'.&mt('You are already logged in!').'
' .''.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].', '','','','').'
' + .'--- loncom/auth/lonlogin.pm 2018/07/04 16:58:19 1.173 +++ loncom/auth/lonlogin.pm 2025/02/09 22:42:12 1.209 @@ -1,7 +1,7 @@ # The LearningOnline Network # Login Screen # -# $Id: lonlogin.pm,v 1.173 2018/07/04 16:58:19 raeburn Exp $ +# $Id: lonlogin.pm,v 1.209 2025/02/09 22:42:12 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -37,7 +37,9 @@ use Apache::lonauth(); use Apache::lonlocal; use Apache::migrateuser(); use lib '/home/httpd/lib/perl/'; -use LONCAPA; +use LONCAPA qw(:DEFAULT :match); +use URI::Escape; +use HTML::Entities(); use CGI::Cookie(); sub handler { @@ -47,27 +49,73 @@ sub handler { (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'}, $ENV{'REDIRECT_QUERY_STRING'}), ['interface','username','domain','firsturl','localpath','localres', - 'token','role','symb','iptoken']); - if (!defined($env{'form.firsturl'})) { - &Apache::lonacc::get_posted_cgi($r,['firsturl']); - } - if (!defined($env{'form.firsturl'})) { - if ($ENV{'REDIRECT_URL'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) { - $env{'form.firsturl'} = $ENV{'REDIRECT_URL'}; - } - } + 'token','role','symb','iptoken','btoken','ltoken','ttoken','linkkey', + 'saml','sso','retry','display']); # -- check if they are a migrating user if (defined($env{'form.token'})) { - return &Apache::migrateuser::handler($r); + return &Apache::migrateuser::handler($r); + } + + my $lonhost = $r->dir_config('lonHostID'); + if ($env{'form.ttoken'}) { + my %info = &Apache::lonnet::tmpget($env{'form.ttoken'}); + &Apache::lonnet::tmpdel($env{'form.ttoken'}); + if ($info{'origurl'}) { + $env{'form.firsturl'} = $info{'origurl'}; + } + if ($info{'ltoken'}) { + $env{'form.ltoken'} = $info{'ltoken'}; + } elsif ($info{'linkprot'}) { + $env{'form.linkprot'} = $info{'linkprot'}; + foreach my $item ('linkprotuser','linkprotexit','linkprotpbid','linkprotpburl') { + if ($info{$item} ne '') { + $env{'form.'.$item} = $info{$item}; + } + } + } elsif ($info{'linkkey'} ne '') { + $env{'form.linkkey'} = $info{'linkkey'}; + } + } elsif (($env{'form.sso'}) || ($env{'form.retry'})) { + my $infotoken; + if ($env{'form.sso'}) { + $infotoken = $env{'form.sso'}; + } else { + $infotoken = $env{'form.retry'}; + } + my $data = &Apache::lonnet::reply('tmpget:'.$infotoken,$lonhost); + unless (($data=~/^error/) || ($data eq 'con_lost') || + ($data eq 'no_such_host')) { + my %info = &decode_token($data); + foreach my $item (keys(%info)) { + $env{'form.'.$item} = $info{$item}; + } + &Apache::lonnet::tmpdel($infotoken); + } + } else { + if (!defined($env{'form.firsturl'})) { + &Apache::lonacc::get_posted_cgi($r,['firsturl']); + } + if (!defined($env{'form.firsturl'})) { + if ($ENV{'REDIRECT_URL'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) { + $env{'form.firsturl'} = $ENV{'REDIRECT_URL'}; + } + } + if (($env{'form.firsturl'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) && + (!$env{'form.ltoken'}) && (!$env{'form.linkprot'}) && (!$env{'form.linkkey'})) { + &Apache::lonacc::get_posted_cgi($r,['linkkey']); + } + if ($env{'form.firsturl'} eq '/adm/logout') { + delete($env{'form.firsturl'}); + } } # For "public user" - remove any exising "public" cookie, as user really wants to log-in my ($handle,$lonidsdir,$expirepub,$userdom); + $lonidsdir=$r->dir_config('lonIDsDir'); unless ($r->header_only) { $handle = &Apache::lonnet::check_for_valid_session($r,'lonID',undef,\$userdom); if ($handle ne '') { - $lonidsdir=$r->dir_config('lonIDsDir'); if ($handle=~/^publicuser\_/) { unlink($r->dir_config('lonIDsDir')."/$handle.id"); undef($handle); @@ -106,6 +154,103 @@ sub handler { return OK; } +# 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($r,1); + if ($found_server) { + my $hostname = &Apache::lonnet::hostname($found_server); + if ($hostname ne '') { + my $protocol = $Apache::lonnet::protocol{$found_server}; + $protocol = 'http' if ($protocol ne 'https'); + my $dest = '/adm/roles'; + if ($env{'form.firsturl'} ne '') { + $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&'); + } + my %info = ( + balcookie => $lonhost.':'.