--- loncom/auth/lonauth.pm 2010/03/17 17:51:06 1.103 +++ loncom/auth/lonauth.pm 2016/08/11 09:24:13 1.121.2.14 @@ -1,7 +1,7 @@ # The LearningOnline Network # User Authentication Module # -# $Id: lonauth.pm,v 1.103 2010/03/17 17:51:06 raeburn Exp $ +# $Id: lonauth.pm,v 1.121.2.14 2016/08/11 09:24:13 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -40,6 +40,7 @@ use Apache::lonmenu(); use Apache::createaccount; use Fcntl qw(:flock); use Apache::lonlocal; +use Apache::File(); use HTML::Entities; # ------------------------------------------------------------ Successful login @@ -81,9 +82,13 @@ sub success { my $now=time; my $then=$env{'user.login.time'}; my $refresh=$env{'user.refresh.time'}; + my $update=$env{'user.update.time'}; + if (!$update) { + $update = $then; + } if (exists($env{$envkey})) { my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus); - &Apache::lonnet::role_status($envkey,$then,$refresh,$now,\$role,\$where, + &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where, \$trolecode,\$tstatus,\$tstart,\$tend); if ($tstatus eq 'is') { $destination .= ($destination =~ /\?/) ? '&' : '?'; @@ -98,30 +103,38 @@ 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}) { + $destination .= ($destination =~ /\?/) ? '&' : '?'; + $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, + $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'); @@ -130,45 +143,81 @@ sub success { my %lt=&Apache::lonlocal::texthash( 'wel' => 'Welcome', - 'mes' => 'Welcome to the LearningOnline Network with CAPA. Please wait while your session is being set up.', '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'} -$lt{'mes'}

-$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, - {'no_inline_link' => 1,}); - 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) .$end_page ); } @@ -179,18 +228,19 @@ sub reroute { my ($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 $londocroot = $r->dir_config('lonDocRoot'); my $form; # Are we re-routing? - if (-e '/home/httpd/html/lon-status/reroute.txt') { + if (-e "$londocroot/lon-status/reroute.txt") { &reroute($r); return OK; } @@ -213,11 +263,15 @@ sub handler { &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'}; + } $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].' - ,'','','','') + ,'','','','') .'

