Annotation of loncom/lontrans.pm, revision 1.14.10.2.2.4
1.1 www 1: # The LearningOnline Network
2: # URL translation for User Files
3: #
1.14.10.2.2.4! (raeburn 4:: # $Id: lontrans.pm,v 1.14.10.2.2.3 2022/07/08 16:17:26 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;
32: use Apache::Constants qw(:common :remotehost);
1.14.10.2.2.2 (raeburn 33:: use Apache::lonnet;
1.14.10.2 raeburn 34: use Apache::loncommon;
1.1 www 35: use Apache::File();
1.14.10.2.2.1 (raeburn 36:: use LONCAPA qw(:DEFAULT :match);
1.2 www 37:
1.1 www 38: sub handler {
39: my $r = shift;
1.14.10.2.2.4! (raeburn 40:: # FIXME line remove when mod_perl fixes BUG#4948
1.12 albertel 41: $r->notes->set('error-notes' => '');
1.14.10.2.2.4! (raeburn 42:: if (($r->uri eq '/adm/service/passback') ||
! 43:: ($r->uri eq '/adm/service/roster')) {
! 44:: return OK;
! 45:: }
1.14.10.2 raeburn 46: my $alias = &Apache::lonnet::get_proxy_alias();
47: if ($alias) {
48: my $hdrhost = $r->headers_in->get('Host');
49: my $lonhost = $r->dir_config('lonHostID');
50: my $hostname = &Apache::lonnet::hostname($lonhost);
51: my $ssourl = '/adm/sso';
52: if ($r->dir_config('lonOtherAuthenUrl') ne '') {
53: $ssourl = $r->dir_config('lonOtherAuthenUrl');
54: }
55: if (($hdrhost eq $alias) || ($hdrhost eq $hostname)) {
56: my $proxyinfo = &Apache::lonnet::get_proxy_settings($r->dir_config('lonDefDomain'));
57: my ($vpnint,$vpnext);
58: if (ref($proxyinfo) eq 'HASH') {
59: $vpnint = $proxyinfo->{'vpnint'};
60: $vpnext = $proxyinfo->{'vpnext'};
61: }
62: my ($redirect,$remote_ip);
63: if ($hdrhost eq $alias) {
64: $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP);
1.14.10.2.2.1 (raeburn 65:: if (($vpnext && &Apache::lonnet::ip_match($remote_ip,$vpnext)) &&
66:: ($r->uri !~ m{^/adm/(lti|launch)/})) {
1.14.10.2 raeburn 67: $redirect = $hostname;
68: }
69: if ($r->uri eq $ssourl) {
70: if (&Apache::lonnet::alias_sso($lonhost)) {
71: undef($redirect);
72: } else {
73: $redirect = $hostname;
74: }
75: }
76: if ($redirect eq $hdrhost) {
77: undef($redirect);
78: }
79: } elsif ($hdrhost eq $hostname) {
80: $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP,1);
81: unless (($remote_ip eq '127.0.0.1') || ($remote_ip eq '::1') ||
82: ($remote_ip eq &Apache::lonnet::get_host_ip($lonhost)) ||
1.14.10.2.2.1 (raeburn 83:: ($r->uri=~m{^/adm/(lti|launch)/}) ||
1.14.10.2 raeburn 84: ($vpnint && &Apache::lonnet::ip_match($remote_ip,$vpnint))) {
85: $redirect = $alias;
86: if (($r->uri=~m{^/raw/}) || ($r->uri=~m{^/adm/dns/})) {
87: my %iphost = &Apache::lonnet::get_iphost();
88: if (exists($iphost{$remote_ip})) {
89: undef($redirect);
90: }
91: } elsif ($r->uri eq $ssourl) {
92: unless (&Apache::lonnet::alias_sso($lonhost)) {
93: undef($redirect);
94: }
95: }
96: }
97: }
98: if ($redirect) {
99: my $uri = $r->uri;
100: if (($uri eq '/adm/switchserver') || ($uri =~ m{^/Shibboleth.sso/})) {
101: return DECLINED;
102: }
103: unless (($uri eq '/adm/migrateuser') || ($uri eq $ssourl)) {
104: my %user;
105: my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
106: if (($handle) && ($user{'name'} ne '') && ($user{'domain'} ne '')) {
107: unless (($user{'name'} eq 'public') && ($user{'domain'} eq 'public')) {
108: my $dest = '/adm/migrateuser';
109: my $token = &set_token($r,$dest,$remote_ip,\%user);
110: unless ($token eq '') {
111: $r->internal_redirect("$dest?token=$token");
112: $r->set_handlers('PerlHandler'=> undef);
113: return DECLINED;
114: }
115: }
116: }
117: }
118: my $protocol = 'http';
119: my $port = $r->get_server_port();
120: if ($port eq '443') {
121: $protocol = 'https';
122: }
123: if ($uri =~ m{^(/adm/css/)(.+)(.css)$}) {
124: $uri = $1.&escape($2).$3;
125: }
126: my $location = $protocol.'://'.$redirect.$uri;
1.14.10.2.2.1 (raeburn 127:: if ($r->uri =~ m{^/tiny/$match_domain/\w+$}) {
128:: my $token = &set_token($r,$r->uri);
129:: unless ($token eq '') {
130:: $location .= '?ttoken='.$token;
131:: }
132:: } elsif ($r->args) {
1.14.10.2 raeburn 133: $location .= '?'.$r->args;
134: }
135: $r->header_out(Location => $location);
136: return REDIRECT;
137: }
138: }
139: }
1.14.10.2.2.1 (raeburn 140:: if ($r->uri =~ m{^/tiny/$match_domain/\w+$}) {
141:: my $token = &set_token($r,$r->uri);
142:: unless ($token eq '') {
143:: $r->args('ttoken='.$token);
144:: }
145:: }
1.7 raeburn 146: if ($r->uri=~m|^(/raw)?/uploaded/|) {
147: my $fn = $r->uri();
148: $fn=~s/^\/raw//;
149: my (undef,undef,$udom,$uname,@ufile)=split(/\//,$fn);
1.10 albertel 150: if (@ufile) { $ufile[-1]=~s/^[\~\.]+//; }
1.7 raeburn 151: my $chome=&Apache::lonnet::homeserver($uname,$udom);
1.9 albertel 152: my $allowed=0;
153: my @ids=&Apache::lonnet::current_machine_ids();
154: foreach my $id (@ids) { if ($id eq $chome) { $allowed=1; } }
155: if ($allowed) {
1.13 albertel 156: $r->filename(&propath($udom,$uname).
