File:
[LON-CAPA] /
loncom /
auth /
lonroles.pm
Revision
1.343:
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Tue Feb 4 01:27:04 2020 UTC (4 years, 3 months ago) by
raeburn
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MAIN
CVS tags:
HEAD
- Suggest use of "Check for changes" link as way to update roles list, when
an unprivileged user has no roles listed, and it is more than 10 minutes
since last check (or log-in).
# The LearningOnline Network with CAPA
# User Roles Screen
#
# $Id: lonroles.pm,v 1.343 2020/02/04 01:27:04 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/
#
###
=pod
=head1 NAME
Apache::lonroles - User Roles Screen
=head1 SYNOPSIS
Invoked by /etc/httpd/conf/srm.conf:
<Location /adm/roles>
PerlAccessHandler Apache::lonacc
SetHandler perl-script
PerlHandler Apache::lonroles
ErrorDocument 403 /adm/login
ErrorDocument 500 /adm/errorhandler
</Location>
=head1 OVERVIEW
=head2 Choosing Roles
C<lonroles> is a handler that allows a user to switch roles in
mid-session. LON-CAPA attempts to work with "No Role Specified", the
default role that a user has before selecting a role, as widely as
possible, but certain handlers for example need specification which
course they should act on, etc. Both in this scenario, and when the
handler determines via C<lonnet>'s C<&allowed> function that a certain
action is not allowed, C<lonroles> is used as error handler. This
allows the user to select another role which may have permission to do
what they were trying to do.
=begin latex
\begin{figure}
\begin{center}
\includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
\caption{\label{Sample_Roles_Screen}Sample Roles Screen}
\end{center}
\end{figure}
=end latex
=head2 Role Initialization
The privileges for a user are established at login time and stored in the session environment. As a consequence, a new role does not become active till the next login. Handlers are able to query for privileges using C<lonnet>'s C<&allowed> function. When a user first logs in, their role is the "common" role, which means that they have the sum of all of their privileges. During a session it might become necessary to choose a particular role, which as a consequence also limits the user to only the privileges in that particular role.
=head1 INTRODUCTION
This module enables a user to select what role he wishes to
operate under (instructor, student, teaching assistant, course
coordinator, etc). These roles are pre-established by the actions
of upper-level users.
This is part of the LearningOnline Network with CAPA project
described at http://www.lon-capa.org.
=head1 HANDLER SUBROUTINE
This routine is called by Apache and mod_perl.
=over 4
=item *
Roles Initialization (yes/no)
=item *
Get Error Message from Environment
=item *
Who is this?
=item *
Generate Page Output
=item *
Choice or no choice
=item *
Table
=item *
Privileges
=back
=cut
package Apache::lonroles;
use strict;
use Apache::lonnet;
use Apache::lonuserstate();
use Apache::Constants qw(:common REDIRECT);
use Apache::File();
use Apache::lonmenu;
use Apache::loncommon;
use Apache::lonhtmlcommon;
use Apache::lonannounce;
use Apache::lonlocal;
use Apache::lonpageflip();
use Apache::lonnavdisplay();
use Apache::loncoursequeueadmin;
use Apache::longroup;
use Apache::lonrss;
use Apache::lonplacementtest;
use GDBM_File;
use LONCAPA qw(:DEFAULT :match);
use HTML::Entities;
my $registered_cleanup;
my $rosterupdates;
sub redirect_user {
my ($r,$title,$url,$msg) = @_;
$msg = $title if (! defined($msg));
&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
my $start_page;
if ($env{'request.lti.login'}) {
$start_page = &Apache::loncommon::start_page(undef,undef,
{'redirect' => [0,$url],}).$msg;
} else {
# Breadcrumbs
my $brcrum = [{'href' => $url,
'text' => 'Switching Role'},];
$start_page = &Apache::loncommon::start_page('Switching Role',undef,
{'redirect' => [1,$url],
'bread_crumbs' => $brcrum,}).
"\n<p>$msg</p>";
}
my $end_page = &Apache::loncommon::end_page();
# Note to style police:
# This must only replace the spaces, nothing else, or it bombs elsewhere.
$url=~s/ /\%20/g;
$r->print(<<ENDREDIR);
$start_page
$end_page
ENDREDIR
return;
}
sub error_page {
my ($r,$error,$dest)=@_;
&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
return OK if $r->header_only;
# Breadcrumbs
my $brcrum = [{'href' => $dest,
'text' => 'Problems during Course Initialization'},];
$r->print(&Apache::loncommon::start_page('Problems during Course Initialization',
undef,
{'bread_crumbs' => $brcrum,})
);
$r->print(
'<script type="text/javascript">'.
'// <![CDATA['.
&Apache::lonmenu::rawconfig().
'// ]]>'.
'</script>'.
'<p class="LC_error">'.&mt('The following problems occurred:').
'<br />'.
$error.
'</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'
);
$r->print(&Apache::loncommon::end_page());
}
sub handler {
my $r = shift;
# Check for critical messages and redirect if present.
my ($redirect,$url) = &Apache::loncommon::critical_redirect(300,'roles');
if ($redirect) {
&Apache::loncommon::content_type($r,'text/html');
$r->header_out(Location => $url);
return REDIRECT;
}
my $now=time;
my $then=$env{'user.login.time'};
my $refresh=$env{'user.refresh.time'};
my $update=$env{'user.update.time'};
if (!$refresh) {
$refresh = $then;
}
if (!$update) {
$update = $then;
}
$registered_cleanup=0;
@{$rosterupdates}=();
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
# -------------------------------------------------- Check if setting hot list
my $hotlist;
if ($env{'form.action'} eq 'verify_and_change_rolespref') {
$hotlist = &Apache::lonpreferences::verify_and_change_rolespref($r);
}
# -------------------------------------------------------- Check for new roles
my $updateresult;
if ($env{'form.state'} eq 'doupdate') {
my $show_course=&Apache::loncommon::show_course();
my $checkingtxt;
if ($show_course) {
$checkingtxt = &mt('Checking for new courses ...');
} else {
$checkingtxt = &mt('Checking for new roles ...');
}
$updateresult = $checkingtxt;
$updateresult .= &update_session_roles();
&Apache::lonnet::appenv({'user.update.time' => $now});
$update = $now;
&Apache::loncoursequeueadmin::reqauthor_check();
}
# -------------------------------------------------- Check for author requests
my $reqauthor;
if ($env{'form.state'} eq 'requestauthor') {
$reqauthor = &Apache::loncoursequeueadmin::process_reqauthor(\$update);
}
my $envkey;
my %dcroles = ();
my %helpdeskroles = ();
my ($numdc,$numhelpdesk,$numadhoc) =
&check_for_adhoc(\%dcroles,\%helpdeskroles,$update,$then);
my $loncaparev = $r->dir_config('lonVersion');
# ================================================================== Roles Init
if ($env{'form.selectrole'}) {
if (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq '')) {
if ($env{'form.ltitarget'} eq 'iframe') {
&Apache::lonnet::appenv({'request.lti.target' => 'iframe'});
delete($env{'form.ltitarget'});
}
}
my $locknum=&Apache::lonnet::get_locks();
if ($locknum) { return 409; }
my $custom_adhoc;
if ($env{'form.newrole'}) {
$env{'form.'.$env{'form.newrole'}}=1;
# Check if this is a Domain Helpdesk or Domain Helpdesk Assistant role trying to enter a course
if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/\w+\./\1/$match_courseid$}) {
if ($helpdeskroles{$1}) {
$custom_adhoc = 1;
}
}
}
if ($env{'request.course.id'}) {
# Check if user is CC trying to select a course role
if ($env{'form.switchrole'}) {
my $switch_is_active;
if (defined($env{'user.role.'.$env{'form.switchrole'}})) {
my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
if (!$end || $end > $now) {
if (!$start || $start < $update) {
$switch_is_active = 1;
}
}
}
unless ($switch_is_active) {
&adhoc_course_role($refresh,$update,$then);
}
}
my %temp=('logout_'.$env{'request.course.id'} => time);
&Apache::lonnet::put('email_status',\%temp);
&Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
}
&Apache::lonnet::appenv({"request.course.id" => '',
"request.course.fn" => '',
"request.course.uri" => '',
"request.course.sec" => '',
"request.course.tied" => '',
"request.course.timechecked" => '',
"request.role" => 'cm',
"request.role.adv" => $env{'user.adv'},
"request.role.domain" => $env{'user.domain'}});
# Check if Domain Helpdesk role trying to enter a course needs privs to be created
if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)(?:/(\w+)|$)}) {
my $cdom = $1;
my $rolename = $2;
my $cnum = $3;
my $sec = $4;
if ($custom_adhoc) {
my ($possroles,$description) = &Apache::lonnet::get_my_adhocroles($cdom.'_'.$cnum,1);
if (ref($possroles) eq 'ARRAY') {
if (grep(/^\Q$rolename\E$/,@{$possroles})) {
if (&Apache::lonnet::check_adhoc_privs($cdom,$cnum,$update,$refresh,$now,
"cr/$cdom/$cdom".'-domainconfig/'.$rolename,undef,$sec)) {
&Apache::lonnet::appenv({"environment.internal.$cdom.$cnum.cr/$cdom/$cdom".'-domainconfig/'."$rolename.adhoc" => time});
}
}
}
}
} elsif (($numdc > 0) || ($numhelpdesk > 0)) {
# Check if user is a DC trying to enter a course or author space and needs privs to be created
# Check if user is a DH or DA trying to enter a course and needs privs to be created
foreach my $envkey (keys(%env)) {
# Is this an ad-hoc Coordinator role?
if ($numdc) {
if (my ($ccrole,$domain,$coursenum) =
($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) {
if ($dcroles{$domain}) {
if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,
$update,$refresh,$now,$ccrole)) {
&Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.$ccrole.adhoc" => time});
}
}
last;
}
# Is this an ad-hoc CA-role?
if (my ($domain,$user) =
($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
delete($env{$envkey});
$env{'form.au./'.$domain.'/'} = 1;
my ($server_status,$home) = &check_author_homeserver($user,$domain);
if ($server_status eq 'switchserver') {
my $trolecode = 'au./'.$domain.'/';
my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
$r->internal_redirect($switchserver);
return OK;
}
last;
}
if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
if (((($castart) && ($castart < $now)) || !$castart) &&
((!$caend) || (($caend) && ($caend > $now)))) {
my ($server_status,$home) = &check_author_homeserver($user,$domain);
if ($server_status eq 'switchserver') {
my $trolecode = 'ca./'.$domain.'/'.$user;
my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
$r->internal_redirect($switchserver);
return OK;
}
last;
}
}
# Check if author blocked ca-access
my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
if ($blocked{'domcoord.author'} eq 'blocked') {
delete($env{$envkey});
$env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
last;
}
if ($dcroles{$domain}) {
my ($server_status,$home) = &check_author_homeserver($user,$domain);
if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
&Apache::lonnet::check_adhoc_privs($domain,$user,$update,
$refresh,$now,'ca');
if ($server_status eq 'switchserver') {
my $trolecode = 'ca./'.$domain.'/'.$user;
my $switchserver = '/adm/switchserver?'
.'otherserver='.$home.'&role='.$trolecode;
$r->internal_redirect($switchserver);
return OK;
}
} else {
delete($env{$envkey});
}
} else {
delete($env{$envkey});
}
last;
}
}
if ($numhelpdesk) {
# Is this an ad hoc custom role in a course/community?
if (my ($domain,$rolename,$coursenum,$sec) = ($envkey =~ m{^form\.cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)(?:/(\w+)|$)})) {
if ($helpdeskroles{$domain}) {
my ($possroles,$description) = &Apache::lonnet::get_my_adhocroles($domain.'_'.$coursenum,1);
if (ref($possroles) eq 'ARRAY') {
if (grep(/^\Q$rolename\E$/,@{$possroles})) {
if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,$update,$refresh,$now,
"cr/$domain/$domain".'-domainconfig/'.$rolename,
undef,$sec)) {
&Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.cr/$domain/$domain".
