--- loncom/auth/lonlogin.pm 2009/10/21 12:29:40 1.128 +++ loncom/auth/lonlogin.pm 2024/09/18 16:35:51 1.158.2.13.2.12 @@ -1,7 +1,7 @@ # The LearningOnline Network # Login Screen # -# $Id: lonlogin.pm,v 1.128 2009/10/21 12:29:40 raeburn Exp $ +# $Id: lonlogin.pm,v 1.158.2.13.2.12 2024/09/18 16:35:51 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -37,7 +37,10 @@ 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 { my $r = shift; @@ -46,90 +49,394 @@ sub handler { (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'}, $ENV{'REDIRECT_QUERY_STRING'}), ['interface','username','domain','firsturl','localpath','localres', - 'token','role','symb']); - if (!defined($env{'form.firsturl'})) { - &Apache::lonacc::get_posted_cgi($r,['firsturl']); - } + 'token','role','symb','iptoken','btoken','ltoken','ttoken','linkkey', + 'saml','sso','retry','display']); # -- check if they are a migrating user if (defined($env{'form.token'})) { return &Apache::migrateuser::handler($r); } + 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 ($handle ne '') { + if ($handle=~/^publicuser\_/) { + unlink($r->dir_config('lonIDsDir')."/$handle.id"); + undef($handle); + undef($userdom); + $expirepub = 1; + } + } + } + &Apache::loncommon::no_cache($r); &Apache::lonlocal::get_language_handle($r); &Apache::loncommon::content_type($r,'text/html'); + if ($expirepub) { + my $c = new CGI::Cookie(-name => 'lonPubID', + -value => '', + -expires => '-10y',); + $r->header_out('Set-cookie' => $c); + } elsif (($handle eq '') && ($userdom ne '')) { + my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); + foreach my $name (keys(%cookies)) { + next unless ($name =~ /^lon(|S|Link|Pub)ID$/); + my $c = new CGI::Cookie(-name => $name, + -value => '', + -expires => '-10y',); + $r->headers_out->add('Set-cookie' => $c); + } + } $r->send_http_header; return OK if $r->header_only; # Are we re-routing? - if (-e '/home/httpd/html/lon-status/reroute.txt') { + my $londocroot = $r->dir_config('lonDocRoot'); + if (-e "$londocroot/lon-status/reroute.txt") { &Apache::lonauth::reroute($r); return OK; } +# Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer) + + my ($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'}); + } + } + +# +# 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 +# switch user's log-in to the portal. +# + + if (($handle eq '') && ($userdom ne '')) { + my %domdefaults = &Apache::lonnet::get_domain_defaults($userdom); + if ($domdefaults{'portal_def'} =~ /^https?\:/) { + my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef, + {'redirect' => [0,$domdefaults{'portal_def'}],}); + my $end_page = &Apache::loncommon::end_page(); + $r->print($start_page.$end_page); + return OK; + } + } # -------------------------------- Prevent users from attempting to login twice - my $handle = &Apache::lonnet::check_for_valid_session($r); - if ($handle=~/^publicuser\_/) { -# For "public user" - remove it, we apparently really want to login - unlink($r->dir_config('lonIDsDir')."/$handle.id"); - } elsif ($handle ne '') { -# Indeed, a valid token is found + if ($handle ne '') { + &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); my $start_page = &Apache::loncommon::start_page('Already logged in'); 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('Login problems?').'

' - .$end_page - ); + $start_page + .'

'.&mt('You are already logged in!').'

' + .'

'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].', + '','','','').'

