Annotation of loncom/auth/lonauth.pm, revision 1.172
1.136 kruse 1: # The LearningOnline Network
2: # User Authentication Module
3: #
1.172 ! raeburn 4: # $Id: lonauth.pm,v 1.171 2021/11/24 20:15:15 raeburn Exp $
1.136 kruse 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::lonauth;
30:
31: use strict;
1.140 raeburn 32: use LONCAPA qw(:DEFAULT :match);
1.136 kruse 33: use Apache::Constants qw(:common);
34: use CGI qw(:standard);
35: use Apache::loncommon();
36: use Apache::lonnet;
37: use Apache::lonmenu();
38: use Apache::createaccount;
1.149 raeburn 39: use Apache::ltiauth;
1.136 kruse 40: use Fcntl qw(:flock);
41: use Apache::lonlocal;
42: use Apache::File();
43: use HTML::Entities;
1.143 raeburn 44: use Digest::MD5;
1.170 raeburn 45: use CGI::Cookie();
1.136 kruse 46:
47: # ------------------------------------------------------------ Successful login
48: sub success {
49: my ($r, $username, $domain, $authhost, $lowerurl, $extra_env,
1.170 raeburn 50: $form,$skipcritical,$cid,$expirepub) = @_;
1.136 kruse 51:
52: # ------------------------------------------------------------ Get cookie ready
53: my $cookie =
54: &Apache::loncommon::init_user_environment($r, $username, $domain,
55: $authhost, $form,
56: {'extra_env' => $extra_env,});
57:
58: my $public=($username eq 'public' && $domain eq 'public');
59:
60: if ($public or $lowerurl eq 'noredirect') { return $cookie; }
61:
62: # -------------------------------------------------------------------- Log this
63:
1.162 raeburn 64: my $ip = &Apache::lonnet::get_requestor_ip();
1.136 kruse 65: &Apache::lonnet::log($domain,$username,$authhost,
1.162 raeburn 66: "Login $ip");
1.136 kruse 67:
68: # ------------------------------------------------- Check for critical messages
69:
1.149 raeburn 70: unless ($skipcritical) {
71: my @what=&Apache::lonnet::dump('critical',$domain,$username);
72: if ($what[0]) {
73: if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {
74: $lowerurl='/adm/email?critical=display';
75: }
1.136 kruse 76: }
77: }
78:
1.143 raeburn 79: # ----------------------------------------------------------- Get cookies ready
80: my ($securecookie,$defaultcookie);
1.154 raeburn 81: my $ssl = $r->subprocess_env('https');
82: if ($ssl) {
83: $securecookie="lonSID=$cookie; path=/; HttpOnly; secure";
1.143 raeburn 84: my $lonidsdir=$r->dir_config('lonIDsDir');
85: if (($lonidsdir) && (-e "$lonidsdir/$cookie.id")) {
86: my $linkname=substr(Digest::MD5::md5_hex(Digest::MD5::md5_hex(time(). {}. rand(). $$)), 0, 32).'_linked';
87: if (-e "$lonidsdir/$linkname.id") {
88: unlink("$lonidsdir/$linkname.id");
89: }
90: my $made_symlink = eval { symlink("$lonidsdir/$cookie.id",
91: "$lonidsdir/$linkname.id"); 1 };
92: if ($made_symlink) {
93: $defaultcookie = "lonLinkID=$linkname; path=/; HttpOnly;";
1.154 raeburn 94: &Apache::lonnet::appenv({'user.linkedenv' => $linkname});
1.143 raeburn 95: }
96: }
97: } else {
98: $defaultcookie = "lonID=$cookie; path=/; HttpOnly;";
99: }
1.136 kruse 100: # -------------------------------------------------------- Menu script and info
101: my $destination = $lowerurl;
1.149 raeburn 102: if ($env{'request.lti.login'}) {
103: if (($env{'request.lti.reqcrs'}) && ($env{'request.lti.reqrole'} eq 'cc')) {
104: &Apache::loncommon::content_type($r,'text/html');
105: if ($securecookie) {
106: $r->headers_out->add('Set-cookie' => $securecookie);
107: }
108: if ($defaultcookie) {
109: $r->headers_out->add('Set-cookie' => $defaultcookie);
110: }
111: $r->send_http_header;
1.152 raeburn 112: if (ref($form) eq 'HASH') {
1.158 raeburn 113: $form->{'lti.login'} = $env{'request.lti.login'};
1.152 raeburn 114: $form->{'lti.reqcrs'} = $env{'request.lti.reqcrs'};
115: $form->{'lti.reqrole'} = $env{'request.lti.reqrole'};
116: $form->{'lti.sourcecrs'} = $env{'request.lti.sourcecrs'};
117: }
1.149 raeburn 118: &Apache::ltiauth::lti_reqcrs($r,$domain,$form,$username,$domain);
119: return;
120: }
121: if ($env{'request.lti.selfenrollrole'}) {
122: if (&Apache::ltiauth::lti_enroll($username,$domain,
123: $env{'request.lti.selfenrollrole'}) eq 'ok') {
124: $form->{'role'} = $env{'request.lti.selfenrollrole'};
125: &Apache::lonnet::delenv('request.lti.selfenrollrole');
126: } else {
127: &Apache::ltiauth::invalid_request($r,24);
128: }
129: }
130: }
1.136 kruse 131: if (defined($form->{role})) {
132: my $envkey = 'user.role.'.$form->{role};
133: my $now=time;
134: my $then=$env{'user.login.time'};
135: my $refresh=$env{'user.refresh.time'};
136: my $update=$env{'user.update.time'};
137: if (!$update) {
138: $update = $then;
139: }
140: if (exists($env{$envkey})) {
141: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus);
142: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
143: \$trolecode,\$tstatus,\$tstart,\$tend);
144: if ($tstatus eq 'is') {
145: $destination .= ($destination =~ /\?/) ? '&' : '?';
146: my $newrole = &HTML::Entities::encode($form->{role},'"<>&');
147: $destination .= 'selectrole=1&'.$newrole.'=1';
148: }
149: }
150: }
151: if (defined($form->{symb})) {
152: my $destsymb = $form->{symb};
1.159 raeburn 153: my $encrypted;
154: if ($destsymb =~ m{^/enc/}) {
155: $encrypted = 1;
156: if ($cid) {
157: $destsymb = &Apache::lonenc::unencrypted($destsymb,$cid);
158: }
159: }
1.136 kruse 160: $destination .= ($destination =~ /\?/) ? '&' : '?';
161: if ($destsymb =~ /___/) {
162: my ($map,$resid,$desturl)=split(/___/,$destsymb);
1.137 raeburn 163: $desturl = &Apache::lonnet::clutter($desturl);
1.159 raeburn 164: if ($encrypted) {
165: $desturl = &Apache::lonenc::encrypted($desturl,1,$cid);
166: $destsymb = $form->{symb};
167: }
1.136 kruse 168: $desturl = &HTML::Entities::encode($desturl,'"<>&');
169: $destsymb = &HTML::Entities::encode($destsymb,'"<>&');
170: $destination .= 'destinationurl='.$desturl.
