version 1.52, 2003/02/13 18:11:26
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version 1.67, 2003/09/11 20:03:28
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Line 50 use Apache::Constants qw(:common);
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Line 50 use Apache::Constants qw(:common);
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use Apache::File(); |
use Apache::File(); |
use Apache::lonmenu; |
use Apache::lonmenu; |
use Apache::loncommon; |
use Apache::loncommon; |
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use Apache::lonannounce; |
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sub redirect_user { |
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my ($r,$title,$url,$msg) = @_; |
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$msg = $title if (! defined($msg)); |
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$r->content_type('text/html'); |
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&Apache::loncommon::no_cache($r); |
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$r->send_http_header; |
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my $swinfo=&Apache::lonmenu::rawconfig(); |
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my $bodytag=&Apache::loncommon::bodytag('Switching Role'); |
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$r->print (<<ENDREDIR); |
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<head><title>$title</title> |
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<meta HTTP-EQUIV="Refresh" CONTENT="1; url=$url"> |
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</head> |
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<html> |
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$bodytag |
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<script> |
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$swinfo |
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</script> |
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<h1>$msg</h1> |
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</body> |
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</html> |
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ENDREDIR |
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return; |
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} |
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sub handler { |
sub handler { |
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Line 67 sub handler {
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Line 92 sub handler {
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my %temp=('logout_'.$ENV{'request.course.id'} => time); |
my %temp=('logout_'.$ENV{'request.course.id'} => time); |
&Apache::lonnet::put('email_status',\%temp); |
&Apache::lonnet::put('email_status',\%temp); |
} |
} |
&Apache::lonnet::appenv("request.course.id" => '', |
&Apache::lonnet::appenv("request.course.id" => '', |
"request.course.fn" => '', |
"request.course.fn" => '', |
"request.course.uri" => '', |
"request.course.uri" => '', |
"request.course.sec" => '', |
"request.course.sec" => '', |
"request.role" => 'cm', |
"request.role" => 'cm', |
"request.role.domain" => $ENV{'user.domain'}); |
"request.role.adv" => $ENV{'user.adv'}, |
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"request.role.domain" => $ENV{'user.domain'}); |
foreach $envkey (keys %ENV) { |
foreach $envkey (keys %ENV) { |
next if ($envkey!~/^user\.role\./); |
next if ($envkey!~/^user\.role\./); |
my (undef,undef,$role,@pwhere)=split(/\./,$envkey); |
my (undef,undef,$role,@pwhere)=split(/\./,$envkey); |
my $where=join('.',@pwhere); |
my $where=join('.',@pwhere); |
my $trolecode=$role.'.'.$where; |
my $trolecode=$role.'.'.$where; |
if ($ENV{'form.'.$trolecode}) { |
if ($ENV{'form.'.$trolecode}) { |
my ($tstart,$tend)=split(/\./,$ENV{$envkey}); |
my ($tstart,$tend)=split(/\./,$ENV{$envkey}); |
my $tstatus='is'; |
my $tstatus='is'; |
if ($tstart) { |
if ($tstart) { |
if ($tstart>$then) { |
if ($tstart>$then) { |
$tstatus='future'; |
$tstatus='future'; |
} |
} |
} |
} |
if ($tend) { |
if ($tend) { |
if ($tend<$then) { $tstatus='expired'; } |
if ($tend<$then) { $tstatus='expired'; } |
if ($tend<$now) { $tstatus='will_not'; } |
if ($tend<$now) { $tstatus='will_not'; } |
} |
} |
if ($tstatus eq 'is') { |
if ($tstatus eq 'is') { |
$where=~s/^\///; |
$where=~s/^\///; |
my ($cdom,$cnum,$csec)=split(/\//,$where); |
my ($cdom,$cnum,$csec)=split(/\//,$where); |
&Apache::lonnet::appenv('request.role' => $trolecode, |
# check for keyed access |
'request.role.domain' => $cdom, |
if (($role eq 'st') && |
'request.course.sec' => $csec); |
($ENV{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) { |
my $msg='Entering course ...'; |
unless (&Apache::lonnet::validate_access_key( |
