initial

wp-content/plugins/gravitysmtp/includes/routing/handlers/class-primary-backup-handler.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace Gravity_Forms\Gravity_SMTP\Routing\Handlers;
+
+use Gravity_Forms\Gravity_SMTP\Connectors\Connector_Base;
+use Gravity_Forms\Gravity_SMTP\Data_Store\Data_Store_Router;
+use Gravity_Forms\Gravity_SMTP\Enums\Connector_Status_Enum;
+use Gravity_Forms\Gravity_SMTP\Logging\Debug\Debug_Logger;
+
+class Primary_Backup_Handler implements Routing_Handler {
+
+	private static $primary_attempted = false;
+	private static $backup_attempted  = false;
+
+	/**
+	 * @var Data_Store_Router
+	 */
+	protected $data_router;
+
+	/**
+	 * @var Debug_Logger
+	 */
+	protected $logger;
+
+	public function __construct( $data_router, $logger ) {
+		$this->data_router = $data_router;
+		$this->logger = $logger;
+	}
+
+	private function error_prefix() {
+		return sprintf( '%s:: ', str_replace( __NAMESPACE__, '', __CLASS__ ) );
+	}
+
+	public function reset() {
+		self::$primary_attempted = false;
+		self::$backup_attempted  = false;
+	}
+
+	public function handle( $current_connector, $email_data ) {
+
+		// A backup was already attempted; no more connections to check, return false.
+		if ( self::$backup_attempted ) {
+			$this->logger->log_warning( $this->error_prefix() . __( 'Primary and Backup integrations failed to send. Aborting email send.', 'gravitysmtp' ) );
+			return false;
+		}
+
+		// We've tried the primary connection, now look for a backup connection.
+		if ( self::$primary_attempted ) {
+			self::$backup_attempted = true;
+			$type                   = $this->data_router->get_connector_status_of_type( Connector_Status_Enum::BACKUP );
+
+			if ( ! $type ) {
+				$this->logger->log_warning( $this->error_prefix() . __( 'Backup integration not set, aborting email send.', 'gravitysmtp' ) );
+				return false;
+			}
+
+			$enabled = $this->data_router->get_setting( $type, Connector_Base::SETTING_ENABLED, false );
+
+			/* translators: %1$s: integration type */
+			$this->logger->log_debug( $this->error_prefix() . sprintf( __( 'Secondary integration identified: %1$s', 'gravitysmtp' ), $type ) );
+
+			if ( $enabled ) {
+				return $type;
+			}
+
+			$this->logger->log_debug( $this->error_prefix() . __( 'Secondary integration not enabled. Skipping.', 'gravitysmtp' ) );
+
+			return false;
+		}
+
+		// This is the first call, so attempt to use the primary connection.
+		self::$primary_attempted = true;
+		$type                    = $this->data_router->get_connector_status_of_type( Connector_Status_Enum::PRIMARY );
+
+		if ( ! $type ) {
+			$this->logger->log_warning( $this->error_prefix() . __( 'Primary integration not set, checking for Backup integration.', 'gravitysmtp' ) );
+			return $this->handle( $type, $email_data );
+		}
+
+		$enabled = $this->data_router->get_setting( $type, Connector_Base::SETTING_ENABLED, false );
+
+		/* translators: %1$s: integration type */
+		$this->logger->log_debug( $this->error_prefix() . sprintf( __( 'Primary integration identified: %1$s', 'gravitysmtp' ), $type ) );
+
+		// Primary connection not enabled; immediately try backup connection.
+		if ( ! $enabled ) {
+			$this->logger->log_warning( $this->error_prefix() . __( 'Primary integration not enabled, moving on to Backup integration.', 'gravitysmtp' ) );
+			return $this->handle( $type, $email_data );
+		}
+
+		// Primary connection found and is enabled.
+		return $type;
+	}
+
+}