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<?php |
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|
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// Do not allow the file to be called directly. |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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/** |
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* This class is used as a base for communicating with the Patchstack API. |
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*/ |
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class P_Api extends P_Core { |
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|
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/** |
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* @var integer The current blog id. |
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*/ |
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public $blog_id; |
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|
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/** |
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* Add the actions required for the API. |
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* |
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* @param Patchstack $core |
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* @return void |
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*/ |
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public function __construct( $core ) { |
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parent::__construct( $core ); |
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$this->blog_id = get_current_blog_id(); |
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add_action( 'patchstack_update_license_status', array( $this, 'update_license_status' ) ); |
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add_action( 'patchstack_send_ping', array( $this, 'ping' ) ); |
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} |
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|
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/** |
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* Get the API token. |
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* |
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* @param string $clientid The API client ID. |
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* @param string $secretkey The API secret key. |
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* @param boolean $fresh Whether or not to get a fresh token. |
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* @return null|string |
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*/ |
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public function get_access_token( $clientid = '', $secretkey = '', $fresh = false ) { |
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// Get current access token, if it exists. |
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$token_data = $this->get_blog_option( $this->blog_id, 'patchstack_api_token', false ); |
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|
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// If we do not need a fresh token, get the current one if it's not expired. |
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if ( ! $fresh && isset( $token_data['token'] ) && ! $this->has_expired( $token_data['expiresin'] ) ) { |
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return $token_data['token']; |
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} |
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|
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// Call API and get the new access token. |
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$response = $this->fetch_access_token( $clientid, $secretkey ); |
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if ( $response && $response->result == 'success' ) { |
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$this->update_blog_option( |
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$this->blog_id, |
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'patchstack_api_token', |
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array( |
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'token' => $response->message, |
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'expiresin' => $response->expiresin, |
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) |
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); |
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return $response->message; |
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} |
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|
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// If we reach this, it means we were not able to get the access token. |
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$this->update_blog_option( $this->blog_id, 'patchstack_api_token', '' ); |
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return null; |
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} |
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|
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/** |
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* Fetch the API Token from API Server. |
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* |
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* @param string $clientid The API client ID. |
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* @param string $secretkey The API secret key. |
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* @return string|array|object |
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*/ |
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public function fetch_access_token( $clientid = '', $secretkey = '' ) { |
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// Skeleton for the response data. |
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$response_data = (object) array( |
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'result' => '', |
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'message' => '', |
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'expiresin' => '', |
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); |
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|
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// Determine if the license id/key is set. |
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$client_id = $this->get_blog_option( $this->blog_id, 'patchstack_clientid', $clientid ); |
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|
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// Decrypt the secret key, if it is encrypted. |
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$client_secret = $this->get_blog_option( $this->blog_id, 'patchstack_secretkey', $secretkey ); |
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$client_nonce = $this->get_blog_option( $this->blog_id, 'patchstack_secretkey_nonce', false ); |
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if ( $client_nonce ) { |
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$client_secret = $this->decrypt( $client_secret, $client_nonce ); |
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} |
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|
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// Make sure these values are set. |
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if ( empty( $client_id ) || empty( $client_secret ) ) { |
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$response_data->result = 'failed'; |
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$response_data->message = __( 'API keys missing! Unable to obtain an access token.', 'patchstack' ); |
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return $response_data; |
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} |
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|
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// Send a request to our server to obtain the access token. |
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$response = wp_remote_post( |
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$this->plugin->auth_url . '/oauth/token', |
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array( |
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'method' => 'POST', |
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'timeout' => 60, |
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'redirection' => 5, |
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'httpversion' => '1.0', |
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'blocking' => true, |
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'headers' => array(), |
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'body' => array( |
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'client_id' => $client_id, |
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'client_secret' => $client_secret, |
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'grant_type' => 'client_credentials', |
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), |
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'cookies' => array(), |
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) |
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); |
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|
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// Stop if we received an error from the API. |
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if ( is_wp_error( $response ) ) { |
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$response_data->result = 'failed'; |
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$response_data->message = __( 'Unexpected error! Unable to obtain an access token.', 'patchstack' ) . $response->get_error_message(); |
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return $response_data; |
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} |
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|
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// Parse the result. |
