--- loncom/auth/lonauth.pm 2015/03/06 21:56:41 1.138 +++ loncom/auth/lonauth.pm 2020/03/15 23:04:10 1.159 @@ -1,7 +1,7 @@ # The LearningOnline Network # User Authentication Module # -# $Id: lonauth.pm,v 1.138 2015/03/06 21:56:41 raeburn Exp $ +# $Id: lonauth.pm,v 1.159 2020/03/15 23:04:10 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -29,24 +29,24 @@ package Apache::lonauth; use strict; -use LONCAPA; +use LONCAPA qw(:DEFAULT :match); 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(); use Apache::createaccount; +use Apache::ltiauth; use Fcntl qw(:flock); use Apache::lonlocal; use Apache::File(); use HTML::Entities; +use Digest::MD5; # ------------------------------------------------------------ Successful login sub success { my ($r, $username, $domain, $authhost, $lowerurl, $extra_env, - $form) = @_; + $form,$skipcritical,$cid) = @_; # ------------------------------------------------------------ Get cookie ready my $cookie = @@ -65,18 +65,67 @@ sub success { # ------------------------------------------------- Check for critical messages - my @what=&Apache::lonnet::dump('critical',$domain,$username); - if ($what[0]) { - if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) { - $lowerurl='/adm/email?critical=display'; + unless ($skipcritical) { + my @what=&Apache::lonnet::dump('critical',$domain,$username); + if ($what[0]) { + if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) { + $lowerurl='/adm/email?critical=display'; + } } } -# ------------------------------------------------------------ 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 = $lowerurl; - + if ($env{'request.lti.login'}) { + if (($env{'request.lti.reqcrs'}) && ($env{'request.lti.reqrole'} eq 'cc')) { + &Apache::loncommon::content_type($r,'text/html'); + if ($securecookie) { + $r->headers_out->add('Set-cookie' => $securecookie); + } + if ($defaultcookie) { + $r->headers_out->add('Set-cookie' => $defaultcookie); + } + $r->send_http_header; + if (ref($form) eq 'HASH') { + $form->{'lti.login'} = $env{'request.lti.login'}; + $form->{'lti.reqcrs'} = $env{'request.lti.reqcrs'}; + $form->{'lti.reqrole'} = $env{'request.lti.reqrole'}; + $form->{'lti.sourcecrs'} = $env{'request.lti.sourcecrs'}; + } + &Apache::ltiauth::lti_reqcrs($r,$domain,$form,$username,$domain); + return; + } + if ($env{'request.lti.selfenrollrole'}) { + if (&Apache::ltiauth::lti_enroll($username,$domain, + $env{'request.lti.selfenrollrole'}) eq 'ok') { + $form->{'role'} = $env{'request.lti.selfenrollrole'}; + &Apache::lonnet::delenv('request.lti.selfenrollrole'); + } else { + &Apache::ltiauth::invalid_request($r,24); + } + } + } if (defined($form->{role})) { my $envkey = 'user.role.'.$form->{role}; my $now=time; @@ -99,16 +148,26 @@ sub success { } if (defined($form->{symb})) { my $destsymb = $form->{symb}; + my $encrypted; + if ($destsymb =~ m{^/enc/}) { + $encrypted = 1; + if ($cid) { + $destsymb = &Apache::lonenc::unencrypted($destsymb,$cid); + } + } $destination .= ($destination =~ /\?