--- loncom/auth/lonacc.pm 2008/11/29 10:34:30 1.122
+++ loncom/auth/lonacc.pm 2023/08/28 20:40:00 1.210
@@ -1,7 +1,7 @@
# The LearningOnline Network
# Cookie Based Access Handler
#
-# $Id: lonacc.pm,v 1.122 2008/11/29 10:34:30 raeburn Exp $
+# $Id: lonacc.pm,v 1.210 2023/08/28 20:40:00 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -89,8 +89,6 @@ store attempted access
=head1 NOTABLE SUBROUTINES
-=over
-
=cut
@@ -103,15 +101,15 @@ use Apache::lonnet;
use Apache::loncommon();
use Apache::lonlocal;
use Apache::restrictedaccess();
-use Apache::blockedaccess();
+use Apache::blockedaccess();
+use Apache::lonprotected();
use Fcntl qw(:flock);
-use LONCAPA;
+use LONCAPA qw(:DEFAULT :match);
sub cleanup {
my ($r)=@_;
if (! $r->is_initial_req()) { return DECLINED; }
&Apache::lonnet::save_cache();
- &Apache::lontexconvert::jsMath_reset();
return OK;
}
@@ -156,7 +154,16 @@ sub get_posted_cgi {
for ($i=0;$i<=$#lines;$i++) {
if ($lines[$i]=~/^--\Q$contentsep\E/) {
if ($name) {
- chomp($value);
+ chomp($value);
+ if (($r->uri eq '/adm/portfolio') &&
+ ($name eq 'uploaddoc')) {
+ if (length($value) == 1) {
+ $value=~s/[\r\n]$//;
+ }
+ }
+ if ($fname =~ /\.(xls|doc|ppt)(x|m)$/i) {
+ $value=~s/[\r\n]$//;
+ }
if (ref($fields) eq 'ARRAY') {
next if (!grep(/^\Q$name\E$/,@{$fields}));
}
@@ -197,6 +204,14 @@ sub get_posted_cgi {
$fname='';
$fmime='';
}
+ if ($i<$#lines && $lines[$i+1]=~/^Content\-Type\:\s*([\w\-\/]+)/i) {
+ # TODO: something with $1 !
+ $i++;
+ }
+ if ($i<$#lines && $lines[$i+1]=~/^Content\-transfer\-encoding\:\s*([\w\-\/]+)/i) {
+ # TODO: something with $1 !
+ $i++;
+ }
$i++;
}
} else {
@@ -224,6 +239,8 @@ sub get_posted_cgi {
=pod
+=over
+
=item upload_size_allowed()
Perform size checks for file uploads to essayresponse items in course context.
@@ -242,7 +259,7 @@ sub upload_size_allowed {
&Apache::loncommon::add_to_env("form.$item",$savesize);
my $maxsize= &Apache::lonnet::EXT("resource.$ident.maxfilesize");
if (!$maxsize) {
- $maxsize = 100.0;
+ $maxsize = 10.0; # FIXME This should become a domain configuration.
}
if ($size > $maxsize) {
my $warn = 'HWFILETOOBIG'.$ident;
@@ -258,50 +275,366 @@ sub upload_size_allowed {
=item sso_login()
handle the case of the single sign on user, at this point $r->user
- will be set and valid now need to find the loncapa user info and possibly
- balance them
- returns OK if it was a SSO and user was handled
- undef if not SSO or no means to hanle the user
+ will be set and valid; now need to find the loncapa user info, and possibly
+ balance them. If $r->user() is set this means either it was either set by
+ SSO or by checkauthen.pm, if a valid cookie was found. The latter case can
+ be identified by the third arg ($usename), except when lonacc is called in
+ an internal redirect to /adm/switchserver (e.g., load-balancing following
+ successful authentication) -- no cookie set yet. For that particular case
+ simply skip the call to sso_login().
+
+ returns OK if it was SSO and user was handled.
+ returns undef if not SSO or no means to handle the user.
+
+ In the case where the session was started from /adm/launch/tiny/$domain/$id,
+ i.e., for a protected link, with launch from another CMS, and user information
+ is accepted from the LTI payload, then, if the user has privileged roles,
+ authentication will be required. If SSO authentication is with a username
+ and/or domain that differ from the username in the LTI payload and domain
+ in the launch URL, then $r->user() will be unset and /adm/relaunch will be
+ called.
=cut
sub sso_login {
- my ($r,$handle) = @_;
+ my ($r,$handle,$username) = @_;
- my $lonidsdir=$r->dir_config('lonIDsDir');
- if (!($r->user
- && (!defined($env{'user.name'}) && !defined($env{'user.domain'}))
- && ($handle eq ''))) {
+ if (($r->user eq '') || ($username ne '') || ($r->user eq 'public:public') ||
+ (defined($env{'user.name'}) && (defined($env{'user.domain'}))
+ && ($handle ne ''))) {
# not an SSO case or already logged in
return undef;
}
- my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/);
+ my ($user) = ($r->user =~ m/^($match_username)$/);
+ if ($user eq '') {
+ return undef;
+ }
- my $domain = $r->dir_config('lonDefDomain');
+ my $query = $r->args;
+ my %form;
+ if ($query) {
+ my @items = ('role','symb','iptoken','origurl','ttoken',
+ 'ltoken','linkkey','logtoken','sso','lcssowin');
+ &Apache::loncommon::get_unprocessed_cgi($query,\@items);
+ foreach my $item (@items) {
+ if (defined($env{'form.'.$item})) {
+ $form{$item} = $env{'form.'.$item};
+ }
+ }
+ }
+
+ my %sessiondata;
+ if ($form{'iptoken'}) {
+ %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
+ my $delete = &Apache::lonnet::tmpdel($form{'iptoken'});
+ unless ($sessiondata{'sessionserver'}) {
+ delete($form{'iptoken'});
+ }
+ }
+
+ my ($linkprot,$linkprotuser,$linkprotexit,$linkkey,$deeplinkurl,
+ $linkprotpbid,$linkprotpburl);
+
+#
+# If Shibboleth auth is in use, and a dual SSO and non-SSO login page
+# is in use, then the query string will contain the logtoken item with
+# a value set to the name of a .tmp file in /home/httpd/perl/tmp
+# containing the url to display after authentication, and also,
+# optionally, role and symb, or linkprot or linkkey (deep-link access).