$balancer_cookie, + ); + if ($env{'form.role'}) { + $info{'role'} = $env{'form.role'}; + } + if ($env{'form.symb'}) { + $info{'symb'} = $env{'form.symb'}; + } + if (($env{'form.firsturl'} eq '/adm/email') && ($env{'form.display'} ne '')) { + if ($env{'form.sso'}) { + if ($env{'form.mailrecip'}) { + $info{'display'} = &escape($env{'form.display'}); + $info{'mailrecip'} = &escape($env{'form.mailrecip'}); + } + } else { + if (($env{'form.username'}) && ($env{'form.domain'})) { + $info{'display'} = &escape($env{'form.display'}); + $info{'mailrecip'} = &escape($env{'form.username'}.':'.$env{'form.domain'}); + } + } + } + my $balancer_token = &Apache::lonnet::tmpput(\%info,$found_server); + unless (($balancer_token eq 'con_lost') || ($balancer_token eq 'refused') || + ($balancer_token eq 'unknown_cmd') || ($balancer_token eq 'no_such_host')) { + $dest .= (($dest=~/\?/)?'&':'?') . 'btoken='.$balancer_token; + } + if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { + my %link_info; + if ($env{'form.ltoken'}) { + $link_info{'ltoken'} = $env{'form.ltoken'}; + } elsif ($env{'form.linkprot'}) { + $link_info{'linkprot'} = $env{'form.linkprot'}; + foreach my $item ('linkprotuser','linkprotexit','linkprotpbid','linkprotpburl') { + if ($env{'form.'.$item} ne '') { + $link_info{$item} = $env{'form.'.$item}; + } + } + } elsif ($env{'form.linkkey'} ne '') { + $link_info{'linkkey'} = $env{'form.linkkey'}; + } + if (keys(%link_info)) { + $link_info{'origurl'} = $env{'form.firsturl'}; + my $token = &Apache::lonnet::tmpput(\%link_info,$found_server,'link'); + unless (($token eq 'con_lost') || ($token eq 'refused') || + ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { + $dest .= (($dest=~/\?/)?'&':'?') . 'ttoken='.$token; + } + } + } + unless ($found_server eq $lonhost) { + my $alias = &Apache::lonnet::use_proxy_alias($r,$found_server); + $hostname = $alias if ($alias ne ''); + } + my $url = $protocol.'://'.$hostname.$dest; + my $start_page = + &Apache::loncommon::start_page('Switching Server ...',undef, + {'redirect' => [0,$url],}); + my $end_page = &Apache::loncommon::end_page(); + $r->print($start_page.$end_page); + return OK; + } + } + +# +# Check if a LON-CAPA load balancer sent user here because user's browser sent +# it a balancer cookie for an active session on this server. +# + + my $balcookie; + if ($env{'form.btoken'}) { + my %info = &Apache::lonnet::tmpget($env{'form.btoken'}); + $balcookie = $info{'balcookie'}; + &Apache::lonnet::tmpdel($env{'form.btoken'}); + delete($env{'form.btoken'}); + if (($env{'form.firsturl'} eq '/adm/email') && + (exists($info{'display'})) && (exists($info{'mailrecip'}))) { + $env{'form.display'} = &unescape($info{'display'}); + $env{'form.mailrecip'} = &unescape($info{'mailrecip'}); + } + } + + (undef,undef,undef,my $clientmathml,my $clientunicode,undef,my $clientmobile) = + &Apache::loncommon::decode_user_agent($r); + # # If browser sent an old cookie for which the session file had been removed # check if configuration for user's domain has a portal URL set. If so @@ -123,24 +268,130 @@ sub handler { } } - $env{'form.firsturl'} =~ s/(`)/'/g; - # -------------------------------- Prevent users from attempting to login twice if ($handle ne '') { &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); + my $args = {}; + if ($clientunicode && !