1: # The LearningOnline Network
2: # Allow visitors to create a user account with the username being either an
3: # institutional log-in ID (institutional authentication required - localauth
4: # or kerberos) or an e-mail address.
5: #
6: # $Id: createaccount.pm,v 1.12 2008/07/08 17:47:57 raeburn Exp $
7: #
8: # Copyright Michigan State University Board of Trustees
9: #
10: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
11: #
12: # LON-CAPA is free software; you can redistribute it and/or modify
13: # it under the terms of the GNU General Public License as published by
14: # the Free Software Foundation; either version 2 of the License, or
15: # (at your option) any later version.
16: #
17: # LON-CAPA is distributed in the hope that it will be useful,
18: # but WITHOUT ANY WARRANTY; without even the implied warranty of
19: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20: # GNU General Public License for more details.
21: #
22: # You should have received a copy of the GNU General Public License
23: # along with LON-CAPA; if not, write to the Free Software
24: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25: #
26: # /home/httpd/html/adm/gpl.txt
27: #
28: # http://www.lon-capa.org/
29: #
30: #
31: package Apache::createaccount;
32:
33: use strict;
34: use Apache::Constants qw(:common);
35: use Apache::lonacc;
36: use Apache::lonnet;
37: use Apache::loncommon;
38: use Apache::lonhtmlcommon;
39: use Apache::lonlocal;
40: use Apache::lonauth;
41: use Apache::resetpw;
42: use Authen::Captcha;
43: use DynaLoader; # for Crypt::DES version
44: use Crypt::DES;
45: use LONCAPA qw(:DEFAULT :match);
46: use HTML::Entities;
47:
48: sub handler {
49: my $r = shift;
50: &Apache::loncommon::content_type($r,'text/html');
51: $r->send_http_header;
52: if ($r->header_only) {
53: return OK;
54: }
55:
56: my $domain;
57:
58: my $sso_username = $r->subprocess_env->get('REDIRECT_SSOUserUnknown');
59: my $sso_domain = $r->subprocess_env->get('REDIRECT_SSOUserDomain');
60:
61: if ($sso_username ne '' && $sso_domain ne '') {
62: $domain = $sso_domain;
63: } else {
64: $domain = &Apache::lonnet::default_login_domain();
65: }
66: my $domdesc = &Apache::lonnet::domain($domain,'description');
67: my $contact_name = &mt('LON-CAPA helpdesk');
68: my $contact_email = $r->dir_config('lonSupportEMail');
69: my $lonhost = $r->dir_config('lonHostID');
70: my $include = $r->dir_config('lonIncludes');
71: my $start_page;
72:
73: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['token','courseid']);
74: &Apache::lonacc::get_posted_cgi($r);
75: &Apache::lonlocal::get_language_handle($r);
76:
77: my $handle = &Apache::lonnet::check_for_valid_session($r);
78: if ($handle ne '') {
79: $start_page =
80: &Apache::loncommon::start_page('Already logged in');
81: my $end_page =
82: &Apache::loncommon::end_page();
83: $r->print($start_page."\n".'<h2>'.&mt('You are already logged in').'</h2>'.
84: '<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]logout[_4].','<a href="/adm/roles">','</a>','<a href="/adm/logout">','</a>').
85: '</p><p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'.$end_page);
86: return OK;
87: }
88: $start_page =
89: &Apache::loncommon::start_page('Create a user account in LON-CAPA','',
90: {'no_inline_link' => 1,});
91: if ($env{'form.phase'} eq 'username_activation') {
92: if ($env{'form.udom'} ne '') {
93: $domain = $env{'form.udom'};
94: }
95: }
96: my @cancreate;
97: my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
98: if (ref($domconfig{'usercreation'}) eq 'HASH') {
99: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
100: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
101: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
102: } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
103: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
104: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
105: }
106: }
107: }
108:
109: if (@cancreate == 0) {
110: &print_header($r,$start_page);
111: my $output = &mt('Creation of a new user account using an e-mail address or an institutional log-in ID as username is not permitted in the domain: [_1] ([_2]).',$domain,$domdesc);
112: $r->print($output);
113: $r->print(&Apache::loncommon::end_page());
114: return OK;
115: }
116:
117: my $courseid;
118: if (defined($env{'form.courseid'})) {
119: $courseid = &validate_course($env{'form.courseid'});
120: }
121:
122: if ($sso_username ne '') {
123: &print_header($r,$start_page);
124: my ($output,$msg);
125: if (grep(/^sso$/,@cancreate)) {
126: $msg = &mt("Although your username and password were authenticated by your institution's Single Sign On system, you do not currently have a LON-CAPA account in this domain.");
127: ($output, my $checkfail) = &username_check($sso_username,$domain,
128: $domdesc,$courseid,
129: $lonhost,$contact_email);
130: if ($checkfail eq 'username') {
131: $msg .= &mt('A LON-CAPA account may not be created with the username you use.');
132: } elsif ($checkfail eq 'authtoken') {
133: $msg .= &mt('Error creating token.');
134: } else {
135: $msg .= &mt('To create one, use the table below to provide information about yourself (if appropriate), then click the "Create LON-CAPA account" button.');
136: }
137: } else {
138: $msg = &mt("Although your username and password were authenticated by your institution's Single Sign On system, you do not currently have a LON-CAPA account in this domain, and you are not permitted to create one.");
139: }
140: $r->print('<h4>'.$msg.'</h4>'.$output);
141: $r->print(&Apache::loncommon::end_page());
142: return OK;
143: }
144:
145: my ($output,$nostart,$noend);
146: my $token = $env{'form.token'};
147: if ($token) {
148: ($output,$nostart,$noend) =
149: &process_mailtoken($r,$token,$contact_name,$contact_email,$domain,
150: $domdesc,$lonhost,$include,$start_page);
151: if ($nostart) {
152: if ($noend) {