171: '&destsymb='.$destsymb;
1.159 raeburn 172: } elsif (!$encrypted) {
1.136 kruse 173: $destsymb = &HTML::Entities::encode($destsymb,'"<>&');
174: $destination .= 'destinationurl='.$destsymb;
175: }
176: }
177: if ($destination =~ m{^/adm/roles}) {
178: $destination .= ($destination =~ /\?/) ? '&' : '?';
179: $destination .= 'source=login';
180: }
181:
1.169 raeburn 182: if (($env{'request.deeplink.login'} eq $lowerurl) &&
183: (($env{'request.linkprot'}) || ($env{'request.linkkey'} ne ''))) {
184: my %info;
185: if ($env{'request.linkprot'}) {
186: $info{'linkprot'} = $env{'request.linkprot'};
187: } elsif ($env{'request.linkkey'} ne '') {
188: $info{'linkkey'} = $env{'request.linkkey'};
189: }
190: $info{'origurl'} = $lowerurl;
191: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'link');
192: unless (($token eq 'con_lost') || ($token eq 'refused') ||
193: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
194: $destination .= (($destination =~ /\?/) ? '&' : '?') . 'ttoken='.$token;
195: }
196: }
197:
1.150 raeburn 198: my $windowname = 'loncapaclient';
199: if ($env{'request.lti.login'}) {
200: $windowname .= 'lti';
201: }
202: my $windowinfo = Apache::lonhtmlcommon::scripttag('self.name="'.$windowname.'";');
1.136 kruse 203: my $brcrum = [{'href' => '',
204: 'text' => 'Successful Login'},];
1.140 raeburn 205: my $args = {'bread_crumbs' => $brcrum,};
206: unless ((defined($form->{role})) || (defined($form->{symb}))) {
207: my $update=$env{'user.update.time'};
208: if (!$update) {
209: $update = $env{'user.login.time'};
210: }
211: my %roles_in_env;
212: my $showcount = &Apache::lonroles::roles_from_env(\%roles_in_env,$update);
213: if ($showcount == 1) {
214: foreach my $rolecode (keys(%roles_in_env)) {
215: my ($cid) = ($rolecode =~ m{^\Quser.role.st./\E($match_domain/$match_courseid)(?:/|$)});
216: if ($cid) {
217: my %coursedescription =
218: &Apache::lonnet::coursedescription($cid,{'one_time' => '1'});
219: if ($coursedescription{'type'} eq 'Placement') {
220: $args->{'crstype'} = 'Placement';
221: }
222: last;
223: }
224: }
225: }
226: }
1.136 kruse 227:
228: # ------------------------------------------------- Output for successful login
229:
230: &Apache::loncommon::content_type($r,'text/html');
1.143 raeburn 231: if ($securecookie) {
232: $r->headers_out->add('Set-cookie' => $securecookie);
233: }
234: if ($defaultcookie) {
235: $r->headers_out->add('Set-cookie' => $defaultcookie);
236: }
1.170 raeburn 237: if ($expirepub) {
238: my $c = new CGI::Cookie(-name => 'lonPubID',
239: -value => '',
240: -expires => '-10y',);
241: $r->headers_out->add('Set-cookie' => $c);
242: }
1.136 kruse 243: $r->send_http_header;
244:
1.153 raeburn 245: my ($start_page,$js,$pagebody,$end_page);
1.151 raeburn 246: if ($env{'request.lti.login'}) {
1.153 raeburn 247: $args = {'only_body' => 1};
248: if ($env{'request.lti.target'} eq '') {
249: my $ltitarget = (($destination =~ /\?/) ? '&' : '?').
250: 'ltitarget=iframe';
251: $js = <<"ENDJS";
252:
253: <script type="text/javascript">
254: // <![CDATA[
255: function setLTItarget() {
256: var newloc = '$destination';
257: if (parent !== window) {
258: newloc += '$ltitarget';
259: }
260: window.location.href=newloc;
261: }
262: // ]]>
263: </script>
264:
265: ENDJS
266: $args->{'add_entries'} = {'onload' => "javascript:setLTItarget();"};
267: $pagebody = '<noscript><span class="LC_warning">'
268: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
269: .'</span></noscript>';
270: } else {
271: $args->{'redirect'} = [0,$destination,1];
272: }
273: $start_page=&Apache::loncommon::start_page('',$js,$args);
1.151 raeburn 274: } else {
1.153 raeburn 275: $args->{'redirect'} = [0,$destination];
1.151 raeburn 276: $start_page=&Apache::loncommon::start_page('Successful Login',
1.153 raeburn 277: $js,$args);
1.149 raeburn 278:
1.151 raeburn 279: my %lt=&Apache::lonlocal::texthash(
280: 'wel' => 'Welcome',
281: 'pro' => 'Login problems?',
282: );
283: $pagebody = "<h1>$lt{'wel'}</h1>\n".
284: &mt('Welcome to the Learning[_1]Online[_2] Network with CAPA. Please wait while your session is being set up.','<i>','</i>');
285: my $loginhelp = &loginhelpdisplay($domain);
286: if ($loginhelp) {
287: $pagebody .= '<p><a href="'.$loginhelp.'">'.$lt{'pro'}.'</a></p>';
288: }
1.136 kruse 289: }
1.153 raeburn 290: $end_page = &Apache::loncommon::end_page();
1.136 kruse 291: $r->print(<<ENDSUCCESS);
292: $start_page
293: $windowinfo
1.151 raeburn 294: $pagebody
1.136 kruse 295: $end_page
296: ENDSUCCESS
297: return;
298: }
299:
300: # --------------------------------------------------------------- Failed login!
