From 37b29231e47a0c4458dc1c15d98588f16f07e1e2 Mon Sep 17 00:00:00 2001
From: Marius Cramer <m.cramer@pixcept.de>
Date: Thu, 06 Aug 2015 03:18:44 -0400
Subject: [PATCH] - don't set password via remoting if field is empty

---
 interface/web/login/index.php |  363 +++++++++++++++++++++++++++++++++++++--------------
 1 files changed, 261 insertions(+), 102 deletions(-)

diff --git a/interface/web/login/index.php b/interface/web/login/index.php
index 2f841a6..ddc6cfb 100644
--- a/interface/web/login/index.php
+++ b/interface/web/login/index.php
@@ -36,60 +36,108 @@
 	private $target = '';
 	private $app;
 	private $conf;
-	
+
 	public function render() {
-		
+
 		global $app, $conf;
-		
+
 		/* Redirect to page, if login form was NOT send */
 		if(count($_POST) == 0) {
 			if(isset($_SESSION['s']['user']) && is_array($_SESSION['s']['user']) && is_array($_SESSION['s']['module'])) {
 				die('HEADER_REDIRECT:'.$_SESSION['s']['module']['startpage']);
 			}
 		}
-		
+
 		$app->uses('tpl');
 		$app->tpl->newTemplate('form.tpl.htm');
-	    
-	    $error = '';
-		
+
+		$error = '';
+
 		$app->load_language_file('web/login/lib/lang/'.$conf["language"].'.lng');
-	
-	
-		//* Login Form was send
+
+		// Maintenance mode
+		$maintenance_mode = false;
+		$maintenance_mode_error = '';
+		$app->uses('ini_parser,getconf');
+		$server_config_array = $app->getconf->get_global_config('misc');
+		if($server_config_array['maintenance_mode'] == 'y'){
+			$maintenance_mode = true;
+			$maintenance_mode_error = $app->lng('error_maintenance_mode');
+		}
+
+		//* Login Form was sent
 		if(count($_POST) > 0) {
-			
+
 			//** Check variables
-			if(!preg_match("/^[\w\.\-\_]{1,64}$/", $_POST['username'])) $error = $app->lng('user_regex_error');
+			if(!preg_match("/^[\w\.\-\_\@]{1,128}$/", $_POST['username'])) $error = $app->lng('user_regex_error');
 			if(!preg_match("/^.{1,64}$/i", $_POST['passwort'])) $error = $app->lng('pw_error_length');
-			
-	        //** iporting variables
-	        $ip 	  = $app->db->quote(ip2long($_SERVER['REMOTE_ADDR']));
-	        $username = $app->db->quote($_POST['username']);
-	        $passwort = $app->db->quote($_POST['passwort']);
+
+			//** iporting variables
+			$ip    = ip2long($_SERVER['REMOTE_ADDR']);
+			$username = $_POST['username'];
+			$passwort = $_POST['passwort'];
 			$loginAs  = false;
-	
-	        if($username != '' && $passwort != '' && $error == '') {
+			$time = time();
+
+			if($username != '' && $passwort != '' && $error == '') {
 				/*
 				 *  Check, if there is a "login as" instead of a "normal" login
 				 */
 				if (isset($_SESSION['s']['user']) && $_SESSION['s']['user']['active'] == 1){
 					/*
-					 * only the admin can "login as" so if the user is NOT a admin, we
+					 * only the admin or reseller can "login as" so if the user is NOT an admin or reseller, we
 					 * open the startpage (after killing the old session), so the user
 					 * is logout and has to start again!
 					 */
-					if ($_SESSION['s']['user']['typ'] != 'admin') {
+					if ($_SESSION['s']['user']['typ'] != 'admin' && !$app->auth->has_clients($_SESSION['s']['user']['userid'])) {
 						/*
-						 * The actual user is NOT a admin, but maybe the admin
-						 * has logged in as "normal" user bevore...
+						 * The actual user is NOT a admin or reseller, but maybe he
+						 * has logged in as "normal" user before...
