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version 1.55, 2003/03/24 18:46:44
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version 1.259, 2010/09/02 17:06:38
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| # |
# |
| # http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
| # |
# |
| # (Directory Indexer |
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| # (Login Screen |
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| # YEAR=1999 |
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| # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer) |
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| # 11/23 Gerd Kortemeyer) |
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| # YEAR=2000 |
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| # 1/14,03/06,06/01,07/22,07/24,07/25, |
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| # 09/04,09/06,09/28,09/29,09/30,10/2,10/5,10/26,10/28, |
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| # 12/08,12/28, |
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| # YEAR=2001 |
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| # 01/15/01 Gerd Kortemeyer |
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| # 03/02,05/03,05/25,05/30,06/01,07/06,08/06 Gerd Kortemeyer |
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| # 12/29 Gerd Kortemeyer |
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| # |
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| ### |
### |
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=pod |
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=head1 NAME |
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Apache::lonroles - User Roles Screen |
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=head1 SYNOPSIS |
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Invoked by /etc/httpd/conf/srm.conf: |
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<Location /adm/roles> |
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PerlAccessHandler Apache::lonacc |
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SetHandler perl-script |
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PerlHandler Apache::lonroles |
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ErrorDocument 403 /adm/login |
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ErrorDocument 500 /adm/errorhandler |
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</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. |
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|
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=begin latex |
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|
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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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|
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=end latex |
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|
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=head2 Role Initialization |
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|
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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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|
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=head1 INTRODUCTION |
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|
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This module enables a user to select what role he wishes to |
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operate under (instructor, student, teaching assistant, course |
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coordinator, etc). These roles are pre-established by the actions |
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of upper-level users. |
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|
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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|
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=head1 HANDLER SUBROUTINE |
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|
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This routine is called by Apache and mod_perl. |
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|
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=over 4 |
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|
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=item * |
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|
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Roles Initialization (yes/no) |
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|
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=item * |
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|
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Get Error Message from Environment |
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|
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=item * |
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|
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Who is this? |
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|
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=item * |
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|
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Generate Page Output |
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|
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=item * |
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|
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Choice or no choice |
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|
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=item * |
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|
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Table |
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|
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=item * |
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|
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Privileges |
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|
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=back |
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|
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=cut |
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|
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|
| package Apache::lonroles; |
package Apache::lonroles; |
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|
| use strict; |
use strict; |
| use Apache::lonnet(); |
use Apache::lonnet; |
| use Apache::lonuserstate(); |
use Apache::lonuserstate(); |
| use Apache::Constants qw(:common); |
use Apache::Constants qw(:common); |
| use Apache::File(); |
use Apache::File(); |
| use Apache::lonmenu; |
use Apache::lonmenu; |
| use Apache::loncommon; |
use Apache::loncommon; |
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use Apache::lonhtmlcommon; |
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use Apache::lonannounce; |
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use Apache::lonlocal; |
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use Apache::lonpageflip(); |
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use Apache::lonnavdisplay(); |
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use Apache::loncoursequeueadmin; |
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use GDBM_File; |
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use LONCAPA qw(:DEFAULT :match); |
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use HTML::Entities; |
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|
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|
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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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|
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# Breadcrumbs |
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my $brcrum = [{'href' => $url, |
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'text' => 'Switching Role'},]; |
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my $start_page = &Apache::loncommon::start_page('Switching Role',undef, |
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{'redirect' => [1,$url], |
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'bread_crumbs' => $brcrum,}); |
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my $end_page = &Apache::loncommon::end_page(); |
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|
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# Note to style police: |
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# This must only replace the spaces, nothing else, or it bombs elsewhere. |
