| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  * The Jetpack Connection manager class file. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * @package jetpack-connection | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | namespace Automattic\Jetpack\Connection; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | use Automattic\Jetpack\Options\Manager as Options_Manager; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * The Jetpack Connection Manager class that is used as a single gateway between WordPress.com | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * and Jetpack. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | class Manager implements Manager_Interface { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | 	/* | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | 	 * Used internally when we want to look for the Normal Blog Token | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | 	 * without knowing its token key ahead of time. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | 	const MAGIC_NORMAL_TOKEN_KEY = ';normal;'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | 	const SECRETS_MISSING        = 'secrets_missing'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | 	const SECRETS_EXPIRED        = 'secrets_expired'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | 	const SECRETS_OPTION_NAME    = 'secrets'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | 	const MASTER_USER            = true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  | 	 * The object for managing options. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | 	 * @var \Automattic\Jetpack\Options\Manager | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | 	protected $option_manager; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | 	 * The procedure that should be run to generate secrets. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  | 	 * @var Callable | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  | 	protected $secret_callable; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  | 	 * Initializes all needed hooks and request handlers. Handles API calls, upload | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  | 	 * requests, authentication requests. Also XMLRPC options requests. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  | 	 * Fallback XMLRPC is also a bridge, but probably can be a class that inherits | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  | 	 * this one. Among other things it should strip existing methods. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  | 	 * @param Array $methods an array of API method names for the Connection to accept and | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  | 	 *                       pass on to existing callables. It's possible to specify whether | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  | 	 *                       each method should be available for unauthenticated calls or not. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  | 	 * @see Jetpack::__construct | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  | 	public function initialize( $methods ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  | 		$methods; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  | 	 * Returns true if the current site is connected to WordPress.com. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  | 	 * @return Boolean is the site connected? | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  | 	public function is_active() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  | 		return (bool) $this->get_access_token( self::MASTER_USER ); | 
                            
                    |  |  |  | 
                                                                                        
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                | 63 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  | 	public function get_magic_normal_token_key() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  | 		return self::MAGIC_NORMAL_TOKEN_KEY; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  | 	 * Returns true if the user with the specified identifier is connected to | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  | 	 * WordPress.com. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  | 	 * @param Integer $user_id the user identifier. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  | 	 * @return Boolean is the user connected? | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  | 	public function is_user_connected( $user_id ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  | 		$user_id = false === $user_id ? get_current_user_id() : absint( $user_id ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  | 		if ( ! $user_id ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  | 			return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  | 		return (bool) $this->get_access_token( $user_id ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  | 	 * Get the wpcom user data of the current|specified connected user. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  | 	 * @param Integer $user_id the user identifier. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  | 	 * @return Object the user object. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  | 	public function get_connected_user_data( $user_id ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  | 		return $user_id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  | 	 * Is the user the connection owner. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  | 	 * @param Integer $user_id the user identifier. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  | 	 * @return Boolean is the user the connection owner? | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  | 	public function is_connection_owner( $user_id ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  | 		return $user_id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  | 	 * Unlinks the current user from the linked WordPress.com user | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  | 	 * @param Integer $user_id the user identifier. | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 109 |  |  | 	 */ | 
            
                                                                        
                            
            
                                    
            
            
                | 110 |  |  | 	public static function disconnect_user( $user_id ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 111 |  |  | 		return $user_id; | 
            
                                                                        
                            
            
                                    
            
            
