File:
[LON-CAPA] /
loncom /
interface /
createaccount.pm
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1.1:
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Sun Feb 24 23:23:39 2008 UTC (16 years, 3 months ago) by
raeburn
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Bug 5558. Visitors without a LON-CAPA account can create one, using an e-mail address (sends a URL to the address provided, which needs to be visited to complete the process), or an institutional login (authentication required).
Requires Authen::Captcha perl module to discourage robotic account requests.
Work in progress.
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 1.1 2008/02/24 23:23:39 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::lonlocal;
39: use Apache::resetpw;
40: use Authen::Captcha;
41: use DynaLoader; # for Crypt::DES version
42: use Crypt::DES;
43: use LONCAPA;
44:
45: sub handler {
46: my $r = shift;
47: &Apache::loncommon::content_type($r,'text/html');
48: $r->send_http_header;
49: if ($r->header_only) {
50: return OK;
51: }
52: my $domain = &Apache::lonnet::default_login_domain();
53: my $domdesc = &Apache::lonnet::domain($domain,'description');
54: my $start_page =
55: &Apache::loncommon::start_page('Create a user account in LON-CAPA','',
56: {
57: 'no_inline_link' => 1,});
58: $r->print($start_page);
59: &Apache::lonhtmlcommon::clear_breadcrumbs();
60: &Apache::lonhtmlcommon::add_breadcrumb
61: ({href=>"/adm/createuser",
62: text=>"New username"});
63: my $contact_name = &mt('LON-CAPA helpdesk');
64: my $contact_email = $r->dir_config('lonSupportEMail');
65: my $lonhost = $r->dir_config('lonHostID');
66: my $include = $r->dir_config('lonIncludes');
67: &Apache::lonacc::get_posted_cgi($r);
68: &Apache::lonlocal::get_language_handle($r);
69: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['token']);
70: my $token = $env{'form.token'};
71: my $output;
72: my $cancreate;
73: my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
74: if (ref($domconfig{'usercreation'}) eq 'HASH') {
75: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
76: if ($domconfig{'usercreation'}{'cancreate'}{'selfenroll'} ne 'none') {
77: $cancreate = $domconfig{'usercreation'}{'cancreate'}{'selfenroll'};
78: }
79: }
80: }
81: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Create account'));
82: if (!$cancreate) {
83: $output = &mt('Creation of a new user account using an e-mail address as username or a loginID from your institution is not permitted in the domain: [_1] ([_2])',$domain,$domdesc);
84: } elsif ($token) {
85: $output = &process_mailtoken($r,$token,$contact_name,$contact_email,$domain,
86: $domdesc,$lonhost,$include);
87: } elsif ($env{'form.create_with_email'}) {
88: $output = &process_email_request($env{'form.useremail'},$domain,$domdesc,
89: $contact_name,$contact_email,$cancreate,
90: $lonhost,$domconfig{'usercreation'});
91: } elsif ($env{'form.phase'} eq 'username_validation') {
92: $output = &username_validation($env{'form.uname'},$domain,$domdesc,
93: $contact_name,$contact_email);
94: } elsif ($env{'form.phase'} eq 'username_activation') {
95: (my $result,$output) = &username_activation($env{'form.uname'},
96: $domain,$domdesc);
97: } else {
98: my $now=time;
99: if ($cancreate eq 'any' || $cancreate eq 'login') {
100: my $jsh=Apache::File->new($include."/londes.js");
101: $r->print(<$jsh>);
102: $r->print(&javascript_setforms($now));
103: }
104: $output = &print_username_form($domain,$domdesc,$cancreate,$now,$lonhost);
105: }
106: $r->print($output);
107: $r->print(&Apache::loncommon::end_page());
108: return OK;
109: }
110:
111: sub javascript_setforms {
112: my ($now) = @_;
113: my $js = <<ENDSCRIPT;
114: <script language="JavaScript">
115: function send() {
116: this.document.server.elements.uname.value = this.document.client.elements.uname.value;
117: uextkey=this.document.client.elements.uextkey.value;
118: lextkey=this.document.client.elements.lextkey.value;
119: initkeys();
120:
121: this.document.server.elements.upass.value
122: = crypted(this.document.client.elements.upass$now.value);
123:
124: this.document.client.elements.uname.value='';
125: this.document.client.elements.upass$now.value='';
126:
127: this.document.server.submit();
128: return false;
129: }
130: </script>
131: ENDSCRIPT
132: return $js;
133: }
134:
135: sub javascript_checkpass {
136: my ($now) = @_;
137: my $nopass = &mt('You must enter a password');
138: my $mismatchpass = &mt('The passwords you entered did not match.').'\\n'.