if (($cnum) && ($role ne 'ca')) { |
$ENV{'environment.key.'.$cdom.'_'.$cnum}, |
my ($furl,$ferr)= |
$cdom,$cnum)) { |
&Apache::lonuserstate::readmap($cdom.'/'.$cnum); |
# there is no valid key |
if (($ENV{'form.orgurl'}) && |
if ($ENV{'form.newkey'}) { |
($ENV{'form.orgurl'}!~/^\/adm\/flip/)) { |
# student attempts to register a new key |
$r->internal_redirect($ENV{'form.orgurl'}); |
} else { |
return OK; |
# print form to enter a new key |
} else { |
$r->content_type('text/html'); |
unless ($ENV{'request.course.id'}) { |
&Apache::loncommon::no_cache($r); |
&Apache::lonnet::appenv( |
$r->send_http_header; |
"request.course.id" => $cdom.'_'.$cnum); |
my $swinfo=&Apache::lonmenu::rawconfig(); |
$furl='/adm/notfound.html'; |
my $bodytag=&Apache::loncommon::bodytag |
$msg= |
('Enter Access Key to Unlock this Course'); |
'<h1><font color=red>Could not initialize top-level map.</font></h1>'; |
$r->print(<<ENDENTERKEY); |
} |
<head><title>Entering Course Access Key</title> |
$r->content_type('text/html'); |
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&Apache::loncommon::no_cache($r); |
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$r->send_http_header; |
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my $swinfo=&Apache::lonmenu::rawconfig(); |
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my $bodytag=&Apache::loncommon::bodytag('Switching Role'); |
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print (<<ENDREDIR); |
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<head><title>Entering Course</title> |
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<meta HTTP-EQUIV="Refresh" CONTENT="1; url=$furl"> |
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</head> |
</head> |
<html> |
<html> |
$bodytag |
$bodytag |
<script> |
<script> |
$swinfo |
$swinfo |
</script> |
</script> |
<h1>$msg</h1> |
<form method="post"> |
</body> |
<input type="hidden" name="selectrole" value="$ENV{'form.selectrole'}" /> |
</html> |
<input type="text" size="20" name="newkey" value="$ENV{'form.newkey'}" /> |
ENDREDIR |
<input type="submit" value="Enter key" /> |
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</form> |
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</body></html> |
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ENDENTERKEY |
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return OK; |
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} |
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} |
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} |
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my $tadv=0; |
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if (($trolecode!~/^st/) && |
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($trolecode!~/^ta/) && |
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($trolecode!~/^cm/)) { $tadv=1; } |
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&Apache::lonnet::appenv( |
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'request.role' => $trolecode, |
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'request.role.adv' => $tadv, |
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'request.role.domain' => $cdom, |
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'request.course.sec' => $csec); |
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my $msg='Entering course ...'; |
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if (($cnum) && ($role ne 'ca')) { |
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my ($furl,$ferr)= |
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&Apache::lonuserstate::readmap($cdom.'/'.$cnum); |
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if (($ENV{'form.orgurl'}) && |
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($ENV{'form.orgurl'}!~/^\/adm\/flip/)) { |
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my $dest=$ENV{'form.orgurl'}; |
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if ( Apache::exists_config_define("MODPERL2") ) { |
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&Apache::lonnet::cleanenv(); |
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} |
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$r->internal_redirect($dest); |
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return OK; |
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} else { |
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unless ($ENV{'request.course.id'}) { |
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&Apache::lonnet::appenv( |
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"request.course.id" => $cdom.'_'.$cnum); |
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$furl='/adm/roles?tryagain=1'; |