$clientmathml) { + $args->{'browser.unicode'} = 1; + } my $start_page = - &Apache::loncommon::start_page('Already logged in'); + &Apache::loncommon::start_page('Already logged in','',$args); my $end_page = &Apache::loncommon::end_page(); my $dest = '/adm/roles'; if ($env{'form.firsturl'} ne '') { - $dest = $env{'form.firsturl'}; + $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&'); + } + if (($env{'form.ltoken'}) || ($env{'form.linkprot'})) { + my ($linkprot,$linkprotuser,$linkprotexit,$linkprotpbid,$linkprotpburl); + if ($env{'form.ltoken'}) { + my %info = &Apache::lonnet::tmpget($env{'form.ltoken'}); + $linkprot = $info{'linkprot'}; + if ($info{'linkprotuser'} ne '') { + $linkprotuser = $info{'linkprotuser'}; + } + if ($info{'linkprotexit'} ne '') { + $linkprotexit = $info{'linkprotexit'}; + } + if ($info{'linkprotpbid'} ne '') { + $linkprotpbid = $info{'linkprotpbid'}; + } + if ($info{'linkprotpburl'} ne '') { + $linkprotpburl = $info{'linkprotpburl'}; + } + } else { + $linkprot = $env{'form.linkprot'}; + $linkprotuser = $env{'form.linkprotuser'}; + $linkprotexit = $env{'form.linkprotexit'}; + $linkprotpbid = $env{'form.linkprotpbid'}; + $linkprotpburl = $env{'form.linkprotpburl'}; + } + if ($linkprot) { + my ($linkprotector,$deeplink) = split(/:/,$linkprot,2); + if (($deeplink =~ m{^/tiny/$match_domain/\w+$}) && + ($linkprotuser ne '') && ($linkprotuser ne $env{'user.name'}.':'.$env{'user.domain'})) { + my $ip = &Apache::lonnet::get_requestor_ip(); + my %linkprotinfo = ( + origurl => $deeplink, + linkprot => $linkprot, + linkprotuser => $linkprotuser, + linkprotexit => $linkprotexit, + linkprotpbid => $linkprotpbid, + linkprotpburl => $linkprotpburl, + ); + if ($env{'form.ltoken'}) { + my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'}); + } + &Apache::migrateuser::logout($r,$ip,$handle,undef,undef,\%linkprotinfo); + return OK; + } + if ($env{'user.linkprotector'}) { + my @protectors = split(/,/,$env{'user.linkprotector'}); + unless (grep(/^\Q$linkprotector\E$/,@protectors)) { + push(@protectors,$linkprotector); + @protectors = sort { $a <=> $b } @protectors; + &Apache::lonnet::appenv({'user.linkprotector' => join(',',@protectors)}); + } + } else { + &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector }); + } + if ($env{'user.linkproturi'}) { + my @proturis = split(/,/,$env{'user.linkproturi'}); + unless (grep(/^\Q$deeplink\E$/,@proturis)) { + push(@proturis,$deeplink); + @proturis = sort @proturis; + &Apache::lonnet::appenv({'user.linkproturi' => join(',',@proturis)}); + } + } else { + &Apache::lonnet::appenv({'user.linkproturi' => $deeplink}); + } + } + } elsif ($env{'form.linkkey'} ne '') { + if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { + my $linkkey = $env{'form.linkkey'}; + if ($env{'user.deeplinkkey'}) { + my @linkkeys = split(/,/,$env{'user.deeplinkkey'}); + unless (grep(/^\Q$linkkey\E$/,@linkkeys)) { + push(@linkkeys,$linkkey); + &Apache::lonnet::appenv({'user.deeplinkkey' => join(',',sort(@linkkeys))}); + } + } else { + &Apache::lonnet::appenv({'user.deeplinkkey' => $linkkey}); + } + my $deeplink = $env{'form.firsturl'}; + if ($env{'user.keyedlinkuri'}) { + my @keyeduris = split(/,/,$env{'user.keyedlinkuri'}); + unless (grep(/^\Q$deeplink\E$/,@keyeduris)) { + push(@keyeduris,$deeplink); + &Apache::lonnet::appenv({'user.keyedlinkuri' => join(',',sort(@keyeduris))}); + } + } else { + &Apache::lonnet::appenv({'user.keyedlinkuri' => $deeplink}); + } + } + } + if ($env{'form.ltoken'}) { + my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'}); + } + if (($env{'form.firsturl'} eq '/adm/email') && ($env{'form.display'})) { + if ($env{'form.mailrecip'}) { + if ($env{'form.mailrecip'} eq "$env{'user.name'}:$env{'user.domain'}") { + $dest .= (($dest=~/\?/)?'&':'?') . 'display='.&escape($env{'form.display'}). + '&mailrecip='.&escape($env{'form.mailrecip'}); + } + } elsif (($env{'form.username'} eq $env{'user.name'}) && ($env{'form.domain'} eq $env{'user.domain'})) { + $dest .= (($dest=~/\?/)?'&':'?') . 'display='.&escape($env{'form.display'}). + '&mailrecip='.&escape("$env{'user.name'}:$env{'form.domain'}"); + } } $r->print( $start_page + .'
'.&mt('You are already logged in!').'
' .''.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].', '','','','').'
' + .''.&mt('Please attempt to login to one of the following servers:') .'
' .$spares); } - $r->print('' + $r->print('