Add Swift Mailer to send mails

htdocs/includes/swiftmailer/lib/classes/Swift/Signers/BodySigner.php

@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Body Signer Interface used to apply Body-Based Signature to a message.
+ *
+ * @author Xavier De Cock <xdecock@gmail.com>
+ */
+interface Swift_Signers_BodySigner extends Swift_Signer
+{
+    /**
+     * Change the Swift_Signed_Message to apply the singing.
+     *
+     * @param Swift_Message $message
+     *
+     * @return Swift_Signers_BodySigner
+     */
+    public function signMessage(Swift_Message $message);
+
+    /**
+     * Return the list of header a signer might tamper.
+     *
+     * @return array
+     */
+    public function getAlteredHeaders();
+}