# The LearningOnline Network with CAPA
# User Roles Screen
# (Directory Indexer
# (Login Screen
# 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer)
# 11/23 Gerd Kortemeyer)
# 1/14,03/06,06/01,07/22,07/24,07/25,
# 09/04,09/06,09/28,09/29,09/30,10/2,10/5,10/26,10/28,
# 12/08,12/28,
# 01/15/01 Gerd Kortemeyer
# 02/27/01 Scott Harrison
# 03/02,05/03,05/25,05/30,06/01,07/06,08/06 Gerd Kortemeyer
package Apache::lonroles;
use strict;
use Apache::lonnet();
use Apache::lonuserstate();
use Apache::Constants qw(:common);
use Apache::File();
use Apache::lonmenu;
use Apache::loncommon;
sub handler {
my $r = shift;
my $now=time;
my $then=$ENV{'user.login.time'};
my $envkey;
# ================================================================== Roles Init
if ($ENV{'form.selectrole'}) {
&Apache::lonnet::appenv("request.course.id" => '',
"request.course.fn" => '',
"request.course.uri" => '',
"request.course.sec" => '',
"request.role" => 'cm');
foreach $envkey (keys %ENV) {
if ($envkey=~/^user\.role\./) {
my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
my $where=join('.',@pwhere);
my $trolecode=$role.'.'.$where;
if ($ENV{'form.'.$trolecode}) {
my ($tstart,$tend)=split(/\./,$ENV{$envkey});
my $tstatus='is';
if ($tstart) {
if ($tstart>$then) {
$tstatus='future';
}
}
if ($tend) {
if ($tend<$then) { $tstatus='expired'; }
if ($tend<$now) { $tstatus='will_not'; }
}
if ($tstatus eq 'is') {
$where=~s/^\///;
my ($cdom,$cnum,$csec)=split(/\//,$where);
&Apache::lonnet::appenv('request.role' => $trolecode,
'request.course.sec' => $csec);
my $msg='Entering course ...';
if (($cnum) && ($role ne 'ca')) {
my ($furl,$ferr)=
&Apache::lonuserstate::readmap($cdom.'/'.$cnum);
if (($ENV{'form.orgurl'}) &&
($ENV{'form.orgurl'}!~/^\/adm\/flip/)) {
$r->internal_redirect($ENV{'form.orgurl'});
return OK;
} else {
unless ($ENV{'request.course.id'}) {
&Apache::lonnet::appenv(
"request.course.id" => $cdom.'_'.$cnum);
$furl='/adm/notfound.html';
$msg=
'<h1><font color=red>Could not initialize top-level map.</font></h1>';
}
$r->content_type('text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
my $swinfo=&Apache::lonmenu::rawconfig;
print (<<ENDREDIR);
<head><title>Entering Course</title>
<meta HTTP-EQUIV="Refresh" CONTENT="1; url=$furl">
</head>
<html>
<body bgcolor="#FFFFFF">
<script>
$swinfo
</script>
$msg
</body>
</html>
ENDREDIR
return OK;
}
}
}
}
}
}
}
# =============================================================== No Roles Init
$r->content_type('text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
return OK if $r->header_only;
my $swinfo=&Apache::lonmenu::rawconfig;
$r->print(<<ENDHEADER);
<html>
<head>
<title>LON-CAPA User Roles</title>
</head><body bgcolor="#FFFFFF">
<script>
$swinfo
window.focus();
</script>
ENDHEADER
# ------------------------------------------ Get Error Message from Environment
my ($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);
}
# ---------------------------------------------------------------- Who is this?
my $advanced=0;
foreach $envkey (keys %ENV) {
if ($envkey=~/^user\.role\./) {
my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
if ($role ne 'st') { $advanced=1; }
}
}
# -------------------------------------------------------- Generate Page Output
# --------------------------------------------------------------- Error Header?
if ($error) {
$r->print("<h1>LON-CAPA Access Control</h1>");
$r->print("<hr><pre>Access : ".
Apache::lonnet::plaintext($priv)."\n");
$r->print("Resource: $fn\n");
$r->print("Action : $msg\n</pre><hr>");
} else {
$r->print("<h1>LON-CAPA User Roles</h1>");
if ($ENV{'user.error.msg'}) {
$r->print(
'<h3><font color=red>You need to choose another user role or '.
'enter a specific course for this function</font></h3>');
}
}
# -------------------------------------------------------- Choice or no choice?
if ($nochoose) {
if ($advanced) {
$r->print("<h2>Assigned User Roles</h2>\n");
} else {
$r->print("<h2>Sorry ...</h2>\nThis resource might be part of");
if ($ENV{'request.course.id'}) {
$r->print(' another');
} else {
$r->print(' a certain');
}
$r->print(' course.</body></html>');
return OK;
}
} else {
if ($advanced) {
$r->print("<h2>Select a User Role</h2>\n");
} else {
$r->print("<h2>Enter a Course</h2>\n");
}
if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
$fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
}
$r->print('<form method=post action="'.(($fn)?$fn:$r->uri).'">');
$r->print('<input type=hidden name=orgurl value="'.$fn.'">');
$r->print('<input type=hidden name=selectrole value=1>');
}
$r->print('<br>Show all roles: <input type=checkbox name=showall');
if ($ENV{'form.showall'}) { $r->print(' checked'); }
$r->print('><input type=submit value="Display"><br>');
# ----------------------------------------------------------------------- Table
$r->print('<table><tr>');
unless ($nochoose) { $r->print('<th> </th>'); }
$r->print('<th>User Role</th><th colspan=2>Extent</th>'.