'-domainconfig/'."$rolename.adhoc" => time});
}
} else {
delete($env{$envkey});
}
} else {
delete($env{$envkey});
}
} else {
delete($env{$envkey});
}
last;
}
}
}
}
foreach $envkey (keys(%env)) {
next if ($envkey!~/^user\.role\./);
my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
&Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
\$trolecode,\$tstatus,\$tstart,\$tend);
if ($env{'form.'.$trolecode}) {
if ($tstatus eq 'is') {
$where=~s/^\///;
my ($cdom,$cnum,$csec)=split(/\//,$where);
if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
my $home = $env{'course.'.$cdom.'_'.$cnum.'.home'};
my @ids = &Apache::lonnet::current_machine_ids();
unless ($loncaparev eq '' && $home && grep(/^\Q$home\E$/,@ids)) {
my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
if ($curr_reqd_hash{'internal.releaserequired'} ne '') {
my ($switchserver,$switchwarning) =
&Apache::loncommon::check_release_required($loncaparev,$cdom.'_'.$cnum,$trolecode,
$curr_reqd_hash{'internal.releaserequired'});
if ($switchwarning ne '' || $switchserver ne '') {
&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
$r->print(&Apache::loncommon::check_release_result($switchwarning,$switchserver));
return OK;
}
}
}
}
# check for course groups
my %coursegroups = &Apache::lonnet::get_active_groups(
$env{'user.domain'},$env{'user.name'},$cdom, $cnum);
my $cgrps = join(':',keys(%coursegroups));
# store role if recent_role list being kept
if ($env{'environment.recentroles'}) {
my %frozen_roles =
&Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
&Apache::lonhtmlcommon::store_recent('roles',
$trolecode,' ',$frozen_roles{$trolecode});
}
# check for keyed access
if (($role eq 'st') &&
($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
# who is key authority?
my $authdom=$cdom;
my $authnum=$cnum;
if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
($authnum,$authdom)=
split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
}
# check with key authority
unless (&Apache::lonnet::validate_access_key(
$env{'environment.key.'.$cdom.'_'.$cnum},
$authdom,$authnum)) {
# there is no valid key
if ($env{'form.newkey'}) {
# student attempts to register a new key
&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
my $swinfo=&Apache::lonmenu::rawconfig();
my $start_page=&Apache::loncommon::start_page
('Verifying Access Key to Unlock this Course');
my $end_page=&Apache::loncommon::end_page();
my $buttontext=&mt('Enter Course');
my $message=&mt('Successfully registered key');
my $assignresult=
&Apache::lonnet::assign_access_key(
$env{'form.newkey'},
$authdom,$authnum,
$cdom,$cnum,
$env{'user.domain'},
$env{'user.name'},
&mt('Assigned from [_1] at [_2] for [_3]'
,$ENV{'REMOTE_ADDR'}
,&Apache::lonlocal::locallocaltime()
,$trolecode)
);
unless ($assignresult eq 'ok') {
$assignresult=~s/^error\:\s*//;
$message=&mt($assignresult).
'<br /><a href="/adm/logout">'.
&mt('Logout').'</a>';
$buttontext=&mt('Re-Enter Key');
}
$r->print(<<ENDENTEREDKEY);
$start_page
<script type="text/javascript">
// <![CDATA[
$swinfo
// ]]>
</script>
<form action="" method="post">
<input type="hidden" name="selectrole" value="1" />
<input type="hidden" name="$trolecode" value="1" />
<span class="LC_fontsize_large">$message</span><br />
<input type="submit" value="$buttontext" />
</form>
$end_page
ENDENTEREDKEY
return OK;
} else {
# print form to enter a new key
&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
my $swinfo=&Apache::lonmenu::rawconfig();
my $start_page=&Apache::loncommon::start_page
('Enter Access Key to Unlock this Course');
my $end_page=&Apache::loncommon::end_page();
$r->print(<<ENDENTERKEY);
$start_page
<script type="text/javascript">
// <![CDATA[
$swinfo
// ]]>
</script>
<form action="" method="post">
<input type="hidden" name="selectrole" value="1" />
<input type="hidden" name="$trolecode" value="1" />
<input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
<input type="submit" value="Enter key" />
</form>
$end_page
ENDENTERKEY
return OK;
}
}
}
&Apache::lonnet::log($env{'user.domain'},
$env{'user.name'},
$env{'user.home'},
"Role ".$trolecode);
&Apache::lonnet::appenv(
{'request.role' => $trolecode,
'request.role.domain' => $cdom,
'request.course.sec' => $csec,
'request.course.groups' => $cgrps});
my $tadv=0;
if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
if ($role =~ m{^\Qcr/$cdom/$cdom\E\-domainconfig/(\w+)$}) {
my $rolename = $1;
my %domdef = &Apache::lonnet::get_domain_defaults($cdom);
if (ref($domdef{'adhocroles'}) eq 'HASH') {
if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
&Apache::lonnet::appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'}});
}
}
}
my $msg;
my ($furl,$ferr)=
&Apache::lonuserstate::readmap($cdom.'/'.$cnum);
unless ($ferr) {
&Apache::lonnet::appenv({'request.course.timechecked'=>$now});
unless (($env{'form.switchrole'}) ||
($env{"environment.internal.$cdom.$cnum.$role.adhoc"})) {
&Apache::lonnet::put('nohist_crslastlogin',
{$env{'user.name'}.':'.$env{'user.domain'}.
':'.$csec.':'.$role => $now},$cdom,$cnum);
}
if (($env{"environment.internal.$cdom.$cnum.$role.adhoc"}) &&
(&Apache::lonnet::allowed('vxc',$cdom.'_'.$cnum))) {
my $owner = $env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'};
my @coowners = split(/,/,$env{'course.'.$env{'request.course.id'}.'.internal.co-owners'});
my %auaccess;
foreach my $user ($owner,@coowners) {
my ($cpname,$cpdom) = split(/:/,$user);
my %auroles = &Apache::lonnet::get_my_roles($cpname,$cpdom,'userroles',undef,['au','ca','aa'],[$cdom]);
foreach my $key (keys(%auroles)) {
my ($auname,$audom,$aurole) = split(/:/,$key);
if ($aurole eq 'au') {
$auaccess{$cpname} = 1;
} else {
$auaccess{$auname} = 1;
}
}
}
&Apache::lonnet::appenv({'request.course.adhocsrcaccess' => join(',',sort(keys(%auaccess))) });
}
my ($feeds,$syllabus_time);
&Apache::lonrss::advertisefeeds($cnum,$cdom,undef,\$feeds);
&Apache::lonnet::appenv({'request.course.feeds' => $feeds});
&Apache::lonnet::get_numsuppfiles($cnum,$cdom,1);
unless ($env{'course.'.$cdom.'_'.$cnum.'.updatedsyllabus'}) {
unless (($env{'course.'.$cdom.'_'.$cnum.'.externalsyllabus'}) ||
($env{'course.'.$cdom.'_'.$cnum.'.uploadedsyllabus'})) {
my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
$syllabus_time = $syllabus{'uploaded.lastmodified'};
if ($syllabus_time) {
&Apache::lonnet::appenv({'request.course.syllabustime' => $syllabus_time});
}
}
}
}
if (($env{'form.orgurl'}) &&
($env{'form.orgurl'}!~/^\/adm\/flip/) &&
($env{'form.orgurl'} ne '/adm/roles')) {
my $dest=$env{'form.orgurl'};
if ($env{'form.symb'}) {
if ($dest =~ /\?/) {
$dest .= '&';
} else {
$dest .= '?';
}
$dest .= 'symb='.$env{'form.symb'};
}
if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
&Apache::lonnet::appenv({'request.role.adv'=>$tadv});
if (($ferr) && ($tadv)) {
&error_page($r,$ferr,$dest);
} else {
if ($dest =~ m{^/adm/coursedocs\?folderpath}) {
if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
&Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,
$cdom.'_'.$cnum);
}
}
if (($env{'request.lti.login'}) &&
($env{'request.lti.rosterid'} || $env{'request.lti.passbackid'})) {
&process_lti($r,$cdom,$cnum);
}
$r->internal_redirect($dest);
}
return OK;
} else {
if (!$env{'request.course.id'}) {
&Apache::lonnet::appenv(
{"request.course.id" => $cdom.'_'.$cnum});
$furl='/adm/roles?tryagain=1';
$msg='<p><span class="LC_error">'
.&mt('Could not initialize [_1] at this time.',
$env{'course.'.$cdom.'_'.$cnum.'.description'})
.'</span></p>'
.'<p>'.&mt('Please try again.').'</p>'
.'<p>'.$ferr.'</p>';
}
if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
&Apache::lonnet::appenv({'request.role.adv'=>$tadv});
if (($ferr) && ($tadv)) {
&error_page($r,$ferr,$furl);
} else {
if (($env{'request.lti.login'}) &&
($env{'request.lti.rosterid'} || $env{'request.lti.passbackid'})) {
&process_lti($r,$cdom,$cnum);
}
# Check to see if the user is a CC entering a course
# for the first time
if ((($role eq 'cc') || ($role eq 'co'))
&& ($env{'course.'.$cdom.'_'.$cnum.'.course.helper.not.run'})) {
$furl = "/adm/helper/course.initialization.helper";
# Send the user to the course they selected
} elsif ($env{'request.course.id'}) {
if ((&Apache::loncommon::course_type() eq 'Placement') &&
(!$env{'request.role.adv'})) {
my ($score,$incomplete) =
&Apache::lonplacementtest::check_completion(undef,undef,1);
if (($incomplete) && ($incomplete < 100)) {
&redirect_user($r, &mt('Entering [_1]',
$env{'course.'.$cdom.'_'.$cnum.'.description'}),
'/adm/placement', $msg);
return OK;
}
}
my ($dest,$destsymb,$checkenc);
$dest = $env{'form.destinationurl'};
$destsymb = $env{'form.destsymb'};
if ($dest ne '') {
if ($env{'form.switchrole'}) {
if ($destsymb ne '') {
if ($destsymb !~ m{^/enc/}) {
unless ($env{'request.role.adv'}) {
$checkenc = 1;
}
}
}
if (($dest =~ m{^\Q/public/$cdom/$cnum/syllabus\E.*(\?|\&)usehttp=1}) ||
($dest =~ m{^\Q/adm/wrapper/ext/\E(?!https:)})) {
if ($ENV{'SERVER_PORT'} == 443) {
unless (&Apache::lonnet::uses_sts()) {
my $hostname = $r->hostname();
if ($hostname ne '') {
$dest = 'http://'.$hostname.$dest;
}
}
}
}
if ($dest =~ m{^/enc/}) {
if ($env{'request.role.adv'}) {
$dest = &Apache::lonenc::unencrypted($dest);
if ($destsymb eq '') {
($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/);
$destsymb = &unescape($destsymb);
}
}
} else {
if ($destsymb eq '') {
($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]+)/);
$destsymb = &unescape($destsymb);
}
unless ($env{'request.role.adv'}) {
$checkenc = 1;
}
}
if (($checkenc) && ($destsymb ne '')) {
my ($encstate,$unencsymb,$res);
$unencsymb = &Apache::lonnet::symbclean($destsymb);
(undef,undef,$res) = &Apache::lonnet::decode_symb($unencsymb);
&Apache::lonnet::symbverify($unencsymb,$res,\$encstate);
if ($encstate) {
if (($dest ne '') && ($dest !~ m{^/enc/})) {
$dest=&Apache::lonenc::encrypted($dest);
}
}
}
}
unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) {
if (($destsymb ne '') && ($destsymb !~ m{^/enc/})) {
my $esc_symb = &escape($destsymb);
$dest .= (($dest =~/\?/)? '&':'?').'symb='.$esc_symb;
}
}
my $title;
unless ($env{'request.lti.login'}) {
$title = &mt('Entering [_1]',
$env{'course.'.$cdom.'_'.$cnum.'.description'});
}
&redirect_user($r,$title,$dest,$msg);
return OK;
}
if (&Apache::lonnet::allowed('whn',
$env{'request.course.id'})
|| &Apache::lonnet::allowed('whn',
$env{'request.course.id'}.'/'
.$env{'request.course.sec'})
) {
my $startpage = &courseloadpage($env{'request.course.id'});
unless ($startpage eq 'firstres') {
$msg = &mt('Entering [_1] ...',
$env{'course.'.$env{'request.course.id'}.'.description'});
&redirect_user($r, &mt('New in course'),
'/adm/whatsnew?refpage=start', $msg);
return OK;