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$msg= |
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'<h1><font color=red>Could not initialize course at this time.</font></h1><h3>Please try again.</h3>'.$ferr; |
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} |
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# Check to see if the user is a CC entering a course |
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# for the first time |
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my (undef, undef, $role, $courseid) = split(/\./, $envkey); |
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if (substr($courseid, 0, 1) eq '/') { |
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$courseid = substr($courseid, 1); |
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} |
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$courseid =~ s/\//_/; |
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if ($role eq 'cc' && $ENV{'course.' . $courseid . |
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'.course.helper.not.run'}) { |
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$furl = "/adm/helper/course.initialization.helper"; |
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} |
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# |
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# Send the user to the course they selected |
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&redirect_user($r,'Entering Course', |
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$furl,$msg); |
return OK; |
return OK; |
} |
} |
} |
} |
} |
# |
} |
# Send the user to the construction space they selected |
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if ($role =~ /^(au|ca)$/) { |
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my $redirect_url = '/priv/'; |
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if ($role eq 'au') { |
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$redirect_url.=$ENV{'user.name'}; |
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} else { |
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$where =~ /\/(.*)$/; |
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$redirect_url .= $1; |
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} |
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$redirect_url .= '/'; |
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&redirect_user($r,'Entering Construction Space', |
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$redirect_url); |
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return OK; |
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} |
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} |
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} |
} |
} |
} |
} |
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Line 167 ENDHEADER
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Line 253 ENDHEADER
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my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'}); |
my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'}); |
if ($ENV{'user.error.msg'}) { |
if ($ENV{'user.error.msg'}) { |
$r->log_reason( |
$r->log_reason( |
"$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn); |
"$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn); |
} |
} |
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# ---------------------------------------------------------------- Who is this? |
# ------------------------------------------------- Can this user re-init, etc? |
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my $advanced=0; |
my $advanced=$ENV{'user.adv'}; |
foreach $envkey (keys %ENV) { |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']); |
if ($envkey=~/^user\.role\./) { |
my $tryagain=$ENV{'form.tryagain'}; |
my (undef,undef,$role,@pwhere)=split(/\./,$envkey); |
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if ($role ne 'st') { $advanced=1; } |
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} |
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} |
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# -------------------------------------------------------- Generate Page Output |
# -------------------------------------------------------- Generate Page Output |
# --------------------------------------------------------------- Error Header? |
# --------------------------------------------------------------- Error Header? |
Line 199 ENDHEADER
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Line 281 ENDHEADER
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# -------------------------------------------------------- Choice or no choice? |
# -------------------------------------------------------- Choice or no choice? |
if ($nochoose) { |
if ($nochoose) { |