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$url=~s/ /\%20/g; |
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$r->print(<<ENDREDIR); |
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$start_page |
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<p>$msg</p> |
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$end_page |
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ENDREDIR |
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return; |
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} |
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|
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sub error_page { |
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my ($r,$error,$dest)=@_; |
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&Apache::loncommon::content_type($r,'text/html'); |
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&Apache::loncommon::no_cache($r); |
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$r->send_http_header; |
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return OK if $r->header_only; |
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# Breadcrumbs |
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my $brcrum = [{'href' => $dest, |
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'text' => 'Problems during Course Initialization'},]; |
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$r->print(&Apache::loncommon::start_page('Problems during Course Initialization', |
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undef, |
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{'bread_crumbs' => $brcrum,}) |
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); |
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$r->print( |
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'<script type="text/javascript">'. |
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'// <![CDATA['. |
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&Apache::lonmenu::rawconfig(). |
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'// ]]>'. |
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'</script>'. |
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'<p class="LC_error">'.&mt('The following problems occurred:'). |
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'<br />'. |
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$error. |
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'</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>' |
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); |
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$r->print(&Apache::loncommon::end_page()); |
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} |
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|
| sub handler { |
sub handler { |
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|
| my $r = shift; |
my $r = shift; |
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|
| my $now=time; |
my $now=time; |
| my $then=$ENV{'user.login.time'}; |
my $then=$env{'user.login.time'}; |
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my $refresh=$env{'user.refresh.time'}; |
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if (!$refresh) { |
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$refresh = $then; |
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} |
| my $envkey; |
my $envkey; |
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my %dcroles = (); |
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my $numdc = &check_fordc(\%dcroles,$then); |
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&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}); |
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my $loncaparev = $Apache::lonnet::perlvar{'lonVersion'}; |
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|
| # ================================================================== Roles Init |
# ================================================================== Roles Init |
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if ($env{'form.selectrole'}) { |
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|
| if ($ENV{'form.selectrole'}) { |
my $locknum=&Apache::lonnet::get_locks(); |
| if ($ENV{'request.course.id'}) { |
if ($locknum) { return 409; } |
| my %temp=('logout_'.$ENV{'request.course.id'} => time); |
|
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if ($env{'form.newrole'}) { |
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$env{'form.'.$env{'form.newrole'}}=1; |
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} |
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if ($env{'request.course.id'}) { |
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# Check if user is CC trying to select a course role |
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if ($env{'form.switchrole'}) { |
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my $switch_is_active; |
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if (defined($env{'user.role.'.$env{'form.switchrole'}})) { |
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my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}}); |
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if (!$end || $end > $now) { |
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if (!$start || $start < $refresh) { |
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$switch_is_active = 1; |
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} |
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} |
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} |
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unless ($switch_is_active) { |
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&adhoc_course_role($refresh,$then); |
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} |
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} |
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my %temp=('logout_'.$env{'request.course.id'} => time); |
| &Apache::lonnet::put('email_status',\%temp); |
&Apache::lonnet::put('email_status',\%temp); |
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&Apache::lonnet::delenv('user.state.'.$env{'request.course.id'}); |
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} |
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&Apache::lonnet::appenv({"request.course.id" => '', |
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"request.course.fn" => '', |
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"request.course.uri" => '', |
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"request.course.sec" => '', |
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"request.role" => 'cm', |
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"request.role.adv" => $env{'user.adv'}, |
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"request.role.domain" => $env{'user.domain'}}); |
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# Check if user is a DC trying to enter a course or author space and needs privs to be created |
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if ($numdc > 0) { |
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foreach my $envkey (keys %env) { |
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# Is this an ad-hoc Coordinator role? |
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if (my ($ccrole,$domain,$coursenum) = |
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($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) { |
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if ($dcroles{$domain}) { |
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&Apache::lonnet::check_adhoc_privs($domain,$coursenum, |
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$then,$refresh,$now,$ccrole); |
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} |
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last; |
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} |
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# Is this an ad-hoc CA-role? |
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if (my ($domain,$user) = |
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($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) { |
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if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) { |
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delete($env{$envkey}); |
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$env{'form.au./'.$domain.'/'} = 1; |
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my ($server_status,$home) = &check_author_homeserver($user,$domain); |
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if ($server_status eq 'switchserver') { |