}
}
}
# Are we allowed to look at the first resource?
my $access;
if ($furl =~ m{^(/adm/wrapper|)/ext/}) {
# If it's an external resource,
# strip off the symb argument and possible query
my ($exturl,$symb) = ($furl =~ m{^(.+)(?:\?|\&)symb=(.+)$});
# Unencode $symb
$symb = &unescape($symb);
# Then check for permission
$access = &Apache::lonnet::allowed('bre',$exturl,$symb);
# For other resources just check for permission
} else {
$access = &Apache::lonnet::allowed('bre',$furl);
}
if (!$access) {
$furl = &Apache::lonpageflip::first_accessible_resource();
} elsif ($access eq 'B') {
$furl = '/adm/navmaps?showOnlyHomework=1';
}
my $title;
if ($env{'request.lti.login'}) {
undef($msg);
} else {
$title = &mt('Entering [_1]',
$env{'course.'.$cdom.'_'.$cnum.'.description'});
$msg = &mt('Entering [_1] ...',
$env{'course.'.$cdom.'_'.$cnum.'.description'});
}
&redirect_user($r,$title,$furl,$msg);
}
return OK;
}
}
#
# Send the user to the construction space they selected
if ($role =~ /^(au|ca|aa)$/) {
my $redirect_url = '/priv/';
if ($role eq 'au') {
$redirect_url.=$env{'user.domain'}.'/'.$env{'user.name'};
} else {
$redirect_url .= $where;
}
$redirect_url .= '/';
&redirect_user($r,&mt('Entering Authoring Space'),
$redirect_url);
return OK;
}
if ($role eq 'dc') {
my $redirect_url = '/adm/menu/';
&redirect_user($r,&mt('Loading Domain Coordinator Menu'),
$redirect_url);
return OK;
}
if ($role eq 'dh') {
my $redirect_url = '/adm/menu/';
&redirect_user($r,&mt('Loading Domain Helpdesk Menu'),
$redirect_url);
return OK;
}
if ($role eq 'da') {
my $redirect_url = '/adm/menu/';
&redirect_user($r,&mt('Loading Domain Helpdesk Assistant Menu'),
$redirect_url);
return OK;
}
if ($role eq 'sc') {
my $redirect_url = '/adm/grades?command=scantronupload';
&redirect_user($r,&mt('Loading Data Upload Page'),
$redirect_url);
return OK;
}
}
}
}
}
# =============================================================== No Roles Init
&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
return OK if $r->header_only;
my $crumbtext = 'User Roles';
my $pagetitle = 'My Roles';
my $recent = &mt('Recent Roles');
my $standby = &mt('Role selected. Please stand by.');
my $show_course=&Apache::loncommon::show_course();
if ($show_course) {
$crumbtext = 'Courses';
$pagetitle = 'My Courses';
$recent = &mt('Recent Courses');
$standby = &mt('Course selected. Please stand by.');
}
my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
my %roles_in_env;
my $showcount = &roles_from_env(\%roles_in_env,$update);
my $swinfo=&Apache::lonmenu::rawconfig();
my %domdefs=&Apache::lonnet::get_domain_defaults($env{'user.domain'});
my $cattype = 'std';
if ($domdefs{'catauth'}) {
$cattype = $domdefs{'catauth'};
}
my $placementonly;
if ($showcount == 1) {
if ($env{'request.course.id'}) {
if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') {
$placementonly = 1;
}
} else {
foreach my $rolecode (keys(%roles_in_env)) {
my ($cid) = ($rolecode =~ m{^\Quser.role.st./\E($match_domain/$match_courseid)(?:/|$)});
if ($cid) {
my %coursedescription =
&Apache::lonnet::coursedescription($cid,{'one_time' => '1'});
if ($coursedescription{'type'} eq 'Placement') {
$placementonly = 1;
}
last;
}
}
}
}
my ($start_page,$funcs);
if ($placementonly) {
$start_page=&Apache::loncommon::start_page($pagetitle,undef,
{bread_crumbs=>$brcrum,crstype=>'Placement'});
} else {
$funcs = &get_roles_functions($showcount,$cattype);
my $crumbsright;
if ($env{'browser.mobile'}) {
$crumbsright = $funcs;
undef($funcs);
}
$start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum,
bread_crumbs_component=>$crumbsright});
}
&js_escape(\$standby);
my $noscript='<br /><span class="LC_error">'.&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.').'<br />'.&mt('As this is not the case, most functionality in the system will be unavailable.').'</span><br />';
$r->print(<<ENDHEADER);
$start_page
$funcs
<noscript>
$noscript
</noscript>
<script type="text/javascript">
// <![CDATA[
$swinfo
window.focus();
active=true;
function enterrole (thisform,rolecode,buttonname) {
if (active) {
active=false;
document.title='$standby';
window.status='$standby';
thisform.newrole.value=rolecode;
thisform.submit();
} else {
alert('$standby');
}
}
function rolesView (caller) {
if ((caller == 'showall') || (caller == 'noshowall')) {
document.rolechoice.display.value = caller;
} else {
if ((caller == 'doupdate') || (caller == 'requestauthor') ||
(caller == 'queued')) {
document.rolechoice.state.value = caller;
}
}
document.rolechoice.selectrole.value='';
document.rolechoice.submit();
}
// ]]>
</script>
ENDHEADER
# ------------------------------------------ Get Error Message from Environment
my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
if ($env{'user.error.msg'}) {
$r->log_reason(
"$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
}
# ------------------------------------------------- Can this user re-init, etc?
my $advanced=$env{'user.adv'};
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
my $tryagain=$env{'form.tryagain'};
my $reinit=$env{'user.reinit'};
delete $env{'user.reinit'};
# -------------------------------------------------------- Generate Page Output
# --------------------------------------------------------------- Error Header?
if ($error) {
$r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
$r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
if ($priv ne '') {
$r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
}
if ($fn ne '') {
$r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
}
if ($msg ne '') {
$r->print(&mt('Action : ').$msg."\n");
}
$r->print("</pre><hr />");
my $url=$fn;
my $last;
if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
&GDBM_READER(),0640)) {
$last=$hash{'last_known'};
untie(%hash);
}
if ($last) { $fn.='?symb='.&escape($last); }
&Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
&Apache::lonenc::check_encrypt($fn));
} else {
if ($env{'user.error.msg'}) {
if ($reinit) {
$r->print(
'<h3><span class="LC_error">'.
&mt('As your session file for the course or community has expired, you will need to re-select it.').'</span></h3>');
} else {
$r->print(
'<h3><span class="LC_error">'.
&mt('You need to choose another user role or enter a specific course or community for this function.').
'</span></h3>');
}
}
}
if ($nochoose) {
$r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
&mt('This action is currently not authorized.').'</span>'.
&Apache::loncommon::end_page());
return OK;
} else {
if ($updateresult || $reqauthor || $hotlist) {
my $showresult = '<div>';
if ($updateresult) {
$showresult .= &Apache::lonhtmlcommon::confirm_success($updateresult);
}
if ($reqauthor) {
$showresult .= &Apache::lonhtmlcommon::confirm_success($reqauthor);
}
if ($hotlist) {
$showresult .= $hotlist;
}
$showresult .= '</div>';
$r->print($showresult);
} elsif ($env{'form.state'} eq 'queued') {
$r->print(&get_queued());
}
if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
$fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
}
my $display = ($env{'form.display'} =~ /^(showall)$/);
$r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
$r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
$r->print('<input type="hidden" name="selectrole" value="1" />');
$r->print('<input type="hidden" name="newrole" value="" />');
$r->print('<input type="hidden" name="display" value="'.$display.'" />');
$r->print('<input type="hidden" name="state" value="" />');
}
$r->rflush();
my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
my ($countactive,$countfuture,$inrole,$possiblerole) =
&gather_roles($update,$refresh,$now,$reinit,$nochoose,\%roles_in_env,\%roletext,
\%sortrole,\%roleclass,\%futureroles,\%timezones,$loncaparev);
$refresh = $now;
&Apache::lonnet::appenv({'user.refresh.time' => $refresh});
if ($countactive == 1) {
if ($env{'request.course.id'}) {
if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') {
$placementonly = 1;
}
} elsif ($possiblerole) {
if ($possiblerole =~ m{^st\./($match_domain)/($match_courseid)(?:/|$)}) {
if ($env{'course.'.$1.'_'.$2.'.type'} eq 'Placement') {
$placementonly = 1;
}
}
}
}
if ((($cattype eq 'std') || ($cattype eq 'domonly')) && (!$env{'user.adv'}) &&
(!$placementonly)) {
if ($countactive > 0) {
my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
$r->print(
'<p>'
.&mt('[_1]Visit the [_2]Course/Community Catalog[_3][_4]'
.' to view all [_5] LON-CAPA courses and communities.'
,'<b>'
,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
,'</a>'
,'</b>'
,'"'.$domdesc.'"')
.'<br />'
.&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
.' you may be able to enroll if self-enrollment is permitted.'
,'<b>','</b>')
.'</p>'
);
}
}
# No active roles
if ($countactive==0) {
my $elapsed = 0;
if ($now && $update) {
$elapsed = $now - $update;
}
&requestcourse_advice($r,$cattype,$inrole,$elapsed);
$r->print('</form>');
if ($countfuture) {
$r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
$nochoose);
&print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
\%roletext,$update,$then);
my $tremark='';
my $tbg;
if ($env{'request.role'} eq 'cm') {
$tbg="LC_roles_selected";
$tremark=&mt('Currently selected.').' ';
} else {
$tbg="LC_roles_is";
}
$r->print(&Apache::loncommon::start_data_table_row()
.'<td class="'.$tbg.'"> </td>'
.'<td colspan="3">'
.&mt('No role specified')
.'</td>'
.'<td>'.$tremark.' </td>'
.&Apache::loncommon::end_data_table_row()
);
$r->print(&Apache::loncommon::end_data_table());
}
$r->print(&Apache::loncommon::end_page());
return OK;
} elsif (($placementonly) && ($env{'request.role'} eq 'cm')) {
$r->print('<h3>'.&mt('Please stand by.').'</h3>
<input type="hidden" name="'.$possiblerole.'" value="1" />
<noscript><br />
<input type="submit" name="submit" value="'.&mt('Continue').'" />
</noscript></form>');
$r->rflush();
$r->print('<script type="text/javascript">document.forms.rolechoice.submit();</script>');
$r->print(&Apache::loncommon::end_page());
return OK;
}
# ----------------------------------------------------------------------- Table
if (($numdc > 0) || (($numhelpdesk > 0) && ($numadhoc > 0))) {
$r->print(&coursepick_jscript().
&Apache::loncommon::coursebrowser_javascript());
}
if ($numdc > 0) {
$r->print(&Apache::loncommon::authorbrowser_javascript());
}
unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
$r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
}
if ($env{'form.destinationurl'}) {
$r->print('<input type="hidden" name="destinationurl" value="'.
$env{'form.destinationurl'}.'" />');
if ($env{'form.destsymb'} ne '') {
$r->print('<input type="hidden" name="destsymb" value="'.
$env{'form.destsymb'}.'" />');
}
}
my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
if ($env{'environment.recentroles'}) {
my %recent_roles =
&Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
my $output='';
foreach my $role (sort(keys(%recent_roles))) {
if (ref($roletext{'user.role.'.$role}) eq 'ARRAY') {
$output.= &Apache::loncommon::start_data_table_row().
$roletext{'user.role.'.$role}->[0].
&Apache::loncommon::end_data_table_row();
if ($roletext{'user.role.'.$role}->[1] ne '') {
$output .= &Apache::loncommon::continue_data_table_row().
$roletext{'user.role.'.$role}->[1].
&Apache::loncommon::end_data_table_row();
}
if ($role =~ m{^dc\./($match_domain)/$}
&& $dcroles{$1}) {
$output .= &adhoc_roles_row($1,'recent');
} elsif ($role =~ m{^(dh|da)\./($match_domain)/$}) {
$output .= &adhoc_customroles_row($1,$2,'recent',$update,$then);
}
} elsif ($numdc > 0) {
unless ($role =~/^error\:/) {
my ($roletext,$role_text_end) = &display_cc_role('user.role.'.$role);
if ($roletext) {
$output.= &Apache::loncommon::start_data_table_row().
$roletext.
&Apache::loncommon::end_data_table_row();
if ($role_text_end) {
$output .= &Apache::loncommon::continue_data_table_row().
$role_text_end.
&Apache::loncommon::end_data_table_row();
}
}
}
}
}
if ($output) {
$r->print(&Apache::loncommon::start_data_table_empty_row()
.'<td align="center" colspan="5">'
.$recent
.'</td>'
.&Apache::loncommon::end_data_table_empty_row()
);
$r->print($output);
$doheaders ++;
}
}
&print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext,$update,$then);
if ($countactive > 1) {
my $tremark='';
my $tbg;
if ($env{'request.role'} eq 'cm') {
$tbg="LC_roles_selected";
$tremark=&mt('Currently selected.').' ';
} else {
$tbg="LC_roles_is";
}
$r->print(&Apache::loncommon::start_data_table_row());
unless ($nochoose) {
if ($env{'request.role'} ne 'cm') {
$r->print('<td class="'.$tbg.'"><input type="submit" value="'.
&mt('Select').'" name="cm" /></td>');
} else {
$r->print('<td class="'.$tbg.'"> </td>');
}
}
$r->print('<td colspan="3">'
.&mt('No role specified')
.'</td>'
.'<td>'.$tremark.' </td>'
.&Apache::loncommon::end_data_table_row()
);
}
$r->print(&Apache::loncommon::end_data_table());
unless ($nochoose) {
$r->print("</form>\n");
}
# ------------------------------------------------------------ Privileges Info
if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
$r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
$r->print(&privileges_info());
}
my $announcements = &Apache::lonnet::getannounce();
$r->print(
'<br />'.
'<h2>'.&mt('Announcements').'</h2>'.