if ($advanced) { |
if ($advanced) { |
$r->print("<h2>Assigned User Roles</h2>\n"); |
$r->print("<h2>Assigned User Roles</h2>\n"); |
} else { |
} else { |
$r->print("<h2>Sorry ...</h2>\nThis resource might be part of"); |
$r->print("<h2>Sorry ...</h2>\nThis resource might be part of"); |
if ($ENV{'request.course.id'}) { |
if ($ENV{'request.course.id'}) { |
$r->print(' another'); |
$r->print(' another'); |
} else { |
} else { |
$r->print(' a certain'); |
$r->print(' a certain'); |
} |
} |
$r->print(' course.</body></html>'); |
$r->print(' course.</body></html>'); |
return OK; |
return OK; |
} |
} |
} else { |
} else { |
if ($advanced) { |
if ($advanced) { |
$r->print("Your home server is ". |
$r->print("Your home server is ". |
$Apache::lonnet::hostname{&Apache::lonnet::homeserver |
$Apache::lonnet::hostname{&Apache::lonnet::homeserver |
($ENV{'user.name'},$ENV{'user.domain'})}. |
($ENV{'user.name'},$ENV{'user.domain'})}. |
"<br />\n"); |
"<br />\n"); |
$r->print("Author and Co-Author roles may not be available on ". |
$r->print("Author and Co-Author roles may not be available on ". |
"servers other than your home server."); |
"servers other than your home server."); |
} else { |
} else { |
$r->print("<h2>Enter a Course</h2>\n"); |
$r->print("<h2>Select a Course to Enter</h2>\n"); |
} |
} |
if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) { |
if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) { |
$fn.='?'.$ENV{'REDIRECT_QUERY_STRING'}; |
$fn.='?'.$ENV{'REDIRECT_QUERY_STRING'}; |
Line 228 ENDHEADER
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Line 310 ENDHEADER
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$r->print('<input type=hidden name=orgurl value="'.$fn.'">'); |
$r->print('<input type=hidden name=orgurl value="'.$fn.'">'); |
$r->print('<input type=hidden name=selectrole value=1>'); |
$r->print('<input type=hidden name=selectrole value=1>'); |
} |
} |
$r->print('<br>Show all roles: <input type=checkbox name=showall'); |
if ($ENV{'user.adv'}) { |
if ($ENV{'form.showall'}) { $r->print(' checked'); } |
$r->print( |
$r->print('><input type=submit value="Display"><br>'); |
'<br />Show all roles: <input type="checkbox" name="showall"'); |
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if ($ENV{'form.showall'}) { $r->print(' checked'); } |
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$r->print('><input type=submit value="Display">'); |
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} |
# ----------------------------------------------------------------------- Table |
# ----------------------------------------------------------------------- Table |
$r->print('<table><tr>'); |
$r->print('<br /><table><tr>'); |
unless ($nochoose) { $r->print('<th> </th>'); } |
unless ($nochoose) { $r->print('<th> </th>'); } |
$r->print('<th>User Role</th><th colspan=2>Extent</th>'. |
$r->print('<th>User Role</th><th colspan=2>Extent</th>'. |
'<th>Start</th><th>End</th><th>Remark</th></tr>'."\n"); |
'<th>Start</th><th>End</th><th>Remark</th></tr>'."\n"); |
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foreach $envkey (sort keys %ENV) { |
foreach $envkey (sort keys %ENV) { |
my $button = 1; |
my $button = 1; |
Line 348 ENDHEADER
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Line 433 ENDHEADER
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if ($ENV{'course.'.$tcourseid.'.description'}) { |
if ($ENV{'course.'.$tcourseid.'.description'}) { |
$twhere=$ENV{'course.'.$tcourseid.'.description'}; |
$twhere=$ENV{'course.'.$tcourseid.'.description'}; |
unless ($twhere eq 'Currently not available') { |
unless ($twhere eq 'Currently not available') { |
$twhere.=' <font size="-2">'. |
$twhere.=' <font size="-2">'. |
&Apache::loncommon::syllabuswrapper('Syllabus',$trest,$tdom,$tfont). |
&Apache::loncommon::syllabuswrapper('Syllabus',$trest,$tdom,$tfont). |
'</font>'; |
'</font>'; |
} |
} |
} else { |
} else { |
my %newhash=Apache::lonnet::coursedescription |
my %newhash=Apache::lonnet::coursedescription |
($tcourseid); |
($tcourseid); |
Line 374 ENDHEADER
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Line 459 ENDHEADER
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$twhere='system wide'; |
$twhere='system wide'; |
} |
} |
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# ----- do not trust the indention below here ----- |
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$r->print('<tr bgcolor='.$tbg.'>'); |
$r->print('<tr bgcolor='.$tbg.'>'); |
unless ($nochoose) { |
unless ($nochoose) { |
if (!$button) { |
if (!$button) { |
Line 387 ENDHEADER
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Line 471 ENDHEADER
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} elsif ($tstatus eq 'is') { |
} elsif ($tstatus eq 'is') { |