                | 112 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  | 	 * Initializes a transport server, whatever it may be, saves into the object property. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  | 	 * Should be changed to be protected. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  | 	public function initialize_server() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  | 	 * Checks if the current request is properly authenticated, bails if not. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  | 	 * Should be changed to be protected. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  | 	public function require_authentication() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  | 	 * Verifies the correctness of the request signature. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  | 	 * Should be changed to be protected. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  | 	public function verify_signature() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  | 	 * Attempts Jetpack registration which sets up the site for connection. Should | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  | 	 * remain public because the call to action comes from the current site, not from | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  | 	 * WordPress.com. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  | 	 * @return Integer zero on success, or a bitmask on failure. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  | 	public function register() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  | 		return 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  | 	 * Returns the callable that would be used to generate secrets. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  | 	 * @return Callable a function that returns a secure string to be used as a secret. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  | 	protected function get_secret_callable() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  | 		if ( ! isset( $this->secret_callable ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  | 			/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  | 			 * Allows modification of the callable that is used to generate connection secrets. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  | 			 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  | 			 * @param Callable a function or method that returns a secret string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  | 			 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  | 			$this->secret_callable = apply_filters( 'jetpack_connection_secret_generator', 'wp_generate_password' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  | 		return $this->secret_callable; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  | 	 * Returns the object that is to be used for all option manipulation. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  | 	 * @return Object $manager an option manager object. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  | 	protected function get_option_manager() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  | 		if ( ! isset( $this->option_manager ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  | 			/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  | 			 * Allows modification of the object that is used to manipulate stored data. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  | 			 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  | 			 * @param Jetpack_Options an option manager object. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  | 			 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  | 			$this->option_manager = apply_filters( 'jetpack_connection_option_manager', new Options_Manager() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  | 		return $this->option_manager; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  | 	 * Generates two secret tokens and the end of life timestamp for them. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  | 	 * @param String  $action  The action name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  | 	 * @param Integer $user_id The user identifier. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  | 	 * @param Integer $exp     Expiration time in seconds. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  | 	public function generate_secrets( $action, $user_id, $exp ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  | 		$callable = $this->get_secret_callable(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  | 		$secrets = $this->get_option_manager()->get_raw_option( 'jetpack_secrets', array() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  | 		$secret_name = 'jetpack_' . $action . '_' . $user_id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  | 		if ( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  | 			isset( $secrets[ $secret_name ] ) && | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  | 			$secrets[ $secret_name ]['exp'] > time() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  | 		) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  | 			return $secrets[ $secret_name ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  | 		$secret_value = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  | 			'secret_1' => call_user_func( $callable ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  | 			'secret_2' => call_user_func( $callable ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  | 			'exp'      => time() + $exp, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  | 		$secrets[ $secret_name ] = $secret_value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  | 		$this->get_option_manager()->update_option( self::SECRETS_OPTION_NAME, $secrets ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  | 		return $secrets[ $secret_name ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  | 	 * Returns two secret tokens and the end of life timestamp for them. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  | 	 * @param String  $action  The action name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  | 	 * @param Integer $user_id The user identifier. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  | 	 * @return string|array an array of secrets or an error string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  | 	public function get_secrets( $action, $user_id ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  | 		$secret_name = 'jetpack_' . $action . '_' . $user_id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  | 		$secrets     = $this->get_option_manager()->get_option( self::SECRETS_OPTION_NAME, array() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  | 		if ( ! isset( $secrets[ $secret_name ] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  | 			return self::SECRETS_MISSING; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  | 		if ( $secrets[ $secret_name ]['exp'] < time() ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  | 			$this->delete_secrets( $action, $user_id ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  | 			return self::SECRETS_EXPIRED; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  | 		return $secrets[ $secret_name ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  | 	 * Deletes secret tokens in case they, for example, have expired. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  | 	 * @param String  $action  The action name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  | 	 * @param Integer $user_id The user identifier. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  | 	public function delete_secrets( $action, $user_id ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  | 		$secret_name = 'jetpack_' . $action . '_' . $user_id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  | 		$secrets     = $this->get_option_manager()->get_option( self::SECRETS_OPTION_NAME, array() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  | 		if ( isset( $secrets[ $secret_name ] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  | 			unset( $secrets[ $secret_name ] ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  | 			$this->get_option_manager()->update_option( self::SECRETS_OPTION_NAME, $secrets ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  | 	 * Responds to a WordPress.com call to register the current site. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  | 	 * Should be changed to protected. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  | 	public function handle_registration() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  | 	 * Responds to a WordPress.com call to authorize the current user. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  | 	 * Should be changed to protected. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  | 	public function handle_authorization() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 269 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 270 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 271 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 272 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 273 |  |  | 	 * Builds a URL to the Jetpack connection auth page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 274 |  |  | 	 * This needs rethinking. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 275 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 276 |  |  | 	 * @param bool        $raw If true, URL will not be escaped. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 277 |  |  | 	 * @param bool|string $redirect If true, will redirect back to Jetpack wp-admin landing page after connection. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 278 |  |  | 	 *                              If string, will be a custom redirect. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 279 |  |  | 	 * @param bool|string $from If not false, adds 'from=$from' param to the connect URL. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 280 |  |  | 	 * @param bool        $register If true, will generate a register URL regardless of the existing token, since 4.9.0. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 281 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 282 |  |  | 	 * @return string Connect URL | 
            