139: &mt('Please try again.');
140: my $js = <<"ENDSCRIPT";
141: <script type="text/javascript" language="JavaScript">
142: function checkpass() {
143: var upass = this.document.client.elements.upass$now.value;
144: var upasscheck = this.document.client.elements.upasscheck$now.value;
145: if (upass == '') {
146: alert("$nopass");
147: return;
148: }
149: if (upass == upasscheck) {
150: this.document.client.elements.upasscheck$now.value='';
151: send();
152: return;
153: } else {
154: alert("$mismatchpass");
155: return;
156: }
157: }
158: </script>
159: ENDSCRIPT
160: return $js;
161: }
162:
163: sub print_username_form {
164: my ($domain,$domdesc,$cancreate,$now,$lonhost) = @_;
165: my %lt = &Apache::lonlocal::texthash(
166: unam => 'username',
167: udom => 'domain',
168: uemail => 'Email address in LON-CAPA',
169: proc => 'Proceed');
170: my $output;
171: if ($cancreate eq 'any' || $cancreate eq 'login') {
172: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
173: if ((($domdefaults{'auth_def'} =~/^krb/) && ($domdefaults{'auth_arg_def'} ne '')) || ($domdefaults{'auth_def'} eq 'localauth')) {
174: $output = '<div class="LC_left_float"><h3>'.&mt('Create account with a username provided by your institution').'</h3>';
175: $output .= &mt('If you already have a Log-in ID at your institution, you may be able to use it[_1] for LON-CAPA.','<br />').' '.&mt('Type in your Log-in ID and password to find out.').'<br /><br />';
176: my ($lkey,$ukey) = &Apache::lonpreferences::des_keys();
177: my ($lextkey,$uextkey) = &getkeys($lkey,$ukey);
178: my $logtoken=Apache::lonnet::reply('tmpput:'.$ukey.$lkey.'&createaccount',
179: $lonhost);
180: $output .= &serverform($logtoken,$lonhost);
181: my $unameform = '<input type="text" name="uname" size="10" value="" />';
182: my $upassform = '<input type="password" name="upass'.$now.'" size="10" />';
183: my $submit_text = &mt('Create LON-CAPA account');
184: $output .= '<form name="client" method="post" />'."\n".
185: &Apache::lonhtmlcommon::start_pick_box()."\n".
186: &Apache::lonhtmlcommon::row_title(&mt('Log-in ID'),
187: 'LC_pick_box_title')."\n".
188: $unameform."\n".
189: &Apache::lonhtmlcommon::row_closure(1)."\n".
190: &Apache::lonhtmlcommon::row_title(&mt('Password'),
191: 'LC_pick_box_title')."\n".
192: $upassform."\n".'<br /><br />'."\n".
193: '<input type="button" name="username_validation" value="'.
194: $submit_text.'" onclick="javascript:send()" />'."\n".
195: &Apache::lonhtmlcommon::row_closure(1)."\n".
196: &Apache::lonhtmlcommon::end_pick_box().'<br /><br />'."\n".
197: '<input type="hidden" name="lextkey" value="'.$lextkey.'">'."\n".
198: '<input type="hidden" name="uextkey" value="'.$uextkey.'">'."\n".
199: '</form></div>';
200: }
201: }
202: if (($cancreate eq 'any') || ($cancreate eq 'email')) {
203: $output .= '<div class="LC_left_float"><h3>'.&mt('Create account with an e-mail address as your username').'</h3>';
204: if ($cancreate eq 'any') {
205: $output .= &mt('Provide your e-mail address to request a LON-CAPA account if you do not have [_1] a log-in ID at your institution.','<br />').'<br /><br />';
206: } elsif ($cancreate eq 'unofficial') {
207: $output .= '<br />';
208: }
209: my $emailform = '<input type="text" name="useremail" size="25" value="" />';
210: my $captchaform = &create_captcha();
211: my $submit_text = &mt('Request LON-CAPA account');
212: $output .= '<form name="createaccount" method="post" onsubmit="validate_email();" >'.
213: &Apache::lonhtmlcommon::start_pick_box()."\n".
214: &Apache::lonhtmlcommon::row_title(&mt('E-mail address'),
215: 'LC_pick_box_title')."\n".
216: $emailform."\n".
217: &Apache::lonhtmlcommon::row_closure(1).
218: &Apache::lonhtmlcommon::row_title(&mt('Validation'),
219: 'LC_pick_box_title')."\n".