' + .$end_page + ); return OK; } # ---------------------------------------------------- No valid token, continue - # ---------------------------- Not possible to really login to domain "public" +# ---------------------------- Not possible to really login to domain "public" if ($env{'form.domain'} eq 'public') { $env{'form.domain'}=''; $env{'form.username'}=''; } + +# ------ Is this page requested because /adm/migrateuser detected an IP change? + my %sessiondata; + if ($env{'form.iptoken'}) { + %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'}); + unless ($sessiondata{'sessionserver'}) { + my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'}); + delete($env{'form.iptoken'}); + } + } # ----------------------------------------------------------- Process Interface $env{'form.interface'}=~s/\W//g; - my $httpbrowser=$ENV{"HTTP_USER_AGENT"}; + (undef,undef,undef,undef,undef,undef,my $clientmobile) = + &Apache::loncommon::decode_user_agent($r); my $iconpath= &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL')); - my $lonhost = $r->dir_config('lonHostID'); my $domain = &Apache::lonnet::default_login_domain(); - my %domconfhash = &Apache::loncommon::get_domainconf($domain); + my $defdom = $domain; if ($lonhost ne '') { - my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost}; - if (($loginvia ne '') && ($loginvia ne $lonhost)) { - if (&Apache::lonnet::hostname($loginvia) ne '') { - $r->print(&redirect_page($loginvia)); + unless ($sessiondata{'sessionserver'}) { + my $redirect = &check_loginvia($domain,$lonhost,$lonidsdir,$balcookie); + if ($redirect) { + $r->print($redirect); return OK; } } } - if (($env{'form.domain'}) && + if (($sessiondata{'domain'}) && + (&Apache::lonnet::domain($sessiondata{'domain'},'description'))) { + $domain=$sessiondata{'domain'}; + } elsif (($env{'form.domain'}) && (&Apache::lonnet::domain($env{'form.domain'},'description'))) { $domain=$env{'form.domain'}; } + my $role = $r->dir_config('lonRole'); my $loadlim = $r->dir_config('lonLoadLim'); + my $uloadlim= $r->dir_config('lonUserLoadLim'); my $servadm = $r->dir_config('lonAdmEMail'); my $tabdir = $r->dir_config('lonTabDir'); my $include = $r->dir_config('lonIncludes'); @@ -138,9 +445,20 @@ sub handler { my $host_name = &Apache::lonnet::hostname($lonhost); # --------------------------------------------- Default values for login fields - - my $authusername=($env{'form.username'}?$env{'form.username'}:''); - my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain); + + my ($authusername,$authdomain); + if ($sessiondata{'username'}) { + $authusername=$sessiondata{'username'}; + } else { + $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'}); + $authusername=($env{'form.username'}?$env{'form.username'}:''); + } + if ($sessiondata{'domain'}) { + $authdomain=$sessiondata{'domain'}; + } else { + $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'}); + $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain); + } # ---------------------------------------------------------- Determine own load my $loadavg; @@ -149,18 +467,17 @@ sub handler { $loadavg=<$loadfile>; } $loadavg =~ s/\s.*//g; - my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); - my $userloadpercent=&Apache::lonnet::userload(); -# ------------------------------------------------------- Do the load balancing - my $otherserver= &Apache::lonnet::absolute_url($host_name); + my ($loadpercent,$userloadpercent); + if ($loadlim) { + $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); + } + if ($uloadlim) { + $userloadpercent=&Apache::lonnet::userload(); + } + my $firsturl= ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'}); -# ---------------------------------------------------------- Are we overloaded? - if ((($userloadpercent>100.0)||($loadpercent>100.0))) { - my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent); - if ($unloaded) { $otherserver=$unloaded; } - } # ----------------------------------------------------------- Get announcements my $announcements=&Apache::lonnet::getannounce(); @@ -185,108 +502,175 @@ sub handler { if ($uextkey>2147483647) { $uextkey-=4294967296; } # -------------------------------------------------------- Store away log token - my $tokenextras; - if ($env{'form.role'}) { - $tokenextras = '&role='.&escape($env{'form.role'}); - } - if ($env{'form.symb'}) { - if (!