                                                                                                            
                            
            
                                    
            
            
                | 283 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 284 |  |  | 	public function build_connect_url( $raw, $redirect, $from, $register ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 285 |  |  | 		return array( $raw, $redirect, $from, $register ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 286 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 287 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 288 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 289 |  |  | 	 * Disconnects from the Jetpack servers. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 290 |  |  | 	 * Forgets all connection details and tells the Jetpack servers to do the same. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 291 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 292 |  |  | 	public function disconnect_site() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 293 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 294 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 295 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 296 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 297 |  |  | 	 * Gets the requested token. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 298 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 299 |  |  | 	 * Tokens are one of two types: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 300 |  |  | 	 * 1. Blog Tokens: These are the "main" tokens. Each site typically has one Blog Token, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 301 |  |  | 	 *    though some sites can have multiple "Special" Blog Tokens (see below). These tokens | 
            
                                                                                                            
                            
            
                                    
            
            
                | 302 |  |  | 	 *    are not associated with a user account. They represent the site's connection with | 
            
                                                                                                            
                            
            
                                    
            
            
                | 303 |  |  | 	 *    the Jetpack servers. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 304 |  |  | 	 * 2. User Tokens: These are "sub-"tokens. Each connected user account has one User Token. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 305 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 306 |  |  | 	 * All tokens look like "{$token_key}.{$private}". $token_key is a public ID for the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 307 |  |  | 	 * token, and $private is a secret that should never be displayed anywhere or sent | 
            
                                                                                                            
                            
            
                                    
            
            
                | 308 |  |  | 	 * over the network; it's used only for signing things. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 309 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 310 |  |  | 	 * Blog Tokens can be "Normal" or "Special". | 
            
                                                                                                            
                            
            
                                    
            
            
                | 311 |  |  | 	 * * Normal: The result of a normal connection flow. They look like | 
            
                                                                                                            
                            
            
                                    
            
            
                | 312 |  |  | 	 *   "{$random_string_1}.{$random_string_2}" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 313 |  |  | 	 *   That is, $token_key and $private are both random strings. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 314 |  |  | 	 *   Sites only have one Normal Blog Token. Normal Tokens are found in either | 
            
                                                                                                            
                            
            
                                    
            
            
                | 315 |  |  | 	 *   Jetpack_Options::get_option( 'blog_token' ) (usual) or the JETPACK_BLOG_TOKEN | 
            
                                                                                                            
                            
            
                                    
            
            
                | 316 |  |  | 	 *   constant (rare). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 317 |  |  | 	 * * Special: A connection token for sites that have gone through an alternative | 
            
                                                                                                            
                            
            
                                    
            
            
                | 318 |  |  | 	 *   connection flow. They look like: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 319 |  |  | 	 *   ";{$special_id}{$special_version};{$wpcom_blog_id};.{$random_string}" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 320 |  |  | 	 *   That is, $private is a random string and $token_key has a special structure with | 
            
                                                                                                            
                            
            
                                    
            
            
                | 321 |  |  | 	 *   lots of semicolons. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 322 |  |  | 	 *   Most sites have zero Special Blog Tokens. Special tokens are only found in the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 323 |  |  | 	 *   JETPACK_BLOG_TOKEN constant. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 324 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 325 |  |  | 	 * In particular, note that Normal Blog Tokens never start with ";" and that | 
            
                                                                                                            
                            
            
                                    
            
            
                | 326 |  |  | 	 * Special Blog Tokens always do. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 327 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 328 |  |  | 	 * When searching for a matching Blog Tokens, Blog Tokens are examined in the following | 
            
                                                                                                            
                            
            
                                    