153: return OK;
154: } else {
155: $r->print($output);
156: $r->print(&Apache::loncommon::end_page());
157: return OK;
158: }
159: } else {
160: &print_header($r,$start_page);
161: $r->print($output);
162: $r->print(&Apache::loncommon::end_page());
163: return OK;
164: }
165: }
166:
167: if ($env{'form.phase'} eq 'username_activation') {
168: (my $result,$output,$nostart) =
169: &username_activation($r,$env{'form.uname'},$domain,$domdesc,
170: $lonhost,$courseid);
171: if ($result eq 'ok') {
172: if ($nostart) {
173: return OK;
174: }
175: }
176: &print_header($r,$start_page);
177: $r->print($output);
178: $r->print(&Apache::loncommon::end_page());
179: return OK;
180: }
181:
182: &print_header($r,$start_page);
183: if ($env{'form.create_with_email'}) {
184: $output = &process_email_request($env{'form.useremail'},$domain,$domdesc,
185: $contact_name,$contact_email,\@cancreate,
186: $lonhost,$domconfig{'usercreation'},
187: $courseid);
188: } elsif ($env{'form.phase'} eq 'username_validation') {
189: $output = &username_validation($env{'form.uname'},$domain,$domdesc,
190: $contact_name,$contact_email,$courseid,
191: $lonhost);
192: } elsif (!$token) {
193: my $now=time;
194: if (grep(/^login$/,@cancreate)) {
195: my $jsh=Apache::File->new($include."/londes.js");
196: $r->print(<$jsh>);
197: $r->print(&javascript_setforms($now));
198: }
199: if (grep(/^email$/,@cancreate)) {
200: $r->print(&javascript_validmail());
201: }
202: $output = &print_username_form($domain,$domdesc,\@cancreate,$now,$lonhost,
203: $courseid);
204: }
205: $r->print($output);
206: $r->print(&Apache::loncommon::end_page());
207: return OK;
208: }
209:
210: sub print_header {
211: my ($r,$start_page) = @_;
212: $r->print($start_page);
213: &Apache::lonhtmlcommon::clear_breadcrumbs();
214: &Apache::lonhtmlcommon::add_breadcrumb
215: ({href=>"/adm/createuser",
216: text=>"New username"});
217: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Create account'));
218: return;
219: }
220:
221: sub validate_course {
222: my ($courseid) = @_;
223: my ($cdom,$cnum) = ($courseid =~ /^($match_domain)_($match_courseid)$/);
224: if (($cdom ne '') && ($cnum ne '')) {
225: if (&Apache::lonnet::is_course($cdom,$cnum)) {
226: return ($courseid);
227: }
228: }
229: return;
230: }
231:
232: sub javascript_setforms {
233: my ($now) = @_;
234: my $js = <<ENDSCRIPT;
235: <script language="JavaScript">
236: function send() {
237: this.document.server.elements.uname.value = this.document.client.elements.uname.value;
238: uextkey=this.document.client.elements.uextkey.value;
239: lextkey=this.document.client.elements.lextkey.value;
240: initkeys();
241:
242: this.document.server.elements.upass.value
243: = crypted(this.document.client.elements.upass$now.value);
244:
245: this.document.client.elements.uname.value='';
246: this.document.client.elements.upass$now.value='';
247:
248: this.document.server.submit();
249: return false;
250: }
251: </script>
252: ENDSCRIPT
253: return $js;
254: }
255:
256: sub javascript_checkpass {
257: my ($now) = @_;
258: my $nopass = &mt('You must enter a password.');
259: my $mismatchpass = &mt('The passwords you entered did not match.').'\\n'.
260: &mt('Please try again.');
261: my $js = <<"ENDSCRIPT";
262: <script type="text/javascript" language="JavaScript">
263: function checkpass() {
264: var upass = this.document.client.elements.upass$now.value;
265: var upasscheck = this.document.client.elements.upasscheck$now.value;
266: if (upass == '') {
267: alert("$nopass");
268: return;
269: }
270: if (upass == upasscheck) {
271: this.document.client.elements.upasscheck$now.value='';
272: send();
273: return;
274: } else {
275: alert("$mismatchpass");
276: return;
277: }
278: }
279: </script>
280: ENDSCRIPT
281: return $js;
282: }
283:
284: sub javascript_validmail {
285: my %lt = &Apache::lonlocal::texthash (
286: email => 'The e-mail address you entered',
287: notv => 'is not a valid e-mail address',
288: );
289: my $output = "\n".'<script type="text/javascript">'."\n".
290: &Apache::lonhtmlcommon::javascript_valid_email()."\n";
291: $output .= <<"ENDSCRIPT";
292: function validate_email() {
293: field = document.createaccount.useremail;
294: if (validmail(field) == false) {
295: alert("$lt{'email'}: "+field.value+" $lt{'notv'}.");
296: return false;
297: }
298: return true;
299: }
300: ENDSCRIPT
301: $output .= "\n".'</script>'."\n";
302: return $output;
303: }
304:
305: sub print_username_form {
306: my ($domain,$domdesc,$cancreate,$now,$lonhost,$courseid) = @_;
307: my %lt = &Apache::lonlocal::texthash(
308: unam => 'username',
309: udom => 'domain',
310: uemail => 'Email address in LON-CAPA',
311: proc => 'Proceed');
312: my $output;
313: if (ref($cancreate) eq 'ARRAY') {
314: if (grep(/^login$/,@{$cancreate})) {
315: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
316: if ((($domdefaults{'auth_def'} =~/^krb/) && ($domdefaults{'auth_arg_def'} ne '')) || ($domdefaults{'auth_def'} eq 'localauth')) {
317: $output = '<div class="LC_left_float"><h3>'.&mt('Create account with a username provided by your institution').'</h3>';
318: $output .= &mt('If you already have a log-in ID at your institution,[_1] you may be able to use it for LON-CAPA.','<br />').'<br /><br />'.&mt('Type in your log-in ID and password to find out.').'<br /><br />';
319: my ($lkey,$ukey) = &Apache::lonpreferences::des_keys();
320: my ($lextkey,$uextkey) = &getkeys($lkey,$ukey);
321: my $logtoken=Apache::lonnet::reply('tmpput:'.$ukey.$lkey.'&createaccount',
322: $lonhost);
323: $output .= &serverform($logtoken,$lonhost,undef,$courseid);
324: my $unameform = '<input type="text" name="uname" size="10" value="" />';
325: my $upassform = '<input type="password" name="upass'.$now.'" size="10" />';
326: my $submit_text = &mt('Create LON-CAPA account');
327: $output .= '<form name="client" method="post" action="/adm/createaccount">'."\n".
