[LON-CAPA-cvs] cvs: loncom /interface createaccount.pm
raeburn
lon-capa-cvs-allow@mail.lon-capa.org
Sun, 24 Feb 2008 23:23:40 -0000
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raeburn Sun Feb 24 18:23:40 2008 EDT
Added files:
/loncom/interface createaccount.pm
Log:
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.
--raeburn1203895420
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Index: loncom/interface/createaccount.pm
+++ loncom/interface/createaccount.pm
# The LearningOnline Network
# Allow visitors to create a user account with the username being either an
# institutional log-in ID (institutional authentication required - localauth
# or kerberos) or an e-mail address.
#
# $Id: createaccount.pm,v 1.1 2008/02/24 23:23:39 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
#
package Apache::createaccount;
use strict;
use Apache::Constants qw(:common);
use Apache::lonacc;
use Apache::lonnet;
use Apache::loncommon;
use Apache::lonlocal;
use Apache::resetpw;
use Authen::Captcha;
use DynaLoader; # for Crypt::DES version
use Crypt::DES;
use LONCAPA;
sub handler {
my $r = shift;
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
if ($r->header_only) {
return OK;
}
my $domain = &Apache::lonnet::default_login_domain();
my $domdesc = &Apache::lonnet::domain($domain,'description');
my $start_page =
&Apache::loncommon::start_page('Create a user account in LON-CAPA','',
{
'no_inline_link' => 1,});
$r->print($start_page);
&Apache::lonhtmlcommon::clear_breadcrumbs();
&Apache::lonhtmlcommon::add_breadcrumb
({href=>"/adm/createuser",
text=>"New username"});
my $contact_name = &mt('LON-CAPA helpdesk');
my $contact_email = $r->dir_config('lonSupportEMail');
my $lonhost = $r->dir_config('lonHostID');
my $include = $r->dir_config('lonIncludes');
&Apache::lonacc::get_posted_cgi($r);
&Apache::lonlocal::get_language_handle($r);
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['token']);
my $token = $env{'form.token'};
my $output;
my $cancreate;
my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
if (ref($domconfig{'usercreation'}) eq 'HASH') {
if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
if ($domconfig{'usercreation'}{'cancreate'}{'selfenroll'} ne 'none') {
$cancreate = $domconfig{'usercreation'}{'cancreate'}{'selfenroll'};
}
}
}
$r->print(&Apache::lonhtmlcommon::breadcrumbs('Create account'));
if (!$cancreate) {
$output = &mt('Creation of a new user account using an e-mail address as username or a loginID from your institution is not permitted in the domain: [_1] ([_2])',$domain,$domdesc);
} elsif ($token) {
$output = &process_mailtoken($r,$token,$contact_name,$contact_email,$domain,
$domdesc,$lonhost,$include);
} elsif ($env{'form.create_with_email'}) {
$output = &process_email_request($env{'form.useremail'},$domain,$domdesc,
$contact_name,$contact_email,$cancreate,
$lonhost,$domconfig{'usercreation'});
} elsif ($env{'form.phase'} eq 'username_validation') {
$output = &username_validation($env{'form.uname'},$domain,$domdesc,
$contact_name,$contact_email);
} elsif ($env{'form.phase'} eq 'username_activation') {
(my $result,$output) = &username_activation($env{'form.uname'},
$domain,$domdesc);
} else {
my $now=time;
if ($cancreate eq 'any' || $cancreate eq 'login') {
my $jsh=Apache::File->new($include."/londes.js");
$r->print(<$jsh>);
$r->print(&javascript_setforms($now));
}
$output = &print_username_form($domain,$domdesc,$cancreate,$now,$lonhost);
}
$r->print($output);
$r->print(&Apache::loncommon::end_page());
return OK;
}
sub javascript_setforms {
my ($now) = @_;
my $js = <<ENDSCRIPT;
<script language="JavaScript">
function send() {
this.document.server.elements.uname.value = this.document.client.elements.uname.value;
uextkey=this.document.client.elements.uextkey.value;
lextkey=this.document.client.elements.lextkey.value;
initkeys();
this.document.server.elements.upass.value
= crypted(this.document.client.elements.upass$now.value);
this.document.client.elements.uname.value='';
this.document.client.elements.upass$now.value='';
this.document.server.submit();
return false;
}
</script>
ENDSCRIPT
return $js;
}
sub javascript_checkpass {
my ($now) = @_;
my $nopass = &mt('You must enter a password');
my $mismatchpass = &mt('The passwords you entered did not match.').'\\n'.
