--- loncom/auth/lonacc.pm 2006/07/14 21:38:26 1.86
+++ loncom/auth/lonacc.pm 2021/02/10 11:37:49 1.159.2.8.2.11
@@ -1,7 +1,7 @@
# The LearningOnline Network
# Cookie Based Access Handler
#
-# $Id: lonacc.pm,v 1.86 2006/07/14 21:38:26 albertel Exp $
+# $Id: lonacc.pm,v 1.159.2.8.2.11 2021/02/10 11:37:49 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -27,6 +27,71 @@
#
###
+=head1 NAME
+
+Apache::lonacc - Cookie Based Access Handler
+
+=head1 SYNOPSIS
+
+Invoked (for various locations) by /etc/httpd/conf/srm.conf:
+
+ PerlAccessHandler Apache::lonacc
+
+=head1 INTRODUCTION
+
+This module enables cookie based authentication and is used
+to control access for many different LON-CAPA URIs.
+
+Whenever the client sends the cookie back to the server,
+this cookie is handled by either lonacc.pm or loncacc.pm
+(see srm.conf for what is invoked when). If
+the cookie is missing or invalid, the user is re-challenged
+for login information.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 HANDLER SUBROUTINE
+
+This routine is called by Apache and mod_perl.
+
+=over 4
+
+=item *
+
+transfer profile into environment
+
+=item *
+
+load POST parameters
+
+=item *
+
+check access
+
+=item *
+
+if allowed, get symb, log, generate course statistics if applicable
+
+=item *
+
+otherwise return error
+
+=item *
+
+see if public resource
+
+=item *
+
+store attempted access
+
+=back
+
+=head1 NOTABLE SUBROUTINES
+
+=cut
+
+
package Apache::lonacc;
use strict;
@@ -36,9 +101,9 @@ use Apache::lonnet;
use Apache::loncommon();
use Apache::lonlocal;
use Apache::restrictedaccess();
-use CGI::Cookie();
+use Apache::blockedaccess();
use Fcntl qw(:flock);
-use LONCAPA;
+use LONCAPA qw(:DEFAULT :match);
sub cleanup {
my ($r)=@_;
@@ -56,13 +121,14 @@ sub goodbye {
###############################################
sub get_posted_cgi {
- my ($r) = @_;
+ my ($r,$fields) = @_;
my $buffer;
if ($r->header_in('Content-length')) {
$r->read($buffer,$r->header_in('Content-length'),0);
}
- unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) {
+ my $content_type = $r->header_in('Content-type');
+ if ($content_type !~ m{^multipart/form-data}) {
my @pairs=split(/&/,$buffer);
my $pair;
foreach $pair (@pairs) {
@@ -71,10 +137,13 @@ sub get_posted_cgi {
$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
$name =~ tr/+/ /;
$name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
+ if (ref($fields) eq 'ARRAY') {
+ next if (!grep(/^\Q$name\E$/,@{$fields}));
+ }
&Apache::loncommon::add_to_env("form.$name",$value);
}
} else {
- my $contentsep=$1;
+ my ($contentsep) = ($content_type =~ /boundary=\"?([^\";,]+)\"?/);
my @lines = split (/\n/,$buffer);
my $name='';
my $value='';
@@ -82,16 +151,37 @@ sub get_posted_cgi {
my $fmime='';
my $i;
for ($i=0;$i<=$#lines;$i++) {
- if ($lines[$i]=~/^$contentsep/) {
+ if ($lines[$i]=~/^--\Q$contentsep\E/) {
if ($name) {
- chomp($value);
- if ($fname) {
- $env{"form.$name.filename"}=$fname;
- $env{"form.$name.mimetype"}=$fmime;
