--- loncom/interface/lonrequestcourse.pm	2016/04/02 04:30:21	1.96
+++ loncom/interface/lonrequestcourse.pm	2020/02/12 22:15:40	1.108
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Request a course
 #
-# $Id: lonrequestcourse.pm,v 1.96 2016/04/02 04:30:21 raeburn Exp $
+# $Id: lonrequestcourse.pm,v 1.108 2020/02/12 22:15:40 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -119,6 +119,10 @@ use Apache::loncoursequeueadmin;
 use Apache::lonuserutils;
 use LONCAPA qw(:DEFAULT :match);
 
+my $registered_flush;
+my $registered_instcats;
+my $modified_dom;
+
 sub handler {
     my ($r) = @_;
     &Apache::loncommon::content_type($r,'text/html');
@@ -127,6 +131,10 @@ sub handler {
         return OK;
     }
 
+    $registered_flush = 0;
+    $registered_instcats = 0;
+    $modified_dom = '';
+
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
         ['action','showdom','cnum','state','crstype','queue','tabs']);
     &Apache::lonhtmlcommon::clear_breadcrumbs();
@@ -155,6 +163,23 @@ sub handler {
     }
 
     if ($canreq) {
+        if (($env{'form.crstype'} eq 'lti') && ($env{'request.lti.login'}) &&
+            ($env{'form.lti.reqrole'} eq 'cc') && ($env{'form.lti.reqcrs'}) &&
+            ($env{'form.lti.sourcecrs'} ne '')) {
+            if ($action eq 'process') {
+                if ($can_request{'lti'}) {
+                    my %domconfig = &Apache::lonnet::get_dom('configuration',['requestcourses'],$dom);
+                    &process_textbook_request($r,$dom,$action,\%domdefs,\%domconfig,\%can_request,'lti');
+                } else {
+                    $r->print(&header('Course Request','','','',{ 'only_body' => 1}).
+                              '<div>'.
+                              '<p class="LC_info">'.&mt('You do not have privileges to request creation of LTI courses.').'</p>'.
+                              '</div>'.
+                              &Apache::loncommon::end_page());
+                }
+            }
+            return OK;
+        }
         if (($env{'form.crstype'} eq 'textbook') || 
             (scalar(keys(%can_request)) == 1) && ($can_request{'textbook'})) {
             my %domconfig = &Apache::lonnet::get_dom('configuration',['requestcourses'],$dom);
@@ -192,7 +217,8 @@ sub handler {
                 }
             } else {
                 if ($can_request{'textbook'}) {
-                    &print_textbook_form($r,$dom,\@incdoms,\%domdefs,$domconfig{'requestcourses'},\%can_request);
+                    &print_textbook_form($r,$dom,\@incdoms,\%domdefs,$domconfig{'requestcourses'},
+                                         \%can_request,'textbook');
                 } else {
                     &textbook_request_disabled($r,$dom,$action,\%can_request);
                 }
@@ -2109,14 +2135,27 @@ sub print_personnel_menu {
         $output .= &Apache::lonhtmlcommon::row_headline().
                   '<h3>'.&Apache::loncommon::help_open_topic('Course_Request_Personnel').'&nbsp;'.$lt{$crstype}.' '.&mt('Include other personnel?').'</h3>';
     }
-    for (my $i=0; $i<$persontotal; $i++) { 
+    my $cansearch = 1;
+    my @alldoms = &Apache::lonnet::all_domains();
+    if (@alldoms == 1) {
+        my %domsrch = &Apache::lonnet::get_dom('configuration',
+                                               ['directorysrch'],$alldoms[0]);
+        if (ref($domsrch{'directorysrch'}) eq 'HASH') {
+            if ((!$domsrch{'directorysrch'}{'available'}) &&
+                ($domsrch{'directorysrch'}{'lcavailable'} eq '0')) {
+                $cansearch = 0;
+            }
+        }
+    }
+    my ($trusted,$untrusted) = &Apache::lonnet::trusted_domains('enroll',$dom);
+    for (my $i=0; $i<$persontotal; $i++) {
         my @linkargs = map { 'person_'.$i.'_'.$_ } (@items);
         my $linkargstr = join("','",@linkargs);
         my $uname_form = '<input type="text" name="person_'.$i.'_uname" value="" size="20" />';
         my $onchange = 'javascript:fix_domain('."'$formname','person_".$i."_dom',".
                        "'person_".$i."_hidedom','person_".$i."_uname'".');';
         my $udom_form = &Apache::loncommon::select_dom_form($dom,'person_'.$i.'_dom','',
-                                                            1,$onchange).
+                                                            1,$onchange,undef,$trusted,$untrusted).
                         '<input type="hidden" name="person_'.$i.'_hidedom" value="" />';
         my %form_elems;
         foreach my $item (@items) {
@@ -2133,9 +2172,14 @@ sub print_personnel_menu {
         }
         $sectionselector .= $newtitle.
             '<input type="text" name="person_'.$i.'_newsec" size="15" value="" />'."\n";
-        my $usersrchlinktxt = &mt('Search for user');
-        my $usersrchlink =  &Apache::loncommon::selectuser_link($formname,@linkargs,$dom,
-                            $usersrchlinktxt);
+        my $usersrchlink;
