From 7c2d30b2e106a23fe2ab295f7dc2e628e4d828bb Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Wed, 13 Aug 2008 07:39:10 -0400
Subject: [PATCH] #1485170: fixed splitter under Firefox3

---
 program/include/session.inc |  147 +++++++++++++++++++++++++++++++------------------
 1 files changed, 93 insertions(+), 54 deletions(-)

diff --git a/program/include/session.inc b/program/include/session.inc
index 35970c8..ef8eb27 100644
--- a/program/include/session.inc
+++ b/program/include/session.inc
@@ -5,7 +5,7 @@
  | program/include/session.inc                                           |
  |                                                                       |
  | This file is part of the RoundCube Webmail client                     |
- | Copyright (C) 2005, RoundCube Dev, - Switzerland                      |
+ | Copyright (C) 2005-2007, RoundCube Dev. - Switzerland                 |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
  | PURPOSE:                                                              |
@@ -26,7 +26,6 @@
   }
 
 
-
 function sess_close()
   {
   return TRUE;
@@ -36,17 +35,20 @@
 // read session data
 function sess_read($key)
   {
-  global $DB, $SESS_CHANGED;
+  global $DB, $SESS_CHANGED, $SESS_CLIENT_IP;
   
-  $sql_result = $DB->query(sprintf("SELECT vars, UNIX_TIMESTAMP(changed) AS changed
-                                    FROM   %s
-                                    WHERE  sess_id='%s'",
-                                   get_table_name('session'),
-                                   $key));
+  if ($DB->is_error())
+    return FALSE;
+  
+  $sql_result = $DB->query("SELECT vars, ip, ".$DB->unixtimestamp('changed')." AS changed
+                            FROM ".get_table_name('session')."
+                            WHERE  sess_id=?",
+                            $key);
 
   if ($sql_arr = $DB->fetch_assoc($sql_result))
     {
     $SESS_CHANGED = $sql_arr['changed'];
+    $SESS_CLIENT_IP = $sql_arr['ip'];
 
     if (strlen($sql_arr['vars']))
       return $sql_arr['vars'];
@@ -61,31 +63,32 @@
   {
   global $DB;
   
-  $sql_result = $DB->query(sprintf("SELECT 1
-                                    FROM   %s
-                                    WHERE  sess_id='%s'",
-                                   get_table_name('session'),
-                                   $key));
+  if ($DB->is_error())
+    return FALSE;
+
+  $sql_result = $DB->query("SELECT 1
+                            FROM ".get_table_name('session')."
+                            WHERE  sess_id=?",
+                            $key);
 
   if ($DB->num_rows($sql_result))
     {
     session_decode($vars);
-    $DB->query(sprintf("UPDATE %s
-                        SET    vars='%s',
-                               changed=NOW()
-                        WHERE  sess_id='%s'",
-                       get_table_name('session'),
-                       $vars,
-                       $key));
+    $DB->query("UPDATE ".get_table_name('session')."
+                SET    vars=?,
+                       changed=".$DB->now()."
+                WHERE  sess_id=?",
+                $vars,
+                $key);
     }
   else
     {
-    $DB->query(sprintf("INSERT INTO %s
-                        (sess_id, vars, created, changed)
-                        VALUES ('%s', '%s', NOW(), NOW())",
-                       get_table_name('session'),
-                       $key,
-                       $vars));
+    $DB->query("INSERT INTO ".get_table_name('session')."
+                (sess_id, vars, ip, created, changed)
+                VALUES (?, ?, ?, ".$DB->now().", ".$DB->now().")",
+                $key,
+                $vars,
+                (string)$_SERVER['REMOTE_ADDR']);
     }
 
   return TRUE;
@@ -95,19 +98,23 @@
 // handler for session_destroy()
 function sess_destroy($key)
   {
-  global $DB;
+  global $DB, $CONFIG;
   
-  $DB->query(sprintf("DELETE FROM %s
-                      WHERE sess_id='%s'",
-                     get_table_name('session'),
-                     $key));
+  if ($DB->is_error())
+    return FALSE;
 
-  // also delete session entries in cache table
-  $DB->query(sprintf("DELETE FROM %s
-                      WHERE  session_id='%s'",
-                     get_table_name('cache'),
-                     $key));
-                     
+  if ($CONFIG['enable_caching'])
+    {
+    // delete session entries in cache table
+    $DB->query("DELETE FROM ".get_table_name('cache')."
+              WHERE session_id=?",
+              $key);
+    }
+              
+  $DB->query("DELETE FROM ".get_table_name('session')."
+              WHERE sess_id=?",
+              $key);
+
   return TRUE;
   }
 
@@ -115,39 +122,71 @@
 // garbage collecting function
 function sess_gc($maxlifetime)
   {
-  global $DB;
+  global $DB, $CONFIG;
+
+  if ($DB->is_error())
+    return FALSE;
 
   // get all expired sessions  
-  $sql_result = $DB->query(sprintf("SELECT sess_id
-                                    FROM   %s
-                                    WHERE  UNIX_TIMESTAMP(NOW())-UNIX_TIMESTAMP(created) > %d",
-                                   get_table_name('session'),
-                                   $maxlifetime));
+  $sql_result = $DB->query("SELECT sess_id
+                            FROM ".get_table_name('session')."
+                            WHERE ".$DB->unixtimestamp($DB->now())."-".$DB->unixtimestamp('changed')." > ?",
+                            $maxlifetime);
                                    
   $a_exp_sessions = array();
   while ($sql_arr = $DB->fetch_assoc($sql_result))
     $a_exp_sessions[] = $sql_arr['sess_id'];
 
-  
   if (sizeof($a_exp_sessions))
     {
+    if ($CONFIG['enable_caching'])
+      {
+        // delete session cache records
+	$DB->query("DELETE FROM ".get_table_name('cache')."
+                WHERE session_id IN ('".join("','", $a_exp_sessions)."')");
+      }
+                  
     // delete session records
-    $DB->query(sprintf("DELETE FROM %s
-                        WHERE sess_id IN ('%s')",
-                       get_table_name('session'),
-                       join("','", $a_exp_sessions)));
-
-    // also delete session cache records
-    $DB->query(sprintf("DELETE FROM %s
-                        WHERE  session_id IN ('%s')",
-                       get_table_name('cache'),
-                       join("','", $a_exp_sessions)));
+    $DB->query("DELETE FROM ".get_table_name('session')."
+                WHERE sess_id IN ('".join("','", $a_exp_sessions)."')");
     }
 
+  // also run message cache GC
+  if ($CONFIG['enable_caching'])
+    rcmail_message_cache_gc();
+  rcmail_temp_gc();
+
   return TRUE;
   }
 
 
+function sess_regenerate_id()
+  {
+  $randlen = 32;
+  $randval = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+  $random = "";
+  for ($i=1; $i <= $randlen; $i++)
+    $random .= substr($randval, rand(0,(strlen($randval) - 1)), 1);
+
+  // use md5 value for id or remove capitals from string $randval
+  $random = md5($random);
+
+  // delete old session record
+  sess_destroy(session_id());
+
+  session_id($random);
+
+  $cookie    = session_get_cookie_params();
+  $_lifetime = $cookie['lifetime'] ? time() + $cookie['lifetime'] : 0;
+
+  setcookie(session_name(), '', time() - 3600);
+  setcookie(session_name(), $random, $_lifetime, $cookie['path'],
+    $cookie['domain']);
+
+  return true;
+  }
+
+
 // set custom functions for PHP session management
 session_set_save_handler('sess_open', 'sess_close', 'sess_read', 'sess_write', 'sess_destroy', 'sess_gc');
 

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