$tokenextras) { - $tokenextras = '&'; + my ($tokenextras,$tokentype,$linkprot_for_login); + my @names = ('role','symb','iptoken','ltoken','linkprotuser','linkprotexit', + 'linkprot','linkkey','display','linkprotpbid','linkprotpburl'); + foreach my $name (@names) { + if ($env{'form.'.$name} ne '') { + if ($name eq 'ltoken') { + my %info = &Apache::lonnet::tmpget($env{'form.'.$name}); + if ($info{'linkprot'}) { + $linkprot_for_login = $info{'linkprot'}; + $tokenextras .= '&linkprot='.&escape($info{'linkprot'}); + foreach my $item ('linkprotuser','linkprotexit','linkprotpbid','linkprotpburl') { + if ($info{$item}) { + $tokenextras .= '&'.$item.'='.&escape($info{$item}); + } + } + $tokentype = 'link'; + last; + } + } elsif ($env{'form.display'} && ($env{'form.firsturl'} eq '/adm/email')) { + if (($env{'form.mailrecip'}) || + ($env{'form.username'} =~ /^$match_username$/) && ($env{'form.domain'} =~ /^$match_domain$/)) { + $tokenextras .= '&'.$name.'='.&escape($env{'form.display'}); + if ($env{'form.mailrecip'}) { + $tokenextras .= '&mailrecip='.&escape($env{'form.mailrecip'}); + } else { + $tokenextras .= '&mailrecip='.&escape($env{'form.username'}.':'.$env{'form.domain'}); + } + } + } else { + $tokenextras .= '&'.$name.'='.&escape($env{'form.'.$name}); + if (($name eq 'linkkey') || ($name eq 'linkprot')) { + if ((($env{'form.retry'}) || ($env{'form.sso'})) && + (!$env{'form.ltoken'}) && ($name eq 'linkprot')) { + $linkprot_for_login = $env{'form.linkprot'}; + } + $tokentype = 'link'; + } + } } - $tokenextras .= '&symb='.&escape($env{'form.symb'}); + } + if ($tokentype) { + $tokenextras .= ":$tokentype"; } my $logtoken=Apache::lonnet::reply( - 'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras, + 'tmpput:'.$ukey.$lkey.'&'.&escape($firsturl).$tokenextras, $lonhost); -# ------------------- If we cannot talk to ourselves, we are in serious trouble +# -- If we cannot talk to ourselves, or hostID does not map to a hostname +# we are in serious trouble - if ($logtoken eq 'con_lost') { + if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) { + if ($logtoken eq 'no_such_host') { + &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab'); + } + if ($env{'form.ltoken'}) { + &Apache::lonnet::tmpdel($env{'form.ltoken'}); + delete($env{'form.ltoken'}); + } my $spares=''; - my $last; - foreach my $hostid (sort - { - &Apache::lonnet::hostname($a) cmp - &Apache::lonnet::hostname($b); - } - keys(%Apache::lonnet::spareid)) { + my (@sparehosts,%spareservers); + my $sparesref = &Apache::lonnet::this_host_spares($defdom); + if (ref($sparesref) eq 'HASH') { + foreach my $key (keys(%{$sparesref})) { + if (ref($sparesref->{$key}) eq 'ARRAY') { + my @sorted = sort { &Apache::lonnet::hostname($a) cmp + &Apache::lonnet::hostname($b); + } @{$sparesref->{$key}}; + if (@sorted) { + if ($key eq 'primary') { + unshift(@sparehosts,@sorted); + } elsif ($key eq 'default') { + push(@sparehosts,@sorted); + } + } + } + } + } + foreach my $hostid (@sparehosts) { next if ($hostid eq $lonhost); my $hostname = &Apache::lonnet::hostname($hostid); - next if ($last eq $hostname); - $spares.='
'. $hostname.''. - ' '.&mt('(preferred)').''.$/; - $last=$hostname; + ' '.&mt('(preferred)').''.$/; } -$spares.= '
'; -my %all_hostnames = &Apache::lonnet::all_hostnames(); -foreach my $hostid (sort + if ($spares) { + $spares.= '
'; + } + my %all_hostnames = &Apache::lonnet::all_hostnames(); + foreach my $hostid (sort { &Apache::lonnet::hostname($a) cmp &Apache::lonnet::hostname($b); } keys(%all_hostnames)) { - next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid}); - my $hostname = &Apache::lonnet::hostname($hostid); - next if ($last eq $hostname); - $spares.='
'. - $hostname.''; - $last=$hostname; -} -$r->print( - '' - .'' + next if ($hostid eq $lonhost); + my $hostname = &Apache::lonnet::hostname($hostid); + next if (($hostname eq '') || ($spareservers{$hostname})); + $spareservers{$hostname} = 1; + my $protocol = $Apache::lonnet::protocol{$hostid}; + $protocol = 'http' if ($protocol ne 'https'); + $spares.='<br /><a href="'.$protocol.'://'. + $hostname. + '/adm/login?domain='.$authdomain.'">'. + $hostname.'</a>'; + } + $r->print( + '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' + .'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">' + .'<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>' .&mt('The LearningOnline Network with CAPA') .'' .'' .'