$announcements
) unless (!$announcements);
if ($advanced) {
my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
$r->print('<p><small><i>'
.&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
.'</i></small></p>');
}
$r->print(&Apache::loncommon::end_page());
return OK;
}
sub roles_from_env {
my ($roleshash,$update) = @_;
my $count = 0;
if (ref($roleshash) eq 'HASH') {
foreach my $envkey (keys(%env)) {
if ($envkey =~ m{^user\.role\.(\w+)[./]}) {
next if ($1 eq 'gr');
$roleshash->{$envkey} = $env{$envkey};
my ($start,$end) = split(/\./,$env{$envkey});
unless ($end && $end<$update) {
$count ++;
}
}
}
}
return $count;
}
sub gather_roles {
my ($update,$refresh,$now,$reinit,$nochoose,$roles_in_env,$roletext,$sortrole,$roleclass,$futureroles,
$timezones,$loncaparev) = @_;
my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
my $advanced = $env{'user.adv'};
my $tryagain = $env{'form.tryagain'};
my @ids = &Apache::lonnet::current_machine_ids();
my (%willtrust,%trustchecked);
if (ref($roles_in_env) eq 'HASH') {
my %adhocdesc;
foreach my $envkey (sort(keys(%{$roles_in_env}))) {
my $button = 1;
my $switchserver='';
my $switchwarning;
my ($role_text,$role_text_end,$sortkey,$role,$where,$trolecode,$tstart,
$tend,$tremark,$tstatus,$tpstart,$tpend);
&Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
\$trolecode,\$tstatus,\$tstart,\$tend);
next if (!defined($role) || $role eq '' || $role =~ /^gr/);
$tremark='';
$tpstart=' ';
$tpend=' ';
if ($env{'request.role'} eq $trolecode) {
$tstatus='selected';
}
my $tbg;
if (($tstatus eq 'is')
|| ($tstatus eq 'selected')
|| ($tstatus eq 'future')
|| ($env{'form.display'} eq 'showall')) {
my $timezone = &role_timezone($where,$timezones);
if ($tstart) {
$tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
}
if ($tend) {
$tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
}
if ($tstatus eq 'is') {
$tbg='LC_roles_is';
$possiblerole=$trolecode;
$countactive++;
} elsif ($tstatus eq 'future') {
$tbg='LC_roles_future';
$button=0;
$futureroles->{$trolecode} = $tstart.':'.$tend;
$countfuture ++;
} elsif ($tstatus eq 'expired') {
$tbg='LC_roles_expired';
$button=0;
} elsif ($tstatus eq 'will_not') {
$tbg='LC_roles_will_not';
$tremark.=&mt('Expired after logout.').' ';
} elsif ($tstatus eq 'selected') {
$tbg='LC_roles_selected';
$inrole=1;
$countactive++;
$tremark.=&mt('Currently selected.').' ';
}
my $trole;
if ($role =~ /^cr\//) {
my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
unless ($rauthor eq $rdomain.'-domainconfig') {
if ($tremark) { $tremark.='<br />'; }
$tremark.=&mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
}
}
$trole=Apache::lonnet::plaintext($role);
my $ttype;
my $twhere;
my $skipcal;
my ($tdom,$trest,$tsection)=
split(/\//,Apache::lonnet::declutter($where));
# First, Co-Authorship roles
if (($role eq 'ca') || ($role eq 'aa')) {
my $home = &Apache::lonnet::homeserver($trest,$tdom);
my $allowed=0;
my $prohibited;
foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
if (!$allowed) {
$button=0;
unless ($trustchecked{$tdom}) {
if ((&Apache::lonnet::will_trust('othcoau',$env{'user.domain'},$tdom)) &&
(&Apache::lonnet::will_trust('coaurem',$tdom,$env{'user.domain'}))) {
$willtrust{$tdom} = 1;
$trustchecked{$tdom} = 1;
}
}
if ($willtrust{$tdom}) {
$switchserver='otherserver='.$home.'&role='.$trolecode;
} else {
$prohibited = 1;
$tremark .= &mt('Session switch required but prohibited.');
}
}
#next if ($home eq 'no_host');
$home = &Apache::lonnet::hostname($home);
$ttype='Authoring Space';
$twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
': '.$tdom.'<br />'.
' '.&mt('Server').': '.$home;
$env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
unless ($prohibited) {
$tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
}
$sortkey=$role."$trest:$tdom";
} elsif ($role eq 'au') {
# Authors
my $home = &Apache::lonnet::homeserver
($env{'user.name'},$env{'user.domain'});
my $allowed=0;
foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
if (!$allowed) {
$button=0;
$switchserver='otherserver='.$home.'&role='.$trolecode;
}
#next if ($home eq 'no_host');
$home = &Apache::lonnet::hostname($home);
$ttype='Authoring Space';
$twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
': '.$home;
$env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
$tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
$sortkey=$role;
} elsif ($trest) {
my $tcourseid=$tdom.'_'.$trest;
$ttype = &Apache::loncommon::course_type($tcourseid);
if ($role !~ /^cr/) {
$trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
} elsif ($role =~ m{^\Qcr/$tdom/$tdom\E\-domainconfig/(\w+)$}) {
my $rolename = $1;
my $desc;
if (ref($adhocdesc{$tdom}) eq 'HASH') {
$desc = $adhocdesc{$tdom}{$rolename};
} else {
my %domdef = &Apache::lonnet::get_domain_defaults($tdom);
if (ref($domdef{'adhocroles'}) eq 'HASH') {
foreach my $rolename (sort(keys(%{$domdef{'adhocroles'}}))) {
if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
$adhocdesc{$tdom}{$rolename} = $domdef{'adhocroles'}{$rolename}{'desc'};
$desc = $adhocdesc{$tdom}{$rolename};
}
}
}
}
if ($desc ne '') {
$trole = $desc;
} else {
$trole = &mt('Helpdesk[_1]',' '.$rolename);
}
} else {
$trole = (split(/\//,$role,4))[-1];
}
if ($env{'course.'.$tcourseid.'.description'}) {
my $home=$env{'course.'.$tcourseid.'.home'};
$twhere=$env{'course.'.$tcourseid.'.description'};
$sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
$twhere = &HTML::Entities::encode($twhere,'"<>&');
unless ($twhere eq &mt('Currently not available')) {
$twhere.=' <span class="LC_fontsize_small">'.
&Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
'</span>';
unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
my $required = $env{'course.'.$tcourseid.'.internal.releaserequired'};
if ($required ne '') {
($switchserver,$switchwarning) =
&Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
if ($switchserver || $switchwarning) {
$button = 0;
}
}
}
}
} else {
my %newhash=&Apache::lonnet::coursedescription($tcourseid);
if (%newhash) {
$sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
"\0".$envkey;
$twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').
' <span class="LC_fontsize_small">'.
&Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
'</span>';
$ttype = $newhash{'type'};
$trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
my $home = $newhash{'home'};
unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
my $required = $newhash{'internal.releaserequired'};
if ($required ne '') {
($switchserver,$switchwarning) =
&Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
if ($switchserver || $switchwarning) {
$button = 0;
}
}
}
} else {
$twhere=&mt('Currently not available');
$env{'course.'.$tcourseid.'.description'}=$twhere;
$sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
$ttype = 'Unavailable';
$skipcal = 1;
}
}
if ($ttype eq 'Placement') {
$ttype = 'Placement Test';
}
if ($tsection) {
$twhere.='<br />'.&mt('Section').': '.$tsection;
}
if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
} elsif ($tdom) {
$ttype='Domain';
$twhere=$tdom;
$sortkey=$role.$twhere;
} else {
$ttype='System';
$twhere=&mt('system wide');
$sortkey=$role.$twhere;
}
($role_text,$role_text_end) =
&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
$tpend,$nochoose,$button,$switchserver,$reinit,
$switchwarning,$skipcal);
$roletext->{$envkey}=[$role_text,$role_text_end];
if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
$sortrole->{$sortkey}=$envkey;
$roleclass->{$envkey}=$ttype;
}
}
}
return ($countactive,$countfuture,$inrole,$possiblerole);
}
sub role_timezone {
my ($where,$timezones) = @_;
my $timezone;
if (ref($timezones) eq 'HASH') {
if ($where =~ m{^/($match_domain)/($match_courseid)}) {
my $cdom = $1;
my $cnum = $2;
if ($cdom && $cnum) {
if (!exists($timezones->{$cdom.'_'.$cnum})) {
my $tz;
if ($env{'course.'.$cdom.'_'.$cnum.'.description'}) {
$tz = $env{'course.'.$cdom.'_'.$cnum.'.timezone'};
} else {
my %timehash =
&Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
$tz = $timehash{'timezone'};
}
if ($tz eq '') {
if (!exists($timezones->{$cdom})) {
my %domdefaults =
&Apache::lonnet::get_domain_defaults($cdom);
if ($domdefaults{'timezone_def'} eq '') {
$timezones->{$cdom} = 'local';
} else {
$timezones->{$cdom} = $domdefaults{'timezone_def'};
}
}
$timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
} else {
$timezones->{$cdom.'_'.$cnum} =
&Apache::lonlocal::gettimezone($tz);
}
}
$timezone = $timezones->{$cdom.'_'.$cnum};
}
} else {
my ($tdom) = ($where =~ m{^/($match_domain)});
if ($tdom) {
if (!exists($timezones->{$tdom})) {
my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
if ($domdefaults{'timezone_def'} eq '') {
$timezones->{$tdom} = 'local';
} else {
$timezones->{$tdom} = $domdefaults{'timezone_def'};
}
}
$timezone = $timezones->{$tdom};
}
}
if ($timezone eq 'local') {
$timezone = undef;
}
}
return $timezone;
}
sub roletable_headers {
my ($r,$roleclass,$sortrole,$nochoose) = @_;
my $doheaders;
if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
$r->print('<br />'
.&Apache::loncommon::start_data_table('LC_textsize_mobile')
.&Apache::loncommon::start_data_table_header_row()
);
if (!$nochoose) { $r->print('<th> </th>'); }
$r->print('<th>'.&mt('User Role').'</th>'
.'<th>'.&mt('Extent').'</th>'
.'<th>'.&mt('Start').'</th>'
.'<th>'.&mt('End').'</th>'
.&Apache::loncommon::end_data_table_header_row()
);
$doheaders=-1;
my @roletypes = &roletypes();
foreach my $type (@roletypes) {
my $haverole=0;
foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
$haverole=1;
}
}
if ($haverole) { $doheaders++; }
}
}
return $doheaders;
}
sub roletypes {
my @types = ('Domain','Authoring Space','Course','Placement Test','Community','Unavailable','System');
return @types;
}
sub print_rolerows {
my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext,$update,$then) = @_;
if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
my @types = &roletypes();
foreach my $type (@types) {
my $output;
foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
if (ref($roletext) eq 'HASH') {
if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
$output.= &Apache::loncommon::start_data_table_row().
$roletext->{$sortrole->{$which}}->[0].
&Apache::loncommon::end_data_table_row();
if ($roletext->{$sortrole->{$which}}->[1] ne '') {
$output .= &Apache::loncommon::continue_data_table_row().
$roletext->{$sortrole->{$which}}->[1].
&Apache::loncommon::end_data_table_row();
}
}
if ($sortrole->{$which} =~ m{^user\.role\.dc\./($match_domain)/}) {
if (ref($dcroles) eq 'HASH') {
if ($dcroles->{$1}) {
$output .= &adhoc_roles_row($1,'');
}
}
} elsif ($sortrole->{$which} =~ m{^user\.role\.(dh|da)\./($match_domain)/}) {
$output .= &adhoc_customroles_row($1,$2,'',$update,$then);
}
}
}
}
if ($output) {
if ($doheaders > 0) {
$r->print(&Apache::loncommon::start_data_table_empty_row()
.'<td align="center" colspan="5">'
.&mt($type)
.'</td>'
.&Apache::loncommon::end_data_table_empty_row()
);
}
$r->print($output);
}
}
}
}
sub findcourse_advice {
my ($r,$cattype,$elapsed) = @_;
my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
$r->print('<p>'.&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
<ul>
<li>'.&mt('The course has yet to be created.').'</li>
<li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
<li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
<li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
<li>'.&mt('You registered for the course recently and there is a time lag between the time you register, and the time this information becomes available for the update of LON-CAPA course rosters.').'</li>
<li>'.&mt('Automated enrollment added you to the course in the time since you last logged-in.').' '.&mt('If that is the case you can use the "Check for changes" link in the gray Functions bar to update the list of your available course roles.').'</li>
</ul></p>');
} else {
$r->print('<p>'.&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'</p>');
if ($elapsed > 600) {
$r->print('<p>'.&mt('You may also have been assigned to a course in the time since you last logged-in, or checked for changes').
'<br />'.
&mt('If that is the case you can use the "Check for changes" link in the gray Functions bar to update the list of your available course roles.').'</p>');
}
}
if (($cattype eq 'std') || ($cattype eq 'domonly')) {
$r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
'<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
$r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'.
&Apache::loncoursequeueadmin::queued_selfenrollment());
}
return;
}
sub requestcourse_advice {
my ($r,$cattype,$inrole,$elapsed) = @_;
my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
my (%can_request,%request_doms,$output);
&Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
if (keys(%request_doms) > 0) {
my ($types,$typename) = &Apache::loncommon::course_types();
if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
my (@reqdoms,@reqtypes);
foreach my $type (sort(keys(%request_doms))) {
push(@reqtypes,$type);
if (ref($request_doms{$type}) eq 'ARRAY') {
my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
$output .=
'<li>'
.&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
'<i>',
'</i>',
'<b>'.$domstr.'</b>')
.'</li>';
foreach my $dom (@{$request_doms{$type}}) {
unless (grep(/^\Q$dom\E/,@reqdoms)) {
push(@reqdoms,$dom);
}
}
}
}
my @showtypes;
foreach my $type (@{$types}) {
if (grep(/^\Q$type\E$/,@reqtypes)) {
push(@showtypes,$type);
}
}
my $requrl = '/adm/requestcourse';
if (@reqdoms == 1) {
$requrl .= '?showdom='.$reqdoms[0];
}
if (@showtypes > 0) {
$requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
}
if (@reqdoms == 1 || @showtypes > 0) {
$requrl .= '&state=crstype&action=new';
}
if ($output) {
$r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
'<p>'.
&mt('You have rights to request the creation of courses and/or communities in the following domain(s):').
'<ul>'.
$output.
'</ul>'.
&mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.',
'<a href="'.$requrl.'">','</a>').