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my $trolecode = 'au./'.$domain.'/'; |
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my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode; |
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$r->internal_redirect($switchserver); |
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} |
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last; |
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} |
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if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) { |
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if (((($castart) && ($castart < $now)) || !$castart) && |
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((!$caend) || (($caend) && ($caend > $now)))) { |
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my ($server_status,$home) = &check_author_homeserver($user,$domain); |
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if ($server_status eq 'switchserver') { |
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my $trolecode = 'ca./'.$domain.'/'.$user; |
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my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode; |
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$r->internal_redirect($switchserver); |
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} |
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last; |
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} |
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} |
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# Check if author blocked ca-access |
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my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user); |
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if ($blocked{'domcoord.author'} eq 'blocked') { |
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delete($env{$envkey}); |
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$env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access'; |
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last; |
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} |
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if ($dcroles{$domain}) { |
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my ($server_status,$home) = &check_author_homeserver($user,$domain); |
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if (($server_status eq 'ok') || ($server_status eq 'switchserver')) { |
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&Apache::lonnet::check_adhoc_privs($domain,$user,$then, |
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$refresh,$now,'ca'); |
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if ($server_status eq 'switchserver') { |
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my $trolecode = 'ca./'.$domain.'/'.$user; |
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my $switchserver = '/adm/switchserver?' |
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.'otherserver='.$home.'&role='.$trolecode; |
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$r->internal_redirect($switchserver); |
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} |
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} else { |
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delete($env{$envkey}); |
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} |
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} else { |
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delete($env{$envkey}); |
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} |
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last; |
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} |
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} |
| } |
} |
| &Apache::lonnet::appenv("request.course.id" => '', |
|
| "request.course.fn" => '', |
foreach $envkey (keys %env) { |
| "request.course.uri" => '', |
|
| "request.course.sec" => '', |
|
| "request.role" => 'cm', |
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| "request.role.domain" => $ENV{'user.domain'}); |
|
| foreach $envkey (keys %ENV) { |
|
| next if ($envkey!~/^user\.role\./); |
next if ($envkey!~/^user\.role\./); |
| my (undef,undef,$role,@pwhere)=split(/\./,$envkey); |
my ($where,$trolecode,$role,$tstatus,$tend,$tstart); |
| my $where=join('.',@pwhere); |
&Apache::lonnet::role_status($envkey,$then,$refresh,$now,\$role,\$where, |
| my $trolecode=$role.'.'.$where; |
\$trolecode,\$tstatus,\$tstart,\$tend); |
| if ($ENV{'form.'.$trolecode}) { |
if ($env{'form.'.$trolecode}) { |
| my ($tstart,$tend)=split(/\./,$ENV{$envkey}); |
|
| my $tstatus='is'; |
|
| if ($tstart) { |
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| if ($tstart>$then) { |
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| $tstatus='future'; |
|
| } |
|
| } |
|
| if ($tend) { |
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| if ($tend<$then) { $tstatus='expired'; } |
|
| if ($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(/\//,$where); |
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if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) { |
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my $home = $env{'course.'.$cdom.'_'.$cnum.'.home'}; |
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my @ids = &Apache::lonnet::current_machine_ids(); |
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unless ($loncaparev eq '' && $home && grep(/^\Q$home\E$/,@ids)) { |
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my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired'); |
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if ($curr_reqd_hash{'internal.releaserequired'} ne '') { |
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my ($switchserver,$switchwarning) = |
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&check_release_required($loncaparev,$cdom.'_'.$cnum,$trolecode,$curr_reqd_hash{'internal.releaserequired'}); |
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if ($switchwarning ne '' || $switchserver ne '') { |
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&Apache::loncommon::content_type($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 $end_page=&Apache::loncommon::end_page(); |
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$r->print(&Apache::loncommon::start_page('Selected course unavailable on this server'). |
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'<p class="LC_warning">'); |
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if ($switchwarning) { |
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$r->print($switchwarning.'<br /><a href="/adm/roles">'); |
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if (&Apache::loncommon::show_course()) { |
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$r->print(&mt('Display courses')); |
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} else { |
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$r->print(&mt('Display roles')); |
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} |
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$r->print('</a>'); |
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} elsif ($switchserver) { |
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$r->print(&mt('This course requires a newer version of LON-CAPA than is installed on this server.'). |
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'<br />'. |
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'<a href="/adm/switchserver?'.$switchserver.'">'. |
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&mt('Switch Server'). |
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'</a>'); |
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} |
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$r->print('</p>'.&Apache::loncommon::end_page()); |
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return OK; |
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} |
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} |
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} |
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} |
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# check for course groups |
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my %coursegroups = &Apache::lonnet::get_active_groups( |
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$env{'user.domain'},$env{'user.name'},$cdom, $cnum); |
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my $cgrps = join(':',keys(%coursegroups)); |
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|
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# store role if recent_role list being kept |
