File:
[LON-CAPA] /
loncom /
auth /
migrateuser.pm
Revision
1.61:
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Sat Jun 18 02:10:18 2022 UTC (23 months, 2 weeks ago) by
raeburn
Branches:
MAIN
CVS tags:
HEAD
- Bug 6907
For LTI-protected deep links in which username is included in launch payload
compare username in payload with username for any existing LON-CAPA session
in current web browser and expire old session, if different user.
1: # The LearningOnline Network
2: # Starts a user off based of an existing token.
3: #
4: # $Id: migrateuser.pm,v 1.61 2022/06/18 02:10:18 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::loncommon;
37: use Apache::lonlocal;
38: use Apache::lonlogin();
39: use Apache::ltiauth;
40: use Apache::switchserver;
41: use CGI::Cookie;
42:
43: sub goto_login {
44: my ($r,$domain,$data) = @_;
45: if ((ref($data) eq 'HASH') && ($data->{'lti.login'})) {
46: &Apache::ltiauth::invalid_request($r,'22');
47: } else {
48: &Apache::loncommon::content_type($r,'text/html');
49: $r->send_http_header;
50: my $url = '/adm/login';
51: if ($domain) {
52: $url .= '?domain='.$domain;
53: }
54: $r->print(&Apache::loncommon::start_page('Going to login',undef,
55: {'redirect' => [0,$url],}).
56: '<h1>'.&mt('One moment please...').'</h1>'.
57: '<p>'.&mt('Transferring to login page.').'</p>'.
58: &Apache::loncommon::end_page());
59: }
60: return OK;
61: }
62:
63: sub sso_check {
64: my ($data) = @_;
65: my %extra_env;
66: if (ref($data) eq 'HASH') {
67: if ($data->{'sso.login'}) {
68: $extra_env{'request.sso.login'} = $data->{'sso.login'};
69: }
70: if ($data->{'sso.reloginserver'}) {
71: $extra_env{'request.sso.reloginserver'} =
72: $data->{'sso.reloginserver'};
73: }
74: }
75: return \%extra_env;
76: }
77:
78: sub lti_check {
79: my ($data) = @_;
80: my %lti_env;
81: if (ref($data) eq 'HASH') {
82: if ($data->{'lti.login'}) {
83: $lti_env{'request.lti.login'} = $data->{'lti.login'};
84: if ($data->{'lti.reqcrs'}) {
85: $lti_env{'request.lti.reqcrs'} = $data->{'lti.reqcrs'};
86: }
87: if ($data->{'lti.reqrole'}) {
88: $lti_env{'request.lti.reqrole'} = $data->{'lti.reqrole'};
89: }
90: if ($data->{'lti.selfenrollrole'}) {
91: $lti_env{'request.lti.selfenrollrole'} = $data->{'lti.selfenrollrole'};
92: }
93: if ($data->{'lti.uri'}) {
94: $lti_env{'request.lti.uri'} = $data->{'lti.uri'};
95: }
96: if ($data->{'lti.target'}) {
97: $lti_env{'request.lti.target'} = $data->{'lti.target'};
98: }
99: if ($data->{'lti.sourcecrs'}) {
100: $lti_env{'request.lti.sourcecrs'} = $data->{'lti.sourcecrs'};
101: }
102: }
103: if ($data->{'lti.passbackid'}) {
104: $lti_env{'request.lti.passbackid'} = $data->{'lti.passbackid'};
105: }
106: if ($data->{'lti.passbackurl'}) {
107: $lti_env{'request.lti.passbackurl'} = $data->{'lti.passbackurl'};
108: }
109: if ($data->{'lti.rosterid'}) {
110: $lti_env{'request.lti.rosterid'} = $data->{'lti.rosterid'};
111: }
112: if ($data->{'lti.rosterurl'}) {
113: $lti_env{'request.lti.rosterurl'} = $data->{'lti.rosterurl'};
114: }
115: }
116: return \%lti_env;
117: }
118:
119: sub canhost {
120: my ($uname,$udom,$lonhost,$loncaparev) = @_;
121: my $canhost;
122: if (&Apache::lonnet::is_library($lonhost)) {
123: my @possdoms = &Apache::lonnet::current_machine_domains();
124: my %roleshash = &Apache::lonnet::get_my_roles($uname,$udom,'userroles','',['ca','aa'],\@possdoms);
125: if (keys(%roleshash)) {
126: foreach my $key (keys(%roleshash)) {
127: my $audom = (split(/:/,$key))[1];
128: if ((&Apache::lonnet::will_trust('othcoau',$udom,$audom)) &&
129: (&Apache::lonnet::will_trust('coaurem',$audom,$udom))) {
130: $canhost = 1;
131: last;
132: }
133: }
134: }
135: }
136: unless ($canhost) {
137: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
138: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
139: my @intdoms;
140: my $internet_names = &Apache::lonnet::get_internet_names($lonhost);
141: if (ref($internet_names) eq 'ARRAY') {
142: @intdoms = @{$internet_names};
143: }
144: if ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {
145: $canhost = 1;
146: } else {
147: my $hostname = &Apache::lonnet::hostname($lonhost);
148: my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname);
149: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
150: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
151: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
152: $canhost =
153: &Apache::lonnet::can_host_session($udom,$lonhost,$loncaparev,
154: $udomdefaults{'remotesessions'},
155: $defdomdefaults{'hostedsessions'});
156: }
157: }
158: return $canhost;
159: }
160:
161: sub ip_changed {
162: my ($r,$udom,$camefrom,$idsref,$dataref) = @_;
