Add basic implementation of PhpEmailTransport

diff --git a/wcfsetup/install/files/lib/system/email/transport/PhpEmailTransport.class.php b/wcfsetup/install/files/lib/system/email/transport/PhpEmailTransport.class.php
new file mode 100644 (file)
index 0000000..6e53828
--- /dev/null
+++ b/wcfsetup/install/files/lib/system/email/transport/PhpEmailTransport.class.php
@@ -0,0 +1,45 @@
+<?php
+namespace wcf\system\email\transport;
+use wcf\system\email\Email;
+use wcf\system\email\Mailbox;
+use wcf\util\StringUtil;
+
+/**
+ * PhpEmailTransport is an implementation of an email transport which sends emails using mail().
+ * 
+ * @author     Tim Duesterhus
+ * @copyright  2001-2015 WoltLab GmbH
+ * @license    GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
+ * @package    com.woltlab.wcf
+ * @subpackage system.email.transport
+ * @category   Community Framework
+ */
+class PhpEmailTransport implements EmailTransport {
+       /**
+        * Delivers the given email via mail().
+        * 
+        * @param       \wcf\system\email\Email         $email
+        * @param       \wcf\system\email\Mailbox       $envelopeTo
+        */
+       public function deliver(Email $email, Mailbox $envelopeTo) {
+               $headers = array_filter($email->getHeaders(), function ($item) {
+                       // filter out headers that are either
+                       //   a) automatically added by PHP
+                       //   b) interpreted by sendmail because of -t
+                       // 
+                       // The email will be slightly mangled as the result of this. In particular
+                       // the 'To' and 'Cc' headers will be cleared, which makes this email appear
+                       // to be sent to a single recipient only.
+                       // But this is better than crippling the superior transports or special casing
+                       // the PhpTransport in other classes.
+                       return $item[0] !== 'subject' && $item[0] !== 'to' && $item[0] !== 'cc' && $item[0] !== 'bcc';
+               });
+               
+               $headers = implode("\r\n", array_map(function ($item) {
+                       return implode(': ', $item);
+               }, $headers));
+               
+               // TODO: -f flag
+               mail($envelopeTo->getAddress(), $email->getSubject(), StringUtil::unifyNewlines($email->getBodyString()), $headers);
+       }
+}