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if ($env{'environment.recentroles'}) { |
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my %frozen_roles = |
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&Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'}); |
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&Apache::lonhtmlcommon::store_recent('roles', |
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$trolecode,' ',$frozen_roles{$trolecode}); |
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} |
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|
| |
|
| # check for keyed access |
# check for keyed access |
| if (($role eq 'st') && |
if (($role eq 'st') && |
| ($ENV{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) { |
($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) { |
| unless (&Apache::lonnet::validate_access_key( |
# who is key authority? |
| $ENV{'environment.key.'.$cdom.'_'.$cnum}, |
my $authdom=$cdom; |
| $cdom,$cnum)) { |
my $authnum=$cnum; |
| |
if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) { |
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($authnum,$authdom)= |
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split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'}); |
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} |
| |
# check with key authority |
| |
unless (&Apache::lonnet::validate_access_key( |
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$env{'environment.key.'.$cdom.'_'.$cnum}, |
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$authdom,$authnum)) { |
| # there is no valid key |
# there is no valid key |
| if ($ENV{'form.newkey'}) { |
if ($env{'form.newkey'}) { |
| # student attempts to register a new key |
# student attempts to register a new key |
| |
&Apache::loncommon::content_type($r,'text/html'); |
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&Apache::loncommon::no_cache($r); |
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$r->send_http_header; |
| |
my $swinfo=&Apache::lonmenu::rawconfig(); |
| |
my $start_page=&Apache::loncommon::start_page |
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('Verifying Access Key to Unlock this Course'); |
| |
my $end_page=&Apache::loncommon::end_page(); |
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my $buttontext=&mt('Enter Course'); |
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my $message=&mt('Successfully registered key'); |
| |
my $assignresult= |
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&Apache::lonnet::assign_access_key( |
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$env{'form.newkey'}, |
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$authdom,$authnum, |
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$cdom,$cnum, |
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$env{'user.domain'}, |
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$env{'user.name'}, |
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&mt('Assigned from [_1] at [_2] for [_3]' |
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,$ENV{'REMOTE_ADDR'} |
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,&Apache::lonlocal::locallocaltime() |
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,$trolecode) |
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); |
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unless ($assignresult eq 'ok') { |
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$assignresult=~s/^error\:\s*//; |
| |
$message=&mt($assignresult). |
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'<br /><a href="/adm/logout">'. |
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&mt('Logout').'</a>'; |
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$buttontext=&mt('Re-Enter Key'); |
| |
} |
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$r->print(<<ENDENTEREDKEY); |
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$start_page |
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<script type="text/javascript"> |
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// <![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 { |
} 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(); |
| my $bodytag=&Apache::loncommon::bodytag |
my $start_page=&Apache::loncommon::start_page |
| ('Enter Access Key to Unlock this Course'); |
('Enter Access Key to Unlock this Course'); |
| |
my $end_page=&Apache::loncommon::end_page(); |
| $r->print(<<ENDENTERKEY); |
$r->print(<<ENDENTERKEY); |
| <head><title>Entering Course Access Key</title> |
$start_page |
| </head> |
<script type="text/javascript"> |
| <html> |
// <![CDATA[ |
| $bodytag |
|
| <script> |
|
| $swinfo |
$swinfo |
| |
// ]]> |
| </script> |
</script> |
| <form method="post"> |
<form action="" method="post"> |
| <input type="hidden" name="selectrole" value="$ENV{'form.selectrole'}" /> |
<input type="hidden" name="selectrole" value="1" /> |
| <input type="text" size="20" name="newkey" value="$ENV{'form.newkey'}" /> |
<input type="hidden" name="$trolecode" value="1" /> |
| |
<input type="text" size="20" name="newkey" value="$env{'form.newkey'}" /> |
| <input type="submit" value="Enter key" /> |
<input type="submit" value="Enter key" /> |
| </form> |
</form> |
| </body></html> |
$end_page |
| ENDENTERKEY |
ENDENTERKEY |
| return OK; |
return OK; |
| } |
} |
| } |
} |
| } |
} |
| &Apache::lonnet::appenv('request.role' => $trolecode, |
&Apache::lonnet::log($env{'user.domain'}, |
| |
$env{'user.name'}, |
| |
$env{'user.home'}, |
| |
"Role ".$trolecode); |
| |
|
| |
&Apache::lonnet::appenv( |
| |
{'request.role' => $trolecode, |
| 'request.role.domain' => $cdom, |
'request.role.domain' => $cdom, |
| 'request.course.sec' => $csec); |
'request.course.sec' => $csec, |
| my $msg='Entering course ...'; |
'request.course.groups' => $cgrps}); |
| if (($cnum) && ($role ne 'ca')) { |
my $tadv=0; |
| |
|
| |
if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) { |
| |
my $msg; |
| my ($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'}; |
| |
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,$cdom); |
| |
&update_content_constraints($cdom,$cnum,$chome,$cdom.'_'.$cnum); |
| |
} |
| |
} |
| |
$r->internal_redirect($dest); |
| |
} |
| return OK; |
return OK; |
| } else { |
} else { |
| unless ($ENV{'request.course.id'}) { |
if (!$env{'request.course.id'}) { |
| &Apache::lonnet::appenv( |
&Apache::lonnet::appenv( |
| "request.course.id" => $cdom.'_'.$cnum); |
{"request.course.id" => $cdom.'_'.$cnum}); |
| $furl='/adm/notfound.html'; |
$furl='/adm/roles?tryagain=1'; |
| $msg= |
$msg='<p><span class="LC_error">' |
| '<h1><font color=red>Could not initialize top-level map.</font></h1>'; |
.&mt('Could not initialize [_1] at this time.', |
| |
$env{'course.'.$cdom.'_'.$cnum.'.description'}) |
| |
.'</span></p>' |
| |
.'<p>'.&mt('Please try again.').'</p>' |
| |
.'<p>'.$ferr.'</p>'; |
| } |
} |
| $r->content_type('text/html'); |
if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; } |
| &Apache::loncommon::no_cache($r); |
&Apache::lonnet::appenv({'request.role.adv'=>$tadv}); |
| $r->send_http_header; |
|
| my $swinfo=&Apache::lonmenu::rawconfig(); |
if (($ferr) && ($tadv)) { |
| my $bodytag=&Apache::loncommon::bodytag('Switching Role'); |
&error_page($r,$ferr,$furl); |
| print (<<ENDREDIR); |
} else { |
| <head><title>Entering Course</title> |
# Check to see if the user is a CC entering a course |
| <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$furl"> |
# for the first time |
| </head> |
my (undef, undef, $role, $courseid) = split(/\./, $envkey); |
| <html> |
if (substr($courseid, 0, 1) eq '/') { |
| $bodytag |
$courseid = substr($courseid, 1); |
| <script> |
} |
| $swinfo |
$courseid =~ s/\//_/; |
| </script> |
if ((($role eq 'cc') || ($role eq 'co')) |
| <h1>$msg</h1> |
&& ($env{'course.' . $courseid .'.course.helper.not.run'})) { |
| </body> |
$furl = "/adm/helper/course.initialization.helper"; |
| </html> |
# Send the user to the course they selected |
| ENDREDIR |
} elsif ($env{'request.course.id'}) { |
| return OK; |
if ($env{'form.destinationurl'}) { |
| |
my $dest = $env{'form.destinationurl'}; |
| |
if ($env{'form.destsymb'} ne '') { |
| |
my $esc_symb = &HTML::Entities::encode($env{'form.destsymb'},'"<>&'); |
| |
$dest .= '?symb='.$esc_symb; |
| |
} |
| |
&redirect_user($r, &mt('Entering [_1]', |
| |
$env{'course.'.$courseid.'.description'}), |
| |
$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 $startpage = &courseloadpage($courseid); |
| |
unless ($startpage eq 'firstres') { |
| |
$msg = &mt('Entering [_1] ...', |
| |
$env{'course.'.$courseid.'.description'}); |
| |
&redirect_user($r, &mt('New in course'), |
