Added new simple Dovecot LDA backend for kolabfilter/kolabmailboxfilter.

5 files changed, 176 insertions, 0 deletions

diff --git a/php-kolab/Kolab_Filter/AUTHORS b/php-kolab/Kolab_Filter/AUTHORS
index 38ac31e..da5340f 100644
--- a/php-kolab/Kolab_Filter/AUTHORS
+++ b/php-kolab/Kolab_Filter/AUTHORS
@@ -20,6 +20,9 @@ Portions based on work by the following companies:
   (c) 2006 - 2008  Intevation GmbH
   (c) 2006 - 2008  p@rdus
 
+Dovecot LDA backend:
+
+  (c) 2008         Intevation GmbH
 
 Contributions by the following people:
 
diff --git a/php-kolab/Kolab_Filter/ChangeLog b/php-kolab/Kolab_Filter/ChangeLog
index 20c3b99..985f6bc 100644
--- a/php-kolab/Kolab_Filter/ChangeLog
+++ b/php-kolab/Kolab_Filter/ChangeLog
@@ -1,3 +1,11 @@
+2008-08-01  Sascha Wilde  <wilde@intevation.de>
+
+	* Filter/DovecotLDA.php: New file: simple Dovecot LDA backend with
+	API similar to Net_LMTP, so it can be used as drop-in replacement.
+
+	* Filter/Transport.php (Transport): Added wrapper transport class
+	for new Dovecot LDA backend.
+
 2008-07-11  Gunnar Wrobel  <p@rdus.de>
 
 	* Filter/recurrence.class.php:
diff --git a/php-kolab/Kolab_Filter/Filter/DovecotLDA.php b/php-kolab/Kolab_Filter/Filter/DovecotLDA.php
new file mode 100644
index 0000000..eef755b
--- /dev/null
+++ b/php-kolab/Kolab_Filter/Filter/DovecotLDA.php
@@ -0,0 +1,148 @@
+<?PHP
+/*
+ *  COPYRIGHT
+ *  ---------
+ *
+ *  See ../AUTHORS file
+ *
+ *
+ *  LICENSE
+ *  -------
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  $Revision$
+ *
+ *  ABOUT
+ *  -----
+ *
+ *  Simple Net_LMTP like backend for dovecot LDA delivery.
+ *
+ */
+
+class Dovecot_LDA
+{
+    var $envelopeSender;
+    var $envelopeTo;
+    var $status;
+    var $deliver_fh;
+
+    function Dovecot_LDA()
+    {
+        $this->envelopeTo = false;
+        $this->status = 220;
+    }
+
+    function mailFrom($sender)
+    {
+        $this->envelopeSender = $sender;
+        $this->status = 250;
+    }
+
+    function rcptTo($rcpt)
+    {
+        // We can only handle one recipient, so bail out if more than one is tried!
+        if ( ! $this->envelopeTo ) {
+            $this->envelopeTo = $rcpt;
+            $this->status = 250;
+        } else {
+            $this->status = 451;  	// Requested action aborted: local error in processing
+            return PEAR::raiseError(_("Configuration error!  Dovecot LDA Backend can only handle one recipient at a time."));
+        }
+    }
+
+    function connect()
+    {
+        return true;
+    }
+
+    function disconnect()
+    {
+        return true;
+    }
+
+    function _put($cmd)
+    {
+        if ( $cmd == "DATA" ) {
+            $this->__start_deliver();
+            $this->status = 354;
+        } else {
+            $this->status = 500;
+            return PEAR::raiseError(_("Dovecot LDA Backend received unknow command."));
+        }
+        return true;
+    }
+
+    function _parseResponse($code)
+    {
+        if ( $code ) {
+            if ( $this->status == $code ) {
+                return true;
+            } else {
+                return PEAR::raiseError(_("Dovecot LDA status is not the expected!."));
+            }
+        } else {
+            return $this->status;
+        }
+    }
+
+    function _send($data)
+    {
+        if ( $data == ".\r\n" or $data == "\r\n.\r\n" ) {
+            $this->__stop_deliver();
+            # FIXEME: error checking would be nice!
+            $this->status = 250;
+        } else {
+            $this->__deliver($data);
+        }
+    }
+
+    # Private functions:
+
+    function __start_deliver()
+    {
+        Horde::logMessage(sprintf(_("Starting Dovecot deliver process with UID %d, GID %d (sender=%s, recipient=%s) ..."),
+                                  getmyuid(), getmygid(),
+                                  $this->envelopeSender, $this->envelopeTo),
+                          __FILE__, __LINE__, PEAR_LOG_DEBUG);
+        # FIXME: path to deliver should be configurable.
+        $this->deliver_fh = popen("/kolab/libexec/dovecot/deliver" .
+                                  " -f $this->envelopeSender" .
+                                  " -d $this->envelopeTo", "w");
+    }
+
+    function __stop_deliver()
+    {
+        Horde::logMessage("Stoping Dovecot deliver process ...",
+                          __FILE__, __LINE__, PEAR_LOG_DEBUG);
+        $retval = pclose($this->deliver_fh);
+        Horde::logMessage(sprintf(_("... returnvalue was %d\n"), $retval),
+                          __FILE__, __LINE__, PEAR_LOG_DEBUG);
+        if ( $retval != 0 )
+            return PEAR::raiseError(_("Dovecot LDA Backend deliver process signaled error."));
+        return true;
+    }
+
+    function __deliver($data)
+    {
+        // Horde::logMessage("Writing data line to Dovecot deliver process ...",
+        //                   __FILE__, __LINE__, PEAR_LOG_DEBUG);
+        if ( fwrite($this->deliver_fh, $data) ) {
+            return true;
+        } else {
+            return PEAR::raiseError(_("Dovecot LDA Backend can't write to deliver process."));
+       }
+    }
+}
diff --git a/php-kolab/Kolab_Filter/Filter/Transport.php b/php-kolab/Kolab_Filter/Filter/Transport.php
index ab0a8f5..34b4950 100644
--- a/php-kolab/Kolab_Filter/Filter/Transport.php
+++ b/php-kolab/Kolab_Filter/Filter/Transport.php
@@ -223,6 +223,16 @@ class Transport_SMTP extends Transport
     }
 }
 
+class Transport_LDA extends Transport
+{
+    function &createTransport()
+    {
+        require_once 'Kolab/Filter/DovecotLDA.php';
+        $transport = &new Dovecot_LDA();
+        return $transport;
+    }
+}
+
 class StdOutWrapper
 {
     function connect()
diff --git a/php-kolab/Kolab_Filter/package.xml.in b/php-kolab/Kolab_Filter/package.xml.in
index 9b06f4b..426e076 100644
--- a/php-kolab/Kolab_Filter/package.xml.in
+++ b/php-kolab/Kolab_Filter/package.xml.in
@@ -49,6 +49,12 @@ http://pear.php.net/dtd/package-2.0.xsd">
   <active>yes</active>
  </developer>
  <developer>
+  <name>Sascha Wilde</name>
+  <user>wilde</user>
+  <email>wilde@intevation.de</email>
+  <active>yes</active>
+ </developer>
+ <developer>
   <name>Marcus Huewe</name>
   <user>marcus</user>
   <email>suse-tux@gmx.de</email>
@@ -96,6 +102,7 @@ http://pear.php.net/dtd/package-2.0.xsd">
      <file name="Resource.php" role="php" />
      <file name="recurrence.class.php" role="php" />
      <file name="Transport.php" role="php" />
+     <file name="DovecotLDA.php" role="php" />
    </dir> <!-- /Filter -->
   </dir> <!-- / -->
  </contents>