$r->print('<td><input type=submit value=Select name="'. |
$r->print('<td><input type=submit value=Select name="'. |
$trolecode.'"></td>'); |
$trolecode.'"></td>'); |
} elsif ($ENV{'user.adv'}) { |
} elsif ($tryagain) { |
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$r->print |
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('<td><input type=submit value="Try Selecting Again"'. |
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' name="'.$trolecode.'"></td>'); |
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} elsif ($advanced) { |
$r->print |
$r->print |
('<td><input type=submit value="Re-Initialize"'. |
('<td><input type=submit value="Re-Initialize"'. |
' name="'.$trolecode.'"></td>'); |
' name="'.$trolecode.'"></td>'); |
Line 395 ENDHEADER
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Line 483 ENDHEADER
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$r->print('<td> </td>'); |
$r->print('<td> </td>'); |
} |
} |
} |
} |
$r->print('<td><font color="'.$tfont.'">'.$trole. |
$tremark.=&Apache::lonannounce::showday(time,1, |
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&Apache::lonannounce::readcalendar($tdom.'_'.$trest)); |
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|
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$r->print('<td><font color="'.$tfont.'">'.$trole. |
'</font></td><td><font color="'.$tfont.'">'.$ttype. |
'</font></td><td><font color="'.$tfont.'">'.$ttype. |
'</font></td><td><font color="'.$tfont.'">'.$twhere. |
'</font></td><td><font color="'.$tfont.'">'.$twhere. |
'</font></td><td><font color="'.$tfont.'">'.$tpstart. |
'</font></td><td><font color="'.$tfont.'">'.$tpstart. |
'</font></td><td><font color="'.$tfont.'">'.$tpend. |
'</font></td><td><font color="'.$tfont.'">'.$tpend. |
'</font></td><td><font color="'.$tfont.'">'.$tremark. |
'</font></td><td><font color="'.$tfont.'">'.$tremark. |
' </font></td></tr>'."\n"); |
' </font></td></tr>'."\n"); |
} |
} |
} |
} |
} |
} |
my $tremark=''; |
my $tremark=''; |
Line 415 ENDHEADER
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Line 506 ENDHEADER
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$r->print('<tr bgcolor="#77FF77">'); |
$r->print('<tr bgcolor="#77FF77">'); |
} |
} |
unless ($nochoose) { |
unless ($nochoose) { |
if ($ENV{'request.role'} ne 'cm') { |
if ($ENV{'request.role'} ne 'cm') { |
$r->print('<td><input type=submit value=Select name="cm"></td>'); |
$r->print('<td><input type=submit value=Select name="cm"></td>'); |
} else { |
} else { |
$r->print('<td> </td>'); |
$r->print('<td> </td>'); |
} |
} |
} |
} |
$r->print('<td colspan=5><font color="'.$tfont.'">No role specified'. |
$r->print('<td colspan=5><font color="'.$tfont.'">No role specified'. |
'</font></td><td><font color="'.$tfont.'">'.$tremark. |
'</font></td><td><font color="'.$tfont.'">'.$tremark. |
Line 430 ENDHEADER
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Line 521 ENDHEADER
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$r->print("</form>\n"); |
$r->print("</form>\n"); |
} |
} |
# ------------------------------------------------------------ Privileges Info |
# ------------------------------------------------------------ Privileges Info |
if (($advanced) && (($ENV{'user.error.msg'}) || ($error))) { |
if (($advanced) && (($ENV{'user.error.msg'}) || ($error))) { |
$r->print('<hr><h2>Current Privileges</h2>'); |
$r->print('<hr><h2>Current Privileges</h2>'); |
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foreach $envkey (sort keys %ENV) { |
foreach $envkey (sort keys %ENV) { |
if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) { |
if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) { |
my $where=$envkey; |
my $where=$envkey; |
$where=~s/^user\.priv\.$ENV{'request.role'}\.//; |
$where=~s/^user\.priv\.$ENV{'request.role'}\.//; |
my $ttype; |
my $ttype; |
my $twhere; |
my $twhere; |
my ($tdom,$trest,$tsec)= |
my ($tdom,$trest,$tsec)= |
split(/\//,Apache::lonnet::declutter($where)); |
split(/\//,Apache::lonnet::declutter($where)); |
if ($trest) { |
if ($trest) { |
if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') { |
if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') { |
$ttype='Construction Space'; |
$ttype='Construction Space'; |
$twhere='User: '.$trest.', Domain: '.$tdom; |
$twhere='User: '.$trest.', Domain: '.$tdom; |
} else { |
} else { |
$ttype='Course'; |
$ttype='Course'; |
$twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'}; |
$twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'}; |
if ($tsec) { |
if ($tsec) { |
$twhere.=' (Section/Group: '.$tsec.')'; |
$twhere.=' (Section/Group: '.$tsec.')'; |
} |
} |
} |
} |
} elsif ($tdom) { |
} elsif ($tdom) { |
$ttype='Domain'; |
$ttype='Domain'; |
$twhere=$tdom; |
$twhere=$tdom; |
