--- loncom/lonnet/perl/lonnet.pm	2003/02/10 20:03:13	1.324
+++ loncom/lonnet/perl/lonnet.pm	2003/03/07 23:45:31	1.336
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.324 2003/02/10 20:03:13 www Exp $
+# $Id: lonnet.pm,v 1.336 2003/03/07 23:45:31 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -76,7 +76,7 @@ qw(%perlvar %hostname %homecache %badSer
    %libserv %pr %prp %metacache %packagetab %titlecache 
    %courselogs %accesshash $processmarker $dumpcount 
    %coursedombuf %coursehombuf %courseresdatacache 
-   %domaindescription);
+   %domaindescription %domain_auth_def %domain_auth_arg_def $tmpdir);
 use IO::Socket;
 use GDBM_File;
 use Apache::Constants qw(:common :http);
@@ -729,8 +729,8 @@ sub subscribe {
     $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
     my ($udom,$uname)=split(/\//,$author);
     my $home=homeserver($uname,$udom);
-    if ($home eq 'no_host') { 
-        return 'not_found'; 
+    if ($home eq 'no_host') {
+        return 'not_found';
     }
     my $answer=reply("sub:$fname",$home);
     if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
@@ -804,6 +804,18 @@ sub repcopy {
     }
 }
 
+# ------------------------------------------------ Get server side include body
+sub ssi_body {
+    my $filelink=shift;
+    my $output=($filelink=~/^http\:/?&externalssi($filelink):
+                                     &ssi($filelink));
+    $output=~s/^.*\<body[^\>]*\>//si;
+    $output=~s/\<\/body\s*\>.*$//si;
+    $output=~
+            s/\/\/ BEGIN LON\-CAPA Internal.+\/\/ END LON\-CAPA Internal\s//gs;
+    return $output;
+}
+
 # --------------------------------------------------------- Server Side Include
 
 sub ssi {
@@ -1112,10 +1124,14 @@ sub expirespread {
 # ----------------------------------------------------- Devalidate Spreadsheets
 
 sub devalidate {
-    my $symb=shift;
+    my ($symb,$uname,$udom)=@_;
     my $cid=$ENV{'request.course.id'}; 
     if ($cid) {
-	my $key=$ENV{'user.name'}.':'.$ENV{'user.domain'}.':';
+# delete the stored spreadsheets for
+# - the student level sheet of this user in course's homespace
+# - the assessment level sheet for this resource 
+#   for this user in user's homespace
+	my $key=$uname.':'.$udom.':';
         my $status=
 	    &del('nohist_calculatedsheets',
 		 [$key.'studentcalc'],
@@ -1126,7 +1142,7 @@ sub devalidate {
 		 [$key.'assesscalc:'.$symb]);
         unless ($status eq 'ok ok') {
            &logthis('Could not devalidate spreadsheet '.
-                    $ENV{'user.name'}.' at '.$ENV{'user.domain'}.' for '.
+                    $uname.' at '.$udom.' for '.
 		    $symb.': '.$status);
         }
     }
@@ -1458,7 +1474,10 @@ sub store {
     $symb=&symbclean($symb);
     if (!$symb) { unless ($symb=&symbread()) { return ''; } }
 
-    &devalidate($symb);
+    if (!$domain) { $domain=$ENV{'user.domain'}; }
+    if (!$stuname) { $stuname=$ENV{'user.name'}; }
+
+    &devalidate($symb,$stuname,$domain);
 
     $symb=escape($symb);
     if (!$namespace) { 
@@ -1466,8 +1485,6 @@ sub store {
           return ''; 
        } 
     }
-    if (!$domain) { $domain=$ENV{'user.domain'}; }
-    if (!$stuname) { $stuname=$ENV{'user.name'}; }
     if (!$home) { $home=$ENV{'user.home'}; }
     my $namevalue='';
     foreach (keys %$storehash) {
@@ -1489,7 +1506,10 @@ sub cstore {
     $symb=&symbclean($symb);
     if (!$symb) { unless ($symb=&symbread()) { return ''; } }
 
-    &devalidate($symb);
+    if (!$domain) { $domain=$ENV{'user.domain'}; }
+    if (!$stuname) { $stuname=$ENV{'user.name'}; }
+
+    &devalidate($symb,$stuname,$domain);
 
