1: # The LearningOnline Network
2: # Starts a user off based of an existing token.
3: #
4: # $Id: migrateuser.pm,v 1.25.2.5.2.1 2022/01/01 17:00:40 raeburn Exp $
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::migrateuser;
30:
31: use strict;
32: use LONCAPA qw(:DEFAULT :match);
33: use Apache::Constants qw(:common :http :methods :remotehost);
34: use Apache::lonauth;
35: use Apache::lonnet;
36: use Apache::lonlocal;
37: use Apache::lonlogin();
38:
39: sub goto_login {
40: my ($r,$domain) = @_;
41: &Apache::loncommon::content_type($r,'text/html');
42: $r->send_http_header;
43: my $url = '/adm/login';
44: if ($domain) {
45: $url .= '?domain='.$domain;
46: }
47: $r->print(&Apache::loncommon::start_page('Going to login',undef,
48: {'redirect' => [0,$url],}).
49: '<h1>'.&mt('One moment please...').'</h1>'.
50: '<p>'.&mt('Transferring to login page.').'</p>'.
51: &Apache::loncommon::end_page());
52: return OK;
53: }
54:
55: sub sso_check {
56: my ($data) = @_;
57: my %extra_env;
58: if (ref($data) eq 'HASH') {
59: if ($data->{'sso.login'}) {
60: $extra_env{'request.sso.login'} = $data->{'sso.login'};
61: }
62: if ($data->{'sso.reloginserver'}) {
63: $extra_env{'request.sso.reloginserver'} =
64: $data->{'sso.reloginserver'};
65: }
66: }
67: return \%extra_env;
68: }
69:
70: sub ip_changed {
71: my ($r,$udom,$camefrom,$dataref) = @_;
72: &Apache::loncommon::content_type($r,'text/html');
73: $r->send_http_header;
74: if (ref($dataref) eq 'HASH') {
75: my $title = 'LON-CAPA Session redirected';
76: my $message = &mt('Your internet address has changed since you logged in.');
77: my $rule_in_effect;
78: if ($dataref->{'balancer'}) {
79: my $baldom = &Apache::lonnet::host_domain($camefrom);
80: my $balprimaryid = &Apache::lonnet::domain($baldom,'primary');
81: my $balintdom = &Apache::lonnet::internet_dom($balprimaryid);
82: my $uprimaryid = &Apache::lonnet::domain($udom,'primary');
83: my $uintdom = &Apache::lonnet::internet_dom($uprimaryid);
84: my $dom_in_use;
85: if (($uintdom ne '') && ($uintdom eq $balintdom)) {
86: $dom_in_use = $udom;
87: } else {
88: $dom_in_use = $baldom;
89: }
90: my ($result,$cached)=&Apache::lonnet::is_cached_new('loadbalancing',$dom_in_use);
91: unless (defined($cached)) {
92: my $cachetime = 60*60*24;
93: my %domconfig =
94: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
95: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
96: $result = &Apache::lonnet::do_cache_new('loadbalancing',$dom_in_use,
97: $domconfig{'loadbalancing'},$cachetime);
98: }
99: }
100: if (ref($result) eq 'HASH') {
101: (undef,my $currtargets,my $currrules) =
102: &Apache::lonnet::check_balancer_result($result,$dataref->{'server'});
103: if (ref($currrules) eq 'HASH') {
104: if ($dataref->{'sso.login'}) {
105: if ($currrules->{'_LC_ipchangesso'} ne '') {
106: $rule_in_effect = $currrules->{'_LC_ipchangesso'};
107: }
108: } else {
109: if ($currrules->{'_LC_ipchange'} ne '') {
110: $rule_in_effect = $currrules->{'_LC_ipchange'};
111: }
112: }
113: }
