From 7272e49c868f30d434965a59b1dc209925aec1b2 Mon Sep 17 00:00:00 2001
From: Till Brehm <tbrehm@ispconfig.org>
Date: Thu, 14 Aug 2014 03:58:25 -0400
Subject: [PATCH] Improved database library.

---
 interface/lib/classes/auth.inc.php |  115 ++++++++++++++++++++++++++++++++++++++++++---------------
 1 files changed, 85 insertions(+), 30 deletions(-)

diff --git a/interface/lib/classes/auth.inc.php b/interface/lib/classes/auth.inc.php
index 3bd5f5c..5be11cb 100644
--- a/interface/lib/classes/auth.inc.php
+++ b/interface/lib/classes/auth.inc.php
@@ -1,7 +1,7 @@
 <?php
 
 /*
-Copyright (c) 2008, Till Brehm, projektfarm Gmbh
+Copyright (c) 2007, Till Brehm, projektfarm Gmbh
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification,
@@ -29,7 +29,14 @@
 */
 
 class auth {
-	
+	var $client_limits = null;
+
+	public function get_user_id()
+	{
+		global $app;
+		return $app->functions->intval($_SESSION['s']['user']['userid']);
+	}
+
 	public function is_admin() {
 		if($_SESSION['s']['user']['typ'] == 'admin') {
 			return true;
@@ -38,30 +45,38 @@
 		}
 	}
 	
+	public function is_superadmin() {
+		if($_SESSION['s']['user']['typ'] == 'admin' && $_SESSION['s']['user']['userid'] === 1) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+
 	public function has_clients($userid) {
 		global $app, $conf;
-		
-		$userid = intval($userid);
+
+		$userid = $app->functions->intval($userid);
 		$client = $app->db->queryOneRecord("SELECT client.limit_client FROM sys_user, client WHERE sys_user.userid = $userid AND sys_user.client_id = client.client_id");
-		if($client['limit_client'] > 0) {
+		if($client['limit_client'] != 0) {
 			return true;
 		} else {
 			return false;
 		}
 	}
-	
+
 	//** This function adds a given group id to a given user.
-	public function add_group_to_user($userid,$groupid) {
+	public function add_group_to_user($userid, $groupid) {
 		global $app;
-		
-		$userid = intval($userid);
-		$groupid = intval($groupid);
-		
+
+		$userid = $app->functions->intval($userid);
+		$groupid = $app->functions->intval($groupid);
+
 		if($userid > 0 && $groupid > 0) {
 			$user = $app->db->queryOneRecord("SELECT * FROM sys_user WHERE userid = $userid");
-			$groups = explode(',',$user['groups']);
-			if(!in_array($groupid,$groups)) $groups[] = $groupid;
-			$groups_string = implode(',',$groups);
+			$groups = explode(',', $user['groups']);
+			if(!in_array($groupid, $groups)) $groups[] = $groupid;
+			$groups_string = implode(',', $groups);
 			$sql = "UPDATE sys_user SET groups = '$groups_string' WHERE userid = $userid";
 			$app->db->query($sql);
 			return true;
@@ -69,20 +84,41 @@
 			return false;
 		}
 	}
-	
+
+	//** This function returns given client limit as integer, -1 means no limit
+	public function get_client_limit($userid, $limitname)
+	{
+		global $app;
+		
+		$userid = $app->functions->intval($userid);
+		if(!preg_match('/^[a-zA-Z0-9\-\_]{1,64}$/',$limitname)) $app->error('Invalid limit name '.$limitname);
+		
+		// simple query cache
+		if($this->client_limits===null)
+			$this->client_limits = $app->db->queryOneRecord("SELECT client.* FROM sys_user, client WHERE sys_user.userid = $userid AND sys_user.client_id = client.client_id");
+
+		// isn't client -> no limit
+		if(!$this->client_limits)
+			return -1;
+
+		if(isset($this->client_limits['limit_'.$limitname])) {
+			return $this->client_limits['limit_'.$limitname];
+		}
+	}
+
 	//** This function removes a given group id from a given user.
-	public function remove_group_from_user($userid,$groupid) {
+	public function remove_group_from_user($userid, $groupid) {
 		global $app;
-		
-		$userid = intval($userid);
-		$groupid = intval($groupid);
-		
+
+		$userid = $app->functions->intval($userid);
+		$groupid = $app->functions->intval($groupid);
+
 		if($userid > 0 && $groupid > 0) {
 			$user = $app->db->queryOneRecord("SELECT * FROM sys_user WHERE userid = $userid");
-			$groups = explode(',',$user['groups']);
-			$key = array_search($groupid,$groups);
+			$groups = explode(',', $user['groups']);
+			$key = array_search($groupid, $groups);
 			unset($groups[$key]);
-			$groups_string = implode(',',$groups);
+			$groups_string = implode(',', $groups);
 			$sql = "UPDATE sys_user SET groups = '$groups_string' WHERE userid = $userid";
 			$app->db->query($sql);
 			return true;
@@ -90,17 +126,36 @@
 			return false;
 		}
 	}
-	
+
 	public function check_module_permissions($module) {
 		// Check if the current user has the permissions to access this module
-		if(!stristr($_SESSION["s"]["user"]["modules"],$module)) {
-			echo "LOGIN_REDIRECT:/index.php";
-			//header("Location: ../index.php");
+		$user_modules = explode(',',$_SESSION["s"]["user"]["modules"]);
+		if(!in_array($module,$user_modules)) {
+			// echo "LOGIN_REDIRECT:/index.php";
+			header("Location: /index.php");
 			exit;
 		}
 	}
-	
-	
+
+	public function get_random_password($length = 8) {
+		$base64_alphabet='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+		$password = '';
+		for ($n=0;$n<$length;$n++) {
+			$password.=$base64_alphabet[mt_rand(0, 63)];
+		}
+		return $password;
+	}
+
+	public function crypt_password($cleartext_password) {
+		$salt="$1$";
+		$base64_alphabet='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+		for ($n=0;$n<8;$n++) {
+			$salt.=$base64_alphabet[mt_rand(0, 63)];
+		}
+		$salt.="$";
+		return crypt($cleartext_password, $salt);
+	}
+
 }
 
-?>
\ No newline at end of file
+?>

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