+#
+# If Shibboleth auth is in use, but a dual log-in page is not in use,
+# and the originally requested URL was /tiny/$domain/$id (i.e.,
+# for deeplinking), then the query string will contain the sso item
+# with a value set to the name of a .tmp file in /home/httpd/perl/tmp
+# containing the url to display after authentication, and also,
+# optionally, linkprot or linkkey (deep-link access).
+#
+# Otherwise the query string may contain role and symb, or if the
+# originally requested URL was /tiny/$domain/$id (i.e. for deeplinking)
+# then the query string may contain a ttoken item with a value set
+# to the name of a .tmp file in /home/httpd/perl/tmp containing either
+# linkprot or linkkey (deep-link access).
+#
+# If deep-linked, i.e., the originally requested URL was /tiny/$domain/$id
+# the linkkey may have originally been sent in POSTed data, which will
+# have been processed in lontrans.pm
+#
+
+ if ($form{'ttoken'}) {
+ my %info = &Apache::lonnet::tmpget($form{'ttoken'});
+ &Apache::lonnet::tmpdel($form{'ttoken'});
+ if ($info{'origurl'}) {
+ $form{'origurl'} = $info{'origurl'};
+ if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
+ $deeplinkurl = $form{'origurl'};
+ }
+ }
+ if ($info{'linkprot'}) {
+ $linkprot = $info{'linkprot'};
+ $linkprotuser = $info{'linkprotuser'};
+ $linkprotexit = $info{'linkprotexit'};
+ $linkprotpbid = $info{'linkprotpbid'};
+ $linkprotpburl = $info{'linkprotpburl'};
+ } elsif ($info{'linkkey'} ne '') {
+ $linkkey = $info{'linkkey'};
+ }
+ } elsif ($form{'logtoken'}) {
+ my ($firsturl,@rest);
+ my $lonhost = $r->dir_config('lonHostID');
+ my $tmpinfo = &Apache::lonnet::reply('tmpget:'.$form{'logtoken'},$lonhost);
+ my $delete = &Apache::lonnet::tmpdel($form{'logtoken'});
+ unless (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost') ||
+ ($tmpinfo eq 'no_such_host')) {
+ (undef,$firsturl,@rest) = split(/&/,$tmpinfo);
+ if ($firsturl ne '') {
+ $firsturl = &unescape($firsturl);
+ }
+ foreach my $item (@rest) {
+ my ($key,$value) = split(/=/,$item);
+ $form{$key} = &unescape($value);
+ }
+ if ($firsturl =~ m{^/tiny/$match_domain/\w+$}) {
+ $form{'origurl'} = $firsturl;
+ $deeplinkurl = $firsturl;
+ } elsif ($firsturl eq '/adm/email') {
+ $form{'origurl'} = $firsturl;
+ }
+ if ($form{'linkprot'}) {
+ $linkprot = $form{'linkprot'};
+ $linkprotuser = $form{'linkprotuser'};
+ $linkprotexit = $form{'linkprotexit'};
+ $linkprotpbid = $form{'linkprotpbid'};
+ $linkprotpburl = $form{'linkprotpburl'};
+ } elsif ($form{'linkkey'} ne '') {
+ $linkkey = $form{'linkkey'};
+ }
+ if ($form{'iptoken'}) {
+ %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
+ my $delete = &Apache::lonnet::tmpdel($form{'iptoken'});
+ }
+ }
+ } elsif ($form{'sso'}) {
+ my $lonhost = $r->dir_config('lonHostID');
+ my $info = &Apache::lonnet::reply('tmpget:'.$form{'sso'},$lonhost);
+ &Apache::lonnet::tmpdel($form{'sso'});
+ unless (($info=~/^error/) || ($info eq 'con_lost') ||
+ ($info eq 'no_such_host')) {
+ my ($firsturl,@rest)=split(/\&/,$info);
+ if ($firsturl ne '') {
+ $form{'origurl'} = &unescape($firsturl);
+ if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
+ $deeplinkurl = $form{'origurl'};
+ }
+ }
+ foreach my $item (@rest) {
+ my ($key,$value) = split(/=/,$item);
+ $form{$key} = &unescape($value);
+ }
+ if ($form{'linkprot'}) {
+ $linkprot = $form{'linkprot'};
+ $linkprotuser = $form{'linkprotuser'};
+ $linkprotexit = $form{'linkprotexit'};
+ $linkprotpbid = $form{'linkprotpbid'};
+ $linkprotpburl = $form{'linkprotpburl'};
+ } elsif ($form{'linkkey'} ne '') {
+ $linkkey = $form{'linkkey'};
+ }
+ }
+ } elsif ($form{'ltoken'}) {
+ my %link_info = &Apache::lonnet::tmpget($form{'ltoken'});
+ $linkprot = $link_info{'linkprot'};
+ if ($linkprot) {
+ if ($link_info{'linkprotuser'} ne '') {
+ $linkprotuser = $link_info{'linkprotuser'};
+ }
+ if ($link_info{'linkprotexit'} ne '') {
+ $linkprotexit = $link_info{'linkprotexit'};
+ }
+ if ($link_info{'linkprotpbid'} ne '') {
+ $linkprotpbid = $link_info{'linkprotpbid'};
+ }
+ if ($link_info{'linkprotpburl'} ne '') {
+ $linkprotpburl = $link_info{'linkprotpburl'};
+ }
+ }
+ my $delete = &Apache::lonnet::tmpdel($form{'ltoken'});
+ delete($form{'ltoken'});
+ if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
+ $deeplinkurl = $form{'origurl'};
+ }
+ } elsif ($form{'linkkey'} ne '') {
+ $linkkey = $form{'linkkey'};
+ }
+
+ my $domain = $r->dir_config('lonSSOUserDomain');
+ if ($domain eq '') {
+ $domain = $r->dir_config('lonDefDomain');
+ }
+ if (($deeplinkurl) && ($linkprot) && ($linkprotuser ne '')) {
+ unless ($linkprotuser eq $user.':'.$domain) {
+ $r->user();
+ my %data = (