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$result = json_decode( wp_remote_retrieve_body( $response ) ); |
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if ( isset( $result->access_token ) ) { |
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$response_data->result = 'success'; |
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$response_data->message = $result->access_token; |
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$response_data->expiresin = $result->expires_in; |
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|
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// We need to know when the token expires. |
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// Defer to 'expires' if it is provided instead. |
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if ( isset( $result->expires_in ) ) { |
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if ( ! is_numeric( $result->expires_in ) ) { |
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$response_data->message = 'expires_in value must be an integer'; |
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return $response_data; |
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} |
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$response_data->expiresin = $result->expires_in != 0 ? time() + $result->expires_in : 0; |
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} |
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|
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return $response_data; |
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} elseif ( isset( $result->error ) ) { |
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$response_data->result = $result->error; |
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$response_data->message = __( 'Unexpected error! Unable to obtain an access token.', 'patchstack' ) . $result->message; |
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return $response_data; |
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} |
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} |
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|
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/** |
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* Checks if the API token has expired. |
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* |
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* @param integer $expiresin API token expiry. |
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* @return boolean If the token has expired. |
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*/ |
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public function has_expired( $expiresin ) { |
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return ( $expiresin < ( time() + 30 ) ); |
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} |
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|
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/** |
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* Retrieve the status of a license. |
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* |
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* @return void|array |
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*/ |
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public function update_license_status() { |
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// Get current license status. |
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$response = $this->send_request( '/api/license/verify', 'GET' ); |
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|
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// Update the representing options. |
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if ( isset( $response['expires_at'] ) ) { |
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$this->update_blog_option( $this->blog_id, 'patchstack_license_expiry', $response['expires_at'] ); |
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} |
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|
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if ( isset( $response['free'] ) ) { |
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$this->update_blog_option( $this->blog_id, 'patchstack_license_free', $response['free'] == false ? 0 : 1 ); |
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|
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if ( $response['free'] == true ) { |
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$this->update_blog_option( $this->blog_id, 'patchstack_show_settings', 0 ); |
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} else { |
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$this->send_header_request(); |
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} |
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} |
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|
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if ( isset( $response['active'] ) && $response['active'] == true ) { |
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$this->update_blog_option( $this->blog_id, 'patchstack_license_activated', true ); |
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} |
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|
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if ( isset( $response['class'] ) ) { |
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$this->update_blog_option( $this->blog_id, 'patchstack_subscription_class', $response['class'] ); |
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$this->update_blog_option( $this->blog_id, 'patchstack_last_license_check', time() ); |
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} |
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|
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return $response; |
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} |
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|
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/** |
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* Send a request to the API with optionally POST data. |
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* |
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* @param string $url |
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* @param string $request |
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* @param array $data |
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* @return void|array If successful array, otherwise void. |
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*/ |
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public function send_request( $url, $request, $data = array() ) { |
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// Attempt to get the access token. |
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$token = $this->get_access_token(); |
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if ( empty( $token ) ) { |
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return; |
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} |
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|
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// Send the remote request using the WordPress built-in method. |
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$response = wp_remote_request( |
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$this->plugin->api_url . $url, |
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array( |
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'method' => $request, |
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'timeout' => 60, |
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'redirection' => 5, |
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'httpversion' => '1.0', |
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'blocking' => true, |
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'headers' => array( |
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'Authorization' => 'Bearer ' . $token, |
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'LicenseID' => $this->get_blog_option( $this->blog_id, 'patchstack_clientid', 0 ), |
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'Source-Host' => get_site_url(), |
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), |
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'body' => $data, |
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'cookies' => array(), |
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) |
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); |
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|
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// Check error or status code. |
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if ( is_wp_error( $response ) || wp_remote_retrieve_response_code( $response ) != 200 ) { |
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$this->update_blog_option( $this->blog_id, 'patchstack_api_token', '' ); |
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return; |
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} |
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|
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return json_decode( wp_remote_retrieve_body( $response ), true ); |
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} |
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|
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/** |
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* Send a request to our API for the IP address header. |
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*/ |
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public function send_header_request() |
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{ |
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$header = get_option( 'patchstack_firewall_ip_header', '' ); |
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$computed = get_option( 'patchstack_ip_header_computed', 0 ); |
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|
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if ( $header == '' && ! $computed ) { |