/) ? '&' : '?'; if ($destsymb =~ /___/) { - # FIXME Need to deal with encrypted symbs and urls as needed. my ($map,$resid,$desturl)=split(/___/,$destsymb); $desturl = &Apache::lonnet::clutter($desturl); + if ($encrypted) { + $desturl = &Apache::lonenc::encrypted($desturl,1,$cid); + $destsymb = $form->{symb}; + } $desturl = &HTML::Entities::encode($desturl,'"<>&'); $destsymb = &HTML::Entities::encode($destsymb,'"<>&'); $destination .= 'destinationurl='.$desturl. '&destsymb='.$destsymb; - } else { + } elsif (!$encrypted) { $destsymb = &HTML::Entities::encode($destsymb,'"<>&'); $destination .= 'destinationurl='.$destsymb; } @@ -118,39 +177,97 @@ sub success { $destination .= 'source=login'; } - my $windowinfo = Apache::lonhtmlcommon::scripttag('self.name="loncapaclient";'); - my $header = ''; + my $windowname = 'loncapaclient'; + if ($env{'request.lti.login'}) { + $windowname .= 'lti'; + } + my $windowinfo = Apache::lonhtmlcommon::scripttag('self.name="'.$windowname.'";'); my $brcrum = [{'href' => '', 'text' => 'Successful Login'},]; - my $start_page=&Apache::loncommon::start_page('Successful Login', - $header, - {'bread_crumbs' => $brcrum,}); - my $end_page =&Apache::loncommon::end_page(); + my $args = {'bread_crumbs' => $brcrum,}; + unless ((defined($form->{role})) || (defined($form->{symb}))) { + my $update=$env{'user.update.time'}; + if (!$update) { + $update = $env{'user.login.time'}; + } + my %roles_in_env; + my $showcount = &Apache::lonroles::roles_from_env(\%roles_in_env,$update); + if ($showcount == 1) { + foreach my $rolecode (keys(%roles_in_env)) { + my ($cid) = ($rolecode =~ m{^\Quser.role.st./\E($match_domain/$match_courseid)(?:/|$)}); + if ($cid) { + my %coursedescription = + &Apache::lonnet::coursedescription($cid,{'one_time' => '1'}); + if ($coursedescription{'type'} eq 'Placement') { + $args->{'crstype'} = 'Placement'; + } + last; + } + } + } + } - my $continuelink=''.&mt('Continue').''; # ------------------------------------------------- Output for successful login &Apache::loncommon::content_type($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?', - ); - my $loginhelp = &loginhelpdisplay($domain); - if ($loginhelp) { - $loginhelp = '

'.$lt{'pro'}.'

'; + my ($start_page,$js,$pagebody,$end_page); + if ($env{'request.lti.login'}) { + $args = {'only_body' => 1}; + if ($env{'request.lti.target'} eq '') { + my $ltitarget = (($destination =~ /\?/) ? '&' : '?'). + 'ltitarget=iframe'; + $js = <<"ENDJS"; + + - my $welcome = &mt('Welcome to the Learning[_1]Online[_2] Network with CAPA. Please wait while your session is being set up.','',''); +ENDJS + $args->{'add_entries'} = {'onload' => "javascript:setLTItarget();"}; + $pagebody = ''; + } else { + $args->{'redirect'} = [0,$destination,1]; + } + $start_page=&Apache::loncommon::start_page('',$js,$args); + } else { + $args->{'redirect'} = [0,$destination]; + $start_page=&Apache::loncommon::start_page('Successful Login', + $js,$args); + + my %lt=&Apache::lonlocal::texthash( + 'wel' => 'Welcome', + 'pro' => 'Login problems?', + ); + $pagebody = "

$lt{'wel'}

\n". + &mt('Welcome to the Learning[_1]Online[_2] Network with CAPA. Please wait while your session is being set up.','',''); + my $loginhelp = &loginhelpdisplay($domain); + if ($loginhelp) { + $pagebody .= '

'.$lt{'pro'}.'

