src/login.php

   1 <?php
   2
   3 /**
   4  * login.php -- simple login screen
   5  *
   6  * Copyright (c) 1999-2004 The SquirrelMail Project Team
   7  * Licensed under the GNU GPL. For full terms see the file COPYING.
   8  *
   9  * This a simple login screen. Some housekeeping is done to clean
  10  * cookies and find language.
  11  *
  12  * @version $Id$
  13  * @package squirrelmail
  14  */
  15
  16 /**
  17  * Path for SquirrelMail required files.
  18  * @ignore
  19  */
  20 define('SM_PATH','../');
  21
  22 /* SquirrelMail required files. */
  23 require_once(SM_PATH . 'functions/strings.php');
  24 require_once(SM_PATH . 'config/config.php');
  25 require_once(SM_PATH . 'functions/i18n.php');
  26 require_once(SM_PATH . 'functions/plugin.php');
  27 require_once(SM_PATH . 'functions/constants.php');
  28 require_once(SM_PATH . 'functions/page_header.php');
  29 require_once(SM_PATH . 'functions/html.php');
  30 require_once(SM_PATH . 'functions/global.php');
  31 require_once(SM_PATH . 'functions/imap_general.php');
  32 require_once(SM_PATH . 'functions/forms.php');
  33
  34 /**
  35  * $squirrelmail_language is set by a cookie when the user selects
  36  * language and logs out
  37  */
  38 set_up_language($squirrelmail_language, TRUE, TRUE);
  39
  40 /**
  41  * Find out the base URI to set cookies.
  42  */
  43 if (!function_exists('sqm_baseuri')){
  44     require_once(SM_PATH . 'functions/display_messages.php');
  45 }
  46 $base_uri = sqm_baseuri();
  47
  48 /*
  49  * In case the last session was not terminated properly, make sure
  50  * we get a new one.
  51  */
  52
  53 sqsession_destroy();
  54
  55 header('Pragma: no-cache');
  56
  57 /**
  58  * This detects if the IMAP server has logins disabled, and if so,
  59  * squelches the display of the login form and puts up a message
  60  * explaining the situation.
  61  */
  62 if($imap_auth_mech == 'login') {
  63     $imap = sqimap_create_stream($imapServerAddress, $imapPort, $use_imap_tls);
  64     $logindisabled = sqimap_capability($imap,'LOGINDISABLED');
  65     sqimap_logout($imap);
  66     if ($logindisabled) {
  67         $string = _("The IMAP server is reporting that logins are disabled.").'<br />';
  68         if (!$use_imap_tls) {
  69             $string .= _("The use of TLS may allow SquirrelMail to login.").'<br />';
  70         }
  71         $string .= _("Please contact your system administrator and report this error.");
  72         error_box($string,$color);
  73         exit;
  74     }
  75 }
  76
  77 do_hook('login_cookie');
  78
  79 /* Output the javascript onload function. */
  80
  81 $header = "<script language=\"JavaScript\" type=\"text/javascript\">\n" .
  82           "<!--\n".
  83           "  function squirrelmail_loginpage_onload() {\n".
  84           "    var textElements = 0;\n".
  85           "    for (i = 0; i < document.forms[0].elements.length; i++) {\n".
  86           "      if (document.forms[0].elements[i].type == \"text\" || document.forms[0].elements[i].type == \"password\") {\n".
  87           "        textElements++;\n".
  88           "        if (textElements == " . (isset($loginname) ? 2 : 1) . ") {\n".
  89           "          document.forms[0].elements[i].focus();\n".
  90           "          break;\n".
  91           "        }\n".
  92           "      }\n".
  93           "    }\n".
  94           "  }\n".
  95           "// -->\n".
  96           "</script>\n";
  97
  98 if (@file_exists($theme[$theme_default]['PATH']))
  99    @include ($theme[$theme_default]['PATH']);
 100
 101 displayHtmlHeader( "$org_name - " . _("Login"), $header, FALSE );
 102
 103 echo "<body text=\"$color[8]\" bgcolor=\"$color[4]\" link=\"$color[7]\" vlink=\"$color[7]\" alink=\"$color[7]\" onLoad=\"squirrelmail_loginpage_onload()\">" .