163: &Apache::loncommon::content_type($r,'text/html');
164: $r->send_http_header;
165: if (ref($dataref) eq 'HASH') {
166: my $title = 'LON-CAPA Session redirected';
167: my $message = &mt('Your internet address has changed since you logged in.');
168: my $rule_in_effect;
169: if ($dataref->{'balancer'}) {
170: my $baldom = &Apache::lonnet::host_domain($camefrom);
171: my $balprimaryid = &Apache::lonnet::domain($baldom,'primary');
172: my $balintdom = &Apache::lonnet::internet_dom($balprimaryid);
173: my $uprimaryid = &Apache::lonnet::domain($udom,'primary');
174: my $uintdom = &Apache::lonnet::internet_dom($uprimaryid);
175: my $dom_in_use;
176: if (($uintdom ne '') && ($uintdom eq $balintdom)) {
177: $dom_in_use = $udom;
178: } else {
179: $dom_in_use = $baldom;
180: }
181: my ($result,$cached)=&Apache::lonnet::is_cached_new('loadbalancing',$dom_in_use);
182: unless (defined($cached)) {
183: my $cachetime = 60*60*24;
184: my %domconfig =
185: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
186: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
187: $result = &Apache::lonnet::do_cache_new('loadbalancing',$dom_in_use,
188: $domconfig{'loadbalancing'},$cachetime);
189: }
190: }
191: if (ref($result) eq 'HASH') {
192: (undef,my $currtargets,my $currrules) =
193: &Apache::lonnet::check_balancer_result($result,$dataref->{'server'});
194: if (ref($currrules) eq 'HASH') {
195: if ($dataref->{'sso.login'}) {
196: if ($currrules->{'_LC_ipchangesso'} ne '') {
197: $rule_in_effect = $currrules->{'_LC_ipchangesso'};
198: }
199: } else {
200: if ($currrules->{'_LC_ipchange'} ne '') {
201: $rule_in_effect = $currrules->{'_LC_ipchange'};
202: }
203: }
204: }
205: }
206: }
207: my $url;
208: my $lonhost= $r->dir_config('lonHostID');
209: my $switchto = $lonhost;
210: if ($rule_in_effect ne 'offloadedto') {
211: my ($hosthere,@ids);
212: if (ref($idsref) eq 'ARRAY') {
213: @ids=@{$idsref};
214: }
215: unless ($rule_in_effect eq 'balancer') {
216: if (grep(/^\Q$rule_in_effect\E$/,@ids)) {
217: $hosthere = 1;
218: }
219: }
220: unless ($hosthere) {
221: if ($dataref->{'role'}) {
222: my ($adom,$aname);
223: if ($dataref->{'role'} =~ m{^au\./($match_domain)/$}) {
224: $adom = $1;
225: $aname = $dataref->{'username'};
226: } elsif ($dataref->{'role'} =~ m{^(?:ca|aa)\./($match_domain)/($match_username)$}) {
227: $adom = $1;
228: $aname = $2;
229: }
230: if ($adom ne '' && $aname ne '') {
231: my $ahome = &Apache::lonnet::homeserver($aname,$adom);
232: unless ($ahome eq 'no_host') {
233: if ($ahome && grep(/^\Q$ahome\E$/,@ids)) {
234: $hosthere = 1;
235: }
236: }
237: }
238: }
239: }
240: unless ($hosthere) {
241: my $hostname;
242: if ($rule_in_effect eq 'balancer') {
243: $hostname = &Apache::lonnet::hostname($dataref->{'server'});
244: if ($hostname) {
245: $switchto = $dataref->{'server'};
246: }
247: } else {
248: $hostname = &Apache::lonnet::hostname($rule_in_effect);
249: if ($hostname) {
250: $switchto = $rule_in_effect;
251: }
252: }
253: if ($hostname) {
254: my $protocol = $Apache::lonnet::protocol{$switchto};
255: $protocol = 'http' if ($protocol ne 'https');
256: my $alias = &Apache::lonnet::use_proxy_alias($r,$switchto);
257: $hostname = $alias if ($alias ne '');
258: $url = $protocol.'://'.$hostname;
259: if ($rule_in_effect eq 'balancer') {
260: $message .= '<br />'.
261: &mt('As a result, your LON-CAPA session is being redirected to the server where you originally logged in.');
262: } else {
263: $message .= '<br />'.
264: &mt('As a result, your LON-CAPA session is being redirected.');
265: }
266: }
267: }
268: unless ($hosthere) {
269: if (($dataref->{'balancer'}) && ($dataref->{'balcookie'})) {
270: &Apache::lonnet::delbalcookie($dataref->{'balcookie'},$dataref->{'balancer'});
271: }
272: }
273: }
274: if ($dataref->{'sso.login'}) {
275: $url .= '/adm/roles';
276: } else {
277: $url .= '/adm/login';
278: if ($udom) {
279: $url .= '?domain='.$udom;
280: }
281: $message .= '<br />'.&mt('You will need to provide your password one more time.');
282: }
283: my %info= (
284: 'domain' => $udom,
285: 'username' => $dataref->{'username'},
286: 'sessionserver' => $lonhost,
287: );
288: my @names = ('origurl','symb','role','linkprotuser','linkprot','linkkey');
289: foreach my $name (@names) {
290: if ($dataref->{$name} ne '') {
291: $info{$name} = $dataref->{$name};
292: }
293: }
294: my $iptoken = &Apache::lonnet::tmpput(\%info,$switchto,'link');
295: unless ($iptoken eq 'conlost') {
296: $url .= (($url =~ /\?/) ? '&' : '?') . 'iptoken='.$iptoken;
297: }
298: $r->print(&Apache::loncommon::start_page($title,undef,
299: {'redirect' =>
300: [2,$url],}).
