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< ? php
/*
$Id $
This code is part of LDAP Account Manager ( http :// www . sourceforge . net / projects / lam )
Copyright ( C ) 2003 Michael Duergner
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
LDAP Account Manager checking login datas .
*/
include_once ( " ../lib/config.inc " ); // Include config.inc which provides Config class
session_save_path ( " ../sess " ); // Set session save path
@ session_start (); // Start LDAP Account Manager session
function display_LoginPage ( $config_object , $profile )
{
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_RANDOM );
if ( ! $key ) $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_RANDOM );
if ( ! $iv ) $iv = @ mcrypt_create_iv ( 32 , MCRYPT_DEV_URANDOM );
if ( ! $iv ) {
srand (( double ) microtime () * 1234567 );
$iv = mcrypt_create_iv ( 32 , MCRYPT_RAND );
}
}
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// use Blowfish if MCrypt is not available
else {
// generate iv and key for encryption
$key = " " ;
$iv = " " ;
while ( strlen ( $key ) < 30 ) $key .= mt_rand ();
while ( strlen ( $iv ) < 30 ) $iv .= mt_rand ();
}
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// save both in cookie
setcookie ( " Key " , base64_encode ( $key ), 0 , " / " );
setcookie ( " IV " , base64_encode ( $iv ), 0 , " / " );
$_SESSION [ 'language' ] = $config_object -> get_defaultLanguage ();
$current_language = explode ( " : " , $_SESSION [ 'language' ]);
$_SESSION [ 'header' ] = " <?xml version= \" 1.0 \" encoding= \" " . $current_language [ 1 ] . " \" ?> \n " ;
$_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 \" > " ;
// 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 ( rtrim ( $line ) == $_SESSION [ " language " ])
{
$languages [ $i ][ " default " ] = " YES " ;
}
else
{
$languages [ $i ][ " default " ] = " NO " ;
}
$i ++ ;
}
fclose ( $file );
}
else
{
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//TODO Generate Status message
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$message = _ ( " Unable to load available languages. Setting English as default language. For further instructions please contact the Admin of this site. " );
}
$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 " >
</ head >
< body >
< p align = " center " >
< a href = " http://lam.sf.net " target = " _blank " >< img src = " ../graphics/banner.jpg " border = " 1 " alt = " LDAP Account Manager " ></ a >
</ p >
< table width = " 100% " border = " 0 " >
< tr >
< td width = " 100% " align = " right " >
< a href = " ./config/conflogin.php " target = " _self " >< ? php echo _ ( " Configuration Login " ); ?> </a>
</ td >
</ tr >
</ table >
< hr >< br >< br >
< ? php
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// check if all password hashes are possible
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if (( ! function_exists ( 'mHash' )) && ( ! function_exists ( 'sha1' ))) {
StatusMessage ( " INFO " , " Your PHP does not support MHash or sha1(), you will only be able to use CRYPT/PLAIN/MD5/SMD5 for user passwords! " , " Please install MHash or update to PHP >4.3. " );
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echo " <br><br> " ;
}
// check if PHP has LDAP support
if ( ! function_exists ( 'ldap_search' )) {
StatusMessage ( " ERROR " , " Your PHP has no LDAP support! " , " Please install the LDAP extension for PHP. " );
echo " <br><br> " ;
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}
?>
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< form action = " login.php " method = " post " >
< table width = " 650 " align = " center " border = " 2 " rules = " none " bgcolor = " white " >
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< tr >
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< td style = " border-style:none " width = " 70 " rowspan = " 9 " >
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< img src = " ../graphics/lam.png " alt = " Logo " >
</ td >
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< td style = " border-style:none " height = " 70 " colspan = " 2 " align = " center " >
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< font color = " darkblue " >< b >< big >< ? php echo _ ( " Enter Username and Password for Account " ); ?> </big></b></font>
</ td >
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< td style = " border-style:none " rowspan = " 9 " width = " 70 " >
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& nbsp ;
</ td >
</ tr >
< tr >
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< td style = " border-style:none " height = " 35 " align = " right " >< b >
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< ? php
echo _ ( " Username " ) . " : " ;
?>
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</ b >& nbsp ; & nbsp ; </ td >
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< td style = " border-style:none " height = " 35 " align = " left " >
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< select name = " username " size = " 1 " >
< ? php
$admins = $config_object -> get_Admins ();
for ( $i = 0 ; $i < count ( $admins ); $i ++ ) {
$text = explode ( " , " , $admins [ $i ]);
$text = explode ( " = " , $text [ 0 ]);
?>
< option value = " <?php echo $admins[$i] ; ?> " >< ? php echo $text [ 1 ]; ?> </option>
< ? php
}
?>
</ select >
</ td >
</ tr >
< tr >
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< td style = " border-style:none " height = " 35 " align = " right " >< b >
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< ? php
echo _ ( " Password " ) . " : " ;
?>
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</ b >& nbsp ; & nbsp ; </ td >
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< td style = " border-style:none " height = " 35 " align = " left " >
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< input type = " password " name = " passwd " >
</ td >
</ tr >
< tr >
< ? php
if ( $message != " " ) {
?>
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< td height = " 35 " colspan = " 3 " align = " center " >