328: &Apache::lonhtmlcommon::start_pick_box()."\n".
329: &Apache::lonhtmlcommon::row_title(&mt('Log-in ID'),
330: 'LC_pick_box_title')."\n".
331: $unameform."\n".
332: &Apache::lonhtmlcommon::row_closure(1)."\n".
333: &Apache::lonhtmlcommon::row_title(&mt('Password'),
334: 'LC_pick_box_title')."\n".
335: $upassform."\n".'<br /><br />'."\n".
336: '<input type="button" name="username_validation" value="'.
337: $submit_text.'" onclick="javascript:send()" />'."\n".
338: &Apache::lonhtmlcommon::row_closure(1)."\n".
339: &Apache::lonhtmlcommon::end_pick_box().'<br /><br />'."\n".
340: '<input type="hidden" name="lextkey" value="'.$lextkey.'">'."\n".
341: '<input type="hidden" name="uextkey" value="'.$uextkey.'">'."\n".
342: '</form></div>';
343: }
344: }
345: if (grep(/^email$/,@{$cancreate})) {
346: $output .= '<div class="LC_left_float"><h3>'.&mt('Create account with an e-mail address as your username').'</h3>';
347: if (grep(/^login$/,@{$cancreate})) {
348: $output .= &mt('Provide your e-mail address to request a LON-CAPA account,[_1] if you do not have a log-in ID at your institution.','<br />').'<br /><br />';
349: } else {
350: $output .= '<br />';
351: }
352: my $emailform = '<input type="text" name="useremail" size="25" value="" />';
353: my $captchaform = &create_captcha();
354: my $submit_text = &mt('Request LON-CAPA account');
355: $output .= '<form name="createaccount" method="post" onSubmit="return validate_email()" action="/adm/createaccount">'.
356: &Apache::lonhtmlcommon::start_pick_box()."\n".
357: &Apache::lonhtmlcommon::row_title(&mt('E-mail address'),
358: 'LC_pick_box_title')."\n".
359: $emailform."\n".
360: &Apache::lonhtmlcommon::row_closure(1).
361: &Apache::lonhtmlcommon::row_title(&mt('Validation'),
362: 'LC_pick_box_title')."\n".
363: $captchaform."\n".'<br /><br />';
364: if ($courseid ne '') {
365: $output .= '<input type="hidden" name="courseid" value="'.$courseid.'"/>'."\n";
366: }
367: $output .= '<input type="submit" name="create_with_email" value="'.
368: $submit_text.'" />'.
369: &Apache::lonhtmlcommon::row_closure(1).
370: &Apache::lonhtmlcommon::end_pick_box().'<br /><br /></form>'.
371: '</div>';
372: }
373: }
374: if ($output eq '') {
375: $output = &mt('Creation of a new user account using an e-mail address or an institutional log-in ID as your username is not permitted in the domain: [_1] ([_2])',$domain,$domdesc);
376: } else {
377: $output .= '<div class="LC_clear_float_footer"></div>';
378: }
379: return $output;
380: }
381:
382: sub process_email_request {
383: my ($useremail,$domain,$domdesc,$contact_name,$contact_email,$cancreate,
384: $server,$settings,$courseid) = @_;
385: my $useremail = $env{'form.useremail'};
386: my $output;
387: if (ref($cancreate) eq 'ARRAY') {
388: if (!grep(/^email$/,@{$cancreate})) {
389: $output = &invalid_state('noemails',$domdesc,
390: $contact_name,$contact_email);
391: return $output;
392: } elsif ($useremail !~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) {
393: $output = &invalid_state('baduseremail',$domdesc,
394: $contact_name,$contact_email);
395: return $output;
396: } else {
397: my $uhome = &Apache::lonnet::homeserver($useremail,$domain);
398: if ($uhome ne 'no_host') {
399: $output = &invalid_state('existinguser',$domdesc,
400: $contact_name,$contact_email);
401: return $output;
402: } else {
403: my $code = $env{'form.code'};
404: my $md5sum = $env{'form.crypt'};
405: my %captcha_params = &captcha_settings();
406: my $captcha = Authen::Captcha->new(
407: output_folder => $captcha_params{'output_dir'},
408: data_folder => $captcha_params{'db_dir'},
409: );
410: my $captcha_chk = $captcha->check_code($code,$md5sum);
411: my %captcha_hash = (
412: 0 => 'Code not checked (file error)',
413: -1 => 'Failed: code expired',
414: -2 => 'Failed: invalid code (not in database)',
415: -3 => 'Failed: invalid code (code does not match crypt)',
416: );
417: if ($captcha_chk != 1) {
418: $output = &invalid_state('captcha',$domdesc,$contact_name,
419: $contact_email,$captcha_hash{$captcha_chk});
420: return $output;
421: }
422: my (%rulematch,%inst_results,%curr_rules,%got_rules,%alerts);
423: my $uhome=&Apache::lonnet::homeserver($useremail,$domain);
424: if ($uhome eq 'no_host') {
425: my $checkhash;
426: my $checks = { 'username' => 1 };
427: $checkhash->{$useremail.':'.$domain} = { 'newuser' => 1, };
428: &Apache::loncommon::user_rule_check($checkhash,$checks,
429: \%alerts,\%rulematch,\%inst_results,\%curr_rules,
430: \%got_rules);
431: if (ref($alerts{'useremail'}) eq 'HASH') {
432: if (ref($alerts{'useremail'}{$domain}) eq 'HASH') {
433: if ($alerts{'username'}{$domain}{$useremail}) {
434: $output = &invalid_state('userrules',$domdesc,
435: $contact_name,$contact_email);
436: return $output;
437: }
438: }
439: }
440: my $format_msg =
441: &guest_format_check($useremail,$domain,$cancreate,
442: $settings);
443: if ($format_msg) {
444: $output = &invalid_state('userformat',$domdesc,$contact_name,
445: $contact_email,$format_msg);
446: return $output;
447: }
448: }
449: }
450: }
451: $output = &send_token($domain,$useremail,$server,$domdesc,$contact_name,
452: $contact_email,$courseid);
453: }
454: return $output;
455: }
456:
457: sub send_token {
458: my ($domain,$email,$server,$domdesc,$contact_name,$contact_email,$courseid) = @_;
459: my $msg = &mt('Thank you for your request to create a new LON-CAPA account.').'<br /><br />';
460: my $now = time;
461: my %info = ('ip' => $ENV{'REMOTE_ADDR'},
462: 'time' => $now,
463: 'domain' => $domain,
464: 'username' => $email,
465: 'courseid' => $courseid);
466: my $token = &Apache::lonnet::tmpput(\%info,$server);
467: if ($token !~ /^error/ && $token ne 'no_such_host') {
468: my $esc_token = &escape($token);
469: my $mailmsg = &mt('A request was submitted on [_1] for creation of a LON-CAPA account in the [_2] domain.',localtime(time),$domdesc).' '.
