--- loncom/auth/lonauth.pm	2012/08/06 23:14:04	1.121.2.1
+++ loncom/auth/lonauth.pm	2014/10/04 02:59:32	1.135
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # User Authentication Module
 #
-# $Id: lonauth.pm,v 1.121.2.1 2012/08/06 23:14:04 raeburn Exp $
+# $Id: lonauth.pm,v 1.135 2014/10/04 02:59:32 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -103,16 +103,16 @@ sub success {
         if ($destsymb =~ /___/) {
             # FIXME Need to deal with encrypted symbs and urls as needed.
             my ($map,$resid,$desturl)=split(/___/,$destsymb);
-            unless ($desturl=~/^(adm|uploaded|editupload|public)/) {
+            unless ($desturl=~/^(adm|editupload|public)/) {
                 $desturl = &Apache::lonnet::clutter($desturl);
             }
             $desturl = &HTML::Entities::encode($desturl,'"<>&');
             $destsymb = &HTML::Entities::encode($destsymb,'"<>&');
-            $destination .= '&destinationurl='.$desturl.
+            $destination .= 'destinationurl='.$desturl.
                             '&destsymb='.$destsymb;
         } else {
             $destsymb = &HTML::Entities::encode($destsymb,'"<>&');
-            $destination .= '&destinationurl='.$destsymb;
+            $destination .= 'destinationurl='.$destsymb;
         }
     }
     if ($destination =~ m{^/adm/roles}) {
@@ -120,23 +120,16 @@ sub success {
         $destination .= 'source=login';
     }
 
-    my $windowinfo=&Apache::lonmenu::open($env{'browser.os'});
-    my $startupremote=&Apache::lonmenu::startupremote($destination);
-    my $remoteinfo=&Apache::lonmenu::load_remote_msg($lowerurl);
-    my $setflags=&Apache::lonmenu::setflags();
-    my $maincall=&Apache::lonmenu::maincall();
+    my $windowinfo = Apache::lonhtmlcommon::scripttag('self.name="loncapaclient";');
+    my $header = '<meta HTTP-EQUIV="Refresh" CONTENT="0; url='.$destination.'" />';
     my $brcrum = [{'href' => '',
                    'text' => 'Successful Login'},];
     my $start_page=&Apache::loncommon::start_page('Successful Login',
-                                                  $startupremote,
-                                                  {'no_inline_link' => 1,
-                                                   'bread_crumbs' => $brcrum,});
+                                                  $header,
+                                                  {'bread_crumbs' => $brcrum,});
     my $end_page  =&Apache::loncommon::end_page();
 
-    my $continuelink;
-    if ($env{'environment.remote'} eq 'off') {
-	$continuelink='<a href="'.$destination.'">'.&mt('Continue').'</a>';
-    }
+	my $continuelink='<a href="'.$destination.'">'.&mt('Continue').'</a>';
 # ------------------------------------------------- Output for successful login
 
     &Apache::loncommon::content_type($r,'text/html');
@@ -146,46 +139,77 @@ sub success {
     my %lt=&Apache::lonlocal::texthash(
 				       'wel' => 'Welcome',
 				       'pro' => 'Login problems?',
-				       'log' => 'loginproblems.html',
 				       );
+    my $loginhelp = &loginhelpdisplay($domain);
+    if ($loginhelp) {
+        $loginhelp = '<p><a href="'.$loginhelp.'">'.$lt{'pro'}.'</a></p>';
+    }
+
     my $welcome = &mt('Welcome to the Learning[_1]Online[_2] Network with CAPA. Please wait while your session is being set up.','<i>','</i>'); 
     $r->print(<<ENDSUCCESS);
 $start_page
-$setflags
 $windowinfo
 <h1>$lt{'wel'}</h1>
-$welcome<p>
-<a href="/adm/$lt{'log'}">$lt{'pro'}</a></p>
-$remoteinfo
-$maincall
+$welcome
+$loginhelp
 $continuelink
 $end_page
 ENDSUCCESS
+    return;
 }
 
