--- loncom/interface/lonsearchcourse.pm	2020/09/22 11:23:08	1.5
+++ loncom/interface/lonsearchcourse.pm	2024/02/12 03:39:38	1.13
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Search Course
 #
-# $Id: lonsearchcourse.pm,v 1.5 2020/09/22 11:23:08 raeburn Exp $
+# $Id: lonsearchcourse.pm,v 1.13 2024/02/12 03:39:38 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -123,6 +123,11 @@ sub course_search {
     my $discuss=$env{'form.crsdiscuss'};
     my @allwords=($search_string,@New_Words);
     $totalfound=0;
+    my $target = 'cat';
+    if ((($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) ||
+        (($env{'request.deeplink.login'}) && ($env{'request.deeplink.target'} eq '_self'))) {
+        $target = '_self';
+    }
 
     $r->print(
               '<hr /><center><font size="+2" face="arial">'.
@@ -133,15 +138,22 @@ sub course_search {
     my $c=$r->connection;
     if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.".db",
             &GDBM_READER(),0640)) {
-        foreach (sort(keys(%hash))) {
-            if ($c->aborted()) { last; }
-            if (($_=~/^src\_(.+)$/)) {
-                if ($hash{'randomout_'.$1} & !$env{'request.role.adv'}) {
-                    next;
+        foreach my $key (sort(keys(%hash))) {
+            last if ($c->aborted());
+            if ($key =~ /^src\_(.+)$/) {
+                my $rid = $1;
+                unless ($env{'request.role.adv'}) {
+                    next if ($hash{'randomout_'.$rid} || $hash{'deeplinkout_'.$rid});
+                    if (!$env{'request.deeplink.login'} && $hash{'deeplinkonly_'.$rid}) {
+                        my ($value) = map { &unescape($_); } split(/:/,$hash{'deeplinkonly_'.$rid});
+                        my ($state,$others,$listed) = split(/,/,$value);
+                        next if (($state eq 'only') &&
+                                 (($listed eq 'absent') || ($listed eq 'grades')));
+                    }
                 }
                 my $symb=&make_symb($1);
-                &checkonthis($r,$1,$hash{$_},0,&Apache::lonnet::gettitle($symb),
-                             $fulltext,$symb,@allwords);
+                &checkonthis($r,$1,$hash{$key},0,&Apache::lonnet::gettitle($symb),
+                             $fulltext,$symb,$target,@allwords);
             }
         }
         untie(%hash);
@@ -213,7 +225,7 @@ sub course_search {
                     }
                     $url .= &escape($resource->symb());
                     my $title = $resource->compTitle();
-                    $r->print('<br /><a href="'.$url.'" target="cat">'.
+                    $r->print('<br /><a href="'.$url.'" target="'.$target.'">'.
                          ($title?$title:$url).'</a>&nbsp;&nbsp;-&nbsp;'.
                          $disctype.'<br />');
                     $totaldiscussions++;
@@ -233,7 +245,7 @@ sub course_search {
 # =============================== This pulls up a resource and its dependencies
 
 sub checkonthis {
-    my ($r,$id,$url,$level,$title,$fulltext,$symb,@allwords)=@_;
+    my ($r,$id,$url,$level,$title,$fulltext,$symb,$target,@allwords)=@_;
     $alreadyseen{$id}=1;
     if (&Apache::loncommon::connection_aborted($r)) { return; }
     $r->rflush();
@@ -261,12 +273,20 @@ sub checkonthis {
        }
        my $href=$url;
        if ($hash{'encrypted_'.$id} && !$env{'request.role.adv'}) {
-           $href=&Apache::lonenc::encrypted($href)
-               .'?symb='.&Apache::lonenc::encrypted($symb);
+           $href=&Apache::lonenc::encrypted($href);
+           if ($url =~ /\.sequence$/) {
+               $href .= '?navmap=1';
+           } else {
+               $href .= '?symb='.&Apache::lonenc::encrypted($symb);
+           }
        } else {
-           $href.='?symb='.&escape($symb);
+           if ($href =~ /\.sequence$/) {
+               $href .= '?navmap=1';
+           } else {
+               $href .= '?symb='.&escape($symb);
+           }
        }
-       $r->print('<a href="'.$href.'" target="cat">'.($title?$title:$url).
+       $r->print('<a href="'.$href.'" target="'.$target.'">'.($title?$title:$url).
                  '</a><br />');
        $totalfound++;
     } elsif ($fulltext) {
@@ -276,18 +296,18 @@ sub checkonthis {
 # Check also the dependencies of this one
     my $dependencies=
                 &Apache::lonnet::metadata($url,'dependencies');
-    foreach (split(/\,/,$dependencies)) {
-       if (($_=~/^\/res\//) && (!$alreadyseen{$id})) {
-          &checkonthis($r,$id,$_,$level+1,'',$fulltext,undef,@allwords);
+    foreach my $item (split(/\,/,$dependencies)) {
+       if (($item =~ /^\/res\//) && (!$alreadyseen{$id})) {
+          &checkonthis($r,$id,$item,$level+1,'',$fulltext,undef,$target,@allwords);
        }
     }
 }
 
 sub checkwords {
     my ($result,$applies,@allwords) = @_;
-    foreach (@allwords) {
-        if ($_=~/\w/) {
-            if ($result=~/$_/si) {
+    foreach my $word (@allwords) {
+        if ($word =~ /\w/) {
+            if ($result =~ /$word/si) {
                 $applies++;
             }
         }
@@ -329,10 +349,27 @@ sub handler {
     }
     $r->print(&Apache::lonhtmlcommon::breadcrumbs("$crstype Search"));
     &Apache::lonnavdisplay::startContentScreen($r,'coursesearch');
-    if ($env{'form.phase'} eq 'results') {
-       &course_search($r);
+    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+    my $clientip = &Apache::lonnet::get_requestor_ip($r);
+    my ($blocked,$blocktext) =
+        &Apache::loncommon::blocking_status('search',$clientip,$cnum,$cdom);
+    if ($blocked) {
+        my $checkrole = "cm./$cdom/$cnum";
+        if ($env{'request.course.sec'} ne '') {
+            $checkrole .= "/$env{'request.course.sec'}";
+        }
+        if ((&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) &&
+            ($env{'request.role'} !~ m{^st\./$cdom/$cnum})) {
+            undef($blocked);
+        }
+    }
+    if ($blocked) {
+        $r->print($blocktext);
+    } elsif ($env{'form.phase'} eq 'results') {
+        &course_search($r);
     } else {
-       $r->print(&menu());
+        $r->print(&menu());
     }
     &Apache::lonnavdisplay::endContentScreen($r);
     $r->print(&Apache::loncommon::end_page());