470: &mt('To complete this process please open a web browser and enter the following'
471: .' URL in the address/location box: [_1]'
472: ,&Apache::lonnet::absolute_url().'/adm/createaccount?token='.$esc_token);
473: my $result = &Apache::resetpw::send_mail($domdesc,$email,$mailmsg,$contact_name,
474: $contact_email);
475: if ($result eq 'ok') {
476: $msg .= &mt('A message has been sent to the e-mail address you provided.').'<br />'.&mt('The message includes the web address for the link you will use to complete the account creation process.').'<br />'.&mt("The link included in the message will be valid for the next [_1]two[_2] hours.",'<b>','</b>');
477: } else {
478: $msg .= &mt('An error occurred when sending a message to the e-mail address you provided.')
479: .' '.&mt('Please contact the [_1] ([_2]) for assistance.',$contact_name,$contact_email);
480: }
481: } else {
482: $msg .= &mt('An error occurred creating a token required for the account creation process.')
483: .' '.&mt('Please contact the [_1] ([_2]) for assistance.',$contact_name,$contact_email);
484: }
485: return $msg;
486: }
487:
488: sub process_mailtoken {
489: my ($r,$token,$contact_name,$contact_email,$domain,$domdesc,$lonhost,
490: $include,$start_page) = @_;
491: my ($msg,$nostart,$noend);
492: my %data = &Apache::lonnet::tmpget($token);
493: my $now = time;
494: if (keys(%data) == 0) {
495: $msg = &mt('Sorry, the URL you provided to complete creation of a new LON-CAPA account was invalid.')
496: .' '.&mt('Either the token included in the URL has been deleted or the URL you provided was invalid.')
497: .' '.&mt('Please submit a [_1]new request[_2] for account creation and follow the new link page included in the e-mail that will be sent to you.','<a href="/adm/createaccount">','</a>');
498: return $msg;
499: }
500: if (($data{'time'} =~ /^\d+$/) &&
501: ($data{'domain'} ne '') &&
502: ($data{'username'} =~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/)) {
503: if ($now - $data{'time'} < 7200) {
504: if ($env{'form.phase'} eq 'createaccount') {
505: my ($result,$output) = &create_account($r,$domain,$lonhost,
506: $data{'username'},$domdesc);
507: if ($result eq 'ok') {
508: $msg = $output;
509: my $shownow = localtime($now);
510: my $mailmsg = &mt('A LON-CAPA account in the [_1] domain has been created [_2] from IP address: [_3]. If you did not perform this action or authorize it, please contact the [_4] ([_5]).',$domdesc,$shownow,$ENV{'REMOTE_ADDR'},$contact_name,$contact_email)."\n";
511: my $mailresult = &Apache::resetpw::send_mail($domdesc,$data{'email'},
512: $mailmsg,$contact_name,
513: $contact_email);
514: if ($mailresult eq 'ok') {
515: $msg .= &mt('An e-mail confirming creation of your new LON-CAPA account has been sent to [_1].',$data{'username'});
516: } else {
517: $msg .= &mt('An error occurred when sending e-mail to [_1] confirming creation of your LON-CAPA account.',$data{'username'});
518: }
519: my %form = &start_session($r,$data{'username'},$domain,
520: $lonhost,$data{'courseid'},
521: $token);
522: $nostart = 1;
523: $noend = 1;
524: } else {
525: $msg .= &mt('A problem occurred when attempting to create your new LON-CAPA account.')
526: .'<br />'.$output
527: # .&mt('Please contact the [_1] ([_2]) for assistance.',$contact_name,'<a href="mailto:'.$contact_email.'">'.$contact_email.'</a>');
528: .&mt('Please contact the [_1] ([_2]) for assistance.',$contact_name,$contact_email);
529: }
530: my $delete = &Apache::lonnet::tmpdel($token);
531: } else {
532: $msg .= &mt('Please provide user information and a password for your new account.').'<br />'.&mt('Your password, which must contain at least seven characters, will be sent to the LON-CAPA server in an encrypted form.').'<br />';
533: $msg .= &print_dataentry_form($r,$domain,$lonhost,$include,$token,$now,$data{'username'},$start_page);
534: $nostart = 1;
535: }
536: } else {
537: $msg = &mt('Sorry, the token generated when you requested creation of an account has expired.')
