--- loncom/interface/lonpreferences.pm	2008/03/12 02:45:07	1.116
+++ loncom/interface/lonpreferences.pm	2008/05/28 01:45:48	1.122
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Preferences
 #
-# $Id: lonpreferences.pm,v 1.116 2008/03/12 02:45:07 raeburn Exp $
+# $Id: lonpreferences.pm,v 1.122 2008/05/28 01:45:48 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -210,7 +210,7 @@ sub texenginechanger {
 </form>
 Examples:
 <p> TeX to HTML <br /> 
-<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=tth" width="400" hieght="200"></iframe>
+<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=tth" width="400" height="200"></iframe>
 </p>
 <p>jsMath <br /> 
 $jsMath_start
@@ -230,12 +230,12 @@ if (jsMath.nofonts == 1) {
 	 +'</font></small></div></center>');
 }
 </script>
-<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=jsMath" width="400" hieght="200"></iframe>
+<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=jsMath" width="400" height="120"></iframe>
 
 </p>
 <p> Convert to Images <br />
 <br />
-<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=mimetex" width="400" hieght="200"></iframe>
+<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=mimetex" width="400" height="100"></iframe>
 </p>
 ENDLSCREEN
     if ($env{'environment.texengine'} ne 'jsMath') {
@@ -610,6 +610,80 @@ sub verify_and_change_clicker {
 }
 
 ################################################################
+#               Domcoord Access Subroutines                    #
+################################################################
+
+sub domcoordchanger {
+    my $r = shift;
+    my $user       = $env{'user.name'};
+    my $domain     = $env{'user.domain'};
+    my %userenv = &Apache::lonnet::get
+        ('environment',['domcoord.author']);
+    my $constchecked='';
+    if ($userenv{'domcoord.author'} eq 'blocked') {
+       $constchecked='checked="checked"';
+    }
+    my $text=&mt('By default, the Domain Coordinator can enter your construction space.');
+    my $construction=&mt('Block access to construction space');
+    my $change=&mt('Change');
+    $r->print(<<ENDSCREEN);
+<form name="prefs" action="/adm/preferences" method="post">
+<input type="hidden" name="action" value="verify_and_change_domcoord" />
+$text<br />
+<label><input type="checkbox" name="construction" $constchecked />$construction</label><br />
+<input type="submit" value="$change" />
+</form>
+ENDSCREEN
+}
+
+sub verify_and_change_domcoord {
+    my $r = shift;
+    my $user       = $env{'user.name'};
+    my $domain     = $env{'user.domain'};
+    my %domcoord=('domcoord.author' => '');
+    if ($env{'form.construction'}) { $domcoord{'domcoord.author'}='blocked'; }
+    &Apache::lonnet::put('environment',\%domcoord);
+    &Apache::lonnet::appenv({'environment.domcoord.author' => $domcoord{'domcoord.author'}});
+    $r->print(&mt('Registering Domain Coordinator access restrictions.'));
+}
+
+#################################################################
+##                      Lock Subroutines                        #
+#################################################################
+
+sub lockwarning {
+    my $r = shift;
+    my $title=&mt('Action locked');
+    my $texttop=&mt('LON-CAPA is currently performing the following actions:');
+    my $textbottom=&mt('Changing roles or logging out may result in data corruption.');
+    my ($num,%which)=&Apache::lonnet::get_locks();
+    my $which='';
+    foreach my $id (keys %which) {
+       $which.='<li>'.$which{$id}.'</li>';
+    }
+    my $change=&mt('Override');
+    $r->print(<<ENDSCREEN);
+<form name="prefs" action="/adm/preferences" method="post">
+<input type="hidden" name="action" value="verify_and_change_locks" />
+<h1>$title</h1>
+$texttop
+<ul>
+$which
+</ul>
+$textbottom
+<input type="submit" value="$change" />
+</form>
+ENDSCREEN
+}
+
+sub verify_and_change_lockwarning {
+    my $r = shift;
+    &Apache::lonnet::remove_all_locks();
+    $r->print(&mt('Cleared locks.'));
+}
+
+
+################################################################
 #         Message Forward                                      #
 ################################################################
 
@@ -1325,6 +1399,13 @@ ENDERROR
     #
     if ($caller eq 'reset_by_email') {
         my %data = &Apache::lonnet::tmpget($mailtoken);
+        if (keys(%data) == 0) {
+            &passwordchanger($r,
+                         '<span class="LC_error">'.
+                         &mt('Could not verify current authentication.').'  '.
+                         &mt('Please try again.').'</span>',$caller,$mailtoken);
+            return 1;
+        }
         if ($currentpass ne $data{'temppasswd'}) {
             &passwordchanger($r,
                          '<span class="LC_error">'.
@@ -1818,7 +1899,7 @@ sub handler {
                       href     => '/adm/preferences',
                       subroutine => \&clickerchanger,
                       breadcrumb =>
-                          { href => '/adm/preferences?action=changeicons',
+                          { href => '/adm/preferences?action=changeclicker',
                             text => 'Register Clicker'},
                       },
                     { action   => 'verify_and_change_clicker',
@@ -1828,6 +1909,37 @@ sub handler {
                             text => 'Register Clicker'},
                       printmenu => 'yes',
                       }));
+   if ($env{'user.adv'}) {
+      push (@Options,({ action   => 'changedomcoord',
+                        linktext => 'Restrict Domain Coordinator Access',
+                        href     => '/adm/preferences',
+                        subroutine => \&domcoordchanger,
+                        breadcrumb =>
+                            { href => '/adm/preferences?action=changedomcoord',
+                              text => 'Restrict Domain Coordinator Access'},
+                      },
+                      { action   => 'verify_and_change_domcoord',
+                        subroutine => \&verify_and_change_domcoord,
+                        breadcrumb =>
+                            { href => '/adm/preferences?action=changedomcoord',
+                              text => 'Restrict Domain Coordinator Access'},
+                        printmenu => 'yes',
+                      }));
+    }
+
+    push (@Options,({ action   => 'lockwarning',
+                      subroutine => \&lockwarning,
+                      breadcrumb =>
+                          { href => '/adm/preferences?action=lockwarning',
+                            text => 'Lock Warnings'},
+                      },
+                    { action   => 'verify_and_change_locks',
+                      subroutine => \&verify_and_change_lockwarning,
+                      breadcrumb =>
+                          { href => '/adm/preferences?action=lockwarning',
+                            text => 'Lockwarnings'},
+                      printmenu => 'yes',
+                      }));
 
 
     if (&Apache::lonnet::allowed('whn',$env{'request.course.id'})
@@ -1849,7 +1961,7 @@ sub handler {
                        }));
     }
 
-    if ($env{'user.name'} =~ /^(albertel|fox|foxr|koretemey|korte|hallmat3|turtle|raeburn)$/) {
+    if ($env{'user.name'} =~ /^(albertel|fox|foxr|kortemey|korte|raeburn)$/) {
         push (@Options,({ action => 'debugtoggle',
                           printmenu => 'yes',
                           subroutine => \&toggle_debug,