installed plugin W3 Total Cache version 2.3.2

wp-content/plugins/w3-total-cache/Enterprise_SnsBase.php

@@ -0,0 +1,84 @@
+<?php
+namespace W3TC;
+
+if ( !defined( 'W3TC_SKIPLIB_AWS' ) ) {
+	require_once W3TC_DIR . '/vendor/autoload.php';
+}
+
+
+
+/**
+ * Base class for Sns communication
+ */
+class Enterprise_SnsBase {
+	/**
+	 * PHP5-style constructor
+	 */
+	function __construct() {
+		$this->_config = Dispatcher::config();
+
+		$this->_region = $this->_config->get_string( 'cluster.messagebus.sns.region' );
+		$this->_topic_arn = $this->_config->get_string( 'cluster.messagebus.sns.topic_arn' );
+		$this->_api_key = $this->_config->get_string( 'cluster.messagebus.sns.api_key' );
+		$this->_api_secret = $this->_config->get_string( 'cluster.messagebus.sns.api_secret' );
+
+		$this->_debug = $this->_config->get_boolean( 'cluster.messagebus.debug' );
+		$this->_api = null;
+	}
+
+	/**
+	 * Returns API object
+	 *
+	 * @throws Exception
+	 * @return AmazonSNS
+	 */
+	protected function _get_api() {
+		if ( is_null( $this->_api ) ) {
+			if ( empty( $this->_api_key ) && empty( $this->_api_secret ) ) {
+				$credentials = \Aws\Credentials\CredentialProvider::defaultProvider();
+			} else {
+				if ( empty( $this->_api_key ) ) {
+					throw new \Exception( 'API Key is not configured' );
+				}
+
+				if ( empty( $this->_api_secret ) ) {
+					throw new \Exception( 'API Secret is not configured' );
+				}
+
+				$credentials = new \Aws\Credentials\Credentials(
+					$this->_api_key, $this->_api_secret );
+			}
+
+			$this->_api = new \Aws\Sns\SnsClient( array(
+				'credentials' => $credentials,
+				'region' => $this->_region,
+				'version' => '2010-03-31'
+			) );
+		}
+
+		return $this->_api;
+	}
+
+	/**
+	 * Write log entry
+	 *
+	 * @param string  $message
+	 * @param array   $backtrace
+	 * @return bool|int
+	 */
+	protected function _log( $message, $backtrace = null ) {
+		if ( !$this->_debug )
+			return true;
+
+		$data = sprintf( "[%s] %s\n", date( 'r' ), $message );
+		if ( $backtrace ) {
+			$debug = print_r( $backtrace, true );
+			$data .= $debug . "\n";
+		}
+		$data = strtr( $data, '<>', '..' );
+
+		$filename = Util_Debug::log_filename( 'sns' );
+
+		return @file_put_contents( $filename, $data, FILE_APPEND );
+	}
+}