--- loncom/auth/lonroles.pm 2000/06/12 18:25:03 1.3
+++ loncom/auth/lonroles.pm 2010/01/02 19:14:29 1.231.4.9
@@ -1,85 +1,1747 @@
# The LearningOnline Network with CAPA
# User Roles Screen
-# (Directory Indexer
-# (Login Screen
-# 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer)
-# 11/23 Gerd Kortemeyer)
-# 1/14,03/06,06/01 Gerd Kortemeyer
#
+# $Id: lonroles.pm,v 1.231.4.9 2010/01/02 19:14:29 raeburn Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+###
+
+=pod
+
+=head1 NAME
+
+Apache::lonroles - User Roles Screen
+
+=head1 SYNOPSIS
+
+Invoked by /etc/httpd/conf/srm.conf:
+
+ $msg '.&mt('The following problems occurred:').
+ ' '
+ .&mt('Could not initialize [_1] at this time.',
+ $env{'course.'.$cdom.'_'.$cnum.'.description'})
+ .' '.&mt('Please try again.').' '.$ferr.'
'.
+ $error.
+ '
'.&mt('Continue').''.
+ &Apache::loncommon::end_page());
+}
-# --------------------------------------------------- Read Plain Text for Roles
+sub handler {
+
+ my $r = shift;
+
+ my $now=time;
+ my $then=$env{'user.login.time'};
+ my $refresh=$env{'user.refresh.time'};
+ if (!$refresh) {
+ $refresh = $then;
+ }
+ my $envkey;
+ my %dcroles = ();
+ my $numdc = &check_fordc(\%dcroles,$then);
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
+
+# ================================================================== Roles Init
+ if ($env{'form.selectrole'}) {
+
+ my $locknum=&Apache::lonnet::get_locks();
+ if ($locknum) { return 409; }
+
+ if ($env{'form.newrole'}) {
+ $env{'form.'.$env{'form.newrole'}}=1;
+ }
+ if ($env{'request.course.id'}) {
+ # Check if user is CC trying to select a course role
+ if ($env{'form.switchrole'}) {
+ if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
+ &adhoc_course_role($refresh,$then);
+ }
+ }
+ my %temp=('logout_'.$env{'request.course.id'} => time);
+ &Apache::lonnet::put('email_status',\%temp);
+ &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
+ }
+ &Apache::lonnet::appenv({"request.course.id" => '',
+ "request.course.fn" => '',
+ "request.course.uri" => '',
+ "request.course.sec" => '',
+ "request.role" => 'cm',
+ "request.role.adv" => $env{'user.adv'},
+ "request.role.domain" => $env{'user.domain'}});
+# Check if user is a DC trying to enter a course or author space and needs privs to be created
+ if ($numdc > 0) {
+ foreach my $envkey (keys %env) {
+# Is this an ad-hoc CC-role?
+ if (my ($domain,$coursenum) =
+ ($envkey =~ m-^form\.cc\./($match_domain)/($match_courseid)$-)) {
+ if ($dcroles{$domain}) {
+ &Apache::lonnet::check_adhoc_privs($domain,$coursenum,
+ $then,$refresh,$now,'cc');
+ }
+ last;
+ }
+# Is this an ad-hoc CA-role?
+ if (my ($domain,$user) =
+ ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
+ if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
+ delete($env{$envkey});
+ $env{'form.au./'.$domain.'/'} = 1;
+ my ($server_status,$home) = &check_author_homeserver($user,$domain);
+ if ($server_status eq 'switchserver') {
+ my $trolecode = 'au./'.$domain.'/';
+ my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
+ $r->internal_redirect($switchserver);
+ }
+ last;
+ }
+ if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
+ if (((($castart) && ($castart < $now)) || !$castart) &&
+ ((!$caend) || (($caend) && ($caend > $now)))) {
+ my ($server_status,$home) = &check_author_homeserver($user,$domain);
+ if ($server_status eq 'switchserver') {
+ my $trolecode = 'ca./'.$domain.'/'.$user;
+ my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
+ $r->internal_redirect($switchserver);
+ }
+ last;
+ }
+ }
+ # Check if author blocked ca-access
+ my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
+ if ($blocked{'domcoord.author'} eq 'blocked') {
+ delete($env{$envkey});
+ $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
+ last;
+ }
+ if ($dcroles{$domain}) {
+ my ($server_status,$home) = &check_author_homeserver($user,$domain);
+ if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
+ &Apache::lonnet::check_adhoc_privs($domain,$user,$then,
+ $refresh,$now,'ca');
+ if ($server_status eq 'switchserver') {
+ my $trolecode = 'ca./'.$domain.'/'.$user;
+ my $switchserver = '/adm/switchserver?'
