Annotation of loncom/auth/lonauth.pm, revision 1.110
1.1 albertel 1: # The LearningOnline Network
2: # User Authentication Module
1.27 www 3: #
1.110 ! raeburn 4: # $Id: lonauth.pm,v 1.109 2010/08/25 16:34:32 raeburn Exp $
1.27 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.1 albertel 28:
29: package Apache::lonauth;
30:
1.18 albertel 31: use strict;
1.78 albertel 32: use LONCAPA;
1.1 albertel 33: use Apache::Constants qw(:common);
34: use CGI qw(:standard);
1.26 harris41 35: use DynaLoader; # for Crypt::DES version
1.8 www 36: use Crypt::DES;
1.45 matthew 37: use Apache::loncommon();
1.66 albertel 38: use Apache::lonnet;
1.12 www 39: use Apache::lonmenu();
1.90 raeburn 40: use Apache::createaccount;
1.18 albertel 41: use Fcntl qw(:flock);
1.56 www 42: use Apache::lonlocal;
1.109 raeburn 43: use Apache::File ();
1.101 raeburn 44: use HTML::Entities;
1.85 albertel 45:
1.1 albertel 46: # ------------------------------------------------------------ Successful login
1.85 albertel 47: sub success {
48: my ($r, $username, $domain, $authhost, $lowerurl, $extra_env,
49: $form) = @_;
1.1 albertel 50:
1.85 albertel 51: # ------------------------------------------------------------ Get cookie ready
52: my $cookie =
53: &Apache::loncommon::init_user_environment($r, $username, $domain,
54: $authhost, $form,
1.86 albertel 55: {'extra_env' => $extra_env,});
1.4 www 56:
1.69 albertel 57: my $public=($username eq 'public' && $domain eq 'public');
58:
1.85 albertel 59: if ($public or $lowerurl eq 'noredirect') { return $cookie; }
1.78 albertel 60:
1.7 www 61: # -------------------------------------------------------------------- Log this
62:
63: &Apache::lonnet::log($domain,$username,$authhost,
64: "Login $ENV{'REMOTE_ADDR'}");
1.4 www 65:
1.14 www 66: # ------------------------------------------------- Check for critical messages
67:
1.21 www 68: my @what=&Apache::lonnet::dump('critical',$domain,$username);
1.14 www 69: if ($what[0]) {
1.22 www 70: if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {
1.21 www 71: $lowerurl='/adm/email?critical=display';
1.14 www 72: }
73: }
74:
1.5 www 75: # ------------------------------------------------------------ Get cookie ready
1.1 albertel 76: $cookie="lonID=$cookie; path=/";
1.12 www 77: # -------------------------------------------------------- Menu script and info
1.100 raeburn 78: my $destination = $lowerurl;
79:
80: if (defined($form->{role})) {
81: my $envkey = 'user.role.'.$form->{role};
82: my $now=time;
83: my $then=$env{'user.login.time'};
84: my $refresh=$env{'user.refresh.time'};
85: if (exists($env{$envkey})) {
86: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus);
87: &Apache::lonnet::role_status($envkey,$then,$refresh,$now,\$role,\$where,
88: \$trolecode,\$tstatus,\$tstart,\$tend);
89: if ($tstatus eq 'is') {
1.101 raeburn 90: $destination .= ($destination =~ /\?/) ? '&' : '?';
91: my $newrole = &HTML::Entities::encode($form->{role},'"<>&');
92: $destination .= 'selectrole=1&'.$newrole.'=1';
1.100 raeburn 93: }
94: }
95: }
1.101 raeburn 96: if (defined($form->{symb})) {
97: my $destsymb = $form->{symb};
98: $destination .= ($destination =~ /\?/) ? '&' : '?';
99: if ($destsymb =~ /___/) {
100: # FIXME Need to deal with encrypted symbs and urls as needed.