+        if ($cansearch) {
+            my $usersrchlinktxt = &mt('Search for user');
+            $usersrchlink = &Apache::loncommon::selectuser_link($formname,@linkargs,$dom,
+                                                                $usersrchlinktxt);
+        } else {
+            $usersrchlink = '&nbsp;';
+        }
         my $userchklinktxt = &mt('Check username');
         my $userchklink = &Apache::loncommon::selectuser_link($formname,@linkargs,$dom,
                             $userchklinktxt,'checkusername');
@@ -3168,6 +3212,8 @@ sub clone_form {
     my $type = 'Course';
     if ($crstype eq 'community') {
         $type = 'Community';
+    } elsif ($crstype eq 'placement') {
+        $type = 'Placement'; 
     }
     my %lt = &clone_text();
     my $output .= 
@@ -3175,7 +3221,7 @@ sub clone_form {
         &Apache::loncommon::select_dom_form($dom,'clonedom').'</label>'.
         &Apache::lonhtmlcommon::row_closure(1).
         &Apache::lonhtmlcommon::row_title($lt{'cid'}).'<label>'.
-        '<input type="text" size="25" name="clonecrs" value="" onfocus="this.blur();opencrsbrowser('."'$formname','clonecrs','clonedom','','','','','$type'".')" />'.
+        '<input type="text" size="25" name="clonecrs" value="" onfocus="this.blur();opencrsbrowser('."'$formname','clonecrs','clonedom','','','','$type'".')" />'.
         '</label>&nbsp;'.
         &Apache::loncommon::selectcourse_link($formname,'clonecrs','clonedom','','','',$type).
         &Apache::lonhtmlcommon::row_closure(1).
@@ -3225,7 +3271,7 @@ sub coursecode_form {
         }
         if (@{$codetitles} > 0) {
             my $lastitem = pop(@{$codetitles});
-            my $lastinput = '<input type="text" size="5" name="'.$sel.'_'.                                            $lastitem.'" />';
+            my $lastinput = '<input type="text" size="5" name="'.$sel.'_'.$lastitem.'" />';
             if (@{$codetitles} > 0) {
                 my $helplink;
                 if (defined($helpitem{$context})) {
@@ -3333,18 +3379,23 @@ sub get_course_dom {
                     return $env{'user.domain'};
                 }
             }
-            my @possible_doms;
+            my (@possible_doms,%willtrust);
             foreach my $type (@{$types}) {
                 my $dom_str = $env{'environment.reqcrsotherdom.'.$type};
                 if ($dom_str ne '') {
                     my @domains = split(',',$dom_str);
                     foreach my $entry (@domains) {
                         my ($extdom,$extopt) = split(':',$entry);
-                        if ($extdom eq $env{'request.role.domain'}) {
-                            return $extdom;
-                        } 
-                        unless(grep(/^\Q$extdom\E$/,@possible_doms)) {
-                            push(@possible_doms,$extdom);
+                        unless (exists($willtrust{$extdom})) {
+                            $willtrust{$extdom} = &Apache::lonnet::will_trust('reqcrs',$env{'user.domain'},$extdom);
+                        }
+                        if ($willtrust{$extdom}) {
+                            if ($extdom eq $env{'request.role.domain'}) {
+                                return $extdom;
+                            }
+                            unless(grep(/^\Q$extdom\E$/,@possible_doms)) {
+                                push(@possible_doms,$extdom);
+                            }
                         }
                     }
                 }
@@ -3844,6 +3895,24 @@ sub process_request {
                 }
                 $output .= '</p>';
                 $creationresult = 'created';
+                # Flush the course logs so reverse user roles immediately updated
+                unless ($registered_flush) {
+                    my $handlers = $r->get_handlers('PerlCleanupHandler');
+                    $r->set_handlers('PerlCleanupHandler' => [\&Apache::lonnet::flushcourselogs,@{$handlers}]);
+                    $registered_flush=1;
+                }
+                if ($instcode ne '') {
+                    &Apache::lonnet::devalidate_cache_new('instcats',$dom);
+                    # Update cache of self-cataloging courses on institution's server(s).
+                    if (&Apache::lonnet::shared_institution($dom)) {
+                        unless ($registered_instcats) {
+                            my $handlers = $r->get_handlers('PerlCleanupHandler');
+                            $r->set_handlers('PerlCleanupHandler' => [\&devalidate_remote_instcats,@{$handlers}]);
+                            $registered_instcats=1;
+                            $modified_dom = $dom;
+                        }
+                    }
+                }
             } else {
                 $output = '<span class="LC_error">';
                 if ($crstype eq 'community') {
@@ -3979,6 +4048,22 @@ sub process_request {
     }
 }
 