} else { |
} else { |
$ttype='System'; |
$ttype='System'; |
$twhere='/'; |
$twhere='/'; |
} |
} |
$r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>'); |
$r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>'); |
foreach (sort split(/:/,$ENV{$envkey})) { |
foreach (sort split(/:/,$ENV{$envkey})) { |
if ($_) { |
if ($_) { |
my ($prv,$restr)=split(/\&/,$_); |
my ($prv,$restr)=split(/\&/,$_); |
my $trestr=''; |
my $trestr=''; |
if ($restr ne 'F') { |
if ($restr ne 'F') { |
my $i; |
my $i; |
$trestr.=' ('; |
$trestr.=' ('; |
for ($i=0;$i<length($restr);$i++) { |
for ($i=0;$i<length($restr);$i++) { |
$trestr.= |
$trestr.= |
Apache::lonnet::plaintext(substr($restr,$i,1)); |
Apache::lonnet::plaintext(substr($restr,$i,1)); |
if ($i<length($restr)-1) { $trestr.=', '; } |
if ($i<length($restr)-1) { $trestr.=', '; } |
} |
} |
$trestr.=')'; |
$trestr.=')'; |
} |
} |
$r->print('<li>'.Apache::lonnet::plaintext($prv).$trestr. |
$r->print('<li>'. |
'</li>'); |
Apache::lonnet::plaintext($prv).$trestr. |
} |
'</li>'); |
} |
} |
$r->print('</ul>'); |
} |
} |
$r->print('</ul>'); |
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} |
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} |
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} |
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$r->print(&Apache::lonnet::getannounce()); |
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if ($advanced) { |
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$r->print('<p><small><i>This is LON-CAPA '. |
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$r->dir_config('lonVersion').'</i></small></p>'); |
} |
} |
} |
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|
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$r->print("</body></html>\n"); |
$r->print("</body></html>\n"); |
return OK; |
return OK; |
} |
} |
Line 506 Invoked by /etc/httpd/conf/srm.conf:
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Line 602 Invoked by /etc/httpd/conf/srm.conf:
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ErrorDocument 500 /adm/errorhandler |
ErrorDocument 500 /adm/errorhandler |
</Location> |
</Location> |
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|
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=head1 OVERVIEW |
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|
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=head2 Choosing Roles |
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|
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C<lonroles> is a handler that allows a user to switch roles in |
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mid-session. LON-CAPA attempts to work with "No Role Specified", the |
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default role that a user has before selecting a role, as widely as |
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possible, but certain handlers for example need specification which |
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course they should act on, etc. Both in this scenario, and when the |
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handler determines via C<lonnet>'s C<&allowed> function that a certain |
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action is not allowed, C<lonroles> is used as error handler. This |
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allows the user to select another role which may have permission to do |
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what they were trying to do. C<lonroles> can also be accessed via the |
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B<CRS> button in the Remote Control. |
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=begin latex |
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\begin{figure} |
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\begin{center} |
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\includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen} |
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\caption{\label{Sample_Roles_Screen}Sample Roles Screen} |
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\end{center} |
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\end{figure} |
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=end latex |
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=head2 Role Initialization |
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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. |
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=head1 INTRODUCTION |
=head1 INTRODUCTION |
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This module enables a user to select what role he wishes to |
This module enables a user to select what role he wishes to |