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<?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.

*/

define('NO_SESSION','1');
require_once 'lib/init.php';

/* We have to create a cookie here because IIS
 * can't handle Cookie + Redirect 
 */
vauth_session_cookie();
init_preferences();

/**
 * If Access Control is turned on then we don't
 * even want them to be able to get to the login 
 * page if they aren't in the ACL
 */
if (Config::get('access_control')) { 
        if (!Access::check_network('interface',$_SERVER['REMOTE_ADDR'],'','5')) {
                debug_event('access_denied','Access Denied:' . $_SERVER['REMOTE_ADDR'] . ' is not in the Interface Access list','3');
                access_denied();
		exit(); 
        }
} // access_control is enabled

/* Clean Auth values */
unset($auth);

/* Check for posted username and password */
if ($_POST['username'] && $_POST['password']) {

        if ($_POST['rememberme']) {
		$extended = vauth_conf('remember_length');
		vauth_conf(array('cookie_life'=>$extended),1);
		$cookie_name = vauth_conf('session_name') . "_remember";
		$cookie_life = time() + $extended;
		setcookie($cookie_name, '1', $cookie_life,'/',vauth_conf('cookie_domain'));
        } 

	/* If we are in demo mode let's force auth success */
	if (Config::get('demo_mode')) {
		$auth['success'] = 1;
		$auth['info']['username'] = "Admin- DEMO";
		$auth['info']['fullname'] = "Administrative User";
		$auth['info']['offset_limit']	= 25;
	}
	else {
		$username = scrub_in($_POST['username']);
		$password = scrub_in($_POST['password']);
		$auth = authenticate($username, $password);
                $user = User::get_from_username($username);
		
		if ($user->disabled == '1') { 	
                                $auth['success'] = false;
				Error::add('general',_('User Disabled please contact Admin')); 
                } // if user disabled
                
		elseif (!$user->username AND $auth['success']) { 
			/* This is run if we want to auto_create users who don't exist (usefull for non mysql auth) */                
			if (Config::get('auto_create')) {
				if (!$access = Config::get('auto_user')) { $access = '5'; } 
				
                        	$name = $auth['name'];
                        	$email = $auth['email'];
                        
				/* Attempt to create the user */	
				if (!$user->create($username, $name, $email,md5(mt_rand()), $access)) {
                                	$auth['success'] = false;
					Error::add('general',_('Unable to create new account')); 
                            	}
				else { 
                        		$user = new User($username);
				}
                        } // End if auto_create

                        else {
                            $auth['success'] = false;
			    Error::add('general',_('No local account found')); 
                        }
                } // else user isn't disabled

	} // if we aren't in demo mode

} // if they passed a username/password

/* If the authentication was a success */
if ($auth['success']) {
	// $auth->info are the fields specified in the config file
	//   to retrieve for each user
	vauth_session_create($auth);
	
	// Generate the user we need for a few things
	$user = User::get_from_username($username);

	//
	// Not sure if it was me or php tripping out,
	//   but naming this 'user' didn't work at all
	//
	$_SESSION['userdata'] = $auth;
	
	// 
	// Record the IP of this person!
	// 
	if (Config::get('track_user_ip')) { 
		$user->insert_ip_history();	
	}

	// Reload the Preferences from the database
	init_preferences();
	
	// Do the handshake with LastFM if they are configured as such to let it know we might submit some stuff soon
	if ($user->prefs['lastfm_user'] AND $user->prefs['lastfm_pass']) { 
		$lastfm = new scrobbler($user->prefs['lastfm_user'],$user->prefs['lastfm_pass']);
		
		/* Attempt handshake */
		$handshake = $lastfm->handshake();
		if (!$handshake) { 
			debug_event('LastFM','Handshake Failed: ' . $lastfm->error_msg,'3'); 
		} 

		// Update the preferences
		Preference::update('lastfm_port',$user->id,$handshake['submit_port']); 
		Preference::update('lastfm_host',$user->id,$handshake['submit_host']); 
		Preference::update('lastfm_url',$user->id,$handshake['submit_url']); 
		Preference::update('lastfm_challenge',$user->id,$handshake['challenge']); 

	}  // if LastFM


	/* Make sure they are actually trying to get to this site and don't try to redirect them back into 
	 * an admin section
	**/
	if (substr($_POST['referrer'],0,strlen(Config::get('web_path'))) == Config::get('web_path') AND 
		!strstr($_POST['referrer'],"install.php") AND 
		!strstr($_POST['referrer'],"login.php") AND 
		!strstr($_POST['referrer'],"update.php") AND
		!strstr($_POST['referrer'],"activate.php") AND
		!strstr($_POST['referrer'],"admin")) { 
		
			header("Location: " . $_POST['referrer']);
			exit();
	} // if we've got a referrer
	header("Location: " . Config::get('web_path') . "/index.php");
	exit();
} // auth success
/* If auth failed then setup the error */
else { 
	Error::add('general',$auth['error']);
}

require Config::get('prefix') . '/templates/show_login_form.inc';

if (@is_readable(Config::get('prefix') . '/config/motd.php')) {
	echo "<div align=\"center\">\n";
	show_box_top(_('Message of the Day')); 
        include Config::get('prefix') . '/config/motd.php';
	show_box_bottom();
	echo "</div>\n";
}

?>
</body>
</html>