--- loncom/auth/lonacc.pm 2006/06/16 22:54:30 1.80 +++ loncom/auth/lonacc.pm 2013/12/05 05:19:14 1.147 @@ -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 1.147 2013/12/05 05:19:14 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; @@ -35,13 +100,16 @@ 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 qw(:DEFAULT :match); sub cleanup { my ($r)=@_; if (! $r->is_initial_req()) { return DECLINED; } &Apache::lonnet::save_cache(); + &Apache::lontexconvert::jsMath_reset(); return OK; } @@ -54,13 +122,14 @@ sub goodbye { ############################################### sub get_posted_cgi { - my ($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 +138,13 @@ 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 +152,35 @@ 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) { + $value=~s/[\r\n]$//; + } + } + 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 +226,480 @@ 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 = $key; - last; +=pod + +=over + +=item upload_size_allowed() + + Perform size checks for file uploads to essayresponse items in course context. + + Add form.HWFILESIZE.$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 'ok'; +} + +=pod + +=item sso_login() + + handle the case of the single sign on user, at this point $r->user + will be set and valia;d now need to find the loncapa user info, and possibly + balance them. If Apache >= 2.4, $r->user() will also have been set so + $curruser is checked, and if null, this is an SSO case. + returns OK if it was a SSO and user was handled + undef if not SSO or no means to hanle the user + +=cut + +sub sso_login { + my ($r,$handle,$curruser) = @_; + + my $lonidsdir=$r->dir_config('lonIDsDir'); + if (($r->user eq '') || ($curruser ne '') || + (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 $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}; + } + } + } + + my %sessiondata; + if ($form{'iptoken'}) { + %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'}); + my $delete = &Apache::lonnet::tmpdel($form{'token'}); + } + + 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 $form{'udom'}) && + ($sessiondata{'username'} eq $form{'uname'})) { + $hosthere = 1; } } - if ($public) { - return 'ok'; + unless ($hosthere) { + ($is_balancer,$otherserver) = + &Apache::lonnet::check_loadbalancing($user,$domain); } + + if ($is_balancer) { + # login but immediately 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'); + } + 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; + my $c = $r->connection; + eval { + $ip = $c->remote_ip(); + }; + if ($@) { + $ip = $c->client_ip(); + } + my %info=('ip' => $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 = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}); + } + } + } + if (grep(/^sso$/,@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'); - - 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 (&Apache::lonnet::is_domainimage($requrl)) { + return OK; } - if ($sso_login) { - &Apache::lonnet::appenv('request.sso.login' => 1); + if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) { + return OK; } - if ($r->dir_config("lonBalancer") eq 'yes') { - $r->set_handlers('PerlResponseHandler'=> - [\&Apache::switchserver::handler]); + my $curruser; + my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\$curruser); + + my $result = &sso_login($r,$handle,$curruser); + 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())) { + $r->log_reason("Cookie $handle 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 $suppext; + if ($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') { + $preserved .= $pair.'&'; + } + if (($env{'request.course.id'}) && ($name eq 'folderpath')) { + if ($value =~ /^supplemental/) { + $suppext = 1; + } + } + } + $preserved =~ s/\&$//; + if ($preserved) { + $env{'request.external.querystring'} = $preserved; + } } - $env{'request.filename'} = $r->filename; - $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl); + } 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/) { + $suppext = 1; + } + } + } + } + } # -------------------------------------------------------- Load POST parameters - &Apache::lonacc::get_posted_cgi($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; - } +# ------------------------------------------------------ Check if load balancer + + my $checkexempt; + if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) { + if ($env{'user.loadbalcheck.time'} + 600 > time) { + $checkexempt = 1; } - if ($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 ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) { + $checkexempt = 1; + } + unless ($checkexempt) { + ($is_balancer,$otherserver) = + &Apache::lonnet::check_loadbalancing($env{'user.name'}, + $env{'user.domain'}); + } + if ($is_balancer) { + $r->set_handlers('PerlResponseHandler'=> + [\&Apache::switchserver::handler]); + if ($otherserver ne '') { + $env{'form.otherserver'} = $otherserver; } - if ($requrl =~ m|^/prtspool/|) { - my $start='/prtspool/'.$env{'user.name'}.'_'. - $env{'user.domain'}; - if ($requrl !~ /^\Q$start\E/) { + } + +# ---------------------------------------------------------------- Check access + 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 (($access ne '2') && ($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; + } + } + } 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$/)) { + $requrl=~/\.(\w+)$/; + my $query=$r->args; + if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') || + ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) || + ($requrl=~/^\/adm\/wrapper\//) || + ($requrl=~m|^/adm/coursedocs/showdoc/|) || + ($requrl=~m|\.problem/smpedit$|) || + ($requrl=~/^\/public\/.*\/syllabus$/) || + ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) || + ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/)) { # ------------------------------------- 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 ($requrl =~ m|^/adm/wrapper/| + if ($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,$mid]); + &Apache::lonnet::symbverify($symb,$1)) || + (($requrl=~m|(.*/aboutme)/portfolio$|) && + &Apache::lonnet::symbverify($symb,$1))) { + my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); + &Apache::lonnet::symblist($map,$murl => [$murl,$mid], + 'last_known' =>[$murl,$mid]); } 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; } - if ($symb) { - my ($map,$mid,$murl)= - &Apache::lonnet::decode_symb($symb); - &Apache::lonnet::symblist($map,$murl =>[$murl,$mid], - 'last_known' =>[$murl,$mid]); + } else { + if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) { + $requrl = $1; + } + unless ($suppext) { + $symb=&Apache::lonnet::symbread($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 ($symb) { + my ($map,$mid,$murl)= + &Apache::lonnet::decode_symb($symb); + &Apache::lonnet::symblist($map,$murl =>[$murl,$mid], + 'last_known' =>[$murl,$mid]); + } } - } - $env{'request.symb'}=$symb; - &Apache::lonnet::courseacclog($symb); - } else { + } + $env{'request.symb'}=$symb; + &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 ($requrl =~ m|/+uploaded/([^/]+)/([^/]+)/groups/([^/]+)/portfolio/(.+)$|) { - 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 +718,9 @@ 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 + 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.