--- loncom/interface/loncommon.pm	2002/08/22 21:02:49	1.57
+++ loncom/interface/loncommon.pm	2002/10/18 13:49:49	1.70
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.57 2002/08/22 21:02:49 albertel Exp $
+# $Id: loncommon.pm,v 1.70 2002/10/18 13:49:49 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -98,6 +98,10 @@ my %cprtag;
 my %fe; my %fd;
 my %category_extensions;
 
+# ---------------------------------------------- Designs
+
+my %designhash;
+
 # ---------------------------------------------- Thesaurus variables
 
 =pod
@@ -166,6 +170,30 @@ BEGIN {
 	    }
 	}
     }
+
+# -------------------------------------------------------------- domain designs
+
+    my $filename;
+    my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
+    opendir(DIR,$designdir);
+    while ($filename=readdir(DIR)) {
+	my ($domain)=($filename=~/^(\w+)\./);
+    {
+	my $fh=Apache::File->new($designdir.'/'.$filename);
+	if ($fh) {
+	    while (<$fh>) {
+		next if /^\#/;
+		chomp;
+		my ($key,$val)=(split(/\=/,$_));
+		if ($val) { $designhash{$domain.'.'.$key}=$val; }
+	    }
+	}
+    }
+
+    }
+    closedir(DIR);
+
+
 # ------------------------------------------------------------- file categories
     {
 	my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
@@ -755,6 +783,8 @@ sub authform_kerberos{
 Kerberos authenticated with domain
 <input type="text" size="10" name="krbarg" value=""
        onchange="javascript:changed_text('krb',$in{'formname'});" />
+<input type="radio" name="krbver" value="4" checked="on" />Version 4
+<input type="radio" name="krbver" value="5" />Version 5
 END
     return $result;
 }
@@ -930,6 +960,71 @@ sub get_related_words {
 ##              End Thesaurus Functions                      ##
 ###############################################################
 
+# -------------------------------------------------------------- Plaintext name
+
+sub plainname {
+    my ($uname,$udom)=@_;
+    my %names=&Apache::lonnet::get('environment',
+                    ['firstname','middlename','lastname','generation'],
+					 $udom,$uname);
+    my $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
+	$names{'lastname'}.' '.$names{'generation'};
+    $name=~s/\s+$//;
+    $name=~s/\s+/ /g;
+    return $name;
+}
+
+# -------------------------------------------------------------------- Nickname
+
+
+sub nickname {
+    my ($uname,$udom)=@_;
+    my %names=&Apache::lonnet::get('environment',
+  ['nickname','firstname','middlename','lastname','generation'],$udom,$uname);
+    my $name=$names{'nickname'};
+    if ($name) {
+       $name='&quot;'.$name.'&quot;'; 
+    } else {
+       $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
+	     $names{'lastname'}.' '.$names{'generation'};
+       $name=~s/\s+$//;
+       $name=~s/\s+/ /g;
+    }
+    return $name;
+}
+
+
+# ------------------------------------------------------------------ Screenname
+
+sub screenname {
+    my ($uname,$udom)=@_;
+    my %names=
+ &Apache::lonnet::get('environment',['screenname'],$udom,$uname);
+    return $names{'screenname'};
+}
+
+# ------------------------------------------------------------- Message Wrapper
+
+sub messagewrapper {
+    my ($link,$un,$do)=@_;
+    return 
+"<a href='/adm/email?compose=individual&recname=$un&recdom=$do'>$link</a>";
+}
+# ------------------------------------------------------------- Aboutme Wrapper
+
+sub aboutmewrapper {
+    my ($link,$username,$domain)=@_;
+    return "<a href='/adm/$domain/$username/aboutme'>$link</a>";
+}
+
+# ------------------------------------------------------------ Syllabus Wrapper
+
+
+sub syllabuswrapper {
+    my ($link,$un,$do)=@_;
+    return "<a href='/public/$do/$un/syllabus'>$link</a>";
+}
+
 # ---------------------------------------------------------------- Language IDs
 sub languageids {
     return sort(keys(%language));
@@ -1059,7 +1154,7 @@ sub get_previous_attempt {
 }
 
 sub get_student_view {
-  my ($symb,$username,$domain,$courseid) = @_;
+  my ($symb,$username,$domain,$courseid,$target) = @_;
   my ($map,$id,$feedurl) = split(/___/,$symb);
   my (%old,%moreenv);
   my @elements=('symb','courseid','domain','username');
@@ -1067,6 +1162,7 @@ sub get_student_view {
     $old{$element}=$ENV{'form.grade_'.$element};
     $moreenv{'form.grade_'.$element}=eval '$'.$element #'
   }
+  if ($target eq 'tex') {$moreenv{'form.grade_target'} = 'tex';}
   &Apache::lonnet::appenv(%moreenv);
   my $userview=&Apache::lonnet::ssi('/res/'.$feedurl);
   &Apache::lonnet::delenv('form.grade_');
@@ -1126,6 +1222,22 @@ sub maketime {
 }
 
 
+#########################################
+#
+# Retro-fixing of un-backward-compatible time format
+
+sub unsqltime {
+    my $timestamp=shift;
+    if ($timestamp=~/^(\d+)\-(\d+)\-(\d+)\s+(\d+)\:(\d+)\:(\d+)$/) {
+       $timestamp=&maketime(
+	   'year'=>$1,'month'=>$2,'day'=>$3,
+           'hours'=>$4,'minutes'=>$5,'seconds'=>$6);
+    }
+    return $timestamp;
+}
+
+#########################################
+
 sub findallcourses {
     my %courses=();
     my $now=time;
@@ -1146,9 +1258,106 @@ sub findallcourses {
 }
 