+ origurl => $deeplinkurl,
+ linkprot => $linkprot,
+ linkprotuser => $linkprotuser,
+ linkprotexit => $linkprotexit,
+ linkprotpbid => $linkprotpbid,
+ linkprotpburl => $linkprotpburl,
+ );
+ if ($env{'form.lcssowin'}) {
+ $data{'lcssowin'} = $env{'form.lcssowin'};
+ }
+ my $token = &Apache::lonnet::tmpput(\%data,$r->dir_config('lonHostID'),'link');
+ unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) ||
+ ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
+ $r->internal_redirect('/adm/relaunch?rtoken='.$token);
+ $r->set_handlers('PerlHandler'=> undef);
+ return OK;
+ }
+ }
+ }
my $home=&Apache::lonnet::homeserver($user,$domain);
if ($home !~ /(con_lost|no_host|no_such_host)/) {
&Apache::lonnet::logthis(" SSO authorized user $user ");
- if ($r->dir_config("lonBalancer") eq 'yes') {
- # login but immeaditly go to switch server to find us a new
+ my ($is_balancer,$otherserver,$hosthere);
+ if ($form{'iptoken'}) {
+ if (($sessiondata{'domain'} eq $domain) &&
+ ($sessiondata{'username'} eq $user)) {
+ $hosthere = 1;
+ }
+ }
+ unless ($hosthere) {
+ ($is_balancer,$otherserver) =
+ &Apache::lonnet::check_loadbalancing($user,$domain,'login');
+ if ($is_balancer) {
+ # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
+ my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r);
+ if (($found_server) && ($balancer_cookie =~ /^\Q$domain\E_\Q$user\E_/)) {
+ $otherserver = $found_server;
+ } elsif ($otherserver eq '') {
+ my $lowest_load;
+ ($otherserver,undef,undef,undef,$lowest_load) = &Apache::lonnet::choose_server($domain);
+ if ($lowest_load > 100) {
+ $otherserver = &Apache::lonnet::spareserver($r,$lowest_load,$lowest_load,1,$domain);
+ }
+ if ($otherserver ne '') {
+ my @hosts = &Apache::lonnet::current_machine_ids();
+ if (grep(/^\Q$otherserver\E$/,@hosts)) {
+ $hosthere = $otherserver;
+ }
+ }
+ }
+ }
+ }
+ if (($is_balancer) && (!$hosthere)) {
+ # login but immediately go to switch server to find us a new
# machine
&Apache::lonauth::success($r,$user,$domain,$home,'noredirect');
+ foreach my $item (keys(%form)) {
+ $env{'form.'.$item} = $form{$item};
+ }
+ unless (($form{'symb'}) || ($form{'origurl'})) {
+ unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
+ $env{'form.origurl'} = $r->uri;
+ }
+ }
+ if (($r->uri eq '/adm/sso') && ($form{'origurl'} =~ m{^/+tiny/+$match_domain/+\w+$})) {
+ $env{'request.deeplink.login'} = $form{'origurl'};
+ } elsif ($r->uri =~ m{^/+tiny/+$match_domain/+\w+$}) {
+ $env{'request.deeplink.login'} = $r->uri;
+ }
+ if ($env{'request.deeplink.login'}) {
+ if ($linkprot) {
+ $env{'request.linkprot'} = $linkprot;
+ if ($linkprotuser ne '') {
+ $env{'request.linkprotuser'} = $linkprotuser;
+ }
+ if ($linkprotexit ne '') {
+ $env{'request.linkprotexit'} = $linkprotexit;
+ }
+ if ($linkprotpbid ne '') {
+ $env{'request.linkprotpbid'} = $linkprotpbid;
+ }
+ if ($linkprotpburl ne '') {
+ $env{'request.linkprotpburl'} = $linkprotpburl;
+ }
+ } elsif ($linkkey ne '') {
+ $env{'request.linkkey'} = $linkkey;
+ }
+ }
+ if (($r->uri eq '/adm/sso') && ($form{'origurl'} eq '/adm/email')) {
+ if ($form{'display'} && ($env{'form.mailrecip'} eq $user.':'.$domain)) {
+ $env{'request.display'} = $form{'display'};
+ $env{'request.mailrecip'} = $env{'form.mailrecip'};
+ }
+ }
$env{'request.sso.login'} = 1;
if (defined($r->dir_config("lonSSOReloginServer"))) {
$env{'request.sso.reloginserver'} =
$r->dir_config('lonSSOReloginServer');
}
- $r->internal_redirect('/adm/switchserver');
+ my $redirecturl = '/adm/switchserver';
+ if ($otherserver ne '') {
+ $redirecturl .= '?otherserver='.$otherserver;
+ }
+ if ($form{'lcssowin'}) {
+ $redirecturl .= (($redirecturl=~/\?/)?'&':'?') . 'lcssowin=1';
+ }
+ $r->internal_redirect($redirecturl);
$r->set_handlers('PerlHandler'=> undef);
} else {
# need to login them in, so generate the need data that
# migrate expects to do login
- my %info=('ip' => $r->connection->remote_ip(),
+ my $ip = &Apache::lonnet::get_requestor_ip($r);
+ my %info=('ip' => $ip,
'domain' => $domain,
'username' => $user,
'server' => $r->dir_config('lonHostID'),
'sso.login' => 1
);
+ foreach my $item ('role','symb','iptoken','origurl','lcssowin') {
+ if (exists($form{$item})) {
+ $info{$item} = $form{$item};
+ } elsif ($sessiondata{$item} ne '') {
+ $info{$item} = $sessiondata{$item};
+ }
+ }
+ unless (($info{'symb'}) || ($info{'origurl'})) {
+ unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
+ $info{'origurl'} = $r->uri;
+ }
+ }
+ if (($r->uri eq '/adm/sso') && ($form{'origurl'} =~ m{^/+tiny/+$match_domain/+\w+$})) {
+ $info{'deeplink.login'} = $form{'origurl'};
+ } elsif ($r->uri =~ m{^/+tiny/+$match_domain/+\w+$}) {