 # --------------------------------------------------------------- Failed login!
 
 sub failed {
     my ($r,$message,$form) = @_;
-    my $start_page = &Apache::loncommon::start_page('Unsuccessful Login',undef);
-    my $retry = '/adm/login?username='.$form->{'uname'}.
-                '&domain='.$form->{'udom'};
+    (undef,undef,undef,my $clientmathml,my $clientunicode) =
+        &Apache::loncommon::decode_user_agent();
+    my $args = {};
+    if ($clientunicode && !$clientmathml) {
+        $args = {'browser.unicode' => 1};
+    }
+
+    my $start_page = &Apache::loncommon::start_page('Unsuccessful Login',undef,$args);
+    my $uname = &Apache::loncommon::cleanup_html($form->{'uname'});
+    my $udom = &Apache::loncommon::cleanup_html($form->{'udom'});
+    if (&Apache::lonnet::domain($udom,'description') eq '') {
+        undef($udom);
+    }
+    my $retry = '/adm/login';
+    if ($uname eq $form->{'uname'}) {
+        $retry .= '?username='.$uname;
+    }
+    if ($udom) {
+        $retry .= (($retry=~/\?/)?'&amp;':'?').'domain='.$udom;
+    }
     if (exists($form->{role})) {
-        $retry .= '&role='.$form->{role};
+        my $role = &Apache::loncommon::cleanup_html($form->{role});
+        if ($role ne '') {
+            $retry .= (($retry=~/\?/)?'&amp;':'?').'role='.$role;
+        }
     }
     if (exists($form->{symb})) {
-        $retry .= '&symb='.$form->{symb};
+        my $symb = &Apache::loncommon::cleanup_html($form->{symb});
+        if ($symb ne '') {
+            $retry .= (($retry=~/\?/)?'&amp;':'?').'symb='.$symb;
+        }
     }
-    my $end_page   = &Apache::loncommon::end_page();
+    my $end_page = &Apache::loncommon::end_page();
     &Apache::loncommon::content_type($r,'text/html');
     $r->send_http_header;
+    my @actions =
+         (&mt('Please [_1]log in again[_2].','<a href="'.$retry.'">','</a>'));
+    my $loginhelp = &loginhelpdisplay($udom);
+    if ($loginhelp) {
+        push(@actions, '<a href="'.$loginhelp.'">'.&mt('Login problems?').'</a>');
+    }
+    #FIXME: link to helpdesk might be added here
+
     $r->print(
        $start_page
-      .'<h1>'.&mt('Sorry ...').'</h1>'
-      .'<p class="LC_warning">'.&mt($message).'</p>'
-      .'<p>'.&mt('Please [_1]log in again[_2].','<a href="'.$retry.'">','</a>')
-      .'</p>'
-      .'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'
+      .'<h2>'.&mt('Sorry ...').'</h2>'
+      .&Apache::lonhtmlcommon::confirm_success(&mt($message),1).'<br /><br />'
+      .&Apache::lonhtmlcommon::actionbox(\@actions)
       .$end_page
     );
  }
@@ -196,9 +220,9 @@ sub reroute {
     my ($r) = @_;
     &Apache::loncommon::content_type($r,'text/html');
     $r->send_http_header;
-    my $msg='<h1>'.&mt('Sorry ...').'</h1>'
+    my $msg='<b>'.&mt('Sorry ...').'</b><br />'
            .&mt('Please [_1]log in again[_2].');
-    &Apache::loncommon::simple_error_page($r,'Rerouting',$msg);
+    &Apache::loncommon::simple_error_page($r,'Rerouting',$msg,{'no_auto_mt_msg' => 1});
 }
 
 # ---------------------------------------------------------------- Main handler
@@ -237,7 +261,7 @@ sub handler {
             }
             $r->print(
                $start_page
-              .'<p class="LC_warning>"'.&mt('You are already logged in!').'</p>'
+              .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
               .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].'
                     ,'<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>')
               .'</p>'
@@ -260,7 +284,7 @@ sub handler {
        $value =~ tr/+/ /;
        $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
        $form{$name}=$value;
-    } 
+    }
 
     if ((!$form{'uname'}) || (!$form{'upass0'}) || (!$form{'udom'})) {
 	&failed($r,'Username, password and domain need to be specified.',
@@ -304,19 +328,25 @@ sub handler {
         return OK;
     }
 