- } else {
- $value=~s/\s+$//s;
- }
- &Apache::loncommon::add_to_env("form.$name",$value);
+ chomp($value);
+ if (($r->uri eq '/adm/portfolio') &&
+ ($name eq 'uploaddoc')) {
+ if (length($value) == 1) {
+ $value=~s/[\r\n]$//;
+ }
+ } elsif ($fname =~ /\.(xls|doc|ppt)(x|m)$/i) {
+ $value=~s/[\r\n]$//;
+ }
+ if (ref($fields) eq 'ARRAY') {
+ next if (!grep(/^\Q$name\E$/,@{$fields}));
+ }
+ if ($fname) {
+ if ($env{'form.symb'} ne '') {
+ my $size = (length($value))/(1024.0 * 1024.0);
+ if (&upload_size_allowed($name,$size,$fname) eq 'ok') {
+ $env{"form.$name.filename"}=$fname;
+ $env{"form.$name.mimetype"}=$fmime;
+ &Apache::loncommon::add_to_env("form.$name",$value);
+ }
+ } else {
+ $env{"form.$name.filename"}=$fname;
+ $env{"form.$name.mimetype"}=$fmime;
+ &Apache::loncommon::add_to_env("form.$name",$value);
+ }
+ } else {
+ $value=~s/\s+$//s;
+ &Apache::loncommon::add_to_env("form.$name",$value);
+ }
}
if ($i<$#lines) {
$i++;
@@ -137,400 +227,726 @@ sub get_posted_cgi {
$r->headers_in->unset('Content-length');
}
-sub portfolio_access {
- my ($udom,$unum,$file_name,$group) = @_;
- my $current_perms = &Apache::lonnet::get_portfile_permissions($udom,$unum);
- my %access_controls = &Apache::lonnet::get_access_controls(
- $current_perms,$group,$file_name);
- my ($public,$guest,@domains,@users,@courses,@groups);
- my $now = time;
- my $access_hash = $access_controls{$file_name};
- if (ref($access_hash) eq 'HASH') {
- foreach my $key (keys(%{$access_hash})) {
- my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
- if ($start > $now) {
- next;
- }
- if ($end && $end<$now) {
- next;
- }
- if ($scope eq 'public') {
- $public = $key;
- last;
- } elsif ($scope eq 'guest') {
- $guest = $key;
- } elsif ($scope eq 'domains') {
- push(@domains,$key);
- } elsif ($scope eq 'users') {
- push(@users,$key);
- } elsif ($scope eq 'course') {
- push(@courses,$key);
- } elsif ($scope eq 'group') {
- push(@groups,$key);
- }
- }
- if ($public) {
- return 'ok';
- }
- if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
- if ($guest) {
- return $guest;
- }
- } else {
- if (@domains > 0) {
- foreach my $domkey (@domains) {
- my %content = &Apache::lonnet::parse_access_controls($$access_hash{$domkey});
- if (ref($content{'dom'}) eq 'ARRAY') {
- if (grep(/^\Q$env{'user.domain'}\E$/,@{$content{'dom'}})) {
- return 'ok';
- }
- }
- }
- }
- if (@users > 0) {
- foreach my $userkey (@users) {
- my %content = &Apache::lonnet::parse_access_controls($$access_hash{$userkey});
- if (exists($content{'users'}{$env{'user.name'}.':'.$env{'user.domain'}})) {
- return 'ok';
- }
- }
- }
- my %roleshash;
- my @courses_and_groups = @courses;
- push(@courses_and_groups,@groups);
- if (@courses_and_groups > 0) {
- my (%allgroups,%allroles);
- my ($start,$end,$role,$sec,$group);
- foreach my $envkey (%env) {
- if ($envkey =~ m-^user\.role\.(gr|cc|in|ta|ep|st)\./([^/]+)/([^/]+)/?([^/]*)$-) {
- my $cid = $2.'_'.$3;
- if ($1 eq 'gr') {
- $group = $4;
- $allgroups{$cid}{$group} = $env{$envkey};
