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| 1 | <?php |
| 2 | /** |
| 3 | * WP_REST_WPCOM_Smart_Dictation_Client_Secret file. |
| 4 | * |
| 5 | * @package automattic/jetpack-mu-wpcom |
| 6 | */ |
| 7 | |
| 8 | namespace A8C\WPCOM_DICTATION; |
| 9 | |
| 10 | use Automattic\Jetpack\Connection\Client; |
| 11 | |
| 12 | /** |
| 13 | * Class WP_REST_WPCOM_Smart_Dictation_Client_Secret. |
| 14 | * |
| 15 | * Proxies dictation client secret requests to the WPCOM platform endpoint. |
| 16 | */ |
| 17 | class WP_REST_WPCOM_Smart_Dictation_Client_Secret extends \WP_REST_Controller { |
| 18 | |
| 19 | /** |
| 20 | * Session keys supported by the WPCOM endpoint. |
| 21 | */ |
| 22 | private const SUPPORTED_SESSION_KEYS = array( 'instructions' ); |
| 23 | |
| 24 | /** |
| 25 | * WP_REST_WPCOM_Smart_Dictation_Client_Secret constructor. |
| 26 | */ |
| 27 | public function __construct() { |
| 28 | $this->namespace = 'wpcom/v2'; |
| 29 | $this->rest_base = '/dictation-client-secret'; |
| 30 | } |
| 31 | |
| 32 | /** |
| 33 | * Register available routes. |
| 34 | */ |
| 35 | public function register_rest_route() { |
| 36 | register_rest_route( |
| 37 | $this->namespace, |
| 38 | $this->rest_base, |
| 39 | array( |
| 40 | 'methods' => \WP_REST_Server::CREATABLE, |
| 41 | 'callback' => array( $this, 'create_client_secret' ), |
| 42 | 'permission_callback' => 'is_user_logged_in', |
| 43 | 'args' => array( |
| 44 | 'session' => array( |
| 45 | 'type' => 'object', |
| 46 | 'required' => false, |
| 47 | 'validate_callback' => array( $this, 'validate_session' ), |
| 48 | ), |
| 49 | ), |
| 50 | ) |
| 51 | ); |
| 52 | |
| 53 | register_rest_route( |
| 54 | $this->namespace, |
| 55 | $this->rest_base . '/settle', |
| 56 | array( |
| 57 | 'methods' => \WP_REST_Server::CREATABLE, |
| 58 | 'callback' => array( $this, 'settle_session' ), |
| 59 | 'permission_callback' => 'is_user_logged_in', |
| 60 | ) |
| 61 | ); |
| 62 | |
| 63 | register_rest_route( |
| 64 | $this->namespace, |
| 65 | $this->rest_base . '/remaining-time', |
| 66 | array( |
| 67 | 'methods' => \WP_REST_Server::READABLE, |
| 68 | 'callback' => array( $this, 'get_remaining_time' ), |
| 69 | 'permission_callback' => 'is_user_logged_in', |
| 70 | ) |
| 71 | ); |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * Proxy the client secret request to the WPCOM platform endpoint. |
| 76 | * |
| 77 | * @param \WP_REST_Request $request The request sent to the API. |
| 78 | * @return \WP_REST_Response|\WP_Error |
| 79 | */ |
| 80 | public function create_client_secret( \WP_REST_Request $request ) { |
| 81 | $session = $request->get_param( 'session' ); |
| 82 | $payload = array(); |
| 83 | |
| 84 | if ( $request->has_param( 'session' ) ) { |
| 85 | $validation = $this->validate_session( $session ); |
| 86 | if ( is_wp_error( $validation ) ) { |
| 87 | return $validation; |
| 88 | } |
| 89 | |
| 90 | if ( is_object( $session ) ) { |
| 91 | $session = get_object_vars( $session ); |
| 92 | } |
| 93 | |
| 94 | $payload['session'] = $session; |
| 95 | } |
| 96 | |
| 97 | return $this->proxy_wpcom_request( '/dictation-client-secret', 'POST', $payload ); |
| 98 | } |
| 99 | |
| 100 | /** |
| 101 | * Proxy the current session settlement request to the WPCOM platform endpoint. |