 						 */
-						if (isset($_SESSION['s_old'])&& ($_SESSION['s_old']['user']['typ'] == 'admin')){
-							/* The "old" user is admin, so everything is ok */
+						
+						if (isset($_SESSION['s_old'])&& ($_SESSION['s_old']['user']['typ'] == 'admin' || $app->auth->has_clients($_SESSION['s_old']['user']['userid']))){
+							/* The "old" user is admin or reseller, so everything is ok
+							 * if he is reseller, we need to check if he logs in to one of his clients
+							 */
+							if($_SESSION['s_old']['user']['typ'] != 'admin') {
+								
+								/* this is the one currently logged in (normal user) */
+								$old_client_group_id = $app->functions->intval($_SESSION["s"]["user"]["default_group"]);
+								$old_client = $app->db->queryOneRecord("SELECT client.client_id, client.parent_client_id FROM sys_group, client WHERE sys_group.client_id = client.client_id and sys_group.groupid = ?", $old_client_group_id);
+								
+								/* this is the reseller, that shall be re-logged in */
+								$sql = "SELECT * FROM sys_user WHERE USERNAME = ? and PASSWORT = ?";
+								$tmp = $app->db->queryOneRecord($sql, $username, $passwort);
+								$client_group_id = $app->functions->intval($tmp['default_group']);
+								$tmp_client = $app->db->queryOneRecord("SELECT client.client_id FROM sys_group, client WHERE sys_group.client_id = client.client_id and sys_group.groupid = ?", $client_group_id);
+								
+								if(!$tmp_client || $old_client["parent_client_id"] != $tmp_client["client_id"] || $tmp["default_group"] != $_SESSION["s_old"]["user"]["default_group"] ) {
+									die("You don't have the right to 'login as' this user!");
+								}
+								unset($old_client);
+								unset($tmp_client);
+								unset($tmp);
+							}
 						}
 						else {
 							die("You don't have the right to 'login as'!");
 						}
+					} elseif($_SESSION['s']['user']['typ'] != 'admin' && (!isset($_SESSION['s_old']['user']) || $_SESSION['s_old']['user']['typ'] != 'admin')) {
+						/* a reseller wants to 'login as', we need to check if he is allowed to */
+						$res_client_group_id = $app->functions->intval($_SESSION["s"]["user"]["default_group"]);
+						$res_client = $app->db->queryOneRecord("SELECT client.client_id FROM sys_group, client WHERE sys_group.client_id = client.client_id and sys_group.groupid = ?", $res_client_group_id);
+						
+						/* this is the user the reseller wants to 'login as' */
+						$sql = "SELECT * FROM sys_user WHERE USERNAME = ? and PASSWORT = ?";
+						$tmp = $app->db->queryOneRecord($sql, $username, $passwort);
+						$tmp_client = $app->db->queryOneRecord("SELECT client.client_id, client.parent_client_id FROM sys_group, client WHERE sys_group.client_id = client.client_id and sys_group.groupid = ?", $tmp["default_group"]);
+						
+						if(!$tmp || $tmp_client["parent_client_id"] != $res_client["client_id"]) {
+							die("You don't have the right to login as this user!");
+						}
+						unset($res_client);
+						unset($tmp);
+						unset($tmp_client);
 					}
 					$loginAs = true;
 				}
@@ -98,102 +146,213 @@
 					$loginAs = false;
 				}
 
-	        	//* Check if there are already wrong logins
-	        	$sql = "SELECT * FROM `attempts_login` WHERE `ip`= '{$ip}' AND  `login_time` > (NOW() - INTERVAL 1 MINUTE) LIMIT 1";
-	        	$alreadyfailed = $app->db->queryOneRecord($sql);
-	        	//* login to much wrong
-	        	if($alreadyfailed['times'] > 5) {
-	        		$error = $app->lng('error_user_too_many_logins');
-	        	} else {
+				//* Check if there are already wrong logins
+				$sql = "SELECT * FROM `attempts_login` WHERE `ip`= ? AND  `login_time` > (NOW() - INTERVAL 1 MINUTE) LIMIT 1";
+				$alreadyfailed = $app->db->queryOneRecord($sql, $ip);
+				//* too many failedlogins