'; + } + } + $end_page = &Apache::loncommon::end_page(); $r->print(<$lt{'wel'} -$welcome -$loginhelp -$continuelink +$pagebody $end_page ENDSUCCESS return; @@ -192,6 +309,26 @@ sub failed { $retry .= (($retry=~/\?/)?'&':'?').'symb='.$symb; } } + if (exists($form->{firsturl})) { + my $firsturl = &Apache::loncommon::cleanup_html($form->{firsturl}); + if ($firsturl ne '') { + $retry .= (($retry=~/\?/)?'&':'?').'firsturl='.$firsturl; + if ($firsturl =~ m{^/tiny/$match_domain/\w+$}) { + unless (exists($form->{linkprot})) { + if (exists($form->{linkkey})) { + $retry .= 'linkkey='.$form->{linkkey}; + } + } + } + } + } + if (exists($form->{linkprot})) { + my $ltoken = &Apache::lonnet::tmpput({linkprot => $form->{'linkprot'}}, + $r->dir_config('lonHostID')); + if ($ltoken) { + $retry .= (($retry =~ /\?/) ? '&' : '?').'ltoken='.$ltoken; + } + } my $end_page = &Apache::loncommon::end_page(); &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; @@ -228,7 +365,6 @@ sub reroute { sub handler { my $r = shift; my $londocroot = $r->dir_config('lonDocRoot'); - my $form; # Are we re-routing? if (-e "$londocroot/lon-status/reroute.txt") { &reroute($r); @@ -256,6 +392,9 @@ sub handler { my $dest = '/adm/roles'; if ($env{'form.firsturl'} ne '') { $dest = $env{'form.firsturl'}; + if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { + &Apache::lonnet::appenv({'request.deeplink.login' => $env{'form.firsturl'}}); + } } $r->print( $start_page @@ -292,10 +431,11 @@ sub handler { # split user logging in and "su"-user - ($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 = $r->dir_config('lonDefDomain'); @@ -326,7 +466,7 @@ sub handler { return OK; } - my ($key,$firsturl,$rolestr,$symbstr,$iptokenstr)=split(/&/,$tmpinfo); + my ($key,$firsturl,$rolestr,$symbstr,$iptokenstr,$linkstr)=split(/&/,$tmpinfo); if ($rolestr) { $rolestr = &unescape($rolestr); } @@ -336,6 +476,12 @@ sub handler { if ($iptokenstr) { $iptokenstr = &unescape($iptokenstr); } + if ($linkstr) { + $linkstr = &unescape($linkstr); + } + if ($firsturl =~ m{^/tiny/$match_domain/\w+$}) { + $form{'firsturl'} = $firsturl; + } if ($rolestr =~ /^role=/) { (undef,$form{'role'}) = split('=',$rolestr); } @@ -345,9 +491,14 @@ sub handler { if ($iptokenstr =~ /^iptoken=/) { (undef,$form{'iptoken'}) = split('=',$iptokenstr); } + if ($linkstr =~ /^linkprot=/) { + (undef,$form{'linkprot'}) = split('=',$linkstr); + } elsif ($linkstr =~ /^linkkey=/) { + (undef,$form{'linkkey'}) = split('=',$linkstr); + } - my $upass = $ENV{HTTPS} ? join("", @form{qw(upass0 upass1 upass2)}) - : decrypt($key, @form{qw(upass0 upass1 upass2)}); + my $upass = $ENV{HTTPS} ? $form{'upass0'} + : &Apache::loncommon::des_decrypt($key,$form{'upass0'}); # ---------------------------------------------------------------- Authenticate @@ -364,7 +515,7 @@ sub handler { my $authhost=Apache::lonnet::authenticate($form{'uname'},$upass, $form{'udom'},$defaultauth, $clientcancheckhost); - + # --------------------------------------------------------------------- Failed? if ($authhost eq 'no_host') { @@ -420,20 +571,68 @@ sub handler { # --------------------------------- 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 { @@ -445,19 +644,31 @@ sub handler { unless ($hosthere) { ($is_balancer,$otherserver) = - &Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'}); + &Apache::lonnet::check_loadbalancing($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) { - if (!$otherserver) { - ($otherserver) = &Apache::lonnet::choose_server($form{'udom'}); - } + if (($is_balancer) && (!$hosthere)) { if ($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; + $switchto .= '&origurl='.$firsturl; #should escape } if ($form{'role'}) { $switchto .= '&role='.$form{'role'}; @@ -465,6 +676,14 @@ sub handler { if ($form{'symb'}) { $switchto .= '&symb='.