version 1.11, 2004/03/31 17:42:21
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version 1.24, 2020/12/18 15:23:03
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# |
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
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# (lonacc: Cookie Based Access Handler |
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# 5/21/99,5/22,5/29,5/31,6/15 Gerd Kortemeyer) |
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# 6/16,6/18,7/3, |
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# 6/30/00 Gerd Kortemeyer |
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package Apache::lonracc; |
=pod |
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use strict; |
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use Apache::Constants qw(:common :remotehost); |
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use Apache::lonnet(); |
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use Apache::File(); |
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sub subscribed { |
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my ($filename,$id) = @_; |
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my $found=0; |
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my $expr='^'.$id.':'.$Apache::lonnet::hostip{$id}.':'; |
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$expr =~ s/\./\\\./g; |
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my $sh; |
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if ($sh=Apache::File->new("$filename.subscription")) { |
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while (my $subline=<$sh>) { if ($subline =~ /$expr/) { $found=1; } } |
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$sh->close(); |
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} |
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return $found; |
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} |
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sub handler { |
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my $r = shift; |
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my $reqhost = $r->get_remote_host(REMOTE_DOUBLE_REV); |
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if (!$reqhost && $r->get_remote_host(REMOTE_NOLOOKUP) eq $r->get_server_name()) { |
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$reqhost = $r->get_server_name(); |
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} |
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unless ($reqhost) { |
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$r->log_reason("Spoof request from ".$ENV{'REMOTE_ADDR'}); |
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return FORBIDDEN; |
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} |
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my $readline; |
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my $lontabdir=$r->dir_config('lonTabDir'); |
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{ |
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my $fh; |
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unless ($fh=Apache::File->new("$lontabdir/hosts.tab")) { |
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$r->log_reason("Could not find host tab file"); |
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return FORBIDDEN; |
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} |
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my $return; |
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my @ids=(); |
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while ($readline=<$fh>) { |
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my ($id,$domain,$role,$name,$ip)=split(/:/,$readline); |
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if ($name =~ /$reqhost/i) { |
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my $filename=$r->filename; |
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my $uri =$r->uri; |
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if ((-e "$filename.$id") || |
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&subscribed($filename,$id) || |
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($filename=~/\.meta$/) || |
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($uri=~m|^/raw/uploaded|)) { |
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return OK; |
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} else { |
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$return=FORBIDDEN; |
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push(@ids,$id); |
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} |
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} |
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} |
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if ($return == FORBIDDEN) { |
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$r->log_reason(join(':',@ids)." not subscribed", $r->filename); |
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return FORBIDDEN; |
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} |
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} |
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$r->log_reason("Invalid request for file transfer from $reqhost", |
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$r->filename); |
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return FORBIDDEN; |
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} |
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1; |
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__END__ |
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=head1 NAME |
=head1 NAME |
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Line 144 access.
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Line 73 access.
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=cut |
=cut |
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package Apache::lonracc; |
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use strict; |
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use Apache::Constants qw(:common :remotehost); |
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use Apache::lonnet; |
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use Apache::File(); |
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use IO::Socket; |
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sub subscribed { |
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my ($filename,$id) = @_; |
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return 0 if (!-e "$filename.subscription"); |
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my $hostname=&Apache::lonnet::hostname($id); |
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my (undef,undef,undef,undef,$ip) = gethostbyname($hostname); |
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return 0 if (length($ip) != 4); |
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$ip=inet_ntoa($ip); |
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my $expr='^'.quotemeta($id).':'.quotemeta($ip).':'; |
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my $found=0; |
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if (my $sh=Apache::File->new("$filename.subscription")) { |
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while (my $subline=<$sh>) { if ($subline =~ /$expr/) { $found=1; } } |
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$sh->close(); |
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} |
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return $found; |
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} |
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sub handler { |
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my $r = shift; |
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my $filename=$r->filename; |
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if (!-e $filename) { |
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return NOT_FOUND; |
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} |
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my $reqhost = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP,1); |
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my @hostids= &Apache::lonnet::get_hosts_from_ip($reqhost); |
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if (!@hostids && $reqhost ne '127.0.0.1' ) { |
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$r->log_reason("Unable to find a host for ". |
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$r->get_remote_host(REMOTE_NOLOOKUP)); |
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return FORBIDDEN; |
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} |
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if ($reqhost eq '127.0.0.1') { |
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return OK; |
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} |
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my $return; |
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my @ids; |
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foreach my $id (@hostids) { |
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my $uri =$r->uri; |
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if (($filename=~/\.meta$/) || |
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($uri=~m|^/raw/uploaded|) || |
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(-e "$filename.$id") || |
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&subscribed($filename,$id) ) { |
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return OK; |
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} else { |
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$return=FORBIDDEN; |
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push(@ids,$id); |
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} |
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} |
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if ($return == FORBIDDEN) { |
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$r->log_reason(join(':',@ids)." not subscribed", $r->filename); |
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return FORBIDDEN; |
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} |
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$r->log_reason("Invalid request for file transfer from $reqhost", |
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$r->filename); |
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return FORBIDDEN; |
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} |
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1; |
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__END__ |
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