--- loncom/lonnet/perl/lonnet.pm	2000/06/05 20:28:17	1.14
+++ loncom/lonnet/perl/lonnet.pm	2000/07/18 13:46:49	1.19
@@ -11,19 +11,27 @@
 # eget(namesp,array) : returns hash with keys from array filled in from namesp
 # get(namesp,array)  : returns hash with keys from array filled in from namesp
 # put(namesp,hash)   : stores hash in namesp
+# dump(namesp)       : dumps the complete namespace into a hash
+# ssi(url)           : does a complete request cycle on url to localhost
+# repcopy(filename)  : replicate file
+# dirlist(url)       : gets a directory listing
 #
 # 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30,
 # 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19,
 # 11/8,11/16,11/18,11/22,11/23,12/22,
 # 01/06,01/13,02/24,02/28,02/29,
 # 03/01,03/02,03/06,03/07,03/13,
-# 04/05,05/29,05/31,06/01,06/05 Gerd Kortemeyer
+# 04/05,05/29,05/31,06/01,
+# 06/05,06/26 Gerd Kortemeyer
+# 06/26 Ben Tyszka
+# 06/30,07/15,07/17,07/18 Gerd Kortemeyer
 
 package Apache::lonnet;
 
 use strict;
 use Apache::File;
 use LWP::UserAgent();
+use HTTP::Headers;
 use vars 
 qw(%perlvar %hostname %homecache %spareid %hostdom %libserv %pr %prp $readit);
 use IO::Socket;
@@ -285,6 +293,7 @@ sub subscribe {
 sub repcopy {
     my $filename=shift;
     my $transname="$filename.in.transfer";
+    if ((-e $filename) || (-e $transname)) { return OK; }
     my $remoteurl=subscribe($filename);
     if ($remoteurl eq 'con_lost') {
 	   &logthis("Subscribe returned con_lost: $filename");
@@ -319,12 +328,35 @@ sub repcopy {
                        ." LWP get: $message: $filename</font>");
                return HTTP_SERVICE_UNAVAILABLE;
            } else {
+	       if ($remoteurl!~/\.meta$/) {
+                  my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
+                  my $mresponse=$ua->request($mrequest,$filename.'.meta');
+                  if ($mresponse->is_error()) {
+		      unlink($filename.'.meta');
+                      &logthis(
+                     "<font color=yellow>INFO: No metadata: $filename</font>");
+                  }
+	       }
                rename($transname,$filename);
                return OK;
            }
     }
 }
 
+# --------------------------------------------------------- Server Side Include
+
+sub ssi {
+
+    my $fn=shift;
+
+    my $ua=new LWP::UserAgent;
+    my $request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn);
+    $request->header(Cookie => $ENV{'HTTP_COOKIE'});
+    my $response=$ua->request($request);
+
+    return $response->content;
+}
+
 # ------------------------------------------------------------------------- Log
 
 sub log {
@@ -464,6 +496,21 @@ sub get {
    return %returnhash;
 }
 
+# -------------------------------------------------------------- dump interface
+
+sub dump {
+   my $namespace=shift;
+   my $rep=reply("dump:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace",
+                $ENV{'user.home'});
+   my @pairs=split(/\&/,$rep);
+   my %returnhash=();
+   map {
+      my ($key,$value)=split(/=/,$_);
+      $returnhash{unespace($key)}=unescape($value);
+   } @pairs;
+   return %returnhash;
+}
+
 # --------------------------------------------------------------- put interface
 
 sub put {
@@ -544,6 +591,56 @@ sub plaintext {
 sub assignrole {
 }
 
+# ------------------------------------------------------------ Directory lister
+
+sub dirlist {
+    my $uri=shift;
+    $uri=~s/^\///;
+    $uri=~s/\/$//;
+    my ($res,$udom,$uname,@rest)=split(/\//,$uri);
+    if ($udom) {
+     if ($uname) {
+       my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/'.$uri,
+                      homeserver($uname,$udom));
+       return split(/:/,$listing);
+     } else {
+       my $tryserver;
+       my %allusers=();
+       foreach $tryserver (keys %libserv) {
+	  if ($hostdom{$tryserver} eq $udom) {
+             my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.$udom,
+			       $tryserver);
+             if (($listing ne 'no_such_dir') && ($listing ne 'empty')
+              && ($listing ne 'con_lost')) {
+                map {
+                  my ($entry,@stat)=split(/&/,$_);
+                  $allusers{$entry}=1;
+                } split(/:/,$listing);
+             }
+	  }
+       }
+       my $alluserstr='';
+       map {
+           $alluserstr.=$_.'&user:';
+       } sort keys %allusers;
+       $alluserstr=~s/:$//;
+       return split(/:/,$alluserstr);
+     } 
+   } else {
+       my $tryserver;
+       my %alldom=();
+       foreach $tryserver (keys %libserv) {
+	   $alldom{$hostdom{$tryserver}}=1;
+       }
+       my $alldomstr='';
+       map {
+          $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'&domain:';
+       } sort keys %alldom;
+       $alldomstr=~s/:$//;
+       return split(/:/,$alldomstr);       
+   }
+}
+
 # -------------------------------------------------------- Escape Special Chars
 
 sub escape {