drop obsolete parameter, thanks Tomas Kuliavas for finding
[squirrelmail.git] / src / redirect.php
index 35a1d4366e48c48c697d31f0f1599278ef4a93a8..bfa88bef29fb2eb8058864169c7c7cc524b0b729 100644 (file)
 <?php
 
-   /**
-    **  redirect.php -- derived from webmail.php by Ralf Kraudelt
-    **                                              kraude@wiwi.uni-rostock.de
-    **
-    **  Copyright (c) 1999-2000 ...
-    **  Licensed under the GNU GPL. For full terms see the file COPYING.
-    **
-    **  prevents users from reposting their form data after a
-    **  successful logout
-    **
-    **  $Id$
-    **/
-
-   require_once('../functions/i18n.php');
-   require_once('../functions/strings.php');
-   require_once('../config/config.php');
-
-   // Before starting the session, the base URI must be known.
-   // Assuming that this file is in the src/ subdirectory (or
-   // something).
-   ereg ("(^.*/)[^/]+/[^/]+$", $PHP_SELF, $regs);
-   $base_uri = $regs[1];
-
-   header('Pragma: no-cache');
-   $location = get_location();
-
-   session_set_cookie_params (0, $base_uri);
-   session_start();
-
-   session_unregister ('user_is_logged_in');
-   session_register ('base_uri');
-
-   if (! isset($squirrelmail_language)) 
-      $squirrelmail_language = '';
-   set_up_language($squirrelmail_language, true);
-   
-   if(!isset($login_username)) {
-      echo "<html><body bgcolor=\"ffffff\">\n";
-      echo "<br><br>";
-      echo "<center>";
-      echo "<b>"._("You must be logged in to access this page.")."</b><br>";
-      echo "<a href=\"../src/login.php\">"._("Go to the login page")."</a>\n";
-      echo "</center>";
-      echo "</body></html>\n";
-      exit;
-   }
-
-   // Refresh the language cookie.
-   if (isset($squirrelmail_language)) {
-      setcookie('squirrelmail_language', $squirrelmail_language, time()+2592000);
-   }
-
-
-   require_once('../functions/prefs.php');
-   require_once('../functions/imap.php');
-   require_once('../functions/plugin.php');
-
-   if (!session_is_registered('user_is_logged_in')) {
-      do_hook ('login_before');
-
-      $onetimepad = OneTimePadCreate(strlen($secretkey));
-      $key = OneTimePadEncrypt($secretkey, $onetimepad);
-      session_register('onetimepad');
-      // verify that username and password are correct
-      if ($force_username_lowercase)
-          $login_username = strtolower($login_username);
-
-      $imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0);
-         if (!$imapConnection) {
-             echo "<html><body bgcolor=\"ffffff\">\n";
-            echo "<br><br>";
-            echo "<center>";
-            echo "<b>"._("There was an error contacting the mail server.")."</b><br>";
-            echo _("Contact your administrator for help.")."\n";
-            echo "</center>";
-            echo "</body></html>\n";
-            exit;
-         }
-      sqimap_logout($imapConnection);
-
-      $username = $login_username;
-      session_register ('username');
-      setcookie('key', $key, 0, $base_uri);
-      do_hook ('login_verified');
-   }
-
-   $user_is_logged_in = true;
-   session_register ('user_is_logged_in');
-   $just_logged_in = true;
-   session_register ('just_logged_in');
-
-   if(isset($rcptemail))
-      header("Location: webmail.php?right_frame=compose.php&rcptaddress=" .
-         urlencode($rcptemail));
-   else
-      header("Location: webmail.php");
-?>
\ No newline at end of file
+/**
+ * Prevents users from reposting their form data after a successful logout.
+ *
+ * Derived from webmail.php by Ralf Kraudelt <kraude@wiwi.uni-rostock.de>
+ *
+ * @copyright &copy; 1999-2007 The SquirrelMail Project Team
+ * @license http://opensource.org/licenses/gpl-license.php GNU Public License
+ * @version $Id$
+ * @package squirrelmail
+ */
+$sInitLocation = 'redirect';
+
+/**
+ * Include the SquirrelMail initialization file.
+ */
+require('../include/init.php');
+
+/* SquirrelMail required files. */
+require_once(SM_PATH . 'functions/imap_general.php');
+require_once(SM_PATH . 'functions/strings.php');
+
+header('Pragma: no-cache');
+$location = get_location();
+
+// session_set_cookie_params (0, $base_uri);
+
+sqsession_unregister ('user_is_logged_in');
+sqsession_register ($base_uri, 'base_uri');
+
+/* get globals we me need */
+sqGetGlobalVar('login_username', $login_username);
+sqGetGlobalVar('secretkey', $secretkey);
+if(!sqGetGlobalVar('squirrelmail_language', $squirrelmail_language) || $squirrelmail_language == '') {
+    $squirrelmail_language = $squirrelmail_default_language;
+}
+if (!sqgetGlobalVar('mailtodata', $mailtodata)) {
+    $mailtodata = '';
+}
+
+/* end of get globals */
+
+set_up_language($squirrelmail_language, true);
+/* Refresh the language cookie. */
+sqsetcookie('squirrelmail_language', $squirrelmail_language, time()+2592000,
+          $base_uri);
+
+if (!isset($login_username)) {
+    logout_error( _("You must be logged in to access this page.") );
+    exit;
+}
+
+if (!sqsession_is_registered('user_is_logged_in')) {
+    do_hook('login_before', $null);
+
+    $onetimepad = OneTimePadCreate(strlen($secretkey));
+    $key = OneTimePadEncrypt($secretkey, $onetimepad);
+
+    /* remove redundant spaces */
+    $login_username = trim($login_username);
+
+    /* Verify that username and password are correct. */
+    if ($force_username_lowercase) {
+        $login_username = strtolower($login_username);
+    }
+
+    $imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0);
+    /* From now on we are logged it. If the login failed then sqimap_login handles it */
+
+    /* regenerate the session id to avoid session hyijacking */
+    sqsession_destroy();
+    @sqsession_is_active();
+    session_regenerate_id();
+    /**
+     * The cookie part. session_start and session_regenerate_session normally set
+     * their own cookie. SquirrelMail sets another cookie which overwites the
+     * php cookies. The sqsetcookie function sets the cookie by using the header
+     * function which gives us full control how the cookie is set. We do that
+     * to add the HttpOnly cookie attribute which blocks javascript access on
+     * IE6 SP1.