+sub devalidate_remote_instcats {
+    if ($modified_dom ne '') {
+        my %servers = &Apache::lonnet::internet_dom_servers($modified_dom);
+        my %thismachine;
+        map { $thismachine{$_} = 1; } &Apache::lonnet::current_machine_ids();
+        if (keys(%servers)) {
+            foreach my $server (keys(%servers)) {
+                next if ($thismachine{$server});
+                &Apache::lonnet::remote_devalidate_cache($server,['instcats:'.$modified_dom]);
+            }
+        }
+        $modified_dom = '';
+    }
+    return;
+}
+
 sub custom_formitems {
     my ($preprocess,$customhash) = @_;
     return unless ((ref($preprocess) eq 'HASH') && (ref($customhash) eq 'HASH'));  
@@ -4287,9 +4372,10 @@ sub pending_validation_form {
                         $buttontext = &mt('Create course');
                     }
                 }
+                my $hostname = &Apache::lonnet::hostname($lonhost);
                 my $protocol = $Apache::lonnet::protocol{$lonhost};
                 $protocol = 'http' if ($protocol ne 'https');
-                my $crscreator = $protocol.'://'.&Apache::lonnet::hostname($lonhost).'/cgi-bin/createpending.pl';
+                my $crscreator = $protocol.'://'.$hostname.'/cgi-bin/createpending.pl';
                 $output .= '<input type="hidden" name="crscreator" value="'.$crscreator.'" />'."\n".
                            '<input type="hidden" name="token" value="'.$token.'" />'."\n".
                            '<input type="submit" name="validate" value="'.$buttontext.'" />'."\n".
@@ -4516,9 +4602,11 @@ sub generate_date_items {
 }
 
 sub print_textbook_form {
-    my ($r,$dom,$incdoms,$domdefs,$settings,$can_request) = @_;
+    my ($r,$dom,$incdoms,$domdefs,$settings,$can_request,$crstype,$formhash) = @_;
     my (%prefab,%ordered,%numprefab);
-    my $crstype = 'textbook';
+    if ($crstype eq '') {
+        $crstype = 'textbook';
+    }
 #
 #  Retrieve list of prefabricated courses (textbook courses and templates) cloneable by user
 #
@@ -4578,7 +4666,7 @@ sub print_textbook_form {
                                                owner => $courseinfo{'internal.courseowner'},
                                                releaserequired => $courseinfo{'internal.releaserequired'},
                                                type  => $courseinfo{'type'},
-                                           };
+                                          };
         }
     }
 
