implemented session timeout
This commit is contained in:
Roland Gruber
parent
d920a663f7
commit
ef8365d787
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@ -122,12 +122,14 @@ $helpArray = array (
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"Text" => _("This changes the password of the selected profile.")),
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"234" => array ("ext" => "FALSE", "Headline" => _("Profile management") . " - " . _("Change default profile"),
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"Text" => _("This changes the profile which is selected by default at login.")),
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"235" => array ("ext" => "FALSE", "Headline" => _("Profile management") . " - " . _("Change master password"),
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"235" => array ("ext" => "FALSE", "Headline" => _("Change master password"),
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"Text" => _("If you want to change your master configuration password, please enter it here.")),
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"236" => array ("ext" => "FALSE", "Headline" => _("Profile management") . " - " . _("Master password"),
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"236" => array ("ext" => "FALSE", "Headline" => _("Master password"),
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"Text" => _("Please enter the master configuration password. This is NOT your LDAP password. It is stored in your config.cfg file. If this is the first time you log in, enter \"lam\".")),
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"237" => array ("ext" => "FALSE", "Headline" => _("Configuration wizard") . " - " . _("Base module"),
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"Text" => _("Every account type needs exactly one base module. This module provides a structural object class.")),
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"238" => array ("ext" => "FALSE", "Headline" => _("Session timeout"),
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"Text" => _("This is the time (in minutes) of inactivity after which a user is automatically logged off.")),
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"250" => array ("ext" => "FALSE", "Headline" => _("Account lists - Filters"),
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"Text" => _("Here you can input small filter expressions (e.g. 'value' or 'v*'). LAM will filter case-insensitive.")),
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// 300 - 399
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@ -719,10 +719,14 @@ class CfgMain {
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/** Password to change config.cfg */
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var $password;
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/** Time of inactivity before session times out (minutes) */
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var $sessionTimeout;
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/**
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* Loads preferences from config file
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*/
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function CfgMain() {
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$this->sessionTimeout = 30;
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$this->reload();
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}
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@ -742,11 +746,15 @@ class CfgMain {
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if (($line == "")||($line[0] == "#")) continue; // ignore comments
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// search keywords
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if (substr($line, 0, 10) == "password: ") {
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$this->password = substr($line, 10, strlen($line)-10);
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$this->password = substr($line, 10, strlen($line) - 10);
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continue;
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}
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if (substr($line, 0, 9) == "default: ") {
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$this->default = substr($line, 9, strlen($line)-9);
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$this->default = substr($line, 9, strlen($line) - 9);
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continue;
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}
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if (substr($line, 0, 16) == "sessionTimeout: ") {
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$this->sessionTimeout = intval(substr($line, 16, strlen($line) - 16));
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continue;
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}
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}
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@ -784,11 +792,17 @@ class CfgMain {
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$save_default = True;
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continue;
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}
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if (substr($file_array[$i], 0, 16) == "sessionTimeout: ") {
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$file_array[$i] = "sessionTimeout: " . $this->sessionTimeout . "\n";
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$save_sessionTimeout = True;
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continue;
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}
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}
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}
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// check if we have to add new entries (e.g. if user upgraded LAM and has an old config file)
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if (!$save_password == True) array_push($file_array, "\n\n# password to add/delete/rename configuration profiles\n" . "password: " . $this->password);
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if (!$save_default == True) array_push($file_array, "\n\n# default profile, without \".conf\"\n" . "default: " . $this->default);
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if (!$save_sessionTimeout == True) array_push($file_array, "\n\n# session timeout in minutes\n" . "sessionTimeout: " . $this->sessionTimeout);
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$file = @fopen($conffile, "w");
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if ($file) {
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for ($i = 0; $i < sizeof($file_array); $i++) fputs($file, $file_array[$i]);
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@ -28,11 +28,16 @@ $Id$
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* @author Roland Gruber
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*/
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/** configuration options */
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include_once('config.inc');
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/**
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* Starts a session and checks the environment.
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* The script is stopped if one of the checks fail.
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*/
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function startSecureSession() {
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// check if client IP is on the list of valid IPs
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checkClientIP();
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// start session
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if (isset($_SESSION)) unset($_SESSION);
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$sessionDir = substr(__FILE__, 0, strlen(__FILE__) - 17) . "/sess";
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@ -48,10 +53,15 @@ function startSecureSession() {
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// IP is invalid
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die();
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}
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// check if client IP is on the list of valid IPs
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checkClientIP();
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// check if session time has not expired
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// TODO
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if (($_SESSION['sec_sessionTime'] + (60 * $_SESSION['cfgMain']->sessionTimeout)) > time()) {
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// ok, update time
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$_SESSION['sec_sessionTime'] = time();
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}
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else {
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// session expired, logoff user
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logoffAndBackToLoginPage();
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}
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}
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/**
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@ -83,4 +93,45 @@ function getValidUserDNs($dn) {
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return array("uid=test,o=test", "uid=test2,o=test");
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}
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/**
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* Logs off the user and displays the login page.
