--- loncom/interface/domainprefs.pm	2023/11/07 11:50:56	1.431
+++ loncom/interface/domainprefs.pm	2024/03/03 00:08:37	1.437
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: domainprefs.pm,v 1.431 2023/11/07 11:50:56 raeburn Exp $
+# $Id: domainprefs.pm,v 1.437 2024/03/03 00:08:37 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -386,7 +386,7 @@ sub handler {
                       help => 'Domain_Configuration_Quotas',
                       header => [{col1 => 'User affiliation',
                                   col2 => 'Available tools',
-                                  col3 => 'Portfilo quota (MB)',}],
+                                  col3 => 'Portfolio quota (MB)',}],
                       print => \&print_quotas,
                       modify => \&modify_quotas,
                     },
@@ -669,6 +669,8 @@ sub handler {
                               col2 => 'Settings'},
                              {col1 => 'Rules for shared secrets',
                               col2 => 'Settings'},
+                             {col1 => 'Link Protectors in Courses',
+                              col2 => 'Values'},
                              {col1 => 'Link Protectors',
                               col2 => 'Settings'},
                              {col1 => 'Consumers',
@@ -684,7 +686,7 @@ sub handler {
                         print  => \&print_ipaccess,
                         modify => \&modify_ipaccess,
                        },
-        'authordefaults' => 
+        'authordefaults' =>
                             {text => 'Authoring Space defaults',
                              help => 'Domain_Configuration_Author_Defaults',
                              header => [{col1 => 'Defaults which can be overridden by Author',
@@ -1037,6 +1039,19 @@ sub print_config_box {
                 $output .= $item->{'print'}->('shared',$dom,$settings,\$rowtotal);
             } elsif ($action eq 'passwords') {
                 $output .= $item->{'print'}->('middle',$dom,$confname,$settings,\$rowtotal);
+            } elsif ($action eq 'lti') {
+                $output .= $item->{'print'}->('upper',$dom,$settings,\$rowtotal).'
+                           </table>
+                          </td>
+                         </tr>
+                         <tr>
+                          <td>
+                          <table class="LC_nested">
+                           <tr class="LC_info_row">
+                            <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
+                            <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>
+                           </tr>'."\n".
+                           $item->{'print'}->('middle',$dom,$settings,\$rowtotal);
             } else {
                 $output .= $item->{'print'}->('middle',$dom,$settings,\$rowtotal);
             }
@@ -1069,6 +1084,10 @@ sub print_config_box {
               <td class="LC_right_item"'.$colspan.'>'.&mt($item->{'header'}->[8]->{'col2'}).'</td></tr>'.
                            $item->{'print'}->('bottom',$dom,$settings,\$rowtotal);
             } else {
+                my $hdridx = 2;
+                if ($action eq 'lti') {
+                    $hdridx = 3;
+                }
                 $output .= '
            </table>
           </td>
@@ -1077,8 +1096,8 @@ sub print_config_box {
            <td>
             <table class="LC_nested">
              <tr class="LC_info_row">
-              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
-              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>
+              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[$hdridx]->{'col1'}).'</td>
+              <td class="LC_right_item">'.&mt($item->{'header'}->[$hdridx]->{'col2'}).'</td>
              </tr>'."\n";
                 if ($action eq 'coursecategories') {
                     $output .= &print_coursecategories('bottom',$dom,$item,$settings,\$rowtotal);
@@ -1089,6 +1108,7 @@ sub print_config_box {
                     } else {
                         $output .= $item->{'print'}->('lower',$dom,$settings,\$rowtotal);
                     }
+                    $hdridx ++;
                     $output .= '
              </tr>
             </table>
@@ -1098,8 +1118,8 @@ sub print_config_box {
            <td>
             <table class="LC_nested">
              <tr class="LC_info_row">
-              <td class="LC_left_item'.$leftnobr.'"'.$colspan.'>'.&mt($item->{'header'}->[3]->{'col1'}).'</td>
-              <td class="LC_right_item"'.$colspan.'>'.&mt($item->{'header'}->[3]->{'col2'}).'</td></tr>'."\n";
+              <td class="LC_left_item'.$leftnobr.'"'.$colspan.'>'.&mt($item->{'header'}->[$hdridx]->{'col1'}).'</td>
+              <td class="LC_right_item"'.$colspan.'>'.&mt($item->{'header'}->[$hdridx]->{'col2'}).'</td></tr>'."\n";
                     if ($action eq 'passwords') {
                         $output .= $item->{'print'}->('bottom',$dom,$confname,$settings,\$rowtotal);
                     } else {
@@ -6176,7 +6196,7 @@ sub print_lti {
     my ($position,$dom,$settings,$rowtotal) = @_;