+ $info{'deeplink.login'} = $r->uri;
+ }
+ if ($info{'deeplink.login'}) {
+ if ($linkprot) {
+ $info{'linkprot'} = $linkprot;
+ if ($linkprotuser ne '') {
+ $info{'linkprotuser'} = $linkprotuser;
+ }
+ if ($linkprotexit ne '') {
+ $info{'linkprotexit'} = $linkprotexit;
+ }
+ if ($linkprotpbid ne '') {
+ $info{'linkprotpbid'} = $linkprotpbid;
+ }
+ if ($linkprotpburl ne '') {
+ $info{'linkprotpburl'} = $linkprotpburl;
+ }
+ } elsif ($linkkey ne '') {
+ $info{'linkkey'} = $linkkey;
+ }
+ }
+ if (($r->uri eq '/adm/sso') && ($form{'origurl'} eq '/adm/email')) {
+ if ($form{'display'} && ($form{'mailrecip'} eq $user.':'.$domain)) {
+ $info{'display'} = &escape($form{'display'});
+ $info{'mailrecip'} = &escape($form{'mailrecip'});
+ }
+ }
if ($r->dir_config("ssodirecturl") == 1) {
$info{'origurl'} = $r->uri;
}
@@ -309,18 +642,17 @@ sub sso_login {
$info{'sso.reloginserver'} =
$r->dir_config('lonSSOReloginServer');
}
- my $token =
- &Apache::lonnet::tmpput(\%info,
- $r->dir_config('lonHostID'));
+ if (($is_balancer) && ($hosthere)) {
+ $info{'noloadbalance'} = $hosthere;
+ }
+ my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'sso');
$env{'form.token'} = $token;
$r->internal_redirect('/adm/migrateuser');
$r->set_handlers('PerlHandler'=> undef);
}
return OK;
- } elsif (defined($r->dir_config('lonSSOUserUnknownRedirect'))) {
+ } else {
&Apache::lonnet::logthis(" SSO authorized unknown user $user ");
- $r->subprocess_env->set('SSOUserUnknown' => $user);
- $r->subprocess_env->set('SSOUserDomain' => $domain);
my @cancreate;
my %domconfig =
&Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
@@ -334,13 +666,20 @@ sub sso_login {
}
}
}
- if (grep(/^sso$/,@cancreate)) {
- $r->internal_redirect('/adm/createaccount');
- } else {
- $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect'));
+ if ((grep(/^sso$/,@cancreate)) || (defined($r->dir_config('lonSSOUserUnknownRedirect')))) {
+ $r->subprocess_env->set('SSOUserUnknown' => $user);
+ $r->subprocess_env->set('SSOUserDomain' => $domain);
+ if (grep(/^sso$/,@cancreate)) {
+#FIXME - need to preserve origurl, role and symb, or linkprot or linkkey for use after account
+# creation. If lcssowin is 1, createaccount needs to close pop-up and display in main window.
+ $r->set_handlers('PerlHandler'=> [\&Apache::createaccount::handler]);
+ $r->handler('perl-script');
+ } else {
+ $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect'));
+ $r->set_handlers('PerlHandler'=> undef);
+ }
+ return OK;
}
- $r->set_handlers('PerlHandler'=> undef);
- return OK;
}
return undef;
}
@@ -348,25 +687,34 @@ sub sso_login {
sub handler {
my $r = shift;
my $requrl=$r->uri;
+
+ if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
+ return OK;
+ }
+
if (&Apache::lonnet::is_domainimage($requrl)) {
return OK;
}
- my $handle = &Apache::lonnet::check_for_valid_session($r);
+ my %user;
+ my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
- my $result = &sso_login($r,$handle);
- if (defined($result)) {
- return $result;
+ unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) {
+ my $result = &sso_login($r,$handle,$user{'name'});
+ if (defined($result)) {
+ return $result;
+ }
}
+ my ($is_balancer,$otherserver);
- if ($r->dir_config("lonBalancer") eq 'yes') {
- $r->set_handlers('PerlResponseHandler'=>
- [\&Apache::switchserver::handler]);
- }
-
if ($handle eq '') {
- $r->log_reason("Cookie $handle not valid", $r->filename);
+ unless ((($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) ||
+ ($requrl =~ m{^/public/$match_domain/$match_courseid/syllabus}) ||
+ ($requrl =~ m{^/adm/help/}) || ($requrl eq '/adm/sso') ||
+ ($requrl =~ m{^/res/$match_domain/$match_username/})) {
+ $r->log_reason("Cookie not valid", $r->filename);
+ }
} elsif ($handle ne '') {
# ------------------------------------------------------ Initialize Environment
@@ -383,6 +731,11 @@ sub handler {
if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') {
# -------------------------------------------------------------- Resource State
+ my ($cdom,$cnum);
+ if ($env{'request.course.id'}) {
+ $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+ $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+ }
if ($requrl=~/^\/+(res|uploaded)\//) {
$env{'request.state'} = "published";
} else {
@@ -390,15 +743,277 @@ sub handler {
}
$env{'request.filename'} = $r->filename;
$env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl);
+ my ($suppext,$checkabsolute);
+ if ($requrl =~ m{^/adm/wrapper/ext/}) {
+ my $query = $r->args;
+ if ($query) {
+ my $preserved;
+ foreach my $pair (split(/&/,$query)) {
+ my ($name, $value) = split(/=/,$pair);
+ unless (($name eq 'symb') || ($name eq 'usehttp')) {
