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			277 lines
		
	
	
		
			9.8 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			277 lines
		
	
	
		
			9.8 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| 
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| /**
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|  * @link https://www.yiiframework.com/
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|  * @copyright Copyright (c) 2008 Yii Software LLC
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|  * @license https://www.yiiframework.com/license/
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|  */
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| 
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| namespace yii\rest;
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| 
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| use Yii;
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| use yii\base\InvalidConfigException;
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| use yii\helpers\Inflector;
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| use yii\web\CompositeUrlRule;
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| use yii\web\UrlRule as WebUrlRule;
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| use yii\web\UrlRuleInterface;
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| 
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| /**
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|  * UrlRule is provided to simplify the creation of URL rules for RESTful API support.
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|  *
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|  * The simplest usage of UrlRule is to declare a rule like the following in the application configuration,
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|  *
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|  * ```php
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|  * [
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|  *     'class' => 'yii\rest\UrlRule',
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|  *     'controller' => 'user',
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|  * ]
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|  * ```
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|  *
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|  * The above code will create a whole set of URL rules supporting the following RESTful API endpoints:
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|  *
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|  * - `'PUT,PATCH users/<id>' => 'user/update'`: update a user
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|  * - `'DELETE users/<id>' => 'user/delete'`: delete a user
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|  * - `'GET,HEAD users/<id>' => 'user/view'`: return the details/overview/options of a user
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|  * - `'POST users' => 'user/create'`: create a new user
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|  * - `'GET,HEAD users' => 'user/index'`: return a list/overview/options of users
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|  * - `'users/<id>' => 'user/options'`: process all unhandled verbs of a user
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|  * - `'users' => 'user/options'`: process all unhandled verbs of user collection
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|  *
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|  * You may configure [[only]] and/or [[except]] to disable some of the above rules.
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|  * You may configure [[patterns]] to completely redefine your own list of rules.
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|  * You may configure [[controller]] with multiple controller IDs to generate rules for all these controllers.
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|  * For example, the following code will disable the `delete` rule and generate rules for both `user` and `post` controllers:
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|  *
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|  * ```php
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|  * [
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|  *     'class' => 'yii\rest\UrlRule',
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|  *     'controller' => ['user', 'post'],
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|  *     'except' => ['delete'],
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|  * ]
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|  * ```
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|  *
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|  * The property [[controller]] is required and should represent one or multiple controller IDs.
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|  * Each controller ID should be prefixed with the module ID if the controller is within a module.
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|  * The controller ID used in the pattern will be automatically pluralized (e.g. `user` becomes `users`
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|  * as shown in the above examples).
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|  *
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|  * For more details and usage information on UrlRule, see the [guide article on rest routing](guide:rest-routing).
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|  *
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|  * @author Qiang Xue <qiang.xue@gmail.com>
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|  * @since 2.0
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|  */
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| class UrlRule extends CompositeUrlRule
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| {
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|     /**
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|      * @var string|null the common prefix string shared by all patterns.
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|      */
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|     public $prefix;
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|     /**
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|      * @var string the suffix that will be assigned to [[\yii\web\UrlRule::suffix]] for every generated rule.
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|      */
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|     public $suffix;
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|     /**
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|      * @var string|array the controller ID (e.g. `user`, `post-comment`) that the rules in this composite rule
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|      * are dealing with. It should be prefixed with the module ID if the controller is within a module (e.g. `admin/user`).
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|      *
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|      * By default, the controller ID will be pluralized automatically when it is put in the patterns of the
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|      * generated rules. If you want to explicitly specify how the controller ID should appear in the patterns,
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|      * you may use an array with the array key being as the controller ID in the pattern, and the array value
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|      * the actual controller ID. For example, `['u' => 'user']`.
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|      *
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|      * You may also pass multiple controller IDs as an array. If this is the case, this composite rule will
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|      * generate applicable URL rules for EVERY specified controller. For example, `['user', 'post']`.
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|      */
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|     public $controller;
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|     /**
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|      * @var array list of acceptable actions. If not empty, only the actions within this array
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|      * will have the corresponding URL rules created.
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|      * @see patterns
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|      */
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|     public $only = [];
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|     /**
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|      * @var array list of actions that should be excluded. Any action found in this array
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|      * will NOT have its URL rules created.
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|      * @see patterns
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|      */
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|     public $except = [];
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|     /**
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|      * @var array patterns for supporting extra actions in addition to those listed in [[patterns]].
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|      * The keys are the patterns and the values are the corresponding action IDs.
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|      * These extra patterns will take precedence over [[patterns]].
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|      */
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|     public $extraPatterns = [];
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|     /**
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|      * @var array list of tokens that should be replaced for each pattern. The keys are the token names,
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|      * and the values are the corresponding replacements.
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|      * @see patterns
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|      */
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|     public $tokens = [
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|         '{id}' => '<id:\\d[\\d,]*>',
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|     ];
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|     /**
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|      * @var array list of possible patterns and the corresponding actions for creating the URL rules.
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|      * The keys are the patterns and the values are the corresponding actions.
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|      * The format of patterns is `Verbs Pattern`, where `Verbs` stands for a list of HTTP verbs separated
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|      * by comma (without space). If `Verbs` is not specified, it means all verbs are allowed.
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|      * `Pattern` is optional. It will be prefixed with [[prefix]]/[[controller]]/,
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|      * and tokens in it will be replaced by [[tokens]].
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|      */
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|     public $patterns = [
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|         'PUT,PATCH {id}' => 'update',
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|         'DELETE {id}' => 'delete',
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|         'GET,HEAD {id}' => 'view',
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|         'POST' => 'create',