&mt('Please try again.');
my $js = <<"ENDSCRIPT";
<script type="text/javascript" language="JavaScript">
function checkpass() {
var upass = this.document.client.elements.upass$now.value;
var upasscheck = this.document.client.elements.upasscheck$now.value;
if (upass == '') {
alert("$nopass");
return;
}
if (upass == upasscheck) {
this.document.client.elements.upasscheck$now.value='';
send();
return;
} else {
alert("$mismatchpass");
return;
}
}
</script>
ENDSCRIPT
return $js;
}
sub print_username_form {
my ($domain,$domdesc,$cancreate,$now,$lonhost) = @_;
my %lt = &Apache::lonlocal::texthash(
unam => 'username',
udom => 'domain',
uemail => 'Email address in LON-CAPA',
proc => 'Proceed');
my $output;
if ($cancreate eq 'any' || $cancreate eq 'login') {
my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
if ((($domdefaults{'auth_def'} =~/^krb/) && ($domdefaults{'auth_arg_def'} ne '')) || ($domdefaults{'auth_def'} eq 'localauth')) {
$output = '<div class="LC_left_float"><h3>'.&mt('Create account with a username provided by your institution').'</h3>';
$output .= &mt('If you already have a Log-in ID at your institution, you may be able to use it[_1] for LON-CAPA.','<br />').' '.&mt('Type in your Log-in ID and password to find out.').'<br /><br />';
my ($lkey,$ukey) = &Apache::lonpreferences::des_keys();
my ($lextkey,$uextkey) = &getkeys($lkey,$ukey);
my $logtoken=Apache::lonnet::reply('tmpput:'.$ukey.$lkey.'&createaccount',
$lonhost);
$output .= &serverform($logtoken,$lonhost);
my $unameform = '<input type="text" name="uname" size="10" value="" />';
my $upassform = '<input type="password" name="upass'.$now.'" size="10" />';
my $submit_text = &mt('Create LON-CAPA account');
$output .= '<form name="client" method="post" />'."\n".
&Apache::lonhtmlcommon::start_pick_box()."\n".
&Apache::lonhtmlcommon::row_title(&mt('Log-in ID'),
'LC_pick_box_title')."\n".
$unameform."\n".
&Apache::lonhtmlcommon::row_closure(1)."\n".
&Apache::lonhtmlcommon::row_title(&mt('Password'),
'LC_pick_box_title')."\n".
$upassform."\n".'<br /><br />'."\n".
'<input type="button" name="username_validation" value="'.
$submit_text.'" onclick="javascript:send()" />'."\n".
&Apache::lonhtmlcommon::row_closure(1)."\n".
&Apache::lonhtmlcommon::end_pick_box().'<br /><br />'."\n".
'<input type="hidden" name="lextkey" value="'.$lextkey.'">'."\n".
'<input type="hidden" name="uextkey" value="'.$uextkey.'">'."\n".
'</form></div>';
}
}
if (($cancreate eq 'any') || ($cancreate eq 'email')) {
$output .= '<div class="LC_left_float"><h3>'.&mt('Create account with an e-mail address as your username').'</h3>';
if ($cancreate eq 'any') {
$output .= &mt('Provide your e-mail address to request a LON-CAPA account if you do not have [_1] a log-in ID at your institution.','<br />').'<br /><br />';
} elsif ($cancreate eq 'unofficial') {
$output .= '<br />';
}
my $emailform = '<input type="text" name="useremail" size="25" value="" />';
my $captchaform = &create_captcha();
my $submit_text = &mt('Request LON-CAPA account');
$output .= '<form name="createaccount" method="post" onsubmit="validate_email();" >'.
