--- loncom/interface/loncommon.pm	2012/03/24 23:35:25	1.1061
+++ loncom/interface/loncommon.pm	2012/03/31 23:10:39	1.1062
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1061 2012/03/24 23:35:25 raeburn Exp $
+# $Id: loncommon.pm,v 1.1062 2012/03/31 23:10:39 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -4076,7 +4076,7 @@ sub findallcourses {
 ###############################################
 
 sub blockcheck {
-    my ($setters,$activity,$uname,$udom) = @_;
+    my ($setters,$activity,$uname,$udom,$url) = @_;
 
     if (!defined($udom)) {
         $udom = $env{'user.domain'};
@@ -4088,13 +4088,14 @@ sub blockcheck {
     # If uname and udom are for a course, check for blocks in the course.
 
     if (&Apache::lonnet::is_course($udom,$uname)) {
-        my %records = &Apache::lonnet::dump('comm_block',$udom,$uname);
-        my ($startblock,$endblock)=&get_blocks($setters,$activity,$udom,$uname);
-        return ($startblock,$endblock);
+        my ($startblock,$endblock,$triggerblock) = 
+            &get_blocks($setters,$activity,$udom,$uname,$url);
+        return ($startblock,$endblock,$triggerblock);
     }
 
     my $startblock = 0;
     my $endblock = 0;
+    my $triggerblock = '';
     my %live_courses = &findallcourses(undef,$uname,$udom);
 
     # If uname is for a user, and activity is course-specific, i.e.,
@@ -4209,46 +4210,139 @@ sub blockcheck {
         # Retrieve blocking times and identity of locker for course
         # of specified user, unless user has 'evb' privilege.
         
-        my ($start,$end)=&get_blocks($setters,$activity,$cdom,$cnum);
+        my ($start,$end,$trigger) = 
+            &get_blocks($setters,$activity,$cdom,$cnum,$url);
         if (($start != 0) && 
             (($startblock == 0) || ($startblock > $start))) {
             $startblock = $start;
+            if ($trigger ne '') {
+                $triggerblock = $trigger;
+            }
         }
         if (($end != 0)  &&
             (($endblock == 0) || ($endblock < $end))) {
             $endblock = $end;
+            if ($trigger ne '') {
+                $triggerblock = $trigger;
+            }
         }
     }
-    return ($startblock,$endblock);
+    return ($startblock,$endblock,$triggerblock);
 }
 
 sub get_blocks {
-    my ($setters,$activity,$cdom,$cnum) = @_;
+    my ($setters,$activity,$cdom,$cnum,$url) = @_;
     my $startblock = 0;
     my $endblock = 0;
+    my $triggerblock = '';
     my $course = $cdom.'_'.$cnum;
     $setters->{$course} = {};
     $setters->{$course}{'staff'} = [];
     $setters->{$course}{'times'} = [];
-    my %records = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
-    foreach my $record (keys(%records)) {
-        my ($start,$end) = ($record =~ m/^(\d+)____(\d+)$/);
-        if ($start <= time && $end >= time) {
-            my ($staff_name,$staff_dom,$title,$blocks) =
-                &parse_block_record($records{$record});
-            if ($blocks->{$activity} eq 'on') {
-                push(@{$$setters{$course}{'staff'}},[$staff_name,$staff_dom]);
-                push(@{$$setters{$course}{'times'}}, [$start,$end]);
-                if ( ($startblock == 0) || ($startblock > $start) ) {
-                    $startblock = $start;
+    $setters->{$course}{'triggers'} = [];
+    my (@blockers,%triggered);
+    my $now = time;
+    my %commblocks = &Apache::lonnet::get_comm_blocks($cdom,$cnum);
+    if ($activity eq 'docs') {
+        @blockers = &Apache::lonnet::has_comm_blocking('bre',undef,$url,\%commblocks);
+        foreach my $block (@blockers) {
+            if ($block =~ /^firstaccess____(.+)$/) {
+                my $item = $1;
+                my $type = 'map';
+                my $timersymb = $item;
+                if ($item eq 'course') {
+                    $type = 'course';
+                } elsif ($item =~ /___\d+___/) {
+                    $type = 'resource';
+                } else {
+                    $timersymb = &Apache::lonnet::symbread($item);
+                }
+                my $start = $env{'course.'.$cdom.'_'.$cnum.'.firstaccess.'.$timersymb};
+                my $end = $start + $env{'course.'.$cdom.'_'.$cnum.'.timerinterval.'.$timersymb};
+                $triggered{$block} = {
+                                       start => $start,
+                                       end   => $end,
+                                       type  => $type,
+                                     };
+            }
+        }
+    } else {
+        foreach my $block (keys(%commblocks)) {
+            if ($block =~ m/^(\d+)____(\d+)$/) { 
+                my ($start,$end) = ($1,$2);
+                if ($start <= time && $end >= time) {
+                    if (ref($commblocks{$block}) eq 'HASH') {
+                        if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
+                            if ($commblocks{$block}{'blocks'}{$activity} eq 'on') {
+                                unless(grep(/^\Q$block\E$/,@blockers)) {
+                                    push(@blockers,$block);
+                                }
+                            }
+                        }
+                    }
+                }
+            } elsif ($block =~ /^firstaccess____(.+)$/) {
+                my $item = $1;
+                my $timersymb = $item; 
+                my $type = 'map';
+                if ($item eq 'course') {
+                    $type = 'course';
+                } elsif ($item =~ /___\d+___/) {
+                    $type = 'resource';
+                } else {
+                    $timersymb = &Apache::lonnet::symbread($item);
+                }
+                my $start = $env{'course.'.$cdom.'_'.$cnum.'.firstaccess.'.$timersymb};
+                my $end = $start + $env{'course.'.$cdom.'_'.$cnum.'.timerinterval.'.$timersymb}; 
+                if ($start && $end) {
+                    if (($start <= time) && ($end >= time)) {
+                        unless (grep(/^\Q$block\E$/,@blockers)) {
+                            push(@blockers,$block);
+                            $triggered{$block} = {
+                                                   start => $start,
+                                                   end   => $end,
+                                                   type  => $type,
+                                                 };
+                        }
+                    }
                 }
-                if ( ($endblock == 0) || ($endblock < $end) ) {
-                    $endblock = $end;
+            }
+        }
+    }
+    foreach my $blocker (@blockers) {
+        my ($staff_name,$staff_dom,$title,$blocks) =
+            &parse_block_record($commblocks{$blocker});
+        push(@{$$setters{$course}{'staff'}},[$staff_name,$staff_dom]);
+        my ($start,$end,$triggertype);
+        if ($blocker =~ m/^(\d+)____(\d+)$/) {
+            ($start,$end) = ($1,$2);
+        } elsif (ref($triggered{$blocker}) eq 'HASH') {
+            $start = $triggered{$blocker}{'start'};
+            $end = $triggered{$blocker}{'end'};
+            $triggertype = $triggered{$blocker}{'type'};
+        }
+        if ($start) {
+            push(@{$$setters{$course}{'times'}}, [$start,$end]);
+            if ($triggertype) {
+                push(@{$$setters{$course}{'triggers'}},$triggertype);
+            } else {
+                push(@{$$setters{$course}{'triggers'}},0);
+            }
+            if ( ($startblock == 0) || ($startblock > $start) ) {
+                $startblock = $start;
+                if ($triggertype) {
+                    $triggerblock = $blocker;
                 }
             }
+            if ( ($endblock == 0) || ($endblock < $end) ) {
+               $endblock = $end;
+               if ($triggertype) {
+                   $triggerblock = $blocker;
+               }
+            }
         }
     }
-    return ($startblock,$endblock);
+    return ($startblock,$endblock,$triggerblock);
 }
 
