--- loncom/interface/loncommon.pm	2008/09/11 14:47:21	1.683
+++ loncom/interface/loncommon.pm	2008/11/04 21:06:41	1.692
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.683 2008/09/11 14:47:21 bisitz Exp $
+# $Id: loncommon.pm,v 1.692 2008/11/04 21:06:41 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -61,6 +61,7 @@ use POSIX qw(strftime mktime);
 use Apache::lonmenu();
 use Apache::lonenc();
 use Apache::lonlocal;
+use Apache::lonnet();
 use HTML::Entities;
 use Apache::lonhtmlcommon();
 use Apache::loncoursedata();
@@ -68,6 +69,7 @@ use Apache::lontexconvert();
 use Apache::lonclonecourse();
 use LONCAPA qw(:DEFAULT :match);
 use DateTime::TimeZone;
+use DateTime::Locale::Catalog;
 
 # ---------------------------------------------- Designs
 use vars qw(%defaultdesign);
@@ -657,6 +659,57 @@ sub select_timezone {
    return $output;
 }
 
+sub select_datelocale {
+    my ($name,$selected,$onchange,$includeempty)=@_;
+    my $output='<select name="'.$name.'" '.$onchange.'>'."\n";
+    if ($includeempty) {
+        $output .= '<option value=""';
+        if ($selected eq '') {
+            $output .= ' selected="selected" ';
+        }
+        $output .= '> </option>';
+    }
+    my (@possibles,%locale_names);
+    my @locales = DateTime::Locale::Catalog::Locales;
+    foreach my $locale (@locales) {
+        if (ref($locale) eq 'HASH') {
+            my $id = $locale->{'id'};
+            if ($id ne '') {
+                my $en_terr = $locale->{'en_territory'};
+                my $native_terr = $locale->{'native_territory'};
+                my @languages = &preferred_languages();
+                if (grep(/^en$/,@languages) || !@languages) {
+                    if ($en_terr ne '') {
+                        $locale_names{$id} = '('.$en_terr.')';
+                    } elsif ($native_terr ne '') {
+                        $locale_names{$id} = $native_terr;
+                    }
+                } else {
+                    if ($native_terr ne '') {
+                        $locale_names{$id} = $native_terr.' ';
+                    } elsif ($en_terr ne '') {
+                        $locale_names{$id} = '('.$en_terr.')';
+                    }
+                }
+                push (@possibles,$id);
+            }
+        }
+    }
+    foreach my $item (sort(@possibles)) {
+        $output.= '<option value="'.$item.'"';
+        if ($item eq $selected) {
+            $output.=' selected="selected"';
+        }
+        $output.=">$item";
+        if ($locale_names{$item} ne '') {
+            $output.="  $locale_names{$item}</option>\n";
+        }
+        $output.="</option>\n";
+    }
+    $output.="</select>";
+    return $output;
+}
+
 =pod
 
 =item * &linked_select_forms(...)
@@ -873,7 +926,7 @@ sub help_open_topic {
     if ($text ne "") {
 	$template .= 
             "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
-            "<td bgcolor='#5555FF'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
+            "<td bgcolor='#5555FF'><span class=\"LC_nobreak\"><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
     }
 
     # Add the graphic
@@ -882,7 +935,7 @@ sub help_open_topic {
     $template .= <<"ENDTEMPLATE";
  <a target="_top" href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help: $topic)" /></a>
 ENDTEMPLATE
-    if ($text ne '') { $template.='</td></tr></table>' };
+    if ($text ne '') { $template.='</span></td></tr></table>' };
     return $template;
 
 }
@@ -2987,14 +3040,19 @@ sub preferred_languages {
             }
         }
     }
+    return &get_genlanguages(@languages);
+}
+
+sub get_genlanguages {
+    my (@languages) = @_;
 # turn "en-ca" into "en-ca,en"
     my @genlanguages;
     foreach my $lang (@languages) {
-	unless ($lang=~/\w/) { next; }
-	push(@genlanguages,$lang);
-	if ($lang=~/(\-|\_)/) {
-	    push(@genlanguages,(split(/(\-|\_)/,$lang))[0]);
-	}
+        unless ($lang=~/\w/) { next; }
+        push(@genlanguages,$lang);
+        if ($lang=~/(\-|\_)/) {
+            push(@genlanguages,(split(/(\-|\_)/,$lang))[0]);
+        }
     }
     #uniqueify the languages list
     my %count;
@@ -3348,16 +3406,21 @@ sub pprmlink {
 
 
 sub timehash {
-    my @ltime=localtime(shift);
-    return ( 'seconds' => $ltime[0],
-             'minutes' => $ltime[1],
-             'hours'   => $ltime[2],
-             'day'     => $ltime[3],
-             'month'   => $ltime[4]+1,
-             'year'    => $ltime[5]+1900,
-             'weekday' => $ltime[6],
-             'dayyear' => $ltime[7]+1,
-             'dlsav'   => $ltime[8] );
+    my ($thistime) = @_;
+    my $timezone = &Apache::lonlocal::gettimezone();
+    my $dt = DateTime->from_epoch(epoch => $thistime)
+                     ->set_time_zone($timezone);
+    my $wday = $dt->day_of_week();
+    if ($wday == 7) { $wday = 0; }
+    return ( 'second' => $dt->second(),
+             'minute' => $dt->minute(),
+             'hour'   => $dt->hour(),
+             'day'     => $dt->day_of_month(),
+             'month'   => $dt->month(),
+             'year'    => $dt->year(),
+             'weekday' => $wday,
+             'dayyear' => $dt->day_of_year(),
+             'dlsav'   => $dt->is_dst() );
 }
 