101: my ($map,$resid,$desturl)=split(/___/,$destsymb);
102: unless ($desturl=~/^(adm|uploaded|editupload|public)/) {
103: $desturl = &Apache::lonnet::clutter($desturl);
104: }
105: $desturl = &HTML::Entities::encode($desturl,'"<>&');
106: $destsymb = &HTML::Entities::encode($destsymb,'"<>&');
107: $destination .= '&destinationurl='.$desturl.
108: '&destsymb='.$destsymb;
109: } else {
110: $destsymb = &HTML::Entities::encode($destsymb,'"<>&');
111: $destination .= '&destinationurl='.$destsymb;
112: }
113: }
1.100 raeburn 114:
1.102 droeschl 115: my $windowinfo = Apache::lonhtmlcommon::scripttag('self.name="loncapaclient";');
116: my $header = '<meta HTTP-EQUIV="Refresh" CONTENT="0; url='.$destination.'" />';
1.99 bisitz 117: my $brcrum = [{'href' => '',
118: 'text' => 'Successful Login'},];
1.74 albertel 119: my $start_page=&Apache::loncommon::start_page('Successful Login',
1.102 droeschl 120: $header,
1.104 droeschl 121: {'bread_crumbs' => $brcrum,});
1.74 albertel 122: my $end_page =&Apache::loncommon::end_page();
123:
1.102 droeschl 124: my $continuelink='<a href="'.$destination.'">'.&mt('Continue').'</a>';
1.5 www 125: # ------------------------------------------------- Output for successful login
126:
1.74 albertel 127: &Apache::loncommon::content_type($r,'text/html');
128: $r->header_out('Set-cookie' => $cookie);
129: $r->send_http_header;
1.1 albertel 130:
1.58 www 131: my %lt=&Apache::lonlocal::texthash(
132: 'wel' => 'Welcome',
1.92 bisitz 133: 'mes' => 'Welcome to the Learning<i>Online</i> Network with CAPA. Please wait while your session is being set up.',
134: 'pro' => 'Login problems?',
1.58 www 135: 'log' => 'loginproblems.html',
136: );
1.1 albertel 137: $r->print(<<ENDSUCCESS);
1.74 albertel 138: $start_page
1.19 www 139: $windowinfo
1.58 www 140: <h1>$lt{'wel'}</h1>
1.92 bisitz 141: $lt{'mes'}<p>
142: <a href="/adm/$lt{'log'}">$lt{'pro'}</a></p>
1.64 albertel 143: $continuelink
1.74 albertel 144: $end_page
1.1 albertel 145: ENDSUCCESS
146: }
147:
148: # --------------------------------------------------------------- Failed login!
149:
150: sub failed {
1.85 albertel 151: my ($r,$message,$form) = @_;
1.104 droeschl 152: my $start_page = &Apache::loncommon::start_page('Unsuccessful Login',undef);
1.100 raeburn 153: my $retry = '/adm/login?username='.$form->{'uname'}.
154: '&domain='.$form->{'udom'};
155: if (exists($form->{role})) {
156: $retry .= '&role='.$form->{role};
157: }
158: if (exists($form->{symb})) {
159: $retry .= '&symb='.$form->{symb};
160: }
1.74 albertel 161: my $end_page = &Apache::loncommon::end_page();
162: &Apache::loncommon::content_type($r,'text/html');
163: $r->send_http_header;
1.92 bisitz 164: $r->print(
165: $start_page
166: .'<h1>'.&mt('Sorry ...').'</h1>'
1.95 bisitz 167: .'<p class="LC_warning">'.&mt($message).'</p>'
1.100 raeburn 168: .'<p>'.&mt('Please [_1]log in again[_2].','<a href="'.$retry.'">','</a>')
1.92 bisitz 169: .'</p>'
170: .'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'
171: .$end_page
172: );
173: }
1.60 www 174:
1.55 www 175: # ------------------------------------------------------------------ Rerouting!