'.&mt('The LearningOnline Network with CAPA').'

' - .'' - .'

'.&mt('This LON-CAPA server is temporarily not available for login.').'

' - .'

'.&mt('Please attempt to login to one of the following servers:').'

' - .$spares - .'' - .'' -); -return OK; -} + .'broken icon' + .'

'.&mt('This LON-CAPA server is temporarily not available for login.').'

'); + if ($spares) { + $r->print('

'.&mt('Please attempt to login to one of the following servers:') + .'

' + .$spares); + } + $r->print('' + .'' + ); + return OK; + } # ----------------------------------------------- Apparently we are in business -$servadm=~s/\,/\
/g; + $servadm=~s/\,/\
/g; # ----------------------------------------------------------- Front page design -my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain); -my $font=&Apache::loncommon::designparm('login.font',$domain); -my $link=&Apache::loncommon::designparm('login.link',$domain); -my $vlink=&Apache::loncommon::designparm('login.vlink',$domain); -my $alink=&Apache::loncommon::designparm('login.alink',$domain); -my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain); -my $logo=&Apache::loncommon::designparm('login.logo',$domain); -my $img=&Apache::loncommon::designparm('login.img',$domain); -my $domainlogo=&Apache::loncommon::domainlogo($domain); -my $login=&Apache::loncommon::designparm('login.login',$domain); -if ($login eq '') { -$login = $iconpath.'/'.&mt('userauthentication.gif'); -} -my $showbanner = 1; -my $showmainlogo = 1; -if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) { - $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain); -} -if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) { - $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain); -} -my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain); -my $showcoursecat = -&Apache::loncommon::designparm('login.coursecatalog',$domain); -my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain); -my $shownewuserlink = -&Apache::loncommon::designparm('login.newuser',$domain); -my $now=time; -my $js = (< // ENDSCRIPT + my ($lonhost_in_use,@hosts,%defaultdomconf,$saml_prefix,$saml_landing, + $samlssotext,$samlnonsso,$samlssoimg,$samlssoalt,$samlssourl,$samltooltip, + $samlwindow); + %defaultdomconf = &Apache::loncommon::get_domainconf($defdom); + @hosts = &Apache::lonnet::current_machine_ids(); + $lonhost_in_use = $lonhost; + if (@hosts > 1) { + foreach my $hostid (@hosts) { + if (&Apache::lonnet::host_domain($hostid) eq $defdom) { + $lonhost_in_use = $hostid; + last; + } + } + } + $saml_prefix = $defdom.'.login.saml_'; + if ($defaultdomconf{$saml_prefix.$lonhost_in_use}) { + $saml_landing = 1; + $samlssotext = $defaultdomconf{$saml_prefix.'text_'.$lonhost_in_use}; + $samlnonsso = $defaultdomconf{$saml_prefix.'notsso_'.$lonhost_in_use}; + $samlssoimg = $defaultdomconf{$saml_prefix.'img_'.$lonhost_in_use}; + $samlssoalt = $defaultdomconf{$saml_prefix.'alt_'.$lonhost_in_use}; + $samlssourl = $defaultdomconf{$saml_prefix.'url_'.$lonhost_in_use}; + $samltooltip = $defaultdomconf{$saml_prefix.'title_'.$lonhost_in_use}; + $samlwindow = $defaultdomconf{$saml_prefix.'window_'.$lonhost_in_use}; + } + if ($saml_landing) { + if ($samlssotext eq '') { + $samlssotext = 'SSO Login'; + } + if ($samlnonsso eq '') { + $samlnonsso = 'Non-SSO Login'; + } + $js .