--- loncom/lonnet/perl/lonnet.pm 1999/11/18 19:52:46 1.4
+++ loncom/lonnet/perl/lonnet.pm 2000/01/14 21:12:40 1.9
@@ -1,14 +1,18 @@
# The LearningOnline Network
# TCP networking package
# 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 Gerd Kortemeyer
+# 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 Gerd Kortemeyer
package Apache::lonnet;
use strict;
use Apache::File;
+use LWP::UserAgent();
use vars qw(%perlvar %hostname %homecache %spareid %hostdom %libserv $readit);
use IO::Socket;
+use Apache::Constants qw(:common :http);
# --------------------------------------------------------------------- Logging
@@ -42,8 +46,8 @@ sub subreply {
or return "con_lost";
print $client "$cmd\n";
my $answer=<$client>;
- chomp($answer);
if (!$answer) { $answer="con_lost"; }
+ chomp($answer);
return $answer;
}
@@ -93,13 +97,14 @@ sub critical {
if ($answer eq 'con_lost') {
my $now=time;
my $middlename=$cmd;
+ $middlename=substr($middlename,0,16);
$middlename=~s/\W//g;
my $dfilename=
"$perlvar{'lonSockDir'}/delayed/$now.$middlename.$server";
{
my $dfh;
if ($dfh=Apache::File->new(">$dfilename")) {
- print $dfh "$server:$cmd\n";
+ print $dfh "$cmd\n";
}
}
sleep 2;
@@ -111,7 +116,7 @@ sub critical {
}
}
chomp($wcmd);
- if ($wcmd eq "$server:$cmd") {
+ if ($wcmd eq $cmd) {
&logthis("Connection buffer $dfilename: $cmd");
&logperm("D:$server:$cmd");
return 'con_delayed';
@@ -125,6 +130,37 @@ sub critical {
return $answer;
}
+# ---------------------------------------------------------- Append Environment
+
+sub appenv {
+ my %newenv=@_;
+ my @oldenv;
+ {
+ my $fh;
+ unless ($fh=Apache::File->new("$ENV{'user.environment'}")) {
+ return 'error';
+ }
+ @oldenv=<$fh>;
+ }
+ for (my $i=0; $i<=$#oldenv; $i++) {
+ chomp($oldenv[$i]);
+ if ($oldenv[$i] ne '') {
+ my ($name,$value)=split(/=/,$oldenv[$i]);
+ $newenv{$name}=$value;
+ }
+ }
+ {
+ my $fh;
+ unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) {
+ return 'error';
+ }
+ my $newname;
+ foreach $newname (keys %newenv) {
+ print $fh "$newname=$newenv{$newname}\n";
+ }
+ }
+ return 'ok';
+}
# ------------------------------ Find server with least workload from spare.tab
sub spareserver {
@@ -149,8 +185,14 @@ sub authenticate {
($udom eq $perlvar{'lonDefDomain'})) {
my $answer=reply("encrypt:auth:$udom:$uname:$upass",$perlvar{'lonHostID'});
if ($answer =~ /authorized/) {
- if ($answer eq 'authorized') { return $perlvar{'lonHostID'}; }
- if ($answer eq 'non_authorized') { return 'no_host'; }
+ if ($answer eq 'authorized') {
+ &logthis("User $uname at $udom authorized by local server");
+ return $perlvar{'lonHostID'};
+ }
+ if ($answer eq 'non_authorized') {
+ &logthis("User $uname at $udom rejected by local server");
+ return 'no_host';
+ }
}
}
@@ -159,10 +201,18 @@ sub authenticate {
if ($hostdom{$tryserver} eq $udom) {
my $answer=reply("enc:auth:$udom:$uname:$upass",$tryserver);
if ($answer =~ /authorized/) {
- if ($answer eq 'authorized') { return $tryserver; }
+ if ($answer eq 'authorized') {
+ &logthis("User $uname at $udom authorized by $tryserver");
+ return $tryserver;
+ }
+ if ($answer eq 'non_authorized') {
+ &logthis("User $uname at $udom rejected by $tryserver");
+ return 'no_host';
+ }
}
}
- }
+ }
+ &logthis("User $uname at $udom could not be authenticated");
return 'no_host';
}
@@ -189,12 +239,10 @@ sub homeserver {
# ----------------------------- Subscribe to a resource, return URL if possible
sub subscribe {
my $fname=shift;
- &logthis($fname);
my $author=$fname;
$author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
my ($udom,$uname)=split(/\//,$author);
my $home=homeserver($uname,$udom);
- &logthis("$home $udom $uname");
if (($home eq 'no_host') || ($home eq $perlvar{'lonHostID'})) {
return 'not_found';
}
@@ -202,6 +250,64 @@ sub subscribe {
return $answer;
}
+# -------------------------------------------------------------- Replicate file
+
+sub repcopy {
+ my $filename=shift;
+ my $transname="$filename.in.transfer";
+ my $remoteurl=subscribe($filename);
+ if ($remoteurl eq 'con_lost') {
+ &logthis("Subscribe returned con_lost: $filename");
+ return HTTP_SERVICE_UNAVAILABLE;
+ } elsif ($remoteurl eq 'not_found') {
+ &logthis("Subscribe returned not_found: $filename");
+ return HTTP_NOT_FOUND;
+ } elsif ($remoteurl eq 'forbidden') {
+ &logthis("Subscribe returned forbidden: $filename");
+ return FORBIDDEN;
+ } else {
+ my @parts=split(/\//,$filename);
+ my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
+ if ($path ne "$perlvar{'lonDocRoot'}/res") {
+ &logthis("Malconfiguration for replication: $filename");
+ return HTTP_BAD_REQUEST;
+ }
+ my $count;
+ for ($count=5;$count<$#parts;$count++) {
+ $path.="/$parts[$count]";
+ if ((-e $path)!=1) {
+ mkdir($path,0777);
+ }
+ }
+ my $ua=new LWP::UserAgent;
+ my $request=new HTTP::Request('GET',"$remoteurl");
+ my $response=$ua->request($request,$transname);
+ if ($response->is_error()) {
+ unlink($transname);
+ my $message=$response->status_line;
+ &logthis("LWP GET: $message: $filename");
+ return HTTP_SERVICE_UNAVAILABLE;
+ } else {
+ rename($transname,$filename);
+ return OK;
+ }
+ }
+}
+
+# ----------------------------------------------------------------------- Store
+
+sub store {
+ my %storehash=shift;
+ my $command="store:$ENV{'user.domain'}:$ENV{'user.name'}:"
+ ."$ENV{'user.class'}:$ENV{'request.filename'}:";
+}
+
+# --------------------------------------------------------------------- Restore
+
+sub restore {
+ my $command="restore:$ENV{'user.domain'}:$ENV{'user.name'}:"
+ ."$ENV{'user.class'}:$ENV{'request.filename'}:";
+}
# ================================================================ Main Program
@@ -214,6 +320,7 @@ if ($readit ne 'done') {
while (my $configline=<$config>) {
if ($configline =~ /PerlSetVar/) {
my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
+ chomp($varvalue);
$perlvar{$varname}=$varvalue;
}
}