     my $itemcount = 1;
     my ($datatable,$css_class);
-    my (%rules,%encrypt,%privkeys,%linkprot);
+    my (%rules,%encrypt,%privkeys,%linkprot,%suggestions);
     if (ref($settings) eq 'HASH') {
         if ($position eq 'top') {
             if (exists($settings->{'encrypt'})) {
@@ -6199,12 +6219,18 @@ sub print_lti {
                     }
                 }
             }
-        } elsif ($position eq 'middle') {
+        } elsif ($position eq 'upper') {
             if (exists($settings->{'rules'})) {
                 if (ref($settings->{'rules'}) eq 'HASH') {
                     %rules = %{$settings->{'rules'}};
                 }
             }
+        } elsif ($position eq 'middle') {
+            if (exists($settings->{'suggested'})) {
+                if (ref($settings->{'suggested'}) eq 'HASH') {
+                    %suggestions = %{$settings->{'suggested'}};
+                }
+            }
         } elsif ($position eq 'lower') {
             if (exists($settings->{'linkprot'})) {
                 if (ref($settings->{'linkprot'}) eq 'HASH') {
@@ -6215,7 +6241,7 @@ sub print_lti {
                 }
             }
         } else {
-            foreach my $key ('encrypt','private','rules','linkprot') {
+            foreach my $key ('encrypt','private','rules','linkprot','suggestions') {
                 if (exists($settings->{$key})) {
                     delete($settings->{$key});
                 }
@@ -6224,11 +6250,14 @@ sub print_lti {
     }
     if ($position eq 'top') {
         $datatable = &secrets_form($dom,'ltisec',\%encrypt,\%privkeys,$rowtotal);
-    } elsif ($position eq 'middle') {
+    } elsif ($position eq 'upper') {
         $datatable = &password_rules('ltisecrets',\$itemcount,\%rules);
         $$rowtotal += $itemcount;
+    } elsif ($position eq 'middle') {
+        $datatable = &linkprot_suggestions(\%suggestions,\$itemcount);
+        $$rowtotal += $itemcount;
     } elsif ($position eq 'lower') {
-         $datatable .= &Apache::courseprefs::print_linkprotection($dom,'',$settings,$rowtotal,'','','domain');
+        $datatable .= &Apache::courseprefs::print_linkprotection($dom,'',$settings,$rowtotal,'','','domain');
     } else {
         my ($switchserver,$switchmessage);
         $switchserver = &check_switchserver($dom);
@@ -6815,6 +6844,58 @@ sub ltimenu_titles {
     );
 }
 
+sub linkprot_suggestions {
+    my ($suggested,$itemcount) = @_;
+    my $count = 0;
+    my $next = 1;
+    my %lt = &Apache::lonlocal::texthash(
+                                          'name' => 'Suggested Launcher',
+                                          'info' => 'Recommendations',
+                                        );
+    my ($datatable,$css_class,$dest);
+    if (ref($suggested) eq 'HASH') {
+        my @current = sort { $a <=> $b } keys(%{$suggested});
+        $next += $current[-1];
+        for (my $i=0; $i<@current; $i++) {
+            my $num = $current[$i];
+            my %values;
+            if (ref($suggested->{$num}) eq 'HASH') {
+                %values = %{$suggested->{$num}};
+            } else {
+                next;
+            }
+            $css_class = $$itemcount%2?' class="LC_odd_row"':'';
+            $datatable .=
+                '<tr '.$css_class.'><td><span class="LC_nobreak">'."\n".
+                '<label><input type="checkbox" name="linkprot_suggested_del" value="'.$i.'" />'."\n".
+                &mt('Delete?').'</label></span></td><td>'."\n".
+                '<div class="LC_floatleft"><fieldset><legend>'.$lt{'name'}.'</legend>'."\n".
+                '<input type="text" size="15" name="linkprot_suggested_name_'.$i.'" value="'.$values{'name'}.'" autocomplete="off" />'."\n".
+                '</fieldset></div>'.
+                '<div class="LC_floatleft"><fieldset><legend>'.$lt{'info'}.'</legend>'."\n".
+                '<textarea cols="55" rows="5" name="linkprot_suggested_info_'.$i.'">'.$values{'info'}.'</textarea>'.
+                '</fieldset></div>'.
+                '<div style="padding:0;clear:both;margin:0;border:0"></div>'."\n".
+                '<input type="hidden" name="linkprot_suggested_id_'.$i.'" value="'.$num.'" /></td></tr>'."\n";
+            $$itemcount ++;
+        }
+    }
+    $css_class = $$itemcount%2?' class="LC_odd_row"':'';
+    $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak">'."\n".
+                  '<input type="hidden" name="linkprot_suggested_maxnum" value="'.$next.'" />'."\n".
+                  '<input type="checkbox" name="linkprot_suggested_add" value="1" />'.&mt('Add').'</span></td>'."\n".
+                  '<td>'."\n".
+                  '<div class="LC_floatleft"><fieldset><legend>'.$lt{'name'}.'</legend>'."\n".
+                  '<input type="text" size="15" name="linkprot_suggested_name_add" value="" autocomplete="off" />'."\n".
+                  '</fieldset></div>'.
+                  '<div class="LC_floatleft"><fieldset><legend>'.$lt{'info'}.'</legend>'."\n".
+                  '<textarea cols="55" rows="5" name="linkprot_suggested_info_add"></textarea>'.
+                  '</fieldset></div>'.