301: '<h1>'.&mt('One moment please...').'</h1>'.
302: '<p class="LC_warning">'.$message.'</p>'.
303: &Apache::loncommon::end_page());
304: } else {
305: return &goto_login($r);
306: }
307: return OK;
308: }
309:
310: sub logout {
311: my ($r,$ip,$handle,$data,$lti_env,$linkprot_info) = @_;
312: my $lonidsdir=$r->dir_config('lonIDsDir');
313: if (unlink("$lonidsdir/$handle.id")) {
314: if (($env{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) &&
315: (-l "$lonidsdir/$env{'user.linkedenv'}.id") &&
316: (readlink("$lonidsdir/$env{'user.linkedenv'}.id") eq "$lonidsdir/$handle.id")) {
317: unlink("$lonidsdir/$env{'user.linkedenv'}.id");
318: }
319: }
320: my %temp=('logout' => time);
321: &Apache::lonnet::put('email_status',\%temp);
322: &Apache::lonnet::log($env{'user.domain'},
323: $env{'user.name'},
324: $env{'user.home'},
325: "Logout $ip");
326:
327: &Apache::loncommon::content_type($r,'text/html');
328:
329: #expire the cookies
330: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
331: foreach my $name (keys(%cookies)) {
332: next unless ($name =~ /^lon(|S|Link|Pub)ID$/);
333: my $c = new CGI::Cookie(-name => $name,
334: -value => '',
335: -expires => '-10y',);
336: $r->headers_out->add('Set-cookie' => $c);
337: }
338: my $lonhost = $r->dir_config('lonHostID');
339: my ($url,$token,%info,%user_info);
340: if (ref($data) eq 'HASH') {
341: %user_info=('ip' => $ip,
342: 'domain' => $data->{'domain'},
343: 'username' => $data->{'username'},
344: 'home' => $data->{'home'},
345: 'role' => $data->{'role'},
346: 'origurl' => $data->{'origurl'},
347: 'symb' => $data->{'symb'},
348: 'server' => $lonhost);
349: }
350: if (ref($linkprot_info) eq 'HASH') {
351: if ($linkprot_info->{'linkprotuser'} ne '') {
352: $token = &Apache::lonnet::tmpput($linkprot_info,$lonhost);
353: $url = '/adm/login?ltoken='.$token;
354: } else {
355: foreach my $key (keys(%user_info)) {
356: if ($user_info{$key} eq '') {
357: delete($user_info{$key});
358: }
359: }
360: %info = (%user_info,%{$linkprot_info});
361: $token = &Apache::lonnet::tmpput(\%info,$lonhost);
362: $url = '/adm/migrateuser?token='.$token;
363: }
364: } else {
365: my %lti_info;
366: if (ref($lti_env) eq 'HASH') {
367: foreach my $key (sort(keys(%{$lti_env}))) {
368: if ($key =~ /^request\.(.+)$/) {
369: $lti_info{$1} = $lti_env->{$key};
370: }
371: }
372: }
373: %info = (%user_info,%lti_info);
374: $token = &Apache::lonnet::tmpput(\%info,$lonhost);
375: $url = '/adm/migrateuser?token='.$token;
376: }
377: $r->send_http_header;
378: $r->print(
379: &Apache::loncommon::start_page('Updating Session ...',undef,
380: {'redirect' => [0.1,$url],
381: 'only_body' => 1,}).
382: &Apache::loncommon::end_page());
383: if ($env{'request.balancercookie'}) {
384: my ($balancer,$cookie) = split(/:/,$env{'request.balancercookie'});
385: if ((&Apache::lonnet::hostname($balancer)) && ($cookie =~ /^[a-f0-9]{32}$/)) {
386: $cookie = $env{'user.domain'}.'_'.$env{'user.name'}.'_'.$cookie;
387: &Apache::lonnet::delbalcookie($cookie,$balancer);
388: }
389: }
390: $r->register_cleanup(\&flush_course_logs);
391: return;
392: }
393:
394: sub conlost_userhome {
395: my ($r,$idsref,$dataref) = @_;
396: return unless ((ref($idsref) eq 'ARRAY') && (ref($dataref) eq 'HASH'));
397: my @ids = @{$idsref};
398: my %data = %{$dataref};
399: my ($lonhost,$lowest_load,$otherserver,$is_balancer,%conlost,%posstargets);
400: $lonhost = $r->dir_config('lonHostID');
401: if (grep(/^\Q$lonhost\E$/,split(/,/,$data{'dom_balancers'}))) {
402: $is_balancer = 1;
403: }
404: $lowest_load = 30000;
405: if ($data{'conlost'} ne '') {
406: map { $conlost{$_} = 1; } split(/,/,$data{'conlost'});
407: }
408: if ($data{'loncfail'}) {
409: if ($lonhost ne $data{'from_balancer'}) {
410: my ($is_balancer,$posshost,$setcookie,$offloadto,$dom_balancers) =
411: &Apache::lonnet::check_loadbalancing($data{'username'},$data{'domain'});
412: if ($is_balancer) {
413: if (ref($offloadto) eq 'HASH') {
414: $data{'offloadto'} = '';
415: foreach my $key (keys(%{$offloadto})) {
416: if (ref($offloadto->{$key}) eq 'ARRAY') {
417: $data{'offloadto'} .= $key.'='.join(',',@{$offloadto->{$key}}).'&';
418: }
419: }
420: $data{'offloadto'} =~ s/\&$//;
421: } elsif (ref($offloadto) eq 'ARRAY') {
422: $data{'offloadto'} = join(',',@{$offloadto});
423: }
424: }
425: }
426: } else {
427: $conlost{$lonhost} = 1;
428: $data{'conlost'} = join(',',sort(keys(%conlost)));
429: }
430: if ($data{'offloadto'} =~ /\&/) {
431: foreach my $item (split(/\&/,$data{'offloadto'})) {
