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 // reduces the files included in init.php
  16 $sInitLocation = 'login';
  17
  18 /**
  19  * Include the SquirrelMail initialization file.
  20  */
  21 require('../include/init.php');
  22
  23
  24 /* SquirrelMail required files. */
  25 require_once(SM_PATH . 'functions/imap_general.php');
  26 require_once(SM_PATH . 'functions/forms.php');
  27
  28 /**
  29  * $squirrelmail_language is set by a cookie when the user selects
  30  * language and logs out
  31  */
  32 set_up_language($squirrelmail_language, TRUE, TRUE);
  33
  34 /**
  35  * In case the last session was not terminated properly, make sure
  36  * we get a new one, but make sure we preserve session_expired_*
  37  */
  38 if ( !empty($_SESSION['session_expired_post']) && !empty($_SESSION['session_expired_location']) ) {
  39     $sep = $_SESSION['session_expired_post'];
  40     $sel = $_SESSION['session_expired_location'];
  41
  42     sqsession_destroy();
  43     @sqsession_is_active();
  44     $_SESSION=array();
  45     sqsession_register($sep, 'session_expired_post');
  46     sqsession_register($sel, 'session_expired_location');
  47 } else {
  48     sqsession_destroy();
  49     @sqsession_is_active();
  50     $_SESSION=array();
  51 }
  52
  53 /**
  54  * This detects if the IMAP server has logins disabled, and if so,
  55  * squelches the display of the login form and puts up a message
  56  * explaining the situation.
  57  */
  58 if($imap_auth_mech == 'login') {
  59     /**
  60      * detect disabled login, only when imapServerAddress contains
  61      * server address and not mapping. See sqimap_get_user_server()
  62      */
  63     if (substr($imapServerAddress, 0, 4) != "map:") {
  64         $imap = sqimap_create_stream($imapServerAddress, $imapPort, $use_imap_tls);
  65         $logindisabled = sqimap_capability($imap,'LOGINDISABLED');
  66         sqimap_logout($imap);
  67         if ($logindisabled) {
  68             $string = _("The IMAP server is reporting that plain text logins are disabled.").'<br />'.
  69                 _("Using CRAM-MD5 or DIGEST-MD5 authentication instead may work.").'<br />';
  70             if (!$use_imap_tls) {
  71                 $string .= _("Also, the use of TLS may allow SquirrelMail to login.").'<br />';
  72             }
  73             $string .= _("Please contact your system administrator and report this error.");
  74             error_box($string);
  75             // display footer (closes html tags) and stop script execution
  76             $oTemplate->display('footer.tpl');
  77             exit;
  78         }
  79     }
  80 }
  81
  82 do_hook('login_cookie', $null);
  83
  84 $loginname_value = (sqGetGlobalVar('loginname', $loginname) ? htmlspecialchars($loginname) : '');
  85
  86 //FIXME: should be part of the template, not the core!
  87 /* Output the javascript onload function. */
  88 $header = "<script type=\"text/javascript\">\n" .
  89           "<!--\n".
  90           "  function squirrelmail_loginpage_onload() {\n".
  91           "    var textElements = 0;\n".
  92           "    for (i = 0; i < document.forms[0].elements.length; i++) {\n".
  93           "      if (document.forms[0].elements[i].type == \"text\" || document.forms[0].elements[i].type == \"password\") {\n".
  94           "        textElements++;\n".
  95           "        if (textElements == " . (isset($loginname) ? 2 : 1) . ") {\n".
  96           "          document.forms[0].elements[i].focus();\n".
  97           "          break;\n".
  98           "        }\n".
  99           "      }\n".
 100           "    }\n".
 101           "  }\n".
 102           "// -->\n".
 103           "</script>\n";
 104
 105 if (@file_exists($theme[$theme_default]['PATH']))
 106    @include ($theme[$theme_default]['PATH']);
 107
 108 if (! isset($color) || ! is_array($color)) {
 109     // Add default color theme, if theme loading fails
 110     $color = array();
 111     $color[0]  = '#dcdcdc';  /* light gray    TitleBar               */
 112     $color[1]  = '#800000';  /* red                                  */
 113     $color[2]  = '#cc0000';  /* light red     Warning/Error Messages */
 114     $color[4]  = '#ffffff';  /* white         Normal Background      */
 115     $color[7]  = '#0000cc';  /* blue          Links                  */
 116     $color[8]  = '#000000';  /* black         Normal text            */
 117 }
 118
 119 displayHtmlHeader( "$org_name - " . _("Login"), $header, FALSE );
 120
 121
 122
 123 /* If they don't have a logo, don't bother.. */
 124 $logo_str = '';
 125 if (isset($org_logo) && $org_logo) {
 126
 127     if (isset($org_logo_width) && is_numeric($org_logo_width) &&
 128      $org_logo_width>0) {
 129         $width = $org_logo_width;
 130     } else {
 131         $width = '';
 132     }
 133     if (isset($org_logo_height) && is_numeric($org_logo_height) &&
 134      $org_logo_height>0) {
 135         $height = $org_logo_height;
 136     } else {
 137         $height = '';
 138     }
 139
 140     $logo_str = create_image($org_logo, sprintf(_("%s Logo"), $org_name),
 141                              $width, $height, '', 'sqm_loginImage');
 142
 143 }
 144
 145 $sm_attribute_str = '';
 146 if (isset($hide_sm_attributions) && !$hide_sm_attributions) {
 147     $sm_attribute_str = _("SquirrelMail Webmail Application")."\n" .
 148                         _("By the SquirrelMail Project Team");
 149 }
 150
 151 if(sqgetGlobalVar('mailtodata', $mailtodata)) {
 152     $mailtofield = addHidden('mailtodata', $mailtodata);
 153 } else {
 154     $mailtofield = '';
 155 }
 156
 157 $password_field = addPwField('secretkey');
 158 $login_extra = addHidden('js_autodetect_results', SMPREF_JS_OFF).
 159                $mailtofield .
 160                addHidden('just_logged_in', '1');
 161
 162 session_write_close();
 163
 164 $oTemplate->assign('logo_str', $logo_str, FALSE);
 165 $oTemplate->assign('logo_path', $org_logo);
 166 $oTemplate->assign('sm_attribute_str', $sm_attribute_str);
 167 $oTemplate->assign('org_name_str', sprintf (_("%s Login"), $org_name));
 168 $oTemplate->assign('login_field_value', $loginname_value);
 169 $oTemplate->assign('login_extra', $login_extra, FALSE);
 170
 171 //FIXME: need to remove *ALL* HTML from this file!
 172 echo '<body onLoad="squirrelmail_loginpage_onload()">'."\n";
 173 echo '<form action="redirect.php" method="post" onSubmit="document.forms[0].js_autodetect_results.value='. SMPREF_JS_ON .'">'."\n";
 174 do_hook('login_top', $null);
 175
 176 $oTemplate->display('login.tpl');
 177
 178 //FIXME: need to remove *ALL* HTML from this file!
 179 echo "</form>\n";
 180 do_hook('login_bottom', $null);
 181
 182 // Turn off delayed error handling to make sure all errors are dumped.
 183 $oErrorHandler->setDelayedErrors(false);
 184
 185 $oTemplate->display('footer.tpl');
 186 ?>