+ $preserved .= $pair.'&';
+ }
+ if (($env{'request.course.id'}) && ($name eq 'folderpath')) {
+ if ($value =~ /^supplemental/) {
+ $suppext = 1;
+ }
+ }
+ }
+ $preserved =~ s/\&$//;
+ if ($preserved) {
+ $env{'request.external.querystring'} = $preserved;
+ }
+ }
+ if ($env{'request.course.id'}) {
+ $checkabsolute = 1;
+ }
+ } elsif ($env{'request.course.id'} &&
+ (($requrl =~ m{^/adm/$match_domain/$match_username/aboutme$}) ||
+ ($requrl eq "/public/$cdom/$cnum/syllabus") ||
+ ($requrl =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}))) {
+ my $query = $r->args;
+ if ($query) {
+ foreach my $pair (split(/&/,$query)) {
+ my ($name, $value) = split(/=/,$pair);
+ if ($name eq 'folderpath') {
+ if ($value =~ /^supplemental/) {
+ $suppext = 1;
+ }
+ last;
+ }
+ }
+ }
+ if ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}) {
+ $checkabsolute = 1;
+ }
+ }
+ if ($checkabsolute) {
+ my $hostname = $r->hostname();
+ my $lonhost = &Apache::lonnet::host_from_dns($hostname);
+ if ($lonhost) {
+ my $actual = &Apache::lonnet::absolute_url($hostname,1,1);
+ my $exphostname = &Apache::lonnet::hostname($lonhost);
+ my $expected = $Apache::lonnet::protocol{$lonhost}.'://'.$hostname;
+ unless ($actual eq $expected) {
+ $env{'request.use_absolute'} = $expected;
+ }
+ }
+ }
# -------------------------------------------------------- Load POST parameters
&Apache::lonacc::get_posted_cgi($r);
+# ------------------------------------------------------ Check if load balancer
+
+ my $checkexempt;
+ if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) {
+ if ($env{'user.loadbalcheck.time'} + 600 > time) {
+ $checkexempt = 1;
+ }
+ }
+ if ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) {
+ $checkexempt = 1;
+ }
+ unless (($checkexempt) || (($requrl eq '/adm/switchserver') && (!$r->is_initial_req()))) {
+ ($is_balancer,$otherserver) =
+ &Apache::lonnet::check_loadbalancing($env{'user.name'},
+ $env{'user.domain'});
+ if ($is_balancer) {
+ # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
+ my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r);
+ if (($found_server) && ($balancer_cookie =~ /^\Q$env{'user.domain'}\E_\Q$env{'user.name'}\E_/)) {
+ $otherserver = $found_server;
+ }
+ unless ($requrl eq '/adm/switchserver') {
+ $r->set_handlers('PerlResponseHandler'=>
+ [\&Apache::switchserver::handler]);
+ }
+ if ($otherserver ne '') {
+ $env{'form.otherserver'} = $otherserver;
+ }
+ unless (($env{'form.origurl'}) || ($r->uri eq '/adm/roles') ||
+ ($r->uri eq '/adm/switchserver') || ($r->uri eq '/adm/sso')) {
+ $env{'form.origurl'} = $r->uri;
+ }
+ }
+ }
+ if ($requrl=~m{^/+tiny/+$match_domain/+\w+$}) {
+ if ($r->args) {
+ &Apache::loncommon::get_unprocessed_cgi($r->args,['ttoken']);
+ if (defined($env{'form.ttoken'})) {
+ my %info = &Apache::lonnet::tmpget($env{'form.ttoken'});
+ if (($info{'origurl'} ne '') && ($info{'origurl'} eq $requrl)) {
+ my %data;
+ if (($info{'linkprotuser'} ne '') && ($info{'linkprot'}) &&
+ ($info{'linkprotuser'} ne $env{'user.name'}.':'.$env{'user.domain'})) {
+ %data = (
+ origurl => $requrl,
+ linkprot => $info{'linkprot'},
+ linkprotuser => $info{'linkprotuser'},
+ linkprotexit => $info{'linkprotexit'},
+ linkprotpbid => $info{'linkprotpbid'},
+ linkprotpburl => $info{'linkprotpburl'},
+ );
+ } elsif ($info{'ltoken'} ne '') {
+ my %ltoken_info = &Apache::lonnet::tmpget($info{'ltoken'});
+ if (($ltoken_info{'linkprotuser'} ne '') && ($ltoken_info{'linkprot'}) &&
+ ($ltoken_info{'linkprotuser'} ne $env{'user.name'}.':'.$env{'user.domain'})) {
+ %data = (
+ origurl => $requrl,
+ linkprot => $ltoken_info{'linkprot'},
+ linkprotuser => $ltoken_info{'linkprotuser'},
+ linkprotexit => $ltoken_info{'linkprotexit'},
+ linkprotpbid => $ltoken_info{'linkprotpbid'},
+ linkprotpburl => $ltoken_info{'linkprotpburl'},
+ );
+ }
+ }
+ if (keys(%data)) {
+ my $delete = &Apache::lonnet::tmpdel($env{'form.ttoken'});
+ if ($info{'ltoken'} ne '') {
+ my $delete = &Apache::lonnet::tmpdel($info{'ltoken'});
+ }
+ my $token =
+ &Apache::lonnet::tmpput(\%data,$r->dir_config('lonHostID'),'retry');
+ unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) ||
+ ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
+ $r->internal_redirect('/adm/relaunch?rtoken='.$token);
+ $r->set_handlers('PerlHandler'=> undef);
+ return OK;
+ }
+ }
+ }
+ }
+ }
+ if ($env{'user.name'} eq 'public' &&
+ $env{'user.domain'} eq 'public') {
+ $env{'request.firsturl'}=$requrl;
+ return FORBIDDEN;
+ }
+ return OK;
+ } elsif (($env{'request.course.id'}) &&
+ (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) &&
