<?php /* $Id$ This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/) Copyright (C) 2003 - 2006 Michael Duergner 2005 - 2010 Roland Gruber This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /** * Login form of LDAP Account Manager. * * @author Michael Duergner * @author Roland Gruber * @package main */ /** status messages */ include_once("../lib/status.inc"); /** check environment */ include '../lib/checkEnvironment.inc'; /** security functions */ include_once("../lib/security.inc"); /** self service functions */ include_once("../lib/selfService.inc"); /** access to configuration options */ include_once("../lib/config.inc"); // Include config.inc which provides Config class // set session save path if (strtolower(session_module_name()) == 'files') { session_save_path(dirname(__FILE__) . '/../sess'); } // start empty session and change ID for security reasons session_start(); session_destroy(); session_start(); session_regenerate_id(true); // save last selected login profile if(isset($_POST['profile'])) { setcookie("lam_default_profile", $_POST['profile'], time() + 365*60*60*24); } // init some session variables $default_Config = new LAMCfgMain(); $_SESSION["cfgMain"] = $default_Config; $default_Profile = $default_Config->default; if(isset($_COOKIE["lam_default_profile"])) { $default_Profile = $_COOKIE["lam_default_profile"]; } // Reload loginpage after a profile change if(isset($_POST['profileChange'])) { logNewMessage(LOG_DEBUG, "Change server profile to " . $_POST['profile']); $_SESSION['config'] = new LAMConfig($_POST['profile']); // Recreate the config object with the submited } // Load login page else { $_SESSION["config"] = new LAMConfig($default_Profile); // Create new Config object } $_SESSION['language'] = $_SESSION["config"]->get_defaultLanguage(); if (isset($_POST['language'])) { $_SESSION['language'] = $_POST['language']; // Write selected language in session } $current_language = explode(":",$_SESSION['language']); $_SESSION['header'] = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n\n"; $_SESSION['header'] .= "<html>\n<head>\n"; $_SESSION['header'] .= "<meta http-equiv=\"content-type\" content=\"text/html; charset=" . $current_language[1] . "\">\n"; $_SESSION['header'] .= "<meta http-equiv=\"pragma\" content=\"no-cache\">\n <meta http-equiv=\"cache-control\" content=\"no-cache\">"; /** * Displays the login window. * * @param object $config_object current active configuration */ function display_LoginPage($config_object) { logNewMessage(LOG_DEBUG, "Display login page"); global $error_message; // generate 256 bit key and initialization vector for user/passwd-encryption // check if we can use /dev/random otherwise use /dev/urandom or rand() if(function_exists('mcrypt_create_iv')) { $key = @mcrypt_create_iv(32, MCRYPT_DEV_URANDOM); if (! $key) { srand((double)microtime()*1234567); $key = mcrypt_create_iv(32, MCRYPT_RAND); } $iv = @mcrypt_create_iv(32, MCRYPT_DEV_URANDOM); if (! $iv) { srand((double)microtime()*1234567); $iv = mcrypt_create_iv(32, MCRYPT_RAND); } // save both in cookie setcookie("Key", base64_encode($key), 0, "/"); setcookie("IV", base64_encode($iv), 0, "/"); } // loading available languages from language.conf file $languagefile = "../config/language"; if(is_file($languagefile) == True) { $file = fopen($languagefile, "r"); $i = 0; while(!feof($file)) { $line = fgets($file, 1024); if($line == "" || $line == "\n" || $line[0] == "#") continue; // ignore comment and empty lines $value = explode(":", $line); $languages[$i]["link"] = $value[0] . ":" . $value[1]; $languages[$i]["descr"] = $value[2]; if(trim($line) == trim($_SESSION["language"])) { $languages[$i]["default"] = "YES"; } else { $languages[$i]["default"] = "NO"; } $i++; } fclose($file); } $profiles = getConfigProfiles(); setlanguage(); // setting correct language echo $_SESSION["header"]; ?