--- loncom/auth/lonacc.pm 2006/06/16 22:54:30 1.80 +++ loncom/auth/lonacc.pm 2011/11/18 22:41:02 1.130.6.1 @@ -1,7 +1,7 @@ # The LearningOnline Network # Cookie Based Access Handler # -# $Id: lonacc.pm,v 1.80 2006/06/16 22:54:30 albertel Exp $ +# $Id: lonacc.pm,v 1.130.6.1 2011/11/18 22:41:02 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -27,6 +27,73 @@ # ### +=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 + +=over + +=cut + + package Apache::lonacc; use strict; @@ -35,13 +102,16 @@ use Apache::File; use Apache::lonnet; use Apache::loncommon(); use Apache::lonlocal; -use CGI::Cookie(); +use Apache::restrictedaccess(); +use Apache::blockedaccess(); use Fcntl qw(:flock); +use LONCAPA; sub cleanup { my ($r)=@_; if (! $r->is_initial_req()) { return DECLINED; } &Apache::lonnet::save_cache(); + &Apache::lontexconvert::jsMath_reset(); return OK; } @@ -54,13 +124,14 @@ sub goodbye { ############################################### sub get_posted_cgi { - my ($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) { @@ -69,10 +140,13 @@ 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=''; @@ -80,16 +154,29 @@ 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); + 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++; @@ -135,232 +222,372 @@ 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); - 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 = $key; - last; +=pod + +=item upload_size_allowed() + + Perform size checks for file uploads to essayresponse items in course context. + + Add form.HWFILESIZE.$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 'ok'; +} + +=pod + +=item sso_login() + + handle the case of the single sign on user, at this point $r->user + will be set and valid now need to find the loncapa user info and possibly + balance them + returns OK if it was a SSO and user was handled + undef if not SSO or no means to hanle the user + +=cut + +sub sso_login { + my ($r,$handle) = @_; + + my $lonidsdir=$r->dir_config('lonIDsDir'); + if (!($r->user + && (!defined($env{'user.name'}) && !defined($env{'user.domain'})) + && ($handle eq ''))) { + # not an SSO case or already logged in + return undef; + } + + my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/); + + my $query = $r->args; + my %form; + if ($query) { + my @items = ('role','symb'); + &Apache::loncommon::get_unprocessed_cgi($query,\@items); + foreach my $item (@items) { + if (defined($env{'form.'.$item})) { + $form{$item} = $env{'form.'.$item}; + } + } + } + + my $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 $user "); + if ($r->dir_config("lonBalancer") eq 'yes') { + # login but immeaditly go to switch server to find us a new + # machine + &Apache::lonauth::success($r,$user,$domain,$home,'noredirect'); + $env{'request.sso.login'} = 1; + if (defined($r->dir_config("lonSSOReloginServer"))) { + $env{'request.sso.reloginserver'} = + $r->dir_config('lonSSOReloginServer'); + } + $r->internal_redirect('/adm/switchserver'); + $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(), + 'domain' => $domain, + 'username' => $user, + 'server' => $r->dir_config('lonHostID'), + 'sso.login' => 1 + ); + foreach my $item ('role','symb') { + if (exists($form{$item})) { + $info{$item} = $form{$item}; + } + } + if ($r->dir_config("ssodirecturl") == 1) { + $info{'origurl'} = $r->uri; + } + if (defined($r->dir_config("lonSSOReloginServer"))) { + $info{'sso.reloginserver'} = + $r->dir_config('lonSSOReloginServer'); + } + my $token = + &Apache::lonnet::tmpput(\%info, + $r->dir_config('lonHostID')); + $env{'form.token'} = $token; + $r->internal_redirect('/adm/migrateuser'); + $r->set_handlers('PerlHandler'=> undef); + } + return OK; + } elsif (defined($r->dir_config('lonSSOUserUnknownRedirect'))) { + &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); + 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 = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}); + } } } - if ($public) { - return 'ok'; + if (grep(/^sso$/,@cancreate)) { + $r->internal_redirect('/adm/createaccount'); + } 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'); + if (&Apache::lonnet::is_domainimage($requrl)) { + return OK; + } - 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); + my $handle = &Apache::lonnet::check_for_valid_session($r); + + my $result = &sso_login($r,$handle); + if (defined($result)) { + return $result; } + if ($r->dir_config("lonBalancer") eq 'yes') { $r->set_handlers('PerlResponseHandler'=> [\&Apache::switchserver::handler]); } - - if ($handle ne '') { - if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) { + + if ($handle eq '') { + $r->log_reason("Cookie $handle not valid", $r->filename); + } elsif ($handle ne '') { # ------------------------------------------------------ Initialize Environment - - &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); + 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 { - $env{'request.state'} = 'unknown'; + if ($requrl=~/^\/+(res|uploaded)\//) { + $env{'request.state'} = "published"; + } else { + $env{'request.state'} = 'unknown'; + } + $env{'request.filename'} = $r->filename; + $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl); + 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 'wrapperdisplay')) { + $preserved .