+ ($requrl=~m{^(/daxeopen|)(/uploaded/$cdom/$cnum/(?:docs|supplemental)/(?:default|\d+)/\d+/)([^/]+|)$})) {
+ my ($daxe,$path,$file) = ($1,$2,$3);
+ my $referrer;
+ unless ($daxe) {
+ $referrer = $r->headers_in->{'Referer'};
+ }
+ if (($daxe) || ($referrer =~ m{\Qfile=/daxeopen$path\E})) {
+ return OK;
+ }
+ }
# ---------------------------------------------------------------- Check access
my $now = time;
- if ($requrl !~ m{^/(?:adm|public|prtspool)/}
+ my ($check_symb,$check_access,$check_block,$access,$poss_symb);
+ if ($requrl !~ m{^/(?:adm|public|(?:prt|zip)spool)/}
|| $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) {
- my $access=&Apache::lonnet::allowed('bre',$requrl);
+ $check_access = 1;
+ }
+ if ((!$check_access) && ($env{'request.course.id'})) {
+ if (($requrl eq '/adm/viewclasslist') ||
+ ($requrl =~ m{^(/adm/wrapper|)\Q/uploaded/$cdom/$cnum/docs/\E}) ||
+ ($requrl =~ m{^/adm/.*/aboutme$}) ||
+ ($requrl=~m{^/adm/coursedocs/showdoc/}) ||
+ ($requrl=~m{^(/adm/wrapper|)/adm/$cdom/$cnum/\d+/ext\.tool$})) {
+ $check_block = 1;
+ }
+ }
+ if (($env{'request.course.id'}) && (!$suppext)) {
+ $requrl=~/\.(\w+)$/;
+ if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
+ ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) ||
+ ($requrl=~/^\/adm\/wrapper\//) ||
+ ($requrl=~m|^/adm/coursedocs/showdoc/|) ||
+ ($requrl=~m|\.problem/smpedit$|) ||
+ ($requrl=~/^\/public\/.*\/syllabus$/) ||
+ ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) ||
+ ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/) ||
+ ($requrl=~m{^/adm/$cdom/$cnum/\d+/ext\.tool$})) {
+ $check_symb = 1;
+ }
+ }
+ if (($check_access) || ($check_block)) {
+ if ($check_symb) {
+ if ($env{'form.symb'}) {
+ $poss_symb=&Apache::lonnet::symbclean($env{'form.symb'});
+ } elsif (($env{'request.course.id'}) && ($r->args ne '')) {
+ my $query = $r->args;
+ foreach my $pair (split(/&/,$query)) {
+ my ($name, $value) = split(/=/,$pair);
+ $name = &unescape($name);
+ $value =~ tr/+/ /;
+ $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
+ if ($name eq 'symb') {
+ $poss_symb = &Apache::lonnet::symbclean($value);
+ last;
+ }
+ }
+ }
+ if ($poss_symb) {
+ my ($possmap,$resid,$url)=&Apache::lonnet::decode_symb($poss_symb);
+ $url = &Apache::lonnet::clutter($url);
+ my $toplevelmap = $env{'course.'.$env{'request.course.id'}.'.url'};
+ unless (($url eq $requrl) && (($possmap eq $toplevelmap) ||
+ (&Apache::lonnet::is_on_map($possmap)))) {
+ undef($poss_symb);
+ }
+ if ($poss_symb) {
+ if ((!$env{'request.role.adv'}) && ($env{'acc.randomout'}) &&
+ ($env{'acc.randomout'}=~/\&\Q$poss_symb\E\&/)) {
+ undef($poss_symb);
+ } elsif ((!$env{'request.role.adv'}) && ($env{'acc.deeplinkout'}) &&
+ ($env{'acc.deeplinkout'}=~/\&\Q$poss_symb\E\&/)) {
+ undef($poss_symb);
+ }
+ }
+ }
+ if ($poss_symb) {
+ $access=&Apache::lonnet::allowed('bre',$requrl,$poss_symb);
+ } else {
+ $access=&Apache::lonnet::allowed('bre',$requrl,'','','','',1);
+ }
+ } else {
+ my $nodeeplinkcheck;
+ if ($check_access) {
+ if ($requrl =~ m{^/daxeopen/priv/}) {
+ $nodeeplinkcheck = 1;
+ } elsif ($requrl =~ /\.(sequence|page)$/) {
+ unless ($env{'form.navmap'}) {
+ if ($r->args ne '') {
+ &Apache::loncommon::get_unprocessed_cgi($r->args,['navmap']);
+ unless ($env{'form.navmap'}) {
+ $nodeeplinkcheck = 1;
+ }
+ }
+ }
+ }
+ }
+ my $clientip = &Apache::lonnet::get_requestor_ip($r);
+ $access=&Apache::lonnet::allowed('bre',$requrl,'','',$clientip,'','',$nodeeplinkcheck);
+ if (($requrl =~ m{^/daxeopen/priv/}) && ($access eq '')) {
+ $env{'request.editurl'}=$requrl;
+ }
+ }
+ }
+ if ($check_block) {
+ if ($access eq 'B') {
+ if ($poss_symb) {
+ if (&Apache::lonnet::symbverify($poss_symb,$requrl)) {
+ $env{'request.symb'} = $poss_symb;
+ }
+ }
+ &Apache::blockedaccess::setup_handler($r);
+ return OK;
+ }
+ } elsif ($check_access) {
+ if ($handle eq '') {
+ unless ($access eq 'F') {
+ if ($requrl =~ m{^/res/$match_domain/$match_username/}) {
+ $r->log_reason("Cookie not valid", $r->filename);
+ }
+ }
+ }
if ($access eq '1') {
$env{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
return HTTP_NOT_ACCEPTABLE;
@@ -408,12 +1023,43 @@ sub handler {
return OK;
}
if ($access eq 'B') {
+ if ($poss_symb) {
+ if (&Apache::lonnet::symbverify($poss_symb,$requrl)) {
+ $env{'request.symb'} = $poss_symb;
+ }
+ }
&Apache::blockedaccess::setup_handler($r);
return OK;
}
+ if ($access eq 'D') {
+ &Apache::lonprotected::setup_handler($r);
+ return OK;
+ }
if (($access ne '2') && ($access ne 'F')) {
- $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
- return HTTP_NOT_ACCEPTABLE;
+ if ($requrl =~ m{^/res/}) {
+ $access = &Apache::lonnet::allowed('bro',$requrl);
+ if ($access ne 'F') {
