From e99b3f2e6e83c38d959e52e09fd833ec90fd39b2 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Tue, 20 Sep 2011 15:17:04 -0400
Subject: [PATCH] - Fix listing messages on servers without SORT and THREAD command

---
 program/include/rcube_ldap.php |  178 +++++++++++++++++++++++++++++++++++------------------------
 1 files changed, 105 insertions(+), 73 deletions(-)

diff --git a/program/include/rcube_ldap.php b/program/include/rcube_ldap.php
index bf978a7..c6ca88e 100644
--- a/program/include/rcube_ldap.php
+++ b/program/include/rcube_ldap.php
@@ -5,6 +5,7 @@
  |                                                                       |
  | This file is part of the Roundcube Webmail client                     |
  | Copyright (C) 2006-2011, The Roundcube Dev Team                       |
+ | Copyright (C) 2011, Kolab Systems AG                                  |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
  | PURPOSE:                                                              |
@@ -13,6 +14,7 @@
  +-----------------------------------------------------------------------+
  | Author: Thomas Bruederli <roundcube@gmail.com>                        |
  |         Andreas Dick <andudi (at) gmx (dot) ch>                       |
+ |         Aleksander Machniak <machniak@kolabsys.com>                   |
  +-----------------------------------------------------------------------+
 
  $Id$
@@ -71,8 +73,14 @@
         $this->prop = $p;
 
         // check if groups are configured
-        if (is_array($p['groups']) and count($p['groups']))
+        if (is_array($p['groups']) && count($p['groups'])) {
             $this->groups = true;
+            // set member field
+            if (!empty($p['groups']['member_attr']))
+                $this->prop['member_attr'] = strtolower($p['groups']['member_attr']);
+            else if (empty($p['member_attr']))
+                $this->prop['member_attr'] = 'member';
+        }
 
         // fieldmap property is given
         if (is_array($p['fieldmap'])) {
@@ -113,8 +121,8 @@
         foreach ($this->prop['required_fields'] as $key => $val)
             $this->prop['required_fields'][$key] = $this->_attr_name(strtolower($val));
 
-        $this->sort_col = is_array($p['sort']) ? $p['sort'][0] : $p['sort'];
-        $this->debug = $debug;
+        $this->sort_col    = is_array($p['sort']) ? $p['sort'][0] : $p['sort'];
+        $this->debug       = $debug;
         $this->mail_domain = $mail_domain;
 
         $this->_connect();
@@ -171,7 +179,10 @@
             $bind_pass = $this->prop['bind_pass'];
             $bind_user = $this->prop['bind_user'];
             $bind_dn   = $this->prop['bind_dn'];
-            $this->base_dn   = $this->prop['base_dn'];
+
+            $this->base_dn        = $this->prop['base_dn'];
+            $this->groups_base_dn = ($this->prop['groups']['base_dn']) ?
+                $this->prop['groups']['base_dn'] : $this->base_dn;
 
             // User specific access, generate the proper values to use.
             if ($this->prop['user_specific']) {
@@ -181,8 +192,11 @@
                 }
 
                 // Get the pieces needed for variable replacement.
-                $fu = $RCMAIL->user->get_username();
-                list($u, $d) = explode('@', $fu);
+                if ($fu = $RCMAIL->user->get_username())
+                  list($u, $d) = explode('@', $fu);
+                else
+                  $d = $this->mail_domain;
+
                 $dc = 'dc='.strtr($d, array('.' => ',dc=')); // hierarchal domain string
 
                 $replaces = array('%dc' => $dc, '%d' => $d, '%fu' => $fu, '%u' => $u);
@@ -194,7 +208,7 @@
 
                     $this->_debug("S: searching with base {$this->prop['search_base_dn']} for {$this->prop['search_filter']}");
 
-                    $res = ldap_search($this->conn, $this->prop['search_base_dn'], $this->prop['search_filter'], array('uid'));
+                    $res = @ldap_search($this->conn, $this->prop['search_base_dn'], $this->prop['search_filter'], array('uid'));
                     if ($res && ($entry = ldap_first_entry($this->conn, $res))) {
                         $bind_dn = ldap_get_dn($this->conn, $entry);
 