114: }
115: }
116: my $url;
117: my $lonhost= $r->dir_config('lonHostID');
118: my $switchto = $lonhost;
119: if ($rule_in_effect ne 'offloadedto') {
120: my $hosthere;
121: my @ids=&Apache::lonnet::current_machine_ids();
122: unless ($rule_in_effect eq 'balancer') {
123: if (grep(/^\Q$rule_in_effect\E$/,@ids)) {
124: $hosthere = 1;
125: }
126: }
127: unless ($hosthere) {
128: if ($dataref->{'role'}) {
129: my ($adom,$aname);
130: if ($dataref->{'role'} =~ m{^au\./($match_domain)/$}) {
131: $adom = $1;
132: $aname = $dataref->{'username'};
133: } elsif ($dataref->{'role'} =~ m{^(?:ca|aa)\./($match_domain)/($match_username)$}) {
134: $adom = $1;
135: $aname = $2;
136: }
137: if ($adom ne '' && $aname ne '') {
138: my $ahome = &Apache::lonnet::homeserver($aname,$adom);
139: unless ($ahome eq 'no_host') {
140: if ($ahome && grep(/^\Q$ahome\E$/,@ids)) {
141: $hosthere = 1;
142: }
143: }
144: }
145: }
146: }
147: unless ($hosthere) {
148: my $hostname;
149: if ($rule_in_effect eq 'balancer') {
150: $hostname = &Apache::lonnet::hostname($dataref->{'server'});
151: if ($hostname) {
152: $switchto = $dataref->{'server'};
153: }
154: } else {
155: $hostname = &Apache::lonnet::hostname($rule_in_effect);
156: if ($hostname) {
157: $switchto = $rule_in_effect;
158: }
159: }
160: if ($hostname) {
161: my $protocol = $Apache::lonnet::protocol{$switchto};
162: $protocol = 'http' if ($protocol ne 'https');
163: my $alias = &Apache::lonnet::use_proxy_alias($r,$switchto);
164: $hostname = $alias if ($alias ne '');
165: $url = $protocol.'://'.$hostname;
166: if ($rule_in_effect eq 'balancer') {
167: $message .= '<br />'.
168: &mt('As a result, your LON-CAPA session is being redirected to the server where you originally logged in.');
169: } else {
170: $message .= '<br />'.
171: &mt('As a result, your LON-CAPA session is being redirected.');
172: }
173: }
174: }
175: unless ($hosthere) {
176: if (($dataref->{'balancer'}) && ($dataref->{'balcookie'})) {
177: &Apache::lonnet::delbalcookie($dataref->{'balcookie'},$dataref->{'balancer'});
178: }
179: }
180: }
181: if ($dataref->{'sso.login'}) {
182: $url .= '/adm/roles';
183: } else {
184: $url .= '/adm/login';
185: if ($udom) {
186: $url .= '?domain='.$udom;
187: }
188: $message .= '<br />'.&mt('You will need to provide your password one more time.');
189: }
190: my %info= (
191: 'domain' => $udom,
192: 'username' => $dataref->{'username'},
193: 'sessionserver' => $lonhost,
194: );
195: my @names = ('origurl','symb','role','linkprot','linkkey');
196: foreach my $name (@names) {
197: if ($dataref->{$name} ne '') {
198: $info{$name} = $dataref->{$name};
199: }
200: }
201: my $iptoken = &Apache::lonnet::tmpput(\%info,$switchto,'link');
202: unless ($iptoken eq 'conlost') {
203: $url .= (($url =~ /\?/) ? '&' : '?') . 'iptoken='.$iptoken;
204: }
205: $r->print(&Apache::loncommon::start_page($title,undef,
206: {'redirect' =>
207: [2,$url],}).
208: '<h1>'.&mt('One moment please...').'</h1>'.
209: '<p class="LC_warning">'.$message.'</p>'.