+				if($alreadyfailed['times'] > 5) {
+					$error = $app->lng('error_user_too_many_logins');
+				} else {
+
 					if ($loginAs){
-			        	$sql = "SELECT * FROM sys_user WHERE USERNAME = '$username' and PASSWORT = '". $passwort. "'";
-						$user = $app->db->queryOneRecord($sql);
+						$sql = "SELECT * FROM sys_user WHERE USERNAME = ? and PASSWORT = ?";
+						$user = $app->db->queryOneRecord($sql, $username, $passwort);
 					} else {
-			        	$sql = "SELECT * FROM sys_user WHERE USERNAME = '$username'";
-						$user = $app->db->queryOneRecord($sql);
-						if($user && $user['active'] == 1) {
-							$saved_password = stripslashes($user['passwort']);
-							if(substr($saved_password,0,3) == '$1$') {
-								//* The password is crypt-md5 encrypted
-								$salt = '$1$'.substr($saved_password,3,8).'$';
-								if(crypt($passwort,$salt) != $saved_password) {
-									$user = false;
+						if(stristr($username, '@')) {
+							//* mailuser login
+							$sql = "SELECT * FROM mail_user WHERE login = ? or email = ?";
+							$mailuser = $app->db->queryOneRecord($sql, $username, $username);
+							$user = false;
+							if($mailuser) {
+								$saved_password = stripslashes($mailuser['password']);
+								$salt = '$1$'.substr($saved_password, 3, 8).'$';
+								//* Check if mailuser password is correct
+								if(crypt(stripslashes($passwort), $salt) == $saved_password) {
+									//* we build a fake user here which has access to the mailuser module only and userid 0
+									$user = array();
+									$user['userid'] = 0;
+									$user['active'] = 1;
+									$user['startmodule'] = 'mailuser';
+									$user['modules'] = 'mailuser';
+									$user['typ'] = 'user';
+									$user['email'] = $mailuser['email'];
+									$user['username'] = $username;
+									$user['language'] = $conf['language'];
+									$user['theme'] = $conf['theme'];
+									$user['app_theme'] = $conf['theme'];
+									$user['mailuser_id'] = $mailuser['mailuser_id'];
+									$user['default_group'] = $mailuser['sys_groupid'];
+								}
+							}
+
+						} else {
+							//* normal cp user login
+							$sql = "SELECT * FROM sys_user WHERE USERNAME = ?";
+							$user = $app->db->queryOneRecord($sql, $username);
+
+							if($user) {
+								$saved_password = stripslashes($user['passwort']);
+
+								if(substr($saved_password, 0, 3) == '$1$') {
+									//* The password is crypt-md5 encrypted
+									$salt = '$1$'.substr($saved_password, 3, 8).'$';
+
+									if(crypt(stripslashes($passwort), $salt) != $saved_password) {
+										$user = false;
+									}
+								} elseif(substr($saved_password, 0, 3) == '$5$') {
+									//* The password is crypt-sha256 encrypted
+									$salt = '$5$'.substr($saved_password, 3, 16).'$';
+
+									if(crypt(stripslashes($passwort), $salt) != $saved_password) {
+										$user = false;
+									}
+								} else {
+
+									//* The password is md5 encrypted
+									if(md5($passwort) != $saved_password) {
+										$user = false;
+									}
 								}
 							} else {
-								//* The password is md5 encrypted
-								if(md5($passwort) != $saved_password) {
-									$user = false;
-								}
+								$user = false;
 							}
-						} else {
-							$user = false;
 						}
 					}
-		            
-		            if($user) {
-		                if($user['active'] == 1) {
-		                	// User login right, so attempts can be deleted
-		                	$sql = "DELETE FROM `attempts_login` WHERE `ip`='{$ip}'";
-		                	$app->db->query($sql);
-		                	$user = $app->db->toLower($user);
-							if ($loginAs) $oldSession = $_SESSION['s'];
-		                    $_SESSION = array();
-							if ($loginAs) $_SESSION['s_old'] = $oldSession; // keep the way back!