+                  '<div style="padding:0;clear:both;margin:0;border:0"></div>'."\n".
+                  '</td></tr>'."\n";
+    return $datatable;
+}
+
 sub print_coursedefaults {
     my ($position,$dom,$settings,$rowtotal) = @_;
     my ($css_class,$datatable,%checkedon,%checkedoff,%defaultchecked,@toggles);
@@ -6822,7 +6903,7 @@ sub print_coursedefaults {
     my %choices =  &Apache::lonlocal::texthash (
         canuse_pdfforms      => 'Course/Community users can create/upload PDF forms',
         uploadquota          => 'Default quota for files uploaded directly to course/community using Course Editor (MB)',
-        coursequota          => 'Default cumulative quota for all group portfolio spaces in course',
+        coursequota          => 'Default cumulative quota for all group portfolio spaces in course (MB)',
         anonsurvey_threshold => 'Responder count needed before showing submissions for anonymous surveys',
         coursecredits        => 'Credits can be specified for courses',
         uselcmath            => 'Math preview uses LON-CAPA previewer (javascript) in place of DragMath (Java)',
@@ -6835,6 +6916,7 @@ sub print_coursedefaults {
         ltiauth              => 'Student username in LTI launch of deep-linked URL can be accepted without re-authentication',
         domexttool           => 'External Tools defined in the domain may be used in courses/communities (by type)',
         exttool              => 'External Tools can be defined and configured in courses/communities (by type)',
+        crsauthor            => 'Standard LON-CAPA problems can be created within a course/community (by type)',
     );
     my %staticdefaults = (
                            anonsurvey_threshold => 10,
@@ -6844,6 +6926,7 @@ sub print_coursedefaults {
                            mysqltables          => 172800,
                            domexttool           => 1,
                            exttool              => 0,
+                           crsauthor            => 1,
                          );
     if ($position eq 'top') {
         %defaultchecked = (
@@ -6964,6 +7047,7 @@ sub print_coursedefaults {
         my $ltiauth = 0;
         my %domexttool;
         my %exttool;
+        my %crsauthor;
         my @types = ('official','unofficial','community','textbook','placement');
         if (ref($settings) eq 'HASH') {
             if ($settings->{'ltiauth'}) {
@@ -6989,6 +7073,19 @@ sub print_coursedefaults {
                     }
                 }
             }
+            if (ref($settings->{'crsauthor'}) eq 'HASH') {
+                foreach my $type (@types) {
+                    if ($settings->{'crsauthor'}->{$type}) {
+                        $crsauthor{$type} = ' checked="checked"';
+                    }
+                }
+            } else {
+                foreach my $type (@types) {
+                    if ($staticdefaults{'crsauthor'}) {
+                        $crsauthor{$type} = ' checked="checked"';
+                    }
+                }
+            }
             $currdefresponder = $settings->{'anonsurvey_threshold'};
             if (ref($settings->{'uploadquota'}) eq 'HASH') {
                 foreach my $type (keys(%{$settings->{'uploadquota'}})) {
@@ -7048,6 +7145,9 @@ sub print_coursedefaults {
                 if ($staticdefaults{'domexttool'}) {
                     $domexttool{$type} = ' checked="checked"';
                 }
+                if ($staticdefaults{'crsauthor'}) {
+                    $crsauthor{$type} = ' checked="checked"';
+                }
             }
         }
         if (!$currdefresponder) {
@@ -7196,6 +7296,21 @@ sub print_coursedefaults {
                           &mt($type).'</span></td>'."\n";
         }
         $datatable .= '</tr></table></td></tr>'."\n";
+        $itemcount ++;
+        $css_class = $itemcount%2 ? ' class="LC_odd_row"' : '';
+        $datatable .= '<tr'.$css_class.'><td><span class="LC_nobreak">'.
+                      $choices{'crsauthor'}.
+                      '</span></td>'.
+                      '<td style="text-align: right" class="LC_right_item">'.
+                      '<table><tr>';
+        foreach my $type (@types) {
+            $datatable .= '<td style="text-align: left">'.
+                          '<span class="LC_nobreak">'.
+                          '<input type="checkbox" name="crsauthor"'.
+                          ' value="'.$type.'"'.$crsauthor{$type}.' />'.
+                          &mt($type).'</span></td>'."\n";
+        }
+        $datatable .= '</tr></table></td></tr>'."\n";
     }
     $$rowtotal += $itemcount;
     return $datatable;
@@ -7209,9 +7324,10 @@ sub print_authordefaults {
     if ($position eq 'top') {
         my %defaultchecked = (
                             'nocodemirror' => 'off',
+                            'daxecollapse' => 'off',
                             'domcoordacc'  => 'on',
                           );
-        my @toggles = ('nocodemirror','domcoordacc');
+        my @toggles = ('nocodemirror','daxecollapse','domcoordacc');
         ($datatable,$itemcount) = &radiobutton_prefs($settings,\@toggles,\%defaultchecked,
                                                      \%titles,$itemcount);
         my %staticdefaults = (
@@ -7330,7 +7446,7 @@ sub print_authordefaults {
         my $checkedno = ' checked="checked"';
         my ($checkedon,$checkedoff);
         if (ref($quotas{'webdav'}) eq 'HASH') {
-            if ($quotas{'webdav'}{'_LC_adv'} =~ /^0|1$/) { 
+            if ($quotas{'webdav'}{'_LC_adv'} =~ /^0|1$/) {
                 if ($quotas{'webdav'}{'_LC_adv'}) {
                     $checkedon = $checkedno;
                 } else {
@@ -7359,7 +7475,7 @@ sub print_authordefaults {
                 $text = $titles{'overon'};
                 $val = 1;
                 $checked = $checkedon;
-            } 
+            }
             $datatable .= '<span class="LC_nobreak"><label>'.