432: my ($type,$targets) = split(/\=/,$item);
433: @{$posstargets{$type}} = split(/,/,$targets);
434: }
435: } elsif ($data{'offloadto'} =~ /=/) {
436: my ($type,$targets) = split(/\=/,$data{'offloadto'});
437: @{$posstargets{$type}} = split(/,/,$targets);
438: } else {
439: @{$posstargets{'default'}} = split(/,/,$data{'offloadto'});
440: }
441: if (ref($posstargets{'primary'}) eq 'ARRAY') {
442: foreach my $try_server (@{$posstargets{'primary'}}) {
443: next if ($conlost{$try_server});
444: next if ((grep(/^\Q$try_server\E$/,@ids)) && !$data{'loncfail'});
445: ($otherserver,$lowest_load) =
446: &Apache::lonnet::compare_server_load($try_server,
447: $otherserver,
448: $lowest_load);
449: }
450: }
451: my $found_server = ($otherserver ne '' && $lowest_load < 100);
452: if (!$found_server) {
453: if (ref($posstargets{'default'}) eq 'ARRAY') {
454: foreach my $try_server (@{$posstargets{'default'}}) {
455: next if ($conlost{$try_server});
456: next if ((grep(/^\Q$try_server\E$/,@ids)) && !$data{'loncfail'});
457: ($otherserver,$lowest_load) =
458: &Apache::lonnet::compare_server_load($try_server,
459: $otherserver,
460: $lowest_load);
461: }
462: }
463: }
464: if ($otherserver ne '') {
465: my $switchto = &Apache::lonnet::hostname($otherserver);
466: if ($switchto ne '') {
467: $data{'server'} = $lonhost;
468: if ($data{'loncfail'}) {
469: delete($data{'loncfail'});
470: }
471: if (grep(/^\Q$otherserver\E$/,split(/,/,$data{'dom_balancers'}))) {
472: $data{'noloadbalance'} = $otherserver;
473: }
474: &do_server_switch($r,$otherserver,$switchto,$is_balancer,\%data);
475: return $otherserver;
476: } else {
477: #FIXME Contents of $data{offloadto} contains invalid hostID.
478: }
479: } else {
480: my (%poss_balancers,%tried_balancers);
481: map { $poss_balancers{$_} = 1; } split(/,/,$data{'dom_balancers'});
482: map { $tried_balancers{$_} = 1; } split(/,/,$data{'tried_balancers'});
483: if (keys(%poss_balancers)) {
484: foreach my $try_server (sort(keys(%poss_balancers))) {
485: next if (grep(/^\Q$try_server\E$/,@ids));
486: next if (($data{'loncfail'}) && ($tried_balancers{$try_server}));
487: my $alreadytried;
488: foreach my $key (keys(%posstargets)) {
489: if ((ref($posstargets{$key}) eq 'ARRAY') &&
490: (grep(/^\Q$try_server\E$/,@{$posstargets{$key}}))) {
491: $alreadytried = 1;
492: last;
493: }
494: }
495: unless ($alreadytried) {
496: if (&Apache::lonnet::reply('ping',$try_server) eq $try_server) {
497: $otherserver = $try_server;
498: last;
499: }
500: }
501: }
502: }
503: if ($otherserver ne '') {
504: my $switchto = &Apache::lonnet::hostname($otherserver);
505: if ($switchto ne '') {
506: $data{'server'} = $lonhost;
507: $data{'loncfail'} = $lonhost;
508: $tried_balancers{$otherserver} = 1;
509: $data{'tried_balancers'} = join(',',sort(keys(%tried_balancers)));
510: &do_server_switch($r,$otherserver,$switchto,$is_balancer,\%data);
511: return $otherserver;
512: } else {
513: #FIXME Contents of $data{'dom_balancers'} contains invalid hostID.
514: }
515: } else {
516: if ($data{'loncfail'}) {
517: #FIXME Nowhere to go.
518: } else {
519: # FIXME Send back to a balancer (no token); different balancer if this is a balancer.
520: # Send command to balancer to exclude this host using http instead on lonc/lond
521: }
522: }
523: }
524: return;
525: }
526:
527: sub do_server_switch {
528: my ($r,$otherserver,$switchto,$is_balancer,$dataref) = @_;
529: if (ref($dataref) eq 'HASH') {
530: my $domain = $dataref->{'domain'};
531: my $username = $dataref->{'username'};
532: # If this is a balancer set a balancer cookie unless browser already sent
533: # LON-CAPA load balancer cookie which points at the target server.
534: if ($is_balancer) {
535: my $newcookieid;
536: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r,1);
537: unless (($found_server eq $otherserver) &&
538: ($balancer_cookie =~ /^\Q$domain\E_\Q$username\E_/)) {
539: $newcookieid =
540: &Apache::switchserver::balancer_cookieid($r,$otherserver,$username,$domain);
541: if ($newcookieid) {
542: $dataref->{'balcookie'} = $newcookieid;
543: }
544: }
545: }
546: my $token = &Apache::lonnet::tmpput($dataref,$otherserver);
547: my $protocol = $Apache::lonnet::protocol{$otherserver};
548: $protocol = 'http' if ($protocol ne 'https');
549: my $url = $protocol.'://'.$switchto.'/adm/login?domain='.$domain.
550: '&username='.$username.'&token='.$token;
551: $r->send_http_header;
552: $r->print(
553: &Apache::loncommon::start_page('Switching Server ...',undef,
554: {'redirect' => [0.1,$url]}).