- } else {
- if ($4 eq '') {
- $sec = 'none';
- } else {
- $sec = $4;
- }
- $allroles{$cid}{$1}{$sec} = $env{$envkey};
- }
- } elsif ($envkey =~ m-^user\.role\./cr/(\w+/\w+/\w*)./([^/]+)/([^/]+)/?([^/]*)$-) {
- my $cid = $2.'_'.$3;
- if ($4 eq '') {
- $sec = 'none';
- } else {
- $sec = $4;
- }
- $allroles{$cid}{$1}{$sec} = $env{$envkey};
- }
- }
- if (keys(%allroles) == 0) {
- return;
- }
- foreach my $key (@courses_and_groups) {
- my %content = &Apache::lonnet::parse_access_controls($$access_hash{$key});
- my $cnum = $content{'number'};
- my $cdom = $content{'domain'};
- my $cid = $cdom.'_'.$cnum;
- if (!exists($allroles{$cid})) {
- next;
- }
- foreach my $role_id (keys(%{$content{'roles'}})) {
- my @sections = @{$content{'roles'}{$role_id}{'section'}};
- my @groups = @{$content{'roles'}{$role_id}{'group'}};
- my @status = @{$content{'roles'}{$role_id}{'access'}};
- my @roles = @{$content{'roles'}{$role_id}{'role'}};
- foreach my $role (keys(%{$allroles{$cid}})) {
- if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
- foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
- if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
- if (grep/^all$/,@sections) {
- return 'ok';
- } else {
- if (grep/^$sec$/,@sections) {
- return 'ok';
- }
- }
- }
- }
- if (keys(%{$allgroups{$cid}}) == 0) {
- if (grep/^none$/,@groups) {
- return 'ok';
- }
- } else {
- if (grep/^all$/,@groups) {
- return 'ok';
- }
- foreach my $group (keys(%{$allgroups{$cid}})) {
- if (grep/^$group$/,@groups) {
- return 'ok';
- }
- }
- }
- }
- }
- }
- }
- }
- if ($guest) {
- return $guest;
- }
+=pod
+
+=over
+
+=item upload_size_allowed()
+
+ Perform size checks for file uploads to essayresponse items in course context.
+
+ Add form.HWFILESIZE.$part_$id to %env with file size (MB)
+ If file exceeds maximum allowed size, add form.HWFILETOOBIG.$part_$id to %env.
+
+=cut
+
+sub upload_size_allowed {
+ my ($name,$size,$fname) = @_;
+ if ($name =~ /^HWFILE(\w+)$/) {
+ my $ident = $1;
+ my $item = 'HWFILESIZE'.$ident;
+ my $savesize = sprintf("%.6f",$size);
+ &Apache::loncommon::add_to_env("form.$item",$savesize);
+ my $maxsize= &Apache::lonnet::EXT("resource.$ident.maxfilesize");
+ if (!$maxsize) {
+ $maxsize = 10.0; # FIXME This should become a domain configuration.
+ }
+ if ($size > $maxsize) {
+ my $warn = 'HWFILETOOBIG'.$ident;
+ &Apache::loncommon::add_to_env("form.$warn",$fname);
+ return;
}
}
- return;
+ return 'ok';
}
-sub passphrase_access_checker {
- my ($r,$guestkey,$requrl) = @_;
- my ($num,$scope,$end,$start) = ($guestkey =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
- if ($scope eq 'guest') {
- if (exists($env{'user.passphrase_access_'.$requrl})) {
- if (($env{'user.passphrase_access_'.$requrl} == 0) ||
- ($env{'user.passphrase_access_'.$requrl} > time)) {
- $env{'request.publicaccess'} = 1;
- return 'ok';
+=pod
+
+=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. 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.