301:
302: sub failed {
1.171 raeburn 303: my ($r,$message,$form,$authhost) = @_;
1.136 kruse 304: (undef,undef,undef,my $clientmathml,my $clientunicode) =
305: &Apache::loncommon::decode_user_agent();
306: my $args = {};
307: if ($clientunicode && !$clientmathml) {
308: $args = {'browser.unicode' => 1};
309: }
310:
1.171 raeburn 311: my @actions;
1.136 kruse 312: my $start_page = &Apache::loncommon::start_page('Unsuccessful Login',undef,$args);
313: my $uname = &Apache::loncommon::cleanup_html($form->{'uname'});
314: my $udom = &Apache::loncommon::cleanup_html($form->{'udom'});
315: if (&Apache::lonnet::domain($udom,'description') eq '') {
316: undef($udom);
317: }
1.171 raeburn 318: my $authtype;
319: if (($udom ne '') && ($uname ne '') && ($authhost eq 'no_host')) {
320: $authtype = &Apache::lonnet::queryauthenticate($uname,$udom);
321: }
1.136 kruse 322: my $retry = '/adm/login';
1.171 raeburn 323: if (($uname eq $form->{'uname'}) && ($authtype !~ /^lti:/)) {
1.136 kruse 324: $retry .= '?username='.$uname;
325: }
326: if ($udom) {
327: $retry .= (($retry=~/\?/)?'&':'?').'domain='.$udom;
328: }
1.168 raeburn 329: my $lonhost = $r->dir_config('lonHostID');
330: my $querystr;
331: my $result = &set_retry_token($form,$lonhost,\$querystr);
332: if ($result eq 'fail') {
333: if (exists($form->{role})) {
334: my $role = &Apache::loncommon::cleanup_html($form->{role});
335: if ($role ne '') {
336: $retry .= (($retry=~/\?/)?'&':'?').'role='.$role;
337: }
338: }
339: if (exists($form->{symb})) {
340: my $symb = &Apache::loncommon::cleanup_html($form->{symb});
341: if ($symb ne '') {
342: $retry .= (($retry=~/\?/)?'&':'?').'symb='.$symb;
343: }
344: }
345: if (exists($form->{firsturl})) {
346: my $firsturl = &Apache::loncommon::cleanup_html($form->{firsturl});
347: if ($firsturl ne '') {
348: $retry .= (($retry=~/\?/)?'&':'?').'firsturl='.$firsturl;
349: if ($form->{firsturl} =~ m{^/tiny/$match_domain/\w+$}) {
350: unless (exists($form->{linkprot})) {
351: if (exists($form->{linkkey})) {
352: $retry .= 'linkkey='.$form->{linkkey};
353: }
1.157 raeburn 354: }
355: }
356: }
1.155 raeburn 357: }
1.168 raeburn 358: if (exists($form->{linkprot})) {
359: my $ltoken = &Apache::lonnet::tmpput({linkprot => $form->{'linkprot'}},
1.169 raeburn 360: $r->dir_config('lonHostID'),'retry');
1.168 raeburn 361: if ($ltoken) {
362: $retry .= (($retry =~ /\?/) ? '&' : '?').'ltoken='.$ltoken;
363: }
1.156 raeburn 364: }
1.168 raeburn 365: } elsif ($querystr ne '') {
366: $retry .= (($retry=~/\?/)?'&':'?').$querystr;
1.156 raeburn 367: }
1.136 kruse 368: my $end_page = &Apache::loncommon::end_page();
369: &Apache::loncommon::content_type($r,'text/html');
370: $r->send_http_header;
1.171 raeburn 371: if ($authtype =~ /^lti:/) {
372: $message = &mt('Direct login is not supported with the username you entered.').
373: '<br /><br />'.
374: &mt('You likely need to launch LON-CAPA from within a course in a different Learning Management System.').
375: '<br />'.
376: &mt('You can also try to log in with a different username.');
377: @actions =
378: (&mt('Try your [_1]log in again[_2].','<a href="'.$retry.'">','</a>'));
379: } else {
380: $message = &mt($message);
381: @actions =
382: (&mt('Please [_1]log in again[_2].','<a href="'.$retry.'">','</a>'));
383: }
1.136 kruse 384: my $loginhelp = &loginhelpdisplay($udom);
385: if ($loginhelp) {
386: push(@actions, '<a href="'.$loginhelp.'">'.&mt('Login problems?').'</a>');
387: }
388: #FIXME: link to helpdesk might be added here
389: $r->print(
390: $start_page
391: .'<h2>'.&mt('Sorry ...').'</h2>'
1.171 raeburn 392: .&Apache::lonhtmlcommon::confirm_success($message,1).'<br /><br />'
1.136 kruse 393: .&Apache::lonhtmlcommon::actionbox(\@actions)
394: .$end_page
395: );
396: }
397:
398: # ------------------------------------------------------------------ Rerouting!
399:
400: sub reroute {
401: my ($r) = @_;
402: &Apache::loncommon::content_type($r,'text/html');
403: $r->send_http_header;
404: my $msg='<b>'.&mt('Sorry ...').'</b><br />'
405: .&mt('Please [_1]log in again[_2].');
406: &Apache::loncommon::simple_error_page($r,'Rerouting',$msg,{'no_auto_mt_msg' => 1});
407: }
408:
409: # ---------------------------------------------------------------- Main handler
410:
411: sub handler {
412: my $r = shift;
413: my $londocroot = $r->dir_config('lonDocRoot');
414: # Are we re-routing?