220: $captchaform."\n".'<br /><br />'.
221: '<input type="submit" name="create_with_email" value="'.
222: $submit_text.'" />'.
223: &Apache::lonhtmlcommon::row_closure(1).
224: &Apache::lonhtmlcommon::end_pick_box().'<br /><br /></form>'.
225: '</div>';
226: }
227: if ($output eq '') {
228: $output = &mt('Creation of a new user account using either an e-mail address or institutional log-in ID as your username is not permitted in the domain: [_1] ([_2])',$domain,$domdesc);
229: } else {
230: $output .= '<div class="LC_clear_float_footer"></div>';
231: }
232: return $output;
233: }
234:
235: sub process_email_request {
236: my ($useremail,$domain,$domdesc,$contact_name,$contact_email,$cancreate,
237: $server,$settings) = @_;
238: my $useremail = $env{'form.useremail'};
239: my $output;
240: if ($cancreate ne 'any' && $cancreate ne 'email') {
241: $output = &invalid_state('noemails',$domdesc,
242: $contact_name,$contact_email);
243: return $output;
244: } elsif ($useremail !~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) {
245: $output = &invalid_state('baduseremail',$domdesc,
246: $contact_name,$contact_email);
247: return $output;
248: } else {
249: my $uhome = &Apache::lonnet::homeserver($useremail,$domain);
250: if ($uhome ne 'no_host') {
251: $output = &invalid_state('existinguser',$domdesc,
252: $contact_name,$contact_email);
253: return $output;
254: } else {
255: my $code = $env{'form.code'};
256: my $md5sum = $env{'form.crypt'};
257: my %captcha_params = &captcha_settings();
258: my $captcha = Authen::Captcha->new(
259: output_folder => $captcha_params{'output_dir'},
260: data_folder => $captcha_params{'db_dir'},
261: );
262: my $captcha_chk = $captcha->check_code($code,$md5sum);
263: my %captcha_hash = (
264: 0 => 'Code not checked (file error)',
265: -1 => 'Failed: code expired',
266: -2 => 'Failed: invalid code (not in database)',
267: -3 => 'Failed: invalid code (code does not match crypt)',
268: );
269: if ($captcha_chk != 1) {
270: $output = &invalid_state('captcha',$domdesc,$contact_name,
271: $contact_email,$captcha_hash{$captcha_chk});
272: return $output;
273: }
274: my (%rulematch,%inst_results,%curr_rules,%got_rules,%alerts);
275: my $uhome=&Apache::lonnet::homeserver($useremail,$domain);
276: if ($uhome eq 'no_host') {
277: my $checkhash;
278: my $checks = { 'username' => 1 };
279: $checkhash->{$useremail.':'.$domain} = { 'newuser' => 1, };
280: &Apache::loncommon::user_rule_check($checkhash,$checks,
281: \%alerts,\%rulematch,\%inst_results,\%curr_rules,
282: \%got_rules);
283: if (ref($alerts{'useremail'}) eq 'HASH') {
284: if (ref($alerts{'useremail'}{$domain}) eq 'HASH') {
285: if ($alerts{'username'}{$domain}{$useremail}) {
286: $output = &invalid_state('userrules',$domdesc,
287: $contact_name,$contact_email);
288: return $output;
289: }
290: }
291: }
292: my $format_msg =
293: &guest_format_check($useremail,$domain,$cancreate,
294: $settings);
295: if ($format_msg) {
296: $output = &invalid_state('userformat',$domdesc,$contact_name,
297: $contact_email,$format_msg);
298: return $output;
299: }
300: }
301: }
302: }
303: $output = &send_token($domain,$useremail,$server,$domdesc,$contact_name,
304: $contact_email);
305: return $output;
306: }
307:
308: sub send_token {
309: my ($domain,$email,$server,$domdesc,$contact_name,$contact_email) = @_;
310: my $msg = &mt('Thank you for your request to create a new LON-CAPA account.').'<br /><br />';
311: my $now = time;
312: my %info = ('ip' => $ENV{'REMOTE_ADDR'},
313: 'time' => $now,
314: 'domain' => $domain,
315: 'username' => $email);
316: my $token = &Apache::lonnet::tmpput(\%info,$server);
317: if ($token !~ /^error/ && $token ne 'no_such_host') {
318: my $esc_token = &escape($token);
319: my $mailmsg = &mt('A request was submitted on [_1] for creation of a LON-CAPA account in the [_2] domain.',localtime(time),$domdesc).' '.
320: &mt('To complete this process please open a web browser and enter the following ".