+
+=cut
+
+sub sso_login {
+ my ($r,$handle,$username) = @_;
+
+ if (($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) = ($r->user =~ m/^($match_username)$/);
+ if ($user eq '') {
+ return undef;
+ }
+
+ my $query = $r->args;
+ my %form;
+ if ($query) {
+ my @items = ('role','symb','iptoken');
+ &Apache::loncommon::get_unprocessed_cgi($query,\@items);
+ foreach my $item (@items) {
+ if (defined($env{'form.'.$item})) {
+ $form{$item} = $env{'form.'.$item};
}
}
}
- $r->set_handlers('PerlHandler'=> \&Apache::restrictedaccess::handler);
- $r->content_type('perl-script');
- return;
-}
-sub course_group_datechecker {
- my ($dates,$now,$status) = @_;
- my ($start,$end) = split(/\./,$dates);
- if (!$start && !$end) {
- return 'ok';
- }
- if (grep/^active$/,@{$status}) {
- if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
- return 'ok';
+ my %sessiondata;
+ if ($form{'iptoken'}) {
+ %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
+ my $delete = &Apache::lonnet::tmpdel($form{'iptoken'});
+ unless ($sessiondata{'sessionserver'}) {
+ delete($form{'iptoken'});
}
}
- if (grep/^previous$/,@{$status}) {
- if ($end > $now ) {
- return 'ok';
+
+ my $domain = $r->dir_config('lonSSOUserDomain');
+ if ($domain eq '') {
+ $domain = $r->dir_config('lonDefDomain');
+ }
+ my $home=&Apache::lonnet::homeserver($user,$domain);
+ if ($home !~ /(con_lost|no_host|no_such_host)/) {
+ &Apache::lonnet::logthis(" SSO authorized user $user ");
+ my ($is_balancer,$otherserver,$hosthere);
+ if ($form{'iptoken'}) {
+ if (($sessiondata{'domain'} eq $domain) &&
+ ($sessiondata{'username'} eq $user)) {
+ $hosthere = 1;
+ }
}
- }
- if (grep/^future$/,@{$status}) {
- if ($start > $now) {
- return 'ok';
+ unless ($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) {
+ $otherserver = &Apache::lonnet::spareserver($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 ($form{'symb'}) {
+ unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
+ $env{'form.origurl'} = $r->uri;
+ }
+ }
+ $env{'request.sso.login'} = 1;
+ if (defined($r->dir_config("lonSSOReloginServer"))) {
+ $env{'request.sso.reloginserver'} =
+ $r->dir_config('lonSSOReloginServer');
+ }
+ my $redirecturl = '/adm/switchserver';
+ if ($otherserver ne '') {
+ $redirecturl .= '?otherserver='.$otherserver;
+ }
+ $r->internal_redirect($redirecturl);
+ $r->set_handlers('PerlHandler'=> undef);
+ } else {
+ # need to login them in, so generate the need data that
+ # migrate expects to do login
+ my $ip = &Apache::lonnet::get_requestor_ip($r);
+ my %info=('ip' => $ip,
+ 'domain' => $domain,
+ 'username' => $user,
+ 'server' => $r->dir_config('lonHostID'),
+ 'sso.login' => 1
+ );
+ foreach my $item ('role','symb','iptoken') {
+ if (exists($form{$item})) {
+ $info{$item} = $form{$item};
+ }
+ }
+ unless ($info{'symb'}) {
+ unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
+ $info{'origurl'} = $r->uri;
+ }
+ }
+ if ($r->dir_config("ssodirecturl") == 1) {
+ $info{'origurl'} = $r->uri;
+ }
+ if (defined($r->dir_config("lonSSOReloginServer"))) {
+ $info{'sso.reloginserver'} =
+ $r->dir_config('lonSSOReloginServer');
+ }
+ if (($is_balancer) && ($hosthere)) {
+ $info{'noloadbalance'} = $hosthere;
+ }
+ my $token =
+ &Apache::lonnet::tmpput(\%info,
+ $r->dir_config('lonHostID'));
+ $env{'form.token'} = $token;
+ $r->internal_redirect('/adm/migrateuser');
+ $r->set_handlers('PerlHandler'=> undef);
+ }
+ return OK;
+ } else {
+ &Apache::lonnet::logthis(" SSO authorized unknown user $user ");
+ my @cancreate;
+ my %domconfig =
+ &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
+ if (ref($domconfig{'usercreation'}) eq 'HASH') {
+ if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
+ if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
+ @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
+ } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
+ ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
+ @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
+ }
+ }
+ }
+ if ((grep(/^sso$/,@cancreate)) || (defined($r->dir_config('lonSSOUserUnknownRedirect')))) {
+ $r->subprocess_env->set('SSOUserUnknown' => $user);
+ $r->subprocess_env->set('SSOUserDomain' => $domain);
+ if (grep(/^sso$/,@cancreate)) {
+ $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;
}
}
- return;
+ return undef;
}
sub handler {
my $r = shift;
my $requrl=$r->uri;
- my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
- my $lonid=$cookies{'lonID'};
- my $cookie;