415: if (-e "$londocroot/lon-status/reroute.txt") {
416: &reroute($r);
417: return OK;
418: }
419:
420: &Apache::lonlocal::get_language_handle($r);
421:
422: # -------------------------------- Prevent users from attempting to login twice
423: my $handle = &Apache::lonnet::check_for_valid_session($r);
424: if ($handle ne '') {
425: my $lonidsdir=$r->dir_config('lonIDsDir');
426: if ($handle=~/^publicuser\_/) {
427: # For "public user" - remove it, we apparently really want to login
428: unlink($r->dir_config('lonIDsDir')."/$handle.id");
429: } else {
430: # Indeed, a valid token is found
431: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
432: &Apache::loncommon::content_type($r,'text/html');
433: $r->send_http_header;
1.166 raeburn 434: my $start_page =
1.136 kruse 435: &Apache::loncommon::start_page('Already logged in');
436: my $end_page =
437: &Apache::loncommon::end_page();
438: my $dest = '/adm/roles';
1.169 raeburn 439: my %form = &get_form_items($r);
440: if ($form{'logtoken'}) {
441: my $tmpinfo = &Apache::lonnet::reply('tmpget:'.$form{'logtoken'},
442: $form{'serverid'});
443: unless (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost') ||
444: ($tmpinfo eq 'no_such_host')) {
445: my ($des_key,$firsturl,@rest)=split(/&/,$tmpinfo);
446: $firsturl = &unescape($firsturl);
447: my %info;
448: foreach my $item (@rest) {
449: my ($key,$value) = split(/=/,$item);
450: $info{$key} = &unescape($value);
451: }
452: if ($firsturl ne '') {
453: $info{'firsturl'} = $firsturl;
454: $dest = $firsturl;
455: my $relogin;
456: if ($dest =~ m{^/tiny/$match_domain/\w+$}) {
457: if ($env{'request.course.id'}) {
458: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
459: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
460: my $symb = &Apache::loncommon::symb_from_tinyurl($dest,$cnum,$cdom);
461: if ($symb) {
462: unless (&set_deeplink_login(%info) eq 'ok') {
463: $relogin = 1;
464: }
465: }
466: }
467: if ($relogin) {
468: $r->print(
469: $start_page
470: .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
471: .'<p>'.&mt('Please [_1]log out[_2] first, and then try your access again',
472: '<a href="/adm/logout">','</a>')
473: .'</p>'
474: .$end_page);
475: } else {
476: if (($info{'linkprot'}) || ($info{'linkkey'} ne '')) {
477: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'link');
478: unless (($token eq 'con_lost') || ($token eq 'refused') ||
479: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
480: $dest .= (($dest =~ /\?/) ? '&' : '?') . 'ttoken='.$token;
481: }
482: }
483: $r->print(
484: $start_page
485: .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
486: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4] first, and then try your access again',
487: '<a href="'.$dest.'">','</a>',
488: '<a href="/adm/logout">','</a>')
489: .'</p>'
490: .$end_page);
491: }
492: return OK;
1.164 raeburn 493: }
494: }
1.157 raeburn 495: }
1.136 kruse 496: }
497: $r->print(
1.169 raeburn 498: $start_page
499: .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
500: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].'
501: ,'<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>')
502: .'</p>'
503: .$end_page
1.136 kruse 504: );
505: return OK;
506: }
507: }
508:
509: # ---------------------------------------------------- No valid token, continue
510:
1.169 raeburn 511: my %form = &get_form_items($r);
1.136 kruse 512: if ((!$form{'uname'}) || (!$form{'upass0'}) || (!$form{'udom'})) {
513: &failed($r,'Username, password and domain need to be specified.',
514: \%form);
515: return OK;
516: }
517:
518: # split user logging in and "su"-user
519:
1.145 raeburn 520: ($form{'uname'},$form{'suname'},$form{'sudom'})=split(/\:/,$form{'uname'});
1.136 kruse 521: $form{'uname'} = &LONCAPA::clean_username($form{'uname'});
522: $form{'suname'}= &LONCAPA::clean_username($form{'suname'});
1.145 raeburn 523: $form{'udom'} = &LONCAPA::clean_domain($form{'udom'});
524: $form{'sudom'} = &LONCAPA::clean_domain($form{'sudom'});
1.136 kruse 525:
526: my $role = $r->dir_config('lonRole');
527: my $domain = $r->dir_config('lonDefDomain');
528: my $prodir = $r->dir_config('lonUsersDir');
529: my $contact_name = &mt('LON-CAPA helpdesk');
530:
531: # ---------------------------------------- Get the information from login token
532:
533: my $tmpinfo=Apache::lonnet::reply('tmpget:'.$form{'logtoken'},
534: $form{'serverid'});
535:
536: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost') ||
537: ($tmpinfo eq 'no_such_host')) {
538: &failed($r,'Information needed to verify your login information is missing, inaccessible or expired.',\%form);
539: return OK;
540: } else {
541: my $reply = &Apache::lonnet::reply('tmpdel:'.$form{'logtoken'},
542: $form{'serverid'});
543: if ( $reply ne 'ok' ) {
544: &failed($r,'Session could not be opened.',\%form);
545: &Apache::lonnet::logthis("ERROR got a reply of $reply when trying to contact ". $form{'serverid'}." to get login token");
546: return OK;
547: }
548: }
549:
550: if (!&Apache::lonnet::domain($form{'udom'})) {
551: &failed($r,'The domain you provided is not a valid LON-CAPA domain.',\%form);
552: return OK;
553: }
554:
1.169 raeburn 555: my ($des_key,$firsturl,@rest)=split(/&/,$tmpinfo);
556: $firsturl = &unescape($firsturl);
1.168 raeburn 557: foreach my $item (@rest) {
558: my ($key,$value) = split(/=/,$item);
559: $form{$key} = &unescape($value);
1.156 raeburn 560: }
1.155 raeburn 561: if ($firsturl =~ m{^/tiny/$match_domain/\w+$}) {
562: $form{'firsturl'} = $firsturl;
563: }
1.139 raeburn 564: my $upass = $ENV{HTTPS} ? $form{'upass0'}
1.169 raeburn 565: : &Apache::loncommon::des_decrypt($des_key,$form{'upass0'});
1.136 kruse 566:
567: # ---------------------------------------------------------------- Authenticate
568:
569: my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$form{'udom'});
570: my ($cancreate,$statustocreate) =
571: &Apache::createaccount::get_creation_controls($form{'udom'},$domconfig{'usercreation'});
572: my $defaultauth;
573: if (ref($cancreate) eq 'ARRAY') {
574: if (grep(/^login$/,@{$cancreate})) {
575: $defaultauth = 1;
576: }
577: }
578: my $clientcancheckhost = 1;
579: my $authhost=Apache::lonnet::authenticate($form{'uname'},$upass,
580: $form{'udom'},$defaultauth,
581: $clientcancheckhost);
1.149 raeburn 582:
1.136 kruse 583: # --------------------------------------------------------------------- Failed?