' .$end_page ); @@ -238,7 +292,7 @@ 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.', @@ -263,7 +317,8 @@ sub handler { my $tmpinfo=Apache::lonnet::reply('tmpget:'.$form{'logtoken'}, $form{'serverid'}); - if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) { + if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost') || + ($tmpinfo eq 'no_such_host')) { &failed($r,'Information needed to verify your login information is missing, inaccessible or expired.',\%form); return OK; } else { @@ -281,60 +336,43 @@ sub handler { return OK; } - my ($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,$form{'upass0'}); # ---------------------------------------------------------------- Authenticate - my @cancreate; + my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$form{'udom'}); - if (ref($domconfig{'usercreation'}) eq 'HASH') { - if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') { - if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') { - @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}}; - } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') && - ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) { - @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}); - } - } - } + my ($cancreate,$statustocreate) = + &Apache::createaccount::get_creation_controls($form{'udom'},$domconfig{'usercreation'}); my $defaultauth; - if (grep(/^login$/,@cancreate)) { - $defaultauth = 1; + if (ref($cancreate) eq 'ARRAY') { + if (grep(/^login$/,@{$cancreate})) { + $defaultauth = 1; + } } + my $clientcancheckhost = 1; my $authhost=Apache::lonnet::authenticate($form{'uname'},$upass, - $form{'udom'},$defaultauth); + $form{'udom'},$defaultauth, + $clientcancheckhost); # --------------------------------------------------------------------- Failed? @@ -343,22 +381,25 @@ sub handler { \%form); return OK; } elsif ($authhost eq 'no_account_on_host') { - my %domconfig = - &Apache::lonnet::get_dom('configuration',['usercreation'],$form{'udom'}); - if (grep(/^login$/,@cancreate)) { + if ($defaultauth) { + my $domdesc = &Apache::lonnet::domain($form{'udom'},'description'); + unless (&check_can_host($r,\%form,'no_account_on_host',$domdesc)) { + return OK; + } my $start_page = &Apache::loncommon::start_page('Create a user account in LON-CAPA', '',{'no_inline_link' => 1,}); - my $domdesc = &Apache::lonnet::domain($form{'udom'},'description'); my $lonhost = $r->dir_config('lonHostID'); my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; my $contacts = &Apache::loncommon::build_recipient_list(undef,'helpdeskmail', $form{'udom'},$origmail); my ($contact_email) = split(',',$contacts); - my $output = &Apache::createaccount::username_check($form{'uname'}, - $form{'udom'},$domdesc,'', - $lonhost,$contact_email,$contact_name); + my $output = + &Apache::createaccount::username_check($form{'uname'},$form{'udom'}, + $domdesc,'',$lonhost, + $contact_email,$contact_name, + undef,$statustocreate); &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; &Apache::createaccount::print_header($r,$start_page); @@ -376,6 +417,17 @@ sub handler { ($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'}) { # ------------ see if the original user has enough privileges to pull this stunt @@ -399,15 +451,188 @@ sub handler { } } - if ($r->dir_config("lonBalancer") eq 'yes') { - &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef, - \%form); - $r->internal_redirect('/adm/switchserver'); + my ($is_balancer,$otherserver); + + unless ($hosthere) { + ($is_balancer,$otherserver) = + &Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'}); + } + + if ($is_balancer) { + if (!$otherserver) { + ($otherserver) = &Apache::lonnet::choose_server($form{'udom'}); + } + if ($otherserver) { + &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef, + \%form); + 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 { + $r->print(&noswitch()); + } + return OK; } else { - &success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,undef, - \%form); + if (!&check_can_host($r,\%form,$authhost)) { + my ($otherserver) = &Apache::lonnet::choose_server($form{'udom'}); + if ($otherserver) { + &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef, + \%form); + 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()); + } + return OK; + } + +# ------------------------------------------------------- Do the load balancing + +# ---------------------------------------------------------- Determine own load + my $loadlim = $r->dir_config('lonLoadLim'); + my $loadavg; + { + my $loadfile=Apache::File->new('/proc/loadavg'); + $loadavg=<$loadfile>; + } + $loadavg =~ s/\s.*//g; + my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim); + my $userloadpercent=&Apache::lonnet::userload(); + +# ---------------------------------------------------------- Are we overloaded? + if ((($userloadpercent>100.0)||($loadpercent>100.0))) { + my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent,1,$form{'udom'}); + if (!$unloaded) { + ($unloaded) = &Apache::lonnet::choose_server($form{'udom'}); + } + if ($unloaded) { + &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect', + undef,\%form); + $r->internal_redirect('/adm/switchserver?otherserver='.$unloaded.'&origurl='.$firsturl); + return OK; + } + } + &success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,undef, + \%form); + return OK; + } +} + +sub check_can_host { + my ($r,$form,$authhost,$domdesc) = @_; + return unless (ref($form) eq 'HASH'); + my $canhost = 1; + my $lonhost = $r->dir_config('lonHostID'); + my $udom = $form->{'udom'}; + my @intdoms; + my $internet_names = &Apache::lonnet::get_internet_names($lonhost); + if (ref($internet_names) eq 'ARRAY') { + @intdoms = @{$internet_names}; + } + my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); + my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id); + unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) { + my $machine_dom = &Apache::lonnet::host_domain($lonhost); + my $hostname = &Apache::lonnet::hostname($lonhost); + my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname); + my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID); + my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom); + my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom); + my $loncaparev; + if ($authhost eq 'no_account_on_host') { + $loncaparev = &Apache::lonnet::get_server_loncaparev($machine_dom); + } else { + $loncaparev = &Apache::lonnet::get_server_loncaparev($machine_dom,$lonhost); + } + $canhost = &Apache::lonnet::can_host_session($udom,$lonhost,$loncaparev, + $udomdefaults{'remotesessions'}, + $defdomdefaults{'hostedsessions'}); + } + unless ($canhost) { + if ($authhost eq 'no_account_on_host') { + my $checkloginvia = 1; + my ($login_host,$hostname) = + &Apache::lonnet::choose_server($udom,$checkloginvia); + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + if ($login_host ne '') { + my $protocol = $Apache::lonnet::protocol{$login_host}; + $protocol = 'http' if ($protocol ne 'https'); + my $newurl = $protocol.'://'.$hostname.'/adm/createaccount'; + $r->print(&Apache::loncommon::start_page('Create a user account in LON-CAPA'). + '

'.&mt('Account creation').'

'. + &mt('You do not currently have a LON-CAPA account at this institution.').'
'. + '

'.&mt('You will be able to create one by logging into a LON-CAPA server within the [_1] domain.',$domdesc).'

'. + '

'.&mt('[_1]Log in[_2]','',''). + &Apache::loncommon::end_page()); + } else { + $r->print(&Apache::loncommon::start_page('Access to LON-CAPA unavailable'). + '

'.&mt('Account creation unavailable').'

'. + &mt('You do not currently have a LON-CAPA account at this institution.').'
'. + '

'.&mt('Currently a LON-CAPA server is not available within the [_1] domain for you to log-in to, to create an account.',$domdesc).'

'. + &Apache::loncommon::end_page()); + } + } else { + &success($r,$form->{'uname'},$udom,$authhost,'noredirect',undef, + $form); + my ($otherserver) = &Apache::lonnet::choose_server($udom); + $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver); + } + } + return $canhost; +} + +sub noswitch { + my $result = &Apache::loncommon::start_page('Access to LON-CAPA unavailable'). + '

'.&mt('Session unavailable').'

'. + &mt('This LON-CAPA server is unable to host your session.').'
'. + '

'.&mt('Currently no other LON-CAPA server is available to host your session either.').'

'. + &Apache::loncommon::end_page(); + 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 OK; + return; } 1;