321: "URL in the address/location box: ').&Apache::lonnet::absolute_url()."/adm/createaccount?token=$esc_token";
322: my $result = &Apache::resetpw::send_mail($domdesc,$email,$mailmsg,$contact_name,
323: $contact_email);
324: if ($result eq 'ok') {
325: $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>');
326: } else {
327: $msg .= &mt('An error occurred when sending a message to the e-mail address you provided. Please contact the [_1] ([_2]) for assistance.',$contact_name,$contact_email);
328: }
329: } else {
330: $msg .= &mt('An error occurred creating a token required for the account creation process. Please contact the [_1] ([_2]) for assistance.',$contact_name,$contact_email);
331: }
332: return $msg;
333: }
334:
335: sub process_mailtoken {
336: my ($r,$token,$contact_name,$contact_email,$domain,$domdesc,$lonhost,$include) = @_;
337: my $msg;
338: my %data = &Apache::lonnet::tmpget($token);
339: my $now = time;
340: if (keys(%data) == 0) {
341: $msg = &mt('Sorry, the URL you provided to complete creation of a new LON-CAPA account was invalid. Either the token included in the URL has been deleted or the URL you provided was invalid. Please submit a <a href="/adm/createaccount">new request</a> for account creation and follow the link to the new URL included in the e-mail that will be sent to you.');
342: return $msg;
343: }
344: if (($data{'time'} =~ /^\d+$/) &&
345: ($data{'domain'} ne '') &&
346: ($data{'username'} =~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/)) {
347: my $reqtime = localtime($data{'time'});
348: if ($now - $data{'time'} < 7200) {
349: if ($env{'form.phase'} eq 'createaccount') {
350: my ($result,$output) = &create_account($r,$domain,$lonhost,$token,
351: $data{'username'},$domdesc);
352: if ($result eq 'ok') {
353: $msg = $output;
354: my $delete = &Apache::lonnet::tmpdel($token);
355: my $now = localtime(time);
356: 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,$now,$ENV{'REMOTE_ADDR'},$contact_name,$contact_email)."\n";
357: my $mailresult = &Apache::resetpw::send_mail($domdesc,$data{'email'},
358: $mailmsg,$contact_name,
359: $contact_email);
360: if ($mailresult eq 'ok') {
361: $msg .= &mt('An e-mail confirming creation of your new LON-CAPA account has been sent to [_1].',$data{'username'});
362: } else {
363: $msg .= &mt('An error occurred when sending e-mail to [_1] confirming creation of your LON-CAPA account.',$data{'username'});
364: }
365: $msg .= '<br /><br />'.&mt('<a href="/adm/login">Go to the login page</a>.');
366: } else {
367: $msg .= &mt('A problem occurred when attempting to create your new LON-CAPA account').'<br />'.$output.&mt('Please contact the [_1] - (<a href="mailto:[_2]">[_2]</a>) for assistance.',$contact_name,$contact_email);
368: }
369: } else {
370: $r->print(&mt('Please provide user information and a password for your new account.').'<br />'.&mt('Your password, which must contain at least seven characters, will be sent to the LON-CAPA server in an encrypted form.').'<br />');
371: &print_dataentry_form($r,$domain,$lonhost,$include,$token,$now,$data{'username'});
372:
373: }
374: } else {
375: $msg = &mt('Sorry, the token generated when you requested creation of an account has expired. Please submit a <a href="/adm/createaccount">new request</a>, and follow the link to the web page included in the new e-mail that will be sent to you, to allow you to create the account.');
376: }
377: } else {
378: $msg .= &mt('Sorry, the URL generated when you requested creation of an accountcontained incomplete information. Please submit a <a href="/adm/createaccount">new request</a> for creation of an account, and use the new URL that will be sent to your e-mail address to complete the process.');
379: }
380: return $msg;
381: }
382:
383: sub print_dataentry_form {
384: my ($r,$domain,$lonhost,$include,$mailtoken,$now,$username) = @_;
385: my ($error,$output);
386: if (open(my $jsh,"<$include/londes.js")) {
387: while(my $line = <$jsh>) {
388: $r->print($line);
389: }
390: close($jsh);
391: $r->print(&javascript_setforms($now)."\n".&javascript_checkpass($now));
392: my ($lkey,$ukey) = &Apache::lonpreferences::des_keys();
393: my ($lextkey,$uextkey) = &getkeys($lkey,$ukey);
394: my $logtoken=Apache::lonnet::reply('tmpput:'.$ukey.$lkey.'&createaccount',
395: $lonhost);
396: my @userinfo = ('firstname','middlename','lastname','generation','id',
397: 'permanentemail');
398: my %lt=&Apache::lonlocal::texthash(
399: 'pd' => "Personal Data",
400: 'firstname' => "First Name",
401: 'middlename' => "Middle Name",
402: 'lastname' => "Last Name",
403: 'generation' => "Generation",
404: 'permanentemail' => "Permanent e-mail address",
405: 'id' => "ID/Student Number",
406: 'lg' => "Login Data"
407: );
408: my %textboxsize = (
409: firstname => '15',
410: middlename => '15',
411: lastname => '15',
412: generation => '5',
413: id => '15',
414: );
415: my $genhelp=&Apache::loncommon::help_open_topic('Generation');
416: $output = '<div class="LC_left_float"><h3>'.$lt{'pd'}.'</h3>'.