@@ -4635,31 +4723,37 @@ sub print_textbook_form {
 
     my $jscript = &textbook_request_javascript(\%numprefab,$numcurrent,$numdomcourses,$customvalidationjs);
     $jscript .= $customjs;
-    my %loaditems;
+    my (%loaditems,$args);
     $loaditems{'onload'} = 'javascript:uncheckAllRadio();'.$customonload;
-    $r->print(&header('Course Request',$jscript,\%loaditems));
+    if ($crstype eq 'lti') {
+       $args = { 'only_body' => 1};
+    }
+    $r->print(&header('Course Request',$jscript,\%loaditems,undef,$args));
 
     if (ref($can_request) eq 'HASH') {
-        unless ((scalar(keys(%{$can_request})) == 1) && ($can_request->{'textbook'})) {
+        unless (((scalar(keys(%{$can_request})) == 1) && ($can_request->{'textbook'})) ||
+                ($crstype eq 'lti')) {
             &Apache::lonhtmlcommon::add_breadcrumb(
                 { href => '/adm/requestcourse',
                   text => 'Pick action',
                 });
         }
     }
-    &Apache::lonhtmlcommon::add_breadcrumb({text=>'Course Request'});
-    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Requests','Course_Requests'));
+    unless ($crstype eq 'lti') {
+        &Apache::lonhtmlcommon::add_breadcrumb({text=>'Course Request'});
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Requests','Course_Requests'));
 
-    &startContentScreen($r,'textbookrequests');
+        &startContentScreen($r,'textbookrequests');
 #
 # Show domain selector form, if required.
 #
-    if (@{$incdoms} > 1) {
-        my $onchange = 'this.form.submit()';
-        $r->print('<form name="domforcourse" method="post" action="/adm/requestcourse">'.
-                  '<div><fieldset><legend>'.&mt('Domain').'</legend>'.
-                  &Apache::loncommon::select_dom_form($dom,'showdom','',1,$onchange,$incdoms).
-                  '</fieldset></form>');
+        if (@{$incdoms} > 1) {
+            my $onchange = 'this.form.submit()';
+            $r->print('<form name="domforcourse" method="post" action="/adm/requestcourse">'.
+                      '<div><fieldset><legend>'.&mt('Domain').'</legend>'.
+                      &Apache::loncommon::select_dom_form($dom,'showdom','',1,$onchange,$incdoms).
+                      '</fieldset></form>');
+        }
     }
 
 #
@@ -4839,15 +4933,24 @@ sub print_textbook_form {
 #
 # Submit button
 #
-    $r->print('<input type="hidden" name="crstype" value="textbook" />'.
+    $r->print('<input type="hidden" name="crstype" value="'.$crstype.'" />'.
               '<input type="hidden" name="action" value="process" />'.
               '<input type="submit" value="'.&mt('Create course').'" />');
 
 #
 # End request form
 #
+
+    if (($crstype eq 'lti') && (ref($formhash) eq 'HASH')) {
+        foreach my $item (keys(%{$formhash})) {
+            $r->print('<input type="hidden" name="'.$item.'" value="'.$formhash->{$item}.'" />'."\n");
+        }
+    }
+
     $r->print('</form>');
-    &endContentScreen($r).
+    unless ($crstype eq 'lti') {
+        &endContentScreen($r);
+    }
     $r->print(&Apache::loncommon::end_page());
     return;
 }
@@ -4934,9 +5037,11 @@ sub clone_selection_table {
 }
 