-    my ($key,$firsturl,$rolestr,$symbstr)=split(/&/,$tmpinfo);
+    my ($key,$firsturl,$rolestr,$symbstr,$iptokenstr)=split(/&/,$tmpinfo);
     if ($rolestr) {
         $rolestr = &unescape($rolestr);
     }
     if ($symbstr) {
         $symbstr= &unescape($symbstr);
     }
+    if ($iptokenstr) {
+        $iptokenstr = &unescape($iptokenstr);
+    }
     if ($rolestr =~ /^role=/) {
         (undef,$form{'role'}) = split('=',$rolestr);
     }
     if ($symbstr =~ /^symb=/) { 
         (undef,$form{'symb'}) = split('=',$symbstr);
     }
+    if ($iptokenstr =~ /^iptoken=/) {
+        (undef,$form{'iptoken'}) = split('=',$iptokenstr);
+    }
 
     my $keybin=pack("H16",$key);
 
@@ -368,8 +398,7 @@ sub handler {
                 return OK;
             }
             my $start_page = 
-                &Apache::loncommon::start_page('Create a user account in LON-CAPA',
-                                               '',{'no_inline_link'   => 1,});
+                &Apache::loncommon::start_page('Create a user account in LON-CAPA');
             my $lonhost = $r->dir_config('lonHostID');
             my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
             my $contacts = 
@@ -398,6 +427,17 @@ sub handler {
 	($firsturl=~/^\/adm\/(logout|remote)/)) {
 	$firsturl='/adm/roles';
     }
+
+    my $hosthere;
+    if ($form{'iptoken'}) {
+        my %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
+        my $delete = &Apache::lonnet::tmpdel($form{'iptoken'});
+        if (($sessiondata{'domain'} eq $form{'udom'}) &&
+            ($sessiondata{'username'} eq $form{'uname'})) {
+            $hosthere = 1;
+        }
+    }
+
 # --------------------------------- Are we attempting to login as somebody else?
     if ($form{'suname'}) {
 # ------------ see if the original user has enough privileges to pull this stunt
@@ -421,8 +461,12 @@ sub handler {
 	}
     }
 
-    my ($is_balancer,$otherserver) = 
-        &Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'});
+    my ($is_balancer,$otherserver);
+
+    unless ($hosthere) {
+        ($is_balancer,$otherserver) =
+            &Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'});
+    }
 
     if ($is_balancer) {
         if (!$otherserver) { 
@@ -431,7 +475,17 @@ sub handler {
         if ($otherserver) {
             &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
                      \%form);
-	    $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl);
+            my $switchto = '/adm/switchserver?otherserver='.$otherserver;
+            if (($firsturl) && ($firsturl ne '/adm/switchserver') && ($firsturl ne '/adm/roles')) {
+                $switchto .= '&origurl='.$firsturl;
+            }
+            if ($form{'role'}) {
+                $switchto .= '&role='.$form{'role'};
+            }
+            if ($form{'symb'}) {
+                $switchto .= '&symb='.$form{'symb'};
+            }
+            $r->internal_redirect($switchto);
         } else {
             $r->print(&noswitch());
         }
@@ -442,7 +496,17 @@ sub handler {
             if ($otherserver) {
                 &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
                          \%form);
-                $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl);
+                my $switchto = '/adm/switchserver?otherserver='.$otherserver;
+                if (($firsturl) && ($firsturl ne '/adm/switchserver') && ($firsturl ne '/adm/roles')) {
+                    $switchto .= '&origurl='.$firsturl;
+                }
+                if ($form{'role'}) {
+                    $switchto .= '&role='.$form{'role'};
+                }
+                if ($form{'symb'}) {
+                    $switchto .= '&symb='.$form{'symb'};
+                }
+                $r->internal_redirect($switchto);
             } else {
                 $r->print(&noswitch());
             }
@@ -554,6 +618,33 @@ sub noswitch {
     return $result;
 }
 
+sub loginhelpdisplay {
+    my ($authdomain) = @_;
+    my $login_help = 1;
+    my $lang = &Apache::lonlocal::current_language();
+    if ($login_help) {
+        my $dom = $authdomain;
+        if ($dom eq '') {
+            $dom = &Apache::lonnet::default_login_domain();
+        }
+        my %domconfhash = &Apache::loncommon::get_domainconf($dom);
+        my $loginhelp_url;
+        if ($lang) {
+            $loginhelp_url = $domconfhash{$dom.'.login.helpurl_'.$lang};
+            if ($loginhelp_url ne '') {
+                return $loginhelp_url;
+            }
+        }
+        $loginhelp_url = $domconfhash{$dom.'.login.helpurl_nolang'};
+        if ($loginhelp_url ne '') {
+            return $loginhelp_url;
+        } else {
+            return '/adm/loginproblems.html';
+        }
+    }
+    return;
+}
+
 1;
 __END__