--- loncom/auth/lonauth.pm 2011/09/29 13:43:22 1.119 +++ loncom/auth/lonauth.pm 2019/08/03 22:45:30 1.121.2.18 @@ -1,7 +1,7 @@ # The LearningOnline Network # User Authentication Module # -# $Id: lonauth.pm,v 1.119 2011/09/29 13:43:22 raeburn Exp $ +# $Id: lonauth.pm,v 1.121.2.18 2019/08/03 22:45:30 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -32,8 +32,6 @@ use strict; use LONCAPA; use Apache::Constants qw(:common); use CGI qw(:standard); -use DynaLoader; # for Crypt::DES version -use Crypt::DES; use Apache::loncommon(); use Apache::lonnet; use Apache::lonmenu(); @@ -42,6 +40,7 @@ use Fcntl qw(:flock); use Apache::lonlocal; use Apache::File(); use HTML::Entities; +use Digest::MD5; # ------------------------------------------------------------ Successful login sub success { @@ -72,8 +71,27 @@ sub success { } } -# ------------------------------------------------------------ Get cookie ready - $cookie="lonID=$cookie; path=/"; +# ------------------------------------------------------------ Get cookies ready + my ($securecookie,$defaultcookie); + my $ssl = $r->subprocess_env('https'); + if ($ssl) { + $securecookie="lonSID=$cookie; path=/; HttpOnly; secure"; + my $lonidsdir=$r->dir_config('lonIDsDir'); + if (($lonidsdir) && (-e "$lonidsdir/$cookie.id")) { + my $linkname=substr(Digest::MD5::md5_hex(Digest::MD5::md5_hex(time(). {}. rand(). $$)), 0, 32).'_linked'; + if (-e "$lonidsdir/$linkname.id") { + unlink("$lonidsdir/$linkname.id"); + } + my $made_symlink = eval { symlink("$lonidsdir/$cookie.id", + "$lonidsdir/$linkname.id"); 1 }; + if ($made_symlink) { + $defaultcookie = "lonLinkID=$linkname; path=/; HttpOnly;"; + &Apache::lonnet::appenv({'user.linkedenv' => $linkname}); + } + } + } else { + $defaultcookie = "lonID=$cookie; path=/; HttpOnly;"; + } # -------------------------------------------------------- Menu script and info my $destination = $lowerurl; @@ -103,16 +121,14 @@ sub success { if ($destsymb =~ /___/) { # FIXME Need to deal with encrypted symbs and urls as needed. my ($map,$resid,$desturl)=split(/___/,$destsymb); - unless ($desturl=~/^(adm|uploaded|editupload|public)/) { - $desturl = &Apache::lonnet::clutter($desturl); - } + $desturl = &Apache::lonnet::clutter($desturl); $desturl = &HTML::Entities::encode($desturl,'"<>&'); $destsymb = &HTML::Entities::encode($destsymb,'"<>&'); - $destination .= '&destinationurl='.$desturl. + $destination .= 'destinationurl='.$desturl. '&destsymb='.$destsymb; } else { $destsymb = &HTML::Entities::encode($destsymb,'"<>&'); - $destination .= '&destinationurl='.$destsymb; + $destination .= 'destinationurl='.$destsymb; } } if ($destination =~ m{^/adm/roles}) { @@ -120,62 +136,111 @@ sub success { $destination .= 'source=login'; } - my $windowinfo = Apache::lonhtmlcommon::scripttag('self.name="loncapaclient";'); - my $header = ''; + my $windowinfo=&Apache::lonmenu::open($env{'browser.os'}); + my $startupremote=&Apache::lonmenu::startupremote($destination); + my $remoteinfo=&Apache::lonmenu::load_remote_msg($lowerurl); + my $setflags=&Apache::lonmenu::setflags(); + my $maincall=&Apache::lonmenu::maincall(); my $brcrum = [{'href' => '', 'text' => 'Successful Login'},]; my $start_page=&Apache::loncommon::start_page('Successful Login', - $header, - {'bread_crumbs' => $brcrum,}); + $startupremote, + {'no_inline_link' => 1, + 'bread_crumbs' => $brcrum,}); my $end_page =&Apache::loncommon::end_page(); - my $continuelink=''.&mt('Continue').''; + my $continuelink; + if ($env{'environment.remote'} eq 'off') { + $continuelink=''.&mt('Continue').''; + } # ------------------------------------------------- Output for successful login &Apache::loncommon::content_type($r,'text/html'); - $r->header_out('Set-cookie' => $cookie); + if ($securecookie) { + $r->headers_out->add('Set-cookie' => $securecookie); + } + if ($defaultcookie) { + $r->headers_out->add('Set-cookie' => $defaultcookie); + } $r->send_http_header; my %lt=&Apache::lonlocal::texthash( 'wel' => 'Welcome', 'pro' => 'Login problems?', - 'log' => 'loginproblems.html', ); + my $loginhelp = &loginhelpdisplay($domain); + if ($loginhelp) { + $loginhelp = '

'.$lt{'pro'}.'