 sub process_textbook_request {
-    my ($r,$dom,$action,$domdefs,$domconfig,$can_request) = @_;
+    my ($r,$dom,$action,$domdefs,$domconfig,$can_request,$crstype) = @_;
     my ($uniquecode,$req_notifylist);
-    my $crstype = 'textbook';
+    if ($crstype eq '') {
+        $crstype = 'textbook';
+    }
     if (ref($domconfig) eq 'HASH') {
         if (ref($domconfig->{'requestcourses'}) eq 'HASH') {
             if (ref($domconfig->{'requestcourses'}{'notify'}) eq 'HASH') {
@@ -4978,27 +5083,33 @@ sub process_textbook_request {
         }
     }
     my $js = &processing_javascript();
-    my $loaditems = { 
-                      onload => 'javascript:hideProcessing();',
-                    };
-    $r->print(&header('Course Creation',$js,$loaditems));
-
-    if (ref($can_request) eq 'HASH') {
-        unless ((scalar(keys(%{$can_request})) == 1) && ($can_request->{'textbook'})) {
-            &Apache::lonhtmlcommon::add_breadcrumb(
-                { href => '/adm/requestcourse',
-                  text => 'Pick action',
-                });
+    my ($loaditems,$args);
+    $loaditems = {
+                   onload => 'javascript:hideProcessing();',
+                 };
+    if ($crstype eq 'lti') {
+       $args = { 'only_body' => 1};
+    }
+    $r->print(&header('Course Creation',$js,$loaditems,undef,$args));
+
+    unless ($crstype eq 'lti') {
+        if (ref($can_request) eq 'HASH') {
+            unless ((scalar(keys(%{$can_request})) == 1) && ($can_request->{'textbook'})) {
+                &Apache::lonhtmlcommon::add_breadcrumb(
+                    { href => '/adm/requestcourse',
+                      text => 'Pick action',
+                    });
+            }
         }
+        &Apache::lonhtmlcommon::add_breadcrumb(
+                                               { href => '/adm/requestcourse',
+                                                 text => "Create Course",
+                                               }
+                                              );
+        &Apache::lonhtmlcommon::add_breadcrumb({text=>'Request Processed'});
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Requests','Course_Requests'));
+        &startContentScreen($r,'textbookrequests');
     }
-    &Apache::lonhtmlcommon::add_breadcrumb(
-                                           { href => '/adm/requestcourse',
-                                             text => "Create Course",
-                                           }
-                                          );
-    &Apache::lonhtmlcommon::add_breadcrumb({text=>'Request Processed'});
-    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Requests','Course_Requests'));
-    &startContentScreen($r,'textbookrequests');
 
     my $details = {
                     owner          => $env{'user.name'},
@@ -5030,6 +5141,9 @@ sub process_textbook_request {
             } else {
                 $details->{dateshift} = '';
             }
+        } elsif (($reqtype eq 'textbook') || ($reqtype eq 'template')) {
+            $details->{datemode} = 'delete';
+            $details->{dateshift} = '';
         }
         if ($details->{dateshift} ne '') {
             $details->{dateshift} =~ s/[^\d\.]+//g;
@@ -5043,7 +5157,12 @@ sub process_textbook_request {
     my ($result,$output,$customized) = &process_request($r,$lonhost,$dom,$cnum,$crstype,$now,$details,
                                                         '',$req_notifylist,[],$domconfig);
     $r->print($output);
-    if (&Apache::loncoursequeueadmin::author_prompt()) {
+    if ($crstype eq 'lti') {
+        my %consumers = &Apache::lonnet::get_dom('lticonsumers',[$env{'form.sourcecrs'}],$dom);
+        if (($env{'form.lti.sourcecrs'} ne '')  && ($consumers{$env{'form.lti.sourcecrs'}} eq '') && ($cnum ne '')) {
+            &Apache::lonnet::put_dom('lticonsumers',{ $env{'form.lti.sourcecrs'} => $cnum },$dom);
+        }
+    } elsif (&Apache::loncoursequeueadmin::author_prompt()) {
         unless ($customized) {
             &print_author_prompt($r,$action,$cnum,$dom,$crstype,$result);
         }
@@ -5052,7 +5171,9 @@ sub process_textbook_request {
             $r->print('<p><a href="/adm/requestcourse">'.&mt('Create another course').'</a></p>');
         }
     }
-    &endContentScreen($r);
+    unless ($crstype eq 'lti') {
+        &endContentScreen($r);
+    }
     $r->print(&Apache::loncommon::end_page());
 }