 ###############################################
+###############################################
+
+=pod
+
+=item &determinedomain()
+
+Inputs: $domain (usually will be undef)
+
+Returns: Determines which domain should be used for designs
+
+=cut
+
+###############################################
+sub determinedomain {
+    my $domain=shift;
+   if (! $domain) {
+        # Determine domain if we have not been given one
+        $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
+        if ($ENV{'user.domain'}) { $domain=$ENV{'user.domain'}; }
+        if ($ENV{'request.role.domain'}) { 
+            $domain=$ENV{'request.role.domain'}; 
+        }
+    }
+    return $domain;
+}
+###############################################
+=pod
+
+=item &domainlogo()
+
+Inputs: $domain (usually will be undef)
+
+Returns: A link to a domain logo, if the domain logo exists.
+If the domain logo does not exist, a description of the domain.
+
+=cut
+###############################################
+sub domainlogo {
+    my $domain = &determinedomain(shift);    
+     # See if there is a logo
+    if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
+        return '<img src="/adm/lonDomLogos/'.$domain.'.gif" />';
+    } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
+        return $Apache::lonnet::domaindescription{$domain};
+    } else {
+        return '';
+    }
+}
+##############################################
+
+=pod
+
+=item &designparm()
+
+Inputs: $which parameter; $domain (usually will be undef)
+
+Returns: value of designparamter $which
+
+=cut
+##############################################
+sub designparm {
+    my ($which,$domain)=@_;
+    $domain=&determinedomain($domain);
+    if ($designhash{$domain.'.'.$which}) {
+	return $designhash{$domain.'.'.$which};
+    } else {
+        return $designhash{'default.'.$which};
+    }
+}
+
+###############################################
+###############################################
+
+=pod
+
+=item &bodytag()
+
+Returns a uniform header for LON-CAPA web pages.
+
+Inputs: 
+
+ $title, A title to be displayed on the page.
+ $function, the current role (can be undef).
+ $addentries, extra parameters for the <body> tag.
+ $bodyonly, if defined, only return the <body> tag.
+ $domain, if defined, force a given domain.
+
+Returns: A uniform header for LON-CAPA web pages.  
+If $bodyonly is nonzero, a string containing a <body> tag will be returned.
+If $bodyonly is undef or zero, an html string containing a <body> tag and 
+other decorations will be returned.
+
+=cut
+
+###############################################
+
 
+###############################################
 sub bodytag {
-    my ($title,$function,$addentries)=@_;
+    my ($title,$function,$addentries,$bodyonly,$domain)=@_;
     unless ($function) {
 	$function='student';
         if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
@@ -1162,43 +1371,16 @@ sub bodytag {
             $function='author';
         }
     }
-    my $img='';
-    my $pgbg='';
-    my $tabbg='';
-    my $font='';
-    my $link='';
-    my $alink='#CC0000';
-    my $vlink='';
-    if ($function eq 'admin') {
-        $img='admin';
-        $pgbg='#FFFFCC';
-        $tabbg='#CCCC99';
-        $font='#772200';
-        $link='#663300';
-        $vlink='#666600';
-    } elsif ($function eq 'coordinator') {
-        $img='coordinator';
-        $pgbg='#CCFFFF';
-        $tabbg='#CCCCFF';
-        $font='#000044';
-        $link='#003333';
-        $vlink='#006633';
-   } elsif ($function eq 'author') {
-        $img='author';
-        $pgbg='#CCFFFF';
-        $tabbg='#CCFFCC';
-        $font='#004400';
-        $link='#003333';
-        $vlink='#006666';
-    } else {
-        $img='student';
-        $pgbg='#FFFFAA';
-        $tabbg='#FF9900';
-        $font='#991100';
-        $link='#993300';
-        $vlink='#996600';
-    }
-# role and realm
+    my $img=&designparm($function.'.img',$domain);
+    my $pgbg=&designparm($function.'.pgbg',$domain);
+    my $tabbg=&designparm($function.'.tabbg',$domain);
+    my $font=&designparm($function.'.font',$domain);
+    my $link=&designparm($function.'.link',$domain);
+    my $alink=&designparm($function.'.alink',$domain);
+    my $vlink=&designparm($function.'.vlink',$domain);
+    my $sidebg=&designparm($function.'.sidebg',$domain);
+
+ # role and realm
     my ($role,$realm)
        =&Apache::lonnet::plaintext((split(/\./,$ENV{'request.role'}))[0]);
 # realm
@@ -1208,15 +1390,21 @@ sub bodytag {
     }
     unless ($realm) { $realm='&nbsp;'; }
 # Set messages
-    my $messages=localtime();
+    my $messages=&domainlogo($domain);
 # Output
-    return(<<ENDBODY);
+    my $bodytag = <<END;
 <body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link"
 $addentries>
+END
+    if ($bodyonly) {
+        return $bodytag;
+    } else {
+        return(<<ENDBODY);
+$bodytag
 <table width="100%" cellspacing="0" border="0" cellpadding="0">
 <tr><td bgcolor="$font">
-<img src="/adm/lonInterFace/$img.jpg" /></td>
-<td bgcolor="$font"><font color='$pgbg'>$messages</font></td>
+<img src="$img" /></td>
+<td bgcolor="$font"><font color='$sidebg'>$messages</font></td>
 </tr>
 <tr>
 <td rowspan="3" bgcolor="$tabbg">
@@ -1237,6 +1425,7 @@ $addentries>
 <td bgcolor="$tabbg" align="right"><font size="2">$realm</font>&nbsp;</td></tr>
 </table><br>
 ENDBODY
+    }
 }
 ###############################################
 
@@ -1628,7 +1817,7 @@ will result in $ENV{'form.uname'} and $E
 
 returns cache-controlling header code
 
-=item nocache() 
+=item no_cache($r) 
 
 specifies header code to not have cache