'<th>Start</th><th>End</th><th>Remark</th></tr>'."\n");
foreach $envkey (sort keys %ENV) {
if ($envkey=~/^user\.role\./) {
my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
my $where=join('.',@pwhere);
my $trolecode=$role.'.'.$where;
my ($tstart,$tend)=split(/\./,$ENV{$envkey});
my $tremark='';
my $tstatus='is';
my $tpstart=' ';
my $tpend=' ';
if ($tstart) {
if ($tstart>$then) {
$tstatus='future';
if ($tstart<$now) { $tstatus='will'; }
}
$tpstart=localtime($tstart);
}
if ($tend) {
if ($tend<$then) {
$tstatus='expired';
} elsif ($tend<$now) {
$tstatus='will_not';
}
$tpend=localtime($tend);
}
if ($ENV{'request.role'} eq $trolecode) {
$tstatus='selected';
}
my $tbg;
if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
($ENV{'form.showall'})) {
if ($tstatus eq 'is') {
$tbg='#77FF77';
} elsif ($tstatus eq 'future') {
$tbg='#FFFF77';
} elsif ($tstatus eq 'will') {
$tbg='#FFAA77';
$tremark.='Active at next login. ';
} elsif ($tstatus eq 'expired') {
$tbg='#FF7777';
} elsif ($tstatus eq 'will_not') {
$tbg='#AAFF77';
$tremark.='Expired after logout. ';
} elsif ($tstatus eq 'selected') {
$tbg='#11CC55';
$tremark.='Currently selected. ';
}
my $trole;
if ($role =~ /^cr\//) {
my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
$tremark.='<br>Defined by '.$rauthor.' at '.$rdomain.'.';
$trole=$rrole;
} else {
$trole=Apache::lonnet::plaintext($role);
}
my $ttype;
my $twhere;
my ($tdom,$trest,$tsection)=
split(/\//,Apache::lonnet::declutter($where));
if ($trest) {
if ($role eq 'ca') {
$ttype='Construction Space';
$twhere='User: '.$trest.'<br>Domain: '.$tdom;
$ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca';
} else {
$ttype='Course';
if ($tsection) {
$ttype.='<br>Section/Group: '.$tsection;
}
my $tcourseid=$tdom.'_'.$trest;
if ($ENV{'course.'.$tcourseid.'.description'}) {
$twhere=$ENV{'course.'.$tcourseid.'.description'};
} else {
my %newhash=Apache::lonnet::coursedescription($tcourseid);
if (%newhash) {
$twhere=$newhash{'description'};
} else {
$twhere='Currently not available';
$ENV{'course.'.$tcourseid.'.description'}=$twhere;
}
}
}
} elsif ($tdom) {
$ttype='Domain';
$twhere=$tdom;
} else {
$ttype='System';
$twhere='system wide';
}
$r->print('<tr bgcolor='.$tbg.'>');
unless ($nochoose) {
if ($tstatus eq 'is') {
$r->print('<td><input type=submit value=Select name="'.
$trolecode.'"></td>');
} elsif ($ENV{'user.adv'}) {
$r->print(
'<td><input type=submit value="Re-Initialize" name="'.
$trolecode.'"></td>');
} else {
$r->print('<td> </td>');
}
}
$r->print('<td>'.$trole.'</td><td>'.
$ttype.'</td><td>'.$twhere.'</td><td>'.$tpstart.
'</td><td>'.$tpend.
'</td><td>'.$tremark.' </td></tr>'."\n");
}
}
}
my $tremark='';
if ($ENV{'request.role'} eq 'cm') {
$r->print('<tr bgcolor="#11CC55">');
$tremark='Currently selected.';
} else {
$r->print('<tr bgcolor="#77FF77">');
}
unless ($nochoose) {
if ($ENV{'request.role'} ne 'cm') {
$r->print('<td><input type=submit value=Select name="cm"></td>');
} else {
$r->print('<td> </td>');
}
}
$r->print('<td colspan=5>No role specified'.
'</td><td>'.$tremark.' </td></tr>'."\n");
$r->print('</table>');
unless ($nochoose) {
$r->print("</form>\n");
}
# ------------------------------------------------------------ Privileges Info
if ($advanced) {
$r->print('<hr><h2>Current Privileges</h2>');
foreach $envkey (sort keys %ENV) {
if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
my $where=$envkey;
$where=~s/^user\.priv\.$ENV{'request.role'}\.//;
my $ttype;
my $twhere;
my ($tdom,$trest,$tsec)=
split(/\//,Apache::lonnet::declutter($where));
if ($trest) {
if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
$ttype='Construction Space';
$twhere='User: '.$trest.', Domain: '.$tdom;
} else {
$ttype='Course';
$twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
if ($tsec) {
$twhere.=' (Section/Group: '.$tsec.')';
}
}
} elsif ($tdom) {
$ttype='Domain';
$twhere=$tdom;
} else {
$ttype='System';
$twhere='/';
}
$r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
map {
if ($_) {
my ($prv,$restr)=split(/\&/,$_);
my $trestr='';
if ($restr ne 'F') {
my $i;
$trestr.=' (';
for ($i=0;$i<length($restr);$i++) {
$trestr.=
Apache::lonnet::plaintext(substr($restr,$i,1));
if ($i<length($restr)-1) { $trestr.=', '; }
}
$trestr.=')';
}
$r->print('<li>'.Apache::lonnet::plaintext($prv).$trestr.
'</li>');
}
} sort split(/:/,$ENV{$envkey});
$r->print('</ul>');
}
}
}
$r->print("</body></html>\n");
return OK;
}
1;
__END__
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