417: '<form name="server" method="post" target="_top">'.
418: &Apache::lonhtmlcommon::start_pick_box();
419: foreach my $item (@userinfo) {
420: my $rowtitle = $lt{$item};
421: if ($item eq 'generation') {
422: $rowtitle = $genhelp.$rowtitle;
423: }
424: $output .= &Apache::lonhtmlcommon::row_title($rowtitle,undef,'LC_oddrow_value')."\n";
425: if ($item eq 'permanentemail') {
426: $output .= $username;
427: } else {
428: $output .= '<input type="text" name="c'.$item.'" size="'.$textboxsize{$item}.'" value="" />';
429: }
430: $output .= &Apache::lonhtmlcommon::row_closure(1);
431: }
432: $output .= &Apache::lonhtmlcommon::end_pick_box();
433: $output .= <<"ENDSERVERFORM";
434: <input type="hidden" name="logtoken" value="$logtoken" />
435: <input type="hidden" name="token" value="$mailtoken" />
436: <input type="hidden" name="serverid" value="$lonhost" />
437: <input type="hidden" name="uname" value="" />
438: <input type="hidden" name="upass" value="" />
439: <input type="hidden" name="phase" value="createaccount" />
440: </form></div>
441: ENDSERVERFORM
442: my $upassone = '<input type="password" name="upass'.$now.'" size="10" />';
443: my $upasstwo = '<input type="password" name="upasscheck'.$now.'" size="10" />';
444: my $submit_text = &mt('Create LON-CAPA account');
445: $output .= '<div class="LC_left_float"><h3>'.$lt{'lg'}.'</h3>'."\n".
446: '<form name="client" method="post" />'."\n".
447: &Apache::lonhtmlcommon::start_pick_box()."\n".
448: &Apache::lonhtmlcommon::row_title(&mt('Username'),
449: 'LC_pick_box_title')."\n".
450: $username."\n".
451: &Apache::lonhtmlcommon::row_closure(1)."\n".
452: &Apache::lonhtmlcommon::row_title(&mt('Password'),
453: 'LC_pick_box_title')."\n".
454: $upassone."\n".
455: &Apache::lonhtmlcommon::row_closure(1)."\n".
456: &Apache::lonhtmlcommon::row_title(&mt('Confirm password'),
457: 'LC_pick_box_title')."\n".
458: $upasstwo."\n".
459: &Apache::lonhtmlcommon::row_closure(1)."\n".
460: &Apache::lonhtmlcommon::end_pick_box()."\n".
461: '<input type="hidden" name="uname" value="'.$username.'">'."\n".
462: '<input type="hidden" name="lextkey" value="'.$lextkey.'">'."\n".
463: '<input type="hidden" name="uextkey" value="'.$uextkey.'">'."\n".
464: '</form></div>'."\n".
465: '<div class="LC_clear_float_footer"><br /><br />'."\n".
466: '<form name="buttonform">'."\n".
467: '<input type="button" name="createaccount" value="'.
468: $submit_text.'" onclick="javascript:checkpass();" /></form></div>';
469: $r->print($output);
470: } else {
471: $error = &mt('Could not load javascript file [_1]','londes.js');
472: $r->print($error);
473: }
474: return;
475: }
476:
477: sub create_account {
478: my ($r,$domain,$lonhost,$logtoken,$username,$domdesc) = @_;
479: my ($retrieved,$output,$upass) = &process_credentials($env{'form.logtoken'},
480: $env{'form.serverid'});
481: # Error messages
482: my $error = '<span class="LC_error">'.&mt('Error').': ';
483: my $end = '</span><br /><br />';
484: my $rtnlink = '<a href="javascript:history.back();" />'.
485: &mt('Return to previous page').'</a>'.
486: &Apache::loncommon::end_page();
487: if ($retrieved eq 'ok') {
488: if ($env{'form.cid'} ne '') {
489: my ($result,$userchkmsg) = &check_id($username,$domain,$domdesc);
490: if ($result eq 'fail') {
491: $output = $error.&mt('Invalid ID format').$end.
492: $userchkmsg.$rtnlink;
493: return ('fail',$output);
494: }
495: }
496: } else {
497: return ('fail',$error.$output.$end.$rtnlink);
498: }
499: # Call modifyuser
500: my $result =
501: &Apache::lonnet::modifyuser($domain,$username,$env{'form.cid'},
502: 'internal',$upass,$env{'form.cfirstname'},
503: $env{'form.cmiddlename'},$env{'form.clastname'},
504: $env{'form.cgeneration'},undef,undef,$username);
505: $output = &mt('Generating user').': '.$result;
506: my $uhome = &Apache::lonnet::homeserver($username,$domain);
507: $output .= '<br />'.&mt('Home server').': '.$uhome.' '.
508: &Apache::lonnet::hostname($uhome).'<br /><br />';
509: return ('ok',$output);
510: }
511:
512: sub username_validation {
513: my ($username,$domain,$domdesc,$contact_name,$contact_email) = @_;
514: my ($retrieved,$output,$upass);
515:
516: $username= &LONCAPA::clean_username($username);
517: $domain = &LONCAPA::clean_domain($domain);
518: my $uhome = &Apache::lonnet::homeserver($username,$domain);
519:
520: if ($uhome ne 'no_host') {
521: $output = &invalid_state('existinguser',$domdesc,
522: $contact_name,$contact_email);
523: return $output;
524: }
525: ($retrieved,$output,$upass) = &process_credentials($env{'form.logtoken'},
526: $env{'form.serverid'});
527: if ($retrieved eq 'ok') {
528: my $primlibserv = &Apache::lonnet::domain($domain,'primary');
529: my $authok;
530: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
531: if ((($domdefaults{'auth_def'} =~/^krb(4|5)$/) && ($domdefaults{'auth_arg_def'} ne '')) || ($domdefaults{'auth_def'} eq 'localauth')) {
532: my $checkdefauth = 1;
533: $authok =
534: &Apache::lonnet::reply("encrypt:auth:$domain:$username:$upass:$checkdefauth",$primlibserv);
535: } else {
536: $authok = 'non_authorized';
537: }
538: if ($authok eq 'authorized') {
539: my (%rulematch,%inst_results,$newuser,%alerts,%curr_rules,%got_rules);
540: $newuser = 1;
541: my $checkhash;
542: my $checks = { 'username' => 1 };
543: $checkhash->{$username.':'.$domain} = { 'newuser' => $newuser };
544: &Apache::loncommon::user_rule_check($checkhash,$checks,
545: \%alerts,\%rulematch,\%inst_results,\%curr_rules,\%got_rules);
546: if (ref($alerts{'username'}) eq 'HASH') {
547: if (ref($alerts{'username'}{$domain}) eq 'HASH') {
548: if ($alerts{'username'}{$domain}{$username}) {
549: my $userchkmsg;
550: if (ref($curr_rules{$domain}) eq 'HASH') {
551: $userchkmsg =
552: &Apache::loncommon::instrule_disallow_msg('username',
553: $domdesc,1).
554: &Apache::loncommon::user_rule_formats($domain,
555: $domdesc,$curr_rules{$domain}{'username'},
556: 'username');
557: }
558: return $userchkmsg;
559: }
560: }
561: }
562: my $submit_text = &mt('Create LON-CAPA account');
563: $output =
564: '<form method="post">'.
565: &Apache::loncreateuser::personal_data_display($username,$domain,1,
566: undef,$inst_results{$username.':'.$domain}).
567: '<br /><br /><input type="hidden" name="uname" value="'.$username.'" />'.
568: '<input type="hidden" name="phase" value="username_activation" />'.
569: '<input type="submit" name="newaccount" value="'.
570: $submit_text.'" /></form>';
571: } else {
572: $output = &mt('Not authenticated').' '.&mt('Please check the username and password');
573: }
574: }
575: return $output;
576: }
577:
578: sub username_activation {
579: my ($username,$domain,$domdesc) = @_;
580: my $output;
581: my $error = '<span class="LC_error">'.&mt('Error').': ';
582: my $end = '</span><br /><br />';
583: my $rtnlink = '<a href="javascript:history.back();" />'.