> <title>LDAP Account Manager -Login-</title> <link rel="stylesheet" type="text/css" href="../style/layout.css"> <link rel="shortcut icon" type="image/x-icon" href="../graphics/favicon.ico"> </head> <body onload="focusLogin()"> <?php // set focus on password field echo "<script type=\"text/javascript\" language=\"javascript\">\n"; echo "<!--\n"; echo "function focusLogin() {\n"; if ($config_object->getLoginMethod() == LAMConfig::LOGIN_LIST) { echo "myElement = document.getElementsByName('passwd')[0];\n"; echo "myElement.focus();\n"; } else { echo "myElement = document.getElementsByName('username')[0];\n"; echo "myElement.focus();\n"; } echo "}\n"; echo "//-->\n"; echo "</script>\n"; ?> <p align="center"> <a href="http://www.ldap-account-manager.org/" target="_blank"><img src="../graphics/banner.jpg" border="1" alt="LDAP Account Manager"></a> </p> <table width="100%" border="0"> <tr> <td width="50%" align="left"> <a href="./config/index.php"><IMG alt="configuration" src="../graphics/tools.png"> <?php echo _("LAM configuration") ?></a> </td> <TD width="50%" align="right"> <?PHP if (!isLAMProVersion()) { echo "<a href=\"http://www.ldap-account-manager.org/lamcms/lamPro\">" . _("Want more features? Get LAM Pro!") . "</a>"; } ?> </TD> </tr> </table> <hr><br><br> <?php // check extensions $extList = getRequiredExtensions(); for ($i = 0; $i < sizeof($extList); $i++) { if (!extension_loaded($extList[$i])) { StatusMessage("ERROR", "A required PHP extension is missing!", $extList[$i]); echo "<br>"; } } // check TLS $useTLS = $config_object->getUseTLS(); if (isset($useTLS) && ($useTLS == "yes")) { if (!function_exists('ldap_start_tls')) { StatusMessage("ERROR", "Your PHP installation does not support TLS encryption!"); echo "<br>"; } } // check if session expired if (isset($_GET['expired'])) { StatusMessage("ERROR", _("Your session expired, please log in again.")); echo "<br>"; } // check if main config was saved if (isset($_GET['confMainSavedOk'])) { StatusMessage("INFO", _("Your settings were successfully saved.")); echo "<br>"; } // check if a server profile was saved if (isset($_GET['configSaveOk'])) { StatusMessage("INFO", _("Your settings were successfully saved."), htmlspecialchars($_GET['configSaveFile'])); echo "<br>"; } elseif (isset($_GET['configSaveFailed'])) { StatusMessage("ERROR", _("Cannot open config file!"), htmlspecialchars($_GET['configSaveFile'])); echo "<br>"; } ?> <div style="position:relative; z-index:5;"> <table width="650" align="center" border="2" rules="none" bgcolor="white"> <tr> <td style="border-style:none" width="70" rowspan="2"> <img src="../graphics/lam.png" alt="Logo"> </td> <td style="border-style:none" width="580"> <form action="login.php" method="post"> <table width="580"> <tr> <td style="border-style:none" height="70" colspan="2" align="center"> <font color="#000080"><b><big><?php echo _("Please select your user name and enter your password to log in."); ?></big></b></font> </td> </tr> <tr> <td style="border-style:none" height="35" align="right"><b> <?php echo _("User name") . ":"; ?> </b> </td> <td style="border-style:none" height="35" align="left"> <?php if ($config_object->getLoginMethod() == LAMConfig::LOGIN_LIST) { echo '<select name="username" size="1" tabindex="0">'; $admins = $config_object->get_Admins(); for($i = 0; $i < count($admins); $i++) { $text = explode(",", $admins[$i]); $text = explode("=", $text[0]); echo '<option value="' . $admins[$i] . '">' . $text[1] . '</option>'; } echo '</select>'; } else { echo '<input type="text" name="username" tabindex="1">'; } ?