@@ -207,8 +221,9 @@
                     }
                 }
                 // Replace the bind_dn and base_dn variables.
-                $bind_dn   = strtr($bind_dn, $replaces);
-                $this->base_dn   = strtr($this->base_dn, $replaces);
+                $bind_dn              = strtr($bind_dn, $replaces);
+                $this->base_dn        = strtr($this->base_dn, $replaces);
+                $this->groups_base_dn = strtr($this->groups_base_dn, $replaces);
 
                 if (empty($bind_user)) {
                     $bind_user = $u;
@@ -217,13 +232,13 @@
 
             if (!empty($bind_pass)) {
                 if (!empty($bind_dn)) {
-                    $this->ready = $this->_bind($bind_dn, $bind_pass);
+                    $this->ready = $this->bind($bind_dn, $bind_pass);
                 }
                 else if (!empty($this->prop['auth_cid'])) {
-                    $this->ready = $this->_sasl_bind($this->prop['auth_cid'], $bind_pass, $bind_user);
+                    $this->ready = $this->sasl_bind($this->prop['auth_cid'], $bind_pass, $bind_user);
                 }
                 else {
-                    $this->ready = $this->_sasl_bind($bind_user, $bind_pass);
+                    $this->ready = $this->sasl_bind($bind_user, $bind_pass);
                 }
             }
         }
@@ -248,7 +263,7 @@
      *
      * @return boolean True on success, False on error
      */
-    private function _sasl_bind($authc, $pass, $authz=null)
+    public function sasl_bind($authc, $pass, $authz=null)
     {
         if (!$this->conn) {
             return false;
@@ -299,7 +314,7 @@
      *
      * @return boolean True on success, False on error
      */
-    private function _bind($dn, $pass)
+    public function bind($dn, $pass)
     {
         if (!$this->conn) {
             return false;
@@ -451,7 +466,7 @@
                 $members = array();
                 foreach ($entries as $entry)
                 {
-                    if ($this->group_members[base64_encode($entry['dn'])])
+                    if ($this->group_members[self::dn_encode($entry['dn'])])
                     {
                         $members[] = $entry;
                         $count++;
@@ -611,7 +626,7 @@
         $res = null;
         if ($this->conn && $dn)
         {
-            $dn = base64_decode($dn);
+            $dn = self::dn_decode($dn);
 
             $this->_debug("C: Read [dn: $dn] [(objectclass=*)]");
 
@@ -682,8 +697,8 @@
         } // end foreach
 
         // Verify that the required fields are set.
+        $missing = null;
         foreach ($this->prop['required_fields'] as $fld) {
-            $missing = null;
             if (!isset($newentry[$fld])) {
                 $missing[] = $fld;
             }
@@ -710,11 +725,13 @@
 
         $this->_debug("S: OK");
 
+        $dn = self::dn_encode($dn);
+
         // add new contact to the selected group
         if ($this->groups)
-            $this->add_to_group($this->group_id, base64_encode($dn));
+            $this->add_to_group($this->group_id, $dn);
 
-        return base64_encode($dn);
+        return $dn;
     }
 
 
@@ -735,7 +752,7 @@
         $newdata = array();
         $replacedata = array();
         $deletedata = array();
-        
+
         // flatten composite fields in $record
         if (is_array($record['address'])) {
           foreach ($record['address'] as $i => $struct) {
@@ -773,7 +790,7 @@
             } // end if
         } // end foreach
 
-        $dn = base64_decode($id);
+        $dn = self::dn_decode($id);
 
         // Update the entry as required.
         if (!empty($deletedata)) {
@@ -830,17 +847,21 @@
             }
             $this->_debug("S: OK");
 
+            $dn    = self::dn_encode($dn);
+            $newdn = self::dn_encode($newdn);
+
             // change the group membership of the contact
             if ($this->groups)
             {
-                $group_ids = $this->get_record_groups(base64_encode($dn));
+                $group_ids = $this->get_record_groups($dn);
                 foreach ($group_ids as $group_id)
                 {
-                    $this->remove_from_group($group_id, base64_encode($dn));
-                    $this->add_to_group($group_id, base64_encode($newdn));
+                    $this->remove_from_group($group_id, $dn);
+                    $this->add_to_group($group_id, $newdn);
                 }
             }
-            return base64_encode($newdn);
+
+            return $newdn;
         }
 
         return true;
@@ -863,7 +884,7 @@
         } // end if
 
         foreach ($ids as $id) {
-            $dn = base64_decode($id);
+            $dn = self::dn_decode($id);
             $this->_debug("C: Delete [dn: $dn]");
             // Delete the record.
             $res = ldap_delete($this->conn, $dn);
@@ -875,12 +896,11 @@
             $this->_debug("S: OK");
 
