From 897b35aeddd117409af95b270ec8309c2a564aaa Mon Sep 17 00:00:00 2001
From: Karl 'vollmerk' Vollmer <vollmer@ampache.org>
Date: Thu, 20 Dec 2007 07:31:00 +0000
Subject: fixed issues with user edit and create, fixed seek errors (Thx Karl
 Hungus) started digging myself out of the session tarded hole I created, API
 is broken with this commit

---
 lib/class/vauth.class.php | 352 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 352 insertions(+)
 create mode 100644 lib/class/vauth.class.php

(limited to 'lib/class/vauth.class.php')

diff --git a/lib/class/vauth.class.php b/lib/class/vauth.class.php
new file mode 100644
index 00000000..d0f68e7e
--- /dev/null
+++ b/lib/class/vauth.class.php
@@ -0,0 +1,352 @@
+<?php
+/*
+
+ Copyright (c) 2001 - 2007 Ampache.org
+ All Rights Reserved
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License v2
+ as published by the Free Software Foundation.
+
+ 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. 
+
+*/
+/** 
+ * Vauth
+ * This class handles all of the session related stuff in Ampache
+ * it takes over for the vauth libs, and takes some stuff out of other
+ * classes where it didn't belong
+*/
+class vauth {
+
+	/* Variables from DB */
+
+
+	/**
+	 * Constructor
+	 * This should never be called
+	 */
+	private function __construct() { 
+
+		// Rien a faire
+
+	} // __construct
+
+	/**
+	 * open
+	 * This function is for opening a new session so we just verify that we have
+	 * a database connection, nothing more is needed
+	 */
+	public static function open($save_path,$session_name) { 
+
+		if (!is_resource(Dba::dbh())) { 
+			debug_event('SESSION','Error no database connection session failed','1'); 
+			return false; 
+		} 
+
+		return true; 
+
+	} // open
+
+	/**
+	 * close
+	 * This is run on the end of a sessoin, nothing to do here for now
+	 */
+	public static function close() { 
+
+		return true; 
+
+	} // close
+
+	/**
+	 * read
+	 * This takes a key and then looks in the database and returns the value
+	 */
+	public static function read($key) { 
+
+		$results = self::get_session_data($key); 
+		if (strlen($results['value']) < 1) { 
+			debug_event('SESSION','Error unable to read session from key ' . $key . ' no data found','1'); 
+			return ''; 
+		} 
+
+		return $results['value']; 
+
+	} // read
+
+	/**
+	 * write
+	 * This saves the sessoin information into the database
+	 */
+	public static function write($key,$value) { 
+
+
+		$length		= Config::get('session_length'); 
+		$value		= Dba::escape($value); 
+		$key 		= Dba::escape($key); 
+		// Check to see if remember me cookie is set, if so use remember length, otherwise use the session length
+		$expire		= isset($_COOKIE[Config::get('session_name') . '_remember']) ? time() + Config::get('remember_length') : time() + Config::get('session_length');  
+
+		$sql = "UPDATE `session` SET `value`='$value', `expire`='$expire' WHERE `id`='$key'"; 
+		$db_results = Dba::query($sql); 
+
+		return $db_results; 
+
+	} // write
+
+	/**
+	 * destroy
+	 * This removes the specified sessoin from the database
+	 */
+	public static function destroy($key) { 
+
+		$key = Dba::escape($key); 
+
+		// Remove anything and EVERYTHING
+		$sql = "DELETE FROM `session` WHERE `id`='$key'"; 
+		$db_results = Dba::query($sql); 
+
+		// Destory our cookie!
+		setcookie(Config::get('session_name'),'',time() - 86400); 
+
+		return true;
+
+	} // destroy
+
+	/**
+	 * gc
+	 * This function is randomly called and it cleans up the poo
+	 */
+	public static function gc($maxlifetime) { 
+
+		$sql = "DELETE FROM `session` WHERE `expire` < '" . time() . "'"; 
+		$db_results = Dba::query($sql); 
+
+		return true; 
+
+	} // gc
+
+	/**
+	 * logout
+	 * This is called when you want to log out and nuke your session
+	 * //FIXME: move all logout logic here
+	 */
+	public static function logout($key) { 
+
+		self::destroy($key); 
+		return true; 
+
+	} // logout
+
+	/**
+	 * get_session_data
+	 * This takes a key and returns the raw data from the database, nothing to
+	 * see here move along people
+	 */
+	public static function get_session_data($key) { 
+
+		$key = Dba::escape($key); 
+
+		$sql = "SELECT * FROM `session` WHERE `id`='$key' AND `expire` > '" . time() . "'"; 
+		$db_results = Dba::query($sql); 
+
+		$results = Dba::fetch_assoc($db_results); 
+
+		if (!count($results)) { 
+			return false; 
+		} 
+
+		return $results; 
+
+	} // get_session_data
+
+	/**
+	 * create_cookie
+	 * This is seperated into it's own function because of some flaws in specific
+	 * webservers *cough* IIS *cough* which prevent us from setting a cookie at the
+	 * same time as a header redirect. As such on view of a login a cookie is set with
+	 * the proper name
+	 */
+	public static function create_cookie() { 
+
+		/* Setup the cookie prefs before we throw down, this is very important */
+		$cookie_life	= Config::get('cookie_life'); 
+		$cookie_path	= Config::get('cookie_path'); 
+		$cookie_domain	= false; 
+		$cookie_secure	= Config::get('cookie_secure'); 
+