= <<"ENDSAMLJS"; + + + +ENDSAMLJS + } + # --------------------------------------------------- Print login screen header -my %add_entries = ( + my %add_entries = ( bgcolor => "$mainbg", text => "$font", link => "$link", vlink => "$vlink", - alink => "$alink",); + alink => "$alink", + onload => 'javascript:enableInput();',); + + my ($headextra,$headextra_exempt); + $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use}; + $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use}; + if ($headextra) { + my $omitextra; + if ($headextra_exempt ne '') { + my @exempt = split(',',$headextra_exempt); + my $ip = &Apache::lonnet::get_requestor_ip(); + if (grep(/^\Q$ip\E$/,@exempt)) { + $omitextra = 1; + } + } + unless ($omitextra) { + my $confname = $defdom.'-domainconfig'; + if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) { + my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra)); + unless ($extra eq '-1') { + $js .= "\n".$extra."\n"; + } + } + } + } -$r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js, + $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js, { 'redirect' => [$expire,'/adm/roles'], 'add_entries' => \%add_entries, 'only_body' => 1,})); # ----------------------------------------------------------------------- Texts -my %lt=&Apache::lonlocal::texthash( - 'un' => 'Username', - 'pw' => 'Password', - 'dom' => 'Domain', - 'perc' => 'percent', - 'load' => 'Server Load', - 'userload' => 'User Load', - 'catalog' => 'Course Catalog', - 'log' => 'Log in', - 'help' => 'Log-in Help', - 'serv' => 'Server', - 'servadm' => 'Server Administration', - 'helpdesk' => 'Contact Helpdesk', - 'forgotpw' => 'Forgot password?', - 'newuser' => 'New User?', - ); + my %lt=&Apache::lonlocal::texthash( + 'un' => 'Username', + 'pw' => 'Password', + 'dom' => 'Domain', + 'perc' => 'percent', + 'load' => 'Server Load', + 'userload' => 'User Load', + 'catalog' => 'Course/Community Catalog', + 'log' => 'Log in', + 'help' => 'Log-in Help', + 'serv' => 'Server', + 'servadm' => 'Server Administration', + 'helpdesk' => 'Contact Helpdesk', + 'forgotpw' => 'Forgot password?', + 'newuser' => 'New User?', + 'change' => 'Change?', + ); # -------------------------------------------------- Change password field name -my $forgotpw = &forgotpwdisplay(%lt); -my $loginhelp = &loginhelpdisplay(%lt); + + my $forgotpw = &forgotpwdisplay(%lt); + $forgotpw .= '
' if $forgotpw; + my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain); + if ($loginhelp) { + $loginhelp = ''.$lt{'help'}.'
'; + } # ---------------------------------------------------- Serve out DES JavaScript -{ -my $jsh=Apache::File->new($include."/londes.js"); -$r->print(<$jsh>); -} + { + my $jsh=Apache::File->new($include."/londes.js"); + $r->print(<$jsh>); + } # ---------------------------------------------------------- Serve rest of page -$r->print( - '
'); - -# -# If the loadbalancing yielded just http:// because perhaps there's no loadbalancing? -# then just us a relative link to authenticate: -# + $r->print( + '
' +); -$r->print(< + my $target = '_top'; + if ($sessiondata{'linkprot'}) { + my ($linkprotector,$deeplink) = split(/:/,$sessiondata{'linkprot'},2); + if (($deeplink eq $sessiondata{'origurl'}) && + (($sessiondata{'linkprotuser'} eq $sessiondata{'username'}.':'.$sessiondata{'domain'}) || + ($sessiondata{'linkprotuser'} eq $sessiondata{'username'}))) { + $target = '_self'; + } + } + $r->print(< - - ENDSERVERFORM -my $coursecatalog; -if (($showcoursecat eq '') || ($showcoursecat)) { - $coursecatalog = &coursecatalog_link($lt{'catalog'}); -} -my $newuserlink; -if ($shownewuserlink) { - $newuserlink = &newuser_link($lt{'newuser'}).'
'; -} -my $logintitle; -if ($loginheader eq 'text') { - $logintitle ='

'.$lt{'log'}.'