- my $lonidsdir=$r->dir_config('lonIDsDir');
- my $handle;
- if ($lonid) {
- $handle=$lonid->value;
- $handle=~s/\W//g;
- }
-
- my ($sso_login);
- if ($r->user
- && (!$lonid || !-e "$lonidsdir/$handle.id" || $handle eq '') ) {
- $sso_login = 1;
- my $domain = $r->dir_config('lonDefDomain');
- my $home=&Apache::lonnet::homeserver($r->user,$domain);
- if ($home !~ /(con_lost|no_such_host)/) {
- $handle=&Apache::lonauth::success($r,$r->user,$domain,
- $home,'noredirect');
- $r->header_out('Set-cookie',"lonID=$handle; path=/");
- }
+ if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
+ return OK;
}
- if ($sso_login) {
- &Apache::lonnet::appenv('request.sso.login' => 1);
+ if (&Apache::lonnet::is_domainimage($requrl)) {
+ return OK;
}
- if ($r->dir_config("lonBalancer") eq 'yes') {
- $r->set_handlers('PerlResponseHandler'=>
- [\&Apache::switchserver::handler]);
+ my %user;
+ my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
+
+ unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) {
+ my $result = &sso_login($r,$handle,$user{'name'});
+ if (defined($result)) {
+ return $result;
+ }
}
- if ($handle ne '') {
- if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
+ my ($is_balancer,$otherserver);
-# ------------------------------------------------------ Initialize Environment
+ if ($handle eq '') {
+ unless ((($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) ||
+ ($requrl =~ m{^/public/$match_domain/$match_courseid/syllabus}) ||
+ ($requrl =~ m{^/adm/help/}) ||
+ ($requrl =~ m{^/res/$match_domain/$match_username/})) {
+ $r->log_reason("Cookie not valid", $r->filename);
+ }
+ } elsif ($handle ne '') {
- &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
+# ------------------------------------------------------ Initialize Environment
+ my $lonidsdir=$r->dir_config('lonIDsDir');
+ &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
# --------------------------------------------------------- Initialize Language
- &Apache::lonlocal::get_language_handle($r);
+ &Apache::lonlocal::get_language_handle($r);
+ }
+
+# -------------------------------------------------- Should be a valid user now
+ if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') {
# -------------------------------------------------------------- Resource State
- if ($requrl=~/^\/+(res|uploaded)\//) {
- $env{'request.state'} = "published";
- } else {
- $env{'request.state'} = 'unknown';
+ my ($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 {
+ $env{'request.state'} = 'unknown';
+ }
+ $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/$match_username/aboutme$}) ||
+ ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}))) {
+ 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);
+ my $exphostname = &Apache::lonnet::hostname($lonhost);
+ my $expected = $Apache::lonnet::protocol{$lonhost}.'://'.$hostname;
+ unless ($actual eq $expected) {
+ $env{'request.use_absolute'} = $expected;
+ }
}
- $env{'request.filename'} = $r->filename;
- $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl);
+ }
# -------------------------------------------------------- Load POST parameters
- &Apache::lonacc::get_posted_cgi($r);
+ &Apache::lonacc::get_posted_cgi($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 ($env{'user.name'} eq 'public' &&
+ $env{'user.domain'} eq 'public') {
+ $env{'request.firsturl'}=$requrl;
+ return FORBIDDEN;
+ } else {
+ return OK;
+ }
+ }
# ---------------------------------------------------------------- Check access
- my $now = time;
- if ($requrl =~ m|/+uploaded/([^/]+)/([^/]+)/portfolio(/.+)$|) {
- my $result = &portfolio_access($1,$2,$3);
- if ($result eq 'ok') {
- return OK;
- } elsif ($result =~ /^[^:]+:guest_/) {
- &passphrase_access_checker($r,$result,$requrl);
- return OK;
- }
- } elsif ($requrl =~ m|/+uploaded/([^/]+)/([^/]+)/groups/([^/]+)/portfolio/(.+)$|) {
- my $result = &portfolio_access($1,$2,$3.'/'.$4,$3);
- if ($result eq 'ok') {
- return OK;
- } elsif ($result =~ /^[^:]+:guest_/) {
- &passphrase_access_checker($r,$result,$requrl);
- return OK;
- }
- }
- if ($requrl!~/^\/adm|public|prtspool\//) {
- my $access=&Apache::lonnet::allowed('bre',$requrl);
- if ($access eq '1') {
- $env{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
- return HTTP_NOT_ACCEPTABLE;
- }
- if (($access ne '2') && ($access ne 'F')) {
- $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
- return HTTP_NOT_ACCEPTABLE;
- }
- }
- if ($requrl =~ m|^/prtspool/|) {
- my $start='/prtspool/'.$env{'user.name'}.'_'.