&Apache::lonhtmlcommon::start_pick_box()."\n".
&Apache::lonhtmlcommon::row_title(&mt('E-mail address'),
'LC_pick_box_title')."\n".
$emailform."\n".
&Apache::lonhtmlcommon::row_closure(1).
&Apache::lonhtmlcommon::row_title(&mt('Validation'),
'LC_pick_box_title')."\n".
$captchaform."\n".'<br /><br />'.
'<input type="submit" name="create_with_email" value="'.
$submit_text.'" />'.
&Apache::lonhtmlcommon::row_closure(1).
&Apache::lonhtmlcommon::end_pick_box().'<br /><br /></form>'.
'</div>';
}
if ($output eq '') {
$output = &mt('Creation of a new user account using either an e-mail address or institutional log-in ID as your username is not permitted in the domain: [_1] ([_2])',$domain,$domdesc);
} else {
$output .= '<div class="LC_clear_float_footer"></div>';
}
return $output;
}
sub process_email_request {
my ($useremail,$domain,$domdesc,$contact_name,$contact_email,$cancreate,
$server,$settings) = @_;
my $useremail = $env{'form.useremail'};
my $output;
if ($cancreate ne 'any' && $cancreate ne 'email') {
$output = &invalid_state('noemails',$domdesc,
$contact_name,$contact_email);
return $output;
} elsif ($useremail !~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) {
$output = &invalid_state('baduseremail',$domdesc,
$contact_name,$contact_email);
return $output;
} else {
my $uhome = &Apache::lonnet::homeserver($useremail,$domain);
if ($uhome ne 'no_host') {
$output = &invalid_state('existinguser',$domdesc,
$contact_name,$contact_email);
return $output;
} else {
my $code = $env{'form.code'};
my $md5sum = $env{'form.crypt'};
my %captcha_params = &captcha_settings();
my $captcha = Authen::Captcha->new(
output_folder => $captcha_params{'output_dir'},
data_folder => $captcha_params{'db_dir'},
);
my $captcha_chk = $captcha->check_code($code,$md5sum);
my %captcha_hash = (
0 => 'Code not checked (file error)',
-1 => 'Failed: code expired',
-2 => 'Failed: invalid code (not in database)',
-3 => 'Failed: invalid code (code does not match crypt)',
);
if ($captcha_chk != 1) {
$output = &invalid_state('captcha',$domdesc,$contact_name,
$contact_email,$captcha_hash{$captcha_chk});
return $output;
}
my (%rulematch,%inst_results,%curr_rules,%got_rules,%alerts);
my $uhome=&Apache::lonnet::homeserver($useremail,$domain);
if ($uhome eq 'no_host') {
my $checkhash;
my $checks = { 'username' => 1 };
$checkhash->{$useremail.':'.$domain} = { 'newuser' => 1, };
&Apache::loncommon::user_rule_check($checkhash,$checks,
\%alerts,\%rulematch,\%inst_results,\%curr_rules,
\%got_rules);
if (ref($alerts{'useremail'}) eq 'HASH') {
if (ref($alerts{'useremail'}{$domain}) eq 'HASH') {
if ($alerts{'username'}{$domain}{$useremail}) {
$output = &invalid_state('userrules',$domdesc,
$contact_name,$contact_email);
return $output;
}
}
}
my $format_msg =
&guest_format_check($useremail,$domain,$cancreate,
$settings);
if ($format_msg) {
$output = &invalid_state('userformat',$domdesc,$contact_name,
$contact_email,$format_msg);
return $output;
}
}
}
}
$output = &send_token($domain,$useremail,$server,$domdesc,$contact_name,
$contact_email);
return $output;
}
sub send_token {
my ($domain,$email,$server,$domdesc,$contact_name,$contact_email) = @_;
my $msg = &mt('Thank you for your request to create a new LON-CAPA account.').'<br /><br />';
my $now = time;
my %info = ('ip' => $ENV{'REMOTE_ADDR'},
'time' => $now,
'domain' => $domain,
'username' => $email);
my $token = &Apache::lonnet::tmpput(\%info,$server);
if ($token !~ /^error/ && $token ne 'no_such_host') {
my $esc_token = &escape($token);
my $mailmsg = &mt('A request was submitted on [_1] for creation of a LON-CAPA account in the [_2] domain.',localtime(time),$domdesc).' '.
&mt('To complete this process please open a web browser and enter the following ".
"URL in the address/location box: ').&Apache::lonnet::absolute_url()."/adm/createaccount?token=$esc_token";
my $result = &Apache::resetpw::send_mail($domdesc,$email,$mailmsg,$contact_name,
$contact_email);
if ($result eq 'ok') {
$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>');
} else {
$msg .= &mt('An error occurred when sending a message to the e-mail address you provided. Please contact the [_1] ([_2]) for assistance.',$contact_name,$contact_email);
}
} else {
$msg .= &mt('An error occurred creating a token required for the account creation process. Please contact the [_1] ([_2]) for assistance.',$contact_name,$contact_email);
}
return $msg;
}
sub process_mailtoken {
my ($r,$token,$contact_name,$contact_email,$domain,$domdesc,$lonhost,$include) = @_;
my $msg;
my %data = &Apache::lonnet::tmpget($token);
my $now = time;
if (keys(%data) == 0) {
$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.');
return $msg;
}
if (($data{'time'} =~ /^\d+$/) &&
($data{'domain'} ne '') &&
($data{'username'} =~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/)) {
my $reqtime = localtime($data{'time'});
if ($now - $data{'time'} < 7200) {
if ($env{'form.phase'} eq 'createaccount') {
my ($result,$output) = &create_account($r,$domain,$lonhost,$token,
$data{'username'},$domdesc);
if ($result eq 'ok') {
$msg = $output;
my $delete = &Apache::lonnet::tmpdel($token);
my $now = localtime(time);
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";
my $mailresult = &Apache::resetpw::send_mail($domdesc,$data{'email'},
$mailmsg,$contact_name,
$contact_email);
if ($mailresult eq 'ok') {
$msg .= &mt('An e-mail confirming creation of your new LON-CAPA account has been sent to [_1].',$data{'username'});
} else {
$msg .= &mt('An error occurred when sending e-mail to [_1] confirming creation of your LON-CAPA account.',$data{'username'});
}
$msg .= '<br /><br />'.&mt('<a href="/adm/login">Go to the login page</a>.');
} else {
$msg .= &mt('A problem occurred when attempting to create your new LON-CAPA account').'<br />'.$output.&mt('Please contact the [_1] - (<a href="mailto:[_2]">[_2]</a>) for assistance.',$contact_name,$contact_email);
}
} else {
$r->print(&mt('Please provide user information and a password for your new account.').'<br />'.&mt('Your password, which must contain at least seven characters, will be sent to the LON-CAPA server in an encrypted form.').'<br />');
&print_dataentry_form($r,$domain,$lonhost,$include,$token,$now,$data{'username'});
}
} else {
$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.');
}
} else {
$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.');
}
return $msg;
}
sub print_dataentry_form {
my ($r,$domain,$lonhost,$include,$mailtoken,$now,$username) = @_;
my ($error,$output);
if (open(my $jsh,"<$include/londes.js")) {
while(my $line = <$jsh>) {
$r->print($line);
}
close($jsh);
$r->print(&javascript_setforms($now)."\n".&javascript_checkpass($now));
my ($lkey,$ukey) = &Apache::lonpreferences::des_keys();
my ($lextkey,$uextkey) = &getkeys($lkey,$ukey);
my $logtoken=Apache::lonnet::reply('tmpput:'.$ukey.$lkey.'&createaccount',
$lonhost);
my @userinfo = ('firstname','middlename','lastname','generation','id',
'permanentemail');
my %lt=&Apache::lonlocal::texthash(
'pd' => "Personal Data",
'firstname' => "First Name",
'middlename' => "Middle Name",
'lastname' => "Last Name",
'generation' => "Generation",
'permanentemail' => "Permanent e-mail address",
'id' => "ID/Student Number",
'lg' => "Login Data"
);
my %textboxsize = (
firstname => '15',
middlename => '15',
lastname => '15',
generation => '5',
id => '15',
);
my $genhelp=&Apache::loncommon::help_open_topic('Generation');
$output = '<div class="LC_left_float"><h3>'.$lt{'pd'}.'</h3>'.
'<form name="server" method="post" target="_top">'.
&Apache::lonhtmlcommon::start_pick_box();
foreach my $item (@userinfo) {
my $rowtitle = $lt{$item};
if ($item eq 'generation') {
$rowtitle = $genhelp.$rowtitle;
}
$output .= &Apache::lonhtmlcommon::row_title($rowtitle,undef,'LC_oddrow_value')."\n";
if ($item eq 'permanentemail') {
$output .= $username;
} else {
$output .= '<input type="text" name="c'.$item.'" size="'.$textboxsize{$item}.'" value="" />';
}
$output .= &Apache::lonhtmlcommon::row_closure(1);
}
$output .= &Apache::lonhtmlcommon::end_pick_box();
$output .= <<"ENDSERVERFORM";
<input type="hidden" name="logtoken" value="$logtoken" />
<input type="hidden" name="token" value="$mailtoken" />
<input type="hidden" name="serverid" value="$lonhost" />
<input type="hidden" name="uname" value="" />
<input type="hidden" name="upass" value="" />
<input type="hidden" name="phase" value="createaccount" />
</form></div>
ENDSERVERFORM
my $upassone = '<input type="password" name="upass'.$now.'" size="10" />';
my $upasstwo = '<input type="password" name="upasscheck'.$now.'" size="10" />';
my $submit_text = &mt('Create LON-CAPA account');
$output .= '<div class="LC_left_float"><h3>'.$lt{'lg'}.'</h3>'."\n".
'<form name="client" method="post" />'."\n".
&Apache::lonhtmlcommon::start_pick_box()."\n".
&Apache::lonhtmlcommon::row_title(&mt('Username'),
'LC_pick_box_title')."\n".
$username."\n".
&Apache::lonhtmlcommon::row_closure(1)."\n".
&Apache::lonhtmlcommon::row_title(&mt('Password'),
'LC_pick_box_title')."\n".
$upassone."\n".
&Apache::lonhtmlcommon::row_closure(1)."\n".
&Apache::lonhtmlcommon::row_title(&mt('Confirm password'),
'LC_pick_box_title')."\n".
$upasstwo."\n".
&Apache::lonhtmlcommon::row_closure(1)."\n".
&Apache::lonhtmlcommon::end_pick_box()."\n".
'<input type="hidden" name="uname" value="'.$username.'">'."\n".
'<input type="hidden" name="lextkey" value="'.$lextkey.'">'."\n".
'<input type="hidden" name="uextkey" value="'.$uextkey.'">'."\n".
'</form></div>'."\n".
'<div class="LC_clear_float_footer"><br /><br />'."\n".
'<form name="buttonform">'."\n".
'<input type="button" name="createaccount" value="'.
$submit_text.'" onclick="javascript:checkpass();" /></form></div>';
$r->print($output);
} else {
$error = &mt('Could not load javascript file [_1]','londes.js');
$r->print($error);
}
return;
}
sub create_account {
my ($r,$domain,$lonhost,$logtoken,$username,$domdesc) = @_;
my ($retrieved,$output,$upass) = &process_credentials($env{'form.logtoken'},
$env{'form.serverid'});
# Error messages
my $error = '<span class="LC_error">'.&mt('Error').': ';
my $end = '</span><br /><br />';
my $rtnlink = '<a href="javascript:history.back();" />'.
&mt('Return to previous page').'</a>'.
&Apache::loncommon::end_page();
if ($retrieved eq 'ok') {
if ($env{'form.cid'} ne '') {
my ($result,$userchkmsg) = &check_id($username,$domain,$domdesc);
if ($result eq 'fail') {
$output = $error.&mt('Invalid ID format').$end.
$userchkmsg.$rtnlink;
return ('fail',$output);
}
}
} else {
return ('fail',$error.$output.$end.$rtnlink);
}
# Call modifyuser
my $result =
&Apache::lonnet::modifyuser($domain,$username,$env{'form.cid'},
'internal',$upass,$env{'form.cfirstname'},
$env{'form.cmiddlename'},$env{'form.clastname'},
$env{'form.cgeneration'},undef,undef,$username);
$output = &mt('Generating user').': '.$result;
my $uhome = &Apache::lonnet::homeserver($username,$domain);
$output .= '<br />'.&mt('Home server').': '.$uhome.' '.
&Apache::lonnet::hostname($uhome).'<br /><br />';
return ('ok',$output);
}
sub username_validation {
my ($username,$domain,$domdesc,$contact_name,$contact_email) = @_;
my ($retrieved,$output,$upass);
$username= &LONCAPA::clean_username($username);
$domain = &LONCAPA::clean_domain($domain);
my $uhome = &Apache::lonnet::homeserver($username,$domain);
if ($uhome ne 'no_host') {
$output = &invalid_state('existinguser',$domdesc,
$contact_name,$contact_email);
return $output;
}
($retrieved,$output,$upass) = &process_credentials($env{'form.logtoken'},
$env{'form.serverid'});
if ($retrieved eq 'ok') {
my $primlibserv = &Apache::lonnet::domain($domain,'primary');
my $authok;
my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
if ((($domdefaults{'auth_def'} =~/^krb(4|5)$/) && ($domdefaults{'auth_arg_def'} ne '')) || ($domdefaults{'auth_def'} eq 'localauth')) {
my $checkdefauth = 1;
$authok =
&Apache::lonnet::reply("encrypt:auth:$domain:$username:$upass:$checkdefauth",$primlibserv);
} else {
$authok = 'non_authorized';
}
if ($authok eq 'authorized') {
my (%rulematch,%inst_results,$newuser,%alerts,%curr_rules,%got_rules);
$newuser = 1;
my $checkhash;
my $checks = { 'username' => 1 };
$checkhash->{$username.':'.$domain} = { 'newuser' => $newuser };
&Apache::loncommon::user_rule_check($checkhash,$checks,
\%alerts,\%rulematch,\%inst_results,\%curr_rules,\%got_rules);
if (ref($alerts{'username'}) eq 'HASH') {
if (ref($alerts{'username'}{$domain}) eq 'HASH') {
if ($alerts{'username'}{$domain}{$username}) {
my $userchkmsg;
if (ref($curr_rules{$domain}) eq 'HASH') {
$userchkmsg =
&Apache::loncommon::instrule_disallow_msg('username',
$domdesc,1).
&Apache::loncommon::user_rule_formats($domain,
$domdesc,$curr_rules{$domain}{'username'},
'username');
}
return $userchkmsg;
}
}
}
my $submit_text = &mt('Create LON-CAPA account');
$output =
'<form method="post">'.
&Apache::loncreateuser::personal_data_display($username,$domain,1,
undef,$inst_results{$username.':'.$domain}).
'<br /><br /><input type="hidden" name="uname" value="'.$username.'" />'.
'<input type="hidden" name="phase" value="username_activation" />'.
'<input type="submit" name="newaccount" value="'.
$submit_text.'" /></form>';
} else {
$output = &mt('Not authenticated').' '.&mt('Please check the username and password');
}
}
return $output;
}
sub username_activation {
my ($username,$domain,$domdesc) = @_;
my $output;
my $error = '<span class="LC_error">'.&mt('Error').': ';
my $end = '</span><br /><br />';
my $rtnlink = '<a href="javascript:history.back();" />'.
&mt('Return to previous page').'</a>'.
&Apache::loncommon::end_page();
my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
if ((($domdefaults{'auth_def'} =~/^krb(4|5)$/) && ($domdefaults{'auth_arg_def'} ne '')) || ($domdefaults{'auth_def'} eq 'localauth')) {
if ($env{'form.cid'} ne '') {
my ($result,$userchkmsg) = &check_id($username,$domain,$domdesc);
if ($result eq 'fail') {
$output = $error.&mt('Invalid ID format').$end.
$userchkmsg.$rtnlink;
return ('fail',$output);
}
}
# Call modifyuser
my $result =
&Apache::lonnet::modifyuser($domain,$username,$env{'form.cid'},
$domdefaults{'auth_def'},
$domdefaults{'auth_arg_def'},$env{'form.cfirstname'},
$env{'form.cmiddlename'},$env{'form.clastname'},
$env{'form.cgeneration'},undef,undef,
$env{'form.cpermanentemail'});
$output = &mt('Generating user').': '.$result;
my $uhome = &Apache::lonnet::homeserver($username,$domain);
$output .= '<br />'.&mt('Home server').': '.$uhome.' '.
&Apache::lonnet::hostname($uhome).'<br /><br />';
return ('ok',$output);
} else {
$output = &mt("User account creation is not available for the current default authentication type.\n");
return('fail',$output);
}
}
sub check_id {
my ($username,$domain,$domdesc) = @_;
# Check ID format
my (%alerts,%rulematch,%inst_results,%curr_rules,%checkhash);
my %checks = ('id' => 1);
%{$checkhash{$username.':'.$domain}} = (
'newuser' => 1,
'id' => $env{'form.cid'},
);
&Apache::loncommon::user_rule_check(\%checkhash,\%checks,\%alerts,
\%rulematch,\%inst_results,\%curr_rules);
if (ref($alerts{'id'}) eq 'HASH') {
if (ref($alerts{'id'}{$domain}) eq 'HASH') {
if ($alerts{'id'}{$domain}{$env{'form.cid'}}) {
my $userchkmsg;
if (ref($curr_rules{$domain}) eq 'HASH') {
$userchkmsg =
&Apache::loncommon::instrule_disallow_msg('id',
$domdesc,1).
&Apache::loncommon::user_rule_formats($domain,
$domdesc,$curr_rules{$domain}{'id'},'id');
}
return ('fail',$userchkmsg);
}
}
}
return;
}
sub invalid_state {
my ($error,$domdesc,$contact_name,$contact_email,$msgtext) = @_;
my $msg;
if ($error eq 'baduseremail') {
$msg = &mt('The e-mail address you provided does not appear to be a valid address.');
} elsif ($error eq 'existinguser') {
$msg = &mt('The e-mail address you provided is already in use as a username in this LON-CAPA domain.');
} elsif ($error eq 'userrules') {
$msg = &mt('Username rules for this LON-CAPA domain do not allow the e-mail address you provided to be used as a username.');
} elsif ($error eq 'userformat') {
$msg = &mt('The e-mail address you provided may not be used as a username in this LON-CAPA domain.');
} elsif ($error eq 'captcha') {
$msg = &mt('Validation of the code your entered failed.');
} elsif ($error eq 'noemails') {
$msg = &mt('Creation of a new user account using an e-mail address as username is not permitted in this LON-CAPA domain.');
}
if ($msgtext) {
$msg .= '<br />'.$msgtext;
}
if ($contact_email ne '') {
my $escuri = &HTML::Entities::encode('/adm/createaccount','&<>"');
$msg .= '<br />'.&mt(' You may wish to contact the <a href="/adm/helpdesk?origurl=[_1]">LON-CAPA helpdesk</a> for the [_2] domain.',$escuri,$domdesc);
} else {
$msg .= '<br />'.&mt(' You may wish to send an e-mail to the server administrator: [_1] for the [_2] domain.',$Apache::lonnet::perlvar{'AdminEmail'},$domdesc);
}
return $msg;
}
sub create_captcha {
my ($output_dir,$db_dir) = @_;
my %captcha_params = &captcha_settings();
my $captcha = Authen::Captcha->new(
output_folder => $captcha_params{'output_dir'},
data_folder => $captcha_params{'db_dir'},
);
my $md5sum = $captcha->generate_code($captcha_params{'numchars'});
my $output = '<input type="hidden" name="crypt" value="'.$md5sum.'" />'."\n".
&mt('Type in the letters/numbers shown below').' '.
'<input type="text" size="5" name="code" value="" /><br />'.
'<img src="'.$captcha_params{'www_output_dir'}.'/'.$md5sum.'.png">';
return $output;
}
sub captcha_settings {
my %captcha_params = (
output_dir => "/home/httpd/html/captcha",
www_output_dir => "/captcha",
db_dir => "/home/www/captchadb",
numchars => '5',
);
return %captcha_params;
}
sub getkeys {
my ($lkey,$ukey) = @_;
my $lextkey=hex($lkey);
if ($lextkey>2147483647) { $lextkey-=4294967296; }
my $uextkey=hex($ukey);
if ($uextkey>2147483647) { $uextkey-=4294967296; }
return ($lextkey,$uextkey);
}
sub serverform {
my ($logtoken,$lonhost,$mailtoken) = @_;
my $output .= <<ENDSERVERFORM;
<form name="server" method="post" target="_top">
<input type="hidden" name="logtoken" value="$logtoken" />
<input type="hidden" name="token" value="$mailtoken" />
<input type="hidden" name="serverid" value="$lonhost" />
<input type="hidden" name="uname" value="" />
<input type="hidden" name="upass" value="" />
<input type="hidden" name="phase" value="username_validation" />
</form>
ENDSERVERFORM
return $output;
}
sub process_credentials {
my ($logtoken,$lonhost) = @_;
my $tmpinfo=Apache::lonnet::reply('tmpget:'.$logtoken,$lonhost);
my ($retrieved,$output,$upass);
if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
$output = &mt('Information needed to retrieve your log-in information is missing, inaccessible or expired.').'<br />'.&mt('You may need to reload the previous page to obtain a new token.');
return ($retrieved,$output,$upass);
} else {
my $reply = &Apache::lonnet::reply('tmpdel:'.$logtoken,$lonhost);
if ($reply eq 'ok') {
$retrieved = 'ok';
} else {
$output = &mt('Session could not be opened.');
}
}
my ($key,$caller)=split(/&/,$tmpinfo);
if ($caller eq 'createaccount') {
$upass = &Apache::lonpreferences::des_decrypt($key,$env{'form.upass'});
} else {
$output = &mt('Unable to retrieve your log-in information - unexpected context');
}
return ($retrieved,$output,$upass);
}
sub guest_format_check {
my ($useremail,$domain,$cancreate,$settings) = @_;
my ($login,$format_match,$format_msg,@user_rules);
if (ref($settings) eq 'HASH') {
if (ref($settings->{'email_rule'}) eq 'ARRAY') {
push(@user_rules,@{$settings->{'email_rule'}});
}
}
if (@user_rules > 0) {
my %rule_check =
&Apache::lonnet::inst_rulecheck($domain,$useremail,undef,
'selfenroll',\@user_rules);
if (keys(%rule_check) > 0) {
foreach my $item (keys(%rule_check)) {
if ($rule_check{$item}) {
$format_match = 1;
last;
}
}
}
}
if ($format_match) {
($login) = ($useremail =~ /^([^\@]+)\@/);
$format_msg = '<br />'.&mt("Your e-mail address uses the same internet domain as your institution's LON-CAPA service.").'<br />'.&mt('Creation of a LON-CAPA account with this type of e-mail address as username is not permitted.').'<br />';
if ($cancreate eq 'any' || $cancreate eq 'login') {
$format_msg .= &mt('You should request creation of a LON-CAPA account for a Log-in ID of "[_1]" at your institution instead.',$login).'<br />';
}
}
return $format_msg;
}
1;
--raeburn1203895420--