> </td> </tr> <tr> <td style="border-style:none" height="35" align="right"><b> <?php echo _("Password") . ":"; ?> </b> </td> <td style="border-style:none" height="35" align="left"> <input type="password" name="passwd" tabindex="2"> </td> </tr> <tr> <td style="border-style:none" align="right"><b> <?php echo _("Language") . ":"; ?> </b> </td> <td style="border-style:none" height="35" align="left"> <select name="language" size="1" tabindex="3"> <?php for($i = 0; $i < count($languages); $i++) { if($languages[$i]["default"] == "YES") { ?> <option selected value="<?php echo $languages[$i]["link"] . ":" . $languages[$i]["descr"]; ?>"><?php echo $languages[$i]["descr"]; ?></option> <?php } else { ?> <option value="<?php echo $languages[$i]["link"] . ":" . $languages[$i]["descr"]; ?>"><?php echo $languages[$i]["descr"]; ?></option> <?php } } ?> </select> </td> </tr> <tr> <td style="border-style:none" height="50" colspan="2" align="center"> <input name="checklogin" type="hidden" value="checklogin"> <input name="submit" type="submit" value="<?php echo _("Login"); ?>" tabindex="4"> </td> </tr> <tr> <td style="border-style:none" colspan="2" align="center"> <?php if($error_message != "") { echo "<font color=\"red\"><b>" . $error_message . "</b></font>"; } ?> </td> </tr> </table> </form> </td> </tr> <tr> <td style="border-style:none"> <form action="login.php" method="post"> <table width="580"> <tr> <td style="border-style:none" height="30" colspan="2"> <hr> <b> <?php echo _("LDAP server") . ": "; ?></b> <?php echo $config_object->get_ServerURL(); ?> </td> </tr> <tr> <td style="border-style:none" height="30"><b> <?php echo _("Server profile") . ": "; if(empty($_POST['profileChange'])) { $_POST['profile'] = $_SESSION['config']->getName(); } ?></b> <?php echo $_POST['profile']; ?> </td> <td style="border-style:none" height="30" align="right"> <select name="profile" size="1" tabindex="5"> <?php for($i=0;$i<count($profiles);$i++) { ?> <option value="<?php echo $profiles[$i]; ?>"><?php echo $profiles[$i]; ?></option> <?php } ?> </select> <input name="profileChange" type="hidden" value="profileChange"> <input name="submit" type="submit" value="<?php echo _("Change profile"); ?>" tabindex="6"> </td> </tr> <tr> <td style="border-style:none" height="10" colspan="2"></td> </tr> </table> </form> </td> </tr> </table> </div> <br><br> <TABLE style="position:absolute; bottom:10px;" border="0" width="99%"> <TR><TD align="right"><HR> <SMALL> <?php if (isLAMProVersion()) { echo "LDAP Account Manager <b>Pro</b>: <b>" . LAMVersion() . "</b> "; logNewMessage(LOG_DEBUG, "LAM Pro " . LAMVersion()); } else { echo "LDAP Account Manager: <b>" . LAMVersion() . "</b> "; logNewMessage(LOG_DEBUG, "LAM " . LAMVersion()); } ?> </SMALL> </TD></TR> </TABLE> </body> </html> <?php } // checking if the submitted username/password is correct. if(!empty($_POST['checklogin'])) { include_once("../lib/ldap.inc"); // Include ldap.php which provides Ldap class $_SESSION['ldap'] = new Ldap($_SESSION['config']); // Create new Ldap object if($_POST['passwd'] == "") { logNewMessage(LOG_DEBUG, "Empty password for login"); $error_message = _("Empty password submitted. Please try again."); display_LoginPage($_SESSION['config']); // Empty password submitted. Return to login page. exit(); } else { $clientSource = $_SERVER['REMOTE_ADDR']; if (isset($_SERVER['REMOTE_HOST'])) { $clientSource .