555: &Apache::loncommon::end_page());
556: }
557: return;
558: }
559:
560: sub log_switch {
561: my ($r,$data,$lti_env,$ip) = @_;
562: my $lonhost = $r->dir_config('lonHostID');
563: return unless ((ref($data) eq 'HASH') && (ref($lti_env) eq 'HASH'));
564: my $now = time;
565: my %temp=('switchserver' => $now.':'.$lonhost,$data->{'role'});
566: &Apache::lonnet::put('email_status',\%temp);
567: my $logmsg = "Switch Server to $lonhost";
568: if ($data->{'role'}) {
569: $logmsg .= " with role: ".$data->{'role'};
570: } elsif (($lti_env->{'reqcrs'}) && ($lti_env->{'reqrole'} eq 'cc')) {
571: $logmsg .= " to create new LTI course";
572: } elsif ($lti_env->{'selfenrollrole'}) {
573: $logmsg .= " to selfenroll with role: ".$lti_env->{'selfenrollrole'};
574: } else {
575: $logmsg .= " (no role)";
576: }
577: $logmsg .= ' '.$ip;
578: &Apache::lonnet::log($data->{'domain'},$data->{'username'},$data->{'home'},$logmsg);
579: }
580:
581: sub flush_course_logs {
582: &Apache::lonnet::flushcourselogs();
583: return OK;
584: }
585:
586: sub handler {
587: my ($r) = @_;
588:
589: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['token']);
590: my %data = &Apache::lonnet::tmpget($env{'form.token'});
591: if (keys(%data) == 0) {
592: return &goto_login($r);
593: }
594: my $delete = &Apache::lonnet::tmpdel($env{'form.token'});
595:
596: &Apache::lonlocal::get_language_handle($r);
597:
598: if ($delete ne 'ok') {
599: return &goto_login($r,undef,\%data);
600: }
601:
602: if (!defined($data{'username'}) || !defined($data{'domain'})) {
603: return &goto_login($r,undef,\%data);
604: }
605: my ($home,@ids);
606: @ids=&Apache::lonnet::current_machine_ids();
607: my $ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP);
608: if ($data{'ip'} ne $ip) {
609: &Apache::lonnet::logthis('IP change when session migration requested -- was: '.
610: $data{'ip'}.'; now: '.$ip.' for '.$data{'username'}.':'.$data{'domain'});
611: return &ip_changed($r,$data{'domain'},$data{'server'},\@ids,\%data);
612: }
613: if ($data{'loncfail'}) {
614: &Apache::lonnet::logthis('Returned from '.$data{'server'}.' -- no connection to library node or other access node(s)');
615: my $otherserver = &conlost_userhome($r,\@ids,\%data);
616: if ($otherserver ne '') {
617: &Apache::lonnet::logthis("Switching to $otherserver");
618: }
619: return OK;
620: } else {
621: $home=&Apache::lonnet::homeserver($data{'username'},$data{'domain'});
622: if ($home eq 'no_host') {
623: if (($data{'home'} ne '') && (&Apache::lonnet::hostname($data{'home'}))) {
624: &Apache::lonnet::reconlonc($data{'home'});
625: $home=&Apache::lonnet::homeserver($data{'username'},$data{'domain'});
626: if ($home eq 'no_host') {
627: unless (grep(/^\Q$data{'home'}\E$/,@ids)) {
628: if (&Apache::lonnet::reply('ping',$data{'home'}) eq 'con_lost') {
629: my $otherserver = &conlost_userhome($r,\@ids,\%data);
630: if ($otherserver ne '') {
631: &Apache::lonnet::logthis("No connection to home server ($data{'home'}) for $data{'username'}:$data{'domain'}. Switching to $otherserver");
632: }
633: return OK;
634: }
635: }
636: }
637: }
638: }
639: }
640:
641: my $udom;
642: if (&Apache::lonnet::domain($data{'domain'})) {
643: $udom=$data{'domain'};
644: }
645: if ($home eq 'no_host') { return &goto_login($r,$udom,\%data); }
646: if (&Apache::lonnet::hostname($home) eq '') { return &goto_login($r,$udom,\%data); }
647:
648: unless (grep(/^\Q$home\E$/,@ids)) {
649: my $lonhost = $r->dir_config('lonHostID');
650: my $loncaparev = $r->dir_config('lonVersion');
651: unless (&canhost($data{'username'},$data{'domain'},$lonhost,$loncaparev)) {
652: return &goto_login($r,$udom,\%data);
653: }
654: }
655:
656: my $rolemsg;
657: if ($data{'role'}) {
658: $rolemsg = "role: $data{'role'}";
659: } else {
660: $rolemsg = '(no role)';
661: }
662:
663: &Apache::lonnet::logthis("Allowing access for $data{'username'}:$data{'domain'} $rolemsg");
664:
665: my $sso_env = &sso_check(\%data);
666: my $lti_env = <i_check(\%data);
667:
668: my $extra_env;
669: if ((ref($sso_env) eq 'HASH') && (keys(%{$sso_env}))) {
670: $extra_env = $sso_env;
671: } elsif ((ref($lti_env) eq 'HASH') && (keys(%{$lti_env}))) {
672: $extra_env = $lti_env;
673: }
674: if (($data{'balancer'}) && ($data{'server'}) && ($data{'balcookie'})) {
675: if (ref($extra_env) eq 'HASH') {
676: $extra_env->{'request.balancercookie'} = $data{'server'}.':'.$data{'balcookie'};
677: } else {