'; + } + my $welcome = &mt('Welcome to the Learning[_1]Online[_2] Network with CAPA. Please wait while your session is being set up.','',''); $r->print(<$lt{'wel'} -$welcome

-$lt{'pro'}

+$welcome +$loginhelp +$remoteinfo +$maincall $continuelink $end_page ENDSUCCESS + return; } # --------------------------------------------------------------- Failed login! sub failed { my ($r,$message,$form) = @_; - my $start_page = &Apache::loncommon::start_page('Unsuccessful Login',undef); - my $retry = '/adm/login?username='.$form->{'uname'}. - '&domain='.$form->{'udom'}; + (undef,undef,undef,my $clientmathml,my $clientunicode) = + &Apache::loncommon::decode_user_agent(); + my $args = {}; + if ($clientunicode && !$clientmathml) { + $args = {'browser.unicode' => 1}; + } + + my $start_page = &Apache::loncommon::start_page('Unsuccessful Login',undef,$args); + my $uname = &Apache::loncommon::cleanup_html($form->{'uname'}); + my $udom = &Apache::loncommon::cleanup_html($form->{'udom'}); + if (&Apache::lonnet::domain($udom,'description') eq '') { + undef($udom); + } + my $retry = '/adm/login'; + if ($uname eq $form->{'uname'}) { + $retry .= '?username='.$uname; + } + if ($udom) { + $retry .= (($retry=~/\?/)?'&':'?').'domain='.$udom; + } if (exists($form->{role})) { - $retry .= '&role='.$form->{role}; + my $role = &Apache::loncommon::cleanup_html($form->{role}); + if ($role ne '') { + $retry .= (($retry=~/\?/)?'&':'?').'role='.$role; + } } if (exists($form->{symb})) { - $retry .= '&symb='.$form->{symb}; + my $symb = &Apache::loncommon::cleanup_html($form->{symb}); + if ($symb ne '') { + $retry .= (($retry=~/\?/)?'&':'?').'symb='.$symb; + } } - my $end_page = &Apache::loncommon::end_page(); + my $end_page = &Apache::loncommon::end_page(); &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; + my @actions = + (&mt('Please [_1]log in again[_2].','','')); + my $loginhelp = &loginhelpdisplay($udom); + if ($loginhelp) { + push(@actions, ''.&mt('Login problems?').''); + } + #FIXME: link to helpdesk might be added here + $r->print( $start_page - .'

'.&mt('Sorry ...').'

' - .'

'.&mt($message).'

' - .'

'.&mt('Please [_1]log in again[_2].','','') - .'

' - .'

'.&mt('Login problems?').'

' + .'

'.&mt('Sorry ...').'

' + .&Apache::lonhtmlcommon::confirm_success(&mt($message),1).'

' + .&Apache::lonhtmlcommon::actionbox(\@actions) .$end_page ); } @@ -186,18 +251,18 @@ sub reroute { my ($r) = @_; &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; - my $msg='

'.&mt('Sorry ...').'

' + my $msg=''.&mt('Sorry ...').'
' .&mt('Please [_1]log in again[_2].'); - &Apache::loncommon::simple_error_page($r,'Rerouting',$msg); + &Apache::loncommon::simple_error_page($r,'Rerouting',$msg,{'no_auto_mt_msg' => 1}); } # ---------------------------------------------------------------- Main handler sub handler { my $r = shift; - my $form; + my $londocroot = $r->dir_config('lonDocRoot'); # Are we re-routing? - if (-e '/home/httpd/html/lon-status/reroute.txt') { + if (-e "$londocroot/lon-status/reroute.txt") { &reroute($r); return OK; } @@ -226,7 +291,7 @@ sub handler { } $r->print( $start_page - .'

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

' + .'

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

' .'