= $pair.'&'; + } + } + $preserved =~ s/\&$//; + if ($preserved) { + $env{'request.external.querystring'} = $preserved; + } } - $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 access - my $now = time; - if ($requrl =~ m|/+uploaded/([^/]+)/([^/]+)/portfolio(/.+)$|) { - my $result = &portfolio_access($1,$2,$3); - if ($result eq 'ok') { - return OK; - } - } elsif ($requrl =~ m|/+uploaded/([^/]+)/([^/]+)/groups/([^/]+)/portfolio/(.+)$|) { - my $result = &portfolio_access($1,$2,$4.'/'.$3,$3); - if ($result eq 'ok') { - 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; - } + my $now = time; + if ($requrl !~ m{^/(?:adm|public|prtspool)/} + || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) { + 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 ($access eq 'A') { + &Apache::restrictedaccess::setup_handler($r); + return OK; + } + if ($access eq 'B') { + &Apache::blockedaccess::setup_handler($r); + return OK; } - if ($requrl =~ m|^/prtspool/|) { - my $start='/prtspool/'.$env{'user.name'}.'_'. - $env{'user.domain'}; - if ($requrl !~ /^\Q$start\E/) { + if (($access ne '2') && ($access ne 'F')) { + if ($requrl =~ m{^/res/}) { + $access = &Apache::lonnet::allowed('bro',$requrl); + 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; - } + } } - 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|^/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 ($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 ($env{'request.course.id'}) { - &Apache::lonnet::countacc($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$/)) { + if ($env{'request.course.id'}) { + my $skiplogging; + if ((!&Apache::loncommon::needs_gci_custom()) && + ($env{'course.'.$env{'request.course.id'}.'.internal.courseowner'} ne $env{'user.name'}.':'.$env{'user.domain'})) { + $skiplogging = 1; + } + unless ($skiplogging) { + &Apache::lonnet::countacc($requrl); + } + $requrl=~/\.(\w+)$/; + my $query=$r->args; + if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') || + ($requrl=~/^\/adm\/.*\/(aboutme|navmaps|smppg|bulletinboard)(\?|$ )/x) || + ($requrl=~/^\/adm\/wrapper\//) || + ($requrl=~m|^/adm/coursedocs/showdoc/|) || + ($requrl=~m|\.problem/smpedit$|) || + ($requrl=~/^\/public\/.*\/syllabus$/)) { # ------------------------------------- This is serious stuff, get symb and log - my $query=$r->args; - my $symb; - if ($query) { + my $symb; + if ($query) { &Apache::loncommon::get_unprocessed_cgi($query,['symb']); - } - if ($env{'form.symb'}) { + } + if ($env{'form.symb'}) { $symb=&Apache::lonnet::symbclean($env{'form.symb'}); - if ($requrl =~ m|^/adm/wrapper/| + if ($requrl =~ m|^/adm/wrapper/| || $requrl =~ m|^/adm/coursedocs/showdoc/|) { - my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); - &Apache::lonnet::symblist($map,$murl => [$murl,$mid], + my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); + &Apache::lonnet::symblist($map,$murl => [$murl,$mid], 'last_known' =>[$murl,$mid]); - } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) || + } elsif ((&Apache::lonnet::symbverify($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,$mid]); + my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); + &Apache::lonnet::symblist($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); + $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; + $env{'user.error.msg'}= + "$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,$mid]); + 'last_known' =>[$murl,$mid]); } + } + $env{'request.symb'}=$symb; + unless ($skiplogging) { + &Apache::lonnet::courseacclog($symb); } - $env{'request.symb'}=$symb; - &Apache::lonnet::courseacclog($symb); - } else { + } else { # ------------------------------------------------------- This is other content - &Apache::lonnet::courseacclog($requrl); + unless ($skiplogging) { + &Apache::lonnet::courseacclog($requrl); + } + } + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};; + if ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/docs/.+\.html?$}) { + 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'; + } + } + } } - } - return OK; - } else { - $r->log_reason("Cookie $handle not valid", $r->filename); - } + } + return OK; } - # -------------------------------------------- See if this is a public resource - if ($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 ($requrl =~ m|/+uploaded/([^/]+)/([^/]+)/groups/([^/]+)/portfolio/(.+)$|) { - my $result = &portfolio_access($1,$2,$4.'/'.$3,$3); - if ($result eq 'ok') { - return OK; - } +# ------------------------------------ See if this is a viewable portfolio file + if (&Apache::lonnet::is_portfolio_url($requrl)) { + my $access=&Apache::lonnet::allowed('bre',$requrl); + 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') || @@ -379,64 +606,9 @@ 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 +