- $env{'user.domain'};
- if ($requrl !~ /^\Q$start\E/) {
+ my $now = time;
+ my ($check_symb,$check_access,$check_block,$access,$poss_symb);
+ if ($requrl !~ m{^/(?:adm|public|(?:prt|zip)spool)/}
+ || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) {
+ $check_access = 1;
+ }
+ if ((!$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($poss_symb);
+ }
+ }
+ }
+ if ($poss_symb) {
+ $access=&Apache::lonnet::allowed('bre',$requrl,$poss_symb);
+ } else {
+ $access=&Apache::lonnet::allowed('bre',$requrl,'','','','',1);
+ }
+ } else {
+ $access=&Apache::lonnet::allowed('bre',$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;
+ }
+ if ($access eq 'A') {
+ &Apache::restrictedaccess::setup_handler($r);
+ 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 (($access ne '2') && ($access ne 'F')) {
+ 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/|) {
+ my $start='/prtspool/'.$env{'user.name'}.'_'.
+ $env{'user.domain'};
+ if ($requrl !~ /^\Q$start\E/) {
+ $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
+ return HTTP_NOT_ACCEPTABLE;
}
- if ($env{'user.name'} eq 'public' &&
- $env{'user.domain'} eq 'public' &&
- $requrl !~ m{^/+(res|public)/} &&
- $requrl !~ m{^/+adm/(help|logout|randomlabel\.png)}) {
- $env{'request.querystring'}=$r->args;
- $env{'request.firsturl'}=$requrl;
- return FORBIDDEN;
+ }
+ if ($requrl =~ m|^/zipspool/|) {
+ my $start='/zipspool/zipout/'.$env{'user.name'}.":".
+ $env{'user.domain'};
+ if ($requrl !~ /^\Q$start\E/) {
+ $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
+ return HTTP_NOT_ACCEPTABLE;
}
+ }
+ if ($env{'user.name'} eq 'public' &&
+ $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;
+ return FORBIDDEN;
+ }
# ------------------------------------------------------------- This is allowed
- if ($env{'request.course.id'}) {
+ if ($env{'request.course.id'}) {
&Apache::lonnet::countacc($requrl);
- $requrl=~/\.(\w+)$/;
- if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
- ($requrl=~/^\/adm\/.*\/(aboutme|navmaps|smppg|bulletinboard)(\?|$)/) ||
- ($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($query,['symb']);
- }
- if ($env{'form.symb'}) {
+ my $symb;
+ if ($query) {
+ &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,$mid]);
- } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) ||
+ if (($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,$1))) {
- my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
- &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
- 'last_known' =>[$murl,$mid]);
+ &Apache::lonnet::symbverify($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 {
$r->log_reason('Invalid symb for '.$requrl.': '.