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

' @@ -249,7 +314,7 @@ sub handler { $value =~ tr/+/ /; $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; $form{$name}=$value; - } + } if ((!$form{'uname'}) || (!$form{'upass0'}) || (!$form{'udom'})) { &failed($r,'Username, password and domain need to be specified.', @@ -259,10 +324,11 @@ sub handler { # split user logging in and "su"-user - ($form{'uname'},$form{'suname'})=split(/\:/,$form{'uname'}); + ($form{'uname'},$form{'suname'},$form{'sudom'})=split(/\:/,$form{'uname'}); $form{'uname'} = &LONCAPA::clean_username($form{'uname'}); $form{'suname'}= &LONCAPA::clean_username($form{'suname'}); - $form{'udom'} = &LONCAPA::clean_domain( $form{'udom'}); + $form{'udom'} = &LONCAPA::clean_domain($form{'udom'}); + $form{'sudom'} = &LONCAPA::clean_domain($form{'sudom'}); my $role = $r->dir_config('lonRole'); my $domain = $r->dir_config('lonDefDomain'); @@ -293,40 +359,27 @@ sub handler { return OK; } - my ($key,$firsturl,$rolestr,$symbstr)=split(/&/,$tmpinfo); + my ($key,$firsturl,$rolestr,$symbstr,$iptokenstr)=split(/&/,$tmpinfo); if ($rolestr) { $rolestr = &unescape($rolestr); } if ($symbstr) { $symbstr= &unescape($symbstr); } + if ($iptokenstr) { + $iptokenstr = &unescape($iptokenstr); + } if ($rolestr =~ /^role=/) { (undef,$form{'role'}) = split('=',$rolestr); } if ($symbstr =~ /^symb=/) { (undef,$form{'symb'}) = split('=',$symbstr); } - - my $keybin=pack("H16",$key); - - my $cipher; - if ($Crypt::DES::VERSION>=2.03) { - $cipher=new Crypt::DES $keybin; - } - else { - $cipher=new DES $keybin; + if ($iptokenstr =~ /^iptoken=/) { + (undef,$form{'iptoken'}) = split('=',$iptokenstr); } - my $upass=''; - for (my $i=0;$i<=2;$i++) { - my $chunk= - $cipher->decrypt(unpack("a8",pack("H16",substr($form{'upass'.$i},0,16)))); - $chunk.= - $cipher->decrypt(unpack("a8",pack("H16",substr($form{'upass'.$i},16,16)))); - - $chunk=substr($chunk,1,ord(substr($chunk,0,1))); - $upass.=$chunk; - } + my $upass = &Apache::loncommon::des_decrypt($key,$form{'upass0'}); # ---------------------------------------------------------------- Authenticate @@ -357,7 +410,8 @@ sub handler { return OK; } my $start_page = - &Apache::loncommon::start_page('Create a user account in LON-CAPA'); + &Apache::loncommon::start_page('Create a user account in LON-CAPA', + '',{'no_inline_link' => 1,}); my $lonhost = $r->dir_config('lonHostID'); my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; my $contacts = @@ -386,22 +440,81 @@ sub handler { ($firsturl=~/^\/adm\/(logout|remote)/)) { $firsturl='/adm/roles'; } + + my $hosthere; + if ($form{'iptoken'}) { + my %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'}); + my $delete = &Apache::lonnet::tmpdel($form{'iptoken'}); + if (($sessiondata{'domain'} eq $form{'udom'}) && + ($sessiondata{'username'} eq $form{'uname'})) { + $hosthere = 1; + } + } + # --------------------------------- Are we attempting to login as somebody else? if ($form{'suname'}) { + my ($suname,$sudom,$sudomref); + $suname = $form{'suname'}; + $sudom = $form{'udom'}; + if ($form{'sudom'}) { + unless ($sudom eq $form{'sudom'}) { + if (&Apache::lonnet::domain($form{'sudom'})) { + $sudomref = [$form{'sudom'}]; + $sudom = $form{'sudom'}; + } + } + } # ------------ see if the original user has enough privileges to pull this stunt - if (&Apache::lonnet::privileged($form{'uname'},$form{'udom'})) { + if (&Apache::lonnet::privileged($form{'uname'},$form{'udom'},$sudomref)) { # ---------------------------------------------------- see if the su-user exists - unless (&Apache::lonnet::homeserver($form{'suname'},$form{'udom'}) - eq 'no_host') { - &Apache::lonnet::logthis(&Apache::lonnet::homeserver($form{'suname'},$form{'udom'})); + unless (&Apache::lonnet::homeserver($suname,$sudom) eq 'no_host') { # ------------------------------ see if the su-user is not too highly privileged - unless (&Apache::lonnet::privileged($form{'suname'},$form{'udom'})) { + if (&Apache::lonnet::privileged($suname,$sudom)) { + &Apache::lonnet::logthis('Attempted switch user to privileged user'); + } else { + my $noprivswitch; +# +# su-user's home server and user's home server must have one of: +# (a) same domain +# (b) same primary library server for the two domains +# (c) same "internet domain" for primary library server(s) for home servers' domains +# + my $suprim = &Apache::lonnet::domain($sudom,'primary'); + my $suintdom = &Apache::lonnet::internet_dom($suprim); + unless ($sudom eq $form{'udom'}) { + my $uprim = &Apache::lonnet::domain($form{'udom'},'primary'); + my $uintdom = &Apache::lonnet::internet_dom($uprim); + unless ($suprim eq $uprim) { + unless ($suintdom eq $uintdom) { + &Apache::lonnet::logthis('Attempted switch user ' + .'to user with different "internet domain".'); + $noprivswitch = 1; + } + } + } + + unless ($noprivswitch) { +# +# server where log-in occurs must have same "internet domain" as su-user's home +# server +# + my $lonhost = $r->dir_config('lonHostID'); + my $hostintdom = &Apache::lonnet::internet_dom($lonhost); + if ($hostintdom ne $suintdom) { + &Apache::lonnet::logthis('Attempted switch user on a ' + .'server with a different "internet domain".'); + } else { + # -------------------------------------------------------- actually switch users - &Apache::lonnet::logperm('User '.$form{'uname'}.' at '.$form{'udom'}. - ' logging in as '.$form{'suname'}); - $form{'uname'}=$form{'suname'}; - } else { - &Apache::lonnet::logthis('Attempted switch user to privileged user'); + + &Apache::lonnet::logperm('User '.$form{'uname'}.' at '. + $form{'udom'}.' logging in as '.$suname.':'.$sudom); + $form{'uname'}=$suname; + if ($form{'udom'} ne $sudom) { + $form{'udom'}=$sudom; + } + } + } } } } else { @@ -409,17 +522,43 @@ sub handler { } } - my ($is_balancer,$otherserver) = - &Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'}); + my ($is_balancer,$otherserver); - if ($is_balancer) { - if (!$otherserver) { - ($otherserver) = &Apache::lonnet::choose_server($form{'udom'}); + unless ($hosthere) { + ($is_balancer,$otherserver) = + &Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'},'login'); + if ($is_balancer) { + if ($otherserver eq '') { + my $lowest_load; + ($otherserver,undef,undef,undef,$lowest_load) = &Apache::lonnet::choose_server($form{'udom'}); + if ($lowest_load > 100) { + $otherserver = &Apache::lonnet::spareserver($lowest_load,$lowest_load,1,$form{'udom'}); + } + } + if ($otherserver ne '') { + my @hosts = &Apache::lonnet::current_machine_ids(); + if (grep(/^\Q$otherserver\E$/,@hosts)) { + $hosthere = $otherserver; + } + } } + } + + if (($is_balancer) && (!$hosthere)) { if ($otherserver) { &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef, \%form); - $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl); + my $switchto = '/adm/switchserver?otherserver='.$otherserver; + if (($firsturl) && ($firsturl ne '/adm/switchserver') && ($firsturl ne '/adm/roles')) { + $switchto .= '&origurl='.$firsturl; + } + if ($form{'role'}) { + $switchto .= '&role='.$form{'role'}; + } + if ($form{'symb'}) { + $switchto .= '&symb='.$form{'symb'}; + } + $r->internal_redirect($switchto); } else { $r->print(&noswitch()); } @@ -430,7 +569,17 @@ sub handler { if ($otherserver) { &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef, \%form); - $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl); + my $switchto = '/adm/switchserver?otherserver='.$otherserver; + if (($firsturl) && ($firsturl ne '/adm/switchserver') && ($firsturl ne '/adm/roles')) { + $switchto .= '&origurl='.$firsturl; + } + if ($form{'role'}) { + $switchto .= '&role='.$form{'role'}; + } + if ($form{'symb'}) { + $switchto .= '&symb='.$form{'symb'}; + } + $r->internal_redirect($switchto); } else { $r->print(&noswitch()); } @@ -463,6 +612,9 @@ sub handler { return OK; } } + if (($is_balancer) && ($hosthere)) { + $form{'noloadbalance'} = $hosthere; + } &success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,undef, \%form); return OK; @@ -542,6 +694,33 @@ sub noswitch { return $result; } +sub loginhelpdisplay { + my ($authdomain) = @_; + my $login_help = 1; + my $lang = &Apache::lonlocal::current_language(); + if ($login_help) { + my $dom = $authdomain; + if ($dom eq '') { + $dom = &Apache::lonnet::default_login_domain(); + } + my %domconfhash = &Apache::loncommon::get_domainconf($dom); + my $loginhelp_url; + if ($lang) { + $loginhelp_url = $domconfhash{$dom.'.login.helpurl_'.$lang}; + if ($loginhelp_url ne '') { + return $loginhelp_url; + } + } + $loginhelp_url = $domconfhash{$dom.'.login.helpurl_nolang'}; + if ($loginhelp_url ne '') { + return $loginhelp_url; + } else { + return '/adm/loginproblems.html'; + } + } + return; +} + 1; __END__