# The LearningOnline Network
# URL translation for User Files
#
# $Id: lontrans.pm,v 1.17 2017/11/30 15:14:58 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
package Apache::lontrans;
use strict;
use Apache::Constants qw(:common :remotehost REDIRECT);
use Apache::lonnet();
use Apache::File();
use LONCAPA qw(:DEFAULT :match);
sub handler {
my $r = shift;
# FIXME line remove when mod_perl fixes BUG#4948
$r->notes->set('error-notes' => '');
if ($r->uri =~ m{^/adm/lti/(.+)$}) {
my $realuri = $1;
my %user;
my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
if (($handle ne '') && ($user{'lti'})) {
if ($realuri =~ m{^uploaded/$match_domain/$match_courseid/(default|supplemental)(|_\d+)\.(?:sequence|page)___\d+___.+$}) {
my ($map,$resid,$url) = split(/___/,$realuri);
$realuri = &Apache::lonnet::clutter($url).'?symb='.$realuri;
} elsif ($realuri =~ m{($match_domain)/($match_courseid)$}) {
$realuri = '/adm/navmaps';
} else {
$realuri = '/'.$realuri;
if ($realuri =~ m{/default_\d+\.sequence$}) {
$realuri .= (($realuri =~/\?/)?'&':'?').'navmap=1';
}
}
my $host = $r->headers_in->get('Host');
if ($host) {
my $protocol = 'http';
if ($r->get_server_port == 443) {
$protocol = 'https';
}
my $location = $protocol.'://'.$host.$realuri;
$r->headers_out->set(Location => $location);
return REDIRECT;
}
}
} elsif ($r->uri=~m{^/raw/}) {
my $host = $r->headers_in->get('Host');
if ($host) {
unless ($host =~ /^internal\-/) {
my $remote_ip = $r->get_remote_host();
my $lonhost = $r->dir_config('lonHostID');
if (&redirect_raw($remote_ip,$lonhost)) {
my $location = 'https://internal-'.$host.$r->uri;
$r->headers_out->set(Location => $location);
return REDIRECT;
}
}
}
}
if ($r->uri=~m|^(/raw)?/uploaded/|) {
my $fn = $r->uri();
$fn=~s/^\/raw//;
my (undef,undef,$udom,$uname,@ufile)=split(/\//,$fn);
if (@ufile) { $ufile[-1]=~s/^[\~\.]+//; }
my $chome=&Apache::lonnet::homeserver($uname,$udom);
my $allowed=0;
my @ids=&Apache::lonnet::current_machine_ids();
foreach my $id (@ids) { if ($id eq $chome) { $allowed=1; } }
if ($allowed) {
$r->filename(&propath($udom,$uname).
'/userfiles/'.(join('/',@ufile)));
}
return OK;
} else {
return DECLINED;
}
}
sub redirect_raw {
my ($remote_ip,$lonhost) = @_;
my @remhostids = &Apache::lonnet::get_hosts_from_ip($remote_ip);
my $redirect;
while (@remhostids) {
my $try_server = pop(@remhostids);
my $remhostname = &Apache::lonnet::hostname($try_server);
if ($remhostname) {
my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
my ($remmajor,$remminor) = ($remoterev =~ /^(\d+)\.(\d+)/);
if (($remmajor > 2) || (($remmajor == 2) && $remminor >= 12)) {
my $internet_names = &Apache::lonnet::get_internet_names($try_server);
if (ref($internet_names) eq 'ARRAY') {
my $intdom = &Apache::lonnet::internet_dom($lonhost);
unless (grep(/^\Q$intdom\E$/,@{$internet_names})) {
my $lonhostname = &Apache::lonnet::hostname($lonhost);
my $serverhomeID = &Apache::lonnet::get_server_homeID($lonhostname);
my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
my %domdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
my $replication = $domdefaults{'replication'};
if (ref($replication) eq 'HASH') {
my $remhomeID = &Apache::lonnet::get_server_homeID($remhostname);
my $remhomedom = &Apache::lonnet::host_domain($remhomeID);
my $remprimary = &Apache::lonnet::domain($remhomedom,'primary');
my $remintdom = &Apache::lonnet::internet_dom($remprimary);
if (ref($replication->{'certreq'}) eq 'ARRAY') {
if (grep(/^\Q$remintdom\E$/,@{$replication->{'certreq'}})) {
$redirect = 1;
} else {
$redirect = 0;
}
}
if (ref($replication->{'nocertreq'}) eq 'ARRAY') {
if (grep(/^\Q$remintdom\E$/,@{$replication->{'nocertreq'}})) {
$redirect = 0;
} else {
$redirect = 1;
}
}
}
}
}
}
last;
}
}
return $redirect;
}
1;
__END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>