'</p>');
}
}
} elsif (!$env{'user.adv'}) {
if ($inrole) {
$r->print('<h3>'.&mt('Currently no additional roles, courses or communities').'</h3>');
} else {
$r->print('<h3>'.&mt('Currently no active roles, courses or communities').'</h3>');
}
&findcourse_advice($r,$cattype,$elapsed);
}
return;
}
sub privileges_info {
my ($which) = @_;
my $output;
$which ||= $env{'request.role'};
foreach my $envkey (sort(keys(%env))) {
next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
my $where=$1;
my $ttype;
my $twhere;
my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
if ($trest) {
if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
$ttype='Authoring Space';
$twhere='User: '.$trest.', Domain: '.$tdom;
} else {
$ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
$twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
if ($tsec) {
my $sec_type = 'Section';
if (exists($env{"user.role.gr.$where"})) {
$sec_type = 'Group';
}
$twhere.=' ('.$sec_type.': '.$tsec.')';
}
}
} elsif ($tdom) {
$ttype='Domain';
$twhere=$tdom;
} else {
$ttype='System';
$twhere='/';
}
$output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
foreach my $priv (sort(split(/:/,$env{$envkey}))) {
next if (!$priv);
my ($prv,$restr)=split(/\&/,$priv);
my $trestr='';
if ($restr ne 'F') {
$trestr.=' ('.
join(', ',
map { &Apache::lonnet::plaintext($_) }
(split('',$restr))).') ';
}
$output .= "\n\t".
'<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
}
$output .= "\n".'</ul>';
}
return $output;
}
sub build_roletext {
my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,
$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning,$skipcal) = @_;
my ($roletext,$roletext_end,$poss_adhoc);
if ($trolecode =~ m/^d(c|h|a)\./) {
$poss_adhoc = 1;
}
my $rowspan=($poss_adhoc) ? ''
: ' rowspan="2" ';
unless ($nochoose) {
my $buttonname=$trolecode;
$buttonname=~s/\W//g;
if (!$button) {
if ($switchserver) {
$roletext.='<td'.$rowspan.' class="'.$tbg.'">'
.'<a href="/adm/switchserver?'.$switchserver.'">'
.&mt('Switch Server')
.'</a></td>';
} else {
$roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
}
if ($switchwarning) {
if ($tremark eq '') {
$tremark = $switchwarning;
} else {
$tremark .= '<br />'.$switchwarning;
}
}
} elsif ($tstatus eq 'is') {
$roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
'<input name="'.$buttonname.'" type="button" value="'.
&mt('Select').'" onclick="javascript:enterrole(this.form,\''.
$trolecode."','".$buttonname.'\');" /></td>';
} elsif ($tryagain) {
$roletext.=
'<td'.$rowspan.' class="'.$tbg.'">'.
'<input name="'.$buttonname.'" type="button" value="'.
&mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
$trolecode."','".$buttonname.'\');" /></td>';
} elsif ($advanced) {
$roletext.=
'<td'.$rowspan.' class="'.$tbg.'">'.
'<input name="'.$buttonname.'" type="button" value="'.
&mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
$trolecode."','".$buttonname.'\');" /></td>';
} elsif ($reinit) {
$roletext.=
'<td'.$rowspan.' class="'.$tbg.'">'.
'<input name="'.$buttonname.'" type="button" value="'.
&mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
$trolecode."','".$buttonname.'\');" /></td>';
} else {
$roletext.=
'<td'.$rowspan.' class="'.$tbg.'">'.
'<input name="'.$buttonname.'" type="button" value="'.
&mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
$trolecode."','".$buttonname.'\');" /></td>';
}
}
if (($trolecode !~ m/^(dc|ca|au|aa)\./) && (!$skipcal)) {
$tremark.=&Apache::lonannounce::showday(time,1,
&Apache::lonannounce::readcalendar($tdom.'_'.$trest));
}
$roletext.='<td>'.$trole.'</td>'
.'<td>'.$twhere.'</td>'
.'<td>'.$tpstart.'</td>'
.'<td>'.$tpend.'</td>';
unless ($poss_adhoc) {
$roletext_end = '<td colspan="4">'.
$tremark.' '.
'</td>';
}
return ($roletext,$roletext_end);
}
sub check_author_homeserver {
my ($uname,$udom)=@_;
if (($uname eq '') || ($udom eq '')) {
return ('fail','');
}
my $home = &Apache::lonnet::homeserver($uname,$udom);
if (&Apache::lonnet::host_domain($home) ne $udom) {
return ('fail',$home);
}
my @ids=&Apache::lonnet::current_machine_ids();
if (grep(/^\Q$home\E$/,@ids)) {
return ('ok',$home);
} else {
return ('switchserver',$home);
}
}
sub check_for_adhoc {
my ($dcroles,$helpdeskroles,$update,$then) = @_;
my $numdc = 0;
my $numhelpdesk = 0;
my $numadhoc = 0;
my $num_custom_adhoc = 0;
if (($env{'user.adv'}) || ($env{'user.rar'})) {
foreach my $envkey (sort(keys(%env))) {
if ($envkey=~/^user\.role\.(dc|dh|da)\.\/($match_domain)\/$/) {
my $role = $1;
my $roledom = $2;
my $liverole = 1;
my ($tstart,$tend)=split(/\./,$env{$envkey});
my $limit = $update;
if ($env{'request.role'} eq "$role./$roledom/") {
$limit = $then;
}
if ($tstart && $tstart>$limit) { $liverole = 0; }
if ($tend && $tend <$limit) { $liverole = 0; }
if ($liverole) {
if ($role eq 'dc') {
$dcroles->{$roledom} = $envkey;
$numdc++;
} else {
$helpdeskroles->{$roledom} = $envkey;
my %domdefaults = &Apache::lonnet::get_domain_defaults($roledom);
if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
if (keys(%{$domdefaults{'adhocroles'}})) {
$numadhoc ++;
}
}
$numhelpdesk++;
}
}
}
}
}
return ($numdc,$numhelpdesk,$numadhoc);
}
sub adhoc_course_role {
my ($refresh,$update,$then) = @_;
my ($cdom,$cnum,$crstype);
$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
$cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
$crstype = &Apache::loncommon::course_type();
if (&check_forcc($cdom,$cnum,$refresh,$update,$then,$crstype)) {
my $setprivs;
if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
$setprivs = 1;
} else {
my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
if (($start && ($start>$refresh || $start == -1)) ||
($end && $end<$update)) {
$setprivs = 1;
}
}
unless ($setprivs) {
if (!exists($env{'user.priv.'.$env{'form.switchrole'}.'./'})) {
$setprivs = 1;
}
}
if ($setprivs) {
if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)(.*?)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
my $role = $1;
my $custom_role = $2;
my $usec = $3;
if ($role eq 'cr') {
if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
$role .= $custom_role;
} else {
return;
}
}
my (%userroles,%newrole,%newgroups,%group_privs);
my %cgroups =
&Apache::lonnet::get_active_groups($env{'user.domain'},
$env{'user.name'},$cdom,$cnum);
my $ccrole;
if ($crstype eq 'Community') {
$ccrole = 'co';
} else {
$ccrole = 'cc';
}
foreach my $group (keys(%cgroups)) {
$group_privs{$group} =
$env{'user.priv.'.$ccrole.'./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
}
$newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
my $area = '/'.$cdom.'/'.$cnum;
my $spec = $role.'.'.$area;
if ($usec ne '') {
$spec .= '/'.$usec;
$area .= '/'.$usec;
}
if ($role =~ /^cr/) {
&Apache::lonnet::custom_roleprivs(\%newrole,$role,$cdom,$cnum,$spec,$area);
} else {
&Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
}
&Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
my $adhocstart = $refresh-1;
$userroles{'user.role.'.$spec} = $adhocstart.'.';
&Apache::lonnet::appenv(\%userroles,[$role,'cm']);
}
}
}
return;
}
sub check_forcc {
my ($cdom,$cnum,$refresh,$update,$then,$crstype) = @_;
my ($is_cc,$ccrole);
if ($crstype eq 'Community') {
$ccrole = 'co';
} else {
$ccrole = 'cc';
}
if (&Apache::lonnet::is_course($cdom,$cnum)) {
my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum;
if (defined($env{$envkey})) {
$is_cc = 1;
my ($tstart,$tend)=split(/\./,$env{$envkey});
my $limit = $update;
if ($env{'request.role'} eq $ccrole.'./'.$cdom.'/'.$cnum) {
$limit = $then;
}
if ($tstart && $tstart>$refresh) { $is_cc = 0; }
if ($tend && $tend <$limit) { $is_cc = 0; }
}
}
return $is_cc;
}
sub courselink {
my ($roledom,$rowtype,$role) = @_;
my $courseform=&Apache::loncommon::selectcourse_link
('rolechoice','course'.$rowtype.'_'.$roledom.'_'.$role,
'domain'.$rowtype.'_'.$roledom.'_'.$role,
'coursedesc'.$rowtype.'_'.$roledom.'_'.$role,
$roledom.':'.$role,undef,'Course/Community');
my $hiddenitems = '<input type="hidden" name="domain'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
'<input type="hidden" name="origdom'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
'<input type="hidden" name="course'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />'.
'<input type="hidden" name="coursedesc'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />';
return $courseform.$hiddenitems;
}
sub coursepick_jscript {
my %js_lt = &Apache::lonlocal::texthash(
plsu => "Please use the 'Select Course/Community' link to open a separate pick course window where you may select the course or community you wish to enter.",
youc => 'You can only use this screen to select courses and communities in the current domain.',
);
&js_escape(\%js_lt);
my $verify_script = <<"END";
<script type="text/javascript">
// <![CDATA[
function verifyCoursePick(caller) {
var numbutton = getIndex(caller)
var pickedCourse = document.rolechoice.elements[numbutton+4].value
var pickedDomain = document.rolechoice.elements[numbutton+2].value
if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
if (pickedCourse != '') {
if (numbutton != -1) {
var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
document.rolechoice.elements[numbutton+1].name = courseTarget
document.rolechoice.submit()
}
}
else {
alert("$js_lt{'plsu'}");
}
}
else {
alert("$js_lt{'youc'}")
}
}
function getIndex(caller) {
for (var i=0;i<document.rolechoice.elements.length;i++) {
if (document.rolechoice.elements[i] == caller) {
return i;
}
}
return -1;
}
// ]]>
</script>
END
return $verify_script;
}
sub coauthorlink {
my ($dcdom,$rowtype) = @_;
my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
return $coauthorform.$hiddenitems;
}
sub display_cc_role {
my $rolekey = shift;
my ($roletext,$roletext_end);
my $advanced = $env{'user.adv'};
my $tryagain = $env{'form.tryagain'};
unless ($rolekey =~/^error\:/) {
if ($rolekey =~ m{^user\.role\.(cc|co)\./($match_domain)/($match_courseid)$}) {
my $ccrole = $1;
my $tdom = $2;
my $trest = $3;
my $tcourseid = $tdom.'_'.$trest;
my $trolecode = $ccrole.'./'.$tdom.'/'.$trest;
my $twhere;
my $ttype;
my $skipcal;
my $tbg='LC_roles_is';
my %newhash=&Apache::lonnet::coursedescription($tcourseid);
if (%newhash) {
$twhere=$newhash{'description'}.
' <span class="LC_fontsize_small">'.
&Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
'</span>';
$ttype = $newhash{'type'};
} else {
$twhere=&mt('Currently not available');
$env{'course.'.$tcourseid.'.description'}=$twhere;
$skipcal = 1;
}
my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);
$twhere.="<br />".&mt('Domain').":".$tdom;
($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'','','',$skipcal);
}
}
return ($roletext,$roletext_end);
}
sub adhoc_roles_row {
my ($dcdom,$rowtype) = @_;
my $output = &Apache::loncommon::continue_data_table_row()
.' <td colspan="5" class="LC_textsize_mobile">'
.&mt('[_1]Ad hoc[_2] roles in domain [_3]'
,'<span class="LC_cusr_emph">','</span>',$dcdom)
.' -- ';
my $role = 'cc';
my $selectcclink = &courselink($dcdom,$rowtype,$role);
my $ccrole = &Apache::lonnet::plaintext('co',undef,undef,1);
my $carole = &Apache::lonnet::plaintext('ca');
my $selectcalink = &coauthorlink($dcdom,$rowtype);
$output.=$ccrole.': '.$selectcclink
.' | '.$carole.': '.$selectcalink.'</td>'
.&Apache::loncommon::end_data_table_row();
return $output;
}
sub adhoc_customroles_row {
my ($role,$dhdom,$rowtype,$update,$then) = @_;
my $liverole = 1;
my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$dhdom/"});
my $limit = $update;
if (($role eq 'dh') && ($env{'request.role'} eq 'dh./'.$dhdom.'/')) {
$limit = $then;
}
if ($tstart && $tstart>$limit) { $liverole = 0; }
if ($tend && $tend <$limit) { $liverole = 0; }
return unless ($liverole);
my %domdefaults = &Apache::lonnet::get_domain_defaults($dhdom);
if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
if (scalar(keys(%{$domdefaults{'adhocroles'}})) > 0) {
return &Apache::loncommon::continue_data_table_row()
.' <td colspan="5" class="LC_textsize_mobile">'
.&mt('[_1]Ad hoc[_2] course/community roles in domain [_3]',
'<span class="LC_cusr_emph">','</span>',$dhdom)
.' -- '.&courselink($dhdom,$rowtype,$role);
}
}
return;
}
sub recent_filename {
my $area=shift;
return 'nohist_recent_'.&escape($area);
}
sub courseloadpage {
my ($courseid) = @_;
my $startpage;
my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
[$courseid.':courseinit']);
my ($tmp) = %entry_settings;
unless ($tmp =~ /^error: 2 /) {
$startpage = $entry_settings{$courseid.':courseinit'};
}
if ($startpage eq '') {
if (exists($env{'environment.course_init_display'})) {
$startpage = $env{'environment.course_init_display'};
}
}
return $startpage;
}
sub update_session_roles {
my $then=$env{'user.login.time'};
my $refresh=$env{'user.refresh.time'};
if (!$refresh) {
$refresh = $then;
}
my $update = $env{'user.update.time'};
if (!$update) {
$update = $then;
}
my $now = time;
my %roleshash =
&Apache::lonnet::get_my_roles('','','userroles',
['active','future','previous'],
undef,undef,1);
my ($msg,@newsec,$oldsec,$currrole_expired,@changed_roles,
%changed_groups,%dbroles,%deletedroles,%allroles,%allgroups,
%userroles,%checkedgroup,%crprivs,$hasgroups,%rolechange,
%groupchange,%newrole,%newgroup,%customprivchg,%groups_roles,
@rolecodes);
my @possroles = ('cr','st','ta','ad','ep','in','co','cc');
my %courseroles;
foreach my $item (keys(%roleshash)) {
my ($uname,$udom,$role,$remainder) = split(/:/,$item,4);
my ($tstart,$tend) = split(/:/,$roleshash{$item});
my ($section,$group,@group_privs);
if ($role =~ m{^gr/(\w*)$}) {
$role = 'gr';
my $priv = $1;
next if ($tstart eq '-1');
if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
if ($priv ne '') {
push(@group_privs,$priv);
}
}
if ($remainder =~ /:/) {
(my $additional_privs,$group) =
($remainder =~ /^([\w:]+):([^:]+)$/);
if ($additional_privs ne '') {
if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
push(@group_privs,split(/:/,$additional_privs));
@group_privs = sort(@group_privs);
}
}
} else {
$group = $remainder;
}
} else {
$section = $remainder;
}
my $where = "/$udom/$uname";
if ($section ne '') {
$where .= "/$section";
} elsif ($group ne '') {
$where .= "/$group";
}
my $rolekey = "$role.$where";
my $envkey = "user.role.$rolekey";
$dbroles{$envkey} = 1;
if (($env{'request.role'} eq $rolekey) && ($role ne 'st')) {
if (&curr_role_status($tstart,$tend,$refresh,$now) ne 'active') {
$currrole_expired = 1;
}
}
if ($env{$envkey} eq '') {
my $status_in_db =
&curr_role_status($tstart,$tend,$now,$now);
&gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
if (($role eq 'st') && ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
if ($status_in_db eq 'active') {
if ($section eq '') {
push(@newsec,'none');
} else {
push(@newsec,$section);
}
}
} else {
unless (grep(/^\Q$role\E$/,@changed_roles)) {
push(@changed_roles,$role);
}
if ($status_in_db ne 'previous') {
if ($role eq 'gr') {
$newgroup{$rolekey} = $status_in_db;
if ($status_in_db eq 'active') {
unless (ref($courseroles{$udom}) eq 'HASH') {
%{$courseroles{$udom}} =
&Apache::lonnet::get_my_roles('','','userroles',
['active'],\@possroles,
[$udom],1);
}
&Apache::lonnet::get_groups_roles($udom,$uname,
$courseroles{$udom},
\@rolecodes,\%groups_roles);
}
} else {
$newrole{$rolekey} = $status_in_db;
}
}
}
} else {
my ($currstart,$currend) = split(/\./,$env{$envkey});
if ($role eq 'gr') {
if (&curr_role_status($currstart,$currend,$refresh,$update) ne 'previous') {
$hasgroups = 1;
}
}
if (($currstart ne $tstart) || ($currend ne $tend)) {
my $status_in_env =
&curr_role_status($currstart,$currend,$refresh,$update);
my $status_in_db =
&curr_role_status($tstart,$tend,$now,$now);
if ($status_in_env ne $status_in_db) {
if ($status_in_env eq 'active') {
if ($role eq 'st') {
if ($env{'request.role'} eq $rolekey) {
my $switchsection;
unless (ref($courseroles{$udom}) eq 'HASH') {
%{$courseroles{$udom}} =
&Apache::lonnet::get_my_roles('','','userroles',
['active'],
\@possroles,[$udom],1);
}
foreach my $crsrole (keys(%{$courseroles{$udom}})) {
if ($crsrole =~ /^\Q$uname\E:\Q$udom\E:st/) {
$switchsection = 1;
last;
}
}
if ($switchsection) {
if ($section eq '') {
$oldsec = 'none';
} else {
$oldsec = $section;
}
&gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
} else {
$currrole_expired = 1;
next;
}
}
}
unless ($rolekey eq $env{'request.role'}) {
if ($role eq 'gr') {
&Apache::lonnet::delete_env_groupprivs($where,\%courseroles,\@possroles);
} else {
&Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
&Apache::lonnet::delenv("user.priv.cm.$where",undef,['cm']);
}
&gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
}
} elsif ($status_in_db eq 'active') {
if (($role eq 'st') &&
($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
if ($section eq '') {
push(@newsec,'none');
} else {
push(@newsec,$section);
}
} elsif ($role eq 'gr') {
unless (ref($courseroles{$udom}) eq 'HASH') {
%{$courseroles{$udom}} =
&Apache::lonnet::get_my_roles('','','userroles',
['active'],
\@possroles,[$udom],1);
}
&Apache::lonnet::get_groups_roles($udom,$uname,
$courseroles{$udom},
\@rolecodes,\%groups_roles);
}
&gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
}
unless (grep(/^\Q$role\E$/,@changed_roles)) {
push(@changed_roles,$role);
}
if ($role eq 'gr') {
$groupchange{"/$udom/$uname"}{$group} = $status_in_db;
} else {
$rolechange{$rolekey} = $status_in_db;
}
}
} else {
if ($role eq 'gr') {
unless ($checkedgroup{$where}) {
my $status_in_db =
&curr_role_status($tstart,$tend,$refresh,$now);
if ($tstart eq '-1') {
$status_in_db = 'deleted';
}
unless (ref($courseroles{$udom}) eq 'HASH') {
%{$courseroles{$udom}} =
&Apache::lonnet::get_my_roles('','','userroles',
['active'],
\@possroles,[$udom],1);
}
if (ref($courseroles{$udom}) eq 'HASH') {
foreach my $item (keys(%{$courseroles{$udom}})) {
next unless ($item =~ /^\Q$uname\E/);
my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
my $area = '/'.$cdom.'/'.$cnum;
if ($crssec ne '') {
$area .= '/'.$crssec;
}
my $crsrolekey = $crsrole.'.'.$area;
my $currprivs = $env{'user.priv.'.$crsrole.'.'.$area.'.'.$where};
$currprivs =~ s/^://;
$currprivs =~ s/\&F$//;
my @curr_grp_privs = split(/\&F:/,$currprivs);
@curr_grp_privs = sort(@curr_grp_privs);
my @diffs;
if (@group_privs > 0 || @curr_grp_privs > 0) {
@diffs = &Apache::loncommon::compare_arrays(\@group_privs,\@curr_grp_privs);
}
if (@diffs == 0) {
last;
} else {
unless(grep(/^\Qgr\E$/,@rolecodes)) {
push(@rolecodes,'gr');
}
&gather_roleprivs(\%allroles,\%allgroups,
\%userroles,$where,$role,
$tstart,$tend,$status_in_db);
if ($status_in_db eq 'active') {
&Apache::lonnet::get_groups_roles($udom,$uname,
$courseroles{$udom},
\@rolecodes,\%groups_roles);
}
$changed_groups{$udom.'_'.$uname}{$group} = $status_in_db;
last;
}
}
}
$checkedgroup{$where} = 1;
}
} elsif ($role =~ /^cr/) {
my $status_in_db =
&curr_role_status($tstart,$tend,$refresh,$now);
my ($rdummy,$rest) = split(/\//,$role,2);
my %currpriv;
unless (exists($crprivs{$rest})) {
my ($rdomain,$rauthor,$rrole)=split(/\//,$rest);
my $homsvr=&Apache::lonnet::homeserver($rauthor,$rdomain);
if (&Apache::lonnet::hostname($homsvr) ne '') {
my ($rdummy,$roledef)=
&Apache::lonnet::get('roles',["rolesdef_$rrole"],
$rdomain,$rauthor);
if (($rdummy ne 'con_lost') && ($roledef ne '')) {
my $i = 0;
my @scopes = ('sys','dom','crs');
my @privs = split(/\_/,$roledef);
foreach my $priv (@privs) {
my ($blank,@prv) = split(/:/,$priv);
@prv = map { $_ .= (/\&\w+$/ ? '':'&F') } @prv;
if (@prv) {
$priv = ':'.join(':',sort(@prv));
}
$crprivs{$rest}{$scopes[$i]} = $priv;
$i++;
}
}
}
}
my $status_in_env =
&curr_role_status($currstart,$currend,$refresh,$update);
if ($status_in_env eq 'active') {
$currpriv{sys} = $env{"user.priv.$rolekey./"};
$currpriv{dom} = $env{"user.priv.$rolekey./$udom/"};
$currpriv{crs} = $env{"user.priv.$rolekey.$where"};
if (keys(%crprivs)) {
if (($crprivs{$rest}{sys} ne $currpriv{sys}) ||
($crprivs{$rest}{dom} ne $currpriv{dom})
||
($crprivs{$rest}{crs} ne $currpriv{crs})) {
&gather_roleprivs(\%allroles,\%allgroups,
\%userroles,$where,$role,
$tstart,$tend,$status_in_db);
unless (grep(/^\Q$role\E$/,@changed_roles)) {
push(@changed_roles,$role);
}
$customprivchg{$rolekey} = $status_in_env;
}
}
}
}
}
}
}
foreach my $envkey (keys(%env)) {
next unless ($envkey =~ /^user\.role\./);
next if ($dbroles{$envkey});
next if ($envkey eq 'user.role.'.$env{'request.role'});
my ($currstart,$currend) = split(/\./,$env{$envkey});
my $status_in_env =
&curr_role_status($currstart,$currend,$refresh,$update);
my ($rolekey) = ($envkey =~ /^user\.role\.(.+)$/);
my ($role,$rest)=split(m{\./},$rolekey,2);
$rest = '/'.$rest;
if (&Apache::lonnet::delenv($envkey,undef,[$role])) {
if ($status_in_env eq 'active') {
if ($role eq 'gr') {
&Apache::lonnet::delete_env_groupprivs($rest,\%courseroles,
\@possroles);
} else {
&Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
&Apache::lonnet::delenv("user.priv.cm.$rest",undef,['cm']);
}
unless (grep(/^\Q$role\E$/,@changed_roles)) {
push(@changed_roles,$role);
}
$deletedroles{$rolekey} = 1;
}
}
}
if (($oldsec) && (@newsec > 0)) {
if (@newsec > 1) {
$msg = '<p class="LC_warning">'.&mt('The section has changed for your current role. Log-out and log-in again to select a role for the new section.').'</p>';
} else {
my $newrole = $env{'request.role'};
if ($newsec[0] eq 'none') {
$newrole =~ s{(/[^/])$}{};
} elsif ($oldsec eq 'none') {
$newrole .= '/'.$newsec[0];
} else {
$newrole =~ s{([^/]+)$}{$newsec[0]};
}
my $coursedesc = $env{'course.'.$env{'request.course.id'}.'.description'};
my ($curr_role) = ($env{'request.role'} =~ m{^(\w+)\./$match_domain/$match_courseid});
my %temp=('logout_'.$env{'request.course.id'} => time);
&Apache::lonnet::put('email_status',\%temp);
&Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
&Apache::lonnet::appenv({"request.course.id" => '',
"request.course.fn" => '',
"request.course.uri" => '',
"request.course.sec" => '',
"request.role" => 'cm',
"request.role.adv" => $env{'user.adv'},
"request.role.domain" => $env{'user.domain'}});
my $rolename = &Apache::loncommon::plainname($curr_role);
$msg = '<p><form name="reselectrole" action="/adm/roles" method="post" />'.
'<input type="hidden" name="newrole" value="" />'.
'<input type="hidden" name="selectrole" value="1" />'.
'<span class="LC_info">'.
&mt('Your section has changed for your current [_1] role in [_2].',$rolename,$coursedesc).'</span><br />';
my $button = '<input type="button" name="sectionchanged" value="'.