+ if ($requrl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
+ $access = &Apache::lonnet::allowed('bre','/res/lib/templates/simpleproblem.problem');
+ if ($access ne 'F') {
+ $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
+ return HTTP_NOT_ACCEPTABLE;
+ }
+ } else {
+ $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
+ return HTTP_NOT_ACCEPTABLE;
+ }
+ }
+ } elsif (($handle =~ /^publicuser_\d+$/) && (&Apache::lonnet::is_portfolio_url($requrl))) {
+ my $clientip = &Apache::lonnet::get_requestor_ip($r);
+ if (&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip) ne 'F') {
+ $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
+ return HTTP_NOT_ACCEPTABLE;
+ }
+ } else {
+ $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
+ return HTTP_NOT_ACCEPTABLE;
+ }
}
}
if ($requrl =~ m|^/prtspool/|) {
@@ -436,6 +1082,7 @@ sub handler {
$env{'user.domain'} eq 'public' &&
$requrl !~ m{^/+(res|public|uploaded)/} &&
$requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x &&
+ $requrl !~ m{^/adm/blockingstatus/.*$} &&
$requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) {
$env{'request.querystring'}=$r->args;
$env{'request.firsturl'}=$requrl;
@@ -444,30 +1091,51 @@ sub handler {
# ------------------------------------------------------------- This is allowed
if ($env{'request.course.id'}) {
&Apache::lonnet::countacc($requrl);
- $requrl=~/\.(\w+)$/;
- if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
- ($requrl=~/^\/adm\/.*\/(aboutme|navmaps|smppg|bulletinboard)(\?|$ )/x) ||
- ($requrl=~/^\/adm\/wrapper\//) ||
- ($requrl=~m|^/adm/coursedocs/showdoc/|) ||
- ($requrl=~m|\.problem/smpedit$|) ||
- ($requrl=~/^\/public\/.*\/syllabus$/)) {
+ my $query=$r->args;
+ if ($check_symb) {
# ------------------------------------- This is serious stuff, get symb and log
- my $query=$r->args;
my $symb;
if ($query) {
- &Apache::loncommon::get_unprocessed_cgi($query,['symb']);
+ &Apache::loncommon::get_unprocessed_cgi($query,['symb','folderpath']);
}
if ($env{'form.symb'}) {
$symb=&Apache::lonnet::symbclean($env{'form.symb'});
- if ($requrl =~ m|^/adm/wrapper/|
- || $requrl =~ m|^/adm/coursedocs/showdoc/|) {
- my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
- &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
- 'last_known' =>[$murl,$mid]);
+ if (($requrl eq '/adm/navmaps') ||
+ ($requrl =~ m{^/adm/wrapper/}) ||
+ ($requrl =~ m{^/adm/coursedocs/showdoc/})) {
+ unless (&Apache::lonnet::symbverify($symb,$requrl)) {
+ if (&Apache::lonnet::is_on_map($requrl)) {
+ $symb = &Apache::lonnet::symbread($requrl);
+ unless (&Apache::lonnet::symbverify($symb,$requrl)) {
+ undef($symb);
+ }
+ }
+ }
+ if ($symb) {
+ if ($requrl eq '/adm/navmaps') {
+ my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
+ &Apache::lonnet::symblist($map,$murl => [$murl,$mid]);
+ } elsif (($requrl =~ m{^/adm/wrapper/}) ||
+ ($requrl =~ m{^/adm/coursedocs/showdoc/})) {
+ my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
+ if ($map =~ /\.page$/) {
+ my $mapsymb = &Apache::lonnet::symbread($map);
+ ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb);
+ }
+ &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
+ 'last_known' =>[$murl,$mid]);
+ }
+ }
} elsif ((&Apache::lonnet::symbverify($symb,$requrl)) ||
(($requrl=~m|(.*)/smpedit$|) &&
- &Apache::lonnet::symbverify($symb,$1))) {
+ &Apache::lonnet::symbverify($symb,$1)) ||
+ (($requrl=~m|(.*/aboutme)/portfolio$|) &&
+ &Apache::lonnet::symbverify($symb,$1))) {
my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
+ if (($map =~ /\.page$/) && ($requrl !~ /\.page$/)) {
+ my $mapsymb = &Apache::lonnet::symbread($map);
+ ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb);
+ }
&Apache::lonnet::symblist($map,$murl => [$murl,$mid],
'last_known' =>[$murl,$mid]);
} else {
@@ -478,29 +1146,112 @@ sub handler {
return HTTP_NOT_ACCEPTABLE;
}
} else {
+ if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) {
+ $requrl = $1;
+ }
$symb=&Apache::lonnet::symbread($requrl);
- if (&Apache::lonnet::is_on_map($requrl) && $symb &&
- !&Apache::lonnet::symbverify($symb,$requrl)) {
- $r->log_reason('Invalid symb for '.$requrl.': '.$symb);
- $env{'user.error.msg'}=
- "$requrl:bre:1:1:Invalid Access";
- return HTTP_NOT_ACCEPTABLE;
- }
+ if (&Apache::lonnet::is_on_map($requrl) && $symb) {
+ my ($encstate,$invalidsymb);
+ unless (&Apache::lonnet::symbverify($symb,$requrl,\$encstate)) {
+ $invalidsymb = 1;
+ #
+ # If $env{'request.enc'} inconsistent with encryption expected for $symb
+ # retrieved by lonnet::symbread(), call again to check for an instance of
+ # $requrl in the course for which expected encryption matches request.enc.