678: $extra_env = { 'request.balancercookie' => $data{'server'}.':'.$data{'balcookie'} };
679: }
680: } elsif (($data{'server'}) && ($data{'otherbalcookie'})) {
681: my ($balancer,$balcookie) = split(/:/,$data{'otherbalcookie'});
682: if (defined(&Apache::lonnet::hostname($balancer)) && $balcookie =~ /^[a-f0-9]{32}$/) {
683: my $baldom = &Apache::lonnet::host_domain($balancer);
684: if (&Apache::lonnet::shared_institution($baldom)) {
685: my $cookieid = join('_',$udom,$data{'username'},$balcookie);
686: &Apache::lonnet::updatebalcookie($cookieid,$balancer,$data{'server'});
687: if (ref($extra_env) eq 'HASH') {
688: $extra_env->{'request.balancercookie'} = $data{'otherbalcookie'};
689: } else {
690: $extra_env = { 'request.balancercookie' => $data{'otherbalcookie'} };
691: }
692: }
693: }
694: }
695:
696: if (($data{'conlost'}) && ($data{'server'})) {
697: my @conlosts = split(/,/,$data{'conlost'});
698: my $switchfrom = $data{'server'};
699: if (@conlosts) {
700: if (grep(/^\Q$switchfrom\E$/,@conlosts)) {
701: &log_switch($r,\%data,$extra_env,$ip);
702: }
703: }
704: }
705:
706: my (%form,$cid);
707: if ($data{'symb'} ne '') {
708: $form{'symb'} = $data{'symb'};
709: }
710: if ($data{'iptoken'} ne '') {
711: $form{'iptoken'} = $data{'iptoken'};
712: }
713: if ($data{'noloadbalance'} ne '') {
714: $form{'noloadbalance'} = $data{'noloadbalance'};
715: }
716: if ($data{'role'}) {
717: if ($data{'role'} =~ m{\./($match_domain)/($match_courseid)(?:/\w+|$)}) {
718: unless (&Apache::lonnet::homeserver($2,$1) eq 'no_host') {
719: $cid = $1.'_'.$2;
720: }
721: }
722: } else {
723: my ($handle,$expirepub);
724: $handle = &Apache::lonnet::check_for_valid_session($r);
725:
726: # For "public user" - remove any existing "public" cookie so actual user is logged in.
727: if ($handle) {
728: if ($handle=~/^publicuser\_/) {
729: my $lonidsdir=$r->dir_config('lonIDsDir');
730: if ($lonidsdir ne '') {
731: unlink("$lonidsdir/$handle.id");
732: }
733: undef($handle);
734: $expirepub = 1;
735: }
736: }
737: if ($handle) {
738: &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
739: $handle);
740: my $checklaunch;
741: if ($data{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
742: unless ($env{'request.linkprot'} eq $data{'linkprot'}) {
743: $checklaunch = 1;
744: }
745: unless ($env{'request.linkkey'} eq $data{'linkkey'}) {
746: $checklaunch = 1;
747: }
748: unless ($env{'request.deeplink.login'} eq $data{'deeplink.login'}) {
749: $checklaunch = 1;
750: }
751: }
752: if ($data{'linkprot'} ne '') {
753: if (($env{'user.name'} ne $data{'username'}) ||
754: ($env{'user.domain'} ne $data{'domain'})) {
755: my %linkprot_env;
756: foreach my $item ('linkprot','deeplink.login') {
757: if ($data{$item}) {
758: $linkprot_env{$item} = $data{$item};
759: }
760: }
761: &logout($r,$ip,$handle,\%data,undef,\%linkprot_env);
762: return OK;
763: }
764: &Apache::lonnet::appenv({'request.linkprot' => $data{'linkprot'}});
765: if ($env{'request.linkkey'}) {
766: &Apache::lonnet::delenv('request.linkkey');
767: }
768: my ($linkprotector,$deeplink) = split(/:/,$data{'linkprot'},2);
769: if ($env{'user.linkprotector'}) {
770: my @protectors = split(/,/,$env{'user.linkprotector'});
771: unless (grep(/^\Q$linkprotector\E$/,@protectors)) {
772: push(@protectors,$linkprotector);
773: @protectors = sort { $a <=> $b } @protectors;
774: &Apache::lonnet::appenv({'user.linkprotector' => join(',',@protectors)});
775: }
776: } else {
777: &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector });
778: }
779: if ($env{'user.linkproturi'}) {
780: my @proturis = split(/,/,$env{'user.linkproturi'});
781: unless(grep(/^\Q$deeplink\E$/,@proturis)) {
782: push(@proturis,$deeplink);
783: @proturis = sort @proturis;
784: &Apache::lonnet::appenv({'user.linkproturi' => join(',',@proturis)});
785: }
786: } else {
787: &Apache::lonnet::appenv({'user.linkproturi' => $deeplink});
788: }
789: } elsif ($data{'linkkey'} ne '') {
790: &Apache::lonnet::appenv({'request.linkkey' => $data{'linkkey'}});
791: if ($env{'request.linkprot'}) {
792: &Apache::lonnet::delenv('request.linkprot');
793: }
794: my $deeplink = $data{'deeplink.login'};
795: my $linkkey = $data{'linkkey'};
796: if ($env{'user.deeplinkkey'} ne '') {
797: my @linkkeys = split(/,/,$env{'user.deeplinkkey'});
798: unless (grep(/^\Q$linkkey\E$/,@linkkeys)) {
799: push(@linkkeys,$linkkey);
800: &Apache::lonnet::appenv({'user.deeplinkkey' => join(',',sort(@linkkeys))});