| 102 | * |
| 103 | * @return \WP_REST_Response|\WP_Error |
| 104 | */ |
| 105 | public function settle_session() { |
| 106 | return $this->proxy_wpcom_request( '/dictation-client-secret/settle', 'POST' ); |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Proxy the remaining dictation time request to the WPCOM platform endpoint. |
| 111 | * |
| 112 | * @return \WP_REST_Response|\WP_Error |
| 113 | */ |
| 114 | public function get_remaining_time() { |
| 115 | return $this->proxy_wpcom_request( '/dictation-client-secret/remaining-time' ); |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Validate optional session data. |
| 120 | * |
| 121 | * @param mixed $session Session data. |
| 122 | * @return true|\WP_Error |
| 123 | */ |
| 124 | public function validate_session( $session ) { |
| 125 | if ( null === $session ) { |
| 126 | return true; |
| 127 | } |
| 128 | |
| 129 | if ( is_object( $session ) ) { |
| 130 | $session = get_object_vars( $session ); |
| 131 | } |
| 132 | |
| 133 | if ( ! is_array( $session ) ) { |
| 134 | return new \WP_Error( 'rest_invalid_param', 'session must be an object.' ); |
| 135 | } |
| 136 | |
| 137 | $unsupported_keys = array_diff( array_keys( $session ), self::SUPPORTED_SESSION_KEYS ); |
| 138 | if ( ! empty( $unsupported_keys ) ) { |
| 139 | return new \WP_Error( 'rest_invalid_param', 'session contains unsupported fields.' ); |
| 140 | } |
| 141 | |
| 142 | if ( isset( $session['instructions'] ) && ! is_string( $session['instructions'] ) ) { |
| 143 | return new \WP_Error( 'rest_invalid_param', 'session.instructions must be a string.' ); |
| 144 | } |
| 145 | |
| 146 | return true; |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Proxy a request to the WPCOM platform endpoint. |
| 151 | * |
| 152 | * @param string $path The WPCOM endpoint path. |
| 153 | * @param string $method The request method. |
| 154 | * @param array|null $data Optional request body data. |
| 155 | * @return \WP_REST_Response|\WP_Error |
| 156 | */ |
| 157 | private function proxy_wpcom_request( $path, $method = 'GET', $data = null ) { |
| 158 | $request_args = array( 'method' => $method ); |
| 159 | |
| 160 | if ( null === $data ) { |
| 161 | $body = Client::wpcom_json_api_request_as_user( |
| 162 | $path, |
| 163 | '2', |
| 164 | $request_args |
| 165 | ); |
| 166 | } else { |
| 167 | $body = Client::wpcom_json_api_request_as_user( |
| 168 | $path, |
| 169 | '2', |
| 170 | $request_args, |
| 171 | $data |
| 172 | ); |
| 173 | } |
| 174 | |
| 175 | if ( is_wp_error( $body ) ) { |
| 176 | return $body; |
| 177 | } |
| 178 | |
| 179 | $response = json_decode( wp_remote_retrieve_body( $body ) ); |
| 180 | $status = wp_remote_retrieve_response_code( $body ); |
| 181 | |
| 182 | return new \WP_REST_Response( $response, $status ? $status : 200 ); |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Backwards-compatible alias for the original callback name. |
| 187 | * |
| 188 | * @param \WP_REST_Request $request The request sent to the API. |
| 189 | * @return \WP_REST_Response|\WP_Error |
| 190 | */ |
| 191 | public function get_client_secret( \WP_REST_Request $request ) { |
| 192 | return $this->create_client_secret( $request ); |
| 193 | } |
| 194 | } |