176:
177: sub reroute {
1.74 albertel 178: my ($r) = @_;
179: &Apache::loncommon::content_type($r,'text/html');
180: $r->send_http_header;
1.92 bisitz 181: my $msg='<h1>'.&mt('Sorry ...').'</h1>'
182: .&mt('Please [_1]log in again[_2].');
1.74 albertel 183: &Apache::loncommon::simple_error_page($r,'Rerouting',$msg);
1.55 www 184: }
185:
1.1 albertel 186: # ---------------------------------------------------------------- Main handler
187:
188: sub handler {
189: my $r = shift;
1.85 albertel 190: my $form;
1.55 www 191: # Are we re-routing?
192: if (-e '/home/httpd/html/lon-status/reroute.txt') {
193: &reroute($r);
194: return OK;
195: }
1.56 www 196:
1.57 www 197: &Apache::lonlocal::get_language_handle($r);
1.1 albertel 198:
1.59 www 199: # -------------------------------- Prevent users from attempting to login twice
1.89 albertel 200: my $handle = &Apache::lonnet::check_for_valid_session($r);
201: if ($handle ne '') {
1.103 raeburn 202: my $lonidsdir=$r->dir_config('lonIDsDir');
203: if ($handle=~/^publicuser\_/) {
204: # For "public user" - remove it, we apparently really want to login
205: unlink($r->dir_config('lonIDsDir')."/$handle.id");
206: } else {
1.59 www 207: # Indeed, a valid token is found
1.103 raeburn 208: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
209: &Apache::loncommon::content_type($r,'text/html');
210: $r->send_http_header;
211: my $start_page =
212: &Apache::loncommon::start_page('Already logged in');
213: my $end_page =
214: &Apache::loncommon::end_page();
1.105 raeburn 215: my $dest = '/adm/roles';
216: if ($env{'form.firsturl'} ne '') {
217: $dest = $env{'form.firsturl'};
218: }
1.103 raeburn 219: $r->print(
220: $start_page
221: .'<h1>'.&mt('You are already logged in!').'</h1>'
222: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].'
1.105 raeburn 223: ,'<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>')
1.103 raeburn 224: .'</p>'
225: .$end_page
226: );
227: return OK;
228: }
1.59 www 229: }
230:
231: # ---------------------------------------------------- No valid token, continue
232:
233:
1.1 albertel 234: my $buffer;
1.84 albertel 235: if ($r->header_in('Content-length') > 0) {
236: $r->read($buffer,$r->header_in('Content-length'),0);
237: }
1.85 albertel 238: my %form;
239: foreach my $pair (split(/&/,$buffer)) {
240: my ($name,$value) = split(/=/,$pair);
1.7 www 241: $value =~ tr/+/ /;
242: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.85 albertel 243: $form{$name}=$value;
1.1 albertel 244: }
245:
1.85 albertel 246: if ((!$form{'uname'}) || (!$form{'upass0'}) || (!$form{'udom'})) {
247: &failed($r,'Username, password and domain need to be specified.',
248: \%form);
1.1 albertel 249: return OK;
250: }
1.61 www 251:
252: # split user logging in and "su"-user
253:
1.85 albertel 254: ($form{'uname'},$form{'suname'})=split(/\:/,$form{'uname'});
1.87 albertel 255: $form{'uname'} = &LONCAPA::clean_username($form{'uname'});
256: $form{'suname'}= &LONCAPA::clean_username($form{'suname'});
257: $form{'udom'} = &LONCAPA::clean_domain( $form{'udom'});
1.1 albertel 258:
259: my $role = $r->dir_config('lonRole');
260: my $domain = $r->dir_config('lonDefDomain');
261: my $prodir = $r->dir_config('lonUsersDir');