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|         'GET,HEAD' => 'index',
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|         '{id}' => 'options',
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|         '' => 'options',
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|     ];
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|     /**
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|      * @var array the default configuration for creating each URL rule contained by this rule.
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|      */
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|     public $ruleConfig = [
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|         'class' => 'yii\web\UrlRule',
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|     ];
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|     /**
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|      * @var bool whether to automatically pluralize the URL names for controllers.
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|      * If true, a controller ID will appear in plural form in URLs. For example, `user` controller
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|      * will appear as `users` in URLs.
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|      * @see controller
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|      */
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|     public $pluralize = true;
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| 
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function init()
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|     {
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|         if (empty($this->controller)) {
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|             throw new InvalidConfigException('"controller" must be set.');
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|         }
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| 
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|         $controllers = [];
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|         foreach ((array) $this->controller as $urlName => $controller) {
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|             if (is_int($urlName)) {
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|                 $urlName = $this->pluralize ? Inflector::pluralize($controller) : $controller;
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|             }
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|             $controllers[$urlName] = $controller;
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|         }
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|         $this->controller = $controllers;
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| 
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|         $this->prefix = trim((string)$this->prefix, '/');
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| 
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|         parent::init();
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     protected function createRules()
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|     {
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|         $only = array_flip($this->only);
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|         $except = array_flip($this->except);
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|         $patterns = $this->extraPatterns + $this->patterns;
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|         $rules = [];
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|         foreach ($this->controller as $urlName => $controller) {
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|             $prefix = trim($this->prefix . '/' . $urlName, '/');
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|             foreach ($patterns as $pattern => $action) {
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|                 if (!isset($except[$action]) && (empty($only) || isset($only[$action]))) {
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|                     $rules[$urlName][] = $this->createRule($pattern, $prefix, $controller . '/' . $action);
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|                 }
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|             }
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|         }
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| 
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|         return $rules;
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|     }
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| 
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|     /**
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|      * Creates a URL rule using the given pattern and action.
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|      * @param string $pattern
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|      * @param string $prefix
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|      * @param string $action
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|      * @return UrlRuleInterface
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|      */
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|     protected function createRule($pattern, $prefix, $action)
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|     {
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|         $verbs = 'GET|HEAD|POST|PUT|PATCH|DELETE|OPTIONS';
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|         if (preg_match("/^((?:($verbs),)*($verbs))(?:\\s+(.*))?$/", $pattern, $matches)) {
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|             $verbs = explode(',', $matches[1]);
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|             $pattern = isset($matches[4]) ? $matches[4] : '';
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|         } else {
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|             $verbs = [];
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|         }
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| 
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|         $config = $this->ruleConfig;
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|         $config['verb'] = $verbs;
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|         $config['pattern'] = rtrim($prefix . '/' . strtr($pattern, $this->tokens), '/');
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|         $config['route'] = $action;
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|         $config['suffix'] = $this->suffix;
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| 
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|         return Yii::createObject($config);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function parseRequest($manager, $request)
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|     {
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|         $pathInfo = $request->getPathInfo();
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|         if (
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|             $this->prefix !== ''
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|             && strpos($this->prefix, '<') === false
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|             && strpos($pathInfo . '/', $this->prefix . '/') !== 0
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|         ) {
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|             return false;
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|         }
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| 
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|         foreach ($this->rules as $urlName => $rules) {
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|             if (strpos($pathInfo, $urlName) !== false) {
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|                 foreach ($rules as $rule) {
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|                     /* @var $rule WebUrlRule */
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|                     $result = $rule->parseRequest($manager, $request);
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|                     if (YII_DEBUG) {
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|                         Yii::debug([
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|                             'rule' => method_exists($rule, '__toString') ? $rule->__toString() : get_class($rule),
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|                             'match' => $result !== false,
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|                             'parent' => self::className(),
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|                         ], __METHOD__);
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|                     }
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|                     if ($result !== false) {
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|                         return $result;
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|                     }
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|                 }
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|             }
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|         }
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| 
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|         return false;
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function createUrl($manager, $route, $params)
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|     {
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|         $this->createStatus = WebUrlRule::CREATE_STATUS_SUCCESS;
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|         foreach ($this->controller as $urlName => $controller) {
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|             if (strpos($route, $controller) !== false) {
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|                 /* @var $rules UrlRuleInterface[] */
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|                 $rules = $this->rules[$urlName];
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|                 $url = $this->iterateRules($rules, $manager, $route, $params);
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|                 if ($url !== false) {
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|                     return $url;
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|                 }
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|             } else {
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|                 $this->createStatus |= WebUrlRule::CREATE_STATUS_ROUTE_MISMATCH;
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|             }
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|         }
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| 
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|         if ($this->createStatus === WebUrlRule::CREATE_STATUS_SUCCESS) {
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|             // create status was not changed - there is no rules configured
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|             $this->createStatus = WebUrlRule::CREATE_STATUS_PARSING_ONLY;
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|         }
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| 
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|         return false;
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|     }
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| }
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