538: .' '.&mt('Please submit a [_1]new request[_2] for account creation and follow the new link included in the e-mail that will be sent to you.','<a href="/adm/createaccount">','</a>');
539: }
540: } else {
541: $msg .= &mt('Sorry, the URL generated when you requested creation of an account contained incomplete information.')
542: .' '.&mt('Please submit a [_1]new request[_2] for account creation and follow the new link included in the e-mail that will be sent to you.','<a href="/adm/createaccount">','</a>');
543: }
544: return ($msg,$nostart,$noend);
545: }
546:
547: sub start_session {
548: my ($r,$username,$domain,$lonhost,$courseid,$token) = @_;
549: my %form = (
550: uname => $username,
551: udom => $domain,
552: );
553: my $firsturl = '/adm/roles';
554: if (defined($courseid)) {
555: $courseid = &validate_course($courseid);
556: if ($courseid ne '') {
557: $form{'courseid'} = $courseid;
558: $firsturl = '/adm/selfenroll?cid='.$courseid;
559: }
560: }
561: if ($r->dir_config('lonBalancer') eq 'yes') {
562: &Apache::lonauth::success($r,$form{'uname'},$form{'udom'},
563: $lonhost,'noredirect',undef,\%form);
564: my $delete = &Apache::lonnet::tmpdel($token);
565: $r->internal_redirect('/adm/switchserver');
566: } else {
567: &Apache::lonauth::success($r,$form{'uname'},$form{'udom'},
568: $lonhost,$firsturl,undef,\%form);
569: }
570: return %form;
571: }
572:
573:
574: sub print_dataentry_form {
575: my ($r,$domain,$lonhost,$include,$mailtoken,$now,$username,$start_page) = @_;
576: my ($error,$output);
577: &print_header($r,$start_page);
578: if (open(my $jsh,"<$include/londes.js")) {
579: while(my $line = <$jsh>) {
580: $r->print($line);
581: }
582: close($jsh);
583: $output .= &javascript_setforms($now)."\n".&javascript_checkpass($now);
584: my ($lkey,$ukey) = &Apache::lonpreferences::des_keys();
585: my ($lextkey,$uextkey) = &getkeys($lkey,$ukey);
586: my $logtoken=Apache::lonnet::reply('tmpput:'.$ukey.$lkey.'&createaccount',
587: $lonhost);
588: my @userinfo = ('firstname','middlename','lastname','generation','id',
589: 'permanentemail');
590: my %lt=&Apache::lonlocal::texthash(
591: 'pd' => "Personal Data",
592: 'firstname' => "First Name",
593: 'middlename' => "Middle Name",
594: 'lastname' => "Last Name",
595: 'generation' => "Generation",
596: 'permanentemail' => "Permanent e-mail address",
597: 'id' => "ID/Student Number",
598: 'lg' => "Login Data"
599: );
600: my %textboxsize = (
601: firstname => '15',
602: middlename => '15',
603: lastname => '15',
604: generation => '5',
605: id => '15',
606: );
607: my $genhelp=&Apache::loncommon::help_open_topic('Generation');
608: $output .= '<div class="LC_left_float"><h3>'.$lt{'pd'}.'</h3>'.
609: '<form name="server" method="post" target="_top" action="/adm/createaccount">'.
610: &Apache::lonhtmlcommon::start_pick_box();
611: foreach my $item (@userinfo) {
612: my $rowtitle = $lt{$item};
613: if ($item eq 'generation') {
614: $rowtitle = $genhelp.$rowtitle;
615: }
616: $output .= &Apache::lonhtmlcommon::row_title($rowtitle,undef,'LC_oddrow_value')."\n";
617: if ($item eq 'permanentemail') {
618: $output .= $username;
619: } else {
620: $output .= '<input type="text" name="c'.$item.'" size="'.$textboxsize{$item}.'" value="" />';
621: }
622: $output .= &Apache::lonhtmlcommon::row_closure(1);
623: }
624: $output .= &Apache::lonhtmlcommon::end_pick_box();
625: $output .= <<"ENDSERVERFORM";
626: <input type="hidden" name="logtoken" value="$logtoken" />
627: <input type="hidden" name="token" value="$mailtoken" />
628: <input type="hidden" name="serverid" value="$lonhost" />
629: <input type="hidden" name="uname" value="" />
630: <input type="hidden" name="upass" value="" />
631: <input type="hidden" name="phase" value="createaccount" />
632: </form></div>
633: ENDSERVERFORM
634: my $upassone = '<input type="password" name="upass'.$now.'" size="10" />';
635: my $upasstwo = '<input type="password" name="upasscheck'.$now.'" size="10" />';
636: my $submit_text = &mt('Create LON-CAPA account');
637: $output .= '<div class="LC_left_float"><h3>'.$lt{'lg'}.'</h3>'."\n".
638: '<form name="client" method="post" />'."\n".
639: &Apache::lonhtmlcommon::start_pick_box()."\n".
640: &Apache::lonhtmlcommon::row_title(&mt('Username'),
641: 'LC_pick_box_title')."\n".
642: $username."\n".
643: &Apache::lonhtmlcommon::row_closure(1)."\n".
644: &Apache::lonhtmlcommon::row_title(&mt('Password'),
645: 'LC_pick_box_title')."\n".
646: $upassone."\n".
647: &Apache::lonhtmlcommon::row_closure(1)."\n".
648: &Apache::lonhtmlcommon::row_title(&mt('Confirm password'),
649: 'LC_pick_box_title')."\n".
650: $upasstwo."\n".
651: &Apache::lonhtmlcommon::row_closure(1)."\n".
652: &Apache::lonhtmlcommon::end_pick_box()."\n".
653: '<input type="hidden" name="uname" value="'.$username.'">'."\n".
654: '<input type="hidden" name="lextkey" value="'.$lextkey.'">'."\n".
