please refer to [[login()]] for more details.
594
     *
595
     * This method is mainly called by [[login()]], [[logout()]] and [[loginByCookie()]]
596
     * when the current user needs to be associated with the corresponding identity information.
597
     *
598
     * @param IdentityInterface|null $identity the identity information to be associated with the current user.
599
     * If null, it means switching the current user to be a guest.
600
     * @param int $duration number of seconds that the user can remain in logged-in status.
601
     * This parameter is used only when `$identity` is not null.
602
     */
603 14
    public function switchIdentity($identity, $duration = 0)
604
    {
605 14
        $this->setIdentity($identity);
606
607 14
        if (!$this->enableSession) {
608
            return;
609
        }
610
611
        /* Ensure any existing identity cookies are removed. */
612 14
        if ($this->enableAutoLogin && ($this->autoRenewCookie || $identity === null)) {
613
            $this->removeIdentityCookie();
614
        }
615
616 14
        $session = Yii::$app->getSession();
0 ignored issues
show
Bug introduced by
The method getSession does only exist in yii\web\Application, but not in yii\console\Application.

It seems like the method you are trying to call exists only in some of the possible types.

Let’s take a look at an example:

class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}

Available Fixes

  1. Add an additional type-check:

    /**
     * @param A|B $x
     */
    function someFunction($x)
    {
        $x->foo();
    
        if ($x instanceof B) {
            $x->bar();
        }
    }
    
  2. Only allow a single type to be passed if the variable comes from a parameter:

    function someFunction(B $x) { /** ... */ }
    
Loading history...
617 14
        if (!YII_ENV_TEST) {
618
            $session->regenerateID(true);
619
        }
620 14
        $session->remove($this->idParam);
621 14
        $session->remove($this->authTimeoutParam);
622
623 14
        if ($identity) {
624 14
            $session->set($this->idParam, $identity->getId());
625 14
            if ($this->authTimeout !== null) {
626 1
                $session->set($this->authTimeoutParam, time() + $this->authTimeout);
627
            }
628 14
            if ($this->absoluteAuthTimeout !== null) {
629
                $session->set($this->absoluteAuthTimeoutParam, time() + $this->absoluteAuthTimeout);
630
            }
631 14
            if ($this->enableAutoLogin && $duration > 0) {
632 1
                $this->sendIdentityCookie($identity, $duration);
633
            }
634
        }
635 14
    }
636
637
    /**
638
     * Updates the authentication status using the information from session and cookie.
639
     *
640
     * This method will try to determine the user identity using the [[idParam]] session variable.
641
     *
642
     * If [[authTimeout]] is set, this method will refresh the timer.
643
     *
644
     * If the user identity cannot be determined by session, this method will try to [[loginByCookie()|login by cookie]]
645
     * if [[enableAutoLogin]] is true.
646
     */
647 10
    protected function renewAuthStatus()
648
    {
649 10
        $session = Yii::$app->getSession();
0 ignored issues
show
Bug introduced by
The method getSession does only exist in yii\web\Application, but not in yii\console\Application.

It seems like the method you are trying to call exists only in some of the possible types.

Let’s take a look at an example:

class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}

Available Fixes

  1. Add an additional type-check:

    /**
     * @param A|B $x
     */
    function someFunction($x)
    {
        $x->foo();
    