| |
'/adm/whatsnew?refpage=start', $msg); |
| |
return OK; |
| |
} |
| |
} |
| |
} |
| |
# Are we allowed to look at the first resource? |
| |
if ($furl !~ m|^/adm/|) { |
| |
# Guess not ... |
| |
$furl=&Apache::lonpageflip::first_accessible_resource(); |
| |
} |
| |
$msg = &mt('Entering [_1] ...', |
| |
$env{'course.'.$courseid.'.description'}); |
| |
&redirect_user($r, &mt('Entering [_1]', |
| |
$env{'course.'.$courseid.'.description'}), |
| |
$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.name'}; |
| |
} else { |
| |
$where =~ /\/(.*)$/; |
| |
$redirect_url .= $1; |
| |
} |
| |
$redirect_url .= '/'; |
| |
&redirect_user($r,&mt('Entering Construction 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 'sc') { |
| |
my $redirect_url = '/adm/grades?command=scantronupload'; |
| |
&redirect_user($r,&mt('Loading Data Upload Page'), |
| |
$redirect_url); |
| |
return OK; |
| |
} |
| } |
} |
| } |
} |
| } |
} |
|
Line 177 ENDREDIR
|
Line 610 ENDREDIR
|
| |
|
| # =============================================================== No Roles Init |
# =============================================================== No Roles Init |
| |
|
| $r->content_type('text/html'); |
&Apache::loncommon::content_type($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; |
| |
|
| |
my $crumbtext = 'User Roles'; |
| |
my $pagetitle = 'My Roles'; |
| |
my $recent = &mt('Recent Roles'); |
| |
my $show_course=&Apache::loncommon::show_course(); |
| |
if ($show_course) { |
| |
$crumbtext = 'Courses'; |
| |
$pagetitle = 'My Courses'; |
| |
$recent = &mt('Recent Courses'); |
| |
} |
| |
my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}]; |
| my $swinfo=&Apache::lonmenu::rawconfig(); |
my $swinfo=&Apache::lonmenu::rawconfig(); |
| my $bodytag=&Apache::loncommon::bodytag('User Roles'); |
my $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum}); |
| my $helptag=&Apache::loncommon::help_open_topic |
my $standby=&mt('Role selected. Please stand by.'); |
| ("General_Intro","Click here for help"); |
$standby=~s/\n/\\n/g; |
| |
my $noscript='<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); |
$r->print(<<ENDHEADER); |
| <html> |
$start_page |
| <head> |
<br /> |
| <title>LON-CAPA User Roles</title> |
<noscript> |
| </head> |
$noscript |
| $bodytag |
</noscript> |
| $helptag<br /> |
<script type="text/javascript"> |
| <script> |
// <![CDATA[ |
| $swinfo |
$swinfo |
| window.focus(); |
window.focus(); |
| |
|
| |
active=true; |
| |
|
| |
function enterrole (thisform,rolecode,buttonname) { |
| |
if (active) { |
| |
active=false; |
| |
document.title='$standby'; |
| |
window.status='$standby'; |
| |
thisform.newrole.value=rolecode; |
| |
thisform.submit(); |
| |
} else { |
| |
alert('$standby'); |
| |
} |
| |
} |
| |
// ]]> |
| </script> |
</script> |
| ENDHEADER |
ENDHEADER |
| |
|
| # ------------------------------------------ Get Error Message from Environment |
# ------------------------------------------ Get Error Message from Environment |
| |
|
| 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); |
| } |
} |
| |
|
| # ---------------------------------------------------------------- Who is this? |
# ------------------------------------------------- Can this user re-init, etc? |
| |
|
| 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); |
my $reinit=$env{'user.reinit'}; |
| if ($role ne 'st') { $advanced=1; } |
delete $env{'user.reinit'}; |
| } |
|
| } |
|
| |
|
| # -------------------------------------------------------- Generate Page Output |
# -------------------------------------------------------- Generate Page Output |
| # --------------------------------------------------------------- Error Header? |
# --------------------------------------------------------------- Error Header? |
| if ($error) { |
if ($error) { |
| $r->print("<h1>LON-CAPA Access Control</h1>"); |
$r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>"); |
| $r->print("<hr><pre>Access : ". |
$r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>"); |
| Apache::lonnet::plaintext($priv)."\n"); |
if ($priv ne '') { |
| $r->print("Resource: $fn\n"); |
$r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n"); |
| $r->print("Action : $msg\n</pre><hr>"); |
} |
| } else { |
if ($fn ne '') { |
| if ($ENV{'user.error.msg'}) { |
$r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n"); |
| $r->print( |
} |
| '<h3><font color=red>You need to choose another user role or '. |
if ($msg ne '') { |
| 'enter a specific course for this function</font></h3>'); |
$r->print(&mt('Action : ').$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 { |
| |
$r->print( |
| |
'<h3><span class="LC_error">'. |
| |
&mt('You need to choose another user role or enter a specific course or community for this function.'). |
| |
'</span></h3>'); |
| |
} |
| |
} |
| } |
} |
| # -------------------------------------------------------- Choice or no choice? |
# -------------------------------------------------------- Choice or no choice? |
| if ($nochoose) { |
if ($nochoose) { |
| if ($advanced) { |
$r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>". |
| $r->print("<h2>Assigned User Roles</h2>\n"); |
&mt('This action is currently not authorized.').'</span>'. |
| } else { |
&Apache::loncommon::end_page()); |
| $r->print("<h2>Sorry ...</h2>\nThis resource might be part of"); |
return OK; |
| if ($ENV{'request.course.id'}) { |
|
| $r->print(' another'); |
|
| } else { |
|
| $r->print(' a certain'); |
|
| } |
|
| $r->print(' course.</body></html>'); |
|
| return OK; |
|
| } |
|
| } else { |
} else { |
| if ($advanced) { |
|
| $r->print("Your home server is ". |
|
| $Apache::lonnet::hostname{&Apache::lonnet::homeserver |
|
| ($ENV{'user.name'},$ENV{'user.domain'})}. |
|
| "<br />\n"); |
|
| $r->print("Author and Co-Author roles may not be available on ". |
|
| "servers other than your home server."); |
|
| } else { |
|
| $r->print("<h2>Enter a Course</h2>\n"); |
|
| } |
|
| if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) { |
if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) { |
| $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'}; |
$fn.='?'.$ENV{'REDIRECT_QUERY_STRING'}; |
| } |
} |
| $r->print('<form method=post action="'.(($fn)?$fn:$r->uri).'">'); |
$r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">'); |
| $r->print('<input type=hidden name=orgurl value="'.$fn.'">'); |
$r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />'); |
| $r->print('<input type=hidden name=selectrole value=1>'); |
$r->print('<input type="hidden" name="selectrole" value="1" />'); |
| } |
$r->print('<input type="hidden" name="newrole" value="" />'); |
| $r->print('<br>Show all roles: <input type=checkbox name=showall'); |
} |
| if ($ENV{'form.showall'}) { $r->print(' checked'); } |
$r->rflush(); |
| $r->print('><input type=submit value="Display"><br>'); |
|
| |
my (%roletext,%sortrole,%roleclass,%futureroles,%timezones); |
| |
my ($countactive,$countfuture,$inrole,$possiblerole) = |
| |
&gather_roles($then,$refresh,$now,$reinit,$nochoose,\%roletext,\%sortrole,\%roleclass, |
| |
\%futureroles,\%timezones,$loncaparev); |
| |
|
| |
$refresh = $now; |
| |
&Apache::lonnet::appenv({'user.refresh.time' => $refresh}); |
| |
if ($env{'user.adv'}) { |
| |
$r->print('<p><label><input type="checkbox" name="showall"'); |
| |
if ($env{'form.showall'}) { $r->print(' checked="checked" '); } |
| |
$r->print(' />'.&mt('Show all roles').'</label>' |
| |
.' <input type="submit" value="'.&mt('Update display').'" />' |
| |
.'</p>'); |
| |
} else { |
| |
if ($countactive > 0) { |
| |
$r->print(&Apache::loncoursequeueadmin::queued_selfenrollment()); |
| |
my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description'); |
| |
my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&'); |
| |
$r->print( |
| |
'<p>' |
| |
.&mt('[_1]Visit the [_2]Course/Community Catalog[_3]' |
| |
.' to view all [_4] LON-CAPA courses and communities.' |
| |
,'<b>' |
| |
,'<a href="/adm/coursecatalog?showdom='.$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) { |
| |
if ($inrole) { |
| |
$r->print('<h2>'.&mt('Currently no additional roles, courses or communities').'</h2>'); |
| |
} else { |
| |
$r->print('<h2>'.&mt('Currently no active roles, courses or communities').'</h2>'); |
| |
} |
| |
&findcourse_advice($r); |
| |
&requestcourse_advice($r); |
| |
$r->print('</form>'); |
| |
if ($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); |
| |
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; |
| |
} |
| # ----------------------------------------------------------------------- Table |
# ----------------------------------------------------------------------- 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 $envkey (sort keys %ENV) { |
if ($numdc > 0) { |
