loncom/auth/lonlogin.pm - view

File: [LON-CAPA] / loncom / auth / lonlogin.pm
Revision 1.194: download - view: text, annotated - select for diffs
Sat Jan 15 20:21:06 2022 UTC (2 years, 3 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD

- Domain config for alt attributes for banner, main logo, and domain logo
  used on log-in page.
- Add id attributes to img tags.

# The LearningOnline Network # Login Screen # # $Id: lonlogin.pm,v 1.194 2022/01/15 20:21:06 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # # This file is part of the LearningOnline Network with CAPA (LON-CAPA). # # LON-CAPA is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # LON-CAPA is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with LON-CAPA; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # /home/httpd/html/adm/gpl.txt # # http://www.lon-capa.org/ # package Apache::lonlogin; use strict; use Apache::Constants qw(:common); use Apache::File (); use Apache::lonnet; use Apache::loncommon(); use Apache::lonauth(); use Apache::lonlocal; use Apache::migrateuser(); use lib '/home/httpd/lib/perl/'; use LONCAPA qw(:DEFAULT :match); use URI::Escape; use HTML::Entities(); use CGI::Cookie(); sub handler { my $r = shift; &Apache::loncommon::get_unprocessed_cgi (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'}, $ENV{'REDIRECT_QUERY_STRING'}), ['interface','username','domain','firsturl','localpath','localres', 'token','role','symb','iptoken','btoken','ltoken','ttoken','linkkey', 'saml','sso','retry']); # -- check if they are a migrating user if (defined($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'} = $info{'linkprot'}; } elsif ($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? 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'}; } 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'} = $env{'form.linkprot'}; } elsif ($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($env{'form.btoken'}); } # # If browser sent an old cookie for which the session file had been removed # check if configuration for user's domain has a portal URL set. If so # switch user's log-in to the portal. # if (($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.$end_page); return OK; } } # -------------------------------- Prevent users from attempting to login twice if ($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 '') { $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&'); } if (($env{'form.ltoken'}) || ($env{'form.linkprot'})) { my $linkprot; if ($env{'form.ltoken'}) { my %info = &Apache::lonnet::tmpget($env{'form.ltoken'}); $linkprot = $info{'linkprot'}; my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'}); } else { $linkprot = $env{'form.linkprot'}; } if ($linkprot) { my ($linkprotector,$deeplink) = split(/:/,$linkprot,2); if ($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}); } } } $r->print( $start_page .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>' .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].', '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>' .$end_page ); return OK; } # ---------------------------------------------------- No valid token, continue # ---------------------------- Not possible to really login to domain "public" if ($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; (undef,undef,undef,undef,undef,undef,my $clientmobile) = &Apache::loncommon::decode_user_agent($r); my $iconpath= &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL')); my $domain = &Apache::lonnet::default_login_domain(); my $defdom = $domain; if ($lonhost ne '') { unless ($sessiondata{'sessionserver'}) { my $redirect = &check_loginvia($domain,$lonhost,$lonidsdir,$balcookie); if ($redirect) { $r->print($redirect); return OK; } } } 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'); my $expire = $r->dir_config('lonExpire'); my $version = $r->dir_config('lonVersion'); my $host_name = &Apache::lonnet::hostname($lonhost); # --------------------------------------------- Default values for login fields 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; { my $loadfile=Apache::File->new('/proc/loadavg'); $loadavg=<$loadfile>; } $loadavg =~ s/\s.