655: '<input type="hidden" name="uextkey" value="'.$uextkey.'">'."\n".
656: '</form></div>'."\n".
657: '<div class="LC_clear_float_footer"><br /><br />'."\n".
658: '<form name="buttonform">'."\n".
659: '<input type="button" name="createaccount" value="'.
660: $submit_text.'" onclick="javascript:checkpass();" /></form></div>';
661: } else {
662: $output = &mt('Could not load javascript file [_1]','<tt>londes.js</tt>');
663: }
664: return $output;
665: }
666:
667: sub create_account {
668: my ($r,$domain,$lonhost,$username,$domdesc) = @_;
669: my ($retrieved,$output,$upass) = &process_credentials($env{'form.logtoken'},
670: $env{'form.serverid'});
671: # Error messages
672: my $error = '<span class="LC_error">'.&mt('Error:').' ';
673: my $end = '</span><br /><br />';
674: my $rtnlink = '<a href="javascript:history.back();" />'.
675: &mt('Return to previous page').'</a>'.
676: &Apache::loncommon::end_page();
677: if ($retrieved eq 'ok') {
678: if ($env{'form.cid'} ne '') {
679: my ($result,$userchkmsg) = &check_id($username,$domain,$domdesc);
680: if ($result eq 'fail') {
681: $output = $error.&mt('Invalid ID format').$end.
682: $userchkmsg.$rtnlink;
683: return ('fail',$output);
684: }
685: }
686: } else {
687: return ('fail',$error.$output.$end.$rtnlink);
688: }
689: # Call modifyuser
690: my $result =
691: &Apache::lonnet::modifyuser($domain,$username,$env{'form.cid'},
692: 'internal',$upass,$env{'form.cfirstname'},
693: $env{'form.cmiddlename'},$env{'form.clastname'},
694: $env{'form.cgeneration'},undef,undef,$username);
695: $output = &mt('Generating user: [_1]',$result);
696: my $uhome = &Apache::lonnet::homeserver($username,$domain);
697: $output .= '<br />'.&mt('Home server: [_1]',$uhome).' '.
698: &Apache::lonnet::hostname($uhome).'<br /><br />';
699: return ('ok',$output);
700: }
701:
702: sub username_validation {
703: my ($username,$domain,$domdesc,$contact_name,$contact_email,$courseid,$lonhost) = @_;
704: my ($retrieved,$output,$upass);
705:
706: $username= &LONCAPA::clean_username($username);
707: $domain = &LONCAPA::clean_domain($domain);
708: my $uhome = &Apache::lonnet::homeserver($username,$domain);
709:
710: if ($uhome ne 'no_host') {
711: $output = &invalid_state('existinguser',$domdesc,
712: $contact_name,$contact_email);
713: return $output;
714: }
715: ($retrieved,$output,$upass) = &process_credentials($env{'form.logtoken'},
716: $env{'form.serverid'});
717: if ($retrieved eq 'ok') {
718: my $primlibserv = &Apache::lonnet::domain($domain,'primary');
719: my $authok;
720: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
721: if ((($domdefaults{'auth_def'} =~/^krb(4|5)$/) && ($domdefaults{'auth_arg_def'} ne '')) || ($domdefaults{'auth_def'} eq 'localauth')) {
722: my $checkdefauth = 1;
723: $authok =
724: &Apache::lonnet::reply("encrypt:auth:$domain:$username:$upass:$checkdefauth",$primlibserv);
725: } else {
726: $authok = 'non_authorized';
727: }
728: if ($authok eq 'authorized') {
729: ($output,undef) = &username_check($username,$domain,$domdesc,
730: $courseid,$lonhost,$contact_email);
731: } else {
732: $output = '<div class="LC_warning">'
733: .&mt('Username and/or password could not be authenticated.')
734: .'</div>'
735: .&mt('Please check the username and password.');
736: }
737: }
738: return $output;
739: }
740:
741: sub username_check {
742: my ($username,$domain,$domdesc,$courseid,$lonhost,$contact_email) = @_;
743: my (%rulematch,%inst_results,$newuser,%alerts,%curr_rules,%got_rules);
744: $newuser = 1;
745: my $checkhash;
746: my $checks = { 'username' => 1 };
747: $checkhash->{$username.':'.$domain} = { 'newuser' => $newuser };
748: &Apache::loncommon::user_rule_check($checkhash,$checks,\%alerts,\%rulematch,
749: \%inst_results,\%curr_rules,\%got_rules);
750: if (ref($alerts{'username'}) eq 'HASH') {
751: if (ref($alerts{'username'}{$domain}) eq 'HASH') {
752: if ($alerts{'username'}{$domain}{$username}) {
753: my ($userchkmsg,$checkfail);
754: if (ref($curr_rules{$domain}) eq 'HASH') {
755: $userchkmsg =
756: &Apache::loncommon::instrule_disallow_msg('username',$domdesc,1).
757: &Apache::loncommon::user_rule_formats($domain,$domdesc,
758: $curr_rules{$domain}{'username'},'username');
759: if ($userchkmsg) {
760: $checkfail = 'username';
761: }
762: }
763: return ($userchkmsg,$checkfail);
764: }
765: }
766: }
767: my $submit_text = &mt('Create LON-CAPA account');
768: my $output = '<form method="post" action="/adm/createaccount">'.
769: &Apache::loncreateuser::personal_data_display($username,$domain,1,
770: undef,$inst_results{$username.':'.$domain}).
771: '<br /><br /><input type="hidden" name="uname" value="'.$username.'" />'."\n".
772: '<input type="hidden" name="udom" value="'.$domain.'" />'."\n".
773: '<input type="hidden" name="phase" value="username_activation" />';
774: my $now = time;
775: my %info = ('ip' => $ENV{'REMOTE_ADDR'},
776: 'time' => $now,
777: 'domain' => $domain,
778: 'username' => $username);
779: my $authtoken = &Apache::lonnet::tmpput(\%info,$lonhost);
780: if ($authtoken !~ /^error/ && $authtoken ne 'no_such_host') {
781: $output .= '<input type="hidden" name="authtoken" value="'.&HTML::Entities::encode($authtoken,'&<>"').'" />';
782: } else {
783: $output = &mt('An error occurred when storing a token').'<br />'.