 104      "\n" . '<form action="redirect.php" method="post" onSubmit="document.forms[0].js_autodetect_results.value=\'' . SMPREF_JS_ON .'\';">' . "\n";
 105
 106 $username_form_name = 'login_username';
 107 $password_form_name = 'secretkey';
 108 do_hook('login_top');
 109
 110 $loginname_value = (sqGetGlobalVar('loginname', $loginname) ? htmlspecialchars($loginname) : '');
 111
 112 /* If they don't have a logo, don't bother.. */
 113 if (isset($org_logo) && $org_logo) {
 114     /* Display width and height like good little people */
 115     $width_and_height = '';
 116     if (isset($org_logo_width) && is_numeric($org_logo_width) &&
 117      $org_logo_width>0) {
 118         $width_and_height = " width=\"$org_logo_width\"";
 119     }
 120     if (isset($org_logo_height) && is_numeric($org_logo_height) &&
 121      $org_logo_height>0) {
 122         $width_and_height .= " height=\"$org_logo_height\"";
 123     }
 124 }
 125
 126 if(sqgetGlobalVar('mailto', $mailto)) {
 127     $rcptaddress = addHidden('mailto', $mailto);
 128 } else {
 129     $rcptaddress = '';
 130 }
 131 echo html_tag( 'table',
 132     html_tag( 'tr',
 133         html_tag( 'td',
 134             '<center>'.
 135             ( isset($org_logo) && $org_logo
 136               ? '<img src="' . $org_logo . '" alt="' .
 137                 sprintf(_("%s Logo"), $org_name) .'"' . $width_and_height .
 138                 ' /><br />' . "\n"
 139               : '' ).
 140             ( (isset($hide_sm_attributions) && $hide_sm_attributions) ? '' :
 141             '<small>' . sprintf (_("SquirrelMail version %s"), $version) . '<br />' ."\n".
 142             '  ' . _("By the SquirrelMail Development Team") . '<br /></small>' . "\n" ) .
 143             html_tag( 'table',
 144                 html_tag( 'tr',
 145                     html_tag( 'td',
 146                         '<b>' . sprintf (_("%s Login"), $org_name) . "</b>\n",
 147                     'center', $color[0] )
 148                 ) .
 149                 html_tag( 'tr',
 150                     html_tag( 'td',  "\n" .
 151                         html_tag( 'table',
 152                             html_tag( 'tr',
 153                                 html_tag( 'td',
 154                                     _("Name:") ,
 155                                 'right', '', 'width="30%"' ) .
 156                                 html_tag( 'td',
 157                                     addInput($username_form_name, $loginname_value),
 158                                 'left', '', 'width="*"' )
 159                                 ) . "\n" .
 160                             html_tag( 'tr',
 161                                 html_tag( 'td',
 162                                     _("Password:") ,
 163                                 'right', '', 'width="30%"' ) .
 164                                 html_tag( 'td',
 165                                     addPwField($password_form_name).
 166                                     addHidden('js_autodetect_results', SMPREF_JS_OFF).
 167                                     $rcptaddress .
 168                                     addHidden('just_logged_in', '1'),
 169                                 'left', '', 'width="*"' )
 170                             ) ,
 171                         'center', $color[4], 'border="0" width="100%"' ) ,
 172                     'left', $color[4] )
 173                 ) .
 174                 html_tag( 'tr',
 175                     html_tag( 'td',
 176                         '<center>'. addSubmit(_("Login")) .'</center>',
 177                     'left' )
 178                 ),
 179             '', $color[4], 'border="0" width="350"' ) . '</center>',
 180         'center' )
 181     ) ,
 182 '', $color[4], 'border="0" cellspacing="0" cellpadding="0" width="100%"' );
 183 do_hook('login_form');
 184 echo '</form>' . "\n";
 185
 186 do_hook('login_bottom');
 187 ?>
 188 </body></html>