version 1.61, 2003/06/18 15:05:32
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version 1.73, 2003/09/21 21:40:06
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Line 51 use Apache::File();
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Line 51 use Apache::File();
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use Apache::lonmenu; |
use Apache::lonmenu; |
use Apache::loncommon; |
use Apache::loncommon; |
use Apache::lonannounce; |
use Apache::lonannounce; |
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use Apache::lonlocal; |
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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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&Apache::loncommon::content_type($r,'text/html'); |
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&Apache::loncommon::no_cache($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 106 sub handler {
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Line 131 sub handler {
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# student attempts to register a new key |
# student attempts to register a new key |
} else { |
} else { |
# print form to enter a new key |
# print form to enter a new key |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
&Apache::loncommon::no_cache($r); |
&Apache::loncommon::no_cache($r); |
$r->send_http_header; |
$r->send_http_header; |
my $swinfo=&Apache::lonmenu::rawconfig(); |
my $swinfo=&Apache::lonmenu::rawconfig(); |
Line 140 ENDENTERKEY
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Line 165 ENDENTERKEY
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'request.role.adv' => $tadv, |
'request.role.adv' => $tadv, |
'request.role.domain' => $cdom, |
'request.role.domain' => $cdom, |
'request.course.sec' => $csec); |
'request.course.sec' => $csec); |
my $msg='Entering course ...'; |
my $msg=&mt('Entering course ...'); |
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if (($cnum) && ($role ne 'ca')) { |
if (($cnum) && ($role ne 'ca')) { |
my ($furl,$ferr)= |
my ($furl,$ferr)= |
&Apache::lonuserstate::readmap($cdom.'/'.$cnum); |
&Apache::lonuserstate::readmap($cdom.'/'.$cnum); |
if (($ENV{'form.orgurl'}) && |
if (($ENV{'form.orgurl'}) && |
($ENV{'form.orgurl'}!~/^\/adm\/flip/)) { |
($ENV{'form.orgurl'}!~/^\/adm\/flip/)) { |
$r->internal_redirect($ENV{'form.orgurl'}); |
my $dest=$ENV{'form.orgurl'}; |
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if ( &Apache::lonnet::mod_perl_version() == 2 ) { |
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&Apache::lonnet::cleanenv(); |
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} |
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$r->internal_redirect($dest); |
return OK; |
return OK; |
} else { |
} else { |
unless ($ENV{'request.course.id'}) { |
unless ($ENV{'request.course.id'}) { |
Line 154 ENDENTERKEY
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Line 184 ENDENTERKEY
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"request.course.id" => $cdom.'_'.$cnum); |
"request.course.id" => $cdom.'_'.$cnum); |
$furl='/adm/roles?tryagain=1'; |
$furl='/adm/roles?tryagain=1'; |
$msg= |
$msg= |
'<h1><font color=red>Could not initialize course at this time.</font></h1><h3>Please try again.</h3>'; |
'<h1><font color=red>'. |
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&mt('Could not initialize course at this time.'). |
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'</font></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr; |
} |
} |
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# Check to see if the user is a CC entering a course |
# Check to see if the user is a CC entering a course |
Line 168 ENDENTERKEY
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Line 200 ENDENTERKEY
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'.course.helper.not.run'}) { |
'.course.helper.not.run'}) { |
$furl = "/adm/helper/course.initialization.helper"; |
$furl = "/adm/helper/course.initialization.helper"; |
} |
} |
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# |
$r->content_type('text/html'); |
# Send the user to the course they selected |
&Apache::loncommon::no_cache($r); |
&redirect_user($r,'Entering Course', |
$r->send_http_header; |
$furl,$msg); |
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> |
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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>$msg</h1> |
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</body> |
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</html> |
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ENDREDIR |
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return OK; |
return OK; |
} |
} |
} |
} |
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# |
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# Send the user to the construction space they selected |
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if ($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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} |
} |
} |
} |
} |
} |
} |
Line 198 ENDREDIR
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Line 230 ENDREDIR
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# =============================================================== No Roles Init |
# =============================================================== No Roles Init |
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$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
&Apache::loncommon::no_cache($r); |