801: }
802: } else {
803: &Apache::lonnet::appenv({'user.deeplinkkey' => $linkkey});
804: }
805: if ($deeplink) {
806: if ($env{'user.keyedlinkuri'}) {
807: my @keyeduris = split(/,/,$env{'user.keyedlinkuri'});
808: unless (grep(/^\Q$deeplink\E$/,@keyeduris)) {
809: push(@keyeduris,$deeplink);
810: &Apache::lonnet::appenv({'user.keyedlinkuri' => join(',',sort(@keyeduris))});
811: }
812: } else {
813: &Apache::lonnet::appenv({'user.keyedlinkuri' => $deeplink});
814: }
815: }
816: }
817: if ($data{'deeplink.login'}) {
818: &Apache::lonnet::appenv({'request.deeplink.login' => $data{'deeplink.login'}});
819: }
820: if ($data{'lti.login'}) {
821: my $needslogout;
822: if ($env{'request.lti.login'}) {
823: if (($env{'user.name'} ne $data{'username'}) ||
824: ($env{'user.domain'} ne $data{'domain'})) {
825: $needslogout = 1;
826: }
827: } else {
828: $needslogout = 1;
829: }
830: # If access is via LTI, and user already has a non-LTI session cookie
831: # (and session) or has an LTI session cookie for a different username,
832: # logout the existing session, and start a new one
833: if ($needslogout) {
834: &logout($r,$ip,$handle,\%data,$lti_env);
835: } elsif (($data{'lti.reqcrs'}) && ($data{'lti.reqrole'} eq 'cc')) {
836: $form{'lti.reqcrs'} = $data{'lti.reqcrs'};
837: $form{'lti.reqrole'} = $data{'lti.reqrole'};
838: $form{'lti.sourcecrs'} = $data{'lti.sourcecrs'};
839: $form{'lti.uri'} = $data{'lti.uri'};
840: if ($data{'lti.passbackid'}) {
841: $form{'lti.passbackid'} = $data{'lti.passbackid'};
842: }
843: if ($data{'lti.passbackurl'}) {
844: $form{'lti.passbackurl'} = $data{'lti.passbackurl'};
845: }
846: if ($data{'lti.rosterid'}) {
847: $form{'lti.rosterid'} = $data{'lti.rosterid'};
848: }
849: if ($data{'lti.rosterurl'}) {
850: $form{'lti.rosterurl'} = $data{'lti.rosterurl'};
851: }
852: if ($data{'lti.target'}) {
853: $form{'lti.target'} = $data{'lti.target'};
854: }
855: &Apache::loncommon::content_type($r,'text/html');
856: $r->send_http_header;
857: &Apache::ltiauth::lti_reqcrs($r,$data{'domain'},\%form,$data{'username'},$data{'domain'});
858: } else {
859: if (ref($lti_env) eq 'HASH') {
860: delete($lti_env->{'reqcrs'});
861: delete($lti_env->{'reqrole'});
862: delete($lti_env->{'selfenrollrole'});
863: }
864: if ($data{'lti.selfenrollrole'}) {
865: if (&Apache::ltiauth::lti_enroll($data{'username'},$data{'domain'},
866: $data{'lti.selfenrollrole'}) eq 'ok') {
867: my $url = '/adm/roles?selectrole=1&'.
868: &escape($data{'lti.selfenrollrole'}).'=1';
869: if ($data{'origurl'} =~ m{/default_\d+\.sequence$}) {
870: $url .= '&orgurl='.$data{'origurl'}.'&navmap=1';
871: } elsif ($data{'origurl'} ne '') {
872: $url .= '&orgurl='.$data{'origurl'};
873: }
874: if (ref($lti_env) eq 'HASH') {
875: &Apache::lonnet::appenv($lti_env);
876: }
877: $r->internal_redirect($url);
878: } else {
879: &Apache::ltiauth::invalid_request($r,23);
880: }
881: } elsif ($data{'origurl'} ne '') {
882: my $url = $data{'origurl'};
883: if ($url =~ m{/default_\d+\.sequence$}) {
884: $url .= (($url =~/\?/)?'&':'?').'navmap=1';
885: }
886: if (ref($lti_env) eq 'HASH') {
887: &Apache::lonnet::appenv($lti_env);
888: }
889: $r->internal_redirect($url);
890: } else {
891: if (ref($lti_env) eq 'HASH') {
892: &Apache::lonnet::appenv($lti_env);
893: }
894: }
895: }
896: } elsif ($data{'origurl'} ne '') {
897: my $dest = $data{'origurl'};
898: if (($env{'request.deeplink.login'} eq $data{'origurl'}) &&
899: (($env{'request.linkprot'}) || ($env{'request.linkkey'} ne ''))) {
900: my %info;
901: if ($env{'request.linkprot'}) {
902: $info{'linkprot'} = $env{'request.linkprot'};
903: } elsif ($env{'request.linkkey'} ne '') {
904: $info{'linkkey'} = $env{'request.linkkey'};
905: }
906: $info{'origurl'} = $data{'origurl'};
907: if ($checklaunch) {
908: $info{'checklaunch'} = 1;
909: }
910: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'link');
911: unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) ||
912: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
913: $dest .= (($dest =~ /\?/) ? '&' : '?') . 'ttoken='.$token;
914: }
915: }
916: $r->internal_redirect($dest);
917: } elsif ($env{'request.course.id'}) {
918: $r->internal_redirect('/adm/navmaps');
919: } else {
920: $r->internal_redirect('/adm/roles');
921: }
922: } else {
923: my $desturl = '/adm/roles';
924: if ($data{'lti.login'}) {
925: if ($data{'lti.selfenrollrole'}) {
926: $desturl .= '?selectrole=1&'.