                           '<input type="radio" name="webdav_LC_adv"'.
                           ' value="'.$val.'"'.$checked.' />'.
@@ -7380,6 +7496,7 @@ sub authordefaults_titles {
                webdav => 'WebDAV',
                authorquota => 'Authoring Space quotas (MB)',
                nocodemirror => 'Deactivate CodeMirror for EditXML editor',
+               daxecollapse => 'Daxe editor: LON-CAPA standard menus start collapsed',
                domcoordacc => 'Dom. Coords. can enter Authoring Spaces in domain',
                edit  => 'Standard editor (Edit)',
                xml   => 'Text editor (EditXML)',
@@ -7388,7 +7505,7 @@ sub authordefaults_titles {
                webdav_LC_adv_over => '(overrides access based on affiliation, if set)',
                none => 'No override set',
                overon => 'Override -- webDAV on',
-               overoff => 'Override -- webDAV off', 
+               overoff => 'Override -- webDAV off',
     );
 }
 
@@ -8335,8 +8452,10 @@ sub print_wafproxy {
             my $dom_in_effect;
             my $aliasrows = '<tr>'.
                             '<td class="LC_left_item" style="vertical-align: baseline;">'.
-                            &mt('Hostname').':&nbsp;'.
-                            '<i>'.&Apache::lonnet::hostname($server).'</i></td><td>&nbsp;</td>';
+                            &mt('Hostname').': '.
+                            '<span class="LC_nobreak LC_cusr_emph">'.
+                            &Apache::lonnet::hostname($server).
+                            '</span></td><td>&nbsp;</td>';
             if ($othercontrol{$server}) {
                 $dom_in_effect = $othercontrol{$server};
                 my ($current,$forsaml);
@@ -13264,13 +13383,14 @@ sub modify_authordefaults {
                            'copyright'    => 'default',
                            'sourceavail'  => 'closed',
                            'nocodemirror' => 'off',
+                           'daxecollapse' => 'off',
                            'domcoordacc'  => 'on',
                            'editors'      => ['edit','xml'].
                            'authorquota'  => 500,
                            'webdav'       => 0,
                          );
     my %titles = &authordefaults_titles();
-    foreach my $item ('nocodemirror','domcoordacc') {
+    foreach my $item ('nocodemirror','daxecollapse','domcoordacc') {
         if ($env{'form.'.$item} =~ /^(0|1)$/) {
             $confhash{$item} = $env{'form.'.$item};
         }
@@ -13290,7 +13410,7 @@ sub modify_authordefaults {
         }
     }
     $confhash{'editors'} = \@editors;
-   
+
     my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
     my @insttypes;
     if (ref($types) eq 'ARRAY') {
@@ -13314,13 +13434,13 @@ sub modify_authordefaults {
         $save_quotas{'webdav'}{'_LC_adv'} = $env{'form.webdav_LC_adv'};
     }
     if (ref($domconfig{'authordefaults'}) eq 'HASH') {
-        foreach my $item ('nocodemirror','domcoordacc','copyright','sourceavail') {
+        foreach my $item ('nocodemirror','daxecollapse','domcoordacc','copyright','sourceavail') {
             if ($domconfig{'authordefaults'}{$item} ne $confhash{$item}) {
                 $changes{$item} = 1;
              }
         }
         if (ref($domconfig{'authordefaults'}{'editors'}) eq 'ARRAY') {
-            my @diffs = 
+            my @diffs =
                 &Apache::loncommon::compare_arrays($confhash{'editors'},
                                                    $domconfig{'authordefaults'}{'editors'});
             unless (@diffs == 0) {
@@ -13336,8 +13456,8 @@ sub modify_authordefaults {
         }
     } else {
         my @offon = ('off','on');
-        foreach my $item ('nocodemirror','domcoordacc') {
-            if ($offon[$confhash{$item}] ne $staticdefaults{$item}) { 
+        foreach my $item ('nocodemirror','daxecollapse','domcoordacc') {
+            if ($offon[$confhash{$item}] ne $staticdefaults{$item}) {
                 $changes{$item} = 1; 
             }
         }
@@ -13374,7 +13494,7 @@ sub modify_authordefaults {
     }
     if (ref($curr_quotas{'webdav'}) eq 'HASH') {
         if (exists($save_quotas{'webdav'}{'_LC_adv'})) {
-            if ($save_quotas{'webdav'}{'_LC_adv'} ne $curr_quotas{'webdav'}{'_LC_adv'}) { 