= '/' . $_SERVER['REMOTE_HOST']; } if (get_magic_quotes_gpc() == 1) { $_POST['passwd'] = stripslashes($_POST['passwd']); } $username = $_POST['username']; // search user in LDAP if needed if ($_SESSION['config']->getLoginMethod() == LAMConfig::LOGIN_SEARCH) { $searchFilter = $_SESSION['config']->getLoginSearchFilter(); $searchFilter = str_replace('%USER%', $username ,$searchFilter); $searchSuccess = true; $searchError = ''; $searchLDAP = new Ldap($_SESSION['config']); $searchLDAPResult = $searchLDAP->connect('', '', true); if (! ($searchLDAPResult == 0)) { $searchSuccess = false; $searchError = _('Cannot connect to specified LDAP server. Please try again.') . ' ' . @ldap_error($searchLDAP->server()); } else { $searchResult = @ldap_search($searchLDAP->server(), $_SESSION['config']->getLoginSearchSuffix(), $searchFilter, array('dn'), 0, 0, 0, LDAP_DEREF_NEVER); if ($searchResult) { $searchInfo = @ldap_get_entries($searchLDAP->server(), $searchResult); if ($searchInfo) { $searchInfo = cleanLDAPResult($searchInfo); if (sizeof($searchInfo) == 0) { $searchSuccess = false; $searchError = _('Wrong password/user name combination. Please try again.'); } elseif (sizeof($searchInfo) > 1) { $searchSuccess = false; $searchError = _('The given user name matches multiple LDAP entries.'); } else { $username = $searchInfo[0]['dn']; } } else { $searchSuccess = false; $searchError = _('Unable to find the user name in LDAP.'); if (ldap_errno($searchLDAP->server()) != 0) $searchError .= ' ' . ldap_error($searchLDAP->server()); } } else { $searchSuccess = false; $searchError = _('Unable to find the user name in LDAP.'); if (ldap_errno($searchLDAP->server()) != 0) $searchError .= ' ' . ldap_error($searchLDAP->server()); } } if (!$searchSuccess) { $error_message = $searchError; logNewMessage(LOG_ERR, 'User ' . $_POST['username'] . ' (' . $clientSource . ') failed to log in. ' . $searchError . ''); $searchLDAP->close(); display_LoginPage($_SESSION['config']); exit(); } $searchLDAP->close(); } // try to connect to LDAP $result = $_SESSION['ldap']->connect($username,$_POST['passwd']); // Connect to LDAP server for verifing username/password if($result === 0) {// Username/password correct. Do some configuration and load main frame. $_SESSION['loggedIn'] = true; // set security settings for session $_SESSION['sec_session_id'] = session_id(); $_SESSION['sec_client_ip'] = $_SERVER['REMOTE_ADDR']; $_SESSION['sec_sessionTime'] = time(); // logging logNewMessage(LOG_NOTICE, 'User ' . $_POST['username'] . ' (' . $clientSource . ') successfully logged in.'); // Load main frame metaRefresh("./main.php"); die(); } else { if ($result === False) { // connection failed $error_message = _("Cannot connect to specified LDAP server. Please try again."); logNewMessage(LOG_ERR, 'User ' . $_POST['username'] . ' (' . $clientSource . ') failed to log in (LDAP error: ' . ldap_err2str($result) . ').'); } elseif ($result == 81) { // connection failed $error_message = _("Cannot connect to specified LDAP server. Please try again."); logNewMessage(LOG_ERR, 'User ' . $_POST['username'] . ' (' . $clientSource . ') failed to log in (LDAP error: ' . ldap_err2str($result) . ').'); } elseif ($result == 49) { // user name/password invalid. Return to login page. $error_message = _("Wrong password/user name combination. Please try again."); logNewMessage(LOG_ERR, 'User ' . $_POST['username'] . ' (' . $clientSource . ') failed to log in (wrong password).'); } else { // other errors $error_message = _("LDAP error, server says:") . "\n<br>($result) " . ldap_err2str($result); logNewMessage(LOG_ERR, 'User ' . $_POST['username'] . ' (' . $clientSource . ') failed to log in (LDAP error: ' . ldap_err2str($result) . ').'); } display_LoginPage($_SESSION['config']); exit(); } } } display_LoginPage($_SESSION["config"]); ?>