-		                    $_SESSION['s']['user'] = $user;
-		                    $_SESSION['s']['user']['theme'] = isset($user['app_theme']) ? $user['app_theme'] : 'default';
-		                    $_SESSION['s']['language'] = $user['language'];
-							$_SESSION["s"]['theme'] = $_SESSION['s']['user']['theme'];
-										
-							if(is_file($_SESSION['s']['user']['startmodule'].'/lib/module.conf.php')) {
-								include_once($_SESSION['s']['user']['startmodule'].'/lib/module.conf.php');
-								$_SESSION['s']['module'] = $module;
+
+					if($user) {
+						if($user['active'] == 1) {
+							// Maintenance mode - allow logins only when maintenance mode is off or if the user is admin
+							if(!$maintenance_mode || $user['typ'] == 'admin'){
+								// User login right, so attempts can be deleted
+								$sql = "DELETE FROM `attempts_login` WHERE `ip`=?";
+								$app->db->query($sql, $ip);
+								$user = $app->db->toLower($user);
+
+								if ($loginAs) $oldSession = $_SESSION['s'];
+								session_regenerate_id();
+								$_SESSION = array();
+								if ($loginAs) $_SESSION['s_old'] = $oldSession; // keep the way back!
+								$_SESSION['s']['user'] = $user;
+								$_SESSION['s']['user']['theme'] = isset($user['app_theme']) ? $user['app_theme'] : 'default';
+								$_SESSION['s']['language'] = $user['language'];
+								$_SESSION["s"]['theme'] = $_SESSION['s']['user']['theme'];
+								
+								if(is_file($_SESSION['s']['user']['startmodule'].'/lib/module.conf.php')) {
+									include_once $_SESSION['s']['user']['startmodule'].'/lib/module.conf.php';
+									$menu_dir = ISPC_WEB_PATH.'/' . $_SESSION['s']['user']['startmodule'] . '/lib/menu.d';
+
+									if (is_dir($menu_dir)) {
+										if ($dh = opendir($menu_dir)) {
+											//** Go through all files in the menu dir
+											while (($file = readdir($dh)) !== false) {
+												if ($file != '.' && $file != '..' && substr($file, -9, 9) == '.menu.php' && $file != 'dns_resync.menu.php') {
+													include_once $menu_dir . '/' . $file;
+												}
+											}
+										}
+									}
+									$_SESSION['s']['module'] = $module;
+								}
+
+								// check if the user theme is valid
+								if($_SESSION['s']['user']['theme'] != 'default') {
+									$tmp_path = ISPC_THEMES_PATH."/".$_SESSION['s']['user']['theme'];
+									if(!@is_dir($tmp_path) || !@file_exists($tmp_path."/ispconfig_version") || trim(file_get_contents($tmp_path."/ispconfig_version")) != ISPC_APP_VERSION) {
+										// fall back to default theme if this one is not compatible with current ispc version
+										$_SESSION['s']['user']['theme'] = 'default';
+										$_SESSION['s']['theme'] = 'default';
+										$_SESSION['show_error_msg'] = $app->lng('theme_not_compatible');
+									}
+								}
+
+								$app->plugin->raiseEvent('login', $this);
+
+								//* Save successfull login message to var
+								$authlog = 'Successful login for user \''. $username .'\' from '. long2ip($ip) .' at '. date('Y-m-d H:i:s');
+								$authlog_handle = fopen($conf['ispconfig_log_dir'].'/auth.log', 'a');
+								fwrite($authlog_handle, $authlog ."\n");
+								fclose($authlog_handle);
+
+								/*
+								* We need LOGIN_REDIRECT instead of HEADER_REDIRECT to load the
+								* new theme, if the logged-in user has another
+								*/
+								echo 'LOGIN_REDIRECT:'.$_SESSION['s']['module']['startpage'];
+
+								exit;
 							}
-							echo 'HEADER_REDIRECT:'.$_SESSION['s']['module']['startpage'];
-										
-		                   	exit;
-		             	} else {
-		                	$error = $app->lng('error_user_blocked');
-		                }
-		        	} else {
-		        		if(!$alreadyfailed['times'] )
-		        		{
-		        			//* user login the first time wrong
-		        			$sql = "INSERT INTO `attempts_login` (`ip`, `times`, `login_time`) VALUES ('{$ip}', 1, NOW())";