+            if ($save_quotas{'webdav'}{'_LC_adv'} ne $curr_quotas{'webdav'}{'_LC_adv'}) {
                 $changes{'webdav_LC_adv'} = 1;
             }
         } elsif (exists($curr_quotas{'webdav'}{'_LC_adv'})) {
@@ -13394,7 +13514,7 @@ sub modify_authordefaults {
         if (keys(%changes)) {
             my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
             if ((exists($changes{'authorquota'})) || (exists($changes{'webdav'})) ||
-                ($changes{'webdav_LC_adv'})) { 
+                ($changes{'webdav_LC_adv'})) {
                 if ((exists($changes{'authorquota'})) && (ref($save_quotas{'authorquota'}) eq 'HASH')) {
                     $domdefaults{'authorquota'} = $save_quotas{'authorquota'};
                 }
@@ -13405,7 +13525,7 @@ sub modify_authordefaults {
             }
             $resulttext = &mt('Changes made:').'<ul>';
             my $authoroverride;
-            foreach my $key ('nocodemirror','domcoordacc','copyright','sourceavail') {
+            foreach my $key ('nocodemirror','daxecollapse','domcoordacc','copyright','sourceavail') {
                 if (exists($changes{$key})) {
                     $domdefaults{$key} = $confhash{$key};
                     my $shown;
@@ -13413,14 +13533,14 @@ sub modify_authordefaults {
                         $resulttext .= '<li>'.&mt('Defaults which can be overridden by Author').'<ul>';
                         $authoroverride = 1;
                     }
-                    if (($key eq 'nocodemirror') || ($key eq 'domcoordacc')) { 
+                    if (($key eq 'nocodemirror') || ($key eq 'daxecollapse') || ($key eq 'domcoordacc')) {
                         $shown = ($confhash{$key} ? &mt('Yes') : &mt('No'));
                     } elsif ($key eq 'copyright') {
                         $shown = &Apache::loncommon::copyrightdescription($confhash{$key});
                     } elsif ($key eq 'sourceavail') {
                         $shown = &Apache::loncommon::source_copyrightdescription($confhash{$key});
                     }
-                    $resulttext .= '<li>'.&mt('[_1] set to: [_2]',$titles{$key},$shown).'</li>'; 
+                    $resulttext .= '<li>'.&mt('[_1] set to: [_2]',$titles{$key},$shown).'</li>';
                 }
             }
             if ($authoroverride) {
@@ -13461,7 +13581,7 @@ sub modify_authordefaults {
                         }
                     }
                     $resulttext .= '<li>'.&mt('[_1] set to: [_2]',$titles{$key},$shown).'</li>';
-                }                               
+                }
             }
             if ($domcoordoverride) {
                 $resulttext .= '</ul></li>';
@@ -14980,7 +15100,6 @@ sub lti_security_results {
                                        off => &mt('Encryption of stored external tool secrets defined in domain disabled'),
                                      },
                              );
-
             }
             my @types= ('crs','dom');
             if ($context eq 'lti') {
@@ -15076,6 +15195,28 @@ sub lti_security_results {
             }
         } elsif ($item eq 'linkprot') {
             next;
+        } elsif ($item eq 'suggested') {
+            if ((ref($secchanges->{'suggested'}) eq 'HASH') &&
+                (ref($newsec->{'suggested'}) eq 'HASH')) {
+                my $suggestions;
+                foreach my $id (sort { $a <=> $b } keys(%{$secchanges->{'suggested'}})) {
+                    if (ref($newsec->{'suggested'}->{$id}) eq 'HASH') {
+                        my $name = $newsec->{'suggested'}->{$id}->{'name'};
+                        my $info = $newsec->{'suggested'}->{$id}->{'info'};
+                        $suggestions .= '<li>'.&mt('Launcher: [_1]',$name).'<br />'.
+                                               &mt('Recommend: [_1]','<pre>'.$info.'</pre>').
+                                        '</li>';
+                    } else {
+                        $suggestions .= '<li>'.&mt('Recommendations deleted for Launcher: [_1]',
+                                                   $newsec->{'suggested'}->{$id}).'</li>';
+                    }
+                }
+                if ($suggestions) {
+                    $output .= '<li>'.&mt('Hints in Courses for Link Protector Configuration').
+                               '<ul>'.$suggestions.'</ul>'.