+ .'otherserver='.$home.'&role='.$trolecode;
+ $r->internal_redirect($switchserver);
+ }
+ } else {
+ delete($env{$envkey});
+ }
+ } else {
+ delete($env{$envkey});
+ }
+ last;
+ }
+ }
+ }
+
+ foreach $envkey (keys %env) {
+ next if ($envkey!~/^user\.role\./);
+ my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
+ &Apache::lonnet::role_status($envkey,$then,$refresh,$now,\$role,\$where,
+ \$trolecode,\$tstatus,\$tstart,\$tend);
+ if ($env{'form.'.$trolecode}) {
+ if ($tstatus eq 'is') {
+ $where=~s/^\///;
+ my ($cdom,$cnum,$csec)=split(/\//,$where);
+# check for course groups
+ my %coursegroups = &Apache::lonnet::get_active_groups(
+ $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
+ my $cgrps = join(':',keys(%coursegroups));
+
+# store role if recent_role list being kept
+ if ($env{'environment.recentroles'}) {
+ my %frozen_roles =
+ &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
+ &Apache::lonhtmlcommon::store_recent('roles',
+ $trolecode,' ',$frozen_roles{$trolecode});
+ }
- my $tabdir = $r->dir_config('lonTabDir');
- my @rolesplain;
- my %plain;
+# check for keyed access
+ if (($role eq 'st') &&
+ ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
+# who is key authority?
+ my $authdom=$cdom;
+ my $authnum=$cnum;
+ if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
+ ($authnum,$authdom)=
+ split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
+ }
+# check with key authority
+ unless (&Apache::lonnet::validate_access_key(
+ $env{'environment.key.'.$cdom.'_'.$cnum},
+ $authdom,$authnum)) {
+# there is no valid key
+ if ($env{'form.newkey'}) {
+# student attempts to register a new key
+ &Apache::loncommon::content_type($r,'text/html');
+ &Apache::loncommon::no_cache($r);
+ $r->send_http_header;
+ my $swinfo=&Apache::lonmenu::rawconfig();
+ my $start_page=&Apache::loncommon::start_page
+ ('Verifying Access Key to Unlock this Course');
+ my $end_page=&Apache::loncommon::end_page();
+ my $buttontext=&mt('Enter Course');
+ my $message=&mt('Successfully registered key');
+ my $assignresult=
+ &Apache::lonnet::assign_access_key(
+ $env{'form.newkey'},
+ $authdom,$authnum,
+ $cdom,$cnum,
+ $env{'user.domain'},
+ $env{'user.name'},
+ &mt('Assigned from [_1] at [_2] for [_3]'
+ ,$ENV{'REMOTE_ADDR'}
+ ,&Apache::lonlocal::locallocaltime()
+ ,$trolecode)
+ );
+ unless ($assignresult eq 'ok') {
+ $assignresult=~s/^error\:\s*//;
+ $message=&mt($assignresult).
+ '
'.
+ &mt('Logout').'';
+ $buttontext=&mt('Re-Enter Key');
+ }
+ $r->print(<
'.&mt('As this is not the case, most functionality in the system will be unavailable.').'
';
+
$r->print(<
+
+
ENDHEADER
# ------------------------------------------ Get Error Message from Environment
- my ($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'}) {
+ $r->log_reason(
+ "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
+ }
+
+# ------------------------------------------------- Can this user re-init, etc?
-# -------------------------------------------------------- Generate Page Output
+ my $advanced=$env{'user.adv'};
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
+ my $tryagain=$env{'form.tryagain'};
+ my $reinit=$env{'user.reinit'};
+ delete $env{'user.reinit'};
+# -------------------------------------------------------- Generate Page Output
+# --------------------------------------------------------------- Error Header?
if ($error) {
- $r->print("LON-CAPA Access Control
");
- $r->print("Access : $plain{$priv}
");
- $r->print("Resource: $fn
");
- $r->print("Action : $msg
");
- $r->log_reason(
- "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
+ $r->print("".&mt('LON-CAPA Access Control')."
");
+ $r->print("");
+ if ($priv ne '') {
+ $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
+ }
+ if ($fn ne '') {
+ $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
+ }
+ if ($msg ne '') {
+ $r->print(&mt('Action : ').$msg."\n");
+ }
+ $r->print("
");
+ 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 {
- $r->print("LON-CAPA User Roles
");
+ if ($env{'user.error.msg'}) {
+ if ($reinit) {
+ $r->print(
+ ''.
+ &mt('As your session file for the course or community has expired, you will need to re-select the course.').'
');
+ } else {
+ $r->print(
+ ''.
+ &mt('You need to choose another user role or enter a specific course or community for this function.').
+ '
');
+ }
+ }
}
-
+# -------------------------------------------------------- Choice or no choice?
if ($nochoose) {
- $r->print("Assigned User Roles
");
+ $r->print("".&mt('Sorry ...')."
\n".
+ &mt('This action is currently not authorized.').''.
+ &Apache::loncommon::end_page());
+ return OK;
} else {
- $r->print("Select a User Role
\n");
- $r->print('');
+ if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
+ $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
+ }
+ $r->print('
'
+ .&mt('[_1]Visit the [_2]Course/Community Catalog[_3]'
+ .' to view all [_4] LON-CAPA courses and communities.'
+ ,''
+ ,''
+ ,'',$domdesc)
+ .'
'
+ .&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.'
+ ,'','')
+ .'