 sub utc_string {
@@ -3367,6 +3430,24 @@ sub utc_string {
 
 sub maketime {
     my %th=@_;
+    my ($epoch_time,$timezone,$dt);
+    $timezone = &Apache::lonlocal::gettimezone();
+    eval {
+        $dt = DateTime->new( year   => $th{'year'},
+                             month  => $th{'month'},
+                             day    => $th{'day'},
+                             hour   => $th{'hour'},
+                             minute => $th{'minute'},
+                             second => $th{'second'},
+                             time_zone => $timezone,
+                         );
+    };
+    if (!$@) {
+        $epoch_time = $dt->epoch;
+        if ($epoch_time) {
+            return $epoch_time;
+        }
+    }
     return POSIX::mktime(
         ($th{'seconds'},$th{'minutes'},$th{'hours'},
          $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
@@ -7626,7 +7707,7 @@ sub csv_print_select_table {
               &end_data_table_header_row()."\n");
     foreach my $array_ref (@$d) {
 	my ($value,$display,$defaultcol)=@{ $array_ref };
-	$r->print(&start_data_table_row().'<tr><td>'.$display.'</td>');
+	$r->print(&start_data_table_row().'<td>'.$display.'</td>');
 
 	$r->print('<td><select name=f'.$i.
 		  ' onchange="javascript:flip(this.form,'.$i.');">');
@@ -8323,8 +8404,10 @@ sub build_recipient_list {
     } elsif ($origmail ne '') {
         push(@recipients,$origmail);
     }
-    if ($defmail ne '') {
-        push(@recipients,$defmail);
+    if (defined($defmail)) {
+        if ($defmail ne '') {
+            push(@recipients,$defmail);
+        }
     }
     if ($otheremails) {
         my @others;
@@ -9188,10 +9271,10 @@ sub construct_course {
         $outcome .= ($fatal?$errtext:'read ok').' - ';
         my $title; my $url;
         if ($args->{'firstres'} eq 'syl') {
-	    $title='Syllabus';
+	    $title=&mt('Syllabus');
             $url='/public/'.$$crsudom.'/'.$$crsunum.'/syllabus';
         } else {
-            $title='Navigate Contents';
+            $title=&mt('Navigate Contents');
             $url='/adm/navmaps';
         }
 
@@ -9245,28 +9328,14 @@ sub icon {
     return &lonhttpdurl($iconname);
 } 
 
-sub lonhttpd_port {
-    my $lonhttpd_port=$Apache::lonnet::perlvar{'lonhttpdPort'};
-    if (!defined($lonhttpd_port)) { $lonhttpd_port='8080'; }
-    # IE doesn't like a secure page getting images from a non-secure
-    # port (when logging we haven't parsed the browser type so default
-    # back to secure
-    if ((!exists($env{'browser.type'}) || $env{'browser.type'} eq 'explorer')
-	&& $ENV{'SERVER_PORT'} == 443) {
-	return 443;
-    }
-    return $lonhttpd_port;
-
-}
-
 sub lonhttpdurl {
+#
+# Had been used for "small fry" static images on separate port 8080.
+# Modify here if lightweight http functionality desired again.
+# Currently eliminated due to increasing firewall issues.
+#
     my ($url)=@_;
-
-    my $lonhttpd_port = &lonhttpd_port();
-    if ($lonhttpd_port == 443) {
-	return 'https://'.$ENV{'SERVER_NAME'}.$url;
-    }
-    return 'http://'.$ENV{'SERVER_NAME'}.':'.$lonhttpd_port.$url;
+    return $url;
 }
 
 sub connection_aborted {
@@ -9344,7 +9413,7 @@ sub init_user_environment {
 	}
 # Give them a new cookie
 	my $id = ($args->{'robot'} ? 'robot'.$args->{'robot'}
-		                   : $now);
+		                   : $now.$$.int(rand(10000)));
 	$cookie="$username\_$id\_$domain\_$authhost";
     
 # Initialize roles
@@ -9467,6 +9536,44 @@ sub _add_to_env {
     }
 }
 
+# --- Get the symbolic name of a problem and the url
+sub get_symb {
+    my ($request,$silent) = @_;
+    (my $url=$env{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
+    my $symb=($env{'form.symb'} ne '' ? $env{'form.symb'} : (&Apache::lonnet::symbread($url)));
+    if ($symb eq '') {
+        if (!$silent) {
+            $request->print("Unable to handle ambiguous references:$url:.");
+            return ();
+        }
+    }
+    &Apache::lonenc::check_decrypt(\$symb);
+    return ($symb);
+}
+
+# --------------------------------------------------------------Get annotation
+
+sub get_annotation {
+    my ($symb,$enc) = @_;
+
+    my $key = $symb;
+    if (!$enc) {
+        $key =
+            &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($symb))[2]);
+    }
+    my %annotation=&Apache::lonnet::get('nohist_annotations',[$key]);
+    return $annotation{$key};
+}
+
+sub clean_symb {
+    my ($symb) = @_;
+
+    &Apache::lonenc::check_decrypt(\$symb);
+    my $enc = $env{'request.enc'};
+    delete($env{'request.enc'});
+
+    return ($symb,$enc);
+}
 
 =pod