--- loncom/auth/lonacc.pm 2014/01/04 23:21:22 1.151 +++ loncom/auth/lonacc.pm 2019/08/01 02:51:45 1.159.2.8 @@ -1,7 +1,7 @@ # The LearningOnline Network # Cookie Based Access Handler # -# $Id: lonacc.pm,v 1.151 2014/01/04 23:21:22 raeburn Exp $ +# $Id: lonacc.pm,v 1.159.2.8 2019/08/01 02:51:45 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -109,7 +109,6 @@ sub cleanup { my ($r)=@_; if (! $r->is_initial_req()) { return DECLINED; } &Apache::lonnet::save_cache(); - &Apache::lontexconvert::jsMath_reset(); return OK; } @@ -160,6 +159,8 @@ sub get_posted_cgi { if (length($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})); @@ -280,15 +281,17 @@ sub upload_size_allowed { sub sso_login { my ($r,$handle,$username) = @_; - my $lonidsdir=$r->dir_config('lonIDsDir'); - if (($r->user eq '') || ($username ne '') || + 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 $query = $r->args; my %form; @@ -305,7 +308,10 @@ sub sso_login { my %sessiondata; if ($form{'iptoken'}) { %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'}); - my $delete = &Apache::lonnet::tmpdel($form{'token'}); + my $delete = &Apache::lonnet::tmpdel($form{'iptoken'}); + unless ($sessiondata{'sessionserver'}) { + delete($form{'iptoken'}); + } } my $domain = $r->dir_config('lonSSOUserDomain'); @@ -317,17 +323,35 @@ sub sso_login { &Apache::lonnet::logthis(" SSO authorized user $user "); my ($is_balancer,$otherserver,$hosthere); if ($form{'iptoken'}) { - if (($sessiondata{'domain'} eq $form{'udom'}) && - ($sessiondata{'username'} eq $form{'uname'})) { + if (($sessiondata{'domain'} eq $domain) && + ($sessiondata{'username'} eq $user)) { $hosthere = 1; } } unless ($hosthere) { ($is_balancer,$otherserver) = - &Apache::lonnet::check_loadbalancing($user,$domain); + &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) { + 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'); @@ -345,27 +369,20 @@ sub sso_login { } 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 $ip = $r->get_remote_host(); my %info=('ip' => $ip, 'domain' => $domain, 'username' => $user, 'server' => $r->dir_config('lonHostID'), 'sso.login' => 1 ); - foreach my $item ('role','symb') { + foreach my $item ('role','symb','iptoken') { if (exists($form{$item})) { $info{$item} = $form{$item}; } } unless ($info{'symb'}) { - unless ($r->uri eq '/adm/roles') { + unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) { $info{'origurl'} = $r->uri; } } @@ -376,6 +393,9 @@ sub sso_login { $info{'sso.reloginserver'} = $r->dir_config('lonSSOReloginServer'); } + if (($is_balancer) && ($hosthere)) { + $info{'noloadbalance'} = $hosthere; + } my $token = &Apache::lonnet::tmpput(\%info, $r->dir_config('lonHostID')); @@ -384,10 +404,8 @@ sub sso_login { $r->set_handlers('PerlHandler'=> undef); } return OK; - } elsif (defined($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); @@ -401,13 +419,18 @@ 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)) { + $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; } - $r->set_handlers('PerlHandler'=> undef); - return OK; } return undef; } @@ -437,7 +460,10 @@ sub handler { my ($is_balancer,$otherserver); if ($handle eq '') { - unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) { + 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 '') { @@ -468,14 +494,14 @@ sub handler { } $env{'request.filename'} = $r->filename; $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl); - my $suppext; + my ($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 ($name eq 'symb') { + unless (($name eq 'symb') || ($name eq 'usehttp')) { $preserved .= $pair.'&'; } if (($env{'request.course.id'}) && ($name eq 'folderpath')) { @@ -489,6 +515,9 @@ sub handler { $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/$cnum/syllabus$}))) { @@ -503,6 +532,20 @@ sub handler { } } } + 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 $expected = $Apache::lonnet::protocol{$lonhost}.'://'.$hostname; + unless ($actual eq $expected) { + $env{'request.use_absolute'} = $expected; + } + } } # -------------------------------------------------------- Load POST parameters @@ -513,7 +556,7 @@ sub handler { my $checkexempt; if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) { if ($env{'user.loadbalcheck.time'} + 600 > time) { - $checkexempt = 1; + $checkexempt = 1; } } if ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) { @@ -523,12 +566,27 @@ sub handler { ($is_balancer,$otherserver) = &Apache::lonnet::check_loadbalancing($env{'user.name'}, $env{'user.domain'}); + if ($is_balancer) { + unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) { + # 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 = $found_server; + } + } + } } if ($is_balancer) { - $r->set_handlers('PerlResponseHandler'=> - [\&Apache::switchserver::handler]); - if ($otherserver ne '') { - $env{'form.otherserver'} = $otherserver; + unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) { + $r->set_handlers('PerlResponseHandler'=> + [\&Apache::switchserver::handler]); + if ($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'} = $r->uri; } } @@ -537,6 +595,13 @@ sub handler { if ($requrl !~ m{^/(?:adm|public|prtspool)/} || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) { my $access=&Apache::lonnet::allowed('bre',$requrl); + 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; @@ -564,6 +629,12 @@ sub handler { return HTTP_NOT_ACCEPTABLE; } } + } elsif (($handle =~ /^publicuser_\d+$/) && (&Apache::lonnet::is_portfolio_url($requrl))) { + my $clientip = $r->get_remote_host(); + if (&Apache::lonnet::allowed('bre',$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; @@ -702,7 +773,8 @@ 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 = $r->get_remote_host(); + my $access=&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip); if ($access eq 'A') { &Apache::restrictedaccess::setup_handler($r); return OK;