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Annotation of loncom/lontrans.pm, revision 1.16

1.1       www         1: # The LearningOnline Network
                      2: # URL translation for User Files
                      3: #
1.16    ! raeburn     4: # $Id: lontrans.pm,v 1.15 2016/07/25 19:49:45 raeburn Exp $
1.1       www         5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
                     28: 
                     29: package Apache::lontrans;
                     30: 
                     31: use strict;
1.15      raeburn    32: use Apache::Constants qw(:common :remotehost REDIRECT);
1.1       www        33: use Apache::lonnet();
                     34: use Apache::File();
1.15      raeburn    35: use LONCAPA qw(:DEFAULT :match);
1.2       www        36: 
1.1       www        37: sub handler {
                     38:     my $r = shift;
1.12      albertel   39:     # FIXME line remove when mod_perl fixes BUG#4948 
                     40:     $r->notes->set('error-notes' => '');
1.15      raeburn    41:     if ($r->uri=~m{^/raw/}) {
                     42:         my $host = $r->headers_in->get('Host');
                     43:         if ($host) {
                     44:             unless ($host =~ /^internal\-/) {
1.16    ! raeburn    45:                 my $remote_ip = $r->get_remote_host();
        !            46:                 my $lonhost = $r->dir_config('lonHostID');
        !            47:                 if (&redirect_raw($remote_ip,$lonhost)) {
        !            48:                     my $location = 'https://internal-'.$host.$r->uri;
        !            49:                     $r->headers_out->set(Location => $location);
        !            50:                     return REDIRECT;
1.15      raeburn    51:                 }
                     52:             }
                     53:         }
                     54:     }
1.7       raeburn    55:     if ($r->uri=~m|^(/raw)?/uploaded/|) {
                     56:         my $fn = $r->uri();
                     57:         $fn=~s/^\/raw//;
                     58:         my (undef,undef,$udom,$uname,@ufile)=split(/\//,$fn);
1.10      albertel   59: 	if (@ufile) { $ufile[-1]=~s/^[\~\.]+//; }
1.7       raeburn    60:         my $chome=&Apache::lonnet::homeserver($uname,$udom);
1.9       albertel   61: 	my $allowed=0;
                     62: 	my @ids=&Apache::lonnet::current_machine_ids();
                     63: 	foreach my $id (@ids) { if ($id eq $chome) { $allowed=1; } }
                     64: 	if ($allowed) {
1.13      albertel   65: 	    $r->filename(&propath($udom,$uname).
                     66: 			 '/userfiles/'.(join('/',@ufile)));
1.7       raeburn    67:         }
1.15      raeburn    68:         return OK;
                     69:     } else { 
                     70:         return DECLINED;
                     71:     }
                     72: }
                     73: 
                     74: sub redirect_raw {
                     75:     my ($remote_ip,$lonhost) = @_;
                     76:     my @remhostids = &Apache::lonnet::get_hosts_from_ip($remote_ip);
                     77:     my $redirect;
                     78:     while (@remhostids) {
                     79:         my $try_server = pop(@remhostids);
                     80:         my $remhostname = &Apache::lonnet::hostname($try_server);
                     81:         if ($remhostname) {
                     82:             my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
                     83:             my ($remmajor,$remminor) = ($remoterev =~ /^(\d+)\.(\d+)/);
                     84:             if (($remmajor > 2) || (($remmajor == 2) && $remminor >= 12)) {
                     85:                 my $internet_names = &Apache::lonnet::get_internet_names($try_server);
                     86:                 if (ref($internet_names) eq 'ARRAY') {
                     87:                     my $intdom = &Apache::lonnet::internet_dom($lonhost);
                     88:                     unless (grep(/^\Q$intdom\E$/,@{$internet_names})) {
                     89:                         my $lonhostname = &Apache::lonnet::hostname($lonhost);
                     90:                         my $serverhomeID = &Apache::lonnet::get_server_homeID($lonhostname);
                     91:                         my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
                     92:                         my %domdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
                     93:                         my $replication = $domdefaults{'replication'};
                     94:                         if (ref($replication) eq 'HASH') {
                     95:                             my $remhomeID = &Apache::lonnet::get_server_homeID($remhostname);
                     96:                             my $remhomedom = &Apache::lonnet::host_domain($remhomeID);
                     97:                             my $remprimary = &Apache::lonnet::domain($remhomedom,'primary');
                     98:                             my $remintdom = &Apache::lonnet::internet_dom($remprimary);
                     99:                             if (ref($replication->{'certreq'}) eq 'ARRAY') {
                    100:                                 if (grep(/^\Q$remintdom\E$/,@{$replication->{'certreq'}})) {
                    101:                                     $redirect = 1;
                    102:                                 } else {
                    103:                                     $redirect = 0;
                    104:                                 }
                    105:                             }
                    106:                             if (ref($replication->{'nocertreq'}) eq 'ARRAY') {
                    107:                                 if (grep(/^\Q$remintdom\E$/,@{$replication->{'nocertreq'}})) {
                    108:                                     $redirect = 0;
                    109:                                 } else {
                    110:                                     $redirect = 1;
                    111:                                 }
                    112:                             }
                    113:                         }
                    114:                     }
                    115:                 }
                    116:             }
                    117:             last;
                    118:         }
                    119:     }
                    120:     return $redirect;  
1.1       www       121: }
                    122: 
                    123: 1;
                    124: __END__
                    125: 
                    126: 
                    127: 
                    128: 
                    129: 
                    130: 
                    131: