src/login.php

   1 <?php
   2
   3 /**
   4  * login.php -- simple login screen
   5  *
   6  * Copyright (c) 1999-2003 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  * $Id$
  13  */
  14
  15 /* Path for SquirrelMail required files. */
  16 define('SM_PATH','../');
  17
  18 /* SquirrelMail required files. */
  19 require_once(SM_PATH . 'functions/strings.php');
  20 require_once(SM_PATH . 'config/config.php');
  21 require_once(SM_PATH . 'functions/i18n.php');
  22 require_once(SM_PATH . 'functions/plugin.php');
  23 require_once(SM_PATH . 'functions/constants.php');
  24 require_once(SM_PATH . 'functions/page_header.php');
  25 require_once(SM_PATH . 'functions/html.php');
  26 require_once(SM_PATH . 'functions/global.php');
  27 require_once(SM_PATH . 'functions/imap_general.php');
  28
  29 /*
  30  * $squirrelmail_language is set by a cookie when the user selects
  31  * language and logs out
  32  */
  33 set_up_language($squirrelmail_language, TRUE, TRUE);
  34
  35 /**
  36  * Find out the base URI to set cookies.
  37  */
  38 if (!function_exists('sqm_baseuri')){
  39     require_once(SM_PATH . 'functions/display_messages.php');
  40 }
  41 $base_uri = sqm_baseuri();
  42
  43 /*
  44  * In case the last session was not terminated properly, make sure
  45  * we get a new one.
  46  */
  47
  48 sqsession_destroy();
  49
  50 header('Pragma: no-cache');
  51
  52 $imap = sqimap_create_stream($imapServerAddress, $imapPort, $use_imap_tls);
  53 $logindisabled = sqimap_capability($imap,'LOGINDISABLED');
  54 sqimap_logout($imap);
  55 if ($logindisabled) {
  56     $string = "The IMAP server is reporting that logins are disabled.<br>";
  57     if (!$use_imap_tls) {
  58         $string .= "The use of TLS may allow SquirrelMail to login.<br>";
  59     }
  60     $string .= "Please contact your system administrator.";
  61     error_box($string,$color);
  62     exit;
  63 }
  64
  65 do_hook('login_cookie');
  66
  67 /* Output the javascript onload function. */
  68
  69 $header = "<script language=\"JavaScript\" type=\"text/javascript\">\n" .
  70           "<!--\n".
  71           "  function squirrelmail_loginpage_onload() {\n".
  72           "    document.forms[0].js_autodetect_results.value = '" . SMPREF_JS_ON . "';\n".
  73           "    var textElements = 0;\n".
  74           "    for (i = 0; i < document.forms[0].elements.length; i++) {\n".
  75           "      if (document.forms[0].elements[i].type == \"text\" || document.forms[0].elements[i].type == \"password\") {\n".
  76           "        textElements++;\n".
  77           "        if (textElements == " . (isset($loginname) ? 2 : 1) . ") {\n".
  78           "          document.forms[0].elements[i].focus();\n".
  79           "          break;\n".
  80           "        }\n".
  81           "      }\n".
  82           "    }\n".
  83           "  }\n".
  84           "// -->\n".
  85           "</script>\n";
  86
  87 if (@file_exists($theme[$theme_default]['PATH']))
  88    @include ($theme[$theme_default]['PATH']);
  89
  90 displayHtmlHeader( "$org_name - " . _("Login"), $header, FALSE );
  91
  92 echo "<body text=\"$color[8]\" bgcolor=\"$color[4]\" link=\"$color[7]\" vlink=\"$color[7]\" alink=\"$color[7]\" onLoad=\"squirrelmail_loginpage_onload()\">" .
  93      "\n" . '<form action="redirect.php" method="post">' . "\n";
  94
  95 $username_form_name = 'login_username';
  96 $password_form_name = 'secretkey';
  97 do_hook('login_top');
  98
  99 $loginname_value = (sqGetGlobalVar('loginname', $loginname) ? htmlspecialchars($loginname) : '');
 100
 101 /* If they don't have a logo, don't bother.. */
 102 if (isset($org_logo) && $org_logo) {
 103     /* Display width and height like good little people */
 104     $width_and_height = '';
 105     if (isset($org_logo_width) && is_numeric($org_logo_width) &&
 106      $org_logo_width>0) {
 107         $width_and_height = " width=\"$org_logo_width\"";
 108     }
 109     if (isset($org_logo_height) && is_numeric($org_logo_height) &&
 110      $org_logo_height>0) {
 111         $width_and_height .= " height=\"$org_logo_height\"";
 112     }
 113 }
 114
 115 if(sqgetGlobalVar('mailto', $mailto)) {
 116     $rcptaddress = '<input type="hidden" name="mailto" value="' . urlencode($mailto) . '" />' . "\n";
 117 } else {
 118     $rcptaddress = '';
 119 }
 120 echo html_tag( 'table',
 121     html_tag( 'tr',
 122         html_tag( 'td',
 123             '<center>'.
 124             ( isset($org_logo) && $org_logo
 125               ? '<img src="' . $org_logo . '" alt="' .
 126                 sprintf(_("%s Logo"), $org_name) .'"' . $width_and_height .
 127                 ' /><br />' . "\n"
 128               : '' ).
 129             ( (isset($hide_sm_attributions) && $hide_sm_attributions) ? '' :
 130             '<small>' . sprintf (_("SquirrelMail version %s"), $version) . '<br />' ."\n".
 131             '  ' . _("By the SquirrelMail Development Team") . '<br /></small>' . "\n" ) .
 132             html_tag( 'table',
 133                 html_tag( 'tr',
 134                     html_tag( 'td',
 135                         '<b>' . sprintf (_("%s Login"), $org_name) . "</b>\n",
 136                     'center', $color[0] )
 137                 ) .
 138                 html_tag( 'tr',
 139                     html_tag( 'td',  "\n" .
 140                         html_tag( 'table',
 141                             html_tag( 'tr',
 142                                 html_tag( 'td',
 143                                     _("Name:") ,
 144                                 'right', '', 'width="30%"' ) .
 145                                 html_tag( 'td',
 146                                     '<input type="text" name="' . $username_form_name .'" value="' . $loginname_value .'" />' ,
 147                                 'left', '', 'width="*"' )
 148                                 ) . "\n" .
 149                             html_tag( 'tr',
 150                                 html_tag( 'td',
 151                                     _("Password:") ,
 152                                 'right', '', 'width="30%"' ) .
 153                                 html_tag( 'td',
 154                                     '<input type="password" name="' . $password_form_name . '" />' . "\n" .
 155                                     '<input type="hidden" name="js_autodetect_results" value="SMPREF_JS_OFF" />' . "\n" .
 156                                     $rcptaddress .
 157                                     '<input type="hidden" name="just_logged_in" value="1" />' . "\n",
 158                                 'left', '', 'width="*"' )
 159                             ) ,
 160                         'center', $color[4], 'border="0" width="100%"' ) ,
 161                     'left', $color[4] )
 162                 ) .
 163                 html_tag( 'tr',
 164                     html_tag( 'td',
 165                         '<center><input type="submit" value="' . _("Login") . '" /></center>',
 166                     'left' )
 167                 ),
 168             '', $color[4], 'border="0" width="350"' ) . '</center>',
 169         'center' )
 170     ) ,
 171 '', $color[4], 'border="0" cellspacing="0" cellpadding="0" width="100%"' );
 172 do_hook('login_form');
 173 echo '</form>' . "\n";
 174
 175 do_hook('login_bottom');
 176 echo "</body>\n".
 177      "</html>\n";
 178 ?>