     $symb=escape($symb);
     if (!$namespace) { 
@@ -1497,8 +1517,6 @@ sub cstore {
           return ''; 
        } 
     }
-    if (!$domain) { $domain=$ENV{'user.domain'}; }
-    if (!$stuname) { $stuname=$ENV{'user.name'}; }
     if (!$home) { $home=$ENV{'user.home'}; }
 
     my $namevalue='';
@@ -1749,11 +1767,12 @@ sub dump {
 
 # --------------------------------------------------------------- currentdump
 sub currentdump {
-   my ($namespace,$udomain,$uname)=@_;
-   if (!$udomain) { $udomain = $ENV{'user.domain'}; }
-   if (!$uname)   { $uname   = $ENV{'user.name'};   }
-   my $uhome = &homeserver($uname,$udomain);
-   my $rep=reply("currentdump:$udomain:$uname:$namespace",$uhome);
+   my ($courseid,$sdom,$sname)=@_;
+   $courseid = $ENV{'request.course.id'} if (! defined($courseid));
+   $sdom     = $ENV{'user.domain'}       if (! defined($sdom));
+   $sname    = $ENV{'user.name'}         if (! defined($sname));
+   my $uhome = &homeserver($sname,$sdom);
+   my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
    return if ($rep =~ /^(error:|no_such_host)/);
    #
    my %returnhash=();
@@ -1761,7 +1780,7 @@ sub currentdump {
    if ($rep eq "unknown_cmd") { 
        # an old lond will not know currentdump
        # Do a dump and make it look like a currentdump
-       my @tmp = &dump($namespace,$udomain,$uname,'.');
+       my @tmp = &dump($courseid,$sdom,$sname,'.');
        return if ($tmp[0] =~ /^(error:|no_such_host)/);
        my %hash = @tmp;
        @tmp=();
@@ -2150,6 +2169,7 @@ sub is_on_map {
     my $filename=$uriparts[$#uriparts];
     my $pathname=$uri;
     $pathname=~s|/\Q$filename\E$||;
+    $pathname=~s/^adm\/wrapper\///;    
     #Trying to find the conditional for the file
     my $match=($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~
 	       /\&\Q$filename\E\:([\d\|]+)\&/);
@@ -2811,7 +2831,6 @@ sub EXT {
     my ($varname,$symbparm,$udom,$uname,)=@_;
 
     unless ($varname) { return ''; }
-
     #get real user name/domain, courseid and symb
     my $courseid;
     if (!($uname && $udom)) {
@@ -2835,8 +2854,12 @@ sub EXT {
     if ($realm eq 'user') {
 # --------------------------------------------------------------- user.resource
 	if ($space eq 'resource') {
-	    my %restored=&restore(undef,undef,$udom,$uname);
-            return $restored{$qualifierrest};
+	    if (defined($Apache::lonhomework::parsing_a_problem)) {
+		return $Apache::lonhomework::history{$qualifierrest};
+	    } else {
+		my %restored=&restore($symbparm,$courseid,$udom,$uname);
+		return $restored{$qualifierrest};
+	    }
 # ----------------------------------------------------------------- user.access
         } elsif ($space eq 'access') {
 	    # FIXME - not supporting calls for a specific user
@@ -2871,9 +2894,8 @@ sub EXT {
             return $uname;
 # ---------------------------------------------------- Any other user namespace
         } else {
-            my $item=($rest)?$qualifier.'.'.$rest:$qualifier;
-            my %reply=&get($space,[$item]);
-            return $reply{$item};
+            my %reply=&get($space,[$qualifierrest],$udom,$uname);
+            return $reply{$qualifierrest};
         }
     } elsif ($realm eq 'query') {
 # ---------------------------------------------- pull stuff out of query string
@@ -2990,16 +3012,12 @@ sub EXT {
 
 # ------------------------------------------------------------------ Cascade up
 	unless ($space eq '0') {
-	    my ($part,$id)=split(/\_/,$space);
-	    if ($id) {
-		my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
-				     $symbparm,$udom,$uname);
-		if (defined($partgeneral)) { return $partgeneral; }
-	    } else {
-		my $resourcegeneral=&EXT('resource.0.'.$qualifierrest,
-					 $symbparm,$udom,$uname);
-		if (defined($resourcegeneral)) { return $resourcegeneral; }
-	    }
+	    my @parts=split(/_/,$space);
+	    my $id=pop(@parts);
+	    my $part=join('_',@parts);
+	    if ($part eq '') { $part='0'; }
+	    my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
+				 $symbparm,$udom,$uname);
 	}
 