-		        			$app->db->query($sql);
-		        		} elseif($alreadyfailed['times'] >= 1) {
-		        			//* update times wrong
-		        			$sql = "UPDATE `attempts_login` SET `times`=`times`+1, `login_time`=NOW() WHERE `login_time` >= '{$time}' LIMIT 1";
-		        			$app->db->query($sql);
-		        		}
-		            	//* Incorrect login - Username and password incorrect
-		                $error = $app->lng('error_user_password_incorrect');
-		                if($app->db->errorMessage != '') $error .= '<br />'.$app->db->errorMessage != '';
-		           	}
-	        	}
-	      	} else {
-	       		//* Username or password empty
-	            if($error == '') $error = $app->lng('error_user_password_empty');
-	        }
+						} else {
+							$error = $app->lng('error_user_blocked');
+						}
+
+					} else {
+						if(!$alreadyfailed['times'] )
+						{
+							//* user login the first time wrong
+							$sql = "INSERT INTO `attempts_login` (`ip`, `times`, `login_time`) VALUES (?, 1, NOW())";
+							$app->db->query($sql, $ip);
+						} elseif($alreadyfailed['times'] >= 1) {
+							//* update times wrong
+							$sql = "UPDATE `attempts_login` SET `times`=`times`+1, `login_time`=NOW() WHERE `ip` = ? AND `login_time` < NOW() ORDER BY `login_time` DESC LIMIT 1";
+							$app->db->query($sql, $ip);
+						}
+						//* Incorrect login - Username and password incorrect
+						$error = $app->lng('error_user_password_incorrect');
+						if($app->db->errorMessage != '') $error .= '<br />'.$app->db->errorMessage != '';
+
+						$app->plugin->raiseEvent('login_failed', $this);
+
+						//* Save failed login message to var
+						$authlog = 'Failed login for user \''. $username .'\' from '. long2ip($ip) .' at '. date('Y-m-d H:i:s');
+						$authlog_handle = fopen($conf['ispconfig_log_dir'].'/auth.log', 'a');
+						fwrite($authlog_handle, $authlog ."\n");
+						fclose($authlog_handle);
+					}
+				}
+
+			} else {
+				//* Username or password empty
+				if($error == '') $error = $app->lng('error_user_password_empty');
+
+				$app->plugin->raiseEvent('login_empty', $this);
+			}
 		}
+
+		// Maintenance mode - show message when people try to log in and also when people are forcedly logged off
+		if($maintenance_mode_error != '') $error = '<strong>'.$maintenance_mode_error.'</strong><br><br>'.$error;
 		if($error != ''){
-	  		$error = '<div class="box box_error"><h1>Error</h1>'.$error.'</div>';
+			$error = '<div class="box box_error">'.$error.'</div>';
 		}
-	
-	
-	
+		
+		$app->load('getconf');
+
+		$security_config = $app->getconf->get_security_config('permissions');
+		if($security_config['password_reset_allowed'] == 'yes') {
+			$app->tpl->setVar('pw_lost_show', 1);
+		} else {
+			$app->tpl->setVar('pw_lost_show', 0);
+		}
+		
 		$app->tpl->setVar('error', $error);
+		$app->tpl->setVar('error_txt', $app->lng('error_txt'));
+		$app->tpl->setVar('login_txt', $app->lng('login_txt'));
+		$app->tpl->setVar('pw_lost_txt', $app->lng('pw_lost_txt'));
 		$app->tpl->setVar('username_txt', $app->lng('username_txt'));
 		$app->tpl->setVar('password_txt', $app->lng('password_txt'));
+		$app->tpl->setVar('stay_logged_in_txt', $app->lng('stay_logged_in_txt'));
 		$app->tpl->setVar('login_button_txt', $app->lng('login_button_txt'));
-		$app->tpl->setInclude('content_tpl','login/templates/index.htm');
+		$app->tpl->setVar('session_timeout', $server_config_array['session_timeout']);
+		$app->tpl->setVar('session_allow_endless', $server_config_array['session_allow_endless']);
+		$app->tpl->setInclude('content_tpl', 'login/templates/index.htm');
 		$app->tpl_defaults();
-		
+
 		$this->status = 'OK';
-		
+
 		return $app->tpl->grab();
-		
+
 	} // << end function
 
 } // << end class
 
-?>
\ No newline at end of file
+?>

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