\documentclass{article}
\usepackage{ulem}
\pagestyle{headings}
\begin{document}
\textbf{IMP (4.1+) Hierarchical folder structure with Cyrus IMAP}

Since IMP 4.1+ the previous hierarchical folder structure - personal folders below INBOX, shared folders beside INBOX - has gone, because it is not the correct way - according to the RFCs.\newline
This has been discussed in Ticket \#3004\footnote{http://bugs.horde.org/ticket/?id=3004} and Ticket \#2422\footnote{http://bugs.horde.org/ticket/?id=2422}.

Because some people still would like to have the folders presented the old way, here are patches to enable this - still working with HEAD from 16. March 2006.

I am not familiar with php and making patch-files - every suggestion would help.

A configuration option - ['server']['dont\_strip\_namespace'] - will be added to imp/conf.xml (update your IMP configuration after patching !), imp/lib/IMAP/Tree.php and framework/IMAP/IMAP/Tree.php (bring installed framework up-to-date after patching !) will be patched.

Colortext: NIUse this at your own risk !Colortext: NI\newline
it is working fine for me with Cyrus 2.3.3, PHP 4.4.2, Apache 1.3.34 and Horde HEAD


\noindent\rule{\textwidth}{1pt}
\begin{verbatim}

--- imp/lib/IMAP/Tree.php    2005-11-18 18:43:47.000000000 +0100

+++  imp/lib/IMAP/Tree.php    2005-11-22 20:10:52.260870192 +0100

@@ -68,7 +68,8 @@
         if ($imp['base_protocol'] != 'pop3') {
             $ptr = reset($_SESSION['imp']['namespace']);
             $this->_delimiter = $ptr['delimiter'];
-            if (method_exists($this, 'extendedNamespaceSupport')) {

+             global $conf;

+            if (method_exists($this, 'extendedNamespaceSupport') && !$conf['server']['dont_strip_namespace']) {
                 $this->_newimaptree = true;
                 $this->_namespaces = $_SESSION['imp']['namespace'];
                 $this->IMAPchildrenSupport($_SESSION['imp']['imap_server']['children']);

--- framework/IMAP/IMAP/Tree.php    2005-11-18 18:44:46.000000000 +0100

+++  framework/IMAP/IMAP/Tree.php    2005-11-22 21:34:26.770548848 +0100

@@ -409,6 +409,8 @@
             !preg_match("/\{.*pop3.*\}/", $ob->fullServerPath)) {
             $elt['p'] = implode((is_null($ns_info)) ? $this->_delimiter : $ns_info['delimiter'], array_slice($tmp, 0, $elt['c']));
             /* Strip personal namespace. */

+             global $conf;

+            if (!$conf['server']['dont_strip_namespace']) {
             if (!is_null($ns_info) &&
                 !empty($ns_info['name']) &&
                 ($ns_info['type'] == 'personal')) {
@@ -419,6 +421,7 @@
                     $elt['p'] = 'INBOX';
                 }
             }

+             }

         }
         $elt['l'] = String::convertCharset($tmp[$label], 'UTF7-IMAP');

--- imp/config/conf.xml    2005-11-18 18:43:47.000000000 +0100

+++  imp/config/conf.xml    2005-11-19 12:18:09.815006816 +0100

@@ -125,6 +125,8 @@
    significantly higher session size (5 MB+ per user) so make sure your
    session backend can handle the increased storage demands.">
    false</configboolean>

+    <configboolean name="dont_strip_namespace" desc="If you would like to have

+   a hierarchical listing of the folders, you should enable this checkbox.">false</configboolean>
   </configsection>
  </configtab>
\end{verbatim}

Patch against Horde 3.1 and IMP 4.1:

\begin{verbatim}

diff -urN horde-org/imp/config/conf.xml horde/imp/config/conf.xml
--- horde-org/imp/config/conf.xml    2006-01-14 17:52:34.000000000 +0100

+++  horde/imp/config/conf.xml    2006-03-23 09:35:37.000000000 +0100

@@ -126,6 +126,8 @@
    session size (approx. 100 - 200 KB per user) so make sure your session
    backend can handle the increased storage demands.">
    false</configboolean>

+    <configboolean name="dont_strip_namespace" desc="If you would like to have

+   a hierarchical listing of the folders, you should enable this checkbox.">false</configboolean>
   </configsection>
  </configtab>
 
diff -urN horde-org/imp/lib/IMAP/Tree.php horde/imp/lib/IMAP/Tree.php
--- horde-org/imp/lib/IMAP/Tree.php    2006-02-09 06:51:12.000000000 +0100

+++  horde/imp/lib/IMAP/Tree.php    2006-03-23 09:35:37.000000000 +0100

@@ -77,7 +77,8 @@
         if ($imp['base_protocol'] != 'pop3') {
             $ptr = reset($_SESSION['imp']['namespace']);
             $this->_delimiter = $ptr['delimiter'];
-            if (method_exists($this, 'extendedNamespaceSupport')) {

+             global $conf;

+            if (method_exists($this, 'extendedNamespaceSupport') && !$conf['server']['dont_strip_namespace']) {
                 $this->_newimaptree = true;
                 $this->_namespaces = $_SESSION['imp']['namespace'];
                 $this->IMAPchildrenSupport($_SESSION['imp']['imap_server']['children']);
diff -urN horde-org/lib/Horde/IMAP/Tree.php horde/lib/Horde/IMAP/Tree.php
--- horde-org/lib/Horde/IMAP/Tree.php    2006-03-06 18:15:16.000000000 +0100

+++  horde/lib/Horde/IMAP/Tree.php    2006-03-23 09:35:37.000000000 +0100

@@ -408,6 +408,8 @@
             !preg_match("/\{.*pop3.*\}/", $ob->fullServerPath)) {
             $elt['p'] = implode((is_null($ns_info)) ? $this->_delimiter : $ns_info['delimiter'], array_slice($tmp, 0, $elt['c']));
             /* Strip personal namespace. */

+             global $conf;

+            if (!$conf['server']['dont_strip_namespace']) {
             if (!is_null($ns_info) &&
                 !empty($ns_info['name']) &&
                 ($ns_info['type'] == 'personal')) {
@@ -418,6 +420,7 @@
                     $elt['p'] = 'INBOX';
                 }
             }

+             }

         }
         $elt['l'] = String::convertCharset($tmp[$label], 'UTF7-IMAP');
 
\end{verbatim}

\end{document}