*//g; my ($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'}); # ----------------------------------------------------------- Get announcements my $announcements=&Apache::lonnet::getannounce(); # -------------------------------------------------------- Set login parameters my @hexstr=('0','1','2','3','4','5','6','7', '8','9','a','b','c','d','e','f'); my $lkey=''; for (0..7) { $lkey.=$hexstr[rand(15)]; } my $ukey=''; for (0..7) { $ukey.=$hexstr[rand(15)]; } my $lextkey=hex($lkey); if ($lextkey>2147483647) { $lextkey-=4294967296; } my $uextkey=hex($ukey); if ($uextkey>2147483647) { $uextkey-=4294967296; } # -------------------------------------------------------- Store away log token my ($tokenextras,$tokentype); my @names = ('role','symb','iptoken','ltoken','linkprot','linkkey'); foreach my $name (@names) { if ($env{'form.'.$name} ne '') { if ($name eq 'ltoken') { my %info = &Apache::lonnet::tmpget($env{'form.'.$name}); if ($info{'linkprot'}) { $tokenextras .= '&linkprot='.&escape($info{'linkprot'}); $tokentype = 'link'; last; } } else { $tokenextras .= '&'.$name.'='.&escape($env{'form.'.$name}); if (($name eq 'linkkey') || ($name eq 'linkprot')) { $tokentype = 'link'; } } } } if ($tokentype) { $tokenextras .= ":$tokentype"; } my $logtoken=Apache::lonnet::reply( 'tmpput:'.$ukey.$lkey.'&'.&escape($firsturl).$tokenextras, $lonhost); # -- If we cannot talk to ourselves, or hostID does not map to a hostname # we are in serious trouble if (($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 (@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 (($hostname eq '') || ($spareservers{$hostname})); $spareservers{$hostname} = 1; my $protocol = $Apache::lonnet::protocol{$hostid}; $protocol = 'http' if ($protocol ne 'https'); $spares.='<br /><span style="font-size: larger;"><a href="'.$protocol.'://'. $hostname. '/adm/login?domain='.$authdomain.'">'. $hostname.'</a>'. ' '.&mt('(preferred)').'</span>'.$/; } if ($spares) { $spares.= '<br />'; } 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); 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>'; } $r->print( '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' .'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">' .'<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>' .&mt('The LearningOnline Network with CAPA') .'</title></head>' .'<body bgcolor="#FFFFFF">' .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>' .'<img src="/adm/lonKaputt/lonlogo_broken.gif" alt="broken icon" align="right" />' .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'); if ($spares) { $r->print('<p>'.&mt('Please attempt to login to one of the following servers:') .'</p>' .$spares); } $r->print('</body>' .'</html>' ); return OK; } # ----------------------------------------------- Apparently we are in business $servadm=~s/\,/\<br \/\>/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 $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain); my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain); my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain); my $logo=&Apache::loncommon::designparm('login.logo',$domain); my $img=&Apache::loncommon::designparm('login.img',$domain); my $domainlogo=&Apache::loncommon::domainlogo($domain); 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 $showadminmail; my @possdoms = &Apache::lonnet::current_machine_domains(); if (grep(/^\Q$domain\E$/,@possdoms)) { $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain); } my $showcoursecat = &Apache::loncommon::designparm('login.coursecatalog',$domain); my $shownewuserlink = &Apache::loncommon::designparm('login.newuser',$domain); my $showhelpdesk = &Apache::loncommon::designparm('login.helpdesk',$domain); my $now=time; my $js = (<<ENDSCRIPT); <script type="text/javascript" language="JavaScript"> // <![CDATA[ function send() { this.document.server.elements.uname.value =this.document.client.elements.uname.value; this.document.server.elements.udom.value =this.document.client.elements.udom.value; uextkey=this.document.client.elements.uextkey.value; lextkey=this.document.client.elements.lextkey.value; initkeys(); if(this.document.server.action.substr(0,5) === 'http:'){ this.document.server.elements.upass0.value =getCrypted(this.document.client.elements.upass$now.value); } else { this.document.server.elements.upass0.value =this.document.client.elements.upass$now.value; } this.document.client.elements.uname.value=''; this.document.client.elements.upass$now.value=''; this.document.server.submit(); return false; } function enableInput() { this.document.client.elements.upass$now.removeAttribute("readOnly"); this.document.client.elements.uname.removeAttribute("readOnly"); this.document.client.elements.udom.removeAttribute("readOnly"); return; } // ]]> </script> ENDSCRIPT my ($lonhost_in_use,@hosts,%defaultdomconf,$saml_prefix,$saml_landing, $samlssotext,$samlnonsso,$samlssoimg,$samlssoalt,$samlssourl,$samltooltip); %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_'.