1.93 raeburn 262: my $contact_name = &mt('LON-CAPA helpdesk');
1.1 albertel 263:
1.8 www 264: # ---------------------------------------- Get the information from login token
265:
1.85 albertel 266: my $tmpinfo=Apache::lonnet::reply('tmpget:'.$form{'logtoken'},
267: $form{'serverid'});
1.8 www 268:
269: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
1.85 albertel 270: &failed($r,'Information needed to verify your login information is missing, inaccessible or expired.',\%form);
1.8 www 271: return OK;
1.44 www 272: } else {
1.85 albertel 273: my $reply = &Apache::lonnet::reply('tmpdel:'.$form{'logtoken'},
274: $form{'serverid'});
1.77 albertel 275: if ( $reply ne 'ok' ) {
1.85 albertel 276: &failed($r,'Session could not be opened.',\%form);
277: &Apache::lonnet::logthis("ERROR got a reply of $reply when trying to contact ". $form{'serverid'}." to get login token");
1.77 albertel 278: return OK;
1.44 www 279: }
1.8 www 280: }
1.100 raeburn 281:
1.93 raeburn 282: if (!&Apache::lonnet::domain($form{'udom'})) {
283: &failed($r,'The domain you provided is not a valid LON-CAPA domain.',\%form);
284: return OK;
285: }
1.100 raeburn 286:
287: my ($key,$firsturl,$rolestr,$symbstr)=split(/&/,$tmpinfo);
288: if ($rolestr) {
289: $rolestr = &unescape($rolestr);
290: }
291: if ($symbstr) {
292: $symbstr= &unescape($symbstr);
293: }
294: if ($rolestr =~ /^role=/) {
295: (undef,$form{'role'}) = split('=',$rolestr);
296: }
297: if ($symbstr =~ /^symb=/) {
298: (undef,$form{'symb'}) = split('=',$symbstr);
299: }
1.8 www 300:
301: my $keybin=pack("H16",$key);
302:
1.26 harris41 303: my $cipher;
304: if ($Crypt::DES::VERSION>=2.03) {
305: $cipher=new Crypt::DES $keybin;
306: }
307: else {
308: $cipher=new DES $keybin;
309: }
1.67 www 310: my $upass='';
311: for (my $i=0;$i<=2;$i++) {
312: my $chunk=
1.85 albertel 313: $cipher->decrypt(unpack("a8",pack("H16",substr($form{'upass'.$i},0,16))));
1.8 www 314:
1.67 www 315: $chunk.=
1.85 albertel 316: $cipher->decrypt(unpack("a8",pack("H16",substr($form{'upass'.$i},16,16))));
1.8 www 317:
1.67 www 318: $chunk=substr($chunk,1,ord(substr($chunk,0,1)));
319: $upass.=$chunk;
320: }
1.8 www 321:
1.1 albertel 322: # ---------------------------------------------------------------- Authenticate
1.91 raeburn 323: my @cancreate;
1.90 raeburn 324: my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$form{'udom'});
325: if (ref($domconfig{'usercreation'}) eq 'HASH') {
326: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
1.91 raeburn 327: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
328: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
329: } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
330: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
331: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
1.90 raeburn 332: }
333: }
334: }
335: my $defaultauth;
1.91 raeburn 336: if (grep(/^login$/,@cancreate)) {
1.90 raeburn 337: $defaultauth = 1;
338: }
1.105 raeburn 339: my $clientcancheckhost = 1;
1.90 raeburn 340: my $authhost=Apache::lonnet::authenticate($form{'uname'},$upass,
1.105 raeburn 341: $form{'udom'},$defaultauth,
342: $clientcancheckhost);
1.1 albertel 343:
344: # --------------------------------------------------------------------- Failed?