+                               '</li>';
+                }
+            }
         }
     }
     if ($needs_update) {
@@ -15680,7 +15821,7 @@ sub modify_lti {
         }
     }
     if (ref($currltisec{'linkprot'}) eq 'HASH') {
-        foreach my $id (%{$currltisec{'linkprot'}}) {
+        foreach my $id (keys(%{$currltisec{'linkprot'}})) {
             next if ($id !~ /^\d+$/);
             unless (exists($linkprotchg{$id})) {
                 if (ref($currltisec{'linkprot'}{$id}) eq 'HASH') {
@@ -15702,17 +15843,75 @@ sub modify_lti {
     if ($proterror) {
         $errors .= '<li>'.$proterror.'</li>';
     }
+
+    my (%delsuggested,%suggids,@suggested);;
+    if (ref($currltisec{'suggested'}) eq 'HASH') {
+        my $maxnum = $env{'form.linkprot_suggested_maxnum'};
+        my @todelete = &Apache::loncommon::get_env_multiple('form.linkprot_suggested_del');
+        for (my $i=0; $i<$maxnum; $i++) {
+            my $itemid = $env{'form.linkprot_suggested_id_'.$i};
+            $itemid =~ s/\D+//g;
+            if ($itemid) {
+                if (ref($currltisec{'suggested'}->{$itemid}) eq 'HASH') {
+                    push(@suggested,$i);
+                    $suggids{$i} = $itemid;
+                    if ((@todelete > 0) && (grep(/^$i$/,@todelete))) {
+                        if (ref($currltisec{'suggested'}{$itemid}) eq 'HASH') {
+                            $delsuggested{$itemid} = $currltisec{'suggested'}{$itemid}{'name'};
+                        }
+                    } else {
+                        if ($env{'form.linkprot_suggested_name_'.$i} eq '') {
+                            $delsuggested{$itemid} = $currltisec{'suggested'}{$itemid}{'name'};
+                        } else {
+                            $env{'form.linkprot_suggested_name_'.$i} =~ s/(`)/'/g;
+                            $env{'form.linkprot_suggested_info_'.$i} =~ s/(`)/'/g;
+                            $newltisec{'suggested'}{$itemid}{'name'} = $env{'form.linkprot_suggested_name_'.$i};
+                            $newltisec{'suggested'}{$itemid}{'info'} = $env{'form.linkprot_suggested_info_'.$i};
+                            if (($currltisec{'suggested'}{$itemid}{'name'} ne $newltisec{'suggested'}{$itemid}{'name'}) ||
+                                ($currltisec{'suggested'}{$itemid}{'info'} ne $newltisec{'suggested'}{$itemid}{'info'})) {
+                                $secchanges{'suggested'}{$itemid} = 1;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    foreach my $key (keys(%delsuggested)) {
+        $newltisec{'suggested'}{$key} = $delsuggested{$key};
+        $secchanges{'suggested'}{$key} = 1;
+    }
+    if (($env{'form.linkprot_suggested_add'}) &&
+        ($env{'form.linkprot_suggested_name_add'} ne '')) {
+        $env{'form.linkprot_suggested_name_add'} =~ s/(`)/'/g;
+        $env{'form.linkprot_suggested_info_add'} =~ s/(`)/'/g;
+        my ($newsuggid,$errormsg) = &get_lti_id($dom,$env{'form.linkprot_suggested_name_add'},'suggested');
+        if ($newsuggid) {
+            $newltisec{'suggested'}{$newsuggid}{'name'} = $env{'form.linkprot_suggested_name_add'};
+            $newltisec{'suggested'}{$newsuggid}{'info'} = $env{'form.linkprot_suggested_info_add'};
+            $secchanges{'suggested'}{$newsuggid} = 1;
+        } else {
+            my $error = &mt('Failed to acquire unique ID for new Link Protectors in Courses Suggestion');
+            if ($errormsg) {
+                $error .= ' ('.$errormsg.')';
+            }
+            $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
+        }
+    }
     my (@items,%deletions,%itemids);
     if ($env{'form.lti_add'}) {
         my $consumer = $env{'form.lti_consumer_add'};
         $consumer =~ s/(`)/'/g;
-        ($newid,my $error) = &get_lti_id($dom,$consumer);
+        ($newid,my $errormsg) = &get_lti_id($dom,$consumer,'lti');
         if ($newid) {
             $itemids{'add'} = $newid;
             push(@items,'add');
             $changes{$newid} = 1;
         } else {
             my $error = &mt('Failed to acquire unique ID for new LTI configuration');
+            if ($errormsg) {
+                $error .= ' ('.$errormsg.')';
+            }
             $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
         }
     }
@@ -16306,7 +16505,8 @@ sub modify_lti {
         }
         $resulttext .= '</ul>';
         if (ref($lastactref) eq 'HASH') {
-            if (($secchanges{'encrypt'}) || ($secchanges{'private'})) {
+            if (($secchanges{'encrypt'}) || ($secchanges{'private'}) || (exists($secchanges{'suggested'}))) {
+                &Apache::lonnet::get_domain_defaults($dom,1);
                 $lastactref->{'domdefaults'} = 1;
             }
         }
@@ -16345,23 +16545,26 @@ sub get_priv_creds {
 }
 
 sub get_lti_id {
-    my ($domain,$consumer) = @_;
-    # get lock on lti db
+    my ($domain,$consumer,$dbname) = @_;
+    unless (($dbname eq 'lti') || ($dbname eq 'suggested')) {
+        return ('','invalid db');
+    }
+    # get lock on db
     my $lockhash = {
                       lock => $env{'user.name'}.