            
            
                | 329 |  |  | 	 * order: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 330 |  |  | 	 * 1. Defined Special Blog Tokens (via the JETPACK_BLOG_TOKEN constant) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 331 |  |  | 	 * 2. Stored Normal Tokens (via Jetpack_Options::get_option( 'blog_token' )) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 332 |  |  | 	 * 3. Defined Normal Tokens (via the JETPACK_BLOG_TOKEN constant) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 333 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 334 |  |  | 	 * @param int|false    $user_id   false: Return the Blog Token. int: Return that user's User Token. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 335 |  |  | 	 * @param string|false $token_key If provided, check that the token matches the provided input. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 336 |  |  | 	 *                                false                                : Use first token. Default. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 337 |  |  | 	 *                                Jetpack_Data::MAGIC_NORMAL_TOKEN_KEY : Use first Normal Token. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 338 |  |  | 	 *                                non-empty string                     : Use matching token | 
            
                                                                                                            
                            
            
                                    
            
            
                | 339 |  |  | 	 * @return object|false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 340 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 341 |  |  | 	public function get_access_token( $user_id = false, $token_key = false ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 342 |  |  | 		$possible_special_tokens = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 343 |  |  | 		$possible_normal_tokens  = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 344 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 345 |  |  | 		if ( $user_id ) { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 346 |  |  | 			if ( ! $user_tokens = $this->get_option_manager()->get_option( 'user_tokens' ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 347 |  |  | 				return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 348 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 349 |  |  | 			if ( self::MASTER_USER === $user_id ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 350 |  |  | 				if ( ! $user_id = $this->get_option_manager()->get_option( 'master_user' ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 351 |  |  | 					return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 352 |  |  | 				} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 353 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 354 |  |  | 			if ( ! isset( $user_tokens[ $user_id ] ) || ! $user_tokens[ $user_id ] ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 355 |  |  | 				return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 356 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 357 |  |  | 			$user_token_chunks = explode( '.', $user_tokens[ $user_id ] ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 358 |  |  | 			if ( empty( $user_token_chunks[1] ) || empty( $user_token_chunks[2] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 359 |  |  | 				return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 360 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 361 |  |  | 			if ( $user_id != $user_token_chunks[2] ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 362 |  |  | 				return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 363 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 364 |  |  | 			$possible_normal_tokens[] = "{$user_token_chunks[0]}.{$user_token_chunks[1]}"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 365 |  |  | 		} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 366 |  |  | 			$stored_blog_token = $this->get_option_manager()->get_option( 'blog_token' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 367 |  |  | 			if ( $stored_blog_token ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 368 |  |  | 				$possible_normal_tokens[] = $stored_blog_token; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 369 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 370 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 371 |  |  | 			$defined_tokens = \Jetpack_Constants::is_defined( 'JETPACK_BLOG_TOKEN' ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 372 |  |  | 				? explode( ',', \Jetpack_Constants::get_constant( 'JETPACK_BLOG_TOKEN' ) ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 373 |  |  | 				: array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 374 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 375 |  |  | 			foreach ( $defined_tokens as $defined_token ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 376 |  |  | 				if ( ';' === $defined_token[0] ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 377 |  |  | 					$possible_special_tokens[] = $defined_token; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 378 |  |  | 				} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 379 |  |  | 					$possible_normal_tokens[] = $defined_token; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 380 |  |  | 				} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 381 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 382 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 383 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 384 |  |  | 		if ( self::MAGIC_NORMAL_TOKEN_KEY === $token_key ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 385 |  |  | 			$possible_tokens = $possible_normal_tokens; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 386 |  |  | 		} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 387 |  |  | 			$possible_tokens = array_merge( $possible_special_tokens, $possible_normal_tokens ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 388 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 389 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 390 |  |  | 		if ( ! $possible_tokens ) { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 391 |  |  | 			return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 392 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 393 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 394 |  |  | 		$valid_token = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 395 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 396 |  |  | 		if ( false === $token_key ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 397 |  |  | 			// Use first token. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 398 |  |  | 			$valid_token = $possible_tokens[0]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 399 |  |  | 		} elseif ( self::MAGIC_NORMAL_TOKEN_KEY === $token_key ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 400 |  |  | 			// Use first normal token. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 401 |  |  | 			$valid_token = $possible_tokens[0]; // $possible_tokens only contains normal tokens because of earlier check. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 402 |  |  | 		} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 403 |  |  | 			// Use the token matching $token_key or false if none. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 404 |  |  | 			// Ensure we check the full key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 405 |  |  | 			$token_check = rtrim( $token_key, '.' ) . '.'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 406 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 407 |  |  | 			foreach ( $possible_tokens as $possible_token ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 408 |  |  | 				if ( hash_equals( substr( $possible_token, 0, strlen( $token_check ) ), $token_check ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 409 |  |  | 					$valid_token = $possible_token; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 410 |  |  | 					break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 411 |  |  | 				} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 412 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 413 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 414 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 415 |  |  | 		if ( ! $valid_token ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 416 |  |  | 			return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 417 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 418 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 419 |  |  | 		return (object) array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 420 |  |  | 			'secret'           => $valid_token, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 421 |  |  | 			'external_user_id' => (int) $user_id, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 422 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 423 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 424 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 425 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 426 |  |  | 	 * This function mirrors Jetpack_Data::is_usable_domain() in the WPCOM codebase. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 427 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 428 |  |  | 	 * @param $domain | 
            
