--- loncom/homework/lonhomework.pm	2017/04/03 13:11:47	1.344.2.8
+++ loncom/homework/lonhomework.pm	2023/07/05 16:51:49	1.344.2.10.4.1
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Homework handler
 #
-# $Id: lonhomework.pm,v 1.344.2.8 2017/04/03 13:11:47 raeburn Exp $
+# $Id: lonhomework.pm,v 1.344.2.10.4.1 2023/07/05 16:51:49 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -235,6 +235,12 @@ sub check_slot_access {
 	    $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
 	    return ('SHOW_ANSWER');
 	}
+    } elsif (($type eq 'problem') &&
+             ($Apache::lonhomework::browse eq 'F') &&
+             ($ENV{'REMOTE_ADDR'} eq '127.0.0.1') &&
+             ($env{'form.grade_courseid'} eq $env{'request.course.id'}) &&
+             (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}))) {
+        return ($status,$datemsg);
     }
 
     my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent",$symb);
@@ -311,7 +317,7 @@ sub check_slot_access {
                         $earlyout = 1;
                     }
                 }
-                if (($currtries == $maxtries) || ($is_correct)) {
+                if ($currtries == $maxtries) {
                     $earlyout = 1;
                 } else {
                     $numgraded ++;
@@ -1194,7 +1200,7 @@ sub editxmlmode {
 #    Render the page in whatever target desired.
 #
 sub renderpage {
-    my ($request,$file,$targets,$return_string) = @_;
+    my ($request,$file,$targets,$return_string,$donebuttonmsg) = @_;
 
     my @targets = @{$targets || [&get_target()]};
     &Apache::lonhomework::showhashsubset(\%env,'form.');
@@ -1245,6 +1251,11 @@ sub renderpage {
 	    if ($target eq 'analyze') {
 		$result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
 		undef(%Apache::lonhomework::analyze);
+            } elsif ($target eq 'web') {
+                if ($donebuttonmsg) {
+                    $result =~ s{</body>}{};
+                    $result.= &Apache::loncommon::confirmwrapper(&Apache::lonhtmlcommon::confirm_success($donebuttonmsg,1))."\n</body>";
+                }
 	    }
 	    #my $td=&tv_interval($t0);
 	    #if ( $Apache::lonxml::debug) {
@@ -1460,6 +1471,70 @@ sub update_construct_style {
     }
 }
 
+#
+# Sets interval for current user so time left will be zero, either for the entire folder
+# containing the current resource, or just the resource, depending on value of first item
+# in interval array retrieved from EXT("resource.0.interval");
+#
+sub zero_timer {
+    my ($symb) = @_;
+    my ($hastimeleft,$first_access,$now);
+    my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
+    if (@interval > 1) {
+        if ($interval[1] eq 'course') {
+            return ('fail',&mt('Ending of timed events not supported for intervals set course-wide'));
+        } else {
+            my $now = time;
+            my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
+            if ($first_access > 0) {
+                my ($timelimit,$donesuffix) = split(/_/,$interval[0],2);
+                if ($donesuffix =~ /^done(?:|\:[^\:]+\:)(.*)$/) {
+                    my ($dummy,$proctor,$secret) = split(/_/,$1);
+                    if (($proctor) && ($secret ne '')) {
+                        my $key = $env{'form.LC_interval_done_proctorpass'};
+                        $key =~ s/^\s+//;
+                        $key =~ s/\s+$//;
+                        if ($env{'form.LC_interval_done_proctorpass'} ne $secret) {
+                            return ('fail',
+                                   &mt('Incorrect key entered by proctor'));
+                        }
+                    }
+                    if ($first_access+$timelimit > $now) {
+                        my $done_time = $now - $first_access;
+                        my $snum = 1;
+                        if ($interval[1] eq 'map') {
+                            $snum = 2;
+                        }
+                        my $result =
+                            &Apache::lonparmset::storeparm_by_symb_inner($symb,'0_interval',
+                                                                         $snum,$done_time,
+                                                                         'date_interval',
+                                                                         $env{'user.name'},
+                                                                         $env{'user.domain'});
+                        if ($result eq '') {
+                            # Record action in "User Notes"
+                            &Apache::lonmsg::store_instructor_comment(
+                                'Pressed Done button for symb:<br />'.$symb,
+                                $env{'user.name'}, $env{'user.domain'});
+                            return ('ok');
+                        } else {
+                            return ('fail',&mt('Error ending timed event: [_1]',$result));
+                        }
+                    } else {
+                        return ('fail',&mt('Timed event already ended'));
+                    }
+                } else {
+                    return ('fail',&mt('Timed event can not be ended before the time limit'));
+                }
+            } else {
+                return ('fail',&mt('Timer not yet started for this timed event'));
+            }
+        }
+    } else {
+        return ('fail',&mt('No timer in use'));
+    }
+    return();
+}
 
 sub handler {
     #my $t0 = [&gettimeofday()];
@@ -1516,9 +1591,17 @@ sub handler {
 	    &newproblem($request);
 	}
     } else {
+        # Set the event timer to zero if the "done button" was clicked.  The button is
+        # part of the doneButton form created in lonmenu.pm
+        my ($donebuttonresult,$donemsg);
+        if ($symb && $env{'form.LC_interval_done'} eq 'true') {
+            ($donebuttonresult,$donemsg) = &zero_timer($symb);
+            undef($env{'form.LC_interval_done'});
+            undef($env{'form.LC_interval_done_proctorpass'});
+        }
 	# just render the page normally outside of construction space
 	&Apache::lonxml::debug("not construct");
-	&renderpage($request,$file);
+	&renderpage($request,$file,undef,undef,$donemsg);
     }
     #my $td=&tv_interval($t0);
     #&Apache::lonxml::debug("Spent $td seconds processing");
@@ -1665,7 +1748,7 @@ sub helpmenu_datastructure {
 
     # filename, title, width, height
     my $helpers = [
-                    ['Problem_LON-CAPA_Function.hlp', &mt('Script Functions'), 800, 600],
+                    ['Problem_LON-CAPA_Functions.hlp', &mt('Script Functions'), 800, 600],
                     ['Greek_Symbols.hlp', &mt('Greek Symbols'), 500, 600],
                     ['Other_Symbols.hlp', &mt('Other Symbols'), 500, 600],
                     ['Authoring_Output_Tags.hlp', &mt('Output Tags'), 800, 600],