| |
$r->print(&coursepick_jscript()); |
| |
$r->print(&Apache::loncommon::coursebrowser_javascript(). |
| |
&Apache::loncommon::authorbrowser_javascript()); |
| |
} |
| |
|
| |
unless ((!&Apache::loncommon::show_course()) || ($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($1,'recent'); |
| |
} |
| |
} elsif ($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,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext); |
| |
if ($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()); |
| |
} |
| |
$r->print(&Apache::lonnet::getannounce()); |
| |
if ($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><br />' |
| |
.'<a href="/adm/logout">'.&mt('Logout').'</a> ' |
| |
.'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">' |
| |
.&mt('Course/Community Catalog') |
| |
.'</a></small></p>'); |
| |
} |
| |
$r->print(&Apache::loncommon::end_page()); |
| |
return OK; |
| |
} |
| |
|
| |
sub gather_roles { |
| |
my ($then,$refresh,$now,$reinit,$nochoose,$roletext,$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(); |
| |
foreach my $envkey (sort(keys(%env))) { |
| my $button = 1; |
my $button = 1; |
| my $switchserver=''; |
my $switchserver=''; |
| |
my $switchwarning; |
| |
my ($role_text,$role_text_end,$sortkey); |
| if ($envkey=~/^user\.role\./) { |
if ($envkey=~/^user\.role\./) { |
| my (undef,undef,$role,@pwhere)=split(/\./,$envkey); |
my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend); |
| next if (!defined($role) || $role eq ''); |
&Apache::lonnet::role_status($envkey,$then,$refresh,$now,\$role,\$where, |
| my $where=join('.',@pwhere); |
\$trolecode,\$tstatus,\$tstart,\$tend); |
| my $trolecode=$role.'.'.$where; |
next if (!defined($role) || $role eq '' || $role =~ /^gr/); |
| my ($tstart,$tend)=split(/\./,$ENV{$envkey}); |
$tremark=''; |
| my $tremark=''; |
$tpstart=' '; |
| my $tstatus='is'; |
$tpend=' '; |
| my $tpstart=' '; |
if ($env{'request.role'} eq $trolecode) { |
| my $tpend=' '; |
$tstatus='selected'; |
| my $tfont='#000000'; |
|
| if ($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; |
my $tbg; |
| if (($tstatus eq 'is') || ($tstatus eq 'selected') || |
if (($tstatus eq 'is') |
| ($ENV{'form.showall'})) { |
|| ($tstatus eq 'selected') |
| |
|| ($tstatus eq 'future') |
| |
|| ($env{'form.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') { |
if ($tstatus eq 'is') { |
| $tbg='#77FF77'; |
$tbg='LC_roles_is'; |
| $tfont='#003300'; |
$possiblerole=$trolecode; |
| |
$countactive++; |
| } elsif ($tstatus eq 'future') { |
} elsif ($tstatus eq 'future') { |
| $tbg='#FFFF77'; |
$tbg='LC_roles_future'; |
| $button=0; |
$button=0; |
| } elsif ($tstatus eq 'will') { |
$futureroles->{$trolecode} = $tstart.':'.$tend; |
| $tbg='#FFAA77'; |
$countfuture ++; |
| $tremark.='Active at next login. '; |
|
| } elsif ($tstatus eq 'expired') { |
} elsif ($tstatus eq 'expired') { |
| $tbg='#FF7777'; |
$tbg='LC_roles_expired'; |
| $tfont='#330000'; |
|
| $button=0; |
$button=0; |
| } elsif ($tstatus eq 'will_not') { |
} elsif ($tstatus eq 'will_not') { |
| $tbg='#AAFF77'; |
$tbg='LC_roles_will_not'; |
| $tremark.='Expired after logout. '; |
$tremark.=&mt('Expired after logout.').' '; |
| } elsif ($tstatus eq 'selected') { |
} elsif ($tstatus eq 'selected') { |
| $tbg='#11CC55'; |
$tbg='LC_roles_selected'; |
| $tfont='#002200'; |
$inrole=1; |
| $tremark.='Currently selected. '; |
$countactive++; |
| |
$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 '.$rdomain.'.'; |
if ($tremark) { $tremark.='<br />'; } |
| $trole=$rrole; |
$tremark.=&mt('Customrole defined by [_1].',$rauthor.':'.$rdomain); |
| } else { |
|
| $trole=Apache::lonnet::plaintext($role); |
|
| } |
} |
| |
$trole=Apache::lonnet::plaintext($role); |
| my $ttype; |
my $ttype; |
| my $twhere; |
my $twhere; |
| my ($tdom,$trest,$tsection)= |
my ($tdom,$trest,$tsection)= |
| split(/\//,Apache::lonnet::declutter($where)); |
split(/\//,Apache::lonnet::declutter($where)); |
| # First, Co-Authorship roles |
# First, Co-Authorship roles |
| if ($role eq 'ca') { |
if (($role eq 'ca') || ($role eq 'aa')) { |
| my $home = &Apache::lonnet::homeserver($trest,$tdom); |
my $home = &Apache::lonnet::homeserver($trest,$tdom); |
| if ($home ne $r->dir_config('lonHostID')) { |
my $allowed=0; |
| $button=0; |
foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } } |
| $switchserver=&Apache::lonnet::escape('http://'. |
if (!$allowed) { |
| $Apache::lonnet::hostname{$home}. |
$button=0; |
| '/adm/login?domain='.$ENV{'user.domain'}. |
$switchserver='otherserver='.$home.'&role='.$trolecode; |
| '&username='.$ENV{'user.name'}. |
|
| '&firsturl=/priv/'.$trest); |
|
| } |
} |
| #next if ($home eq 'no_host'); |
#next if ($home eq 'no_host'); |
| $home = $Apache::lonnet::hostname{$home}; |
$home = &Apache::lonnet::hostname($home); |
| $ttype='Construction Space'; |
$ttype='Construction Space'; |
| $twhere='User: '.$trest.'<br />Domain: '.$tdom.'<br />'. |
$twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain'). |
| ' Server: '.$home; |
': '.$tdom.'<br />'. |
| $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca'; |
' '.&mt('Server').': '.$home; |
| |
$env{'course.'.$tdom.'_'.$trest.'.description'}='ca'; |
| |
$tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/'); |
| |
$sortkey=$role."$trest:$tdom"; |
| } elsif ($role eq 'au') { |
} elsif ($role eq 'au') { |
| # Authors |
# Authors |
| my $home = &Apache::lonnet::homeserver |
my $home = &Apache::lonnet::homeserver |
| ($ENV{'user.name'},$ENV{'user.domain'}); |
($env{'user.name'},$env{'user.domain'}); |
| if ($home ne $r->dir_config('lonHostID')) { |
my $allowed=0; |
| $button=0; |
foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } } |
| $switchserver=&Apache::lonnet::escape('http://'. |
if (!$allowed) { |
| $Apache::lonnet::hostname{$home}. |
$button=0; |
| '/adm/login?domain='.$ENV{'user.domain'}. |
$switchserver='otherserver='.$home.'&role='.$trolecode; |
| '&username='.$ENV{'user.name'}. |
|
| '&firsturl=/priv/'.$ENV{'user.name'}); |
|
| } |
} |
| #next if ($home eq 'no_host'); |
#next if ($home eq 'no_host'); |
| $home = $Apache::lonnet::hostname{$home}; |
$home = &Apache::lonnet::hostname($home); |
| $ttype='Construction Space'; |
$ttype='Construction Space'; |
| $twhere='Domain: '.$tdom.'<br />Server: '.$home; |
$twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server'). |
| $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca'; |
': '.$home; |
| |
$env{'course.'.$tdom.'_'.$trest.'.description'}='ca'; |
| |
$tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/'); |
| |
$sortkey=$role; |
| } elsif ($trest) { |
} elsif ($trest) { |
| $ttype='Course'; |
|
| if ($tsection) { |
|
| $ttype.='<br>Section/Group: '.$tsection; |
|
| } |
|
| my $tcourseid=$tdom.'_'.$trest; |
my $tcourseid=$tdom.'_'.$trest; |
| if ($ENV{'course.'.$tcourseid.'.description'}) { |
$ttype = &Apache::loncommon::course_type($tcourseid); |
| $twhere=$ENV{'course.'.$tcourseid.'.description'}; |
$trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid); |
| unless ($twhere eq 'Currently not available') { |
if ($env{'course.'.$tcourseid.'.description'}) { |
| $twhere.=' <font size="-2">'. |
my $home=$env{'course.'.$tcourseid.'.home'}; |
| &Apache::loncommon::syllabuswrapper('Syllabus',$trest,$tdom,$tfont). |
$twhere=$env{'course.'.$tcourseid.'.description'}; |
| '</font>'; |
$sortkey=$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,$switchwarning) = |
| |
&check_release_required($loncaparev,$tcourseid,$trolecode,$required); |
| |
if ($switchserver || $switchwarning) { |
| |
$button = 0; |
| |
} |
| |
} |
| |
} |
| |
} |
| } else { |
} else { |
| my %newhash=Apache::lonnet::coursedescription |
my %newhash=&Apache::lonnet::coursedescription($tcourseid); |
| ($tcourseid); |
|
| if (%newhash) { |
if (%newhash) { |
| $twhere=$newhash{'description'}. |
$sortkey=$role."\0".$tdom."\0".$newhash{'description'}. |
| ' <font size="-2">'. |
"\0".$envkey; |
| &Apache::loncommon::syllabuswrapper('Syllabus',$trest,$tdom,$tfont). |
$twhere=&HTML::Entities::encode($newhash{'description'},'"<>&'). |
| '</font>'; |
' <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) = |
| |
&check_release_required($loncaparev,$tcourseid,$trolecode,$required); |
| |
if ($switchserver || $switchwarning) { |
| |
$button = 0; |
| |
} |
| |
} |
| |
} |
| } else { |
} else { |
| $twhere='Currently not available'; |
$twhere=&mt('Currently not available'); |
| $ENV{'course.'.$tcourseid.'.description'}=$twhere; |
$env{'course.'.$tcourseid.'.description'}=$twhere; |
| |
$sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey; |
| |
$ttype = 'Unavailable'; |
| } |
} |
| } |
} |
| if ($role ne 'st') { $twhere.="<br />Domain:".$tdom; } |
if ($tsection) { |
| |
$twhere.='<br />'.&mt('Section').': '.$tsection; |