                               ':'.$env{'user.domain'},
                    };
     my $tries = 0;
-    my $gotlock = &Apache::lonnet::newput_dom('lti',$lockhash,$domain);
+    my $gotlock = &Apache::lonnet::newput_dom($dbname,$lockhash,$domain);
     my ($id,$error);
 
     while (($gotlock ne 'ok') && ($tries<10)) {
         $tries ++;
         sleep (0.1);
-        $gotlock = &Apache::lonnet::newput_dom('lti',$lockhash,$domain);
+        $gotlock = &Apache::lonnet::newput_dom($dbname,$lockhash,$domain);
     }
     if ($gotlock eq 'ok') {
-        my %currids = &Apache::lonnet::dump_dom('lti',$domain);
+        my %currids = &Apache::lonnet::dump_dom($dbname,$domain);
         if ($currids{'lock'}) {
             delete($currids{'lock'});
             if (keys(%currids)) {
@@ -16373,14 +16576,14 @@ sub get_lti_id {
                 $id = 1;
             }
             if ($id) {
-                unless (&Apache::lonnet::newput_dom('lti',{ $id => $consumer },$domain) eq 'ok') {
+                unless (&Apache::lonnet::newput_dom($dbname,{ $id => $consumer },$domain) eq 'ok') {
                     $error = 'nostore';
                 }
             } else {
                 $error = 'nonumber';
             }
         }
-        my $dellockoutcome = &Apache::lonnet::del_dom('lti',['lock'],$domain);
+        my $dellockoutcome = &Apache::lonnet::del_dom($dbname,['lock'],$domain);
     } else {
         $error = 'nolock';
     }
@@ -21009,6 +21212,7 @@ sub modify_coursedefaults {
                            postsubmit           => 60,
                            mysqltables          => 172800,
                            domexttool           => 1,
+                           crsauthor            => 1,
                          );
     my %texoptions = (
                         MathJax  => 'MathJax',
@@ -21200,9 +21404,10 @@ sub modify_coursedefaults {
                 $changes{'postsubmit'} = 1;
             }
         }
-        my (%newdomexttool,%newexttool,%olddomexttool,%oldexttool);
+        my (%newdomexttool,%newexttool,%newcrsauthor,%olddomexttool,%oldexttool,%oldcrsauthor);
         map { $newdomexttool{$_} = 1; } &Apache::loncommon::get_env_multiple('form.domexttool');
         map { $newexttool{$_} = 1; } &Apache::loncommon::get_env_multiple('form.exttool');
+        map { $newcrsauthor{$_} = 1; } &Apache::loncommon::get_env_multiple('form.crsauthor');
         if (ref($domconfig{'coursedefaults'}{'domexttool'}) eq 'HASH') {
             %olddomexttool = %{$domconfig{'coursedefaults'}{'domexttool'}};
         } else {
@@ -21225,6 +21430,17 @@ sub modify_coursedefaults {
                }
             }
         }
+        if (ref($domconfig{'coursedefaults'}{'crsauthor'}) eq 'HASH') {
+            %oldcrsauthor = %{$domconfig{'coursedefaults'}{'crsauthor'}};
+        } else {
+            foreach my $type (@types) {
+               if ($staticdefaults{'crsauthor'}) {
+                   $oldcrsauthor{$type} = 1;
+               } else {
+                   $oldcrsauthor{$type} = 0;
+               }
+            }
+        }
         foreach my $type (@types) {
             unless ($newdomexttool{$type}) {
                 $newdomexttool{$type} = 0;
@@ -21232,15 +21448,22 @@ sub modify_coursedefaults {
             unless ($newexttool{$type}) {
                 $newexttool{$type} = 0;
             }
+            unless ($newcrsauthor{$type}) {
+                $newcrsauthor{$type} = 0;
+            }
             if ($newdomexttool{$type} != $olddomexttool{$type}) {
                 $changes{'domexttool'} = 1;
             }
             if ($newexttool{$type} != $oldexttool{$type}) {
                 $changes{'exttool'} = 1;
             }
+            if ($newcrsauthor{$type} != $oldcrsauthor{$type}) {
+                $changes{'crsauthor'} = 1;
+            }
         }
         $defaultshash{'coursedefaults'}{'domexttool'} = \%newdomexttool;
         $defaultshash{'coursedefaults'}{'exttool'} = \%newexttool;
+        $defaultshash{'coursedefaults'}{'crsauthor'} = \%newcrsauthor;
     }
     my $putresult = &Apache::lonnet::put_dom('configuration',\%defaultshash,
                                              $dom);
@@ -21251,7 +21474,7 @@ sub modify_coursedefaults {
                 ($changes{'coursecredits'}) || ($changes{'uselcmath'}) || ($changes{'usejsme'}) ||
                 ($changes{'canclone'}) || ($changes{'mysqltables'}) || ($changes{'texengine'}) ||
                 ($changes{'inline_chem'}) || ($changes{'ltiauth'}) || ($changes{'domexttool'}) ||
-                ($changes{'exttool'}) || ($changes{'coursequota'})) {
+                ($changes{'exttool'}) || ($changes{'coursequota'}) || ($changes{'crsauthor'})) {
                 foreach my $item ('canuse_pdfforms','uselcmath','usejsme','inline_chem','texengine',
                                   'ltiauth') {
                     if ($changes{$item}) {
@@ -21317,6 +21540,13 @@ sub modify_coursedefaults {
                         }
                     }
                 }
+                if ($changes{'crsauthor'}) {
+                    if (ref($defaultshash{'coursedefaults'}{'crsauthor'}) eq 'HASH') {
+                        foreach my $type (@types) {
+                            $domdefaults{$type.'crsauthor'}=$defaultshash{'coursedefaults'}{'crsauthor'}{$type};
+                        }
+                    }
+                }
                 my $cachetime = 24*60*60;
                 &Apache::lonnet::do_cache_new('domdefaults',$dom,\%domdefaults,$cachetime);