157: '/userfiles/'.(join('/',@ufile)));
1.7 raeburn 158: }
1.14.10.1 raeburn 159: return OK;
160: } elsif ($r->uri =~ m{^\Q/adm/wrapper/ext/https:/\E[^/]}) {
161: my $uri = $r->uri;
162: $uri =~ s{^(\Q/adm/wrapper/ext/https:/\E)}{$1/};
163: $r->uri($uri);
164: }
165: return DECLINED;
1.1 www 166: }
167:
1.14.10.2 raeburn 168: sub set_token {
169: my ($r,$dest,$remote_ip,$userref) = @_;
170: my (%info,%user);
171: if ($dest eq '/adm/migrateuser') {
172: return unless (ref($userref) eq 'HASH');
173: %user = %{$userref};
174: %info = ('ip' => $remote_ip,
175: 'domain' => $user{'domain'},
176: 'username' => $user{'name'},
177: 'server' => $r->dir_config('lonHostID'),
178: );
179: }
180: if ($r->args) {
181: foreach my $pair (split(/&/,$r->args)) {
182: my ($name,$value) = split(/=/,$pair);
183: $name = &LONCAPA::unescape($name);
1.14.10.2.2.1 (raeburn 184:: next unless (($name eq 'role') || ($name eq 'symb') ||
185:: ($name eq 'ltoken') || ($name eq 'linkkey') ||
186:: ($name eq 'ttoken'));
1.14.10.2 raeburn 187: $value =~ tr/+/ /;
188: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
189: $info{$name} = $value;
190: }
1.14.10.2.2.1 (raeburn 191:: if ($info{'ttoken'}) {
192:: my %current = &Apache::lonnet::tmpget($info{'ttoken'});
193:: delete($info{'ttoken'});
194:: if ($current{'origurl'} eq $r->uri) {
195:: return if (keys(%current));
196:: }
197:: }
198:: }
199:: #
200:: # To be able to support deep-linking for a shortened URL, i.e.,
201:: # /tiny/$dom/$id with (a) linkkey included in POSTed data and
202:: # data and (b) non-Shibboleth SSO in use, ltoken (or linkprot
203:: # if sending to /adm/migrateuser), or linkkey are written to a
204:: # .tmp file in /home/httpd/perl/tmp and the query string is
205:: # replaced with ttoken=tokenid. This does mean other POSTed
206:: # data will be discarded.
207:: #
208:: if ($r->uri =~ m{^/tiny/$match_domain/\w+$}) {
209:: unless (($info{'ltoken'}) || ($info{'linkkey'} ne '')) {
210:: &Apache::lonacc::get_posted_cgi($r,['linkkey']);
211:: if ($env{'form.linkkey'} ne '') {
212:: $info{'linkkey'} = $env{'form.linkkey'};
213:: }
214:: }
1.14.10.2 raeburn 215: }
216: if ($dest eq '/adm/migrateuser') {
1.14.10.2.2.1 (raeburn 217:: if ($info{'ltoken'}) {
218:: my %link_info = &Apache::lonnet::tmpget($info{'ltoken'});
219:: if ($link_info{'linkprot'}) {
220:: $info{'linkprot'} = $link_info{'linkprot'};
1.14.10.2.2.4! (raeburn 221:: foreach my $item ('linkprotuser','linkprotexit','linkprotpbid','linkprotpburl') {
1.14.10.2.2.3 (raeburn 222:: if ($link_info{$item} ne '') {
223:: $info{$item} = $link_info{$item};
224:: }
225:: }
1.14.10.2.2.1 (raeburn 226:: }
1.14.10.2.2.3 (raeburn 227:: &Apache::lonnet::tmpdel($info{'ltoken'});
1.14.10.2.2.1 (raeburn 228:: delete($info{'ltoken'});
229:: }
1.14.10.2 raeburn 230: unless ($info{'role'}) {
231: if ($user{'role'} ne '') {
232: $info{'role'} = $user{'role'};
233: }
234: }
235: unless ($info{'symb'}) {
236: unless ($r->uri eq '/adm/roles') {
237: $info{'origurl'} = $r->uri;
238: }
239: }
240: }
241: if (($dest eq '/adm/migrateuser') || (keys(%info) > 0)) {
242: unless ($dest eq '/adm/migrateuser') {
243: $info{'origurl'} = $r->uri;
244: }
245: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'link');
246: unless (($token eq 'con_lost') || ($token eq 'refused') ||
247: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
248: return $token;
249: }
250: }
251: return;
252: }
253:
1.1 www 254: 1;
255: __END__
256:
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