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*
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*/
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function logoffAndBackToLoginPage() {
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// delete key and iv in cookie
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if (function_exists('mcrypt_create_iv')) {
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setcookie("Key", "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", 0, "/");
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setcookie("IV", "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", 0, "/");
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}
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// close LDAP connection
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@$_SESSION["ldap"]->destroy();
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// link back to login page
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$paths = array('./', '../', '../../', '../../../');
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$page = 'login.php';
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for ($i = 0; $i < sizeof($paths); $i++) {
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if (file_exists($paths[$i] . $page)) {
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$page = $paths[$i] . $page;
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break;
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}
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}
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echo $_SESSION['header'];
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echo "<title></title>\n";
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echo "</head>\n";
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echo "<body>\n";
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// print JavaScript refresh
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echo "<script type=\"text/javascript\">\n";
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echo "top.location.href = \"" . $page . "\";\n";
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echo "</script>\n";
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// print link if refresh does not work
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echo "<p>\n";
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echo "<a target=\"_top\" href=\"" . $page . "\">" . _("Your session expired, click here to go back to the login page.") . "</a>\n";
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echo "</p>\n";
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echo "</body>\n";
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echo "</html>\n";
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// destroy session
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session_destroy();
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unset($_SESSION);
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die();
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}
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?>
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@ -70,30 +70,30 @@ echo $_SESSION['header'];
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// check if submit button was pressed
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if ($_POST['submit']) {
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$errors = array();
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// set master password
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if (isset($_POST['masterpassword']) && ($_POST['masterpassword'] != "")) {
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if ($_POST['masterpassword'] && $_POST['masterpassword2'] && ($_POST['masterpassword'] == $_POST['masterpassword2'])) {
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$cfg->password = $_POST['masterpassword'];
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$cfg->save();
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$msg = _("New master password set successfully.");
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unset($_SESSION["mainconf_password"]);
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}
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else $error = _("Master passwords are different or empty!");
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else $errors[] = _("Master passwords are different or empty!");
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}
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// set session timeout
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$cfg->sessionTimeout = $_POST['sessionTimeout'];
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// save settings
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$cfg->save();
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// print messages
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if (sizeof($errors) > 0) {
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for ($i = 0; $i < sizeof($errors); $i++) StatusMessage("ERROR", $errors[$i]);
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}
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else {
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$msg = _("No changes were made.");
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StatusMessage("INFO", _("Your settings were successfully saved."));
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// back to login page
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echo "<p><a href=\"../login.php\">" . _("Back to login") . "</a></p>";
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exit();
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}
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// print messages
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if ($error || $msg) {
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if ($error) StatusMessage("ERROR", "", $error);
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if ($msg) {
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StatusMessage("INFO", "", $msg);
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// back to login page
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echo "<p><a href=\"../login.php\">" . _("Back to login") . "</a></p>";
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exit();
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}
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}
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else exit;
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}
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?>
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@ -102,6 +102,40 @@ if ($_POST['submit']) {
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<form action="mainmanage.php" method="post">
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<table border="0">
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<tr><td>
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<fieldset>
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<legend><b> <?php echo _("Security settings"); ?> </b></legend>
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<p>
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<table cellspacing="0" border="0">
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<!-- session timeout -->
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<tr>
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<td align="right">
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<?php echo _("Session timeout"); ?>
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<SELECT name="sessionTimeout">
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<?php
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$options = array(5, 10, 20, 30, 60);
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for ($i = 0; $i < sizeof($options); $i++) {
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if ($cfg->sessionTimeout == $options[$i]) {
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echo "<option selected>" . $cfg->sessionTimeout . "</option>";
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}
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else {
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echo "<option>" . $options[$i] . "</option>";
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}
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}
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?>
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</SELECT>
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</td>
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<td>
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<?PHP
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// help link
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echo "<a href=\"../help.php?HelpNumber=238\" target=\"lamhelp\">";
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echo "<img src=\"../../graphics/help.png\" alt=\"" . _('Help') . "\" title=\"" . _('Help') . "\">";
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echo "</a>\n";
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?>
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</td>
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</tr>
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</table>
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</fieldset>
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<BR>
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<fieldset>
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<legend><b> <?php echo _("Change master password"); ?> </b></legend>
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<p>
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@ -110,7 +144,7 @@ if ($_POST['submit']) {
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<tr>
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<td align="right">
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<FONT color="Red"><B>
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<?php echo _("New master password") . ":"; ?>
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<?php echo _("New master password"); ?>
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</B></FONT>
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<input type="password" name="masterpassword">
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</td>
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@ -126,7 +160,7 @@ if ($_POST['submit']) {
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<tr>
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<td align="right">
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<FONT color="Red"><B>
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<?php echo _("Reenter new master password") . ":"; ?>
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<?php echo _("Reenter new master password"); ?>
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</B></FONT>
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<input type="password" name="masterpassword2">
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</td>
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@ -367,6 +367,7 @@ if(!empty($_POST['checklogin']))
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// set security settings for session
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$_SESSION['sec_session_id'] = session_id();
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$_SESSION['sec_client_ip'] = $_SERVER['REMOTE_ADDR'];
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$_SESSION['sec_sessionTime'] = time();
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// Load main frame
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include("./main.php");
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}
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@ -407,6 +408,7 @@ else
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$default_Config = new CfgMain();
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$default_Profile = $default_Config->default;
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$_SESSION["config"] = new Config($default_Profile); // Create new Config object
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$_SESSION["cfgMain"] = $default_Config; // Create new CfgMain object
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display_LoginPage($_SESSION["config"]); // Load Login page
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}
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