 sub parse_block_record {
@@ -4272,13 +4366,16 @@ sub parse_block_record {
 }
 
 sub blocking_status {
-    my ($activity,$uname,$udom) = @_;
+    my ($activity,$uname,$udom,$url) = @_;
     my %setters;
 
 # check for active blocking
-    my ($startblock,$endblock)=&blockcheck(\%setters,$activity,$uname,$udom);
-
-    my $blocked = $startblock && $endblock ? 1 : 0;
+    my ($startblock,$endblock,$triggerblock) = 
+        &blockcheck(\%setters,$activity,$uname,$udom,$url);
+    my $blocked = 0;
+    if ($startblock && $endblock) {
+        $blocked = 1;
+    }
 
 # caller just wants to know whether a block is active
     if (!wantarray) { return $blocked; }
@@ -4286,8 +4383,12 @@ sub blocking_status {
 # build a link to a popup window containing the details
     my $querystring  = "?activity=$activity";
 # $uname and $udom decide whose portfolio the user is trying to look at
-    $querystring .= "&amp;udom=$udom"      if $udom;
-    $querystring .= "&amp;uname=$uname"    if $uname;
+    if ($activity eq 'port') {
+        $querystring .= "&amp;udom=$udom"      if $udom;
+        $querystring .= "&amp;uname=$uname"    if $uname;
+    } elsif ($activity eq 'docs') {
+        $querystring .= '&amp;url='.&HTML::Entities::encode($url,'&"');
+    }
 
     my $output .= <<'END_MYBLOCK';
 function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
@@ -4302,7 +4403,10 @@ END_MYBLOCK
     $output = Apache::lonhtmlcommon::scripttag($output);
   
     my $popupUrl = "/adm/blockingstatus/$querystring";
-    my $text = mt('Communication Blocked');
+    my $text = &mt('Communication Blocked');
+    if ($activity eq 'docs') {
+        $text = &mt('Content Access Blocked');
+    }
 
     $output .= <<"END_BLOCK";
 <div class='LC_comblock'>
@@ -12622,7 +12726,7 @@ sub init_user_environment {
 
 # See if old ID present, if so, remove
 
-    my ($filename,$cookie,$userroles);
+    my ($filename,$cookie,$userroles,$firstaccenv,$timerintenv);
     my $now=time;
 
     if ($public) {
@@ -12660,7 +12764,8 @@ sub init_user_environment {
     
 # Initialize roles
 
-	$userroles=&Apache::lonnet::rolesinit($domain,$username,$authhost);
+	($userroles,$firstaccenv,$timerintenv) = 
+            &Apache::lonnet::rolesinit($domain,$username,$authhost);
     }
 # ------------------------------------ Check browser type and MathML capability
 
@@ -12735,12 +12840,18 @@ sub init_user_environment {
         }
 
 	$env{'user.environment'} = "$lonids/$cookie.id";
-	
+
 	if (tie(my %disk_env,'GDBM_File',"$lonids/$cookie.id",
 		 &GDBM_WRCREAT(),0640)) {
 	    &_add_to_env(\%disk_env,\%initial_env);
 	    &_add_to_env(\%disk_env,\%userenv,'environment.');
 	    &_add_to_env(\%disk_env,$userroles);
+            if (ref($firstaccenv) eq 'HASH') {
+                &_add_to_env(\%disk_env,$firstaccenv);
+            }
+            if (ref($timerintenv) eq 'HASH') {
+                &_add_to_env(\%disk_env,$timerintenv);
+            }
 	    if (ref($args->{'extra_env'})) {
 		&_add_to_env(\%disk_env,$args->{'extra_env'});
 	    }