&mt('Re-Select').'" onclick="javascript:enterrole(this.form,'."'$newrole','sectionchanged'".')" />';
if ($newsec[0] eq 'none') {
$msg .= &mt('[_1] to continue with your new section-less role.',$button);
} else {
$msg .= &mt('[_1] to continue with your new role in section ([_2]).',$button,$newsec[0]);
}
$msg .= '</form></p>';
}
} elsif ($currrole_expired) {
$msg .= '<p class="LC_warning">';
if (&Apache::loncommon::show_course()) {
$msg .= &mt('Your role in the current course has expired.');
} else {
$msg .= &mt('Your current role has expired.');
}
$msg .= '<br />'.&mt('However you can continue to use this role until you logout, click the "Re-Select" button, or your session has been idle for more than 24 hours.').'</p>';
}
&Apache::lonnet::set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
my ($curr_is_adv,$curr_role_adv,$curr_author,$curr_role_author);
$curr_author = $env{'user.author'};
if (($env{'request.role'} =~/^au/) || ($env{'request.role'} =~/^ca/) ||
($env{'request.role'} =~/^aa/)) {
$curr_role_author=1;
}
$curr_is_adv = $env{'user.adv'};
$curr_role_adv = $env{'request.role.adv'};
if (keys(%userroles) > 0) {
foreach my $role (@changed_roles) {
unless(grep(/^\Q$role\E$/,@rolecodes)) {
push(@rolecodes,$role);
}
}
unless(grep(/^\Qcm\E$/,@rolecodes)) {
push(@rolecodes,'cm');
}
&Apache::lonnet::appenv(\%userroles,\@rolecodes);
}
my %newenv;
if (&Apache::lonnet::is_advanced_user($env{'user.domain'},$env{'user.name'})) {
unless ($curr_is_adv) {
$newenv{'user.adv'} = 1;
}
} elsif ($curr_is_adv && !$curr_role_adv) {
&Apache::lonnet::delenv('user.adv');
}
my %authorroleshash =
&Apache::lonnet::get_my_roles('','','userroles',['active'],['au','ca','aa']);
if (keys(%authorroleshash)) {
unless ($curr_author) {
$newenv{'user.author'} = 1;
}
} elsif ($curr_author && !$curr_role_author) {
&Apache::lonnet::delenv('user.author');
}
if ($env{'request.course.id'}) {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my (@activecrsgroups,$crsgroupschanged);
if ($env{'request.course.groups'}) {
@activecrsgroups = split(/:/,$env{'request.course.groups'});
foreach my $item (keys(%deletedroles)) {
if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
if (grep(/^\Q$1\E$/,@activecrsgroups)) {
$crsgroupschanged = 1;
last;
}
}
}
}
unless ($crsgroupschanged) {
foreach my $item (keys(%newgroup)) {
if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
if ($newgroup{$item} eq 'active') {
$crsgroupschanged = 1;
last;
}
}
}
}
if ((ref($changed_groups{$env{'request.course.id'}}) eq 'HASH') ||
(ref($groupchange{"/$cdom/$cnum"}) eq 'HASH') ||
($crsgroupschanged)) {
my %grouproles = &Apache::lonnet::get_my_roles('','','userroles',
['active'],['gr'],[$cdom],1);
my @activegroups;
foreach my $item (keys(%grouproles)) {
next unless($item =~ /^\Q$cnum\E:\Q$cdom\E/);
my $group;
my ($crsn,$crsd,$role,$remainder) = split(/:/,$item,4);
if ($remainder =~ /:/) {
(my $other,$group) = ($remainder =~ /^([\w:]+):([^:]+)$/);
} else {
$group = $remainder;
}
if ($group ne '') {
push(@activegroups,$group);
}
}
$newenv{'request.course.groups'} = join(':',@activegroups);
}
}
if (keys(%newenv)) {
&Apache::lonnet::appenv(\%newenv);
}
if (!@changed_roles || !(keys(%changed_groups))) {
my ($rolesmsg,$groupsmsg);
if (!@changed_roles) {
if (&Apache::loncommon::show_course()) {
$rolesmsg = &mt('No new courses or communities');
} else {
$rolesmsg = &mt('No role changes');
}
}
if ($hasgroups && !(keys(%changed_groups)) && !(grep(/gr/,@changed_roles))) {
$groupsmsg = &mt('No changes in course/community groups');
}
if (!@changed_roles && !(keys(%changed_groups))) {
if (($msg ne '') || ($groupsmsg ne '')) {
$msg .= '<ul>';
if ($rolesmsg) {
$msg .= '<li>'.$rolesmsg.'</li>';
}
if ($groupsmsg) {
$msg .= '<li>'.$groupsmsg.'</li>';
}
$msg .= '</ul>';
} else {
$msg = ' <span class="LC_cusr_emph">'.$rolesmsg.'</span><br />';
}
return $msg;
}
}
my $changemsg;
if (@changed_roles > 0) {
if (keys(%newgroup) > 0) {
my $groupmsg;
my (%curr_groups,%groupdescs,$currcrs);
foreach my $item (sort(keys(%newgroup))) {
if (&is_active_course($item,$refresh,$update,\%roleshash)) {
if ($item =~ m{^gr\./($match_domain/$match_courseid)/(\w+)$}) {
my ($cdom,$cnum) = split(/\//,$1);
my $group = $2;
if ($currcrs ne $cdom.'_'.$cnum) {
if ($currcrs) {
$groupmsg .= '</ul><li>';
}
$groupmsg .= '<li><b>'.
$env{'course.'.$cdom.'_'.$cnum.'.description'}.'</b><ul>';
$currcrs = $cdom.'_'.$cnum;
}
my $groupdesc;
unless (ref($curr_groups{$cdom.'_'.$cnum}) eq 'HASH') {
%{$curr_groups{$cdom.'_'.$cnum}} =
&Apache::longroup::coursegroups($cdom,$cnum);
}
unless ((ref($groupdescs{$cdom.'_'.$cnum}) eq 'HASH') &&
($groupdescs{$cdom.'_'.$cnum}{$group})) {
my %groupinfo =
&Apache::longroup::get_group_settings($curr_groups{$cdom.'_'.$cnum}{$group});
$groupdescs{$cdom.'_'.$cnum}{$group} =
&unescape($groupinfo{'description'});
}
$groupdesc = $groupdescs{$cdom.'_'.$cnum}{$group};
if ($groupdesc) {
$groupmsg .= '<li>'.
&mt('[_1] with status: [_2].',
'<b>'.$groupdesc.'</b>',$newgroup{$item}).'</li>';
}
}
}
if ($groupmsg) {
$groupmsg .= '</ul></li>';
}
}
if ($groupmsg) {
$changemsg .= '<li>'.
&mt('Courses with new groups').'</li>'.
'<ul>'.$groupmsg.'</ul></li>';
}
}
if (keys(%newrole) > 0) {
my $newmsg;
foreach my $item (sort(keys(%newrole))) {
my $desc = &role_desc($item,$update,$refresh,$now);
if ($desc) {
$newmsg .= '<li>'.
&mt('[_1] with status: [_2].',
$desc,&mt($newrole{$item})).'</li>';
}
}
if ($newmsg) {
$changemsg .= '<li>'.&mt('New roles').
'<ul>'.$newmsg.'</ul>'.
'</li>';
}
}
if (keys(%customprivchg) > 0) {
my $privmsg;
foreach my $item (sort(keys(%customprivchg))) {
my $desc = &role_desc($item,$update,$refresh,$now);
if ($desc) {
$privmsg .= '<li>'.$desc.'</li>';
}
}
if ($privmsg) {
$changemsg .= '<li>'.
&mt('Custom roles with privilege changes').
'<ul>'.$privmsg.'</ul>'.
'</li>';
}
}
if (keys(%rolechange) > 0) {
my $rolemsg;
foreach my $item (sort(keys(%rolechange))) {
my $desc = &role_desc($item,$update,$refresh,$now);
if ($desc) {
$rolemsg .= '<li>'.
&mt('[_1] status now: [_2].',$desc,
$rolechange{$item}).'</li>';
}
}
if ($rolemsg) {
$changemsg .= '<li>'.
&mt('Existing roles with status changes').'</li>'.
'<ul>'.$rolemsg.'</ul>'.
'</li>';
}
}
if (keys(%deletedroles) > 0) {
my $delmsg;
foreach my $item (sort(keys(%deletedroles))) {
my $desc = &role_desc($item,$update,$refresh,$now);
if ($desc) {
$delmsg .= '<li>'.$desc.'</li>';
}
}
if ($delmsg) {
$changemsg .= '<li>'.
&mt('Existing roles now expired').'</li>'.
'<ul>'.$delmsg.'</ul>'.
'</li>';
}
}
}
if ((keys(%changed_groups) > 0) || (keys(%groupchange) > 0)) {
my $groupchgmsg;
foreach my $key (sort(keys(%changed_groups))) {
my $crs = 'gr/'.$key;
$crs =~ s/_/\//;
if (&is_active_course($crs,$refresh,$update,\%roleshash)) {
if (ref($changed_groups{$key}) eq 'HASH') {
my @showgroups;
foreach my $group (sort(keys(%{$changed_groups{$key}}))) {
if ($changed_groups{$key}{$group} eq 'active') {
push(@showgroups,$group);
}
}
if (@showgroups > 0) {
$groupchgmsg .= '<li>'.
&mt('Course: [_1], groups: [_2].',$key,
join(', ',@showgroups)).
'</li>';
}
}
}
}
if (keys(%groupchange) > 0) {
$groupchgmsg .= '<li>'.
&mt('Existing course/community groups with status changes').'</li>'.
'<ul>';
foreach my $crs (sort(keys(%groupchange))) {
my $cid = $crs;
$cid=~s{^/}{};
$cid=~s{/}{_};
my $crsdesc = $env{'course.'.$cid.'.description'};
my $cdom = $env{'course.'.$cid.'.domain'};
my $cnum = $env{'course.'.$cid.'.num'};
my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
my %groupdesc;
if (ref($groupchange{$crs}) eq 'HASH') {
$groupchgmsg .= '<li>'.&mt('Course/Community: [_1]','<b>'.$crsdesc.'</b><ul>');
foreach my $group (sort(keys(%{$groupchange{$crs}}))) {
unless ($groupdesc{$group}) {
my %groupinfo = &Apache::longroup::get_group_settings($curr_groups{$group});
$groupdesc{$group} = &unescape($groupinfo{'description'});
}
$groupchgmsg .= '<li>'.&mt('Group: [_1] status now: [_2].','<b>'.$groupdesc{$group}.'</b>',$groupchange{$crs}{$group}).'</li>';
}
$groupchgmsg .= '</ul></li>';
}
}
$groupchgmsg .= '</ul></li>';
}
if ($groupchgmsg) {
$changemsg .= '<li>'.
&mt('Courses with changes in groups').'</li>'.
'<ul>'.$groupchgmsg.'</ul></li>';
}
}
if ($changemsg) {
$msg .= '<ul>'.$changemsg.'</ul>';
} else {
if (&Apache::loncommon::show_course()) {
$msg = &mt('No new courses or communities');
} else {
$msg = &mt('No role changes');
}
}
return $msg;
}
sub role_desc {
my ($item,$update,$refresh,$now) = @_;
my ($where,$trolecode,$role,$tstatus,$tend,$tstart,$twhere,
$trole,$tremark);
&Apache::lonnet::role_status('user.role.'.$item,$update,$refresh,
$now,\$role,\$where,\$trolecode,
\$tstatus,\$tstart,\$tend);
return unless ($role);
if ($role =~ /^cr\//) {
my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
$tremark = &mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
}
$trole=Apache::lonnet::plaintext($role);
my ($tdom,$trest,$tsection)=
split(/\//,Apache::lonnet::declutter($where));
if (($role eq 'ca') || ($role eq 'aa')) {
my $home = &Apache::lonnet::homeserver($trest,$tdom);
$home = &Apache::lonnet::hostname($home);
$twhere=&mt('User').': '.$trest.' '.&mt('Domain').
': '.$tdom.' '.&mt('Server').': '.$home;
} elsif ($role eq 'au') {
my $home = &Apache::lonnet::homeserver
($env{'user.name'},$env{'user.domain'});
$home = &Apache::lonnet::hostname($home);
$twhere=&mt('Domain').': '.$tdom.' '.&mt('Server').