584: &mt('Return to previous page').'</a>'.
585: &Apache::loncommon::end_page();
586: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
587: if ((($domdefaults{'auth_def'} =~/^krb(4|5)$/) && ($domdefaults{'auth_arg_def'} ne '')) || ($domdefaults{'auth_def'} eq 'localauth')) {
588: if ($env{'form.cid'} ne '') {
589: my ($result,$userchkmsg) = &check_id($username,$domain,$domdesc);
590: if ($result eq 'fail') {
591: $output = $error.&mt('Invalid ID format').$end.
592: $userchkmsg.$rtnlink;
593: return ('fail',$output);
594: }
595: }
596: # Call modifyuser
597: my $result =
598: &Apache::lonnet::modifyuser($domain,$username,$env{'form.cid'},
599: $domdefaults{'auth_def'},
600: $domdefaults{'auth_arg_def'},$env{'form.cfirstname'},
601: $env{'form.cmiddlename'},$env{'form.clastname'},
602: $env{'form.cgeneration'},undef,undef,
603: $env{'form.cpermanentemail'});
604: $output = &mt('Generating user').': '.$result;
605: my $uhome = &Apache::lonnet::homeserver($username,$domain);
606: $output .= '<br />'.&mt('Home server').': '.$uhome.' '.
607: &Apache::lonnet::hostname($uhome).'<br /><br />';
608: return ('ok',$output);
609: } else {
610: $output = &mt("User account creation is not available for the current default authentication type.\n");
611: return('fail',$output);
612: }
613: }
614:
615: sub check_id {
616: my ($username,$domain,$domdesc) = @_;
617: # Check ID format
618: my (%alerts,%rulematch,%inst_results,%curr_rules,%checkhash);
619: my %checks = ('id' => 1);
620: %{$checkhash{$username.':'.$domain}} = (
621: 'newuser' => 1,
622: 'id' => $env{'form.cid'},
623: );
624: &Apache::loncommon::user_rule_check(\%checkhash,\%checks,\%alerts,
625: \%rulematch,\%inst_results,\%curr_rules);
626: if (ref($alerts{'id'}) eq 'HASH') {
627: if (ref($alerts{'id'}{$domain}) eq 'HASH') {
628: if ($alerts{'id'}{$domain}{$env{'form.cid'}}) {
629: my $userchkmsg;
630: if (ref($curr_rules{$domain}) eq 'HASH') {
631: $userchkmsg =
632: &Apache::loncommon::instrule_disallow_msg('id',
633: $domdesc,1).
634: &Apache::loncommon::user_rule_formats($domain,
635: $domdesc,$curr_rules{$domain}{'id'},'id');
636: }
637: return ('fail',$userchkmsg);
638: }
639: }
640: }
641: return;
642: }
643:
644: sub invalid_state {
645: my ($error,$domdesc,$contact_name,$contact_email,$msgtext) = @_;
646: my $msg;
647: if ($error eq 'baduseremail') {
648: $msg = &mt('The e-mail address you provided does not appear to be a valid address.');
649: } elsif ($error eq 'existinguser') {
650: $msg = &mt('The e-mail address you provided is already in use as a username in this LON-CAPA domain.');
651: } elsif ($error eq 'userrules') {
652: $msg = &mt('Username rules for this LON-CAPA domain do not allow the e-mail address you provided to be used as a username.');
653: } elsif ($error eq 'userformat') {
654: $msg = &mt('The e-mail address you provided may not be used as a username in this LON-CAPA domain.');
655: } elsif ($error eq 'captcha') {
656: $msg = &mt('Validation of the code your entered failed.');
657: } elsif ($error eq 'noemails') {
658: $msg = &mt('Creation of a new user account using an e-mail address as username is not permitted in this LON-CAPA domain.');
659: }
660: if ($msgtext) {
661: $msg .= '<br />'.$msgtext;
662: }
663: if ($contact_email ne '') {
664: my $escuri = &HTML::Entities::encode('/adm/createaccount','&<>"');
665: $msg .= '<br />'.&mt(' You may wish to contact the <a href="/adm/helpdesk?origurl=[_1]">LON-CAPA helpdesk</a> for the [_2] domain.',$escuri,$domdesc);
666: } else {
667: $msg .= '<br />'.&mt(' You may wish to send an e-mail to the server administrator: [_1] for the [_2] domain.',$Apache::lonnet::perlvar{'AdminEmail'},$domdesc);
668: }
669: return $msg;
670: }
671:
672: sub create_captcha {
673: my ($output_dir,$db_dir) = @_;
674: my %captcha_params = &captcha_settings();
675: my $captcha = Authen::Captcha->new(
676: output_folder => $captcha_params{'output_dir'},
677: data_folder => $captcha_params{'db_dir'},
678: );
679: my $md5sum = $captcha->generate_code($captcha_params{'numchars'});
680: my $output = '<input type="hidden" name="crypt" value="'.$md5sum.'" />'."\n".