210: &Apache::loncommon::end_page());
211: } else {
212: return &goto_login($r);
213: }
214: return OK;
215: }
216:
217: sub handler {
218: my ($r) = @_;
219:
220: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['token']);
221: my %data = &Apache::lonnet::tmpget($env{'form.token'});
222: if (keys(%data) == 0) {
223: return &goto_login($r);
224: }
225: my $delete = &Apache::lonnet::tmpdel($env{'form.token'});
226:
227: &Apache::lonlocal::get_language_handle($r);
228:
229: if ($delete ne 'ok') {
230: return &goto_login($r);
231: }
232:
233: if (!defined($data{'username'}) || !defined($data{'domain'})) {
234: return &goto_login($r);
235: }
236: my $ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP);
237: if ($data{'ip'} ne $ip) {
238: &Apache::lonnet::logthis('IP change when session migration requested -- was: '.
239: $data{'ip'}.'; now: '.$ip.' for '.$data{'username'}.':'.$data{'domain'});
240: return &ip_changed($r,$data{'domain'},$data{'server'},\%data);
241: }
242:
243: &Apache::lonnet::logthis("Allowing access for $data{'username'}:$data{'domain'} to $data{'role'}");
244: my $home=&Apache::lonnet::homeserver($data{'username'},$data{'domain'});
245: my $udom;
246: if (&Apache::lonnet::domain($data{'domain'})) {
247: $udom=$data{'domain'};
248: }
249: if ($home =~ /(con_lost|no_such_host)/) { return &goto_login($r,$udom); }
250:
251: my $extra_env = &sso_check(\%data);
252: if (($data{'balancer'}) && ($data{'server'}) && ($data{'balcookie'})) {
253: if (ref($extra_env) eq 'HASH') {
254: $extra_env->{'request.balancercookie'} = $data{'server'}.':'.$data{'balcookie'};
255: } else {
256: $extra_env = { 'request.balancercookie' => $data{'server'}.':'.$data{'balcookie'} };
257: }
258: } elsif (($data{'server'}) && ($data{'otherbalcookie'})) {
259: my ($balancer,$balcookie) = split(/:/,$data{'otherbalcookie'});
260: if (defined(&Apache::lonnet::hostname($balancer)) && $balcookie =~ /^[a-f0-9]{32}$/) {
261: my $baldom = &Apache::lonnet::host_domain($balancer);
262: if (&Apache::lonnet::shared_institution($baldom)) {
263: my $cookieid = join('_',$udom,$data{'username'},$balcookie);
264: &Apache::lonnet::updatebalcookie($cookieid,$balancer,$data{'server'});
265: if (ref($extra_env) eq 'HASH') {
266: $extra_env->{'request.balancercookie'} = $data{'otherbalcookie'};
267: } else {
268: $extra_env = { 'request.balancercookie' => $data{'otherbalcookie'} };
269: }
270: }
271: }
272: }
273:
274: my (%form,$cid);
275: if ($data{'symb'} ne '') {
276: $form{'symb'} = $data{'symb'};
277: }
278: if ($data{'iptoken'} ne '') {
279: $form{'iptoken'} = $data{'iptoken'};
280: }
281: if ($data{'noloadbalance'} ne '') {
282: $form{'noloadbalance'} = $data{'noloadbalance'};
283: }
284: if ($data{'role'}) {
285: if ($data{'role'} =~ m{\./($match_domain)/($match_courseid)(?:/\w+|$)}) {
286: unless (&Apache::lonnet::homeserver($2,$1) eq 'no_host') {
287: $cid = $1.'_'.$2;
288: }
289: }
290: } else {
291: my ($handle,$expirepub);
292: $handle = &Apache::lonnet::check_for_valid_session($r);
293:
294: # For "public user" - remove any existing "public" cookie so actual user is logged in.