584:
585: if ($authhost eq 'no_host') {
1.172 ! raeburn 586: my $pwdverify;
! 587: if (&Apache::lonnet::homeserver($form{'uname'},$form{'udom'}) eq 'no_host') {
! 588: my %possunames = &alternate_unames_check($form{'uname'},$form{'udom'});
! 589: if (keys(%possunames) > 0) {
! 590: foreach my $rulematch (keys(%possunames)) {
! 591: my $possuname = $possunames{$rulematch};
! 592: if (($possuname ne '') && ($possuname =~ /^$match_username$/)) {
! 593: $authhost=Apache::lonnet::authenticate($possuname,$upass,
! 594: $form{'udom'},undef,
! 595: $clientcancheckhost);
! 596: if (($authhost eq 'no_host') || ($authhost eq 'no_account_on_host')) {
! 597: next;
! 598: } elsif (($authhost ne '') && (&Apache::lonnet::hostname($authhost) ne '')) {
! 599: $pwdverify = 1;
! 600: &Apache::lonnet::logthis("Authenticated user: $possuname was submitted as: $form{'uname'}");
! 601: $form{'uname'} = $possuname;
! 602: last;
! 603: }
! 604: }
! 605: }
! 606: }
! 607: }
! 608: unless ($pwdverify) {
! 609: &failed($r,'Username and/or password could not be authenticated.',
! 610: \%form,$authhost);
! 611: return OK;
! 612: }
1.136 kruse 613: } elsif ($authhost eq 'no_account_on_host') {
614: if ($defaultauth) {
615: my $domdesc = &Apache::lonnet::domain($form{'udom'},'description');
616: unless (&check_can_host($r,\%form,'no_account_on_host',$domdesc)) {
617: return OK;
618: }
619: my $start_page =
1.168 raeburn 620: &Apache::loncommon::start_page('Create a user account in LON-CAPA',
621: '',{'no_inline_link' => 1,});
1.136 kruse 622: my $lonhost = $r->dir_config('lonHostID');
623: my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
624: my $contacts =
625: &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
626: $form{'udom'},$origmail);
627: my ($contact_email) = split(',',$contacts);
628: my $output =
629: &Apache::createaccount::username_check($form{'uname'},$form{'udom'},
630: $domdesc,'',$lonhost,
631: $contact_email,$contact_name,
632: undef,$statustocreate);
633: &Apache::loncommon::content_type($r,'text/html');
634: $r->send_http_header;
635: &Apache::createaccount::print_header($r,$start_page);
636: $r->print('<h3>'.&mt('Account creation').'</h3>'.
637: &mt('Although your username and password were authenticated, you do not currently have a LON-CAPA account at this institution.').'<br />'.
638: $output.&Apache::loncommon::end_page());
639: return OK;
640: } else {
641: &failed($r,'Although your username and password were authenticated, you do not currently have a LON-CAPA account in this domain, and you are not permitted to create one.',\%form);
642: return OK;
643: }
644: }
645:
646: if (($firsturl eq '') ||
647: ($firsturl=~/^\/adm\/(logout|remote)/)) {
648: $firsturl='/adm/roles';
649: }
650:
1.169 raeburn 651: my ($hosthere,%sessiondata);
1.136 kruse 652: if ($form{'iptoken'}) {
1.169 raeburn 653: %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
1.138 raeburn 654: my $delete = &Apache::lonnet::tmpdel($form{'iptoken'});
1.136 kruse 655: if (($sessiondata{'domain'} eq $form{'udom'}) &&
656: ($sessiondata{'username'} eq $form{'uname'})) {
657: $hosthere = 1;
658: }
659: }
660:
661: # --------------------------------- Are we attempting to login as somebody else?
662: if ($form{'suname'}) {
1.145 raeburn 663: my ($suname,$sudom,$sudomref);
664: $suname = $form{'suname'};
665: $sudom = $form{'udom'};
666: if ($form{'sudom'}) {
667: unless ($sudom eq $form{'sudom'}) {
668: if (&Apache::lonnet::domain($form{'sudom'})) {
669: $sudomref = [$form{'sudom'}];
670: $sudom = $form{'sudom'};
671: }
672: }
673: }
1.136 kruse 674: # ------------ see if the original user has enough privileges to pull this stunt
1.145 raeburn 675: if (&Apache::lonnet::privileged($form{'uname'},$form{'udom'},$sudomref)) {
1.136 kruse 676: # ---------------------------------------------------- see if the su-user exists
1.145 raeburn 677: unless (&Apache::lonnet::homeserver($suname,$sudom) eq 'no_host') {
1.136 kruse 678: # ------------------------------ see if the su-user is not too highly privileged
1.146 raeburn 679: if (&Apache::lonnet::privileged($suname,$sudom)) {
680: &Apache::lonnet::logthis('Attempted switch user to privileged user');
681: } else {
682: my $noprivswitch;
1.145 raeburn 683: #
684: # su-user's home server and user's home server must have one of:
1.147 raeburn 685: # (a) same domain
686: # (b) same primary library server for the two domains
687: # (c) same "internet domain" for primary library server(s) for home servers' domains
1.145 raeburn 688: #
1.148 raeburn 689: my $suprim = &Apache::lonnet::domain($sudom,'primary');
690: my $suintdom = &Apache::lonnet::internet_dom($suprim);
1.145 raeburn 691: unless ($sudom eq $form{'udom'}) {
1.148 raeburn 692: my $uprim = &Apache::lonnet::domain($form{'udom'},'primary');
693: my $uintdom = &Apache::lonnet::internet_dom($uprim);
1.145 raeburn 694: unless ($suprim eq $uprim) {
695: unless ($suintdom eq $uintdom) {
696: &Apache::lonnet::logthis('Attempted switch user '
1.169 raeburn 697: .'to user with different "internet domain".');
1.146 raeburn 698: $noprivswitch = 1;
1.145 raeburn 699: }
700: }
701: }
702:
1.146 raeburn 703: unless ($noprivswitch) {
704: #
705: # server where log-in occurs must have same "internet domain" as su-user's home
706: # server
707: #
708: my $lonhost = $r->dir_config('lonHostID');
709: my $hostintdom = &Apache::lonnet::internet_dom($lonhost);
1.148 raeburn 710: if ($hostintdom ne $suintdom) {
1.146 raeburn 711: &Apache::lonnet::logthis('Attempted switch user on a '
712: .'server with a different "internet domain".');
713: } else {
714:
1.136 kruse 715: # -------------------------------------------------------- actually switch users
1.145 raeburn 716:
1.146 raeburn 717: &Apache::lonnet::logperm('User '.$form{'uname'}.' at '.