 # ---------------------------------------------------- Any other user namespace
@@ -3021,6 +3039,22 @@ sub EXT {
     return '';
 }
 
+sub add_prefix_and_part {
+    my ($prefix,$part)=@_;
+    my $keyroot;
+    if (defined($prefix) && $prefix !~ /^__/) {
+	# prefix that has a part already
+	$keyroot=$prefix;
+    } elsif (defined($prefix)) {
+	# prefix that is missing a part
+	if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
+    } else {
+	# no prefix at all
+	if (defined($part)) { $keyroot='_'.$part; }
+    }
+    return $keyroot;
+}
+
 # ---------------------------------------------------------------- Get metadata
 
 sub metadata {
@@ -3049,7 +3083,7 @@ sub metadata {
         }
         my %metathesekeys=();
         unless ($filename=~/\.meta$/) { $filename.='.meta'; }
-	my $metastring=&getfile($perlvar{'lonDocRoot'}.'/res/'.$filename);
+	my $metastring=&getfile(&filelocation('',&clutter($filename)));
         my $parser=HTML::LCParser->new(\$metastring);
         my $token;
         undef %metathesekeys;
@@ -3060,14 +3094,7 @@ sub metadata {
 # This is a package - get package info
 #
 	      my $package=$token->[2]->{'package'};
-	      my $keyroot='';
-              if ($prefix) {
-		  $keyroot.=$prefix;
-              } else {
-                if (defined($token->[2]->{'part'})) { 
-                   $keyroot.='_'.$token->[2]->{'part'}; 
-	        }
-	      }
+	      my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
               if (defined($token->[2]->{'id'})) { 
                  $keyroot.='_'.$token->[2]->{'id'}; 
 	      }
@@ -3108,13 +3135,8 @@ sub metadata {
               } else {
                  $unikey=$entry;
 	      }
-              if ($prefix) {
-		  $unikey.=$prefix;
-              } else {
-                if (defined($token->[2]->{'part'})) { 
-                   $unikey.='_'.$token->[2]->{'part'}; 
-	        }
-	      }
+	      $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
+
               if (defined($token->[2]->{'id'})) { 
                  $unikey.='_'.$token->[2]->{'id'}; 
 	      }
@@ -3566,6 +3588,29 @@ BEGIN {
     }
 }
 
+# ------------------------------------------------------------ Read domain file
+{
+    my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
+                            '/domain.tab');
+    %domaindescription = ();
+    %domain_auth_def = ();
+    %domain_auth_arg_def = ();
+    if ($fh) {
+       while (<$fh>) {
+           next if /^\#/;
+           chomp;
+           my ($domain, $domain_description, $def_auth, $def_auth_arg)
+               = split(/:/,$_,4);
+           $domain_auth_def{$domain}=$def_auth;
+           $domain_auth_arg_def{$domain}=$def_auth_arg;
+           $domaindescription{$domain}=$domain_description;
+#          &logthis("Domain.tab: $domain, $domain_auth_def{$domain}, $domain_auth_arg_def{$domain},$domaindescription{$domain}");
+#          &logthis("Domain.tab: $domain ".$domaindescription{$domain} );
+       }
+    }
+}
+
+
 # ------------------------------------------------------------- Read hosts file
 {
     my $config=Apache::File->new("$perlvar{'lonTabDir'}/hosts.tab");
@@ -3579,7 +3624,6 @@ BEGIN {
 	 $hostdom{$id}=$domain;
 	 $hostip{$id}=$ip;
 	 $iphost{$ip}=$id;
-	 if ($domdescr) { $domaindescription{$domain}=$domdescr; }
 	 if ($role eq 'library') { $libserv{$id}=$name; }
        } else {
 	 if ($configline) {
@@ -3641,6 +3685,12 @@ BEGIN {
     }
 }
 
+# ------------- set up temporary directory
+{
+    $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
+
+}
+
 %metacache=();
 
 $processmarker='_'.time.'_'.$perlvar{'lonHostID'};