927: &escape($data{'lti.selfenrollrole'}).'=1';
928: if ($data{'origurl'} ne '') {
929: $desturl .= '&orgurl='.$data{'origurl'};
930: if ($data{'origurl'} =~ m{/default_\d+\.sequence$}) {
931: $desturl .= '&navmap=1';
932: }
933: }
934: } elsif ($data{'origurl'} ne '') {
935: $desturl = $data{'origurl'};
936: if ($desturl =~ m{/default_\d+\.sequence$}) {
937: $desturl .= (($desturl =~/\?/)?'&':'?').'navmap=1';
938: }
939: }
940: } elsif ($data{'origurl'} ne '') {
941: $desturl = $data{'origurl'};
942: if ($data{'linkprot'}) {
943: my ($linkprotector,$linkuri) = split(/:/,$data{'linkprot'},2);
944: if ($linkprotector) {
945: if (ref($extra_env) eq 'HASH') {
946: $extra_env->{'user.linkprotector'} = $linkprotector;
947: $extra_env->{'user.linkproturi'} = $linkuri;
948: $extra_env->{'request.linkprot'} = $data{'linkprot'};
949: } else {
950: $extra_env = {'user.linkprotector' => $linkprotector,
951: 'user.linkproturi' => $linkuri,
952: 'request.linkprot' => $data{'linkprot'}};
953: }
954: }
955: } elsif ($data{'linkkey'} ne '') {
956: if (ref($extra_env) eq 'HASH') {
957: $extra_env->{'user.deeplinkkey'} = $data{'linkkey'};
958: $extra_env->{'user.keyedlinkuri'} = $data{'deeplink.login'};
959: $extra_env->{'request.linkkey'} = $data{'linkkey'};
960: } else {
961: $extra_env = {'user.deeplinkkey' => $data{'linkkey'},
962: 'user.keyedlinkuri' => $data{'deeplink.login'},
963: 'request.linkkey' => $data{'linkkey'}};
964: }
965: }
966: if ($data{'deeplink.login'}) {
967: if (ref($extra_env) eq 'HASH') {
968: $extra_env->{'request.deeplink.login'} = $data{'deeplink.login'};
969: } else {
970: $extra_env = {'request.deeplink.login' => $data{'deeplink.login'}};
971: }
972: }
973: }
974: my $skipcritical;
975: if ($data{'lti.login'}) {
976: if ((($data{'lti.reqcrs'}) &&
977: ($data{'lti.reqrole'} eq 'cc')) ||
978: ($data{'lti.selfenrollrole'})) {
979: $skipcritical = 1;
980: }
981: }
982: &Apache::lonauth::success($r,$data{'username'},$data{'domain'},
983: $home,$desturl,$extra_env,\%form,$skipcritical,'',
984: $expirepub);
985: }
986: return OK;
987: }
988:
989: if ($data{'lti.login'}) {
990: my $handle = &Apache::lonnet::check_for_valid_session($r);
991: if ($handle) {
992: &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
993: $handle);
994: my $needslogout;
995: if ($env{'request.lti.login'}) {
996: if (($env{'user.name'} ne $data{'username'}) ||
997: ($env{'user.domain'} ne $data{'domain'})) {
998: $needslogout = 1;
999: }
1000: } else {
1001: $needslogout = 1;
1002: }
1003: if ($needslogout) {
1004: &logout($r,$ip,$handle,\%data,$lti_env);
1005: return OK;
1006: }
1007: }
1008: }
1009:
1010: # check if current user, and role match those expected.
1011: my ($next_url,$reuse_session);
1012: if (($env{'user.name'} eq $data{'username'}) && ($env{'user.domain'} eq $data{'domain'}) &&
1013: ($env{'request.role'} eq $data{'role'}) && ($data{'origurl'} ne '')) {
1014: $next_url = $data{'origurl'};
1015: $reuse_session = 1;
1016: } elsif ($data{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
1017: $next_url=$data{'origurl'};
1018: } else {
1019: if ($data{'lti.login'}) {
1020: $next_url='/adm/roles?selectrole=1&'.&escape($data{'role'}).'=1';
1021: if ($data{'origurl'} ne '') {
1022: $next_url .= '&orgurl='.&escape($data{'origurl'});
1023: }
1024: } else {
1025: $next_url='/adm/roles?selectrole=1&'.&escape($data{'role'}).'=1';
1026: if ($data{'origurl'} ne '') {
1027: $next_url .= '&orgurl='.&escape($data{'origurl'});
1028: }
1029: }
1030: }
1031: if ($data{'lti.login'}) {
1032: if (($data{'origurl'} =~ m{/default_\d+\.sequence$}) ||
1033: ($data{'origurl'} =~ m{^/res/.+\.sequence$})) {
1034: if ($reuse_session) {
1035: $next_url .= '&navmap=1';
1036: } else {
1037: $next_url .= '&navmap=1';
1038: }
1039: }
1040: }
1041: if ($reuse_session) {
1042: $r->internal_redirect($next_url);
1043: } else {
1044: if ($data{'deeplink.login'}) {
1045: if (ref($extra_env) eq 'HASH') {
1046: $extra_env->{'request.deeplink.login'} = $data{'deeplink.login'};
1047: } else {
1048: $extra_env = {'request.deeplink.login' => $data{'deeplink.login'}};
1049: }
1050: if ($data{'linkprot'}) {
1051: $extra_env->{'request.linkprot'} = $data{'linkprot'};
1052: } elsif ($data{'linkkey'} ne '') {
1053: $extra_env->{'request.linkkey'} = $data{'linkkey'};
1054: }
1055: }
1056: &Apache::lonauth::success($r,$data{'username'},$data{'domain'},$home,
1057: $next_url,$extra_env,\%form,'',$cid);
1058: }
1059: return OK;
1060: }
1061:
1062: 1;
1063: __END__
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