        if ($x instanceof B) {
            $x->bar();
        }
    }
    
  2. Only allow a single type to be passed if the variable comes from a parameter:

    function someFunction(B $x) { /** ... */ }
    
Loading history...
650 10
        $id = $session->getHasSessionId() || $session->getIsActive() ? $session->get($this->idParam) : null;
651
652 10
        if ($id === null) {
653 10
            $identity = null;
654
        } else {
655
            /* @var $class IdentityInterface */
656 1
            $class = $this->identityClass;
657 1
            $identity = $class::findIdentity($id);
658
        }
659
660 10
        $this->setIdentity($identity);
661
662 10
        if ($identity !== null && ($this->authTimeout !== null || $this->absoluteAuthTimeout !== null)) {
663 1
            $expire = $this->authTimeout !== null ? $session->get($this->authTimeoutParam) : null;
664 1
            $expireAbsolute = $this->absoluteAuthTimeout !== null ? $session->get($this->absoluteAuthTimeoutParam) : null;
665 1
            if ($expire !== null && $expire < time() || $expireAbsolute !== null && $expireAbsolute < time()) {
666
                $this->logout(false);
667 1
            } elseif ($this->authTimeout !== null) {
668 1
                $session->set($this->authTimeoutParam, time() + $this->authTimeout);
669
            }
670
        }
671
672 10
        if ($this->enableAutoLogin) {
673 2
            if ($this->getIsGuest()) {
674 2
                $this->loginByCookie();
675 1
            } elseif ($this->autoRenewCookie) {
676
                $this->renewIdentityCookie();
677
            }
678
        }
679 10
    }
680
681
    /**
682
     * Checks if the user can perform the operation as specified by the given permission.
683
     *
684
     * Note that you must configure "authManager" application component in order to use this method.
685
     * Otherwise it will always return false.
686
     *
687
     * @param string $permissionName the name of the permission (e.g. "edit post") that needs access check.
688
     * @param array $params name-value pairs that would be passed to the rules associated
689
     * with the roles and permissions assigned to the user.
690
     * @param bool $allowCaching whether to allow caching the result of access check.
691
     * When this parameter is true (default), if the access check of an operation was performed
692
     * before, its result will be directly returned when calling this method to check the same
693
     * operation. If this parameter is false, this method will always call
694
     * [[\yii\rbac\CheckAccessInterface::checkAccess()]] to obtain the up-to-date access result. Note that this
695
     * caching is effective only within the same request and only works when `$params = []`.
696
     * @return bool whether the user can perform the operation as specified by the given permission.
697
     */
698 20
    public function can($permissionName, $params = [], $allowCaching = true)
699
    {
700 20
        if ($allowCaching && empty($params) && isset($this->_access[$permissionName])) {
701
            return $this->_access[$permissionName];
702
        }
703 20
        if (($accessChecker = $this->getAccessChecker()) === null) {
704
            return false;
705
        }
706 20
        $access = $accessChecker->checkAccess($this->getId(), $permissionName, $params);
707 20
        if ($allowCaching && empty($params)) {
708 8
            $this->_access[$permissionName] = $access;
709
        }
710
711 20
        return $access;
712
    }
713
714
    /**
715
     * Checks if the `Accept` header contains a content type that allows redirection to the login page.
716
     * The login page is assumed to serve `text/html` or `application/xhtml+xml` by default. You can change acceptable
717
     * content types by modifying [[acceptableRedirectTypes]] property.
718
     * @return bool whether this request may be redirected to the login page.
719
     * @see acceptableRedirectTypes
720
     * @since 2.0.8
721
     */
722 2
    protected function checkRedirectAcceptable()
723
    {
724 2
        $acceptableTypes = Yii::$app->getRequest()->getAcceptableContentTypes();
725 2
        if (empty($acceptableTypes) || count($acceptableTypes) === 1 && array_keys($acceptableTypes)[0] === '*/*') {
726 1
            return true;
727
        }
728
729 2
        foreach ($acceptableTypes as $type => $params) {
730 2
            if (in_array($type, $this->acceptableRedirectTypes, true)) {
731 2
                return true;
732
            }
733
        }
734
735 2
        return false;
736
    }
737
738
    /**
739
     * Returns auth manager associated with the user component.
740
     *
741
     * By default this is the `authManager` application component.
742
     * You may override this method to return a different auth manager instance if needed.
743
     * @return \yii\rbac\ManagerInterface
744
     * @since 2.0.6
745
     * @deprecated since version 2.0.9, to be removed in 2.1. Use [[getAccessChecker()]] instead.
746
     */
747
    protected function getAuthManager()
748
    {
749
        return Yii::$app->getAuthManager();
750
    }
751
752
    /**
753
     * Returns the access checker used for checking access.
754
     * @return CheckAccessInterface
755
     * @since 2.0.9
756
     */
757 20
    protected function getAccessChecker()
758
    {
759 20
        return $this->accessChecker !== null ? $this->accessChecker : $this->getAuthManager();
0 ignored issues
show
Deprecated Code introduced by
The method yii\web\User::getAuthManager() has been deprecated with message: since version 2.0.9, to be removed in 2.1. Use [[getAccessChecker()]] instead.

This method has been deprecated. The supplier of the class has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the method will be removed from the class and what other method or class to use instead.

Loading history...
760
    }
761
}
762