$lonhost_in_use}; } if ($saml_landing) { if ($samlssotext eq '') { $samlssotext = 'SSO Login'; } if ($samlnonsso eq '') { $samlnonsso = 'Non-SSO Login'; } $js .= <<"ENDSAMLJS"; <script type="text/javascript"> // <![CDATA[ function toggleLClogin() { if (document.getElementById('LC_standard_login')) { if (document.getElementById('LC_standard_login').style.display == 'none') { document.getElementById('LC_standard_login').style.display = 'inline-block'; if (document.getElementById('LC_login_text')) { document.getElementById('LC_login_text').innerHTML = '$samlnonsso'; } if (document.getElementById('LC_SSO_login')) { document.getElementById('LC_SSO_login').style.display = 'none'; } } else { document.getElementById('LC_standard_login').style.display = 'none'; if (document.getElementById('LC_login_text')) { document.getElementById('LC_login_text').innerHTML = '$samlssotext'; } if (document.getElementById('LC_SSO_login')) { document.getElementById('LC_SSO_login').style.display = 'inline-block'; } } } return; } // ]]> </script> ENDSAMLJS } # --------------------------------------------------- Print login screen header my %add_entries = ( bgcolor => "$mainbg", text => "$font", link => "$link", vlink => "$vlink", alink => "$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, { '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/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); $forgotpw .= '<br />' if $forgotpw; my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain); if ($loginhelp) { $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />'; } # ---------------------------------------------------- Serve out DES JavaScript { my $jsh=Apache::File->new($include."/londes.js"); $r->print(<$jsh>); } # ---------------------------------------------------------- Serve rest of page $r->print( '<div class="LC_Box"' .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">' ); $r->print(<<ENDSERVERFORM); <form name="server" action="/adm/authenticate" method="post" target="_top"> <input type="hidden" name="logtoken" value="$logtoken" /> <input type="hidden" name="serverid" value="$lonhost" /> <input type="hidden" name="uname" value="" /> <input type="hidden" name="upass0" value="" /> <input type="hidden" name="udom" value="" /> <input type="hidden" name="localpath" value="$env{'form.localpath'}" /> <input type="hidden" name="localres" value="$env{'form.localres'}" /> </form> ENDSERVERFORM my $coursecatalog; if (($showcoursecat eq '') || ($showcoursecat)) { $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />'; } my $newuserlink; if ($shownewuserlink) { $newuserlink = &newuser_link($lt{'newuser'}).'<br />'; } my $logintitle = '<h2 class="LC_hcell"' .' style="background:'.$loginbox_header_bgcol.';' .' color:'.$loginbox_header_textcol.'">' .$lt{'log'} .'</h2>'; my $noscript_warning='<noscript><span class="LC_warning"><b>' .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.') .'</b></span></noscript>'; my $helpdeskscript; my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail, $authdomain,\$helpdeskscript, $showhelpdesk,\@possdoms); my $mobileargs; if ($clientmobile) { $mobileargs = 'autocapitalize="off" autocorrect="off"'; } my $loginform=(<<LFORM); <form name="client" action="" onsubmit="return(send())" id="lclogin"> <input type="hidden" name="lextkey" value="$lextkey" /> <input type="hidden" name="uextkey" value="$uextkey" /> <b><label for="uname">$lt{'un'}</label>:</b><br /> <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br /> <b><label for="upass$now">$lt{'pw'}</label>:</b><br /> <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br /> <b><label for="udom">$lt{'dom'}</label>:</b><br /> <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br /> <input type="submit" value="$lt{'log'}" /> </form> LFORM if ($showbanner) { my $alttext = &Apache::loncommon::designparm('login.alttext_img',$domain); if ($alttext eq '') { $alttext = 'The Learning Online Network with CAPA'; } $r->print(<<HEADER);  <div style="background:$pgbg;margin:0;width:100%;"> <img src="$img" border="0" alt="$alttext" class="LC_maxwidth" id="lcloginbanner" /> </div> HEADER } my $stdauthformstyle = 'inline-block'; my $ssoauthstyle = 'none'; my $logintype; $r->print('<div style="float:left;margin-top:0;">'); if ($saml_landing) { $ssoauthstyle = 'inline-block'; $stdauthformstyle = 'none'; $logintype = $samlssotext; my $ssologin = '/adm/sso'; if ($samlssourl ne '') { $ssologin = $samlssourl; } if (($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=~/\?