295: if ($handle) {
296: if ($handle=~/^publicuser\_/) {
297: my $lonidsdir=$r->dir_config('lonIDsDir');
298: if ($lonidsdir ne '') {
299: unlink("$lonidsdir/$handle.id");
300: }
301: undef($handle);
302: $expirepub = 1;
303: }
304: }
305: if ($handle) {
306: &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
307: $handle);
308: my $checklaunch;
309: if ($data{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
310: if ($env{'request.linkprot'} ne '') {
311: unless ($env{'request.linkprot'} eq $data{'linkprot'}) {
312: $checklaunch = 1;
313: }
314: }
315: if ($env{'request.linkkey'} ne '') {
316: unless ($env{'request.linkkey'} eq $data{'linkkey'}) {
317: $checklaunch = 1;
318: }
319: }
320: if ($env{'request.deeplink.login'}) {
321: unless ($env{'request.deeplink.login'} eq $data{'deeplink.login'}) {
322: $checklaunch = 1;
323: }
324: }
325: }
326: if ($data{'linkprot'} ne '') {
327: &Apache::lonnet::appenv({'request.linkprot' => $data{'linkprot'}});
328: if ($env{'request.linkkey'}) {
329: &Apache::lonnet::delenv('request.linkkey');
330: }
331: my ($linkprotector,$deeplink) = split(/:/,$data{'linkprot'},2);
332: if ($env{'user.linkprotector'}) {
333: my @protectors = split(/,/,$env{'user.linkprotector'});
334: unless (grep(/^\Q$linkprotector\E$/,@protectors)) {
335: push(@protectors,$linkprotector);
336: @protectors = sort { $a <=> $b } @protectors;
337: &Apache::lonnet::appenv({'user.linkprotector' => join(',',@protectors)});
338: }
339: } else {
340: &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector });
341: }
342: if ($env{'user.linkproturi'}) {
343: my @proturis = split(/,/,$env{'user.linkproturi'});
344: unless(grep(/^\Q$deeplink\E$/,@proturis)) {
345: push(@proturis,$deeplink);
346: @proturis = sort @proturis;
347: &Apache::lonnet::appenv({'user.linkproturi' => join(',',@proturis)});
348: }
349: } else {
350: &Apache::lonnet::appenv({'user.linkproturi' => $deeplink});
351: }
352: } elsif ($data{'linkkey'} ne '') {
353: &Apache::lonnet::appenv({'request.linkkey' => $data{'linkkey'}});
354: if ($env{'request.linkprot'}) {
355: &Apache::lonnet::delenv('request.linkprot');
356: }
357: my $deeplink = $data{'deeplink.login'};
358: my $linkkey = $data{'linkkey'};
359: if ($env{'user.deeplinkkey'} ne '') {
360: my @linkkeys = split(/,/,$env{'user.deeplinkkey'});
361: unless (grep(/^\Q$linkkey\E$/,@linkkeys)) {
362: push(@linkkeys,$linkkey);
363: &Apache::lonnet::appenv({'user.deeplinkkey' => join(',',sort(@linkkeys))});
364: }
365: } else {
366: &Apache::lonnet::appenv({'user.deeplinkkey' => $linkkey});
367: }
368: if ($deeplink) {
369: if ($env{'user.keyedlinkuri'}) {
370: my @keyeduris = split(/,/,$env{'user.keyedlinkuri'});
371: unless (grep(/^\Q$deeplink\E$/,@keyeduris)) {
372: push(@keyeduris,$deeplink);
373: &Apache::lonnet::appenv({'user.keyedlinkuri' => join(',',sort(@keyeduris))});
374: }
375: } else {
376: &Apache::lonnet::appenv({'user.keyedlinkuri' => $deeplink});
377: }
378: }
379: }
380: if ($data{'deeplink.login'}) {
381: &Apache::lonnet::appenv({'request.deeplink.login' => $data{'deeplink.login'}});
382: }
383: if ($data{'origurl'} ne '') {
384: my $dest = $data{'origurl'};
