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<?php /** * Wrapper for the ET_Core_OAuth library. * * @since 1.1.0 * @package ET\Core\API * * @property string consumer_key * @property string consumer_secret * @property string access_token * @property string access_token_secret */ class ET_Core_API_OAuthHelper { /** * URL for access token requests. * * @since 1.1.0 * @var string */ public $ACCESS_TOKEN_URL; /** * URL for authorizing applications. * * @since 1.1.0 * @var string */ public $AUTHORIZATION_URL; /** * URL for request token requests. * * @since 1.1.0 * @var string */ public $REQUEST_TOKEN_URL; /** * Instance URL, used by Salesforce. * * @since 4.9.0 * @var string */ public $INSTANCE_URL; // @phpcs:ignore ET.Sniffs.ValidVariableName.PropertyNotSnakeCase -- Use uppercase to be consistent with existing code. /** * The OAuth2 bearer for this instance. This is used as the value of the HTTP * `Authorization` header. The format is: `Bearer {$access_token}`. * * @since 1.1.0 * @var string */ private $bearer = null; /** * The OAuth Consumer object for this instance. * * @since 1.1.0 * @var ET_Core_LIB_OAuthConsumer */ public $consumer = null; /** * The OAuth Token object for this instance. * * @since 1.1.0 * @var ET_Core_LIB_OAuthToken */ public $token = null; /** * ET_Core_API_OAuth_Helper constructor. * * @since 1.1.0 * * @param array $data { * The consumer key/secret and access token/secret. * * @type string $consumer_key Consumer key. Required. * @type string $consumer_secret Consumer secret. Required. * @type string $access_token Previously obtained access token. Optional. * @type string $access_secret Previously obtained access secret. Optional. * } * @param array $urls { * The service's OAuth endpoints. * * @type string $request_token_url URL for request tokens. Required. * @type string $authorization_url URL for authorizations. Optional. * @type string $access_token_url URL for access tokens. Required. * } */ public function __construct( array $data, array $urls, $owner ) { $this->_initialize( $data, $urls ); $this->sha1_method = new ET_Core_LIB_OAuthHMACSHA1(); $this->consumer = new ET_Core_LIB_OAuthConsumer( $this->consumer_key, $this->consumer_secret ); if ( '' !== $this->access_token && '' !== $this->access_token_secret ) { $this->token = new ET_Core_LIB_OAuthToken( $this->access_token, $this->access_token_secret ); } else if ( empty( $this->access_token ) && ! empty( $this->access_token_secret ) ) { $this->bearer = "Bearer {$this->access_token_secret}"; } } /** * @internal * * @param array $data {@see self::__construct()} * @param array $urls {@see self::__construct()} */ private function _initialize( $data, $urls ) { $this->consumer_key = isset( $data['consumer_key'] ) ? $data['consumer_key'] : ''; $this->consumer_secret = isset( $data['consumer_secret'] ) ? $data['consumer_secret'] : ''; $this->access_token = isset( $data['access_key'] ) ? $data['access_key'] : ''; $this->access_token_secret = isset( $data['access_secret'] ) ? $data['access_secret'] : ''; $this->REQUEST_TOKEN_URL = $urls['request_token_url']; $this->AUTHORIZATION_URL = $urls['authorization_url']; $this->ACCESS_TOKEN_URL = $urls['access_token_url']; $this->REDIRECT_URL = isset( $urls['redirect_url'] ) ? $urls['redirect_url'] : ''; } protected function _get_oauth2_parameters( $args ) { et_core_nonce_verified_previously(); return wp_parse_args( $args, array( 'grant_type' => 'authorization_code', 'code' => sanitize_text_field( $_GET['code'] ), 'client_id' => $this->consumer_key, 'client_secret' => $this->consumer_secret, 'redirect_uri' => $this->REDIRECT_URL, ) ); } /** * @param \ET_Core_HTTPRequest $request * * @return \ET_Core_HTTPRequest */ protected function _prepare_oauth_request( $request ) { $parameters = array(); if ( is_array( $request->BODY ) && $request->BODY && ! $request->JSON_BODY ) { $parameters = $request->BODY; } $oauth_request = ET_Core_LIB_OAuthRequest::from_consumer_and_token( $this->consumer, $this->token, $request->METHOD, $request->URL, $parameters ); $oauth_request->sign_request( $this->sha1_method, $this->consumer, $this->token ); if ( 'GET' === $request->METHOD ) { $request->URL = $oauth_request->to_url(); } else if ( 'POST' === $request->METHOD ) { $request->URL = $request->JSON_BODY ? $oauth_request->to_url() : $oauth_request->get_normalized_http_url(); $request->BODY = $request->JSON_BODY ? json_encode( $request->BODY ) : $oauth_request->to_post_data(); } return $request; } /** * @param \ET_Core_HTTPRequest $request * * @return \ET_Core_HTTPRequest */ protected function _prepare_oauth2_request( $request ) { if ( null !