src/login.php

   1 <?php
   2
   3 /**
   4  * login.php -- simple login screen
   5  *
   6  * This a simple login screen. Some housekeeping is done to clean
   7  * cookies and find language.
   8  *
   9  * @copyright &copy; 1999-2007 The SquirrelMail Project Team
  10  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  11  * @version $Id$
  12  * @package squirrelmail
  13  */
  14
  15 /** This is the login page */
  16 define('PAGE_NAME', 'login');
  17
  18 /**
  19  * Include the SquirrelMail initialization file.
  20  */
  21 require('../include/init.php');
  22
  23 /* SquirrelMail required files. */
  24 require_once(SM_PATH . 'functions/imap_general.php');
  25 require_once(SM_PATH . 'functions/forms.php');
  26
  27 /**
  28  * $squirrelmail_language is set by a cookie when the user selects
  29  * language and logs out
  30  */
  31 set_up_language($squirrelmail_language, TRUE, TRUE);
  32
  33 /**
  34  * This detects if the IMAP server has logins disabled, and if so,
  35  * squelches the display of the login form and puts up a message
  36  * explaining the situation.
  37  */
  38 if($imap_auth_mech == 'login') {
  39     /**
  40      * detect disabled login, only when imapServerAddress contains
  41      * server address and not mapping. See sqimap_get_user_server()
  42      */
  43     if (substr($imapServerAddress, 0, 4) != "map:") {
  44         $imap = sqimap_create_stream($imapServerAddress, $imapPort, $use_imap_tls);
  45         $logindisabled = sqimap_capability($imap,'LOGINDISABLED');
  46         sqimap_logout($imap);
  47         if ($logindisabled) {
  48             $string = _("The IMAP server is reporting that plain text logins are disabled.").'<br />'.
  49                 _("Using CRAM-MD5 or DIGEST-MD5 authentication instead may work.").'<br />';
  50             if (!$use_imap_tls) {
  51                 $string .= _("Also, the use of TLS may allow SquirrelMail to login.").'<br />';
  52             }
  53             $string .= _("Please contact your system administrator and report this error.");
  54             error_box($string);
  55             // display footer (closes html tags) and stop script execution
  56             $oTemplate->display('footer.tpl');
  57             exit;
  58         }
  59     }
  60 }
  61
  62 do_hook('login_cookie', $null);
  63
  64 $loginname_value = (sqGetGlobalVar('loginname', $loginname) ? htmlspecialchars($loginname) : '');
  65
  66 //FIXME: should be part of the template, not the core!
  67 /* Output the javascript onload function. */
  68 $header = "<script type=\"text/javascript\">\n" .
  69           "<!--\n".
  70           "  function squirrelmail_loginpage_onload() {\n".
  71           "    var textElements = 0;\n".
  72           "    for (i = 0; i < document.forms[0].elements.length; i++) {\n".
  73           "      if (document.forms[0].elements[i].type == \"text\" || document.forms[0].elements[i].type == \"password\") {\n".
  74           "        textElements++;\n".
  75           "        if (textElements == " . (isset($loginname) ? 2 : 1) . ") {\n".
  76           "          document.forms[0].elements[i].focus();\n".
  77           "          break;\n".
  78           "        }\n".
  79           "      }\n".
  80           "    }\n".
  81           "  }\n".
  82           "// -->\n".
  83           "</script>\n";
  84
  85 if (@file_exists($theme[$theme_default]['PATH']))
  86    @include ($theme[$theme_default]['PATH']);
  87
  88 if (! isset($color) || ! is_array($color)) {
  89     // Add default color theme, if theme loading fails
  90     $color = array();
  91     $color[0]  = '#dcdcdc';  /* light gray    TitleBar               */
  92     $color[1]  = '#800000';  /* red                                  */
  93     $color[2]  = '#cc0000';  /* light red     Warning/Error Messages */
  94     $color[4]  = '#ffffff';  /* white         Normal Background      */
  95     $color[7]  = '#0000cc';  /* blue          Links                  */
  96     $color[8]  = '#000000';  /* black         Normal text            */
  97 }
  98
  99 displayHtmlHeader( "$org_name - " . _("Login"), $header, FALSE );
 100
 101
 102
 103 /* If they don't have a logo, don't bother.. */
 104 $logo_str = '';
 105 if (isset($org_logo) && $org_logo) {
 106
 107     if (isset($org_logo_width) && is_numeric($org_logo_width) &&
 108      $org_logo_width>0) {
 109         $width = $org_logo_width;
 110     } else {
 111         $width = '';
 112     }
 113     if (isset($org_logo_height) && is_numeric($org_logo_height) &&
 114      $org_logo_height>0) {
 115         $height = $org_logo_height;
 116     } else {
 117         $height = '';
 118     }
 119
 120     $logo_str = create_image($org_logo, sprintf(_("%s Logo"), $org_name),
 121                              $width, $height, '', 'sqm_loginImage');
 122
 123 }
 124
 125 $sm_attribute_str = '';
 126 if (isset($hide_sm_attributions) && !$hide_sm_attributions) {
 127     $sm_attribute_str = _("SquirrelMail Webmail")."\n" .
 128                         _("By the SquirrelMail Project Team");
 129 }
 130
 131 if(sqgetGlobalVar('mailtodata', $mailtodata)) {
 132     $mailtofield = addHidden('mailtodata', $mailtodata);
 133 } else {
 134     $mailtofield = '';
 135 }
 136
 137 $password_field = addPwField('secretkey');
 138 $login_extra = addHidden('js_autodetect_results', SMPREF_JS_OFF).
 139                $mailtofield .
 140                addHidden('just_logged_in', '1');
 141
 142 session_write_close();
 143
 144 $oTemplate->assign('logo_str', $logo_str, FALSE);
 145 $oTemplate->assign('logo_path', $org_logo);
 146 $oTemplate->assign('sm_attribute_str', $sm_attribute_str);
 147 // i18n: The %s represents the service provider's name
 148 $oTemplate->assign('org_name_str', sprintf (_("%s Login"), $org_name));
 149 // i18n: The %s represents the service provider's name
 150 $oTemplate->assign('org_logo_str', sprintf (_("The %s logo"), $org_name));
 151 $oTemplate->assign('login_field_value', $loginname_value);
 152 $oTemplate->assign('login_extra', $login_extra, FALSE);
 153
 154 //FIXME: need to remove *ALL* HTML from this file!
 155 echo '<body onload="squirrelmail_loginpage_onload()">'."\n";
 156 echo '<form action="redirect.php" method="post" onsubmit="document.forms[0].js_autodetect_results.value='. SMPREF_JS_ON .'">'."\n";
 157 do_hook('login_top', $null);
 158
 159 $oTemplate->display('login.tpl');
 160
 161 //FIXME: need to remove *ALL* HTML from this file!
 162 echo "</form>\n";
 163 do_hook('login_bottom', $null);
 164
 165 // Turn off delayed error handling to make sure all errors are dumped.
 166 $oErrorHandler->setDelayedErrors(false);
 167
 168 $oTemplate->display('footer.tpl');