/)?'&':'?') . $querystring; } } elsif ($logtoken ne '') { $ssologin .= (($ssologin=~/\?/)?'&':'?') . 'logtoken='.$logtoken; } my $ssohref; if ($samlssoimg ne '') { $ssohref = '<a href="'.$ssologin.'" title="'.$samltooltip.'">'. '<img src="'.$samlssoimg.'" alt="'.$samlssoalt.'" id="lcssobutton" /></a>'; } else { $ssohref = '<a href="'.$ssologin.'">'.$samlssotext.'</a>'; } if (($env{'form.saml'} eq 'no') || (($env{'form.username'} ne '') && ($env{'form.domain'} ne ''))) { $ssoauthstyle = 'none'; $stdauthformstyle = 'inline-block'; $logintype = $samlnonsso; } $r->print(<<ENDSAML); <p> Log-in type: <span style="font-weight:bold" id="LC_login_text">$logintype</span><br /> <span><a href="javascript:toggleLClogin();" style="color:#000000">$lt{'change'}</a></span> </p> <div style="display:$ssoauthstyle" id="LC_SSO_login"> <div class="LC_Box" style="padding-top: 10px;"> $ssohref $noscript_warning </div> <div class="LC_Box" style="padding-top: 10px;"> $loginhelp $contactblock $coursecatalog </div> </div> ENDSAML } else { if ($env{'form.ltoken'}) { &Apache::lonnet::tmpdel($env{'form.ltoken'}); delete($env{'form.ltoken'}); } } $r->print(<<ENDLOGIN); <div style="display:$stdauthformstyle;" id="LC_standard_login"> <div class="LC_Box" style="background:$loginbox_bg;"> $logintitle $loginform $noscript_warning </div> <div class="LC_Box" style="padding-top: 10px;"> $loginhelp $forgotpw $contactblock $newuserlink $coursecatalog </div> </div> ENDLOGIN $r->print('</div><div>'."\n"); if ($showmainlogo) { my $alttext = &Apache::loncommon::designparm('login.alttext_logo',$domain); $r->print(' <img src="'.$logo.'" alt="'.$alttext.'" class="LC_maxwidth" id="lcloginmainlogo" />'."\n"); } $r->print(<<ENDTOP); $announcements </div> <hr style="clear:both;" /> ENDTOP my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow); $domainrow = <<"END"; <tr> <td align="left" valign="top"> <small><b>$lt{'dom'}: </b></small> </td> <td align="left" valign="top"> <small><tt> $domain</tt></small> </td> </tr> END $serverrow = <<"END"; <tr> <td align="left" valign="top"> <small><b>$lt{'serv'}: </b></small> </td> <td align="left" valign="top"> <small><tt> $lonhost ($role)</tt></small> </td> </tr> END if ($loadlim) { $loadrow = <<"END"; <tr> <td align="left" valign="top"> <small><b>$lt{'load'}: </b></small> </td> <td align="left" valign="top"> <small><tt> $loadpercent $lt{'perc'}</tt></small> </td> </tr> END } if ($uloadlim) { $userloadrow = <<"END"; <tr> <td align="left" valign="top"> <small><b>$lt{'userload'}: </b></small> </td> <td align="left" valign="top"> <small><tt> $userloadpercent $lt{'perc'}</tt></small> </td> </tr> END } if (($version ne '') && ($version ne '')) { $versionrow = <<"END"; <tr> <td colspan="2" align="left"> <small>$version</small> </td> </tr> END } $r->print(<<ENDDOCUMENT); <div style="float: left;"> <table border="0" cellspacing="0" cellpadding="0"> $domainrow $serverrow $loadrow $userloadrow $versionrow </table> </div> <div style="float: right;"> $domainlogo </div> <br style="clear:both;" /> </div> <script type="text/javascript"> // <![CDATA[ // the if prevents the script error if the browser can not handle this if ( document.client.uname ) { document.client.uname.focus(); } // ]]> </script> $helpdeskscript ENDDOCUMENT my %endargs = ( 'noredirectlink' => 1, ); $r->print(&Apache::loncommon::end_page(\%endargs)); return OK; } sub check_loginvia { my ($domain,$lonhost,$lonidsdir,$balcookie) = @_; if ($domain eq '' || $lonhost eq '' || $lonidsdir eq '') { return; } my %domconfhash = &Apache::loncommon::get_domainconf($domain); my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost}; my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost}; my $output; if ($loginvia ne '') { my $noredirect; my $ip = &Apache::lonnet::get_requestor_ip(); if ($ip eq '127.0.0.1') { $noredirect = 1; } else { if ($loginvia_exempt ne '') { my @exempt = split(',',$loginvia_exempt); if (grep(/^\Q$ip\E$/,@exempt)) { $noredirect = 1; } } } unless ($noredirect) { my ($newhost,$path); if ($loginvia =~ /:/) { ($newhost,$path) = split(':',$loginvia); } else { $newhost = $loginvia; } if ($newhost ne $lonhost) { if (&Apache::lonnet::hostname($newhost) ne '') { if ($balcookie) { my ($balancer,$cookie) = split(/:/,$balcookie); if ($cookie =~ /^($match_domain)_($match_username)_([a-f0-9]+)$/) { my ($udom,$uname,$cookieid) = ($1,$2,$3); unless (&Apache::lonnet::delbalcookie($cookie,$balancer) eq 'ok') { if ((-d $lonidsdir) && (opendir(my $dh,$lonidsdir))) { while (my $filename=readdir($dh)) { if ($filename=~/^(\Q$uname\E_\d+_\Q$udom\E_$match_lonid)\.id$/) { my $handle = $1; my %hash = &Apache::lonnet::get_sessionfile_vars($handle,$lonidsdir, ['request.balancercookie', 'user.linkedenv']); if ($hash{'request.balancercookie'} eq "$balancer:$cookieid") { if (unlink("$lonidsdir/$filename")) { if (($hash{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) && (-l "$lonidsdir/$hash{'user.linkedenv'}.id") && (readlink("$lonidsdir/$hash{'user.linkedenv'}.id") eq "$lonidsdir/$filename")) { unlink("$lonidsdir/$hash{'user.linkedenv'}.id"); } } } last; } } closedir($dh); } } } } $output = &redirect_page($newhost,$path); } } } } return $output; } sub redirect_page { my ($desthost,$path) = @_; my $hostname = &Apache::lonnet::hostname($desthost); my $protocol = $Apache::lonnet::protocol{$desthost}; $protocol = 'http' if ($protocol ne 'https'); unless ($path =~ m{^/}) { $path = '/'.$path; } my $url = $protocol.'://'.$hostname.$path; if ($env{'form.firsturl'} ne '') { my $querystring; if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) { $querystring = &uri_escape_utf8($env{'form.firsturl'}); } else { $querystring = &uri_escape($env{'form.firsturl'}); } $querystring = &HTML::Entities::encode($querystring,"'"); $url .='?firsturl='.$querystring; } if (($env{'form.ltoken'}) || ($env{'form.linkkey'} ne '')) { my %link_info; if ($env{'form.ltoken'}) { $link_info{'ltoken'} = $env{'form.ltoken'}; } elsif ($env{'form.linkkey'} ne '') { $link_info{'linkkey'} = $env{'form.linkkey'}; } my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link'); unless (($token eq 'con_lost') || ($token eq 'refused') || ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { $url .= (($url=~/\?/)?'&':'?') . 'ttoken='.$token; } } my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef, {'redirect' => [0,$url],}); my $end_page = &Apache::loncommon::end_page(); return $start_page.$end_page; } sub contactdisplay { my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk, $possdoms) = @_; my $contactblock; my $origmail; if (ref($possdoms) eq 'ARRAY') { if (grep(/^\Q$authdomain\E$/,@{$possdoms})) { $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; } } my $requestmail = &Apache::loncommon::build_recipient_list(undef,'helpdeskmail', $authdomain,$origmail); unless ($showhelpdesk eq '0') { if ($requestmail =~ m/[^\@]+\@[^\@]+/) { $showhelpdesk = 1; } else { $showhelpdesk = 0; } } if ($servadm && $showadminmail) { $contactblock .= $$lt{'servadm'}.':<br />'. '<tt>'.$servadm.'</tt><br />'; } if ($showhelpdesk) { $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />'; my $thisurl = &escape('/adm/login'); $$helpdeskscript = <<"ENDSCRIPT"; <script type="text/javascript"> // <![CDATA[ function helpdesk() { var possdom = document.client.udom.value; var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),''); if (codedom == '') { codedom = "$authdomain"; } var querystr = "origurl=$thisurl&codedom="+codedom; document.location.href = "/adm/helpdesk?"+querystr; return; } // ]]> </script> ENDSCRIPT } return $contactblock; } sub forgotpwdisplay { my (%lt) = @_; my $prompt_for_resetpw = 1; if ($prompt_for_resetpw) { return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>'; } return; } sub coursecatalog_link { my ($linkname) = @_; return <<"END"; <a href="/adm/coursecatalog">$linkname</a> END } sub newuser_link { my ($linkname) = @_; return '<a href="/adm/createaccount">'.$linkname.'</a>'; } sub decode_token { my ($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; __END__