784: &mt('You will not be able to proceed to the next stage of account creation').
785: &linkto_email_help($contact_email,$domdesc);
786: return($output,'authtoken');
787: }
788: if ($courseid ne '') {
789: $output .= '<input type="hidden" name="courseid" value="'.$courseid.'" />';
790: }
791: $output .= '<input type="submit" name="newaccount" value="'.
792: $submit_text.'" /></form>';
793: return ($output,'');
794: }
795:
796: sub username_activation {
797: my ($r,$username,$domain,$domdesc,$lonhost,$courseid) = @_;
798: my $output;
799: my $error = '<span class="LC_error">'.&mt('Error:').' ';
800: my $end = '</span><br /><br />';
801: my $rtnlink = '<a href="javascript:history.back();" />'.
802: &mt('Return to previous page').'</a>'.
803: &Apache::loncommon::end_page();
804: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
805: my %data = &Apache::lonnet::tmpget($env{'form.authtoken'});
806: my $now = time;
807: my $earlyout;
808: my $timeout = 300;
809: if (keys(%data) == 0) {
810: $output = &mt('Sorry, your authentication has expired.');
811: $earlyout = 'fail';
812: }
813: if (($data{'time'} !~ /^\d+$/) ||
814: ($data{'domain'} ne $domain) ||
815: ($data{'username'} ne $username)) {
816: $earlyout = 'fail';
817: $output = &mt('The credentials you provided could not be verified.');
818: } elsif ($now - $data{'time'} > $timeout) {
819: $earlyout = 'fail';
820: $output = &mt('Sorry, your authentication has expired.');
821: }
822: if ($earlyout ne '') {
823: $output .= '<br />'.&mt('Please [_1]start again[_2].','<a href="/adm/createaccount">','</a>');
824: return($earlyout,$output);
825: }
826: if ((($domdefaults{'auth_def'} =~/^krb(4|5)$/) &&
827: ($domdefaults{'auth_arg_def'} ne '')) ||
828: ($domdefaults{'auth_def'} eq 'localauth')) {
829: if ($env{'form.cid'} ne '') {
830: my ($result,$userchkmsg) = &check_id($username,$domain,$domdesc);
831: if ($result eq 'fail') {
832: $output = $error.&mt('Invalid ID format').$end.
833: $userchkmsg.$rtnlink;
834: return ('fail',$output);
835: }
836: }
837: # Call modifyuser
838: my $result =
839: &Apache::lonnet::modifyuser($domain,$username,$env{'form.cid'},
840: $domdefaults{'auth_def'},
841: $domdefaults{'auth_arg_def'},$env{'form.cfirstname'},
842: $env{'form.cmiddlename'},$env{'form.clastname'},
843: $env{'form.cgeneration'},undef,undef,
844: $env{'form.cpermanentemail'});
845: if ($result eq 'ok') {
846: my $delete = &Apache::lonnet::tmpdel($env{'form.authtoken'});
847: $output = &mt('A LON-CAPA account has been created for username: [_1] in domain: [_2].',$username,$domain);
848: my %form = &start_session($r,$username,$domain,$lonhost,$courseid);
849: my $nostart = 1;
850: return ('ok',$output,$nostart);
851: } else {
852: $output = &mt('Account creation failed for username: [_1] in domain: [_2].',$username,$domain).'<br /><span class="LC_error">'.&mt('Error: [_1]',$result).'</span>';
853: return ('fail',$output);
854: }
855: } else {
856: $output = &mt('User account creation is not available for the current default authentication type.')."\n";
857: return('fail',$output);
858: }
859: }
860:
861: sub check_id {
862: my ($username,$domain,$domdesc) = @_;
863: # Check ID format
864: my (%alerts,%rulematch,%inst_results,%curr_rules,%checkhash);
865: my %checks = ('id' => 1);
866: %{$checkhash{$username.':'.$domain}} = (
867: 'newuser' => 1,
868: 'id' => $env{'form.cid'},
869: );
870: &Apache::loncommon::user_rule_check(\%checkhash,\%checks,\%alerts,
871: \%rulematch,\%inst_results,\%curr_rules);
872: if (ref($alerts{'id'}) eq 'HASH') {
873: if (ref($alerts{'id'}{$domain}) eq 'HASH') {
874: if ($alerts{'id'}{$domain}{$env{'form.cid'}}) {
875: my $userchkmsg;
876: if (ref($curr_rules{$domain}) eq 'HASH') {
877: $userchkmsg =
878: &Apache::loncommon::instrule_disallow_msg('id',
879: $domdesc,1).