385: if (($env{'request.deeplink.login'} eq $data{'origurl'}) &&
386: (($env{'request.linkprot'}) || ($env{'request.linkkey'} ne ''))) {
387: my %info;
388: if ($env{'request.linkprot'}) {
389: $info{'linkprot'} = $env{'request.linkprot'};
390: } elsif ($env{'request.linkkey'} ne '') {
391: $info{'linkkey'} = $env{'request.linkkey'};
392: }
393: $info{'origurl'} = $data{'origurl'};
394: if ($checklaunch) {
395: $info{'checklaunch'} = 1;
396: }
397: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'link');
398: unless (($token eq 'con_lost') || ($token eq 'refused') ||
399: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
400: $dest .= (($dest =~ /\?/) ? '&' : '?') . 'ttoken='.$token;
401: }
402: }
403: $r->internal_redirect($dest);
404: } elsif ($env{'request.course.id'}) {
405: $r->internal_redirect('/adm/navmaps');
406: } else {
407: $r->internal_redirect('/adm/roles');
408: }
409: } else {
410: my $desturl = '/adm/roles';
411: if ($data{'origurl'} ne '') {
412: $desturl = $data{'origurl'};
413: if ($data{'linkprot'}) {
414: my ($linkprotector,$linkuri) = split(/:/,$data{'linkprot'},2);
415: if ($linkprotector) {
416: if (ref($extra_env) eq 'HASH') {
417: $extra_env->{'user.linkprotector'} = $linkprotector;
418: $extra_env->{'user.linkproturi'} = $linkuri;
419: $extra_env->{'request.linkprot'} = $data{'linkprot'};
420: } else {
421: $extra_env = {'user.linkprotector' => $linkprotector,
422: 'user.linkproturi' => $linkuri,
423: 'request.linkprot' => $data{'linkprot'}};
424: }
425: }
426: } elsif ($data{'linkkey'}) {
427: if (ref($extra_env) eq 'HASH') {
428: $extra_env->{'user.deeplinkkey'} = $data{'linkkey'};
429: $extra_env->{'user.keyedlinkuri'} = $data{'deeplink.login'};
430: $extra_env->{'request.linkkey'} = $data{'linkkey'};
431: } else {
432: $extra_env = {'user.deeplinkkey' => $data{'linkkey'},
433: 'user.keyedlinkuri' => $data{'deeplink.login'},
434: 'request.linkkey' => $data{'linkkey'}};
435: }
436: }
437: if ($data{'deeplink.login'}) {
438: if (ref($extra_env) eq 'HASH') {
439: $extra_env->{'request.deeplink.login'} = $data{'deeplink.login'};
440: } else {
441: $extra_env = {'request.deeplink.login' => $data{'deeplink.login'}};
442: }
443: }
444: }
445: &Apache::lonauth::success($r,$data{'username'},$data{'domain'},
446: $home,$desturl,$extra_env,\%form,'',
447: $expirepub);
448: }
449: return OK;
450: }
451:
452: my $next_url='/adm/roles?selectrole=1&'.&escape($data{'role'}).'=1';
453: if ($data{'origurl'} ne '') {
454: $next_url .= '&orgurl='.&escape($data{'origurl'});
455: }
456: if ($data{'deeplink.login'}) {
457: if (ref($extra_env) eq 'HASH') {
458: $extra_env->{'request.deeplink.login'} = $data{'deeplink.login'};
459: } else {
460: $extra_env = {'request.deeplink.login' => $data{'deeplink.login'}};
461: }
462: if ($data{'linkprot'}) {
463: $extra_env->{'request.linkprot'} = $data{'linkprot'};
464: } elsif ($data{'linkkey'} ne '') {
465: $extra_env->{'request.linkkey'} = $data{'linkkey'};
466: }
467: }
468: &Apache::lonauth::success($r,$data{'username'},$data{'domain'},$home,
469: $next_url,$extra_env,\%form,$cid);
470: return OK;
471: }
472:
473: 1;
474: __END__
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