             // remove contact from all groups where he was member
-            if ($this->groups)
-            {
-                $group_ids = $this->get_record_groups(base64_encode($dn));
-                foreach ($group_ids as $group_id)
-                {
-                    $this->remove_from_group($group_id, base64_encode($dn));
+            if ($this->groups) {
+                $dn = self::dn_encode($dn);
+                $group_ids = $this->get_record_groups($dn);
+                foreach ($group_ids as $group_id) {
+                    $this->remove_from_group($group_id, $dn);
                 }
             }
         } // end foreach
@@ -964,7 +984,7 @@
         $out = array();
 
         if ($rec['dn'])
-            $out[$this->primary_key] = base64_encode($rec['dn']);
+            $out[$this->primary_key] = self::dn_encode($rec['dn']);
 
         foreach ($this->fieldmap as $rf => $lf)
         {
@@ -1064,7 +1084,7 @@
             for ($i=0; $i<$cache_members["count"]; $i++)
             {
                 if (!empty($cache_members[$i]))
-                    $members[base64_encode($cache_members[$i])] = 1;
+                    $members[self::dn_encode($cache_members[$i])] = 1;
             }
             $this->group_members = $members;
             $this->group_id = $group_id;
@@ -1081,35 +1101,18 @@
      */
     function list_groups($search = null)
     {
-        global $RCMAIL;
-
         if (!$this->groups)
             return array();
-
-        $this->groups_base_dn = ($this->prop['groups']['base_dn']) ?
-                $this->prop['groups']['base_dn'] : $this->base_dn;
-
-        // replace user specific dn
-        if ($this->prop['user_specific'])
-        {
-            $fu = $RCMAIL->user->get_username();
-            list($u, $d) = explode('@', $fu);
-            $dc = 'dc='.strtr($d, array('.' => ',dc='));
-            $replaces = array('%dc' => $dc, '%d' => $d, '%fu' => $fu, '%u' => $u);
-
-            $this->groups_base_dn = strtr($this->groups_base_dn, $replaces);
-        }
 
         $base_dn = $this->groups_base_dn;
         $filter = $this->prop['groups']['filter'];
 
         $this->_debug("C: Search [$filter][dn: $base_dn]");
 
-        $res = ldap_search($this->conn, $base_dn, $filter, array('cn','member'));
+        $res = @ldap_search($this->conn, $base_dn, $filter, array('cn', $this->prop['member_attr']));
         if ($res === false)
         {
             $this->_debug("S: ".ldap_error($this->conn));
-            $this->set_error(self::ERROR_SAVING, 'errorsaving');
             return array();
         }
 
@@ -1123,10 +1126,10 @@
             $group_name = $ldap_data[$i]['cn'][0];
             if (!$search || strstr(strtolower($group_name), strtolower($search)))
             {
-                $group_id = base64_encode($group_name);
+                $group_id = self::dn_encode($group_name);
                 $groups[$group_id]['ID'] = $group_id;
                 $groups[$group_id]['name'] = $group_name;
-                $groups[$group_id]['members'] = $ldap_data[$i]['member'];
+                $groups[$group_id]['members'] = $ldap_data[$i][$this->prop['member_attr']];
                 $group_sortnames[] = strtolower($group_name);
             }
         }
@@ -1149,12 +1152,12 @@
 
         $base_dn = $this->groups_base_dn;
         $new_dn = "cn=$group_name,$base_dn";
-        $new_gid = base64_encode($group_name);
+        $new_gid = self::dn_encode($group_name);
 
         $new_entry = array(
             'objectClass' => $this->prop['groups']['object_classes'],
             'cn' => $group_name,
-            'member' => '',
+            $this->prop['member_attr'] => '',
         );
 
         $this->_debug("C: Add [dn: $new_dn]: ".print_r($new_entry, true));
@@ -1219,7 +1222,7 @@
         $group_name = $this->group_cache[$group_id]['name'];
         $old_dn = "cn=$group_name,$base_dn";
         $new_rdn = "cn=$new_name";
-        $new_gid = base64_encode($new_name);
+        $new_gid = self::dn_encode($new_name);
 
         $this->_debug("C: Rename [dn: $old_dn] [dn: $new_rdn]");
 
@@ -1248,13 +1251,14 @@
         if (!$this->group_cache)
             $this->list_groups();
 