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// Create an OTT token. |
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$ott = md5( wp_generate_password( 32, true, true ) ); |
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update_option( 'patchstack_ott_action', $ott ); |
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|
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// Tell our API. |
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wp_remote_request( |
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$this->plugin->api_url . '/api/header', |
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array( |
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'method' => 'POST', |
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'timeout' => 60, |
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'redirection' => 5, |
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'httpversion' => '1.0', |
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'blocking' => true, |
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'headers' => array( |
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'Source-Host' => get_site_url(), |
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), |
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'body' => array( |
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'token' => $ott, |
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'url' => get_site_url() |
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), |
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'cookies' => array(), |
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) |
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); |
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} |
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} |
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|
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/** |
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* Get the firewall rules. |
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* |
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* @return array The firewall rules. |
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*/ |
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public function post_firewall_rule_json() { |
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// If the request is coming from the API, fetch fresh rules. |
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if ( isset( $_POST['webarx_refresh_rules'] ) ) { |
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return $this->send_request( '/api/get-rules/2?bypass=cache', 'POST' ); |
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} |
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|
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return $this->send_request( '/api/get-rules/2', 'POST' ); |
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} |
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|
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/** |
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* Get the .htaccess rules. |
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* |
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* @param array $settings The settings on which .htaccess rules to get. |
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* @return array The .htaccess rules. |
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*/ |
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public function post_firewall_rule( $settings ) { |
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return $this->send_request( '/api/rules', 'POST', $settings ); |
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} |
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|
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/** |
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* Get the .htaccess firewall rules. |
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* |
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* @return array The .htaccess rules. |
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*/ |
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public function post_firewall_htaccess_rule() { |
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return $this->send_request( '/api/rules/htaccess', 'POST' ); |
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} |
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|
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/** |
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* Send the firewall logs to the API. |
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* |
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* @param array $logs |
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* @return array |
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*/ |
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public function upload_firewall_logs( $logs ) { |
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return $this->send_request( '/api/logs/log', 'POST', $logs ); |
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} |
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|
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/** |
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* Send the activity logs to the server. |
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* |
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* @param array $logs |
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* @return array |
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*/ |
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public function upload_activity_logs( $logs ) { |
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return $this->send_request( '/api/activity/log', 'POST', $logs ); |
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} |
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|
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/** |
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* Send WordPress core, theme, plugins versions and information to the API. |
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* |
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* @param array $software |
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* @return array |
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*/ |
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public function upload_software( $software ) { |
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return $this->send_request( '/api/sw/json', 'POST', $software ); |
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} |
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|
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/** |
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* Update the firewall status. |
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* |
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* @param array $status |
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* @return array |
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*/ |
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public function update_firewall_status( $status ) { |
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if ( $this->get_option( 'patchstack_license_free', 0 ) == 1 ) { |
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return; |
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} |
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|
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return $this->send_request( '/api/firewall/update/status', 'POST', $status ); |
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} |
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|
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/** |
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* Update the URL on the API. |
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* |
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* @param array $url The current URL of the site. |
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* @return array |
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*/ |
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public function update_url( $url ) { |
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return $this->send_request( '/api/plugin/update/url', 'POST', $url ); |
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} |
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|
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/** |
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* Send list of sites and get the id and secret key in response. |
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* |
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* @param array $sites |
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* @return array |
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*/ |
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public function get_site_licenses( $sites ) { |
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return $this->send_request( '/api/multisite-keys', 'POST', $sites ); |
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} |
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|
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/** |
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* Send a ping to the Patchstack API every 3 hours to make sure that the plugin is still running. |
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* |
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* @return void |
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*/ |
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public function ping() { |
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$this->send_request( '/api/ping', 'POST', array( 'firewall' => $this->get_option( 'patchstack_basic_firewall' ) == 1 ? 1 : 0 ) ); |
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} |
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} |
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|