+		session_set_cookie_params($cookie_life,$cookie_path,$cookie_domain,$cookie_secure); 
+
+		/* Start the session */
+		self::ungimp_ie(); 
+		session_start(); 
+
+	} // create_cookie, just watch out for the cookie monster
+
+	/**
+	 * session_create
+	 * This is called when you want to create a new session
+	 * it takes care of setting the initial cookie, and inserting the first chunk of 
+	 * data, nifty ain't it!
+	 */
+	public static function session_create($data) { 
+
+		// Regenerate the session ID to prevent fixation
+		session_regenerate_id(); 
+	
+		// Create our cookie!
+		self::create_cookie(); 
+
+		// Before refresh we don't have the cookie so we have to use session ID
+		$key = session_id(); 
+		
+	        $username       = Dba::escape($data['username']);
+	        $ip             = Dba::escape(ip2int($_SERVER['REMOTE_ADDR']));
+	        $type           = Dba::escape($data['type']);
+	        $value          = Dba::escape($data['value']);
+		$agent		= Dba::escape($_SERVER['HTTP_USER_AGENT']); 
+	        $expire         = Dba::escape(time() + vauth_conf('session_length'));
+
+	        /* We can't have null things here people */
+	        if (!strlen($value)) { $value = ' '; }
+
+	        /* Insert the row */
+	        $sql = "INSERT INTO `session` (`id`,`username`,`ip`,`type`,`agent`,`value`,`expire`) " .
+	                " VALUES ('$key','$username','$ip','$type','$agent','$value','$expire')";
+	        $db_results = Dba::query($sql);
+
+	        if (!$db_results) {
+	                debug_event('SESSION',"Session Creation Failed with Query: $sql and " . Dba::error(),'1');
+	        }
+
+	        return $db_results;
+
+	} // session_create
+
+	/**
+	 * check_session
+	 * This checks for an existing sessoin and if it's still valid then go ahead and start it and return
+	 * true
+	 */
+	public static function check_session() { 
+
+		// No cookie n go!
+		if (!isset($_COOKIE[Config::get('session_name')]) { return false; }
+
+		$key = scrub_in($_COOKIE[Config::get('session_name')]); 
+		$data = self::get_session_data($key); 
+
+		if (!is_array($results)) { 
+			return false; 
+		} 
+
+		// Check for a remember me
+		if (isset($_COOKIE[Config::get('session_name') . '_remember'])) { 
+			Config::set('cookie_life',Config::get('remember_length'),'1'); 
+			setcookie(Config::get('session_name') . '_remember',time() + Config::get('remember_length'),'/',Config::get('cookie_domain')); 
+		} 
+
+		// Setup the cookie params before we start the session this is vital
+		session_set_cookie_params(
+			Config::get('cookie_life'),
+			Config::get('cookie_path'),
+			Config::get('cookie_domain'),
+			Config::get('cookie_secure')); 
+		
+		// Set name
+		session_name(Config::get('session_name')); 
+
+		// Ungimp IE and go
+		self::ungimp_io(); 
+		session_start(); 
+
+		return true; 
+
+	} // check_session
+
+	/**
+	 * session_exists
+	 * This checks to see if the specified session of the specified type
+	 * exists, it also provides an array of key'd data that may be required
+	 * based on the type
+	 */
+	public static function session_exists($data,$key,$type) { 
+
+		// Switch on the type they pass
+		switch ($type) { 
+			case 'xml-rpc': 
+			case 'interface':
+			case 'api': 
+				$key = Dba::escape($key); 
+				$time = time(); 
+				$sql = "SELECT * FROM `session` WHERE `id`='$key' AND `expire` > '$time' AND `type`='$type'"; 
+				$db_results = Dba::query($sql); 
+
+				if (Dba::num_rows($db_results)) { 
+					return true; 
+				} 
+			break; 
+			case 'stream': 
+				$key	= Dba::escape($key); 
+				$ip	= ip2int($data['ip']);
+				$agent	= Dba::escape($data['agent']); 
+				$sql = "SELECT * FROM `session_stream` WHERE `id`='$key' AND `expire` > '$time' AND `ip`='$ip' AND `agent`='$agent'"; 
+				$db_results = Dba::query($sql); 
+
+				if (Dba::num_rows($db_results)) { 
+					return true; 
+				} 
+				
+			break; 
+			default: 
+				return false; 
+			break; 
+		} // type
+
+		// Default to false
+		return false; 
+
+	} // session_exists
+
+	/**
+	 * _auto_init
+	 * This function is called when the object is included, this sets up the session_save_handler
+	 */
+	public static function _auto_init() { 
+
+		session_set_save_handler('vauth::open','vauth::close','vauth::read','vauth::write','vauth::destroy','vauth::gc'); 
+
+	} // auto init
+
+	/**
+	 * ungimp_ie
+	 * This function sets the cache limiting to public if you are running
+	 * some flavor of IE. The detection used here is very conservative so feel free
+	 * to fix it. This only has to be done if we're rolling HTTPS
+	 */
+	public static function ungimp_ie() { 
+
+		// If no https, no ungimpage required
+		if ($_SERVER['HTTPS'] != 'on') { return true; } 
+
+		// Try to detect IE
+		$agent = trim($_SERVER['HTTP_USER_AGENT']); 
+
+		if ((preg_match('|MSIE ([0-9).]+)|',$agent)) || preg_match('|Internet Explorer/([0-9.]+)|',$agent))) { 
+			session_cache_limiter('public'); 
+		} 
+
+		return true; 
+
+	} // ungimp_ie
+
+} // end of vauth class
+
+?>
-- 
cgit