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include/swiftmailer/lib/classes/Swift/Plugins/ImpersonatePlugin.php

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+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Replaces the sender of a message.
+ *
+ * @author Arjen Brouwer
+ */
+class Swift_Plugins_ImpersonatePlugin implements Swift_Events_SendListener
+{
+    /**
+     * The sender to impersonate.
+     *
+     * @var string
+     */
+    private $sender;
+
+    /**
+     * Create a new ImpersonatePlugin to impersonate $sender.
+     *
+     * @param string $sender address
+     */
+    public function __construct($sender)
+    {
+        $this->sender = $sender;
+    }
+
+    /**
+     * Invoked immediately before the Message is sent.
+     */
+    public function beforeSendPerformed(Swift_Events_SendEvent $evt)
+    {
+        $message = $evt->getMessage();
+        $headers = $message->getHeaders();
+
+        // save current recipients
+        $headers->addPathHeader('X-Swift-Return-Path', $message->getReturnPath());
+
+        // replace them with the one to send to
+        $message->setReturnPath($this->sender);
+    }
+
+    /**
+     * Invoked immediately after the Message is sent.
+     */
+    public function sendPerformed(Swift_Events_SendEvent $evt)
+    {
+        $message = $evt->getMessage();
+
+        // restore original headers
+        $headers = $message->getHeaders();
+
+        if ($headers->has('X-Swift-Return-Path')) {
+            $message->setReturnPath($headers->get('X-Swift-Return-Path')->getAddress());
+            $headers->removeAll('X-Swift-Return-Path');
+        }
+    }
+}