-        $base_dn = $this->groups_base_dn;
-        $group_name = $this->group_cache[$group_id]['name'];
-        $group_dn = "cn=$group_name,$base_dn";
+        $base_dn     = $this->groups_base_dn;
+        $group_name  = $this->group_cache[$group_id]['name'];
+        $member_attr = $this->prop['member_attr'];
+        $group_dn    = "cn=$group_name,$base_dn";
 
         $new_attrs = array();
         foreach (explode(",", $contact_ids) as $id)
-            $new_attrs['member'][] = base64_decode($id);
+            $new_attrs[$member_attr][] = self::dn_decode($id);
 
         $this->_debug("C: Add [dn: $group_dn]: ".print_r($new_attrs, true));
 
@@ -1283,13 +1287,14 @@
         if (!$this->group_cache)
             $this->list_groups();
 
-        $base_dn = $this->groups_base_dn;
-        $group_name = $this->group_cache[$group_id]['name'];
-        $group_dn = "cn=$group_name,$base_dn";
+        $base_dn     = $this->groups_base_dn;
+        $group_name  = $this->group_cache[$group_id]['name'];
+        $member_attr = $this->prop['member_attr'];
+        $group_dn    = "cn=$group_name,$base_dn";
 
         $del_attrs = array();
         foreach (explode(",", $contact_ids) as $id)
-            $del_attrs['member'][] = base64_decode($id);
+            $del_attrs[$member_attr][] = self::dn_decode($id);
 
         $this->_debug("C: Delete [dn: $group_dn]: ".print_r($del_attrs, true));
 
@@ -1319,17 +1324,17 @@
         if (!$this->groups)
             return array();
 
-        $base_dn = $this->groups_base_dn;
-        $contact_dn = base64_decode($contact_id);
-        $filter = strtr("(member=$contact_dn)", array('\\' => '\\\\'));
+        $base_dn     = $this->groups_base_dn;
+        $contact_dn  = self::dn_decode($contact_id);
+        $member_attr = $this->prop['member_attr'];
+        $filter      = strtr("($member_attr=$contact_dn)", array('\\' => '\\\\'));
 
         $this->_debug("C: Search [$filter][dn: $base_dn]");
 
-        $res = ldap_search($this->conn, $base_dn, $filter, array('cn'));
+        $res = @ldap_search($this->conn, $base_dn, $filter, array('cn'));
         if ($res === false)
         {
             $this->_debug("S: ".ldap_error($this->conn));
-            $this->set_error(self::ERROR_SAVING, 'errorsaving');
             return array();
         }
         $ldap_data = ldap_get_entries($this->conn, $res);
@@ -1339,7 +1344,7 @@
         for ($i=0; $i<$ldap_data["count"]; $i++)
         {
             $group_name = $ldap_data[$i]['cn'][0];
-            $group_id = base64_encode($group_name);
+            $group_id = self::dn_encode($group_name);
             $groups[$group_id] = $group_id;
         }
         return $groups;
@@ -1398,7 +1403,7 @@
     /**
      * create ber encoding for sort control
      *
-     * @pararm array List of cols to sort by
+     * @param array List of cols to sort by
      * @return string BER encoded option value
      */
     private function _sort_ber_encode($sortcols)
@@ -1452,11 +1457,38 @@
     /**
      * Returns ascii string encoded in hex
      */
-    private static function _string2hex($str) {
+    private static function _string2hex($str)
+    {
         $hex = '';
         for ($i=0; $i < strlen($str); $i++)
             $hex .= dechex(ord($str[$i]));
         return $hex;
     }
 
+    /**
+     * HTML-safe DN string encoding
+     *
+     * @param string $str DN string
+     *
+     * @return string Encoded HTML identifier string
+     */
+    static function dn_encode($str)
+    {
+        // @TODO: to make output string shorter we could probably
+        //        remove dc=* items from it
+        return rtrim(strtr(base64_encode($str), '+/', '-_'), '=');
+    }
+
+    /**
+     * Decodes DN string encoded with _dn_encode()
+     *
+     * @param string $str Encoded HTML identifier string
+     *
+     * @return string DN string
+     */
+    static function dn_decode($str)
+    {
+        $str = str_pad(strtr($str, '-_', '+/'), strlen($str) % 4, '=', STR_PAD_RIGHT);
+        return base64_decode($str);
+    }
 }

--
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