'; -} else { - $logintitle = ''. - &mt('User Authentication').''; -} - -my $noscript_warning=''; -my $helpdeskscript; -my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail, - $version,$authdomain,\$helpdeskscript); - -my $loginform=(< + my $coursecatalog; + if (($showcoursecat eq '') || ($showcoursecat)) { + $coursecatalog = &coursecatalog_link($lt{'catalog'}).'
'; + } + my $newuserlink; + if ($shownewuserlink) { + $newuserlink = &newuser_link($lt{'newuser'}).'
'; + } + my $logintitle = + '

' + .$lt{'log'} + .'

'; + + my $noscript_warning=''; + my $helpdeskscript; + my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail, + $authdomain,\$helpdeskscript, + $showhelpdesk,\@possdoms); + + my $mobileargs; + if ($clientmobile) { + $mobileargs = 'autocapitalize="off" autocorrect="off"'; + } + my $loginform=(< :
-
+
:
-
+
:
-
+
LFORM if ($showbanner) { + my $alttext = &Apache::loncommon::designparm('login.alttext_img',$domain); + if ($alttext eq '') { + $alttext = 'The Learning Online Network with CAPA'; + } $r->print(< - - - - -
- The Learning Online Network with CAPA -
+
+ $alttext +
HEADER } - $r->print(< 
-
-
+ + my $stdauthformstyle = 'inline-block'; + my $ssoauthstyle = 'none'; + my $sso_onclick; + my $logintype; + $r->print('
'); + if ($saml_landing) { + $ssoauthstyle = 'inline-block'; + $stdauthformstyle = 'none'; + $logintype = $samlssotext; + my $ssologin = '/adm/sso'; + if ($samlssourl ne '') { + $ssologin = $samlssourl; + } + my $ssologin_for_js = &js_escape($ssologin); + my $querystr_for_js; + if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) { + my $querystring; + if ($env{'form.firsturl'} ne '') { + $querystring = 'origurl='; + if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) { + $querystring .= &uri_escape_utf8($env{'form.firsturl'}); + } else { + $querystring .= &uri_escape($env{'form.firsturl'}); + } + $querystring = &HTML::Entities::encode($querystring,"'"); + } + if ($env{'form.ltoken'} ne '') { + $querystring .= (($querystring eq '')?'':'&') . 'ltoken='. + &HTML::Entities::encode(&uri_escape($env{'form.ltoken'})); + } elsif ($env{'form.linkkey'}) { + $querystring .= (($querystring eq '')?'':'&') . 'linkkey='. + &HTML::Entities::encode(&uri_escape($env{'form.linkkey'})); + } + if ($querystring ne '') { + $ssologin .= (($ssologin=~/\?/)?'&':'?') . $querystring; + $querystr_for_js = &js_escape($querystring); + } + } elsif ($logtoken ne '') { + $ssologin .= (($ssologin=~/\?/)?'&':'?') . 'logtoken='.$logtoken; + $querystr_for_js = &js_escape('logtoken='.$logtoken); + } + my $ssohref; + if ($samlwindow) { + $sso_onclick = <<"ENDJS"; +if (document.getElementById('LC_sso_login_link')) { + var ssoelem = document.getElementById('LC_sso_login_link') + ssoelem.addEventListener('click',samlWinFunction,false); + var windows = {}; + function samlWinFunction(evt) { + evt.preventDefault(); + var url = '$ssologin_for_js'; + var name = 'lcssowin'; + var querystr = '$querystr_for_js'; + if (querystr) { + url += '?'+querystr+'&lcssowin=1'; + } else { + url += '?lcssowin=1'; + } + if ((typeof windows[name] !== 'undefined') && (!windows[name].closed)) { + windows[name].close(); + } + windows[name]=window.open(url,name,'width=350,height=600'); + windows[name].focus(); + return false; + } +} +ENDJS + } + if ($samlssoimg ne '') { + $ssohref = ''. + ''.$samlssoalt.''; + } else { + $ssohref = ''.$samlssotext.''; + } + if (($env{'form.saml'} eq 'no') || + (($env{'form.username'} ne '') && ($env{'form.domain'} ne ''))) { + $ssoauthstyle = 'none'; + $stdauthformstyle = 'inline-block'; + $logintype = $samlnonsso; + } + $r->print(< +Log-in type: +$logintype
+$lt{'change'} +