345:
346: if ($authhost eq 'no_host') {
1.85 albertel 347: &failed($r,'Username and/or password could not be authenticated.',
348: \%form);
1.1 albertel 349: return OK;
1.90 raeburn 350: } elsif ($authhost eq 'no_account_on_host') {
351: my %domconfig =
352: &Apache::lonnet::get_dom('configuration',['usercreation'],$form{'udom'});
1.91 raeburn 353: if (grep(/^login$/,@cancreate)) {
1.105 raeburn 354: my $domdesc = &Apache::lonnet::domain($form{'udom'},'description');
1.110 ! raeburn 355: unless (&check_can_host($r,\%form,'no_account_on_host',$domdesc)) {
! 356: return OK;
! 357: }
1.90 raeburn 358: my $start_page =
1.104 droeschl 359: &Apache::loncommon::start_page('Create a user account in LON-CAPA');
1.93 raeburn 360: my $lonhost = $r->dir_config('lonHostID');
361: my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
362: my $contacts =
363: &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
364: $form{'udom'},$origmail);
365: my ($contact_email) = split(',',$contacts);
1.94 raeburn 366: my $output = &Apache::createaccount::username_check($form{'uname'},
367: $form{'udom'},$domdesc,'',
368: $lonhost,$contact_email,$contact_name);
1.90 raeburn 369: &Apache::loncommon::content_type($r,'text/html');
370: $r->send_http_header;
371: &Apache::createaccount::print_header($r,$start_page);
1.94 raeburn 372: $r->print('<h3>'.&mt('Account creation').'</h3>'.
373: &mt('Although your username and password were authenticated, you do not currently have a LON-CAPA account at this institution.').'<br />'.
374: $output.&Apache::loncommon::end_page());
1.90 raeburn 375: return OK;
376: } else {
377: &failed($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);
378: return OK;
379: }
1.1 albertel 380: }
381:
1.59 www 382: if (($firsturl eq '') ||
383: ($firsturl=~/^\/adm\/(logout|remote)/)) {
1.24 www 384: $firsturl='/adm/roles';
1.7 www 385: }
1.61 www 386: # --------------------------------- Are we attempting to login as somebody else?
1.85 albertel 387: if ($form{'suname'}) {
1.61 www 388: # ------------ see if the original user has enough privileges to pull this stunt
1.85 albertel 389: if (&Apache::lonnet::privileged($form{'uname'},$form{'udom'})) {
1.61 www 390: # ---------------------------------------------------- see if the su-user exists
1.85 albertel 391: unless (&Apache::lonnet::homeserver($form{'suname'},$form{'udom'})
1.61 www 392: eq 'no_host') {
1.85 albertel 393: &Apache::lonnet::logthis(&Apache::lonnet::homeserver($form{'suname'},$form{'udom'}));
1.61 www 394: # ------------------------------ see if the su-user is not too highly privileged
1.85 albertel 395: unless (&Apache::lonnet::privileged($form{'suname'},$form{'udom'})) {
1.61 www 396: # -------------------------------------------------------- actually switch users
1.85 albertel 397: &Apache::lonnet::logperm('User '.$form{'uname'}.' at '.$form{'udom'}.
398: ' logging in as '.$form{'suname'});
399: $form{'uname'}=$form{'suname'};
1.61 www 400: } else {
401: &Apache::lonnet::logthis('Attempted switch user to privileged user');
402: }
403: }
404: } else {
405: &Apache::lonnet::logthis('Non-privileged user attempting switch user');
406: }
407: }
1.85 albertel 408:
1.110 ! raeburn 409: unless (&check_can_host($r,\%form,$authhost)) {
! 410: return OK;
! 411: }
1.105 raeburn 412:
1.81 albertel 413: if ($r->dir_config("lonBalancer") eq 'yes') {
1.85 albertel 414: &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
415: \%form);
1.107 raeburn 416: my ($otherserver) = &Apache::lonnet::choose_server($form{'udom'});
1.109 raeburn 417: $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl);
1.110 ! raeburn 418: return OK;
1.81 albertel 419: } else {
1.109 raeburn 420: # ------------------------------------------------------- Do the load balancing
421:
422: # ---------------------------------------------------------- Determine own load
423: my $loadlim = $r->dir_config('lonLoadLim');
424: my $loadavg;
425: {
426: my $loadfile=Apache::File->new('/proc/loadavg');
427: $loadavg=<$loadfile>;
428: }
429: $loadavg =~ s/\s.*//g;
430: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
431: my $userloadpercent=&Apache::lonnet::userload();
432:
433: # ---------------------------------------------------------- Are we overloaded?