| |
} |
| |
if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; } |
| } elsif ($tdom) { |
} elsif ($tdom) { |
| $ttype='Domain'; |
$ttype='Domain'; |
| $twhere=$tdom; |
$twhere=$tdom; |
| |
$sortkey=$role.$twhere; |
| } else { |
} else { |
| $ttype='System'; |
$ttype='System'; |
| $twhere='system wide'; |
$twhere=&mt('system wide'); |
| |
$sortkey=$role.$twhere; |
| } |
} |
| |
($role_text,$role_text_end) = |
| $r->print('<tr bgcolor='.$tbg.'>'); |
&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain, |
| unless ($nochoose) { |
$advanced,$tremark,$tbg,$trole,$twhere,$tpstart, |
| if (!$button) { |
$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning); |
| if ($switchserver) { |
$roletext->{$envkey}=[$role_text,$role_text_end]; |
| $r->print('<td><a href="/adm/logout?handover='. |
if (!$sortkey) {$sortkey=$twhere."\0".$envkey;} |
| $switchserver.'">Switch Server</a></td>'); |
$sortrole->{$sortkey}=$envkey; |
| } else { |
$roleclass->{$envkey}=$ttype; |
| $r->print('<td> </td>'); |
} |
| |
} |
| |
} |
| |
return ($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} = $domdefaults{'timezone_def'}; |
| |
} |
| } |
} |
| } elsif ($tstatus eq 'is') { |
$timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom}; |
| $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 { |
} else { |
| $r->print('<td> </td>'); |
$timezones->{$cdom.'_'.$cnum} = |
| |
&Apache::lonlocal::gettimezone($tz); |
| } |
} |
| } |
} |
| $r->print('<td><font color="'.$tfont.'">'.$trole. |
$timezone = $timezones->{$cdom.'_'.$cnum}; |
| '</font></td><td><font color="'.$tfont.'">'.$ttype. |
} |
| '</font></td><td><font color="'.$tfont.'">'.$twhere. |
} else { |
| '</font></td><td><font color="'.$tfont.'">'.$tpstart. |
my ($tdom) = ($where =~ m{^/($match_domain)}); |
| '</font></td><td><font color="'.$tfont.'">'.$tpend. |
if ($tdom) { |
| '</font></td><td><font color="'.$tfont.'">'.$tremark. |
if (!exists($timezones->{$tdom})) { |
| ' </font></td></tr>'."\n"); |
my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom); |
| } |
if ($domdefaults{'timezone_def'} eq '') { |
| |
$timezones->{$tdom} = 'local'; |
| |
} else { |
| |
$timezones->{$tdom} = $domdefaults{'timezone_def'}; |
| |
} |
| |
} |
| |
$timezone = $timezones->{$tdom}; |
| |
} |
| |
} |
| |
if ($timezone eq 'local') { |
| |
$timezone = undef; |
| } |
} |
| } |
} |
| my $tremark=''; |
return $timezone; |
| my $tfont='#003300'; |
} |
| if ($ENV{'request.role'} eq 'cm') { |
|
| $r->print('<tr bgcolor="#11CC55">'); |
sub roletable_headers { |
| $tremark='Currently selected.'; |
my ($r,$roleclass,$sortrole,$nochoose) = @_; |
| $tfont='#002200'; |
my $doheaders; |
| } else { |
if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) { |
| $r->print('<tr bgcolor="#77FF77">'); |
$r->print('<br />' |
| |
.&Apache::loncommon::start_data_table() |
| |
.&Apache::loncommon::start_data_table_header_row() |
| |
); |
| |
if (!$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) { $doheaders++; } |
| |
} |
| } |
} |
| unless ($nochoose) { |
return $doheaders; |
| if ($ENV{'request.role'} ne 'cm') { |
} |
| $r->print('<td><input type=submit value=Select name="cm"></td>'); |
|
| } else { |
sub roletypes { |
| $r->print('<td> </td>'); |
my @types = ('Domain','Construction Space','Course','Community','Unavailable','System'); |
| } |
return @types; |
| |
} |
| |
|
| |
sub print_rolerows { |
| |
my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_; |
| |
if ((ref($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->{$which} =~ m-dc\./($match_domain)/-) { |
| |
if (ref($dcroles) eq 'HASH') { |
| |
if ($dcroles->{$1}) { |
| |
$output .= &adhoc_roles_row($1,''); |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if ($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); |
| |
} |
| |
} |
| } |
} |
| $r->print('<td colspan=5><font color="'.$tfont.'">No role specified'. |
} |
| '</font></td><td><font color="'.$tfont.'">'.$tremark. |
|
| ' </font></td></tr>'."\n"); |
|
| |
|
| $r->print('</table>'); |
sub findcourse_advice { |
| unless ($nochoose) { |
my ($r) = @_; |
| $r->print("</form>\n"); |
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'})) { |
| |
$r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$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> |
| |
</ul>'); |
| |
} else { |
| |
$r->print(&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'<br />'); |
| } |
} |
| # ------------------------------------------------------------ Privileges Info |
$r->print('<h3>'.&mt('Self-Enrollment').'</h3>'. |
| if (($advanced) && (($ENV{'user.error.msg'}) || ($error))) { |
'<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('<hr><h2>Current Privileges</h2>'); |
$r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'. |
| |
&Apache::loncoursequeueadmin::queued_selfenrollment()); |
| |
return; |
| |
} |
| |
|
| |
sub requestcourse_advice { |
| |
my ($r) = @_; |
| |
my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description'); |
| |
my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&'); |
| |
my (%can_request,%request_doms); |
| |
&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')) { |
| |
$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>'); |
| |
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}})); |
| |
$r->print( |
| |
'<li>' |
| |
.&mt('[_1]'.$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'; |
| |
} |
| |
$r->print('</ul>'.&mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.','<a href="'.$requrl.'">','</a>').'</p>'); |
| |
} |
| |
} |
| |
return; |
| |
} |
| |
|
| foreach $envkey (sort keys %ENV) { |
sub privileges_info { |
| if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) { |
my ($which) = @_; |
| my $where=$envkey; |
my $output; |
| $where=~s/^user\.priv\.$ENV{'request.role'}\.//; |
|
| my $ttype; |
$which ||= $env{'request.role'}; |
| my $twhere; |
|
| my ($tdom,$trest,$tsec)= |
foreach my $envkey (sort(keys(%env))) { |
| split(/\//,Apache::lonnet::declutter($where)); |
next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/); |
| if ($trest) { |
|
| if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') { |
my $where=$1; |
| $ttype='Construction Space'; |
my $ttype; |
| $twhere='User: '.$trest.', Domain: '.$tdom; |
my $twhere; |
| } else { |
my (undef,$tdom,$trest,$tsec)=split(m{/},$where); |
| $ttype='Course'; |
if ($trest) { |
| $twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'}; |
if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') { |
| if ($tsec) { |
$ttype='Construction Space'; |
| $twhere.=' (Section/Group: '.$tsec.')'; |
$twhere='User: '.$trest.', Domain: '.$tdom; |
| } |
} else { |
| } |
$ttype= &Apache::loncommon::course_type($tdom.'_'.$trest); |
| } elsif ($tdom) { |
$twhere=$env{'course.'.$tdom.'_'.$trest.'.description'}; |
| $ttype='Domain'; |
if ($tsec) { |
| $twhere=$tdom; |
my $sec_type = 'Section'; |
| } else { |
if (exists($env{"user.role.gr.$where"})) { |
| $ttype='System'; |
$sec_type = 'Group'; |
| $twhere='/'; |
|
| } |
|
| $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>'); |
|
| foreach (sort split(/:/,$ENV{$envkey})) { |
|
| if ($_) { |
|
| 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>'); |
|
| } |
} |
| |
$twhere.=' ('.$sec_type.': '.$tsec.')'; |
| } |
} |
| $r->print('</ul>'); |
|
| } |
} |
| |
} elsif ($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; |
| |
} |
| |
|
| $r->print("</body></html>\n"); |
sub build_roletext { |
| return OK; |
my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning) = @_; |
| } |
my ($roletext,$roletext_end); |
| |
my $is_dc=($trolecode =~ m/^dc\./); |
| |
my $rowspan=($is_dc) ? '' |
| |
: ' 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)\./) { |
| |
$tremark.=&Apache::lonannounce::showday(time,1, |
| |
&Apache::lonannounce::readcalendar($tdom.'_'.$trest)); |
| |
} |
| |
$roletext.='<td>'.$trole.'</td>' |
| |
.'<td>'.$twhere.'</td>' |
| |
.'<td>'.$tpstart.'</td>' |
| |
.'<td>'.$tpend.'</td>'; |
| |
if (!$is_dc) { |
| |
$roletext_end = '<td colspan="4">'. |
| |
$tremark.' '. |
| |
'</td>'; |
| |
} |
| |
return ($roletext,$roletext_end); |
| |
} |
| |
|
| |
sub check_needs_switchserver { |
| |
my ($possiblerole) = @_; |
| |
my $needs_switchserver; |
| |
my ($role,$where) = split(/\./,$possiblerole,2); |
| |
my (undef,$tdom,$twho) = split(/\//,$where); |
| |
my ($server_status,$home); |
| |
if (($role eq 'ca') || ($role eq 'aa')) { |
| |
($server_status,$home) = &check_author_homeserver($twho,$tdom); |
| |
} else { |
| |
($server_status,$home) = &check_author_homeserver($env{'user.name'}, |
| |
$env{'user.domain'}); |
| |
} |
| |
if ($server_status eq 'switchserver') { |
| |
$needs_switchserver = 1; |
| |
} |
| |
return $needs_switchserver; |
| |
} |