+
+
+$ssohref +$noscript_warning +
+
+$loginhelp +$contactblock +$coursecatalog +
+
+ENDSAML + } else { + if ($env{'form.ltoken'}) { + &Apache::lonnet::tmpdel($env{'form.ltoken'}); + delete($env{'form.ltoken'}); + } + } + my $in_frame_js; + if ($linkprot_for_login) { + my ($linkprotector,$linkproturi) = split(/:/,$linkprot_for_login,2); + if (($linkprotector =~ /^\d+(c|d)$/) && ($linkproturi =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$})) { + my $set_target; + if (($env{'form.retry'}) || ($env{'form.sso'})) { + if ($linkproturi eq $env{'form.firsturl'}) { + $set_target = " document.server.target = '_self';"; + } + } else { + $set_target = < +// + +ENDJS + } + } elsif ($samlwindow) { + $in_frame_js = < +// + +ENDJS + } + + $r->print(< +
$logintitle - - - - -
- $loginform -
- $noscript_warning + $loginform + $noscript_warning
-
- $loginhelp
- $forgotpw
- $contactblock
- $newuserlink - $coursecatalog +
+ $loginhelp + $forgotpw + $contactblock + $newuserlink + $coursecatalog
-ENDTOP + +ENDLOGIN + $r->print('
'."\n"); if ($showmainlogo) { - $r->print(' '."\n"); + my $alttext = &Apache::loncommon::designparm('login.alttext_logo',$domain); + $r->print(' '."\n"); } $r->print(< 
+
+
ENDTOP - -$r->print(< + my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow); + $domainrow = <<"END"; -    $lt{'dom'}:  + $lt{'dom'}:   $domain +END + $serverrow = <<"END"; -    $lt{'serv'}:  + $lt{'serv'}:   $lonhost ($role) +END + if ($loadlim) { + $loadrow = <<"END"; -    $lt{'load'}:  + $lt{'load'}:   $loadpercent $lt{'perc'} +END + } + if ($uloadlim) { + $userloadrow = <<"END"; -    $lt{'userload'}:  + $lt{'userload'}:   $userloadpercent $lt{'perc'} +END + } + if (($version ne '') && ($version ne '')) { + $versionrow = <<"END"; + + + $version + + +END + } + + $r->print(< + +$domainrow +$serverrow +$loadrow +$userloadrow +$versionrow
+
+
+ $domainlogo +
+
+$in_frame_js ENDSCRIPT } - $contactblock .= <<"ENDBLOCK"; -    $version -ENDBLOCK return $contactblock; } @@ -577,15 +1377,6 @@ sub forgotpwdisplay { return; } -sub loginhelpdisplay { - my (%lt) = @_; - my $login_help = 1; - if ($login_help) { - return ''.$lt{'help'}.''; - } - return; -} - sub coursecatalog_link { my ($linkname) = @_; return <<"END"; @@ -595,7 +1386,21 @@ END sub newuser_link { my ($linkname) = @_; - return '   '.$linkname.'
'; + return ''.$linkname.''; +} + +sub decode_token { + my ($info) = @_; + my ($firsturl,@rest)=split(/\&/,$info); + my %form; + if ($firsturl ne '') { + $form{'firsturl'} = &unescape($firsturl); + } + foreach my $item (@rest) { + my ($key,$value) = split(/=/,$item); + $form{$key} = &unescape($value); + } + return %form; } 1;