$form{'symb'}; } + if ($form{'linkprot'}) { + $env{'request.linkprot'} = $form{'linkprot'}; + } elsif ($form{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { + if ($form{'linkkey'}) { + $env{'request.linkkey'} = $form{'linkkey'}; + } + $env{'request.deeplink.login'} = $form{'firsturl'}; + } $r->internal_redirect($switchto); } else { $r->print(&noswitch()); @@ -478,7 +697,7 @@ sub handler { \%form); my $switchto = '/adm/switchserver?otherserver='.$otherserver; if (($firsturl) && ($firsturl ne '/adm/switchserver') && ($firsturl ne '/adm/roles')) { - $switchto .= '&origurl='.$firsturl; + $switchto .= '&origurl='.$firsturl; #should escape } if ($form{'role'}) { $switchto .= '&role='.$form{'role'}; @@ -486,6 +705,15 @@ sub handler { if ($form{'symb'}) { $switchto .= '&symb='.$form{'symb'}; } + if ($form{'linkprot'}) { + $env{'request.linkprot'} = $form{'linkprot'}; + } elsif ($form{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { + if ($form{'linkkey'}) { + $env{'request.linkkey'} = $form{'linkkey'}; + } + $env{'request.deeplink.login'} = $form{'firsturl'}; + + } $r->internal_redirect($switchto); } else { $r->print(&noswitch()); @@ -515,44 +743,43 @@ sub handler { if ($unloaded) { &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect', undef,\%form); + if ($form{'linkprot'}) { + $env{'request.linkprot'} = $form{'linkprot'}; + } elsif ($form{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { + if ($form{'linkkey'}) { + $env{'request.linkkey'} = $form{'linkkey'}; + } + $env{'request.deeplink.login'} = $form{'firsturl'}; + } $r->internal_redirect('/adm/switchserver?otherserver='.$unloaded.'&origurl='.$firsturl); return OK; } } - &success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,undef, + if (($is_balancer) && ($hosthere)) { + $form{'noloadbalance'} = $hosthere; + } + my $extra_env; + if ($form{'linkprot'}) { + my ($linkprotector,$uri) = split(/:/,$form{'linkprot'},2); + if ($linkprotector) { + $extra_env = {'user.linkprotector' => $linkprotector, + 'user.linkproturi' => $uri,}; + } + } elsif ($form{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { + if ($form{'linkkey'}) { + $extra_env = {'user.deeplinkkey' => $form{'linkkey'}, + 'user.keyedlinkuri' => $form{'firsturl'}, + 'request.deeplink.login' => $form{'firsturl'}}; + } else { + $extra_env = {'request.deeplink.login' => $form{'firsturl'}}; + } + } + &success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,$extra_env, \%form); return OK; } } -sub decrypt { - my ($key, @chunks) = @_; - - my $keybin = pack("H16",$key); - - my $cipher; - if ($Crypt::DES::VERSION >= 2.03) { - $cipher = new Crypt::DES $keybin; - } else { - $cipher = new DES $keybin; - } - - my $upass=''; - for (my $i=0;$i<=2;$i++) { - my $chunk = - $cipher->decrypt( - unpack("a8",pack("H16",substr($chunks[$i],0,16)))); - - $chunk .= - $cipher->decrypt( - unpack("a8",pack("H16",substr($chunks[$i],16,16)))); - - $chunk = substr($chunk,1,ord(substr($chunk,0,1))); - $upass .= $chunk; - } - return $upass; -} - sub check_can_host { my ($r,$form,$authhost,$domdesc) = @_; return unless (ref($form) eq 'HASH'); @@ -594,6 +821,7 @@ sub check_can_host { my $protocol = $Apache::lonnet::protocol{$login_host}; $protocol = 'http' if ($protocol ne 'https'); my $newurl = $protocol.'://'.$hostname.'/adm/createaccount'; +#FIXME Should preserve where user was going and linkprot by setting ltoken at $login_host $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.').'
'. @@ -610,6 +838,14 @@ sub check_can_host { } else { &success($r,$form->{'uname'},$udom,$authhost,'noredirect',undef, $form); + if ($form->{'linkprot'}) { + $env{'request.linkprot'} = $form->{'linkprot'}; + } elsif ($form->{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) { + if ($form->{'linkkey'}) { + $env{'request.linkkey'} = $form->{'linkkey'}; + } + $env{'request.deeplink.login'} = $form->{'firsturl'}; + } my ($otherserver) = &Apache::lonnet::choose_server($udom); $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver); }