Fix bug 451: improvement

small problem with reconnexion after session timeout
add auto-login function
all staff for session (connexion, auto-login and logout) 
is now in include/user.inc.php


git-svn-id: http://piwigo.org/svn/trunk@1511 68402e56-0260-453c-a942-63ccdbb3a9ee

3 files changed, 71 insertions, 17 deletions

diff --git a/include/functions_user.inc.php b/include/functions_user.inc.php
index 134f7493d..28f81e7a4 100644
--- a/include/functions_user.inc.php
+++ b/include/functions_user.inc.php
@@ -550,7 +550,7 @@ function get_language_filepath($filename)
 */
 function log_user($user_id, $remember_me)
 {
-  global $conf;
+  global $conf, $user;
 
   if ($remember_me)
   {
@@ -581,6 +581,36 @@ UPDATE '.USERS_TABLE.'
   }
   session_start();
   $_SESSION['pwg_uid'] = $user_id;
+
+  $user['id'] = $_SESSION['pwg_uid'];
+  $user['is_the_guest'] = false;
+}
+
+/*
+ * Performs auto-connexion when cookie remember_me exists
+ * @return void
+*/
+function auto_login() { 
+  global $conf;
+
+  $cookie = unserialize(pwg_stripslashes($_COOKIE[$conf['remember_me_name']]));
+  $query = '
+SELECT auto_login_key
+  FROM '.USERS_TABLE.'
+  WHERE '.$conf['user_fields']['id'].' = '.$cookie['id'].'
+;';
+
+  $auto_login_key = current(mysql_fetch_assoc(pwg_query($query)));
+  if ($auto_login_key == $cookie['key'])
+  {
+    log_user($cookie['id'], false);
+    redirect(make_index_url());
+  }
+  else
+  {
+    setcookie($conf['remember_me_name'], '', 0, cookie_path());
+    redirect(make_index_url());
+  } 
 }
 
 /*
diff --git a/include/menubar.inc.php b/include/menubar.inc.php
index 48f372d5a..822f19fec 100755
--- a/include/menubar.inc.php
+++ b/include/menubar.inc.php
@@ -44,7 +44,7 @@ $template->assign_vars(
     'U_HOME' => make_index_url(),
     'U_REGISTER' => get_root_url().'register.php',
     'U_LOST_PASSWORD' => get_root_url().'password.php',
-    'U_LOGOUT' => add_url_params(make_index_url(), array('act'=>'logout') ),
+    'U_LOGOUT' => get_root_url().'?act=logout',
     'U_ADMIN'=> get_root_url().'admin.php',
     'U_PROFILE'=> get_root_url().'profile.php',
     )
diff --git a/include/user.inc.php b/include/user.inc.php
index 47b318eeb..6eb0b605f 100644
--- a/include/user.inc.php
+++ b/include/user.inc.php
@@ -25,26 +25,49 @@
 // | USA.                                                                  |
 // +-----------------------------------------------------------------------+
 
-// retrieving connected user informations
 if (isset($_COOKIE[session_name()]))
 {
- session_start();
- if (isset($_SESSION['pwg_uid']))
- {
-   $user['id'] = $_SESSION['pwg_uid'];
-   $user['is_the_guest'] = false;
- }
- else
- {
-   // session timeout
-   $user['id'] = $conf['guest_id'];
-   $user['is_the_guest'] = true;
- }
+  session_start();
+  if (isset($_GET['act']) and $_GET['act'] == 'logout')
+  {
+    // logout
+    $_SESSION = array();
+    session_unset();
+    session_destroy();
+    setcookie(session_name(),'',0,
+	      ini_get('session.cookie_path'), 
+	      ini_get('session.cookie_domain') 
+	      );
+    setcookie($conf['remember_me_name'], '', 0, cookie_path());
+    redirect(make_index_url());
+  } 
+  elseif (empty($_SESSION['pwg_uid'])) 
+  {
+    // timeout
+    setcookie(session_name(),'',0,
+	      ini_get('session.cookie_path'), 
+	      ini_get('session.cookie_domain') 
+	      );
+  }
+  else
+  {
+    $user['id'] = $_SESSION['pwg_uid'];
+    $user['is_the_guest'] = false;
+  }
 }
+elseif (!empty($_COOKIE[$conf['remember_me_name']]))
+{
+  auto_login();
+} 
 else
 {
- $user['id'] = $conf['guest_id'];
- $user['is_the_guest'] = true;
+  $user['id'] = $conf['guest_id'];
+  $user['is_the_guest'] = true;
+}
+
+if ($user['is_the_guest'] and !$conf['guest_access'])
+{
+  redirect (get_root_url().'identification.php');
 }
 
 // using Apache authentication override the above user search
@@ -58,6 +81,7 @@ if ($conf['apache_authentication'] and isset($_SERVER['REMOTE_USER']))
 
   $user['is_the_guest'] = false;
 }
+
 $user = array_merge(
   $user,
   getuserdata(