                                                                                                            
                            
            
                                    
            
            
                | 429 |  |  | 	 * @param array  $extra | 
            
                                                                                                            
                            
            
                                    
            
            
                | 430 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 431 |  |  | 	 * @return bool|WP_Error | 
            
                                                                                                            
                            
            
                                    
            
            
                | 432 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 433 |  |  | 	public function is_usable_domain( $domain, $extra = array() ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 434 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 435 |  |  | 		// If it's empty, just fail out. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 436 |  |  | 		if ( ! $domain ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 437 |  |  | 			return new WP_Error( 'fail_domain_empty', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it is empty.', 'jetpack' ), $domain ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 438 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 439 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 440 |  |  | 		/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 441 |  |  | 		 * Skips the usuable domain check when connecting a site. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 442 |  |  | 		 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 443 |  |  | 		 * Allows site administrators with domains that fail gethostname-based checks to pass the request to WP.com | 
            
                                                                                                            
                            
            
                                    
            
            
                | 444 |  |  | 		 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 445 |  |  | 		 * @since 4.1.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 446 |  |  | 		 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 447 |  |  | 		 * @param bool If the check should be skipped. Default false. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 448 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 449 |  |  | 		if ( apply_filters( 'jetpack_skip_usuable_domain_check', false ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 450 |  |  | 			return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 451 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 452 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 453 |  |  | 		// None of the explicit localhosts. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 454 |  |  | 		$forbidden_domains = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 455 |  |  | 			'wordpress.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 456 |  |  | 			'localhost', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 457 |  |  | 			'localhost.localdomain', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 458 |  |  | 			'127.0.0.1', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 459 |  |  | 			'local.wordpress.test',         // VVV | 
            
                                                                                                            
                            
            
                                    
            
            
                | 460 |  |  | 			'local.wordpress-trunk.test',   // VVV | 
            
                                                                                                            
                            
            
                                    
            
            
                | 461 |  |  | 			'src.wordpress-develop.test',   // VVV | 
            
                                                                                                            
                            
            
                                    
            
            
                | 462 |  |  | 			'build.wordpress-develop.test', // VVV | 
            
                                                                                                            
                            
            
                                    
            
            
                | 463 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 464 |  |  | 		if ( in_array( $domain, $forbidden_domains ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 465 |  |  | 			return new WP_Error( 'fail_domain_forbidden', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it is in the forbidden array.', 'jetpack' ), $domain ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 466 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 467 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 468 |  |  | 		// No .test or .local domains | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 469 |  | View Code Duplication | 		if ( preg_match( '#\.(test|local)$#i', $domain ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 470 |  |  | 			return new WP_Error( 'fail_domain_tld', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it uses an invalid top level domain.', 'jetpack' ), $domain ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 471 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 472 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 473 |  |  | 		// No WPCOM subdomains | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 474 |  | View Code Duplication | 		if ( preg_match( '#\.WordPress\.com$#i', $domain ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 475 |  |  | 			return new WP_Error( 'fail_subdomain_wpcom', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it is a subdomain of WordPress.com.', 'jetpack' ), $domain ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 476 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 477 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 478 |  |  | 		// If PHP was compiled without support for the Filter module (very edge case) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 479 |  |  | 		if ( ! function_exists( 'filter_var' ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 480 |  |  | 			// Just pass back true for now, and let wpcom sort it out. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 481 |  |  | 			return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 482 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 483 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 484 |  |  | 		return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 485 |  |  | 	} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 486 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 487 |  |  |  | 
            
                        
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: