Annotation of loncom/interface/resetpw.pm, revision 1.23.2.2
1.1 raeburn 1: # The LearningOnline Network
2: # Allow access to password changing via a token sent to user's e-mail.
3: #
1.23.2.2! raeburn 4: # $Id: resetpw.pm,v 1.23.2.1 2010/11/09 19:36:11 raeburn Exp $
1.14 bisitz 5: #
1.1 raeburn 6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: #
1.21 raeburn 29:
30: =pod
31:
32: =head1 NAME
33:
1.22 raeburn 34: Apache::resetpw: reset user password.
1.21 raeburn 35:
36: =head1 SYNOPSIS
37:
38: Handles resetting of forgotten passwords.
39:
40: This is part of the LearningOnline Network with CAPA project
41: described at http://www.lon-capa.org.
42:
43: =head1 OVERVIEW
44:
45: A user with an e-mail address associated with his/her LON-CAPA username
1.22 raeburn 46: can reset a forgotten password, using a link sent to the e-mail address
1.21 raeburn 47: if the authentication type for the account is "internal".
48:
49: =cut
50:
1.1 raeburn 51: package Apache::resetpw;
52:
53: use strict;
54: use Apache::Constants qw(:common);
55: use Apache::lonacc;
56: use Apache::lonnet;
57: use Apache::loncommon;
58: use Apache::lonlocal;
59: use LONCAPA;
60:
61: sub handler {
62: my $r = shift;
63: &Apache::loncommon::content_type($r,'text/html');
64: $r->send_http_header;
65: if ($r->header_only) {
66: return OK;
67: }
68: my $contact_name = &mt('LON-CAPA helpdesk');
69: my $contact_email = $r->dir_config('lonSupportEMail');
70: my $server = $r->dir_config('lonHostID');
1.19 raeburn 71: my $defdom = &Apache::lonnet::default_login_domain();
1.23.2.2! raeburn 72: my $handle = &Apache::lonnet::check_for_valid_session($r);
! 73: my $lonidsdir=$r->dir_config('lonIDsDir');
! 74: if ($handle ne '') {
! 75: if ($handle=~/^publicuser\_/) {
! 76: unlink($r->dir_config('lonIDsDir')."/$handle.id");
! 77: } else {
! 78: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
! 79: }
! 80: }
1.1 raeburn 81: &Apache::lonacc::get_posted_cgi($r);
82: &Apache::lonlocal::get_language_handle($r);
83: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['token']);
84:
85: my @emailtypes = ('permanentemail','critnotification','notification');
1.2 albertel 86: my $uname = &unescape($env{'form.uname'});
1.1 raeburn 87: my $udom = $env{'form.udom'};
88: my $token = $env{'form.token'};
1.23.2.2! raeburn 89: my $brcrum = [];
! 90: my $bread_crumbs_component = 'Forgotten Password';
! 91: if ($token) {
! 92: push (@{$brcrum},
! 93: {href => '/adm/resetpw',
! 94: text => 'Update Password'});
! 95:
! 96: $bread_crumbs_component = 'Reset Password';
! 97: } else {
! 98: push (@{$brcrum},
! 99: {href => '/adm/resetpw',
! 100: text => 'Account Information'});
! 101: if ($uname && $udom) {
! 102: push (@{$brcrum},
! 103: {href => '/adm/resetpw',
! 104: text => 'Result'});
! 105: }
! 106: }
! 107: my $args = {bread_crumbs => $brcrum,
! 108: bread_crumbs_component => $bread_crumbs_component,
! 109: 'no_inline_link' => 1};
! 110: $r->print(&Apache::loncommon::start_page('Reset password','',$args));
1.11 bisitz 111: $r->print('<h3>'.&mt('Reset forgotten LON-CAPA password').'</h3>');
1.1 raeburn 112: my $output;
113: if ($token) {
114: $output = &reset_passwd($r,$token,$contact_name,$contact_email);
115: } elsif ($uname && $udom) {
1.6 albertel 116: my $domdesc = &Apache::lonnet::domain($udom,'description');
1.1 raeburn 117: my $authtype = &Apache::lonnet::queryauthenticate($uname,$udom);
118: if ($authtype =~ /^internal/) {
1.3 raeburn 119: my $useremail = $env{'form.useremail'};
120: if ($useremail !~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) {
121: $output = &invalid_state('baduseremail',$domdesc,
122: $contact_name,$contact_email);
123: } else {
124: my %userinfo =
1.4 albertel 125: &Apache::lonnet::get('environment',\@emailtypes,
126: $udom,$uname);
1.18 raeburn 127: my @allemails;
1.3 raeburn 128: foreach my $type (@emailtypes) {
1.18 raeburn 129: my $email = $userinfo{$type};
130: my @items;
131: if ($email =~ /,/) {
132: @items = split(',',$userinfo{$type});
133: } else {
134: @items = ($email);
135: }
136: foreach my $item (@items) {
137: if ($item =~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) {
138: unless(grep(/^\Q$item\E$/,@allemails)) {
139: push(@allemails,$item);
140: }
141: }
1.3 raeburn 142: }
143: }
1.18 raeburn 144: if (@allemails > 0) {
145: if (grep(/^\Q$useremail\E$/,@allemails)) {
146: $output = &send_token($uname,$udom,$useremail,$server,
1.3 raeburn 147: $domdesc,$contact_name,
148: $contact_email);
149: } else {
150: $output = &invalid_state('mismatch',$domdesc,
151: $contact_name,
152: $contact_email);
153: }
154: } else {
155: $output = &invalid_state('missing',$domdesc,
156: $contact_name,$contact_email);
1.1 raeburn 157: }
158: }
159: } elsif ($authtype =~ /^(krb|unix|local)/) {
160: $output = &invalid_state('authentication',$domdesc,
161: $contact_name,$contact_email);
162: } else {
163: $output = &invalid_state('invalid',$domdesc,
164: $contact_name,$contact_email);
165: }
166: } else {
167: $output = &get_uname($defdom);
168: }
169: $r->print($output);
170: $r->print(&Apache::loncommon::end_page());
171: return OK;
172: }
173:
174: sub get_uname {
175: my ($defdom) = @_;
176: my %lt = &Apache::lonlocal::texthash(
177: unam => 'username',
178: udom => 'domain',
1.12 schafran 179: uemail => 'E-mail address in LON-CAPA',
1.1 raeburn 180: proc => 'Proceed');
181:
1.23 bisitz 182: my $msg = &mt('If you use the same account for other campus services besides LON-CAPA, (e.g., e-mail, course registration, etc.), a separate centrally managed mechanism likely exists to reset a password. However, if your account is used for just LON-CAPA access you will probably be able to reset a password from this page.');
1.8 bisitz 183: $msg .= '<br /><br />'.&mt('Three conditions must be met:')
184: .'<ul><li>'.&mt('An e-mail address must have previously been associated with your LON-CAPA username.').'</li>'
185: .'<li>'.&mt('You must be able to access e-mail sent to that address.').'</li>'
186: .'<li>'.&mt('Your LON-CAPA account must be of a type for which LON-CAPA can reset a password.')
187: .'</ul>';
1.23.2.2! raeburn 188: $msg .= '<form name="forgotpw" method="post" action="/adm/resetpw">'.
! 189: &Apache::lonhtmlcommon::start_pick_box().
! 190: &Apache::lonhtmlcommon::row_title('LON-CAPA '.$lt{'unam'}).
! 191: '<input type="text" name="uname" size="20" />'.
! 192: &Apache::lonhtmlcommon::row_closure(1).
! 193: &Apache::lonhtmlcommon::row_title('LON-CAPA '.$lt{'udom'}).
! 194: &Apache::loncommon::select_dom_form($defdom,'udom').
! 195: &Apache::lonhtmlcommon::row_closure(1).
! 196: &Apache::lonhtmlcommon::row_title($lt{'uemail'}).
! 197: '<input type="text" name="useremail" size="30" />'.
! 198: &Apache::lonhtmlcommon::end_pick_box().
! 199: '<br /><br /><input type="submit" name="resetter" value="'.$lt{'proc'}.'" /></form>';
1.1 raeburn 200: return $msg;
201: }
202:
203: sub send_token {
204: my ($uname,$udom,$email,$server,$domdesc,$contact_name,
205: $contact_email) = @_;
1.11 bisitz 206: my $msg = &mt('Thank you for your request to reset the password for your LON-CAPA account.').'<br /><br />';
1.1 raeburn 207:
208: my $now = time;
209: my $temppasswd = &create_passwd();
1.2 albertel 210: my %info = ('ip' => $ENV{'REMOTE_ADDR'},
211: 'time' => $now,
212: 'domain' => $udom,
213: 'username' => $uname,
214: 'email' => $email,
215: 'temppasswd' => $temppasswd);
1.1 raeburn 216:
1.3 raeburn 217: my $token = &Apache::lonnet::tmpput(\%info,$server,'resetpw');
218: if ($token !~ /^error/ && $token ne 'no_such_host') {
1.2 albertel 219: my $esc_token = &escape($token);
1.15 raeburn 220: my $showtime = &Apache::lonlocal::locallocaltime(time);
221: my $reseturl = &Apache::lonnet::absolute_url().'/adm/resetpw?token='.$esc_token;
1.23.2.2! raeburn 222: my $mailmsg = &mt('A request was submitted on [_1] for reset of the password for your LON-CAPA account.',$showtime)." \n".&mt('To complete this process please open a web browser and enter the following URL in the address/location box: [_1]',"\n\n".$reseturl);
1.1 raeburn 223: my $result = &send_mail($domdesc,$email,$mailmsg,$contact_name,
224: $contact_email);
225: if ($result eq 'ok') {
1.13 schafran 226: $msg .= &mt("An e-mail sent to the e-mail address associated with your LON-CAPA account includes the web address for the link you should use to complete the reset process.<br /><br />The link included in the message will be valid for the next <b>two</b> hours.");
1.1 raeburn 227: } else {
1.7 albertel 228: $msg .= &mt("An error occurred when sending a message to the e-mail address associated with your LON-CAPA account. Please contact the [_1] ([_2]) for assistance.",$contact_name,$contact_email);
1.1 raeburn 229: }
230: } else {
1.4 albertel 231: $msg .= &mt("An error occurred creating a token required for the password reset process. Please contact the [_1] ([_2]) for assistance.",$contact_name,$contact_email);
1.1 raeburn 232: }
233: return $msg;
234: }
235:
236: sub send_mail {
237: my ($domdesc,$email,$mailmsg,$contact_name,$contact_email) = @_;
238: my $outcome;
239: my $requestmail = "To: $email\n".
240: "From: $contact_name <$contact_email>\n".
241: "Subject: ".&mt('Your LON-CAPA account')."\n".
1.23.2.1 raeburn 242: "Content-type: text/plain\;charset=UTF-8\n".
1.1 raeburn 243: "\n\n".$mailmsg."\n\n".
244: &mt('[_1] LON-CAPA support team',$domdesc)."\n".
245: "$contact_email\n";
246: if (open(MAIL, "|/usr/lib/sendmail -oi -t -odb")) {
247: print MAIL $requestmail;
248: close(MAIL);
249: $outcome = 'ok';
250: } else {
251: $outcome = 'fail';
252: }
253: return $outcome;
254: }
255:
256: sub invalid_state {
257: my ($error,$domdesc,$contact_name,$contact_email) = @_;
258: my $msg;
259: if ($error eq 'invalid') {
1.23.2.2! raeburn 260: $msg = '<p class="LC_warning">'.&mt('The username you provided was not verified as a valid username in the LON-CAPA system for the [_1] domain.',$domdesc)
! 261: .'</p>'.&mt('Please [_1]go back[_2] and try again.','<a href="javascript:history.go(-1)"><u>','</u></a>');
1.1 raeburn 262: } else {
1.3 raeburn 263: if ($error eq 'baduseremail') {
264: $msg = &mt('The e-mail address you provided does not appear to be a valid address.');
265: } elsif ($error eq 'mismatch') {
266: $msg = &mt('The e-mail address you provided does not match the address recorded in the LON-CAPA system for the username and domain you provided.');
267: } elsif ($error eq 'missing') {
1.1 raeburn 268: $msg = &mt('A valid e-mail address was not located in the LON-CAPA system for the username and domain you provided.');
269: } elsif ($error eq 'authentication') {
270: $msg = &mt('The username you provided uses an authentication type which can not be reset directly via LON-CAPA.');
271: }
1.23.2.2! raeburn 272: $msg = '<p class="LC_warning">'.$msg.'</p>';
1.1 raeburn 273: if ($contact_email ne '') {
274: my $escuri = &HTML::Entities::encode('/adm/resetpw','&<>"');
1.8 bisitz 275: $msg .= '<br /> '.&mt('You may wish to contact the [_1]LON-CAPA helpdesk[_2] for the [_3] domain.'
276: ,'<a href="/adm/helpdesk?origurl='.$escuri.'">','</a>',$domdesc);
1.1 raeburn 277: } else {
1.8 bisitz 278: $msg .= '<br /> '.&mt('You may wish to send an e-mail to the server administrator: [_1] for the [_2] domain.',$Apache::lonnet::perlvar{'AdminEmail'},$domdesc);
1.1 raeburn 279: }
280: }
281: return $msg;
282: }
283:
284: sub reset_passwd {
285: my ($r,$token,$contact_name,$contact_email) = @_;
286: my $msg;
287: my %data = &Apache::lonnet::tmpget($token);
288: my $now = time;
289: if (keys(%data) == 0) {
1.17 bisitz 290: $msg = &mt('Sorry, the URL you provided to complete the reset of your password was invalid. Either the token included in the URL has been deleted or the URL you provided was invalid. Please submit a [_1]new request[_2] for a password reset, and follow the link to the new URL included in the e-mail that will be sent to you, to allow you to enter a new password.'
291: ,'<a href="/adm/resetpw">','</a>');
1.1 raeburn 292: return $msg;
293: }
294: if (($data{'time'} =~ /^\d+$/) &&
295: ($data{'username'} ne '') &&
296: ($data{'domain'} ne '') &&
1.3 raeburn 297: ($data{'email'} =~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) &&
1.1 raeburn 298: ($data{'temppasswd'} =~/^\w+$/)) {
1.9 raeburn 299: my $reqtime = &Apache::lonlocal::locallocaltime($data{'time'});
1.1 raeburn 300: if ($now - $data{'time'} < 7200) {
301: if ($env{'form.action'} eq 'verify_and_change_pass') {
1.22 raeburn 302: unless (($env{'form.uname'} eq $data{'username'}) && ($env{'form.udom'} eq $data{'domain'}) && ($env{'form.email'} eq $data{'email'})) {
303: $msg = &generic_failure_msg($contact_name,$contact_email);
304: return $msg;
305: }
1.1 raeburn 306: my $change_failed =
1.2 albertel 307: &Apache::lonpreferences::verify_and_change_password($r,'reset_by_email',$token);
1.1 raeburn 308: if (!$change_failed) {
309: my $delete = &Apache::lonnet::tmpdel($token);
1.9 raeburn 310: my $now = &Apache::lonlocal::locallocaltime(time);
1.1 raeburn 311: my $domdesc =
1.6 albertel 312: &Apache::lonnet::domain($data{'domain'},'description');
1.1 raeburn 313: my $mailmsg = &mt('The password for your LON-CAPA account in the [_1] domain was changed [_2] from IP address: [_3]. If you did not perform this change or authorize it, please contact the [_4] ([_5]).',$domdesc,$now,$ENV{'REMOTE_ADDR'},$contact_name,$contact_email)."\n";
314: my $result = &send_mail($domdesc,$data{'email'},$mailmsg,
315: $contact_name,$contact_email);
316: if ($result eq 'ok') {
317: $msg .= &mt('An e-mail confirming setting of the password for your LON-CAPA account has been sent to [_1].',$data{'email'});
318: } else {
319: $msg .= &mt('An error occurred when sending e-mail to [_1] confirming setting of your new password.',$data{'email'});
320: }
1.17 bisitz 321: $msg .= '<br /><br />'
322: .'<a href="/adm/login">'.&mt('Go to the login page').'</a>.';
1.20 raeburn 323: } elsif ($change_failed eq 'invalid_client') {
324: my $homeserver = &Apache::lonnet::homeserver($data{'username'},$data{'domain'});
325: if ($homeserver eq 'no_host') {
326: $msg .= &generic_failure_msg($contact_name,$contact_email);
327: } else {
328: my $protocol = $Apache::lonnet::protocol{$homeserver};
329: $protocol = 'http' if ($protocol ne 'https');
330: my $url = $protocol.'://'.&Apache::lonnet::hostname($homeserver).