== $this->bearer ) { $request->HEADERS['Authorization'] = $this->bearer; } if ( $request->JSON_BODY ) { return $request; } if ( is_array( $request->BODY ) && ! array_key_exists( 'code', $request->BODY ) ) { $request->URL = add_query_arg( $request->BODY, $request->URL ); $request->BODY = null; } return $request; } /** * Finish the OAuth2 authorization process if needed. */ public static function finish_oauth2_authorization() { et_core_nonce_verified_previously(); if ( ! isset( $_GET['state'] ) || 0 !== strpos( $_GET['state'], 'ET_Core' ) ) { return; } list( $_, $name, $account, $nonce ) = explode( '|', sanitize_text_field( rawurldecode( $_GET['state'] ) ) ); if ( ! $name || ! $account || ! $nonce ) { return; } $_GET['nonce'] = $nonce; et_core_security_check( 'manage_options', 'et_core_api_service_oauth2', 'nonce', '_GET' ); $providers = et_core_api_email_providers(); if ( ! $providers->account_exists( $name, $account ) ) { et_core_die(); } if ( ! $provider = $providers->get( $name, $account, 'ET_Core' ) ) { et_core_die(); } $result = $provider->fetch_subscriber_lists(); // Display the authorization results echo et_core_esc_previously( ET_Bloom::generate_modal_warning( $result ) ); } /** * Prepare a request for an access token. * * @param array $args { * For OAuth 1.0 & 1.0a: * * @type string $verifier OAuth verifier token. Optional. * * For OAuth 2.0: * * @type string $code The code returned when the user was redirected back to their dashboard. * @type string $grant_type The desired grant type, as per the OAuth 2.0 spec. * @type string $redirect_uri The redirect URL from the original authorization request. * } * * @return ET_Core_HTTPRequest */ public function prepare_access_token_request( $args = array() ) { et_core_nonce_verified_previously(); $oauth2 = ! empty( $_GET['code'] ); $request = new ET_Core_HTTPRequest( $this->ACCESS_TOKEN_URL, 'POST', '', true ); $request->BODY = $oauth2 ? $this->_get_oauth2_parameters( $args ) : $args; return $this->prepare_oauth_request( $request, $oauth2 ); } /** * Prepare an OAuth 1.0a or 2.0 request. * * @param ET_Core_HTTPRequest $request * @param bool $oauth2 * * @return \ET_Core_HTTPRequest */ function prepare_oauth_request( $request, $oauth2 = false ) { return $oauth2 ? $this->_prepare_oauth2_request( $request ) : $this->_prepare_oauth_request( $request ); } /** * Process a response to an OAuth access token request and retrieve the access token if auth was successful. * * @param \ET_Core_HTTPResponse $response */ public function process_authentication_response( $response, $json = true ) { if ( $response->ERROR ) { return; } $response = $json ? $response->DATA : wp_parse_args( $response->DATA ); // Salesforce returns an `instance_url` data in the auth response. if ( isset( $response['instance_url'] ) ) { $this->INSTANCE_URL = esc_url( $response['instance_url'] ); // @phpcs:ignore ET.Sniffs.ValidVariableName.UsedPropertyNotSnakeCase -- Use uppercase to be consistent with existing code. } if ( isset( $response['oauth_token'], $response['oauth_token_secret'] ) ) { // OAuth 1.0a $token = sanitize_text_field( $response['oauth_token'] ); $secret = sanitize_text_field( $response['oauth_token_secret'] ); $this->token = new ET_Core_LIB_OAuthToken( $token, $secret ); } elseif ( isset( $response['access_token'] ) ) { // OAuth 2.0 $this->token = new ET_Core_LIB_OAuthToken( '', sanitize_text_field( $response['access_token'] ) ); if ( isset( $response['refresh_token'] ) ) { $this->token->refresh_token = sanitize_text_field( $response['refresh_token'] ); } } } }