&Apache::loncommon::no_cache($r); |
$r->send_http_header; |
$r->send_http_header; |
return OK if $r->header_only; |
return OK if $r->header_only; |
Line 245 ENDHEADER
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Line 277 ENDHEADER
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} else { |
} else { |
if ($ENV{'user.error.msg'}) { |
if ($ENV{'user.error.msg'}) { |
$r->print( |
$r->print( |
'<h3><font color=red>You need to choose another user role or '. |
'<h3><font color=red>'. |
'enter a specific course for this function</font></h3>'); |
&mt('You need to choose another user role or enter a specific course for this function').'</font></h3>'); |
} |
} |
} |
} |
# -------------------------------------------------------- Choice or no choice? |
# -------------------------------------------------------- Choice or no choice? |
if ($nochoose) { |
if ($nochoose) { |
if ($advanced) { |
if ($advanced) { |
$r->print("<h2>Assigned User Roles</h2>\n"); |
$r->print("<h2>".&mt('Assigned User Roles')."</h2>\n"); |
} else { |
} else { |
$r->print("<h2>Sorry ...</h2>\nThis resource might be part of"); |
$r->print("<h2>".&mt('Sorry ...')."</h2>\n". |
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&mt('This resource might be part of')); |
if ($ENV{'request.course.id'}) { |
if ($ENV{'request.course.id'}) { |
$r->print(' another'); |
$r->print(&mt(' another')); |
} else { |
} else { |
$r->print(' a certain'); |
$r->print(&mt(' a certain')); |
} |
} |
$r->print(' course.</body></html>'); |
$r->print(&mt(' course.').'</body></html>'); |
return OK; |
return OK; |
} |
} |
} else { |
} else { |
if ($advanced) { |
if ($advanced) { |
$r->print("Your home server is ". |
$r->print(&mt("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(&mt( |
"servers other than your home server."); |
"Author and Co-Author roles may not be available on servers other than your home server.")); |
} else { |
} else { |
$r->print("<h2>Select a Course to Enter</h2>\n"); |
$r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n"); |
} |
} |
if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) { |
if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) { |
$fn.='?'.$ENV{'REDIRECT_QUERY_STRING'}; |
$fn.='?'.$ENV{'REDIRECT_QUERY_STRING'}; |
Line 281 ENDHEADER
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Line 314 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( |
$r->print('><input type=submit value="Display"><br>'); |
'<br />'.&mt('Show all roles').': <input type="checkbox" name="showall"'); |
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if ($ENV{'form.showall'}) { $r->print(' checked'); } |
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$r->print('><input type=submit value="'.&mt('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>'.&mt('User Role').'</th><th colspan=2>'.&mt('Extent'). |
'<th>Start</th><th>End</th><th>Remark</th></tr>'."\n"); |
'</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th><th>'. |
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&mt('Remark').'</th></tr>'."\n"); |
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foreach $envkey (sort keys %ENV) { |
foreach $envkey (sort keys %ENV) { |
my $button = 1; |
my $button = 1; |
Line 333 ENDHEADER
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Line 370 ENDHEADER
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$button=0; |
$button=0; |
} elsif ($tstatus eq 'will') { |
} elsif ($tstatus eq 'will') { |
$tbg='#FFAA77'; |
$tbg='#FFAA77'; |
$tremark.='Active at next login. '; |
$tremark.=&mt('Active at next login. '); |
} elsif ($tstatus eq 'expired') { |
} elsif ($tstatus eq 'expired') { |
$tbg='#FF7777'; |
$tbg='#FF7777'; |
$tfont='#330000'; |
$tfont='#330000'; |
$button=0; |
$button=0; |
} elsif ($tstatus eq 'will_not') { |
} elsif ($tstatus eq 'will_not') { |
$tbg='#AAFF77'; |
$tbg='#AAFF77'; |
$tremark.='Expired after logout. '; |
$tremark.=&mt('Expired after logout. '); |
} elsif ($tstatus eq 'selected') { |
} elsif ($tstatus eq 'selected') { |
$tbg='#11CC55'; |
$tbg='#11CC55'; |
$tfont='#002200'; |
$tfont='#002200'; |
$tremark.='Currently selected. '; |
$tremark.=&mt('Currently selected. '); |
} |
} |
my $trole; |
my $trole; |
if ($role =~ /^cr\//) { |
if ($role =~ /^cr\//) { |
my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role); |
my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role); |
$tremark.='<br>Defined by '.$rauthor.' at '.$rdomain.'.'; |
$tremark.='<br>'.&mt('Defined by ').$rauthor. |
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&mt(' at ').$rdomain.'.'; |
$trole=$rrole; |
$trole=$rrole; |
} else { |
} else { |
$trole=Apache::lonnet::plaintext($role); |
$trole=Apache::lonnet::plaintext($role); |
Line 371 ENDHEADER
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Line 409 ENDHEADER
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} |
} |
#next if ($home eq 'no_host'); |
#next if ($home eq 'no_host'); |
$home = $Apache::lonnet::hostname{$home}; |
$home = $Apache::lonnet::hostname{$home}; |
$ttype='Construction Space'; |
$ttype=&mt('Construction Space'); |
$twhere='User: '.$trest.'<br />Domain: '.$tdom.'<br />'. |
$twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain'). |
' Server: '.$home; |
': '.$tdom.'<br />'. |
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' '.&mt('Server').': '.$home; |
$ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca'; |
$ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca'; |
} elsif ($role eq 'au') { |
} elsif ($role eq 'au') { |
# Authors |
# Authors |
Line 389 ENDHEADER