- $symb);
- $env{'user.error.msg'}=
- "$requrl:bre:1:1:Invalid Access";
- return HTTP_NOT_ACCEPTABLE;
- }
- } else {
- $symb=&Apache::lonnet::symbread($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;
+ $symb);
+ $env{'user.error.msg'}=
+ "$requrl:bre:1:1:Invalid Access";
+ 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) && $symb) {
+ my ($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;
}
- $env{'request.symb'}=$symb;
- &Apache::lonnet::courseacclog($symb);
- } else {
+ &Apache::lonnet::courseacclog($symb);
+ } else {
# ------------------------------------------------------- This is other content
- &Apache::lonnet::courseacclog($requrl);
+ &Apache::lonnet::courseacclog($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;
}
- }
- return OK;
- } else {
- $r->log_reason("Cookie $handle not valid", $r->filename);
}
}
-
# -------------------------------------------- See if this is a public resource
- if ($requrl=~m|^/public/|
- || (&Apache::lonnet::metadata($requrl,'copyright') eq 'public')) {
- &Apache::lonnet::logthis('Granting public access: '.$requrl);
- &Apache::lonlocal::get_language_handle($r);
- my $cookie=
- &Apache::lonauth::success($r,'public','public','public');
- my $lonidsdir=$r->dir_config('lonIDsDir');
- &Apache::lonnet::transfer_profile_to_env($lonidsdir,$cookie);
- &Apache::lonacc::get_posted_cgi($r);
- $env{'request.state'} = "published";
- $env{'request.publicaccess'} = 1;
- $env{'request.filename'} = $r->filename;
-
- $r->header_out('Set-cookie',"lonID=$cookie; path=/");
- return OK;
- }
if ($requrl=~m|^/+adm/+help/+|) {
- return OK;
+ return OK;
}
-# ------------------------------------- See if this is a viewable portfolio file
- if ($requrl =~ m|/+uploaded/([^/]+)/([^/]+)/portfolio(/.+)$|) {
- my $result = &portfolio_access($1,$2,$3);
- if ($result eq 'ok') {
- return OK;
- } elsif ($result =~ /^[^:]+:guest_/) {
- &passphrase_access_checker($r,$result,$requrl);
- return OK;
- }
- } elsif ($requrl =~ m|/+uploaded/([^/]+)/([^/]+)/groups/([^/]+)/portfolio/(.+)$|) {
- my $result = &portfolio_access($1,$2,$3.'/'.$4,$3);
- if ($result eq 'ok') {
- return OK;
- } elsif ($result =~ /^[^:]+:guest_/) {
- &passphrase_access_checker($r,$result,$requrl);
+# ------------------------------------ See if this is a viewable portfolio file
+ if (&Apache::lonnet::is_portfolio_url($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($r);
return OK;
}
+ if (($access ne '2') && ($access ne 'F')) {
+ $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
+ return HTTP_NOT_ACCEPTABLE;
+ }
}
+
# -------------------------------------------------------------- Not authorized
$requrl=~/\.(\w+)$/;
# if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
@@ -549,64 +965,9 @@ sub handler {
1;
__END__
-=head1 NAME
-
-Apache::lonacc - Cookie Based Access Handler
-
-=head1 SYNOPSIS
-
-Invoked (for various locations) by /etc/httpd/conf/srm.conf:
-
- PerlAccessHandler Apache::lonacc
-
-=head1 INTRODUCTION
-
-This module enables cookie based authentication and is used
-to control access for many different LON-CAPA URIs.
-
-Whenever the client sends the cookie back to the server,
-this cookie is handled by either lonacc.pm or loncacc.pm
-(see srm.conf for what is invoked when). If
-the cookie is missing or invalid, the user is re-challenged
-for login information.
-
-This is part of the LearningOnline Network with CAPA project
-described at http://www.lon-capa.org.
-
-=head1 HANDLER SUBROUTINE
-
-This routine is called by Apache and mod_perl.
-
-=over 4
-
-=item *
-
-transfer profile into environment
-
-=item *
-
-load POST parameters
-
-=item *
-
-check access
-
-=item *
-
-if allowed, get symb, log, generate course statistics if applicable
-
-=item *
-
-otherwise return error
-
-=item *
-
-see if public resource
-
-=item *
-
-store attempted access
+=pod
=back
=cut
+
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