+     */
+    sqsetcookie(session_name(),session_id(),false,$base_uri);
+    sqsetcookie('key', $key, false, $base_uri);
+
+    sqsession_register($onetimepad, 'onetimepad');
+
+    $sqimap_capabilities = sqimap_capability($imapConnection);
+
+    /* Server side sorting control */
+    if (isset($sqimap_capabilities['SORT']) && $sqimap_capabilities['SORT'] == true &&
+        isset($disable_server_sort) && $disable_server_sort) {
+        unset($sqimap_capabilities['SORT']);
+    }
+
+    /* Thread sort control */
+    if (isset($sqimap_capabilities['THREAD']) && $sqimap_capabilities['THREAD'] == true &&
+        isset($disable_thread_sort) && $disable_thread_sort) {
+        unset($sqimap_capabilities['THREAD']);
+    }
+
+    sqsession_register($sqimap_capabilities, 'sqimap_capabilities');
+    $delimiter = sqimap_get_delimiter ($imapConnection);
+
+    if (isset($sqimap_capabilities['NAMESPACE']) && $sqimap_capabilities['NAMESPACE'] == true) {
+        $namespace = sqimap_get_namespace($imapConnection);
+        sqsession_register($namespace, 'sqimap_namespace');
+    }
+
+    sqimap_logout($imapConnection);
+    sqsession_register($delimiter, 'delimiter');
+
+    $username = $login_username;
+    sqsession_register ($username, 'username');
+    do_hook('login_verified', $null);
+}
+
+/* Set the login variables. */
+$user_is_logged_in = true;
+$just_logged_in = true;
+
+/* And register with them with the session. */
+sqsession_register ($user_is_logged_in, 'user_is_logged_in');
+sqsession_register ($just_logged_in, 'just_logged_in');
+
+/* parse the accepted content-types of the client */
+$attachment_common_types = array();
+$attachment_common_types_parsed = array();
+sqsession_register($attachment_common_types, 'attachment_common_types');
+sqsession_register($attachment_common_types_parsed, 'attachment_common_types_parsed');
+
+if ( sqgetGlobalVar('HTTP_ACCEPT', $http_accept, SQ_SERVER) &&
+    !isset($attachment_common_types_parsed[$http_accept]) ) {
+    attachment_common_parse($http_accept);
+}
+
+/* Complete autodetection of Javascript. */
+checkForJavascript();
+
+/* Compute the URL to forward the user to. */
+$redirect_url = $location . '/webmail.php';
+
+if ( sqgetGlobalVar('session_expired_location', $session_expired_location, SQ_SESSION) ) {
+    sqsession_unregister('session_expired_location');
+    if ( strpos($session_expired_location, 'compose.php') !== FALSE ) {
+        $compose_new_win = getPref($data_dir, $username, 'compose_new_win', 0);
+        if ($compose_new_win) {
+            // do not prefix $location here because $session_expired_location is set to PHP_SELF
+            // of the last page
+            $redirect_url = $session_expired_location;
+        } else {
+            $redirect_url = $location.'/webmail.php?right_frame='.urlencode($session_expired_location);
+        }
+    }
+    unset($session_expired_location);
+}
+
+if($mailtodata != '') {
+    $redirect_url  = $location . '/webmail.php?right_frame=compose.php&mailtodata=';
+    $redirect_url .= urlencode($mailtodata);
+}
+
+/* Write session data and send them off to the appropriate page. */
+session_write_close();
+header("Location: $redirect_url");
+exit;
+
+/* --------------------- end main ----------------------- */
+
+function attachment_common_parse($str) {
+    global $attachment_common_types, $attachment_common_types_parsed;
+
+    /*
+     * Replace ", " with "," and explode on that as Mozilla 1.x seems to
+     * use "," to seperate whilst IE, and earlier versions of Mozilla use
+     * ", " to seperate
+     */
+
+    $str = str_replace( ', ' , ',' , $str );
+    $types = explode(',', $str);
+
+    foreach ($types as $val) {
+        // Ignore the ";q=1.0" stuff
+        if (strpos($val, ';') !== false)
+            $val = substr($val, 0, strpos($val, ';'));
+
+        if (! isset($attachment_common_types[$val])) {
+            $attachment_common_types[$val] = true;
+        }
+    }
+    sqsession_register($attachment_common_types, 'attachment_common_types');
+
+    /* mark as parsed */
+    $attachment_common_types_parsed[$str] = true;
+}