| |
|
| |
sub check_author_homeserver { |
| |
my ($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_fordc { |
| |
my ($dcroles,$then) = @_; |
| |
my $numdc = 0; |
| |
if ($env{'user.adv'}) { |
| |
foreach my $envkey (sort keys %env) { |
| |
if ($envkey=~/^user\.role\.dc\.\/($match_domain)\/$/) { |
| |
my $dcdom = $1; |
| |
my $livedc = 1; |
| |
my ($tstart,$tend)=split(/\./,$env{$envkey}); |
| |
if ($tstart && $tstart>$then) { $livedc = 0; } |
| |
if ($tend && $tend <$then) { $livedc = 0; } |
| |
if ($livedc) { |
| |
$$dcroles{$dcdom} = $envkey; |
| |
$numdc++; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
return $numdc; |
| |
} |
| |
|
| |
sub adhoc_course_role { |
| |
my ($refresh,$then) = @_; |
| |
my ($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,$then,$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 && $end<$then)) { |
| |
$setprivs = 1; |
| |
} |
| |
} |
| |
if ($setprivs) { |
| |
if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)([\w/]*)\./\Q$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); |
| |
foreach my $group (keys(%cgroups)) { |
| |
$group_privs{$group} = |
| |
$env{'user.priv.cc./'.$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; |
| |
} |
| |
&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,$refresh,$then,$crstype) = @_; |
| |
my ($is_cc,$ccrole); |
| |
if ($crstype eq 'Community') { |
| |
$ccrole = 'co'; |
| |
} else { |
| |
$ccrole = 'cc'; |
| |
} |
| |
if ($cdom ne '' && $cnum ne '') { |
| |
if (&Apache::lonnet::is_course($cdom,$cnum)) { |
| |
my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum; |
| |
if (defined($env{$envkey})) { |
| |
$is_cc = 1; |
| |
my ($tstart,$tend)=split(/\./,$env{$envkey}); |
| |
if ($tstart && $tstart>$refresh) { $is_cc = 0; } |
| |
if ($tend && $tend <$then) { $is_cc = 0; } |
| |
} |
| |
} |
| |
} |
| |
return $is_cc; |
| |
} |
| |
|
| |
sub check_release_required { |
| |
my ($loncaparev,$tcourseid,$trolecode,$required) = @_; |
| |
my ($switchserver,$warning); |
| |
if ($required ne '') { |
| |
my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/); |
| |
my ($major,$minor) = ($loncaparev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); |
| |
if ($reqdmajor ne '' && $reqdminor ne '') { |
| |
my $otherserver; |
| |
if (($major eq '' && $minor eq '') || |
| |
(($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) { |
| |
my ($userdomserver) = &Apache::lonnet::choose_server($env{'user.domain'}); |
| |
my $switchlcrev = |
| |
&Apache::lonnet::get_server_loncaparev($env{'user.domain'}, |
| |
$userdomserver); |
| |
my ($swmajor,$swminor) = ($switchlcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); |
| |
if (($swmajor eq '' && $swminor eq '') || ($reqdmajor > $swmajor) || |
| |
(($reqdmajor == $swmajor) && ($reqdminor > $swminor))) { |
| |
my $cdom = $env{'course.'.$tcourseid.'.domain'}; |
| |
if ($cdom ne $env{'user.domain'}) { |
| |
my ($coursedomserver,$coursehostname) = &Apache::lonnet::choose_server($cdom); |
| |
my $serverhomeID = &Apache::lonnet::get_server_homeID($coursehostname); |
| |
my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID); |
| |
my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom); |
| |
my %udomdefaults = &Apache::lonnet::get_domain_defaults($env{'user.domain'}); |
| |
my $remoterev = &Apache::lonnet::get_server_loncaparev($serverhomedom,$coursedomserver); |
| |
my $canhost = |
| |
&Apache::lonnet::can_host_session($env{'user.domain'}, |
| |
$coursedomserver, |
| |
$remoterev, |
| |
$udomdefaults{'remotesessions'}, |
| |
$defdomdefaults{'hostedsessions'}); |
| |
|
| |
if ($canhost) { |
| |
$otherserver = $coursedomserver; |
| |
} else { |
| |
$warning = &mt('Requires LON-CAPA version [_1].',$env{'course.'.$tcourseid.'.internal.releaserequired'}).'<br />'. &mt("No suitable server could be found amongst servers in either your own domain or in the course's domain."); |
| |
} |
| |
} else { |
| |
$warning = &mt('Requires LON-CAPA version [_1].',$env{'course.'.$tcourseid.'.internal.releaserequired'}).'<br />'.&mt("No suitable server could be found amongst servers in your own domain (which is also the course's domain)."); |
| |
} |
| |
} else { |
| |
$otherserver = $userdomserver; |
| |
} |
| |
} |
| |
if ($otherserver ne '') { |
| |
$switchserver = 'otherserver='.$otherserver.'&role='.$trolecode; |
| |
} |
| |
} |
| |
} |
| |
return ($switchserver,$warning); |
| |
} |
| |
|
| |
sub update_content_constraints { |
| |
my ($cdom,$cnum,$chome,$cid) = @_; |
| |
my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired'); |
| |
my ($reqdmajor,$reqdminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'}); |
| |
my %checkresponsetypes; |
| |
foreach my $key (keys(%Apache::lonnet::needsrelease)) { |
| |
my ($item,$name,$value) = split(/:/,$key); |
| |
if ($item eq 'resourcetag') { |
| |
if ($name eq 'responsetype') { |
| |
$checkresponsetypes{$value} = $Apache::lonnet::needsrelease{$key} |
| |
} |
| |
} |
| |
} |
| |
my $navmap = Apache::lonnavmaps::navmap->new(); |
| |
if (defined($navmap)) { |
| |
my %allresponses; |
| |
foreach my $res ($navmap->retrieveResources(undef,sub { $_[0]->is_problem() },1,0)) { |
| |
my %responses = $res->responseTypes(); |
| |
foreach my $key (keys(%responses)) { |
| |
next unless(exists($checkresponsetypes{$key})); |
| |
$allresponses{$key} += $responses{$key}; |
| |
} |
| |
} |
| |
foreach my $key (keys(%allresponses)) { |
| |
my ($major,$minor) = split(/\./,$checkresponsetypes{$key}); |
| |
if (($major > $reqdmajor) || ($major == $reqdmajor && $minor > $reqdminor)) { |
| |
($reqdmajor,$reqdminor) = ($major,$minor); |
| |
} |
| |
} |
| |
undef($navmap); |
| |
} |
| |
unless (($reqdmajor eq '') && ($reqdminor eq '')) { |
| |
&Apache::lonnet::update_released_required($reqdmajor.'.'.$reqdminor,$cdom,$cnum,$chome,$cid); |
| |
} |
| |
return; |
| |
} |
| |
|
| |
sub courselink { |
| |
my ($dcdom,$rowtype) = @_; |
| |
my $courseform=&Apache::loncommon::selectcourse_link |
| |
('rolechoice','dccourse'.$rowtype.'_'.$dcdom, |
| |
'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'. |
| |
$dcdom,$dcdom,undef,'Course/Community'); |
| |
my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'. |
| |
'<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'. |
| |
'<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'. |
| |
'<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />'; |
| |
return $courseform.$hiddenitems; |
| |
} |
| |
|
| |
sub coursepick_jscript { |
| |
my %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.', |
| |
); |
| |
my $verify_script = <<"END"; |
| |
<script type="text/javascript"> |
| |
// <![CDATA[ |
| |
function verifyCoursePick(caller) { |
| |
var numbutton = getIndex(caller) |
| |
var pickedCourse = document.rolechoice.elements[numbutton+4].value |
| |
var pickedDomain = document.rolechoice.elements[numbutton+2].value |
| |
if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) { |
| |
if (pickedCourse != '') { |
| |
if (numbutton != -1) { |
| |
var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse |
| |
document.rolechoice.elements[numbutton+1].name = courseTarget |
| |
document.rolechoice.submit() |
| |
} |
| |
} |
| |
else { |
| |
alert("$lt{'plsu'}"); |
| |
} |
| |
} |
| |
else { |
| |
alert("$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 $tbg='LC_roles_is'; |
| |
my %newhash=&Apache::lonnet::coursedescription($tcourseid); |
| |
if (%newhash) { |
| |
$twhere=$newhash{'description'}. |
| |
' <span style="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; |
| |
} |
| |
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,''); |
| |
} |
| |
} |
| |
return ($roletext,$roletext_end); |
| |
} |
| |
|
| |
sub adhoc_roles_row { |
| |
my ($dcdom,$rowtype) = @_; |
| |
my $output = &Apache::loncommon::continue_data_table_row() |
| |
.' <td colspan="5">' |
| |
.&mt('[_1]Ad hoc[_2] roles in domain [_3] --' |
| |
,'<span class="LC_cusr_emph">','</span>',$dcdom) |
| |
.' '; |
| |
my $selectcclink = &courselink($dcdom,$rowtype); |
| |
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 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; |
| |
} |
| |
|
| 1; |
1; |
| __END__ |
__END__ |
|
Line 542 Invoked by /etc/httpd/conf/srm.conf:
|
Line 1817 Invoked by /etc/httpd/conf/srm.conf:
|
| ErrorDocument 500 /adm/errorhandler |
ErrorDocument 500 /adm/errorhandler |
| </Location> |
</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 |
=head1 INTRODUCTION |
| |
|
| This module enables a user to select what role he wishes to |
This module enables a user to select what role he wishes to |
![[BACK]](/icons/back.gif){kind=icon}
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![[DIR]](/icons/dir.gif){kind=icon}
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