331: '/adm/resetpw';
332: my ($opentag,$closetag);
333: if ($url) {
334: $opentag = '<a href="'.$url.'">';
335: $closetag = '</a>';
336: }
337: $msg .= &mt('A problem occurred when attempting to reset the password for your account. Please try again from your [_1]home server[_2].',$opentag,$closetag);
338: }
1.1 raeburn 339: } else {
1.20 raeburn 340: $msg .= &generic_failure_msg($contact_name,$contact_email);
1.1 raeburn 341: }
342: } else {
1.13 schafran 343: $r->print(&mt('The token included in an e-mail sent to you [_1] has been verified, so you may now proceed to reset the password for your LON-CAPA account.',$reqtime).'<br /><br />');
1.1 raeburn 344: $r->print(&mt('Please enter the username and domain of the LON-CAPA account, and the associated e-mail address, for which you are setting a password. The new password must contain at least 7 characters.').' '.&mt('Your new password will be sent to the LON-CAPA server in an encrypted form.').'<br />');
345: &Apache::lonpreferences::passwordchanger($r,'','reset_by_email',$token);
346: }
347: } else {
1.17 bisitz 348: $msg = &mt('Sorry, the token generated when you requested a password reset has expired. Please submit a [_1]new request[_2], and follow the link to the web page included in the new e-mail that will be sent to you, to allow you to enter a new password.'
349: ,'<a href="/adm/resetpw">','</a>');
1.1 raeburn 350: }
351: } else {
1.17 bisitz 352: $msg .= &mt('Sorry, the URL generated when you requested reset of your password contained incomplete information. Please submit a [_1]new request[_2] for a password reset, and use the new URL that will be sent to your e-mail account to complete the process.'
353: ,'<a href="/adm/resetpw">','</a>');
1.1 raeburn 354: }
355: return $msg;
356: }
357:
1.20 raeburn 358: sub generic_failure_msg {
359: my ($contact_name,$contact_email) = @_;
360: return &mt('A problem occurred when attempting to reset the password for your account. Please contact the [_1] - ([_2]) for assistance.',
361: $contact_name,'<a href="mailto:'.$contact_email.'">'.$contact_email.'</a>');
362: }
363:
1.1 raeburn 364: sub create_passwd {
365: my $passwd = '';
1.2 albertel 366: my @letts = ("a".."z");
1.1 raeburn 367: for (my $i=0; $i<8; $i++) {
1.2 albertel 368: my $lettnum = int(rand(2));
1.1 raeburn 369: my $item = '';
370: if ($lettnum) {
1.2 albertel 371: $item = $letts[int(rand(26))];
372: my $uppercase = int(rand(2));
1.1 raeburn 373: if ($uppercase) {
374: $item =~ tr/a-z/A-Z/;
375: }
376: } else {
1.2 albertel 377: $item = int(rand(10));
1.1 raeburn 378: }
379: $passwd .= $item;
380: }
381: return ($passwd);
382: }
383:
384: 1;
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to resetpw.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface