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londropadd.pm
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Fri Jun 3 16:27:26 2005 UTC (19 years, 10 months ago) by
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CVS tags:
version_2_0_X,
version_2_0_2,
version_2_0_1,
version_2_0_0,
version_1_99_3,
version_1_99_2,
version_1_99_1,
version_1_99_0,
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Bug #3805: explain authentication mechanisms
# The LearningOnline Network with CAPA
# Handler to drop and add students in courses
#
# $Id: londropadd.pm,v 1.130 2005/06/03 16:27:26 www 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::londropadd;
use strict;
use Apache::lonnet;
use Apache::loncommon();
use Apache::lonhtmlcommon();
use Apache::Constants qw(:common :http REDIRECT);
use Spreadsheet::WriteExcel;
use Apache::lonstathelpers();
use Apache::lonlocal;
###############################################################
###############################################################
sub header {
my $html=&Apache::lonxml::xmlbegin();
my $bodytag=&Apache::loncommon::bodytag('Enrollment Manager');
my $title = &mt('LON-CAPA Enrollment Manager');
return(<<ENDHEAD);
$html
<head>
<title>$title</title>
</head>
$bodytag
<form method="post" enctype="multipart/form-data"
action="/adm/dropadd" name="studentform">
ENDHEAD
}
###############################################################
###############################################################
# Drop student from all sections of a course, except optional $csec
sub modifystudent {
my ($udom,$unam,$courseid,$csec,$desiredhost)=@_;
# if $csec is undefined, drop the student from all the courses matching
# this one. If $csec is defined, drop them from all other sections of
# this course and add them to section $csec
$courseid=~s/\_/\//g;
$courseid=~s/^(\w)/\/$1/;
my %roles = &Apache::lonnet::dump('roles',$udom,$unam);
my ($tmp) = keys(%roles);
# Bail out if we were unable to get the students roles
return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
# Go through the roles looking for enrollment in this course
my $result = '';
foreach my $course (keys(%roles)) {
if ($course=~/^$courseid(?:\/)*(?:\s+)*(\w+)*\_st$/) {
# We are in this course
my $section=$1;
$section='' if ($course eq $courseid.'_st');
if (defined($csec) && $section eq $csec) {
$result .= 'ok:';
} elsif ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
my (undef,$end,$start)=split(/\_/,$roles{$course});
my $now=time;
# if this is an active role
if (!($start && ($now<$start)) || !($end && ($now>$end))) {
my $reply=&Apache::lonnet::modifystudent
# dom name id mode pass f m l g
($udom,$unam,'', '', '',undef,undef,undef,undef,
$section,time,undef,undef,$desiredhost);
$result .= $reply.':';
}
}
}
}
if ($result eq '') {
$result = 'Unable to find section for this student';
} else {
$result =~ s/(ok:)+/ok/g;
}
return $result;
}
###############################################################
###############################################################
# build a domain and server selection form
sub domain_form {
my ($defdom) = @_;
# Set up domain and server selection forms
#
# Get the domains
my @domains = &Apache::loncommon::get_domains();
# build up the menu information to be passed to
# &Apache::loncommon::linked_select_forms
my %select_menus;
foreach my $dom (@domains) {
# set up the text for this domain
$select_menus{$dom}->{'text'}= $dom;
# we want a choice of 'default' as the default in the second menu
$select_menus{$dom}->{'default'}= 'default';
$select_menus{$dom}->{'select2'}->{'default'} = 'default';
# Now build up the other items in the second menu
my %servers = &Apache::loncommon::get_library_servers($dom);
foreach my $server (keys(%servers)) {
$select_menus{$dom}->{'select2'}->{$server}
= "$server $servers{$server}";
}
}
my $result = &Apache::loncommon::linked_select_forms
('studentform',' with home server ',$defdom,
'lcdomain','lcserver',\%select_menus);
return $result;
}
###############################################################
###############################################################
# Menu Phase One
sub print_main_menu {
my ($r,$enrl_permission,$view_permission)=@_;
#
my ($cdom,$cnum) = split/_/,$env{'request.course.id'};
my @menu =
(
{ text => 'Upload a class list',
help => 'Course_Create_Class_List',
action => 'upload',
permission => $enrl_permission,
},
{ text => 'Enroll a single student',
help => 'Course_Add_Student',
action => 'enrollstudent',
permission => $enrl_permission,
},
{ text => 'Modify student data',
help => 'Course_Modify_Student_Data',
action => 'modifystudent',
permission => $enrl_permission,
},
{ text => 'View Class List',
help => 'Course_View_Class_List',
action => 'classlist',
permission => $view_permission,
},
{ text => 'Drop Students',
help => 'Course_Drop_Student',
action => 'drop',
permission => $enrl_permission,
},
{ text => 'Automated Enrollment Manager',
permission => &Apache::lonnet::auto_run($cnum,$cdom),
url => '/adm/populate',
},
);
my $menu_html = '';
foreach my $menu_item (@menu) {
next if (! $menu_item->{'permission'});
$menu_html.='<p>';
$menu_html.='<font size="+1">';
if (exists($menu_item->{'url'})) {
$menu_html.=qq{<a href="$menu_item->{'url'}">};
} else {
$menu_html.=
qq{<a href="/adm/dropadd?action=$menu_item->{'action'}">};
}
$menu_html.= &mt($menu_item->{'text'}).'</a></font>';
if (exists($menu_item->{'help'})) {
$menu_html.=
&Apache::loncommon::help_open_topic($menu_item->{'help'});
}
$menu_html.='</p>'.$/;
}
$r->print($menu_html);
return;
}
###############################################################
###############################################################
sub hidden_input {
my ($name,$value) = @_;
return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'."\n";
}
sub print_upload_manager_header {
my ($r,$datatoken,$distotal,$krbdefdom)=@_;
my $javascript;
#
if (! exists($env{'form.upfile_associate'})) {
$env{'form.upfile_associate'} = 'forward';
}
if ($env{'form.associate'} eq 'Reverse Association') {
if ( $env{'form.upfile_associate'} ne 'reverse' ) {
$env{'form.upfile_associate'} = 'reverse';
} else {
$env{'form.upfile_associate'} = 'forward';
}
}
if ($env{'form.upfile_associate'} eq 'reverse') {
$javascript=&upload_manager_javascript_reverse_associate();
} else {
$javascript=&upload_manager_javascript_forward_associate();
}
#
# Deal with restored settings
my $password_choice = '';
if (exists($env{'form.ipwd_choice'}) &&
$env{'form.ipwd_choice'} ne '') {
# If a column was specified for password, assume it is for an
# internal password. This is a bug waiting to be filed (could be
# local or krb auth instead of internal) but I do not have the
# time to mess around with this now.
$password_choice = 'int';
}
#
my $javascript_validations=&javascript_validations('auth',$krbdefdom,
$password_choice);
my $checked=(($env{'form.noFirstLine'})?' checked="1"':'');
$r->print('<h3>'.&mt('Uploading Class List')."</h3>\n".
"<hr>\n".
'<h3>'.&mt('Identify fields')."</h3>\n");
$r->print("<p>\n".
&mt('Total number of records found in file: [_1].',$distotal).
"\n".
"</p><hr>\n");
$r->print(&mt('Enter as many fields as you can. The system will inform you and bring you back to this page if the data selected is insufficient to enroll students in your class.')."<hr>\n");
$r->print(&hidden_input('action','upload').
&hidden_input('state','got_file').
&hidden_input('associate','').
&hidden_input('datatoken',$datatoken).
&hidden_input('fileupload',$env{'form.fileupload'}).
&hidden_input('upfiletype',$env{'form.upfiletype'}).
&hidden_input('upfile_associate',$env{'form.upfile_associate'}));
$r->print('<input type="button" value="Reverse Association" '.
'name="'.&mt('Reverse Association').'" '.
'onClick="javascript:this.form.associate.value=\'Reverse Association\';submit(this.form);" />');
$r->print('<input type="checkbox" name="noFirstLine" $checked />'.
&mt('Ignore First Line'));
$r->print("<hr />\n".
'<script type="text/javascript" language="Javascript">'."\n".
$javascript."\n".$javascript_validations.'</script>');
}
###############################################################
###############################################################
sub javascript_validations {
my ($mode,$krbdefdom,$curr_authtype,$curr_authfield)=@_;
my $authheader;
if ($mode eq 'auth') {
my %param = ( formname => 'studentform',
kerb_def_dom => $krbdefdom,
curr_authtype => $curr_authtype);
$authheader = &Apache::loncommon::authform_header(%param);
} elsif ($mode eq 'createcourse') {
my %param = ( formname => 'ccrs',
kerb_def_dom => $krbdefdom,
curr_authtype => $curr_authtype );
$authheader = &Apache::loncommon::authform_header(%param);
} elsif ($mode eq 'modifycourse') {
my %param = ( formname => 'cmod',
kerb_def_dom => $krbdefdom,
mode => 'modifycourse',
curr_authtype => $curr_authtype,
curr_autharg => $curr_authfield );
$authheader = &Apache::loncommon::authform_header(%param);
}
my %alert = &Apache::lonlocal::texthash
(username => 'You need to specify the username field.',
authen => 'You must choose an authentication type.',
krb => 'You need to specify the Kerberos domain.',
ipass => 'You need to specify the initial password.',
name => 'The optional name field was not specified.',
snum => 'The optional student number field was not specified.',
section => 'The optional section or group field was not specified.',
email => 'The optional email address field was not specified.',
continue => 'Continue enrollment?',
);
# my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
my $function_name =(<<END);
function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
END
my $auth_checks;
if ($mode eq 'createcourse') {
$auth_checks .= (<<END);
if (vf.autoadds[0].checked == true) {
if (current.radiovalue == null || current.radiovalue == 'nochange') {
alert('$alert{'authen'}');
return;
}
}
END
} else {
$auth_checks .= (<<END);
var foundatype=0;
if (founduname==0) {
alert('$alert{'username'}');
return;
}
// alert('current.radiovalue = '+current.radiovalue);
if (current.radiovalue == null || current.radiovalue == '' || current.radiovalue == 'nochange') {
// They did not check any of the login radiobuttons.
alert('$alert{'authen'}');
return;
}
END
}
if ($mode eq 'createcourse') {
$auth_checks .= "
if ( (vf.autoadds[0].checked == true) &&
(vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') ) {
";
} elsif ($mode eq 'modifycourse') {
$auth_checks .= "
if (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') {
";
}
if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
$auth_checks .= (<<END);
var alertmsg = '';
switch (current.radiovalue) {
case 'krb':
alertmsg = '$alert{'krb'}';
break;
default:
alertmsg = '';
}
if (alertmsg != '') {
alert(alertmsg);
return;
}
}
END
} else {
$auth_checks .= (<<END);
foundatype=1;
if (current.argfield == null || current.argfield == '') {
var alertmsg = '';
switch (current.value) {
case 'krb':
alertmsg = '$alert{'krb'}';
break;
case 'loc':
case 'fsys':
alertmsg = '$alert{'ipass'}';
break;
case 'fsys':
alertmsg = '';
break;
default:
alertmsg = '';
}
if (alertmsg != '') {
alert(alertmsg);
return;
}
}
END
}
my $optional_checks = '';
if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
$optional_checks = (<<END);
vf.submit();
}
END
} else {
$optional_checks = (<<END);
var message='';
if (foundname==0) {
message='$alert{'name'}';
}
if (foundid==0) {
if (message!='') {
message+='\\n';
}
message+='$alert{'snum'}';
}
if (foundsec==0) {
if (message!='') {
message+='\\n';
}
message+='$alert{'section'}';
}
if (foundemail==0) {
if (message!='') {
message+='\\n';
}
message+='$alert{'email'}';
}
if (message!='') {
message+= '\\n$alert{'continue'}';
if (confirm(message)) {
vf.state.value='enrolling';
vf.submit();
}
} else {
vf.state.value='enrolling';
vf.submit();
}
}
END
}
my $result = $function_name;
if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
$result .= $auth_checks;
}
$result .= $optional_checks;
if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
$result .= $authheader;
}
return $result;
}
###############################################################
###############################################################
sub upload_manager_javascript_forward_associate {
return(<<ENDPICK);
function verify(vf) {
var founduname=0;
var foundpwd=0;
var foundname=0;
var foundid=0;
var foundsec=0;
var foundemail=0;
var tw;
for (i=0;i<=vf.nfields.value;i++) {
tw=eval('vf.f'+i+'.selectedIndex');
if (tw==1) { founduname=1; }
if ((tw>=2) && (tw<=6)) { foundname=1; }
if (tw==7) { foundid=1; }
if (tw==8) { foundsec=1; }
if (tw==9) { foundpwd=1; }
if (tw==10) { foundemail=1; }
}
verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail);
}
//
// vf = this.form
// tf = column number
//
// values of nw
//
// 0 = none
// 1 = username
// 2 = names (lastname, firstnames)
// 3 = fname (firstname)
// 4 = mname (middlename)
// 5 = lname (lastname)
// 6 = gen (generation)
// 7 = id
// 8 = section
// 9 = ipwd (password)
// 10 = email address
function flip(vf,tf) {
var nw=eval('vf.f'+tf+'.selectedIndex');
var i;
// make sure no other columns are labeled the same as this one
for (i=0;i<=vf.nfields.value;i++) {
if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
eval('vf.f'+i+'.selectedIndex=0;')
}
}
// If we set this to 'lastname, firstnames', clear out all the ones
// set to 'fname','mname','lname','gen' (3,4,5,6) currently.
if (nw==2) {
for (i=0;i<=vf.nfields.value;i++) {
if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
(eval('vf.f'+i+'.selectedIndex')<=6)) {
eval('vf.f'+i+'.selectedIndex=0;')
}
}
}
// If we set this to one of 'fname','mname','lname','gen' (3,4,5,6),
// clear out any that are set to 'lastname, firstnames' (2)
if ((nw>=3) && (nw<=6)) {
for (i=0;i<=vf.nfields.value;i++) {
if (eval('vf.f'+i+'.selectedIndex')==2) {
eval('vf.f'+i+'.selectedIndex=0;')
}
}
}
// If we set the password, make the password form below correspond to
// the new value.
if (nw==9) {
changed_radio('int',document.studentform);
set_auth_radio_buttons('int',document.studentform);
vf.intarg.value='';
vf.krbarg.value='';
vf.locarg.value='';
}
}
function clearpwd(vf) {
var i;
for (i=0;i<=vf.nfields.value;i++) {
if (eval('vf.f'+i+'.selectedIndex')==9) {
eval('vf.f'+i+'.selectedIndex=0;')
}
}
}
ENDPICK
}
###############################################################
###############################################################
sub upload_manager_javascript_reverse_associate {
return(<<ENDPICK);
function verify(vf) {
var founduname=0;
var foundpwd=0;
var foundname=0;
var foundid=0;
var foundsec=0;
var tw;
for (i=0;i<=vf.nfields.value;i++) {
tw=eval('vf.f'+i+'.selectedIndex');
if (i==0 && tw!=0) { founduname=1; }
if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
if (i==6 && tw!=0) { foundid=1; }
if (i==7 && tw!=0) { foundsec=1; }
if (i==8 && tw!=0) { foundpwd=1; }
}
verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
}
function flip(vf,tf) {
var nw=eval('vf.f'+tf+'.selectedIndex');
var i;
// picked the all one one name field, reset the other name ones to blank
if (tf==1 && nw!=0) {
for (i=2;i<=5;i++) {
eval('vf.f'+i+'.selectedIndex=0;')
}
}
//picked one of the piecewise name fields, reset the all in
//one field to blank
if ((tf>=2) && (tf<=5) && (nw!=0)) {
eval('vf.f1.selectedIndex=0;')
}
// intial password specified, pick internal authentication
if (tf==8 && nw!=0) {
changed_radio('int',document.studentform);
set_auth_radio_buttons('int',document.studentform);
vf.krbarg.value='';
vf.intarg.value='';
vf.locarg.value='';
}
}
function clearpwd(vf) {
var i;
if (eval('vf.f8.selectedIndex')!=0) {
eval('vf.f8.selectedIndex=0;')
}
}
ENDPICK
}
###############################################################
###############################################################
sub print_upload_manager_footer {
my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
my ($krbdef,$krbdefdom) =
&Apache::loncommon::get_kerberos_defaults($defdom);
my %param = ( formname => 'document.studentform',
kerb_def_dom => $krbdefdom,
kerb_def_auth => $krbdef
);
if (exists($env{'form.ipwd_choice'}) &&
defined($env{'form.ipwd_choice'}) &&
$env{'form.ipwd_choice'} ne '') {
$param{'curr_authtype'} = 'int';
}
my $krbform = &Apache::loncommon::authform_kerberos(%param);
my $intform = &Apache::loncommon::authform_internal(%param);
my $locform = &Apache::loncommon::authform_local(%param);
my $domform = &domain_form($defdom);
my $date_table = &date_setting_table();
my $Str = "</table>\n";
$Str .= &hidden_input('nfields',$i);
$Str .= &hidden_input('keyfields',$keyfields);
$Str .= '<h3>'.&mt('Login Type')."</h3>\n";
$Str .= "<p>\n".
&mt('Note: this will not take effect if the user already exists').
&Apache::loncommon::help_open_topic('Auth_Options').
"</p><p>\n";
$Str .= $krbform."\n</p><p>\n".
$intform."\n</p><p>\n".
$locform."\n</p>\n";
$Str .= '<h3>'.&mt('LON-CAPA Domain for Students')."</h3>\n";
$Str .= "<p>\n".&mt('LON-CAPA domain: [_1]',$domform)."\n</p>\n";
$Str .= "<h3>".&mt('Starting and Ending Dates')."</h3>\n";
$Str .= "<p>\n".$date_table."</p>\n";
$Str .= "<h3>".&mt('Full Update')."</h3>\n";
$Str .= '<input type="checkbox" name="fullup" value="yes">'.
' '.&mt('Full update (also print list of users not enrolled anymore)').
"</p>\n";
$Str .= "<h3>".&mt('Student Number')."</h3>\n";
$Str .= "<p>\n".'<input type="checkbox" name="forceid" value="yes">';
$Str .= &mt('Disable ID/Student Number Safeguard and Force Change '.
'of Conflicting IDs (only do if you know what you are doing)').
"\n</p><p>\n";
$Str .= '<input type="button" onClick="javascript:verify(this.form)" '.
'value="Update Class List" />'."<br />\n";
$Str .= &mt('Note: for large courses, this operation may be time '.
'consuming');
$r->print($Str);
return;
}
###############################################################
###############################################################
sub print_upload_manager_form {
my $r=shift;
my $firstLine;
my $datatoken;
if (!$env{'form.datatoken'}) {
$datatoken=&Apache::loncommon::upfile_store($r);
} else {
$datatoken=$env{'form.datatoken'};
&Apache::loncommon::load_tmp_file($r);
}
my @records=&Apache::loncommon::upfile_record_sep();
if($env{'form.noFirstLine'}){
$firstLine=shift(@records);
}
my $total=$#records;
my $distotal=$total+1;
my $today=time;
my $halfyear=$today+15552000;
#
# Restore memorized settings
&Apache::loncommon::restore_course_settings
('enrollment_upload',{ 'username_choice' => 'scalar', # column settings
'names_choice' => 'scalar',
'fname_choice' => 'scalar',
'mname_choice' => 'scalar',
'lname_choice' => 'scalar',
'gen_choice' => 'scalar',
'id_choice' => 'scalar',
'sec_choice' => 'scalar',
'ipwd_choice' => 'scalar',
'email_choice' => 'scalar',
});
#
# Determine kerberos parameters as appropriate
my $defdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
my ($krbdef,$krbdefdom) =
&Apache::loncommon::get_kerberos_defaults($defdom);
#
&print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom);
my $i;
my $keyfields;
if ($total>=0) {
my @field=
(['username',&mt('Username'), $env{'form.username_choice'}],
['names',&mt('Last Name, First Names'),$env{'form.names_choice'}],
['fname',&mt('First Name'), $env{'form.fname_choice'}],
['mname',&mt('Middle Names/Initials'),$env{'form.mname_choice'}],
['lname',&mt('Last Name'), $env{'form.lname_choice'}],
['gen', &mt('Generation'), $env{'form.gen_choice'}],
['id', &mt('ID/Student Number'),$env{'form.id_choice'}],
['sec', &mt('Group/Section'), $env{'form.sec_choice'}],
['ipwd', &mt('Initial Password'),$env{'form.ipwd_choice'}],
['email',&mt('EMail Address'), $env{'form.email_choice'}]);
if ($env{'form.upfile_associate'} eq 'reverse') {
&Apache::loncommon::csv_print_samples($r,\@records);
$i=&Apache::loncommon::csv_print_select_table($r,\@records,
\@field);
foreach (@field) {
$keyfields.=$_->[0].',';
}
chop($keyfields);
} else {
unshift(@field,['none','']);
$i=&Apache::loncommon::csv_samples_select_table($r,\@records,
\@field);
my %sone=&Apache::loncommon::record_sep($records[0]);
$keyfields=join(',',sort(keys(%sone)));
}
}
&print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
}
###############################################################
###############################################################
sub enroll_single_student {
my $r=shift;
# Remove non alphanumeric values from section
$env{'form.csec'}=~s/\W//g;
#
# We do the dates first because the action of making them the defaul
# in the course is entirely separate from the action of enrolling the
# student. Also, a failure in setting the dates as default is not fatal
# to the process of enrolling / modifying a student.
my ($startdate,$enddate) = &get_dates_from_form();
if ($env{'form.makedatesdefault'}) {
$r->print(&make_dates_default($startdate,$enddate));
}
$r->print('<h3>'.&mt('Enrolling Student').'</h3>');
$r->print('<p>'.&mt('Enrolling').' '.$env{'form.cuname'}." \@ ".
$env{'form.lcdomain'}.'</p>');
if (($env{'form.cuname'})&&($env{'form.cuname'}!~/\W/)&&
($env{'form.lcdomain'})&&($env{'form.lcdomain'}!~/\W/)) {
# Deal with home server selection
my $domain=$env{'form.lcdomain'};
my $desiredhost = $env{'form.lcserver'};
if (lc($desiredhost) eq 'default') {
$desiredhost = undef;
} else {
my %home_servers =&Apache::loncommon::get_library_servers($domain);
if (! exists($home_servers{$desiredhost})) {
$r->print('<font color="#ff0000">'.&mt('Error').':</font>'.
&mt('Invalid home server specified'));
return;
}
}
$r->print(" ".&mt('with server')." $desiredhost :") if (defined($desiredhost));
# End of home server selection logic
my $amode='';
my $genpwd='';
if ($env{'form.login'} eq 'krb') {
$amode='krb';
$amode.=$env{'form.krbver'};
$genpwd=$env{'form.krbarg'};
} elsif ($env{'form.login'} eq 'int') {
$amode='internal';
$genpwd=$env{'form.intarg'};
} elsif ($env{'form.login'} eq 'loc') {
$amode='localauth';
$genpwd=$env{'form.locarg'};
if (!$genpwd) { $genpwd=" "; }
}
my $home = &Apache::lonnet::homeserver($env{'form.cuname'},
$env{'form.lcdomain'});
if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
# Clean out any old roles the student has in this class.
&modifystudent($env{'form.lcdomain'},$env{'form.cuname'},
$env{'request.course.id'},$env{'form.csec'},
$desiredhost);
my $login_result = &Apache::lonnet::modifystudent
($env{'form.lcdomain'},$env{'form.cuname'},
$env{'form.cstid'},$amode,$genpwd,
$env{'form.cfirst'},$env{'form.cmiddle'},
$env{'form.clast'},$env{'form.cgen'},
$env{'form.csec'},$enddate,
$startdate,$env{'form.forceid'},
$desiredhost,$env{'form.emailaddress'});
if ($login_result =~ /^ok/) {
$r->print($login_result);
$r->print("<p> ".&mt('If active, the new role will be available when the student next logs in to LON-CAPA.')."</p>");
} else {
$r->print(&mt('unable to enroll').": ".$login_result);
}
} else {
$r->print('<p><font color="#ff0000">'.&mt('ERROR').'</font> ');
if ($amode =~ /^krb/) {
$r->print(&mt('Missing Kerberos domain information.').' ');
} else {
$r->print(&mt('Invalid login mode or password.').' ');
}
$r->print('<b>'.&mt('Unable to enroll').' '.$env{'form.cuname'}.'.</b></p>');
}
} else {
$r->print(&mt('Invalid username or domain'));
}
}
sub setup_date_selectors {
my ($starttime,$endtime,$mode) = @_;
if (! defined($starttime)) {
$starttime = time;
unless ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
if (exists($env{'course.'.$env{'request.course.id'}.
'.default_enrollment_start_date'})) {
$starttime = $env{'course.'.$env{'request.course.id'}.
'.default_enrollment_start_date'};
}
}
}
if (! defined($endtime)) {
$endtime = time+(6*30*24*60*60); # 6 months from now, approx
unless ($mode eq 'createcourse') {
if (exists($env{'course.'.$env{'request.course.id'}.
'.default_enrollment_end_date'})) {
$endtime = $env{'course.'.$env{'request.course.id'}.
'.default_enrollment_end_date'};
}
}
}
my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform',
'startdate',
$starttime);
my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform',
'enddate',
$endtime);
if ($mode eq 'create_enrolldates') {
$startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
'startenroll',
$starttime);
$enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
'endenroll',
$endtime);
}
if ($mode eq 'create_defaultdates') {
$startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
'startaccess',
$starttime);
$enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
'endaccess',
$endtime);
}
return ($startdateform,$enddateform);
}
sub get_dates_from_form {
my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate');
my $enddate = &Apache::lonhtmlcommon::get_date_from_form('enddate');
if ($env{'form.no_end_date'}) {
$enddate = 0;
}
return ($startdate,$enddate);
}
sub date_setting_table {
my ($starttime,$endtime,$mode) = @_;
my ($startform,$endform)=&setup_date_selectors($starttime,$endtime,$mode);
my $dateDefault = '<nobr>'.
'<input type="checkbox" name="makedatesdefault" /> '.
&mt('make these dates the default for future enrollment');
if ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
$dateDefault = ' ';
}
my $perpetual = '<nobr><input type="checkbox" name="no_end_date"';
if (defined($endtime) && $endtime == 0) {
$perpetual .= ' checked';
}
$perpetual.= ' /> '.&mt('no ending date').'</nobr>';
if ($mode eq 'create_enrolldates') {
$perpetual = ' ';
}
my $result = '';
$result .= "<table>\n";
$result .= '<tr><td align="right">'.&mt('Starting Date').'</td>'.
'<td>'.$startform.'</td>'.
'<td>'.$dateDefault.'</td>'."</tr>\n";
$result .= '<tr><td align="right">'.&mt('Ending Date').'</td>'.
'<td>'.$endform.'</td>'.
'<td>'.$perpetual.'</td>'."</tr>\n";
$result .= "</table>\n";
return $result;
}
sub make_dates_default {
my ($startdate,$enddate) = @_;
my $result = '';
my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
my $put_result = &Apache::lonnet::put('environment',
{'default_enrollment_start_date'=>$startdate,
'default_enrollment_end_date' =>$enddate},$dom,$crs);
if ($put_result eq 'ok') {
$result .= "Set default start and end dates for course<br />";
#
# Refresh the course environment
&Apache::lonnet::coursedescription($env{'request.course.id'});
} else {
$result .= &mt('Unable to set default dates for course').":".$put_result.
'<br />';
}
return $result;
}
##
## Single student enrollment routines (some of them)
##
sub get_student_username_domain_form {
my $r = shift;
my $domform = &Apache::loncommon::select_dom_form
($env{'course.'.$env{'request.course.id'}.'.domain'},'cudomain',0);
my %lt=&Apache::lonlocal::texthash(
'eos' => "Enroll One Student",
'usr' => "Username",
'dom' => "Domain",
'been' => "Begin Enrollment",
);
$r->print(<<END);
<input type="hidden" name="action" value="enrollstudent" />
<input type="hidden" name="state" value="gotusername" />
<h3>$lt{'eos'}</h3>
<table>
<tr><th>$lt{'usr'}:</th>
<td><input type="text" name="cuname" size="15" /></td></tr>
<tr><th>$lt{'dom'}:</th>
<td>$domform</td></tr>
<tr><th> </th>
<td>
<input type="submit" name="Begin Enrollment" value="$lt{'been'}" />
</td></tr>
</table>
<script type="text/javascript">
// the if prevents the script error if the browser can not handle this
if ( document.studentform.cuname ) { document.studentform.cuname.focus(); }
</script>
END
return;
}
sub print_enroll_single_student_form {
my $r=shift;
$r->print("<h3>".&mt('Enroll One Student')."</h3>");
#
my $username = $env{'form.cuname'};
my $domain = $env{'form.cudomain'};
$username=~s/\W//gs;
$domain=~s/\W//gs;
my $home = &Apache::lonnet::homeserver($username,$domain);
# $new_user flags whether we are creating a new user or using an old one
my $new_user = 1;
if ($home ne 'no_host') {
$new_user = 0;
}
#
my $user_data_html = '';
my $javascript_validations = '';
if ($new_user) {
my $defdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
# Set up authentication forms
my ($krbdef,$krbdefdom) =
&Apache::loncommon::get_kerberos_defaults($domain);
$javascript_validations=&javascript_validations('auth',$krbdefdom);
my %param = ( formname => 'document.studentform',
kerb_def_dom => $krbdefdom,
kerb_def_auth => $krbdef
);
my $krbform = &Apache::loncommon::authform_kerberos(%param);
my $intform = &Apache::loncommon::authform_internal(%param);
my $locform = &Apache::loncommon::authform_local(%param);
#
# Set up domain selection form
my $homeserver_form = '';
my %servers = &Apache::loncommon::get_library_servers($domain);
$homeserver_form = '<select name="lcserver" size="1">'."\n".
'<option value="default" selected>default</option>'."\n";
while (my ($servername,$serverdescription) = each (%servers)) {
$homeserver_form .= '<option value="'.$servername.'">'.
$serverdescription."</option>\n";
}
$homeserver_form .= "</select>\n";
#
#
my %lt=&Apache::lonlocal::texthash(
'udf' => "User Data for",
'fn' => "First Name",
'mn' => "Middle Name",
'ln' => "Last Name",
'gen' => "Generation",
'hs' => "Home Server",
'pswd' => "Password",
'psam' => "Please select an authentication mechanism",
'mail' => "Email Address"
);
my $authhelp=&Apache::loncommon::help_open_topic('Auth_Options');
$user_data_html = <<END;
<h3>$lt{'udf'} $username\@$domain</h3>
<table>
<tr><th>$lt{'fn'}:</th>
<td><input type="text" name="cfirst" size="15"></td></tr>
<tr><th>$lt{'mn'}:</th>
<td><input type="text" name="cmiddle" size="15"></td></tr>
<tr><th>$lt{'ln'}:</th>
<td><input type="text" name="clast" size="15"></td></tr>
<tr><th>$lt{'gen'}:</th>
<td><input type="text" name="cgen" size="5"> </td></tr>
<tr><th>$lt{'hs'}:</th>
<td>$homeserver_form</td></tr>
<tr><th>$lt{'mail'}:</th>
<td><input type="text" name="emailaddress" size="20" /></td></tr>
</table>
<h3>$lt{'pswd'}</h3>
$lt{'psam'}$authhelp
<table>
<p>
$krbform
<br />
$intform
<br />
$locform
</p>
END
} else {
# User already exists. Do not worry about authentication
my %uenv = &Apache::lonnet::dump('environment',$domain,$username);
$javascript_validations = &javascript_validations('noauth');
my %lt=&Apache::lonlocal::texthash(
'udf' => "User Data for",
'fn' => "First Name",
'mn' => "Middle Name",
'ln' => "Last Name",
'gen' => "Generation",
'mail' => "Email Address",
);
$user_data_html = <<END;
<h3>$lt{'udf'} $username\@$domain</h3>
<input type="hidden" name="lcserver" value="default" />
<table>
<tr><th>$lt{'fn'}:</th>
<td>
<input type="text" name="cfirst" value="$uenv{'firstname'}" size="15" />
</td></tr>
<tr><th>$lt{'mn'}:</th>
<td>
<input type="text" name="cmiddle" value="$uenv{'middlename'}" size="15" />
</td></tr>
<tr><th>$lt{'ln'}:</th>
<td>
<input type="text" name="clast"value="$uenv{'lastname'}" size="15" />
</td></tr>
<tr><th>$lt{'gen'}:</th>
<td>
<input type="text" name="cgen" value="$uenv{'generation'}" size="5" />
</td></tr>
<tr><th>$lt{'mail'}:</th>
<td>
<input type="text" name="emailaddress" value="$uenv{'permanentemail'}" size="20" />
</td></tr>
</table>
END
}
my $date_table = &date_setting_table();
# Print it all out
my %lt=&Apache::lonlocal::texthash(
'cd' => "Course Data",
'gs' => "Group/Section",
'idsn' => "ID/Student Number",
'disn' => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
'eas' => "Enroll as student",
);
$r->print(<<END);
<input type="hidden" name="action" value="enrollstudent" />
<input type="hidden" name="state" value="done" />
<input type="hidden" name="cuname" value="$username" />
<input type="hidden" name="lcdomain" value="$domain" />
<script type="text/javascript" language="Javascript">
function verify(vf) {
var founduname=0;
var foundpwd=0;
var foundname=0;
var foundid=0;
var foundsec=0;
var tw;
if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') &&
(typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
founduname=1;
}
if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
(typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
foundname=1;
}
if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
foundsec=1;
}
if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
foundid=1;
}
if (founduname==0) {
alert('You need to specify at least the username and domain fields');
return;
}
verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
}
$javascript_validations
function clearpwd(vf) {
//nothing else needs clearing
}
</script>
$user_data_html
<h3>$lt{'cd'}</h3>
<p>$lt{'gs'}: <input type="text" name="csec" size="5" />
<p>
$date_table
</p>
<h3>$lt{'idsn'}</h3>
<p>
$lt{'idsn'}: <input type="text" name="cstid" size="10">
</p><p>
<input type="checkbox" name="forceid" value="yes">
$lt{'disn'}
</p><p>
<input type="button" onClick="verify(this.form)" value="$lt{'eas'}">
</p>
END
return;
}
# ========================================================= Menu Phase Two Drop
sub print_drop_menu {
my $r=shift;
$r->print("<h3>".&mt('Drop Students')."</h3>");
my $cid=$env{'request.course.id'};
my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
if (! defined($classlist)) {
$r->print(&mt('There are no students currently enrolled.')."\n");
return;
}
# Print out the available choices
&show_drop_list($r,$classlist,$keylist);
return;
}
# ============================================== view classlist
sub print_html_classlist {
my ($r,$mode) = @_;
if (! exists($env{'form.sortby'})) {
$env{'form.sortby'} = 'username';
}
if ($env{'form.Status'} !~ /^(Any|Expired|Active)$/) {
$env{'form.Status'} = 'Active';
}
my $status_select = &Apache::lonhtmlcommon::StatusOptions
($env{'form.Status'});
my $cid=$env{'request.course.id'};
my $cdom=$env{'course.'.$cid.'.domain'};
my $cnum=$env{'course.'.$cid.'.num'};
#
# List course personnel
my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
#
if (! defined($env{'form.output'}) ||
$env{'form.output'} !~ /^(csv|excel|html)$/ ) {
$env{'form.output'} = 'html';
}
#
$r->print('<br /><table border="2">');
foreach my $role (sort keys %coursepersonnel) {
next if ($role =~ /^\s*$/);
$r->print('<tr><td>'.$role.'</td><td>');
foreach my $user (split(',',$coursepersonnel{$role})) {
my ($puname,$pudom)=split(':',$user);
$r->print(' '.&Apache::loncommon::aboutmewrapper(
&Apache::loncommon::plainname($puname,
$pudom),
$puname,$pudom));
}
$r->print('</td></tr>');
}
$r->print('</table>');
#
# Interface output
$r->print('<input type="hidden" name="action" value="'.
$env{'form.action'}.'" />');
$r->print("<p>\n");
if ($env{'form.action'} ne 'modifystudent') {
my %lt=&Apache::lonlocal::texthash('csv' => "CSV",
'excel' => "Excel",
'html' => 'HTML');
my $output_selector = '<select size="1" name="output" >';
foreach my $outputformat ('html','csv','excel') {
my $option = '<option value="'.$outputformat.'" ';
if ($outputformat eq $env{'form.output'}) {
$option .= 'selected ';
}
$option .='>'.$lt{$outputformat}.'</option>';
$output_selector .= "\n".$option;
}
$output_selector .= '</select>';
$r->print(&mt('Output Format: [_1]',$output_selector).(' 'x3));
}
$r->print(&mt('Student Status: [_1]',$status_select)."\n");
$r->print('<input type="submit" value="'.&mt('Update Display').'" />'.
"\n</p>\n");
#
# Print the classlist
$r->print('<h2>'.&mt('Current Class List').'</h2>');
my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
if (! defined($classlist)) {
$r->print(&mt('There are no students currently enrolled.')."\n");
} else {
# Print out the available choices
if ($env{'form.action'} eq 'modifystudent') {
&show_class_list($r,'view','modify',
$env{'form.Status'},$classlist,$keylist);
} else {
&show_class_list($r,$env{'form.output'},'aboutme',
$env{'form.Status'},$classlist,$keylist);
}
}
}
# =================================================== Show student list to drop
sub show_class_list {
my ($r,$mode,$linkto,$statusmode,$classlist,$keylist)=@_;
my $cid=$env{'request.course.id'};
#
# Variables for excel output
my ($excel_workbook, $excel_sheet, $excel_filename,$row,$format);
#
# Variables for csv output
my ($CSVfile,$CSVfilename);
#
my $sortby = $env{'form.sortby'};
if ($sortby !~ /^(username|domain|section|fullname|id|start|end|type)$/) {
$sortby = 'username';
}
# Print out header
unless ($mode eq 'autoenroll') {
$r->print(<<END);
<input type="hidden" name="state" value="$env{'form.state'}" />
END
}
$r->print(<<END);
<input type="hidden" name="sortby" value="$sortby" />
END
if ($mode eq 'html' || $mode eq 'view' || $mode eq 'autoenroll') {
if ($linkto eq 'aboutme') {
$r->print(&mt('Select a user name to view the users personal page.'));
} elsif ($linkto eq 'modify') {
$r->print(&mt('Select a user name to modify the students information'));
}
my %lt=&Apache::lonlocal::texthash(
'usrn' => "username",
'dom' => "domain",
'sn' => "student name",
'sec' => "section",
'start' => "start date",
'end' => "end date",
'type' => "enroll type/action"
);
unless ($mode eq 'autoenroll') {
$r->print(<<END);
<input type="hidden" name="sname" value="" />
<input type="hidden" name="sdom" value="" />
END
}
$r->print("
<p>
<table border=2>
<tr>
");
if ($mode eq 'autoenroll') {
$r->print("
<th><a href=\"javascript:document.studentform.sortby.value='type';document.studentform.submit();\">$lt{'type'}</a></th>
");
} else {
$r->print("
<th>Count</th>
");
}
$r->print(<<END);
<th>
<a href="javascript:document.studentform.sortby.value='username';document.studentform.submit();">$lt{'usrn'}</a>
</th><th>
<a href="javascript:document.studentform.sortby.value='domain';document.studentform.submit();">$lt{'dom'}</a>
</th><th>
<a href="javascript:document.studentform.sortby.value='id';document.studentform.submit();">ID</a>
</th><th>
<a href="javascript:document.studentform.sortby.value='fullname';document.studentform.submit();">$lt{'sn'}</a>
</th><th>
<a href="javascript:document.studentform.sortby.value='section';document.studentform.submit();">$lt{'sec'}</a>
</th><th>
<a href="javascript:document.studentform.sortby.value='start';document.studentform.submit();">$lt{'start'}</a>
</th><th>
<a href="javascript:document.studentform.sortby.value='end';document.studentform.submit();">$lt{'end'}</a>
</th>
</tr>
END
} elsif ($mode eq 'csv') {
#
# Open a file
$CSVfilename = '/prtspool/'.
$env{'user.name'}.'_'.$env{'user.domain'}.'_'.
time.'_'.rand(1000000000).'.csv';
unless ($CSVfile = Apache::File->new('>/home/httpd'.$CSVfilename)) {
$r->log_error("Couldn't open $CSVfilename for output $!");
$r->print("Problems occured in writing the csv file. ".
"This error has been logged. ".
"Please alert your LON-CAPA administrator.");
$CSVfile = undef;
}
#
# Write headers and data to file
if($statusmode eq 'Expired') {
print $CSVfile '"'.&mt('Students with expired roles').'"'."\n";
}
if ($statusmode eq 'Any') {
print $CSVfile '"'.join('","',map {
&Apache::loncommon::csv_translate(&mt($_))
} ("username","domain","ID","student name",
"section","start date","end date","status")).'"'."\n";
} else {
print $CSVfile '"'.join('","',map {
&Apache::loncommon::csv_translate(&mt($_))
} ("username","domain","ID","student name",
"section","start date","end date")).'"'."\n";
}
} elsif ($mode eq 'excel') {
# Create the excel spreadsheet
($excel_workbook,$excel_filename,$format) =
&Apache::loncommon::create_workbook($r);
return if (! defined($excel_workbook));
$excel_sheet = $excel_workbook->addworksheet('classlist');
#
my $description = 'Class List for '.
$env{'course.'.$env{'request.course.id'}.'.description'};
$excel_sheet->write($row++,0,$description,$format->{'h1'});
#
$excel_sheet->write($row++,0,["username","domain","ID",
"student name","section",
"start date","end date","status"],
$format->{'bold'});
}
#
# Sort the students
my %index;
my $i;
foreach (@$keylist) {
$index{$_} = $i++;
}
my $index = $index{$sortby};
my $second = $index{'username'};
my $third = $index{'domain'};
my @Sorted_Students = sort {
lc($classlist->{$a}->[$index]) cmp lc($classlist->{$b}->[$index])
||
lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
||
lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
} (keys(%$classlist));
my $studentcount = 0;
my $autocount = 0;
my $manualcount = 0;
my $unlockcount = 0;
my $lockcount = 0;
foreach my $student (@Sorted_Students) {
my $sdata = $classlist->{$student};
my $username = $sdata->[$index{'username'}];
my $domain = $sdata->[$index{'domain'}];
my $section = $sdata->[$index{'section'}];
my $name = $sdata->[$index{'fullname'}];
my $id = $sdata->[$index{'id'}];
my $status = $sdata->[$index{'status'}];
my $start = $sdata->[$index{'start'}];
my $end = $sdata->[$index{'end'}];
my $type = $sdata->[$index{'type'}];
next if (($statusmode ne 'Any') && ($status ne $statusmode));
if ($mode eq 'view' || $mode eq 'html' || $mode eq 'autoenroll') {
if (! defined($start) || $start == 0) {
$start = &mt('none');
} else {
$start = &Apache::lonlocal::locallocaltime($start);
}
if (! defined($end) || $end == 0) {
$end = &mt('none');
} else {
$end = &Apache::lonlocal::locallocaltime($end);
}
$r->print("<tr>\n ");
if ($mode eq 'autoenroll') {
my $lockedtype = $sdata->[$index{'lockedtype'}];
$studentcount++;
my $cellentry;
if ($type eq 'auto') {
$cellentry = '<b>'.&mt('auto').'</b> <input type="checkbox" name="chgauto" value="'.$username.':'.$domain.'" /> Change';
$autocount ++;
} else {
$cellentry = '<table border="0" cellspacing="0"><tr><td rowspan="2"><b>'.&mt('manual').'</b></td><td><nobr><input type="checkbox" name="chgmanual" value="'.$username.':'.$domain.'" /> Change</nobr></td></tr><tr><td><nobr>';
$manualcount ++;
if ($lockedtype) {
$cellentry .= '<input type="checkbox" name="unlockchg" value="'.$username.':'.$domain.'" /> '.&mt('Unlock');
$unlockcount ++;
} else {
$cellentry .= '<input type="checkbox" name="lockchg" value="'.$username.':'.$domain.'" /> '.&mt('Lock');
$lockcount ++;
}
$cellentry .= '</nobr></td></tr></table>';
}
$r->print("<td>$cellentry<td>\n ");
} else {
$r->print("<td>".(++$studentcount)."</td><td>\n ");
}
if ($linkto eq 'nothing') {
$r->print($username);
} elsif ($linkto eq 'aboutme') {
$r->print(&Apache::loncommon::aboutmewrapper($username,
$username,
$domain));
} elsif ($linkto eq 'modify') {
$r->print('<a href="'.
"javascript:document.studentform.sname.value='".
$username.
"';document.studentform.sdom.value='".$domain.
"';document.studentform.state.value='selected".
"';document.studentform.submit();".'">'.
$username."</a>\n");
}
$r->print(<<"END");
</td>
<td>$domain</td>
<td>$id</td>
<td>$name</td>
<td>$section</td>
<td>$start</td>
<td>$end</td>
</tr>
END
} elsif ($mode eq 'csv') {
next if (! defined($CSVfile));
# no need to bother with $linkto
if (! defined($start) || $start == 0) {
$start = &mt('none');
} else {
$start = &Apache::lonlocal::locallocaltime($start);
}
if (! defined($end) || $end == 0) {
$end = &mt('none');
} else {
$end = &Apache::lonlocal::locallocaltime($end);
}
my @line = ();
foreach ($username,$domain,$id,$name,$section,$start,$end) {
push @line,&Apache::loncommon::csv_translate($_);
}
if ($statusmode eq 'Any') {
push @line,&Apache::loncommon::csv_translate($status);
}
print $CSVfile '"'.join('","',@line).'"'."\n";
} elsif ($mode eq 'excel') {
$excel_sheet->write($row,0,[$username,$domain,$id,
$name,$section]);
my $col = 5;
foreach my $time ($start,$end) {
if (defined($time) && $time != 0) {
$excel_sheet->write($row,$col++,
&Apache::lonstathelpers::calc_serial($time),
$format->{'date'});
} else {
$excel_sheet->write($row,$col++,'none');
}
}
$excel_sheet->write($row,$col++,$status);
$row++;
}
}
if ($mode eq 'view' || $mode eq 'html' || $mode eq 'autoenroll') {
$r->print('</table><br>');
} elsif ($mode eq 'excel') {
$excel_workbook->close();
$r->print('<p><a href="'.$excel_filename.'">'.
&mt('Your Excel spreadsheet').'</a> '.&mt('is ready for download').'.</p>'."\n");
} elsif ($mode eq 'csv') {
close($CSVfile);
$r->print('<a href="'.$CSVfilename.'">'.
&mt('Your CSV file').'</a> is ready for download.'.
"\n");
$r->rflush();
}
if ($mode eq 'autoenroll') {
return ($studentcount,$autocount,$manualcount,$lockcount,$unlockcount);
}
return;
}
#
# print out form for modification of a single students data
#
sub print_modify_student_form {
my $r = shift();
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['sdom','sname']);
my $sname = $env{'form.sname'};
my $sdom = $env{'form.sdom'};
my $sortby = $env{'form.sortby'};
# determine the students name information
my %info=&Apache::lonnet::get('environment',
['firstname','middlename',
'lastname','generation','id'],
$sdom, $sname);
my ($tmp) = keys(%info);
if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
$r->print('<font color="#ff0000" size="+2">'.&mt('Error').'</font>'.
'<p>'.
&mt('Unable to retrieve environment data for').' '.$sname.
&mt('in domain').' '.$sdom.'</p><p>'.
&mt('Please contact your LON-CAPA administrator regarding this situation.').'</p></body></html>');
return;
}
# determine the students starting and ending times and section
my ($starttime,$endtime,$section) = &get_enrollment_data($sname,$sdom);
if ($starttime =~ /^error/) {
$r->print('<h2>'&mt('Error').'</h2>');
$r->print('<p>'.$starttime.'</p>');
return;
}
#
# Deal with date forms
my $current_date_description = '';
my $textdate = '';
if (! defined($starttime) || $starttime == 0) {
$current_date_description = &mt('Current Starting Date: not set').
'<br />';
} else {
$current_date_description =
&mt('Current Starting Date: [_1]',
&Apache::lonlocal::locallocaltime($starttime)).'<br />';
}
if (! defined($endtime) || $endtime == 0) {
$current_date_description.= &mt('Current Ending Date: not set').
'<br />';
} else {
$current_date_description.=
&mt('Current Ending Date: [_1]',
&Apache::lonlocal::locallocaltime($endtime)).'<br />';
}
my $date_table = &date_setting_table($starttime,$endtime);
#
if (! exists($env{'form.Status'}) ||
$env{'form.Status'} !~ /^(Any|Expired|Active)$/) {
$env{'form.Status'} = 'crap';
}
# Make sure student is enrolled in course
my %lt=&Apache::lonlocal::texthash(
'mef' => "Modify Enrollment for",
'odcc' => "Only domain coordinators can change a users password.",
'sn' => "Student Name",
'fn' => "First",
'mn' => "Middle",
'ln' => "Last",
'gen' => "Generation",
'sid' => "Student ID",
'disn' => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
'sec' => "Section",
'sm' => "Submit Modifications",
);
$r->print(<<END);
<p>
<font size="+1">
$lt{'odcc'}
</font>
</p>
<input type="hidden" name="slogin" value="$sname" />
<input type="hidden" name="sdomain" value="$sdom" />
<input type="hidden" name="action" value="modifystudent" />
<input type="hidden" name="state" value="done" />
<input type="hidden" name="sortby" value="$sortby" />
<input type="hidden" name="Status" value="$env{'form.Status'}" />
<h2>$lt{'mef'} $info{'firstname'} $info{'middlename'}
$info{'lastname'} $info{'generation'}, $sname\@$sdom</h2>
<p>
<b>$lt{'sn'}</b>
<table>
<tr><th>$lt{'fn'}</th><th>$lt{'mn'}</th><th>$lt{'ln'}</th><th>$lt{'gen'}</th></tr>
<tr><td>
<input type="text" name="firstname" value="$info{'firstname'}" /></td><td>
<input type="text" name="middlename" value="$info{'middlename'}" /></td><td>
<input type="text" name="lastname" value="$info{'lastname'}" /></td><td>
<input type="text" name="generation" value="$info{'generation'}" /></td></tr>
</table>
</p><p>
<b>$lt{'sid'}</b>: <input type="text" name="id" value="$info{'id'}" size="12"/>
</p><p>
<input type="checkbox" name="forceid" >
$lt{'disn'}
</p><p>
<b>$lt{'sec'}</b>: <input type="text" name="section" value="$section" size="14"/>
</p>
<p>$current_date_description</p>
<p>$date_table</p>
<input type="submit" value="$lt{'sm'}" />
</body></html>
END
return;
}
#
# modify a single students section
#
sub modify_single_student {
my $r = shift;
#
# Remove non alphanumeric values from the section
$env{'form.section'} =~ s/\W//g;
#
# Do the date defaults first
my ($starttime,$endtime) = &get_dates_from_form();
if ($env{'form.makedatesdefault'}) {
$r->print(&make_dates_default($starttime,$endtime));
}
# Get the 'sortby' and 'Status' variables so the user goes back to their
# previous screen
my $sortby = $env{'form.sortby'};
my $status = $env{'form.Status'};
#
# We always need this information
my $slogin = $env{'form.slogin'};
my $sdom = $env{'form.sdomain'};
#
# Get the old data
my %old=&Apache::lonnet::get('environment',
['firstname','middlename',
'lastname','generation','id'],
$sdom, $slogin);
$old{'section'} = &Apache::lonnet::getsection($sdom,$slogin,
$env{'request.course.id'});
my ($tmp) = keys(%old);
if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
$r->print(&mt('There was an error determining the environment values for')." $slogin \@ $sdom.");
return;
}
undef $tmp;
#
# Get the new data
my $firstname = $env{'form.firstname'};
my $middlename = $env{'form.middlename'};
my $lastname = $env{'form.lastname'};
my $generation = $env{'form.generation'};
my $section = $env{'form.section'};
my $courseid = $env{'request.course.id'};
my $sid = $env{'form.id'};
my $displayable_starttime = localtime($starttime);
my $displayable_endtime = localtime($endtime);
#
# check for forceid override
if ((defined($old{'id'})) && ($old{'id'} ne '') &&
($sid ne $old{'id'}) && (! exists($env{'form.forceid'}))) {
$r->print("<font color=\"ff0000\">".&mt('You changed the students id but did not disable the ID change safeguard. The students id will not be changed.')."</font>");
$sid = $old{'id'};
}
#
# talk to the user about what we are going to do
my %lt=&Apache::lonlocal::texthash(
'mdu' => "Modifying data for user",
'si' => "Student Information",
'fd' => "Field",
'ov' => "Old Value",
'nv' => "New Value",
'fn' => "First name",
'mn' => "Middle name",
'ln' => "Last name",
'gen' => "Generation",
'sec' => "Section",
'ri' => "Role Information",
'st' => "Start Time",
'et' => "End Time",
);
$r->print(<<END);
<h2>$lt{'mdu'} $slogin \@ $sdom </h2>
<h3>$lt{'si'}</h3>
<table rules="rows" border="1" cellpadding="3" >
<tr>
<th> $lt{'fd'} </th>
<th> $lt{'ov'} </th>
<th> $lt{'nv'} </th>
</tr>
<tr>
<td> <b>$lt{'fn'}</b> </td>
<td> $old{'firstname'} </td>
<td> $firstname </td>
</tr><tr>
<td> <b>$lt{'mn'}</b> </td>
<td> $old{'middlename'} </td>
<td> $middlename </td>
</tr><tr>
<td> <b>$lt{'ln'}</b> </td>
<td> $old{'lastname'} </td>
<td> $lastname </td>
</tr><tr>
<td> <b>$lt{'gen'}</b> </td>
<td> $old{'generation'} </td>
<td> $generation </td>
</tr><tr>
<td> <b>ID</b> </td>
<td> $old{'id'} </td>
<td> $sid </td>
</tr><tr>
<td> <b>$lt{'sec'}</b> </td>
<td> $old{'section'} </td>
<td> $section</td>
</tr>
</table>
<h3>$lt{'ri'}</h3>
<table>
<tr><td align="right"><b>$lt{'st'}:</b></td><td> $displayable_starttime </td></tr>
<tr><td align="right"><b>$lt{'et'}:</b></td><td> $displayable_endtime </td></tr>
</table>
<p>
END
#
# Send request(s) to modify data (final undef is for 'desiredhost',
# which is a moot point because the student already has an account.
my $modify_section_results = &modifystudent($sdom,$slogin,
$env{'request.course.id'},
$section,undef);
if ($modify_section_results !~ /^ok/) {
$r->print(&mt('An error occured during the attempt to change the section for this student.')."<br />");
}
my $roleresults = &Apache::lonnet::modifystudent
($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname,
$generation,$section,$endtime,$starttime,$env{'form.forceid'});
if ($roleresults eq 'refused' ) {
$r->print(&mt('Your request to change the role information for this student was refused. You do not appear to have sufficient authority to change student information.'));
} elsif ($roleresults !~ /ok/) {
$r->print(&mt('An error occurred during the attempt to change the role information for this student.')." <br />".
&mt('The error reported was')." ".
$roleresults);
&Apache::lonnet::logthis("londropadd:failed attempt to modify student".
" data for ".$slogin." \@ ".$sdom." by ".
$env{'user.name'}." \@ ".$env{'user.domain'}.
":".$roleresults);
} else { # everything is okay!
$r->print(&mt('Student information updated successfully.')." <br />".
&mt('The student must log out and log in again to see these changes.'));
}
my $Masd=&mt('Modify another students data');
$r->print(<<END);
</p><p>
<input type="hidden" name="action" value="modifystudent" />
<input type="hidden" name="sortby" value="$sortby" />
<input type="hidden" name="Status" value="$status" />
<a href="javascript:document.studentform.submit();">$Masd</a>
</body></html>
END
return;
}
sub get_enrollment_data {
my ($sname,$sdomain) = @_;
my $courseid = $env{'request.course.id'};
$courseid =~ s:_:/:g;
my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname);
my ($tmp) = keys(%roles);
# Bail out if we were unable to get the students roles
return ('error'.$tmp) if ($tmp =~ /^(con_lost|error|no_such_host)/i);
# Go through the roles looking for enrollment in this course
my ($end,$start) = (undef,undef);
my $section = '';
my $count = scalar(keys(%roles));
while (my ($course,$role) = each(%roles)) {
if ($course=~ /^\/$courseid\/*\s*(\w+)*_st$/ ) {
#
# Get active role
$section=$1;
(undef,$end,$start)=split(/\_/,$role);
my $now=time;
my $notactive=0;
if ($start) {
if ($now<$start) { $notactive=1; }
}
if ($end) {
if ($now>$end) { $notactive=1; }
}
unless ($notactive) { return ($start,$end,$section); }
}
}
return ($start,$end,$section);
}
#################################################
#################################################
=pod
=item show_drop_list
Display a list of students to drop
Inputs:
=over 4
=item $r, Apache request
=item $classlist, hash pointer returned from loncoursedata::get_classlist();
=item $keylist, array pointer returned from loncoursedata::get_classlist()
which describes the order elements are stored in the %$classlist values.
=item $nosort, if true, sorting links are omitted.
=back
=cut
#################################################
#################################################
sub show_drop_list {
my ($r,$classlist,$keylist,$nosort)=@_;
my $cid=$env{'request.course.id'};
if (! exists($env{'form.sortby'})) {
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['sortby']);
}
my $sortby = $env{'form.sortby'};
if ($sortby !~ /^(username|domain|section|fullname|id|start|end)$/) {
$sortby = 'username';
}
#
my $action = "drop";
$r->print(<<END);
<input type="hidden" name="sortby" value="$sortby" />
<input type="hidden" name="action" value="$action" />
<input type="hidden" name="state" value="done" />
<script>
function checkAll(field) {
for (i = 0; i < field.length; i++)
field[i].checked = true ;
}
function uncheckAll(field) {
for (i = 0; i < field.length; i++)
field[i].checked = false ;
}
</script>
<p>
<input type="hidden" name="phase" value="four">
END
my %lt=&Apache::lonlocal::texthash('usrn' => "username",
'dom' => "domain",
'sn' => "student name",
'sec' => "section",
'start' => "start date",
'end' => "end date",
);
if ($nosort) {
$r->print(<<END);
<table border=2>
<tr>
<th> </th>
<th>$lt{'usrn'}</th>
<th>$lt{'dom'}</th>
<th>ID</th>
<th>$lt{'sn'}</th>
<th>$lt{'sec'}</th>
<th>$lt{'start'}</th>
<th>$lt{'end'}</th>
</tr>
END
} else {
$r->print(<<END);
<table border=2>
<tr><th> </th>
<th>
<a href="/adm/dropadd?action=$action&sortby=username">$lt{'usrn'}</a>
</th><th>
<a href="/adm/dropadd?action=$action&sortby=domain">$lt{'dom'}</a>
</th><th>
<a href="/adm/dropadd?action=$action&sortby=id">ID</a>
</th><th>
<a href="/adm/dropadd?action=$action&sortby=fullname">$lt{'sn'}</a>
</th><th>
<a href="/adm/dropadd?action=$action&sortby=section">$lt{'sec'}</a>
</th><th>
<a href="/adm/dropadd?action=$action&sortby=start">$lt{'start'}</a>
</th><th>
<a href="/adm/dropadd?action=$action&sortby=end">$lt{'end'}</a>
</th>
</tr>
END
}
#
# Sort the students
my %index;
my $i;
foreach (@$keylist) {
$index{$_} = $i++;
}
my $index = $index{$sortby};
my $second = $index{'username'};
my $third = $index{'domain'};
my @Sorted_Students = sort {
lc($classlist->{$a}->[$index]) cmp lc($classlist->{$b}->[$index])
||
lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
||
lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
} (keys(%$classlist));
foreach my $student (@Sorted_Students) {
my $error;
my $sdata = $classlist->{$student};
my $username = $sdata->[$index{'username'}];
my $domain = $sdata->[$index{'domain'}];
my $section = $sdata->[$index{'section'}];
my $name = $sdata->[$index{'fullname'}];
my $id = $sdata->[$index{'id'}];
my $start = $sdata->[$index{'start'}];
my $end = $sdata->[$index{'end'}];
if (! defined($start) || $start == 0) {
$start = &mt('none');
} else {
$start = &Apache::lonlocal::locallocaltime($start);
}
if (! defined($end) || $end == 0) {
$end = &mt('none');
} else {
$end = &Apache::lonlocal::locallocaltime($end);
}
my $status = $sdata->[$index{'status'}];
next if ($status ne 'Active');
#
$r->print(<<"END");
<tr>
<td><input type="checkbox" name="droplist" value="$student"></td>
<td>$username</td>
<td>$domain</td>
<td>$id</td>
<td>$name</td>
<td>$section</td>
<td>$start</td>
<td>$end</td>
</tr>
END
}
$r->print('</table><br>');
%lt=&Apache::lonlocal::texthash(
'dp' => "Drop Students",
'ca' => "check all",
'ua' => "uncheck all",
);
$r->print(<<"END");
</p><p>
<input type="button" value="$lt{'ca'}" onclick="javascript:checkAll(document.studentform.droplist)">
<input type="button" value="$lt{'ua'}" onclick="javascript:uncheckAll(document.studentform.droplist)">
<p><input type=submit value="$lt{'dp'}"></p>
END
return;
}
#
# Print out the initial form to get the courselist file
#
sub print_first_courselist_upload_form {
my $r=shift;
my $str;
$str = '<input type="hidden" name="phase" value="two">';
$str .= '<input type="hidden" name="action" value="upload" />';
$str .= '<input type="hidden" name="state" value="got_file" />';
$str .= "<h3>".&mt('Upload a class list')."</h3>\n";
$str .= &Apache::loncommon::upfile_select_html();
$str .= "<p>\n";
$str .= '<input type="submit" name="fileupload" value="'.
&mt('Upload class list').'">'."\n";
$str .= '<input type="checkbox" name="noFirstLine" /> '.
&mt('Ignore First Line')."</p>\n";
$str .= &Apache::loncommon::help_open_topic("Course_Create_Class_List",
&mt("How do I create a class list from a spreadsheet")).
"<br />\n";
$str .= &Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
&mt("How do I create a CSV file from a spreadsheet")).
"<br />\n";
$str .= "</body>\n</html>\n";
$r->print($str);
return;
}
# ================================================= Drop/Add from uploaded file
sub upfile_drop_add {
my $r=shift;
&Apache::loncommon::load_tmp_file($r);
my @studentdata=&Apache::loncommon::upfile_record_sep();
if($env{'form.noFirstLine'}){shift(@studentdata);}
my @keyfields = split(/\,/,$env{'form.keyfields'});
my $cid = $env{'request.course.id'};
my %fields=();
for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
if ($env{'form.upfile_associate'} eq 'reverse') {
if ($env{'form.f'.$i} ne 'none') {
$fields{$keyfields[$i]}=$env{'form.f'.$i};
}
} else {
$fields{$env{'form.f'.$i}}=$keyfields[$i];
}
}
#
# Store the field choices away
foreach my $field (qw/username names
fname mname lname gen id sec ipwd email/) {
$env{'form.'.$field.'_choice'}=$fields{$field};
}
&Apache::loncommon::store_course_settings('enrollment_upload',
{ 'username_choice' => 'scalar',
'names_choice' => 'scalar',
'fname_choice' => 'scalar',
'mname_choice' => 'scalar',
'lname_choice' => 'scalar',
'gen_choice' => 'scalar',
'id_choice' => 'scalar',
'sec_choice' => 'scalar',
'ipwd_choice' => 'scalar',
'email_choice' => 'scalar' });
#
my ($startdate,$enddate) = &get_dates_from_form();
if ($env{'form.makedatesdefault'}) {
$r->print(&make_dates_default($startdate,$enddate));
}
# Determine domain and desired host (home server)
my $domain=$env{'form.lcdomain'};
my $desiredhost = $env{'form.lcserver'};
if (lc($desiredhost) eq 'default') {
$desiredhost = undef;
} else {
my %home_servers = &Apache::loncommon::get_library_servers($domain);
if (! exists($home_servers{$desiredhost})) {
$r->print('<font color="#ff0000">'.&mt('Error').'</font>'.
&mt('Invalid home server specified'));
$r->print("</body>\n</html>\n");
return;
}
}
# Determine authentication mechanism
my $amode = '';
my $genpwd = '';
if ($env{'form.login'} eq 'krb') {
$amode='krb';
$amode.=$env{'form.krbver'};
$genpwd=$env{'form.krbarg'};
} elsif ($env{'form.login'} eq 'int') {
$amode='internal';
if ((defined($env{'form.intarg'})) && ($env{'form.intarg'})) {
$genpwd=$env{'form.intarg'};
}
} elsif ($env{'form.login'} eq 'loc') {
$amode='localauth';
if ((defined($env{'form.locarg'})) && ($env{'form.locarg'})) {
$genpwd=$env{'form.locarg'};
}
}
if ($amode =~ /^krb/) {
if (! defined($genpwd) || $genpwd eq '') {
$r->print('<font color="red" size="+1">'.
&mt('Unable to enroll students').'</font> '.
&mt('No Kerberos domain was specified.').'</p>');
$amode = ''; # This causes the loop below to be skipped
}
}
unless (($domain=~/\W/) || ($amode eq '')) {
#######################################
## Enroll Students ##
#######################################
$r->print('<h3>'.&mt('Enrolling Students')."</h3>\n<p>\n");
my $count=0;
my $flushc=0;
my %student=();
# Get new classlist
foreach (@studentdata) {
my %entries=&Apache::loncommon::record_sep($_);
# Determine student name
unless (($entries{$fields{'username'}} eq '') ||
(!defined($entries{$fields{'username'}}))) {
my ($fname, $mname, $lname,$gen) = ('','','','');
if (defined($fields{'names'})) {
($lname,$fname,$mname)=($entries{$fields{'names'}}=~
/([^\,]+)\,\s*(\w+)\s*(.*)$/);
} else {
if (defined($fields{'fname'})) {
$fname=$entries{$fields{'fname'}};
}
if (defined($fields{'mname'})) {
$mname=$entries{$fields{'mname'}};
}
if (defined($fields{'lname'})) {
$lname=$entries{$fields{'lname'}};
}
if (defined($fields{'gen'})) {
$gen=$entries{$fields{'gen'}};
}
}
if ($entries{$fields{'username'}}=~/\W/) {
$r->print('<br />'.
&mt('<b>[_1]</b>: Unacceptable username for user [_2] [_3] [_4] [_5]',
$entries{$fields{'username'}},$fname,$mname,$lname,$gen).
'</b>');
} else {
# determine section number
my $sec='';
my $username=$entries{$fields{'username'}};
if (defined($fields{'sec'})) {
if (defined($entries{$fields{'sec'}})) {
$sec=$entries{$fields{'sec'}};
}
}
# remove non alphanumeric values from section
$sec =~ s/\W//g;
# determine student id number
my $id='';
if (defined($fields{'id'})) {
if (defined($entries{$fields{'id'}})) {
$id=$entries{$fields{'id'}};
}
$id=~tr/A-Z/a-z/;
}
# determine email address
my $email='';
if (defined($fields{'email'})) {
if (defined($entries{$fields{'email'}})) {
$email=$entries{$fields{'email'}};
unless ($email=~/^[^\@]+\@[^\@]+$/) { $email=''; }
}
}
# determine student password
my $password='';
if ($genpwd) {
$password=$genpwd;
} else {
if (defined($fields{'ipwd'})) {
if ($entries{$fields{'ipwd'}}) {
$password=$entries{$fields{'ipwd'}};
}
}
}
# Clean up whitespace
foreach (\$domain,\$username,\$id,\$fname,\$mname,
\$lname,\$gen,\$sec) {
$$_ =~ s/(\s+$|^\s+)//g;
}
if ($password || $env{'form.login'} eq 'loc') {
&modifystudent($domain,$username,$cid,$sec,
$desiredhost);
my $reply=&Apache::lonnet::modifystudent
($domain,$username,$id,$amode,$password,
$fname,$mname,$lname,$gen,$sec,$enddate,
$startdate,$env{'form.forceid'},$desiredhost,
$email);
if ($reply ne 'ok') {
$reply =~ s/^error://;
$r->print('<br />'.
&mt('<b>[_1]</b>: Unable to enroll: [_2]',$username,$reply));
} else {
$count++; $flushc++;
$student{$username}=1;
$r->print('. ');
if ($flushc>15) {
$r->rflush;
$flushc=0;
}
}
} else {
$r->print('<br />'.
&mt('<b>[_1]</b>: Unable to enroll. No password specified.',$username)
);
}
}
}
} # end of foreach (@studentdata)
$r->print("</p>\n<p>\n".&mt('Processed [_1] student(s).',$count).
"</p>\n");
$r->print("<p>\n".
&mt('If active, the new role will be available when the '.
'students next log in to LON-CAPA.')."</p>\n");
#####################################
# Drop students #
#####################################
if ($env{'form.fullup'} eq 'yes') {
$r->print('<h3>'.&mt('Dropping Students')."</h3>\n");
# Get current classlist
my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
if (! defined($classlist)) {
$r->print(&mt('There are no students currently enrolled.').
"\n");
} else {
# Remove the students we just added from the list of students.
foreach (@studentdata) {
my %entries=&Apache::loncommon::record_sep($_);
unless (($entries{$fields{'username'}} eq '') ||
(!defined($entries{$fields{'username'}}))) {
delete($classlist->{$entries{$fields{'username'}}.
':'.$domain});
}
}
# Print out list of dropped students.
&show_drop_list($r,$classlist,$keylist,'nosort');
}
}
} # end of unless
}
# ================================================================== Phase four
sub drop_student_list {
my $r=shift;
my $count=0;
my @droplist = &Apache::loncommon::get_env_multiple('form.droplist');
foreach (@droplist) {
my ($uname,$udom)=split(/\:/,$_);
# drop student
my $result = &modifystudent($udom,$uname,$env{'request.course.id'});
if ($result eq 'ok' || $result eq 'ok:') {
$r->print(&mt('Dropped [_1]',$uname.'@'.$udom).'<br>');
$count++;
} else {
$r->print(
&mt('Error dropping [_1]:[_2]',$uname.'@'.$udom,$result).
'<br />');
}
}
$r->print('<p><b>'.&mt('Dropped [_1] student(s).',$count).'</b></p>');
$r->print('<p>'.&mt('Re-enrollment will re-activate data.')) if ($count);
}
###################################################################
###################################################################
=pod
=item &handler
The typical handler you see in all these modules. Takes $r, the
http request, as an argument.
The response to the request is governed by two form variables
form.action form.state response
---------------------------------------------------
undefined undefined print main menu
upload undefined print courselist upload menu
upload got_file deal with uploaded file,
print the upload managing menu
upload enrolling enroll students based on upload
drop undefined print the classlist ready to drop
drop done drop the selected students
enrollstudent undefined print student username domain form
enrollstudent gotusername print single student enroll menu
enrollstudent enrolling enroll student
classlist undefined print html classlist
classlist csv print csv classlist
modifystudent undefined print classlist to select student to modify
modifystudent selected print modify student menu
modifystudent done make modifications to student record
=cut
###################################################################
###################################################################
sub handler {
my $r=shift;
if ($r->header_only) {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK;
}
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['action','state']);
&Apache::lonhtmlcommon::clear_breadcrumbs();
&Apache::lonhtmlcommon::add_breadcrumb
({href=>"/adm/dropadd",
text=>"Enrollment Manager",
faq=>9,bug=>'Instructor Interface',});
# Needs to be in a course
if (! ($env{'request.course.fn'})) {
# Not in a course
$env{'user.error.msg'}=
"/adm/dropadd:cst:0:0:Cannot drop or add students";
return HTTP_NOT_ACCEPTABLE;
}
#
my $view_permission =
&Apache::lonnet::allowed('vcl',$env{'request.course.id'});
my $enrl_permission =
&Apache::lonnet::allowed('cst',$env{'request.course.id'});
if (! $view_permission && ! $enrl_permission) {
$env{'user.error.msg'}=
"/adm/dropadd:cst:0:0:Cannot drop or add students";
return HTTP_NOT_ACCEPTABLE;
}
#
# Only output the header information if they did not request csv format
#
# Start page
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
$r->print(&header());
#
# Main switch on form.action and form.state, as appropriate
if (! exists($env{'form.action'})) {
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Enrollment Manager'));
&print_main_menu($r,$enrl_permission,$view_permission);
} elsif ($env{'form.action'} eq 'upload' && $enrl_permission) {
&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/dropadd?action=upload&state=',
text=>"Upload Classlist"});
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Upload Classlist','Course_Create_Class_List'));
if (! exists($env{'form.state'})) {
&print_first_courselist_upload_form($r);
} elsif ($env{'form.state'} eq 'got_file') {
&print_upload_manager_form($r);
} elsif ($env{'form.state'} eq 'enrolling') {
if ($env{'form.datatoken'}) {
&upfile_drop_add($r);
} else {
# Hmmm, this is an error
}
} else {
&print_first_courselist_upload_form($r);
}
} elsif ($env{'form.action'} eq 'drop' && $enrl_permission) {
&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/dropadd?action=drop',
text=>"Drop Students"});
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Drop Students','Course_Drop_Student'));
if (! exists($env{'form.state'})) {
&print_drop_menu($r);
} elsif ($env{'form.state'} eq 'done') {
&drop_student_list($r);
} else {
&print_drop_menu($r);
}
} elsif ($env{'form.action'} eq 'enrollstudent' && $enrl_permission) {
&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/dropadd?action=enrollstudent',
text=>"Enroll Student"});
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Enroll Student','Course_Add_Student'));
if (! exists($env{'form.state'})) {
&get_student_username_domain_form($r);
} elsif ($env{'form.state'} eq 'gotusername') {
&print_enroll_single_student_form($r);
} elsif ($env{'form.state'} eq 'enrolling') {
&enroll_single_student($r);
} else {
&get_student_username_domain_form($r);
}
} elsif ($env{'form.action'} eq 'classlist' && $view_permission) {
&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/dropadd?action=classlist',
text=>"View Classlist"});
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'View Classlist','Course_View_Class_List'));
if (! exists($env{'form.state'})) {
&print_html_classlist($r,undef);
} elsif ($env{'form.state'} eq 'csv') {
&print_html_classlist($r,'csv');
} elsif ($env{'form.state'} eq 'excel') {
&print_html_classlist($r,'excel');
} else {
&print_html_classlist($r,undef);
}
} elsif ($env{'form.action'} eq 'modifystudent' && $enrl_permission) {
&Apache::lonhtmlcommon::add_breadcrumb
({href=>'/adm/dropadd?action=modifystudent',
text=>"Modify Student Data"});
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Modify Student Data','Course_Modify_Student_Data'));
if (! exists($env{'form.state'})) {
&print_html_classlist($r);
} elsif ($env{'form.state'} eq 'selected') {
&print_modify_student_form($r);
} elsif ($env{'form.state'} eq 'done') {
&modify_single_student($r);
} else {
&print_html_classlist($r);
}
} else {
# We should not end up here, but I guess it is possible
&Apache::lonnet::logthis("Undetermined state in londropadd.pm. ".
"form.action = ".$env{'form.action'}.
"Someone should fix this.");
$r->print(&Apache::lonhtmlcommon::breadcrumbs
(undef,'Enrollment Manager'));
&print_main_menu($r,$enrl_permission,$view_permission);
}
#
# Finish up
$r->print('</form></body></html>');
return OK;
}
###################################################################
###################################################################
1;
__END__
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