718: $form{'udom'}.' logging in as '.$suname.':'.$sudom);
719: $form{'uname'}=$suname;
720: if ($form{'udom'} ne $sudom) {
721: $form{'udom'}=$sudom;
722: }
723: }
1.145 raeburn 724: }
1.136 kruse 725: }
726: }
727: } else {
728: &Apache::lonnet::logthis('Non-privileged user attempting switch user');
729: }
730: }
731:
732: my ($is_balancer,$otherserver);
733:
734: unless ($hosthere) {
735: ($is_balancer,$otherserver) =
1.141 raeburn 736: &Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'},'login');
737: if ($is_balancer) {
1.161 raeburn 738: # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
739: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r);
740: if (($found_server) && ($balancer_cookie =~ /^\Q$env{'user.domain'}\E_\Q$env{'user.name'}\E_/)) {
741: $otherserver = $found_server;
742: }
1.141 raeburn 743: if ($otherserver eq '') {
744: my $lowest_load;
745: ($otherserver,undef,undef,undef,$lowest_load) = &Apache::lonnet::choose_server($form{'udom'});
746: if ($lowest_load > 100) {
1.163 raeburn 747: $otherserver = &Apache::lonnet::spareserver($r,$lowest_load,$lowest_load,1,$form{'udom'});
1.141 raeburn 748: }
749: }
750: if ($otherserver ne '') {
751: my @hosts = &Apache::lonnet::current_machine_ids();
752: if (grep(/^\Q$otherserver\E$/,@hosts)) {
753: $hosthere = $otherserver;
754: }
755: }
756: }
1.136 kruse 757: }
758:
1.141 raeburn 759: if (($is_balancer) && (!$hosthere)) {
1.136 kruse 760: if ($otherserver) {
761: &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
762: \%form);
763: my $switchto = '/adm/switchserver?otherserver='.$otherserver;
764: if (($firsturl) && ($firsturl ne '/adm/switchserver') && ($firsturl ne '/adm/roles')) {
1.168 raeburn 765: $switchto .= '&origurl='.$firsturl;
1.136 kruse 766: }
767: if ($form{'role'}) {
768: $switchto .= '&role='.$form{'role'};
769: }
770: if ($form{'symb'}) {
771: $switchto .= '&symb='.$form{'symb'};
772: }
1.156 raeburn 773: if ($form{'linkprot'}) {
774: $env{'request.linkprot'} = $form{'linkprot'};
1.167 raeburn 775: } elsif ($form{'linkkey'} ne '') {
1.164 raeburn 776: $env{'request.linkkey'} = $form{'linkkey'};
777: }
778: if ($form{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
779: &set_deeplink_login(%form);
1.156 raeburn 780: }
1.136 kruse 781: $r->internal_redirect($switchto);
782: } else {
1.160 raeburn 783: &Apache::loncommon::content_type($r,'text/html');
784: $r->send_http_header;
1.136 kruse 785: $r->print(&noswitch());
786: }
787: return OK;
788: } else {
789: if (!&check_can_host($r,\%form,$authhost)) {
790: my ($otherserver) = &Apache::lonnet::choose_server($form{'udom'});
791: if ($otherserver) {
792: &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
793: \%form);
794: my $switchto = '/adm/switchserver?otherserver='.$otherserver;
795: if (($firsturl) && ($firsturl ne '/adm/switchserver') && ($firsturl ne '/adm/roles')) {
1.168 raeburn 796: $switchto .= '&origurl='.$firsturl;
1.136 kruse 797: }
798: if ($form{'role'}) {
799: $switchto .= '&role='.$form{'role'};
800: }
801: if ($form{'symb'}) {
802: $switchto .= '&symb='.$form{'symb'};
803: }
1.156 raeburn 804: if ($form{'linkprot'}) {
805: $env{'request.linkprot'} = $form{'linkprot'};
1.167 raeburn 806: } elsif ($form{'linkkey'} ne '') {
1.164 raeburn 807: $env{'request.linkkey'} = $form{'linkkey'};
808: }
809: if ($form{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
810: &set_deeplink_login(%form);
1.156 raeburn 811: }
1.136 kruse 812: $r->internal_redirect($switchto);
813: } else {
1.160 raeburn 814: &Apache::loncommon::content_type($r,'text/html');
815: $r->send_http_header;
1.136 kruse 816: $r->print(&noswitch());
817: }
818: return OK;
819: }
820:
821: # ------------------------------------------------------- Do the load balancing
822:
823: # ---------------------------------------------------------- Determine own load
824: my $loadlim = $r->dir_config('lonLoadLim');
825: my $loadavg;
826: {
827: my $loadfile=Apache::File->new('/proc/loadavg');
828: $loadavg=<$loadfile>;
829: }
830: $loadavg =~ s/\s.*//g;
831: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
832: my $userloadpercent=&Apache::lonnet::userload();
833:
834: # ---------------------------------------------------------- Are we overloaded?
835: if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
1.163 raeburn 836: my $unloaded=Apache::lonnet::spareserver($r,$loadpercent,$userloadpercent,1,$form{'udom'});
1.136 kruse 837: if (!$unloaded) {
838: ($unloaded) = &Apache::lonnet::choose_server($form{'udom'});
839: }
840: if ($unloaded) {
841: &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',
842: undef,\%form);
1.156 raeburn 843: if ($form{'linkprot'}) {
844: $env{'request.linkprot'} = $form{'linkprot'};
1.167 raeburn 845: } elsif ($form{'linkkey'} ne '') {
1.164 raeburn 846: $env{'request.linkkey'} = $form{'linkkey'};
847: }
848: if ($form{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
849: &set_deeplink_login(%form);
1.156 raeburn 850: }
1.136 kruse 851: $r->internal_redirect('/adm/switchserver?otherserver='.$unloaded.'&origurl='.$firsturl);
852: return OK;
853: }
854: }
1.141 raeburn 855: if (($is_balancer) && ($hosthere)) {
856: $form{'noloadbalance'} = $hosthere;
857: }
1.156 raeburn 858: my $extra_env;
1.169 raeburn 859: if (($hosthere) && ($sessiondata{'sessionserver'} ne '')) {
860: if ($sessiondata{'origurl'} ne '') {
861: $firsturl = $sessiondata{'origurl'};
862: $form{'firsturl'} = $sessiondata{'origurl'};
863: my @names = ('role','symb','linkprot','linkkey');
864: foreach my $item (@names) {
865: if ($sessiondata{$item} ne '') {
866: $form{$item} = $sessiondata{$item};
867: }
868: }
869: }
870: }
1.156 raeburn 871: if ($form{'linkprot'}) {
872: my ($linkprotector,$uri) = split(/:/,$form{'linkprot'},2);
873: if ($linkprotector) {
874: $extra_env = {'user.linkprotector' => $linkprotector,
1.164 raeburn 875: 'user.linkproturi' => $uri};
1.156 raeburn 876: }
1.167 raeburn 877: } elsif ($form{'linkkey'} ne '') {
1.166 raeburn 878: $extra_env = {'user.deeplinkkey' => $form{'linkkey'},
1.164 raeburn 879: 'user.keyedlinkuri' => $form{'firsturl'}};
880: }
881: if ($form{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
882: &set_deeplink_login(%form);
1.166 raeburn 883: if ($form{'linkprot'}) {
884: if (ref($extra_env) eq 'HASH') {
885: %{$extra_env} = ( %{$extra_env}, 'request.linkprot' => $form{'linkprot'} );
886: } else {
887: $extra_env = {'request.linkprot' => $form{'linkprot'}};
888: }
1.167 raeburn 889: } elsif ($form{'linkkey'} ne '') {
1.166 raeburn 890: if (ref($extra_env) eq 'HASH') {
891: %{$extra_env} = ( %{$extra_env}, 'request.linkkey' => $form{'linkkey'} );
892: } else {
893: $extra_env = {'request.linkkey' => $form{'linkkey'}};
894: }
895: }
1.164 raeburn 896: if ($env{'request.deeplink.login'}) {
897: if (ref($extra_env) eq 'HASH') {
898: %{$extra_env} = ( %{$extra_env}, 'request.deeplink.login' => $form{'firsturl'} );
899: } else {
900: $extra_env = {'request.deeplink.login' => $form{'firsturl'}};
901: }
1.157 raeburn 902: }
1.156 raeburn 903: }
904: &success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,$extra_env,
1.136 kruse 905: \%form);
906: return OK;
907: }
908: }
909:
1.169 raeburn 910: sub get_form_items {
911: my ($r) = @_;
912: my $buffer;
913: if ($r->header_in('Content-length') > 0) {
914: $r->read($buffer,$r->header_in('Content-length'),0);
915: }
916: my %form;
917: foreach my $pair (split(/&/,$buffer)) {
918: my ($name,$value) = split(/=/,$pair);
919: $value =~ tr/+/ /;
920: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
921: $form{$name}=$value;
922: }
923: return %form;
924: }
925:
1.164 raeburn 926: sub set_deeplink_login {
927: my (%form) = @_;
1.169 raeburn 928: my $disallow;
1.164 raeburn 929: if ($form{'firsturl'} =~ m{^/tiny/($match_domain)/\w+$}) {
930: my $cdom = $1;
931: my ($cnum,$symb) = &Apache::loncommon::symb_from_tinyurl($form{'firsturl'},'',$cdom);
932: if ($symb) {
1.166 raeburn 933: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
1.169 raeburn 934: my $deeplink;
1.166 raeburn 935: if ($symb =~ /\.(page|sequence)$/) {
936: my $mapname = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($symb))[2]);
937: my $navmap = Apache::lonnavmaps::navmap->new();
938: if (ref($navmap)) {
939: $deeplink = $navmap->get_mapparam(undef,$mapname,'0.deeplink');
940: }
941: } else {
942: $deeplink = &Apache::lonnet::EXT('resource.0.deeplink',$symb);
943: }
944: if ($deeplink ne '') {
945: my ($state,$others,$listed,$scope,$protect) = split(/,/,$deeplink);
946: if (($protect ne 'none') && ($protect ne '')) {
947: my ($acctype,$item) = split(/:/,$protect);
948: if ($acctype =~ /lti(c|d)$/) {
949: unless ($form{'linkprot'} eq $item.$1.':'.$env{'request.deeplink.login'}) {
950: $disallow = 1;
951: }
952: } elsif ($acctype eq 'key') {
953: unless ($form{'linkkey'} eq $item) {
954: $disallow = 1;
955: }
1.164 raeburn 956: }
957: }
958: }
1.166 raeburn 959: unless ($disallow) {
960: $env{'request.deeplink.login'} = $form{'firsturl'};
961: }
962: } else {
1.164 raeburn 963: $env{'request.deeplink.login'} = $form{'firsturl'};
964: }
965: }
966: }
1.169 raeburn 967: if ($disallow) {
968: return;
969: }
970: return 'ok';
1.164 raeburn 971: }
972:
1.168 raeburn 973: sub set_retry_token {
974: my ($form,$lonhost,$querystr) = @_;
975: if (ref($form) eq 'HASH') {
976: my ($firsturl,$token,$extras,@names);
1.169 raeburn 977: @names = ('role','symb','linkprot','linkkey','iptoken');
1.168 raeburn 978: foreach my $name (@names) {
979: if ($form->{$name} ne '') {
980: $extras .= '&'.$name.'='.&escape($form->{$name});
981: last if ($name eq 'linkprot');
982: }
983: }
984: my $firsturl = $form->{'firsturl'};
985: if (($firsturl ne '') || ($extras ne '')) {
986: $extras .= ':retry';
987: $token = &Apache::lonnet::reply('tmpput:'.&escape($firsturl).