                 if (ref($lastactref) eq 'HASH') {
@@ -21467,33 +21697,34 @@ sub modify_coursedefaults {
                     } else {
                         $resulttext .= '<li>'.&mt('LTI launch of deep-linked URL will require re-authentication').'</li>';
                     }
-                } elsif ($item eq 'domexttool') {
+                } elsif (($item eq 'domexttool') || ($item eq 'exttool') || ($item eq 'crsauthor')) {
                     my @noyes = (&mt('no'),&mt('yes'));
-                    if (ref($defaultshash{'coursedefaults'}{'domexttool'}) eq 'HASH') {
-                        $resulttext .= '<li>'.&mt('External Tools defined in the domain may be used as follows:').'<ul>'.
-                                       '<li>'.&mt('Official courses: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{'domexttool'}{'official'}].'</b>').'</li>'.
-                                       '<li>'.&mt('Unofficial courses: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{'domexttool'}{'unofficial'}].'</b>').'</li>'.
-                                       '<li>'.&mt('Textbook courses: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{'domexttool'}{'textbook'}].'</b>').'</li>'.
-                                       '<li>'.&mt('Placement tests: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{'domexttool'}{'placement'}].'</b>').'</li>'.
-                                       '<li>'.&mt('Communities: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{'domexttool'}{'community'}].'</b>').'</li>'.
-                                       '</ul>'.
-                                       '</li>';
-                    } else {
-                        $resulttext .= '<li>'.&mt('External Tools defined in the domain may be used in all course types, by default').'</li>';
-                    }
-                } elsif ($item eq 'exttool') {
-                    my @noyes = (&mt('no'),&mt('yes'));
-                    if (ref($defaultshash{'coursedefaults'}{'exttool'}) eq 'HASH') {
-                        $resulttext .= '<li>'.&mt('External Tools can be defined and configured in course containers as follows:').'<ul>'.
-                                       '<li>'.&mt('Official courses: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{'exttool'}{'official'}].'</b>').'</li>'.
-                                       '<li>'.&mt('Unofficial courses: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{'exttool'}{'unofficial'}].'</b>').'</li>'.
-                                       '<li>'.&mt('Textbook courses: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{'exttool'}{'textbook'}].'</b>').'</li>'.
-                                       '<li>'.&mt('Placement tests: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{'exttool'}{'placement'}].'</b>').'</li>'.
-                                       '<li>'.&mt('Communities: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{'exttool'}{'community'}].'</b>').'</li>'.
+                    my %status = (
+                                   domexttool => {
+                                                  ishash => &mt('External Tools defined in the domain may be used as follows:'), 
+                                                  default => &mt('External Tools defined in the domain may be used in all course types, by default'),
+                                                 },
+                                   exttool => {
+                                                  ishash => &mt('External Tools can be defined and configured in course containers as follows:'),
+                                                  default => &mt('External Tools can not be defined in any course types, by default'),
+                                              },
+                                   crsauthor => {
+                                                  ishash => &mt('Standard Problems can be created within course containers as follows:'),
+                                                  default => &mt('Standard Problems can be created within any course type, by default'),
+                                                },
+                                 );
+                                   
+                    if (ref($defaultshash{'coursedefaults'}{$item}) eq 'HASH') {
+                        $resulttext .= '<li>'.$status{$item}{'ishash'}.'<ul>'.
+                                       '<li>'.&mt('Official courses: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{$item}{'official'}].'</b>').'</li>'.
+                                       '<li>'.&mt('Unofficial courses: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{$item}{'unofficial'}].'</b>').'</li>'.
+                                       '<li>'.&mt('Textbook courses: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{$item}{'textbook'}].'</b>').'</li>'.
+                                       '<li>'.&mt('Placement tests: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{$item}{'placement'}].'</b>').'</li>'.
+                                       '<li>'.&mt('Communities: [_1]','<b>'.$noyes[$defaultshash{'coursedefaults'}{$item}{'community'}].'</b>').'</li>'.
                                        '</ul>'.
                                        '</li>';
                     } else {
-                        $resulttext .= '<li>'.&mt('External Tools can not be defined in any course types, by default').'</li>';
+                        $resulttext .= '<li>'.$status{$item}{'default'}.'</li>';
                     }
                 }
             }