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< ? php
echo $message ;
?>
</ td >
< ? php
}
else
{
?>
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< td style = " border-style:none " align = " right " >< b >
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< ? php
echo _ ( " Your Language " ) . " : " ;
?>
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</ b >& nbsp ; & nbsp ; </ td >
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< td style = " border-style:none " height = " 35 " align = " left " >
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< select name = " language " size = " 1 " >
< ? 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 >
< ? php
}
?>
</ tr >
< tr >
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< td style = " border-style:none " height = " 50 " colspan = " 2 " align = " center " >
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< input name = " checklogin " type = " hidden " value = " <?php echo _('Login'); ?> " >
< input type = " submit " value = " <?php echo _( " Login " ); ?> " >
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</ td >
</ tr >
< tr >
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< td style = " border-style:none " height = " 50 " colspan = " 2 " align = " center " >
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< ? php
if ( $error_message != " " ) {
echo " <font color= \" red \" ><b> " . $error_message . " </b></font> " ;
}
?>
</ td >
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</ tr >
< tr >
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< td style = " border-style:none " height = " 30 " colspan = " 2 " >
< hr >
< b >
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< ? php
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echo _ ( " LDAP server " ) . " : " ;
?> </b>
< ? php echo $config_object -> get_ServerURL (); ?>
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</ td >
</ tr >
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< tr >
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< td style = " border-style:none " height = " 30 " >< b >
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< ? php
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echo _ ( " Configuration profile " ) . " : " ;
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if ( ! $_POST [ 'profileChange' ]) {
$_POST [ 'profile' ] = $_SESSION [ 'config' ] -> file ;
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}
?> </b>
< ? php echo $_POST [ 'profile' ]; ?>
</ td >
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< td style = " border-style:none " height = " 30 " align = " right " >
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< select name = " profile " size = " 1 " >
< ? php
for ( $i = 0 ; $i < count ( $profiles ); $i ++ ) {
?>
< option value = " <?php echo $profiles[$i] ; ?> " >< ? php echo $profiles [ $i ]; ?> </option>
< ? php
}
?>
</ select >
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< input name = " profileChange " type = " submit " value = " <?php echo _( " Change Profile " ); ?> " >
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</ td >
</ tr >
< tr >
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< td style = " border-style:none " height = " 10 " colspan = " 2 " ></ td >
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</ tr >
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</ table >
</ form >
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< br >< br >
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</ body >
</ html >
< ? php
}
// checking if the submitted username/password is correct.
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if ( $_POST [ 'checklogin' ])
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{
$_SESSION [ 'lampath' ] = realpath ( '../' ) . " / " ; // Save full path to lam in session
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' ] == " " )
{
$error_message = _ ( " Empty Password submitted. Try again. " );
display_LoginPage ( $_SESSION [ 'config' ], " " ); // Empty password submitted. Return to login page.
}
else
{
$result = $_SESSION [ 'ldap' ] -> connect ( $_POST [ '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 ;
$_SESSION [ 'language' ] = $_POST [ 'language' ]; // Write selected language in session
$current_language = explode ( " : " , $_SESSION [ 'language' ]);
$_SESSION [ 'header' ] = " <?xml version= \" 1.0 \" encoding= \" " . $current_language [ 1 ] . " \" ?> \n " ;
$_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 \" > " ;
include ( " ./main.php " ); // Load main frame
}
else
{
if ( $result === False )
{
$error_message = _ ( " Cannot connect to specified LDAP-Server. Please try again. " );
display_LoginPage ( $_SESSION [ 'config' ], " " ); // connection failed
}
elseif ( $result == 81 )
{
$error_message = _ ( " Cannot connect to specified LDAP-Server. Please try again. " );
display_LoginPage ( $_SESSION [ 'config' ], " " ); // connection failed
}
elseif ( $result == 49 )
{
$error_message = _ ( " Wrong Password/Username combination. Try again. " );
display_LoginPage ( $_SESSION [ 'config' ], " " ); // Username/password invalid. Return to login page.
}
else
{
$error_message = _ ( " LDAP error, server says: " ) . " \n <br>( $result ) " . ldap_err2str ( $result );
display_LoginPage ( $_SESSION [ 'config' ], " " ); // other errors
}
}
}
}
// Reload loginpage after a profile change
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elseif ( $_POST [ 'profileChange' ]) {
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$_SESSION [ 'config' ] = new Config ( $_POST [ 'profile' ]); // Recreate the config object with the submited
display_LoginPage ( $_SESSION [ 'config' ], " " ); // Load login page
}
// Load login page
else
{
$_SESSION [ 'loggedIn' ] = false ;
$default_Config = new CfgMain ();
$default_Profile = $default_Config -> default ;
$_SESSION [ " config " ] = new Config ( $default_Profile ); // Create new Config object
display_LoginPage ( $_SESSION [ " config " ], $default_Profile ); // Load Login page
}
?>
