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<?php |
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|
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namespace WordProof\SDK\Controllers; |
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|
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use WordProof\SDK\Helpers\OptionsHelper; |
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use WordProof\SDK\Helpers\RestApiHelper; |
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use WordProof\SDK\Helpers\PostMetaHelper; |
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use WordProof\SDK\Helpers\SchemaHelper; |
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use WordProof\SDK\Helpers\SettingsHelper; |
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use WordProof\SDK\Helpers\AuthenticationHelper; |
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use WordProof\SDK\Helpers\StringHelper; |
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use WordProof\SDK\Support\Authentication; |
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|
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class RestApiController |
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{ |
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/** |
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* Registers the rest api endpoints. |
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* |
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* @action rest_api_init |
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* @throws \Exception |
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*/ |
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public function init() |
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{ |
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register_rest_route(RestApiHelper::getNamespace(), RestApiHelper::endpoint('authenticate'), [ |
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'methods' => 'POST', |
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'callback' => [$this, 'authenticate'], |
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'permission_callback' => [$this, 'canPublishPermission'] |
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]); |
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|
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register_rest_route(RestApiHelper::getNamespace(), RestApiHelper::endpoint('webhook'), [ |
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'methods' => 'POST', |
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'callback' => [$this, 'webhook'], |
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'permission_callback' => [$this, 'isValidWebhookRequest'] |
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]); |
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|
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register_rest_route(RestApiHelper::getNamespace(), RestApiHelper::endpoint('hashInput'), [ |
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'methods' => 'GET', |
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'callback' => [$this, 'hashInput'], |
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'permission_callback' => function () { |
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return true; |
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}, |
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]); |
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|
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register_rest_route(RestApiHelper::getNamespace(), RestApiHelper::endpoint('timestamp'), [ |
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'methods' => 'POST', |
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'callback' => [$this, 'timestamp'], |
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'permission_callback' => [$this, 'canPublishPermission'], |
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]); |
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|
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register_rest_route(RestApiHelper::getNamespace(), RestApiHelper::endpoint('timestamp.transaction.latest'), [ |
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'methods' => 'GET', |
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'callback' => [$this, 'showLatestTimestampTransaction'], |
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'permission_callback' => [$this, 'canPublishPermission'], |
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]); |
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|
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register_rest_route(RestApiHelper::getNamespace(), RestApiHelper::endpoint('settings'), [ |
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'methods' => 'GET', |
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'callback' => [$this, 'settings'], |
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'permission_callback' => [$this, 'canPublishPermission'], |
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]); |
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|
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register_rest_route(RestApiHelper::getNamespace(), RestApiHelper::endpoint('saveSettings'), [ |
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'methods' => 'POST', |
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'callback' => [$this, 'saveSettings'], |
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'permission_callback' => [$this, 'canPublishPermission'], |
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]); |
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|
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register_rest_route(RestApiHelper::getNamespace(), RestApiHelper::endpoint('authentication'), [ |
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'methods' => 'GET', |
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'callback' => [$this, 'authentication'], |
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'permission_callback' => [$this, 'canPublishPermission'], |
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]); |
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|
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register_rest_route(RestApiHelper::getNamespace(), RestApiHelper::endpoint('authentication.destroy'), [ |
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'methods' => 'POST', |
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'callback' => [$this, 'destroyAuthentication'], |
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'permission_callback' => [$this, 'canPublishPermission'], |
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]); |
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} |
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|
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/** |
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* Returns an object containing the settings. |
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* |
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* @return \WP_REST_Response Returns the settings. |
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*/ |
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public function settings() |
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{ |
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$data = SettingsHelper::get(); |
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$data->status = 200; |
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|
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return new \WP_REST_Response($data, $data->status); |
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} |
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|
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/** |
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* Save the settings. |
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* |
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* @return \WP_REST_Response Returns the settings. |
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*/ |
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public function saveSettings(\WP_REST_Request $request) |
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{ |
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$data = $request->get_params(); |
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|
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$settings = $data['settings']; |
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$snakeCaseSettings = []; |
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foreach ($settings as $key=> $value) { |
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$key = StringHelper::toUnderscore($key); |
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$snakeCaseSettings[$key] = $value; |
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} |
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|
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OptionsHelper::set('settings', $snakeCaseSettings); |
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|
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$data = (object)[]; |
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$data->status = 200; |
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|
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return new \WP_REST_Response($data, $data->status); |
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} |
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|
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/** |
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* Returns if the user is authenticated. |
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* |
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* @return \WP_REST_Response Returns if the user is authenticated. |
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*/ |
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public function authentication() |
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{ |
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$data = (object)[ |
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'is_authenticated' => AuthenticationHelper::isAuthenticated(), |
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'status' => 200 |
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]; |
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|
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return new \WP_REST_Response($data, $data->status); |
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} |
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|
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/** |
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* Logout the user and return if the user is authenticated. |
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* |
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* @return \WP_REST_Response Returns if the user is authenticated. |
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*/ |
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public function destroyAuthentication() |
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{ |
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AuthenticationHelper::logout(); |
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|
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return $this->authentication(); |