': '.$home;
} elsif ($trest) {
my $tcourseid=$tdom.'_'.$trest;
my $crstype = &Apache::loncommon::course_type($tcourseid);
$trole = &Apache::lonnet::plaintext($role,$crstype,$tcourseid);
if ($env{'course.'.$tcourseid.'.description'}) {
$twhere=$env{'course.'.$tcourseid.'.description'};
} else {
my %newhash=&Apache::lonnet::coursedescription($tcourseid);
if (%newhash) {
$twhere=$newhash{'description'};
} else {
$twhere=&mt('Currently not available');
}
}
if ($tsection) {
$twhere.= ' '.&mt('Section').': '.$tsection;
}
if ($role ne 'st') {
$twhere.= ' '.&mt('Domain').': '.$tdom;
}
} elsif ($tdom) {
$twhere = &mt('Domain').': '.$tdom;
}
my $output;
if ($trole) {
$output = $trole;
if ($twhere) {
$output .= " -- $twhere";
}
if ($tremark) {
$output .= '<br />'.$tremark;
}
}
return $output;
}
sub curr_role_status {
my ($start,$end,$refresh,$update) = @_;
if (($start) && ($start<0)) { return 'deleted' };
my $status = 'active';
if (($end) && ($end<=$update)) {
$status = 'previous';
}
if (($start) && ($refresh<$start)) {
$status = 'future';
}
return $status;
}
sub gather_roleprivs {
my ($allroles,$allgroups,$userroles,$area,$role,$tstart,$tend,$status) = @_;
return unless ((ref($allroles) eq 'HASH') && (ref($allgroups) eq 'HASH') && (ref($userroles) eq 'HASH'));
if (($area ne '') && ($role ne '')) {
&Apache::lonnet::userrolelog($role,$env{'user.name'},$env{'user.domain'},
$area,$tstart,$tend);
my $spec=$role.'.'.$area;
$userroles->{'user.role.'.$spec} = $tstart.'.'.$tend;
my ($tdummy,$tdomain,$trest)=split(/\//,$area);
if ($status eq 'active') {
if ($role =~ /^cr\//) {
&Apache::lonnet::custom_roleprivs($allroles,$role,$tdomain,$trest,$spec,$area);
} elsif ($role eq 'gr') {
my %rolehash = &Apache::lonnet::get('roles',[$area.'_'.$role],
$env{'user.domain'},
$env{'user.name'});
my ($trole) = split(/_/,$rolehash{$area.'_'.$role},2);
(undef,my $group_privs) = split(/\//,$trole);
$group_privs = &unescape($group_privs);
&Apache::lonnet::group_roleprivs($allgroups,$area,$group_privs,$tend,$tstart);
} else {
&Apache::lonnet::standard_roleprivs($allroles,$role,$tdomain,$spec,$trest,$area);
}
}
}
return;
}
sub is_active_course {
my ($rolekey,$refresh,$update,$roleshashref) = @_;
return unless(ref($roleshashref) eq 'HASH');
my ($role,$cdom,$cnum) = split(/\//,$rolekey);
my $is_active;
foreach my $key (keys(%{$roleshashref})) {
if ($key =~ /^\Q$cnum\E:\Q$cdom\E:/) {
my ($tstart,$tend) = split(/:/,$roleshashref->{$key});
my $status = &curr_role_status($tstart,$tend,$refresh,$update);
if ($status eq 'active') {
$is_active = 1;
last;
}
}
}
return $is_active;
}
sub get_roles_functions {
my ($rolescount,$cattype) = @_;
my @links;
push(@links,["javascript:rolesView('doupdate');",'start-here-22x22',&mt('Check for changes')]);
if ($env{'environment.canrequest.author'}) {
unless (&Apache::loncoursequeueadmin::is_active_author()) {
push(@links,["javascript:rolesView('requestauthor');",'list-add-22x22',&mt('Request author role')]);
}
}
if (($rolescount > 3) || ($env{'environment.recentroles'})) {
push(@links,['/adm/preferences?action=changerolespref&returnurl=/adm/roles','role_hotlist-22x22',&mt('Hotlist')]);
}
if (&Apache::lonmenu::check_for_rcrs()) {
push(@links,['/adm/requestcourse','rcrs-22x22',&mt('Request course')]);
}
if ($env{'form.state'} eq 'queued') {
push(@links,["javascript:rolesView('noqueued');",'selfenrl-queue-22x22',&mt('Hide queued')]);
} else {
push(@links,["javascript:rolesView('queued');",'selfenrl-queue-22x22',&mt('Show queued')]);
}
if ($env{'user.adv'}) {
if ($env{'form.display'} eq 'showall') {
push(@links,["javascript:rolesView('noshowall');",'edit-redo-22x22',&mt('Exclude expired')]);
} else {
push(@links,["javascript:rolesView('showall');",'edit-undo-22x22',&mt('Include expired')]);
}
}
unless ($cattype eq 'none') {
push(@links,['/adm/coursecatalog','ccat-22x22',&mt('Course catalog')]);
}
my $funcs;
if ($env{'browser.mobile'}) {
my @functions;
foreach my $link (@links) {
push(@functions,[$link->[0],$link->[2]]);
}
my $title = 'Display options';
if ($env{'user.adv'}) {
$title = 'Roles options';
}
$funcs = &Apache::lonmenu::create_submenu('','',$title,\@functions,1,'LC_breadcrumbs_hoverable');
$funcs = '<ol class="LC_primary_menu LC_floatright">'.$funcs.'</ol>';
} else {
$funcs = &Apache::lonhtmlcommon::start_funclist();
foreach my $link (@links) {
$funcs .= &Apache::lonhtmlcommon::add_item_funclist(
'<a href="'.$link->[0].'" class="LC_menubuttons_link">'.
'<img src="/res/adm/pages/'.$link->[1].'.png" class="LC_icon" alt="'.$link->[2].'" />'.
$link->[2].'</a>');
}
$funcs .= &Apache::lonhtmlcommon::end_funclist();
$funcs = &Apache::loncommon::head_subbox($funcs);
}
return $funcs;
}
sub get_queued {
my ($output,%reqcrs);
my ($types,$typenames) = &Apache::loncommon::course_types();
my %statusinfo = &Apache::lonnet::dump('courserequests',$env{'user.domain'},
$env{'user.name'},'^status:');
foreach my $key (keys(%statusinfo)) {
next unless (($statusinfo{$key} eq 'approval') || ($statusinfo{$key} eq 'pending'));
(undef,my($cdom,$cnum)) = split(/:/,$key);
my $requestkey = $cdom.'_'.$cnum;
if ($requestkey =~ /^($match_domain)_($match_courseid)$/) {
my %history = &Apache::lonnet::restore($requestkey,'courserequests',
$env{'user.domain'},$env{'user.name'});
next if ((exists($history{'status'})) && ($history{'status'} eq 'created'));
my $reqtime = $history{'reqtime'};
my $lastupdate = $history{'timestamp'};
my $showtype = $history{'crstype'};
if (defined($typenames->{$history{'crstype'}})) {
$showtype = $typenames->{$history{'crstype'}};
}
my $description;
if (ref($history{'details'}) eq 'HASH') {
$description = $history{details}{'cdescr'};
}
@{$reqcrs{$reqtime}} = ($description,$showtype);
}
}
my @sortedtimes = sort {$a <=> $b} (keys(%reqcrs));
if (@sortedtimes > 0) {
$output .= '<p><b>'.&mt('Course/Community requests').'</b><br />'.
&Apache::loncommon::start_data_table().
&Apache::loncommon::start_data_table_header_row().
'<th>'.&mt('Date requested').'</th>'.
'<th>'.&mt('Course title').'</th>'.
'<th>'.&mt('Course type').'</th>';
&Apache::loncommon::end_data_table_header_row();
foreach my $reqtime (@sortedtimes) {
next unless (ref($reqcrs{$reqtime}) eq 'ARRAY');
$output .= &Apache::loncommon::start_data_table_row().
'<td>'.&Apache::lonlocal::locallocaltime($reqtime).'</td>'.
'<td>'.join('</td><td>',@{$reqcrs{$reqtime}}).'</td>'.
&Apache::loncommon::end_data_table_row();
}
$output .= &Apache::loncommon::end_data_table().
'<br /></p>';
}
my $queuedselfenroll = &Apache::loncoursequeueadmin::queued_selfenrollment(1);
if ($queuedselfenroll) {
$output .= '<p><b>'.&mt('Enrollment requests').'</b><br />'.
$queuedselfenroll.'<br /></p>';
}
if ($env{'environment.canrequest.author'}) {
unless (&Apache::loncoursequeueadmin::is_active_author()) {
my $requestauthor;
my ($status,$timestamp) = split(/:/,$env{'environment.requestauthorqueued'});
if (($status eq 'approval') || ($status eq 'approved')) {
$output .= '<p><b>'.&mt('Author role request').'</b><br />';
if ($status eq 'approval') {
$output .= &mt('A request for Authoring Space submitted on [_1] is awaiting approval',
&Apache::lonlocal::locallocaltime($timestamp));
} elsif ($status eq 'approved') {
my %roleshash =
&Apache::lonnet::get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',
['active'],['au'],[$env{'user.domain'}]);
if (keys(%roleshash)) {
$output .= '<span class="LC_info">'.
&mt('Your request for an author role has been approved.').'<br />'.
&mt('Use the "Check for changes" link to update your list of roles.').
'</span>';
}
}
$output .= '</p>';
}
}
}
unless ($output) {
if ($env{'environment.canrequest.author'} || $env{'environment.canrequest.official'} ||
$env{'environment.canrequest.unofficial'} || $env{'environment.canrequest.community'}) {
$output = &mt('No requests for courses, communities or authoring currently queued');
} else {
$output = &mt('No enrollment requests currently queued awaiting approval');
}
}
return '<div class="LC_left_float"><fieldset><legend>'.&mt('Queued requests').'</legend>'.
$output.'</fieldset></div><br clear="all" />';
}
sub process_lti {
my ($r,$cdom,$cnum) = @_;
my %lti = &Apache::lonnet::get_domain_lti($cdom,'provider');
my $uriscope = &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
$cdom,$cnum);
my $lonhost = $r->dir_config('lonHostID');
my $internet_names = &Apache::lonnet::get_internet_names($lonhost);
if ($env{'request.lti.rosterid'} &&
$env{'request.lti.rosterurl'}) {
if (ref($lti{$env{'request.lti.login'}}) eq 'HASH') {
if ($lti{$env{'request.lti.login'}}{'roster'}) {
my @lcroles = ('in','ta','ep','st');
my @possibleroles;
foreach my $role (@lcroles) {
if (&Apache::lonnet::allowed('c'.$role,"$cdom/$cnum")) {
push(@possibleroles,$role);
}
}
my $owner = $env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'};
if ($owner eq $env{'user.name'}.':'.$env{'user.domain'}) {
my $crstype = &Apache::loncommon::course_type($cdom.'_'.$cnum);
if ($crstype eq 'Community') {
unshift(@possibleroles,'co');
} else {
unshift(@possibleroles,'cc');
}
}
if (@possibleroles) {
push(@{$rosterupdates},{cid => $cdom.'_'.$cnum,
lti => $env{'request.lti.login'},
ltiref => $lti{$env{'request.lti.login'}},
id => $env{'request.lti.rosterid'},
url => $env{'request.lti.rosterurl'},
sourcecrs => $env{'request.lti.sourcecrs'},
uriscope => $uriscope,
possroles => \@possibleroles,
intdoms => $internet_names,
});
unless ($registered_cleanup) {
my $handlers = $r->get_handlers('PerlCleanupHandler');
$r->set_handlers('PerlCleanupHandler' =>
[\<ienroll,@{$handlers}]);
$registered_cleanup=1;
}
}
}
}
}
if ($env{'request.lti.passbackid'} &&
$env{'request.lti.passbackurl'}) {
if (ref($lti{$env{'request.lti.login'}}) eq 'HASH') {
if ($lti{$env{'request.lti.login'}}{'passback'}) {
my ($pbnum,$error) =
&LONCAPA::ltiutils::store_passbackurl($env{'request.lti.login'},
$env{'request.lti.passbackurl'},
$cdom,$cnum);
if ($pbnum eq '') {
$pbnum = $env{'request.lti.passbackurl'};
}
&Apache::lonnet::put('nohist_'.$cdom.'_'.$cnum.'_passback',
{"$uriscope\0$env{'request.lti.sourcecrs'}\0$env{'request.lti.login'}" =>
"$pbnum\0$env{'request.lti.passbackid'}"});
}
}
}
return;
}
sub ltienroll {
if (ref($rosterupdates) eq 'ARRAY') {
foreach my $item (@{$rosterupdates}) {
if (ref($item) eq 'HASH') {
&LONCAPA::ltiutils::batchaddroster($item);
}
}
}
}
1;
__END__
=head1 NAME
Apache::lonroles - User Roles Screen
=head1 SYNOPSIS
Invoked by /etc/httpd/conf/srm.conf:
<Location /adm/roles>
PerlAccessHandler Apache::lonacc
SetHandler perl-script
PerlHandler Apache::lonroles
ErrorDocument 403 /adm/login
ErrorDocument 500 /adm/errorhandler
</Location>
=head1 OVERVIEW
=head2 Choosing Roles
C<lonroles> is a handler that allows a user to switch roles in
mid-session. LON-CAPA attempts to work with "No Role Specified", the
default role that a user has before selecting a role, as widely as
possible, but certain handlers for example need specification which
course they should act on, etc. Both in this scenario, and when the
handler determines via C<lonnet>'s C<&allowed> function that a certain
action is not allowed, C<lonroles> is used as error handler. This
allows the user to select another role which may have permission to do
what they were trying to do.
=begin latex
\begin{figure}
\begin{center}
\includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
\caption{\label{Sample_Roles_Screen}Sample Roles Screen}
\end{center}
\end{figure}
=end latex
=head2 Role Initialization
The privileges for a user are established at login time and stored in the session environment. As a consequence, a new role does not become active till the next login. Handlers are able to query for privileges using C<lonnet>'s C<&allowed> function. When a user first logs in, their role is the "common" role, which means that they have the sum of all of their privileges. During a session it might become necessary to choose a particular role, which as a consequence also limits the user to only the privileges in that particular role.
=head1 INTRODUCTION
This module enables a user to select what role he wishes to
operate under (instructor, student, teaching assistant, course
coordinator, etc). These roles are pre-established by the actions
of upper-level users.
This is part of the LearningOnline Network with CAPA project
described at http://www.lon-capa.org.
=head1 HANDLER SUBROUTINE
This routine is called by Apache and mod_perl.
=over 4
=item *
Roles Initialization (yes/no)
=item *
Get Error Message from Environment
=item *
Who is this?
=item *
Generate Page Output
=item *
Choice or no choice
=item *
Table
=item *
Privileges
=back
=cut
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