# The LearningOnline Network # URL translation for User Files # # $Id: lontrans.pm,v 1.20 2018/04/14 02:29:51 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 :http); 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/$match_courseid/(default|supplemental)(|_\d+)\.(?:sequence|page)___\d+___.+$}) { if ($user{'ltiuri'} ne $realuri) { &Apache::lonnet::appenv({'request.lti.uri' => $realuri}); } my ($map,$resid,$url) = split(/___/,$realuri); $realuri = &Apache::lonnet::clutter($url).'?symb='.$realuri; } elsif ($realuri =~ m{^tiny/$match_domain/\w+$}) { $realuri = '/'.$realuri; if ($user{'ltiuri'} ne $realuri) { &Apache::lonnet::appenv({'request.lti.uri' => $realuri}); } } elsif ($realuri =~ m{($match_domain)/($match_courseid)$}) { $realuri = '/adm/navmaps'; if ($user{'ltiuri'} ne '') { &Apache::lonnet::delenv('request.lti.uri'); } } else { $realuri = '/'.$realuri; if ($realuri =~ m{/default_\d+\.sequence$}) { if ($user{'ltiuri'} ne $realuri) { &Apache::lonnet::appenv({'request.lti.uri' => $realuri}); } $realuri .= (($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{^/+tiny/+($match_domain)/+(\w+)$}) { my ($cdom,$key) = ($1,$2); if (&Apache::lonnet::domain($cdom) ne '') { my %user; my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user); if ($handle ne '') { my $lonidsdir=$r->dir_config('lonIDsDir'); &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); if ($env{'request.course.id'}) { my $tinyurl; my ($result,$cached)=&Apache::lonnet::is_cached_new('tiny',$cdom."\0".$key); if (defined($cached)) { $tinyurl = $result; } else { my $configuname = &Apache::lonnet::get_domainconfiguser($cdom); my %currtiny = &Apache::lonnet::get('tiny',[$key],$cdom,$configuname); if ($currtiny{$key} ne '') { $tinyurl = $currtiny{$key}; &Apache::lonnet::do_cache_new('tiny',$cdom."\0".$key,$currtiny{$key},600); } } if ($tinyurl ne '') { my ($cnum,$symb) = split(/\&/,$tinyurl); if (($cnum =~ /^$match_courseid$/) && (&Apache::lonnet::homeserver($cnum,$cdom) ne 'no_host')) { if ($env{'request.course.id'} eq $cdom.'_'.$cnum) { my ($map,$resid,$url) = &Apache::lonnet::decode_symb($symb); if (&Apache::lonnet::is_on_map($url)) { my $realuri; if ((&Apache::lonnet::EXT('resource.0.hiddenresource',$symb) =~ /^yes$/i) && (!$env{'request.role.adv'})) { $env{'user.error.msg'}=$r->uri.':bre:1:1:Access to resource denied'; return HTTP_NOT_ACCEPTABLE; } if ((&Apache::lonnet::EXT('resource.0.encrypturl',$symb) =~ /^yes$/i) && (!$env{'request.role.adv'})) { $realuri = &Apache::lonenc::encrypted(&Apache::lonnet::clutter($url)); if (($url =~ /\.sequence$/) && ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement')) { $realuri .= '?navmap=1'; } else { $realuri .= '?symb='.&Apache::lonenc::encrypted($symb); } } else { $realuri = &Apache::lonnet::clutter($url); if (($url =~ /\.sequence$/) && ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement')) { $realuri .= '?navmap=1'; } else { $realuri .= '?symb='.$symb; } } 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__