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} |
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|
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/** |
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* Send a post request to WordProof to timestamp a post. |
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* |
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* @param \WP_REST_Request $request The Rest Request. |
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* @return bool|void Returns if the request was successful. |
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*/ |
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public function timestamp(\WP_REST_Request $request) |
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{ |
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$data = $request->get_params(); |
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$postId = intval($data['id']); |
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|
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return TimestampController::timestamp($postId); |
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} |
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|
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public function showLatestTimestampTransaction(\WP_REST_Request $request) |
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{ |
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$data = $request->get_params(); |
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$postId = intval($data['id']); |
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|
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$transactions = PostMetaHelper::get($postId, '_wordproof_blockchain_transaction', false); |
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$transaction = array_pop($transactions); |
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|
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return new \WP_REST_Response((object)$transaction); |
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} |
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|
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/** |
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* Returns the hash input of a post. |
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* |
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* @param \WP_REST_Request $request The Rest Request. |
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* @return \WP_REST_Response The hash input of a post. |
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*/ |
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public function hashInput(\WP_REST_Request $request) |
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{ |
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$data = $request->get_params(); |
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|
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$postId = intval($data['id']); |
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$hash = sanitize_text_field($data['hash']); |
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|
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$hashInput = PostMetaHelper::get($postId, '_wordproof_hash_input_' . $hash); |
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return new \WP_REST_Response((object)$hashInput); |
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} |
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|
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/** |
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* Retrieves the access token when the code and state are retrieved in the frontend. |
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* |
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* @throws \Exception |
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*/ |
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public function authenticate(\WP_REST_Request $request) |
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{ |
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$state = sanitize_text_field($request->get_param('state')); |
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$code = sanitize_text_field($request->get_param('code')); |
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return Authentication::token($state, $code); |
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} |
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|
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/** |
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* Handles webhooks sent by WordProof. |
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* |
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* @param \WP_REST_Request $request The Rest Request. |
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* @return bool|null|\WP_REST_Response|void The value returned by the action undertaken. |
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* |
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* TODO: Improve |
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*/ |
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public function webhook(\WP_REST_Request $request) |
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{ |
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$response = json_decode($request->get_body()); |
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|
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/** |
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* Handle webhooks with type and data |
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*/ |
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if (isset($response->type) && isset($response->data)) { |
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switch ($response->type) { |
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case 'source_settings': |
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return OptionsHelper::set('settings', $response->data); |
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case 'ping': |
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$data = (object)['status' => 200, 'source_id' => OptionsHelper::sourceId()]; |
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return new \WP_REST_Response($data, $data->status); |
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case 'logout': |
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AuthenticationHelper::logout(); |
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break; |
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case 'dump_item': |
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|
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$key = '_wordproof_hash_input_' . $response->data->hash; |
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PostMetaHelper::update($response->data->uid, $key, json_decode($response->data->hash_input)); |
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|
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$this->setBlockchainTransaction($response->data); |
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|
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break; |
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default: |
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break; |
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} |
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} |
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|
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/** |
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* Handle timestamping webhooks without type |
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*/ |
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if (isset($response->uid) && isset($response->schema)) { |
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$this->setBlockchainTransaction($response); |
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} |
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} |
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|
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/** |
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* @param $response |
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* |
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* TODO: Improve |
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*/ |
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private function setBlockchainTransaction($response) |
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{ |
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$postId = intval($response->uid); |
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|
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$blockchainTransaction = SchemaHelper::getBlockchainTransaction($response); |
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PostMetaHelper::add($postId, '_wordproof_blockchain_transaction', $blockchainTransaction); |
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|
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$schema = SchemaHelper::getSchema($postId); |
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PostMetaHelper::update($postId, '_wordproof_schema', $schema); |
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} |
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|
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/** |
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* Checks if the user has permission to publish a post. |
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* |
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* @return bool Returns if a user has permission to publish. |
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*/ |
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public function canPublishPermission() |
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{ |
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return current_user_can('publish_posts') && current_user_can('publish_pages'); |
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} |
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|
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/** |
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* Validates if the webhook is valid and signed with the correct secret. |
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* |
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* @param \WP_REST_Request $request The Rest Request. |
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* @return bool If the webhook can be accepted. |
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*/ |
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public static function isValidWebhookRequest(\WP_REST_Request $request) |
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{ |
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$hashedToken = hash('sha256', OptionsHelper::accessToken()); |
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$hmac = hash_hmac('sha256', $request->get_body(), $hashedToken); |
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|
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return $request->get_header('signature') === $hmac; |
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} |
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} |
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|