988: $extras,$lonhost);
989: if (($token eq 'con_lost') || ($token eq 'no_such_host')) {
990: return 'fail';
991: } else {
992: if (ref($querystr)) {
993: $$querystr = 'retry='.$token;
994: }
995: return 'ok';
996: }
997: }
998: }
999: return;
1000: }
1001:
1.136 kruse 1002: sub check_can_host {
1003: my ($r,$form,$authhost,$domdesc) = @_;
1004: return unless (ref($form) eq 'HASH');
1005: my $canhost = 1;
1006: my $lonhost = $r->dir_config('lonHostID');
1007: my $udom = $form->{'udom'};
1008: my @intdoms;
1009: my $internet_names = &Apache::lonnet::get_internet_names($lonhost);
1010: if (ref($internet_names) eq 'ARRAY') {
1011: @intdoms = @{$internet_names};
1012: }
1013: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1014: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
1015: unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {
1016: my $machine_dom = &Apache::lonnet::host_domain($lonhost);
1017: my $hostname = &Apache::lonnet::hostname($lonhost);
1018: my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname);
1019: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
1020: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1021: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
1022: my $loncaparev;
1023: if ($authhost eq 'no_account_on_host') {
1024: $loncaparev = &Apache::lonnet::get_server_loncaparev($machine_dom);
1025: } else {
1026: $loncaparev = &Apache::lonnet::get_server_loncaparev($machine_dom,$lonhost);
1027: }
1028: $canhost = &Apache::lonnet::can_host_session($udom,$lonhost,$loncaparev,
1029: $udomdefaults{'remotesessions'},
1030: $defdomdefaults{'hostedsessions'});
1031: }
1032: unless ($canhost) {
1033: if ($authhost eq 'no_account_on_host') {
1034: my $checkloginvia = 1;
1035: my ($login_host,$hostname) =
1036: &Apache::lonnet::choose_server($udom,$checkloginvia);
1037: &Apache::loncommon::content_type($r,'text/html');
1038: $r->send_http_header;
1039: if ($login_host ne '') {
1040: my $protocol = $Apache::lonnet::protocol{$login_host};
1041: $protocol = 'http' if ($protocol ne 'https');
1.163 raeburn 1042: my $alias = &Apache::lonnet::use_proxy_alias($r,$login_host);
1043: $hostname = $alias if ($alias ne '');
1.136 kruse 1044: my $newurl = $protocol.'://'.$hostname.'/adm/createaccount';
1.156 raeburn 1045: #FIXME Should preserve where user was going and linkprot by setting ltoken at $login_host
1.136 kruse 1046: $r->print(&Apache::loncommon::start_page('Create a user account in LON-CAPA').
1047: '<h3>'.&mt('Account creation').'</h3>'.
1048: &mt('You do not currently have a LON-CAPA account at this institution.').'<br />'.
1049: '<p>'.&mt('You will be able to create one by logging into a LON-CAPA server within the [_1] domain.',$domdesc).'</p>'.
1050: '<p>'.&mt('[_1]Log in[_2]','<a href="'.$newurl.'">','</a>').
1051: &Apache::loncommon::end_page());
1052: } else {
1053: $r->print(&Apache::loncommon::start_page('Access to LON-CAPA unavailable').
1054: '<h3>'.&mt('Account creation unavailable').'</h3>'.
1055: &mt('You do not currently have a LON-CAPA account at this institution.').'<br />'.
1056: '<p>'.&mt('Currently a LON-CAPA server is not available within the [_1] domain for you to log-in to, to create an account.',$domdesc).'</p>'.
1057: &Apache::loncommon::end_page());
1058: }
1059: } else {
1060: &success($r,$form->{'uname'},$udom,$authhost,'noredirect',undef,
1061: $form);
1.168 raeburn 1062: if ($form->{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
1063: $env{'request.deeplink.login'} = $form->{'firsturl'};
1064: }
1.156 raeburn 1065: if ($form->{'linkprot'}) {
1066: $env{'request.linkprot'} = $form->{'linkprot'};
1.168 raeburn 1067: } elsif ($form->{'linkkey'} ne '') {
1068: $env{'request.linkkey'} = $form->{'linkkey'};
1.156 raeburn 1069: }
1.136 kruse 1070: my ($otherserver) = &Apache::lonnet::choose_server($udom);
1071: $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver);
1072: }
1073: }
1074: return $canhost;
1075: }
1076:
1077: sub noswitch {
1078: my $result = &Apache::loncommon::start_page('Access to LON-CAPA unavailable').
1079: '<h3>'.&mt('Session unavailable').'</h3>'.
1080: &mt('This LON-CAPA server is unable to host your session.').'<br />'.
1081: '<p>'.&mt('Currently no other LON-CAPA server is available to host your session either.').'</p>'.
1082: &Apache::loncommon::end_page();
1083: return $result;
1084: }
1085:
1086: sub loginhelpdisplay {
1087: my ($authdomain) = @_;
1088: my $login_help = 1;
1089: my $lang = &Apache::lonlocal::current_language();
1090: if ($login_help) {
1091: my $dom = $authdomain;
1092: if ($dom eq '') {
1093: $dom = &Apache::lonnet::default_login_domain();
1094: }
1095: my %domconfhash = &Apache::loncommon::get_domainconf($dom);
1096: my $loginhelp_url;
1097: if ($lang) {
1098: $loginhelp_url = $domconfhash{$dom.'.login.helpurl_'.$lang};
1099: if ($loginhelp_url ne '') {
1100: return $loginhelp_url;
1101: }
1102: }
1103: $loginhelp_url = $domconfhash{$dom.'.login.helpurl_nolang'};
1104: if ($loginhelp_url ne '') {
1105: return $loginhelp_url;
1106: } else {
1107: return '/adm/loginproblems.html';
1108: }
1109: }
1110: return;
1111: }
1112:
1.172 ! raeburn 1113: sub alternate_unames_check {
! 1114: my ($uname,$udom) = @_;
! 1115: my %possunames;
! 1116: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
! 1117: if (ref($domdefs{'unamemap_rule'}) eq 'ARRAY') {
! 1118: if (@{$domdefs{'unamemap_rule'}} > 0) {
! 1119: %possunames =
! 1120: &Apache::lonnet::inst_rulecheck($udom,$uname,undef,
! 1121: 'unamemap',$domdefs{'unamemap_rule'});
! 1122: }
! 1123: }
! 1124: return %possunames;
! 1125: }
! 1126:
1.136 kruse 1127: 1;
1128: __END__
1129:
1130:
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