Click here for the steps to enable curl.'; return wp_json_encode( array( 'status' => 'ERROR', 'message' => $message, ) ); } } /** * This function returns current timestamp * * @return string */ public function get_timestamp() { $current_time_in_millis = round( microtime( true ) * 1000 ); $current_time_in_millis = number_format( $current_time_in_millis, 0, '', '' ); return $current_time_in_millis; } /** * This function perform remote calls. * * @param string $url url. * @param object $fields fields. * @param array $http_header_array header. * @return mixed */ public function mo2f_http_request( $url, $fields, $http_header_array = array( 'Content-Type' => 'application/json', 'charset' => 'UTF-8', 'Authorization' => 'Basic', ) ) { if ( gettype( $fields ) !== 'string' ) { $fields = wp_json_encode( $fields ); } $args = array( 'method' => 'POST', 'body' => $fields, 'timeout' => '10', 'redirection' => '5', 'sslverify' => true, 'httpversion' => '1.0', 'blocking' => true, 'headers' => $http_header_array, ); $response = self::mo2f_wp_remote_post( $url, $args ); return $response; } /** * This function returns headers. * * @return object */ public function get_http_header_array() { $customer_key = get_option( 'mo2f_customerKey' ); $api_key = get_option( 'mo2f_api_key' ); /* Current time in milliseconds since midnight, January 1, 1970 UTC. */ $current_time_in_millis = self::get_timestamp(); /* Creating the Hash using SHA-512 algorithm */ $string_to_hash = $customer_key . $current_time_in_millis . $api_key; $hash_value = hash( 'sha512', $string_to_hash ); $headers = array( 'Content-Type' => 'application/json', 'Customer-Key' => $customer_key, 'Timestamp' => $current_time_in_millis, 'Authorization' => $hash_value, ); return $headers; } } }