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Line 428 ENDHEADER
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} |
} |
#next if ($home eq 'no_host'); |
#next if ($home eq 'no_host'); |
$home = $Apache::lonnet::hostname{$home}; |
$home = $Apache::lonnet::hostname{$home}; |
$ttype='Construction Space'; |
$ttype=&mt('Construction Space'); |
$twhere='Domain: '.$tdom.'<br />Server: '.$home; |
$twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server'). |
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': '.$home; |
$ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca'; |
$ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca'; |
} elsif ($trest) { |
} elsif ($trest) { |
$ttype='Course'; |
$ttype=&mt('Course'); |
if ($tsection) { |
if ($tsection) { |
$ttype.='<br>Section/Group: '.$tsection; |
$ttype.='<br>'.&mt('Section/Group').': '.$tsection; |
} |
} |
my $tcourseid=$tdom.'_'.$trest; |
my $tcourseid=$tdom.'_'.$trest; |
if ($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 &mt('Currently not available')) { |
$twhere.=' <font size="-2">'. |
$twhere.=' <font size="-2">'. |
&Apache::loncommon::syllabuswrapper('Syllabus',$trest,$tdom,$tfont). |
&Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont). |
'</font>'; |
'</font>'; |
} |
} |
} else { |
} else { |
Line 411 ENDHEADER
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Line 451 ENDHEADER
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if (%newhash) { |
if (%newhash) { |
$twhere=$newhash{'description'}. |
$twhere=$newhash{'description'}. |
' <font size="-2">'. |
' <font size="-2">'. |
&Apache::loncommon::syllabuswrapper('Syllabus',$trest,$tdom,$tfont). |
&Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont). |
'</font>'; |
'</font>'; |
} else { |
} else { |
$twhere='Currently not available'; |
$twhere=&mt('Currently not available'); |
$ENV{'course.'.$tcourseid.'.description'}=$twhere; |
$ENV{'course.'.$tcourseid.'.description'}=$twhere; |
} |
} |
} |
} |
if ($role ne 'st') { $twhere.="<br />Domain:".$tdom; } |
if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; } |
} elsif ($tdom) { |
} elsif ($tdom) { |
$ttype='Domain'; |
$ttype=&mt('Domain'); |
$twhere=$tdom; |
$twhere=$tdom; |
} else { |
} else { |
$ttype='System'; |
$ttype=&mt('System'); |
$twhere='system wide'; |
$twhere=&mt('system wide'); |
} |
} |
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$r->print('<tr bgcolor='.$tbg.'>'); |
$r->print('<tr bgcolor='.$tbg.'>'); |
Line 432 ENDHEADER
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Line 472 ENDHEADER
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if (!$button) { |
if (!$button) { |
if ($switchserver) { |
if ($switchserver) { |
$r->print('<td><a href="/adm/logout?handover='. |
$r->print('<td><a href="/adm/logout?handover='. |
$switchserver.'">Switch Server</a></td>'); |
$switchserver.'">'.&mt('Switch Server').'</a></td>'); |
} else { |
} else { |
$r->print('<td> </td>'); |
$r->print('<td> </td>'); |
} |
} |
} elsif ($tstatus eq 'is') { |
} elsif ($tstatus eq 'is') { |
$r->print('<td><input type=submit value=Select name="'. |
$r->print('<td><input type=submit value="'. |
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&mt('Select').'" name="'. |
$trolecode.'"></td>'); |
$trolecode.'"></td>'); |
} elsif ($tryagain) { |
} elsif ($tryagain) { |
$r->print |
$r->print |
('<td><input type=submit value="Try Selecting Again"'. |
('<td><input type=submit value="'. |
' name="'.$trolecode.'"></td>'); |
&mt('Try Selecting Again').'" name="'.$trolecode.'"></td>'); |
} elsif ($advanced) { |
} elsif ($advanced) { |
$r->print |
$r->print |
('<td><input type=submit value="Re-Initialize"'. |
('<td><input type=submit value="'. |
' name="'.$trolecode.'"></td>'); |
&mt('Re-Initialize').'" name="'.$trolecode.'"></td>'); |
} else { |
} else { |
$r->print('<td> </td>'); |
$r->print('<td> </td>'); |
} |
} |
Line 468 ENDHEADER
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Line 509 ENDHEADER
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my $tfont='#003300'; |
my $tfont='#003300'; |
if ($ENV{'request.role'} eq 'cm') { |
if ($ENV{'request.role'} eq 'cm') { |
$r->print('<tr bgcolor="#11CC55">'); |
$r->print('<tr bgcolor="#11CC55">'); |
$tremark='Currently selected.'; |
$tremark=&mt('Currently selected. '); |
$tfont='#002200'; |
$tfont='#002200'; |
} else { |
} else { |
$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="'. |
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&mt('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.'">'.&mt('No role specified'). |
'</font></td><td><font color="'.$tfont.'">'.$tremark. |
'</font></td><td><font color="'.$tfont.'">'.$tremark. |
' </font></td></tr>'."\n"); |
' </font></td></tr>'."\n"); |
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Line 542 ENDHEADER
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Line 584 ENDHEADER
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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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} |
$r->print("</body></html>\n"); |
$r->print("</body></html>\n"); |
return OK; |
return OK; |
} |
} |
Line 566 Invoked by /etc/httpd/conf/srm.conf:
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Line 612 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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=head1 OVERVIEW |
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=head2 Choosing Roles |
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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 |