880: &Apache::loncommon::user_rule_formats($domain,
881: $domdesc,$curr_rules{$domain}{'id'},'id');
882: }
883: return ('fail',$userchkmsg);
884: }
885: }
886: }
887: return;
888: }
889:
890: sub invalid_state {
891: my ($error,$domdesc,$contact_name,$contact_email,$msgtext) = @_;
892: my $msg;
893: if ($error eq 'baduseremail') {
894: $msg = &mt('The e-mail address you provided does not appear to be a valid address.');
895: } elsif ($error eq 'existinguser') {
896: $msg = &mt('The e-mail address you provided is already in use as a username in this LON-CAPA domain.');
897: } elsif ($error eq 'userrules') {
898: $msg = &mt('Username rules for this LON-CAPA domain do not allow the e-mail address you provided to be used as a username.');
899: } elsif ($error eq 'userformat') {
900: $msg = &mt('The e-mail address you provided may not be used as a username in this LON-CAPA domain.');
901: } elsif ($error eq 'captcha') {
902: $msg = &mt('Validation of the code your entered failed.');
903: } elsif ($error eq 'noemails') {
904: $msg = &mt('Creation of a new user account using an e-mail address as username is not permitted in this LON-CAPA domain.');
905: }
906: if ($msgtext) {
907: $msg .= '<br />'.$msgtext;
908: }
909: $msg .= &linkto_email_help($contact_email,$domdesc);
910: return $msg;
911: }
912:
913: sub linkto_email_help {
914: my ($contact_email,$domdesc) = @_;
915: my $msg;
916: if ($contact_email ne '') {
917: my $escuri = &HTML::Entities::encode('/adm/createaccount','&<>"');
918: $msg .= '<br />'.&mt('You may wish to contact the [_1]LON-CAPA helpdesk[_2] for the [_3] domain.','<a href="/adm/helpdesk?origurl='.$escuri.'">','</a>',$domdesc);
919: } else {
920: $msg .= '<br />'.&mt('You may wish to send an e-mail to the server administrator: [_1] for the [_2] domain.',$Apache::lonnet::perlvar{'AdminEmail'},$domdesc);
921: }
922: return $msg;
923: }
924:
925: sub create_captcha {
926: my ($output_dir,$db_dir) = @_;
927: my %captcha_params = &captcha_settings();
928: my $captcha = Authen::Captcha->new(
929: output_folder => $captcha_params{'output_dir'},
930: data_folder => $captcha_params{'db_dir'},
931: );
932: my $md5sum = $captcha->generate_code($captcha_params{'numchars'});
933: my $output = '<input type="hidden" name="crypt" value="'.$md5sum.'" />'."\n".
934: &mt('Type in the letters/numbers shown below').' '.
935: '<input type="text" size="5" name="code" value="" /><br />'.
936: '<img src="'.$captcha_params{'www_output_dir'}.'/'.$md5sum.'.png">';
937: return $output;
938: }
939:
940: sub captcha_settings {
941: my %captcha_params = (
942: output_dir => $Apache::lonnet::perlvar{'lonDocRoot'}.'/captcha',
943: www_output_dir => "/captcha",
944: db_dir => "/home/www/captchadb",
945: numchars => '5',
946: );
947: return %captcha_params;
948: }
949:
950: sub getkeys {
951: my ($lkey,$ukey) = @_;
952: my $lextkey=hex($lkey);
953: if ($lextkey>2147483647) { $lextkey-=4294967296; }
954:
955: my $uextkey=hex($ukey);
956: if ($uextkey>2147483647) { $uextkey-=4294967296; }
957: return ($lextkey,$uextkey);
958: }
959:
960: sub serverform {
961: my ($logtoken,$lonhost,$mailtoken,$courseid) = @_;
962: my $output .= <<ENDSERVERFORM;
963: <form name="server" method="post" target="_top">
964: <input type="hidden" name="logtoken" value="$logtoken" />
965: <input type="hidden" name="token" value="$mailtoken" />
966: <input type="hidden" name="serverid" value="$lonhost" />
967: <input type="hidden" name="uname" value="" />
968: <input type="hidden" name="upass" value="" />
969: <input type="hidden" name="phase" value="username_validation" />
970: <input type="hidden" name="courseid" value="$courseid" />
971: </form>
972: ENDSERVERFORM
973: return $output;
974: }
975:
976: sub process_credentials {
977: my ($logtoken,$lonhost) = @_;
978: my $tmpinfo=Apache::lonnet::reply('tmpget:'.$logtoken,$lonhost);
979: my ($retrieved,$output,$upass);
980: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
981: $output = &mt('Information needed to verify your login information is missing, inaccessible or expired.')
982: .'<br />'.&mt('You may need to reload the previous page to obtain a new token.');
983: return ($retrieved,$output,$upass);
984: } else {
985: my $reply = &Apache::lonnet::reply('tmpdel:'.$logtoken,$lonhost);
986: if ($reply eq 'ok') {
987: $retrieved = 'ok';
988: } else {
989: $output = &mt('Session could not be opened.');
990: }
991: }
992: my ($key,$caller)=split(/&/,$tmpinfo);
993: if ($caller eq 'createaccount') {
994: $upass = &Apache::lonpreferences::des_decrypt($key,$env{'form.upass'});
995: } else {
996: $output = &mt('Unable to retrieve your log-in information - unexpected context');
997: }
998: return ($retrieved,$output,$upass);
999: }
1000:
1001: sub guest_format_check {
1002: my ($useremail,$domain,$cancreate,$settings) = @_;
1003: my ($login,$format_match,$format_msg,@user_rules);
1004: if (ref($settings) eq 'HASH') {
1005: if (ref($settings->{'email_rule'}) eq 'ARRAY') {
1006: push(@user_rules,@{$settings->{'email_rule'}});
1007: }
1008: }
1009: if (@user_rules > 0) {
1010: my %rule_check =
1011: &Apache::lonnet::inst_rulecheck($domain,$useremail,undef,
1012: 'selfcreate',\@user_rules);
1013: if (keys(%rule_check) > 0) {
1014: foreach my $item (keys(%rule_check)) {
1015: if ($rule_check{$item}) {
1016: $format_match = 1;
1017: last;
1018: }
1019: }
1020: }
1021: }
1022: if ($format_match) {
1023: ($login) = ($useremail =~ /^([^\@]+)\@/);
1024: $format_msg = '<br />'.&mt("Your e-mail address uses the same internet domain as your institution's LON-CAPA service.").'<br />'.&mt('Creation of a LON-CAPA account with this type of e-mail address as username is not permitted.').'<br />';
1025: if (ref($cancreate) eq 'ARRAY') {
1026: if (grep(/^login$/,@{$cancreate})) {
1027: $format_msg .= &mt('You should request creation of a LON-CAPA account for a log-in ID of "[_1]" at your institution instead.',$login).'<br />';
1028: }
1029: }
1030: }
1031: return $format_msg;
1032: }
1033:
1034: 1;
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