681: &mt('Type in the letters/numbers shown below').' '.
682: '<input type="text" size="5" name="code" value="" /><br />'.
683: '<img src="'.$captcha_params{'www_output_dir'}.'/'.$md5sum.'.png">';
684: return $output;
685: }
686:
687: sub captcha_settings {
688: my %captcha_params = (
689: output_dir => "/home/httpd/html/captcha",
690: www_output_dir => "/captcha",
691: db_dir => "/home/www/captchadb",
692: numchars => '5',
693: );
694: return %captcha_params;
695: }
696:
697: sub getkeys {
698: my ($lkey,$ukey) = @_;
699: my $lextkey=hex($lkey);
700: if ($lextkey>2147483647) { $lextkey-=4294967296; }
701:
702: my $uextkey=hex($ukey);
703: if ($uextkey>2147483647) { $uextkey-=4294967296; }
704: return ($lextkey,$uextkey);
705: }
706:
707: sub serverform {
708: my ($logtoken,$lonhost,$mailtoken) = @_;
709: my $output .= <<ENDSERVERFORM;
710: <form name="server" method="post" target="_top">
711: <input type="hidden" name="logtoken" value="$logtoken" />
712: <input type="hidden" name="token" value="$mailtoken" />
713: <input type="hidden" name="serverid" value="$lonhost" />
714: <input type="hidden" name="uname" value="" />
715: <input type="hidden" name="upass" value="" />
716: <input type="hidden" name="phase" value="username_validation" />
717: </form>
718: ENDSERVERFORM
719: return $output;
720: }
721:
722: sub process_credentials {
723: my ($logtoken,$lonhost) = @_;
724: my $tmpinfo=Apache::lonnet::reply('tmpget:'.$logtoken,$lonhost);
725: my ($retrieved,$output,$upass);
726: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
727: $output = &mt('Information needed to retrieve your log-in information is missing, inaccessible or expired.').'<br />'.&mt('You may need to reload the previous page to obtain a new token.');
728: return ($retrieved,$output,$upass);
729: } else {
730: my $reply = &Apache::lonnet::reply('tmpdel:'.$logtoken,$lonhost);
731: if ($reply eq 'ok') {
732: $retrieved = 'ok';
733: } else {
734: $output = &mt('Session could not be opened.');
735: }
736: }
737: my ($key,$caller)=split(/&/,$tmpinfo);
738: if ($caller eq 'createaccount') {
739: $upass = &Apache::lonpreferences::des_decrypt($key,$env{'form.upass'});
740: } else {
741: $output = &mt('Unable to retrieve your log-in information - unexpected context');
742: }
743: return ($retrieved,$output,$upass);
744: }
745:
746: sub guest_format_check {
747: my ($useremail,$domain,$cancreate,$settings) = @_;
748: my ($login,$format_match,$format_msg,@user_rules);
749: if (ref($settings) eq 'HASH') {
750: if (ref($settings->{'email_rule'}) eq 'ARRAY') {
751: push(@user_rules,@{$settings->{'email_rule'}});
752: }
753: }
754: if (@user_rules > 0) {
755: my %rule_check =
756: &Apache::lonnet::inst_rulecheck($domain,$useremail,undef,
757: 'selfenroll',\@user_rules);
758: if (keys(%rule_check) > 0) {
759: foreach my $item (keys(%rule_check)) {
760: if ($rule_check{$item}) {
761: $format_match = 1;
762: last;
763: }
764: }
765: }
766: }
767: if ($format_match) {
768: ($login) = ($useremail =~ /^([^\@]+)\@/);
769: $format_msg = '<br />'.&mt("Your e-mail address uses the same internet domain as your institution's LON-CAPA service.").'<br />'.&mt('Creation of a LON-CAPA account with this type of e-mail address as username is not permitted.').'<br />';
770: if ($cancreate eq 'any' || $cancreate eq 'login') {
771: $format_msg .= &mt('You should request creation of a LON-CAPA account for a Log-in ID of "[_1]" at your institution instead.',$login).'<br />';
772: }
773: }
774: return $format_msg;
775: }
776:
777: 1;
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