434: if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
435: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent,1,$form{'udom'});
436: if ($unloaded) {
437: &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',
438: undef,\%form);
439: $r->internal_redirect('/adm/switchserver?otherserver='.$unloaded.'&origurl='.$firsturl);
1.110 ! raeburn 440: return OK;
1.109 raeburn 441: }
442: }
443: &success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,undef,
444: \%form);
1.110 ! raeburn 445: return OK;
1.81 albertel 446: }
1.1 albertel 447: }
448:
1.105 raeburn 449: sub check_can_host {
450: my ($r,$form,$authhost,$domdesc) = @_;
451: return unless (ref($form) eq 'HASH');
452: my $canhost = 1;
1.106 raeburn 453: my $lonhost = $r->dir_config('lonHostID');
1.105 raeburn 454: my $udom = $form->{'udom'};
1.108 raeburn 455: my @intdoms;
456: my $internet_names = &Apache::lonnet::get_internet_names($lonhost);
457: if (ref($internet_names) eq 'ARRAY') {
458: @intdoms = @{$internet_names};
459: }
1.106 raeburn 460: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
461: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
462: unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {
463: my $machine_dom = &Apache::lonnet::host_domain($lonhost);
464: my $hostname = &Apache::lonnet::hostname($lonhost);
465: my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname);
466: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
467: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1.105 raeburn 468: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
469: my $loncaparev;
470: if ($authhost eq 'no_account_on_host') {
1.106 raeburn 471: $loncaparev = &Apache::lonnet::get_server_loncaparev($machine_dom);
1.105 raeburn 472: } else {
1.106 raeburn 473: $loncaparev = &Apache::lonnet::get_server_loncaparev($machine_dom,$lonhost);
1.105 raeburn 474: }
1.106 raeburn 475: $canhost = &Apache::lonnet::can_host_session($udom,$lonhost,$loncaparev,
476: $udomdefaults{'remotesessions'},
477: $defdomdefaults{'hostedsessions'});
1.105 raeburn 478: }
479: unless ($canhost) {
480: if ($authhost eq 'no_account_on_host') {
1.107 raeburn 481: my ($login_host,$hostname) = &Apache::lonnet::choose_server($udom);
1.105 raeburn 482: &Apache::loncommon::content_type($r,'text/html');
483: $r->send_http_header;
484: if ($login_host ne '') {
485: my $protocol = $Apache::lonnet::protocol{$login_host};
486: $protocol = 'http' if ($protocol ne 'https');
487: my $newurl = $protocol.'://'.$hostname.'/adm/createaccount';
488: $r->print(&Apache::loncommon::start_page('Create a user account in LON-CAPA').
489: '<h3>'.&mt('Account creation').'</h3>'.
490: &mt('You do not currently have a LON-CAPA account at this institution.').'<br />'.
491: '<p>'.&mt('You will be able to create one by logging into a LON-CAPA server within the [_1] domain.',$domdesc).'</p>'.
492: '<p>'.&mt('[_1]Log in[_2]','<a href="'.$newurl.'">','</a>').
493: &Apache::loncommon::end_page());
494: } else {
495: $r->print(&Apache::loncommon::start_page('Access to LON-CAPA unavailable').
496: '<h3>'.&mt('Account creation unavailable').'</h3>'.
497: &mt('You do not currently have a LON-CAPA account at this institution.').'<br />'.
498: '<p>'.&mt('Currently a LON-CAPA server is not available within the [_1] domain for you to log-in to, to create an account.',$domdesc).'</p>'.
499: &Apache::loncommon::end_page());
500: }
501: } else {
502: &success($r,$form->{'uname'},$udom,$authhost,'noredirect',undef,
503: $form);
1.107 raeburn 504: my ($otherserver) = &Apache::lonnet::choose_server($udom);
1.105 raeburn 505: $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver);
506: }
507: }
1.110 ! raeburn 508: return $canhost;
1.105 raeburn 509: }
510:
1.1 albertel 511: 1;
512: __END__
1.7 www 513:
514:
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