+ # If symb for different instance passes lonnet::symbverify(), use that as
+ # the symb for $requrl and call &Apache::lonnet::allowed() for that symb.
+ # Report invalid symb if there is no other symb. Redirect to /adm/ambiguous
+ # if multiple possible symbs consistent with request.enc available for $requrl.
+ #
+ if (($env{'request.enc'} && !$encstate) || (!$env{'request.enc'} && $encstate)) {
+ my %possibles;
+ my $nocache = 1;
+ my $oldsymb = $symb;
+ $symb = &Apache::lonnet::symbread($requrl,'','','',\%possibles,$nocache);
+ if (($symb) && ($symb ne $oldsymb)) {
+ if (&Apache::lonnet::symbverify($symb,$requrl)) {
+ my $access=&Apache::lonnet::allowed('bre',$requrl,$symb);
+ if ($access eq 'B') {
+ $env{'request.symb'} = $symb;
+ &Apache::blockedaccess::setup_handler($r);
+ return OK;
+ } elsif (($access eq '2') || ($access eq 'F')) {
+ $invalidsymb = '';
+ }
+ }
+ } elsif (keys(%possibles) > 1) {
+ $r->internal_redirect('/adm/ambiguous');
+ return OK;
+ }
+ }
+ if ($invalidsymb) {
+ if ($requrl eq '/adm/navmaps') {
+ undef($symb);
+ } else {
+ $r->log_reason('Invalid symb for '.$requrl.': '.$symb);
+ $env{'user.error.msg'}=
+ "$requrl:bre:1:1:Invalid Access";
+ return HTTP_NOT_ACCEPTABLE;
+ }
+ }
+ }
+ }
if ($symb) {
my ($map,$mid,$murl)=
&Apache::lonnet::decode_symb($symb);
- &Apache::lonnet::symblist($map,$murl =>[$murl,$mid],
- 'last_known' =>[$murl,$mid]);
+ if ($requrl eq '/adm/navmaps') {
+ &Apache::lonnet::symblist($map,$murl =>[$murl,$mid]);
+ } else {
+ if (($map =~ /\.page$/) && ($requrl !~ /\.page$/)) {
+ my $mapsymb = &Apache::lonnet::symbread($map);
+ ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb);
+ }
+ &Apache::lonnet::symblist($map,$murl =>[$murl,$mid],
+ 'last_known' =>[$murl,$mid]);
+ }
}
}
$env{'request.symb'}=$symb;
+ if (($env{'request.symbread.cached.'}) && ($env{'request.symbread.cached.'} ne $symb)) {
+ $env{'request.symbread.cached.'} = $symb;
+ }
&Apache::lonnet::courseacclog($symb);
} else {
# ------------------------------------------------------- This is other content
&Apache::lonnet::courseacclog($requrl);
}
+ if ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/.+\.html?$}) {
+ if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
+ if ($query) {
+ &Apache::loncommon::get_unprocessed_cgi($query,['forceedit']);
+ if ($env{'form.forceedit'}) {
+ $env{'request.state'} = 'edit';
+ }
+ }
+ }
+ } elsif ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/portfolio/syllabus/.+\.html?$}) {
+ if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
+ if ($query) {
+ &Apache::loncommon::get_unprocessed_cgi($query,['forceedit','editmode']);
+ if (($env{'form.forceedit'}) || ($env{'form.editmode'})) {
+ $env{'request.state'} = 'edit';
+ }
+ }
+ }
+ }
}
return OK;
+ } else {
+ my $defdom=$r->dir_config('lonDefDomain');
+ ($is_balancer,$otherserver) =
+ &Apache::lonnet::check_loadbalancing(undef,$defdom);
+ if ($is_balancer) {
+ $r->set_handlers('PerlResponseHandler'=>
+ [\&Apache::switchserver::handler]);
+ if ($otherserver ne '') {
+ $env{'form.otherserver'} = $otherserver;
+ }
+ }
}
# -------------------------------------------- See if this is a public resource
if ($requrl=~m|^/+adm/+help/+|) {
@@ -508,7 +1259,8 @@ sub handler {
}
# ------------------------------------ See if this is a viewable portfolio file
if (&Apache::lonnet::is_portfolio_url($requrl)) {
- my $access=&Apache::lonnet::allowed('bre',$requrl);
+ my $clientip = &Apache::lonnet::get_requestor_ip($r);
+ my $access=&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip);
if ($access eq 'A') {
&Apache::restrictedaccess::setup_handler($r);
return OK;
500 Internal Server Error
Internal Server Error
The server encountered an internal error or
misconfiguration and was unable to complete
your request.
Please contact the server administrator at
root@localhost to inform them of the time this error occurred,
and the actions you performed just before this error.
More information about this error may be available
in the server error log.