version 1.3, 2005/10/25 19:14:32
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version 1.46, 2018/12/08 15:16:03
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Line 31 package Apache::switchserver;
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Line 31 package Apache::switchserver;
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use strict; |
use strict; |
use Apache::Constants qw(:common); |
use Apache::Constants qw(:common); |
use Apache::lonnet; |
use Apache::lonnet; |
use Apache::lonmenu; |
use Digest::MD5 qw(md5_hex); |
use CGI::Cookie(); |
use CGI::Cookie(); |
use Apache::lonlocal; |
use Apache::lonlocal; |
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use LONCAPA qw(:DEFAULT :match); |
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sub init_env { |
sub init_env { |
my ($r) = @_; |
my ($r) = @_; |
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if (-e $env{'user.environment'}) { |
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return $env{'user.environment'}; |
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} |
my $requrl=$r->uri; |
my $requrl=$r->uri; |
my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); |
my $handle= &Apache::lonnet::check_for_valid_session($r); |
my $lonid=$cookies{'lonID'}; |
if ($handle ne '') { |
my $cookie; |
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if (!$lonid) { return undef; } |
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my $handle=$lonid->value; |
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$handle=~s/\W//g; |
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my $lonidsdir=$r->dir_config('lonIDsDir'); |
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if ((!-e "$lonidsdir/$handle.id") || ($handle eq '')) { |
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$r->log_reason("Cookie $handle not valid", $r->filename); |
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return undef; |
return undef; |
} |
} |
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my $lonidsdir=$r->dir_config('lonIDsDir'); |
&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); |
&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); |
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return $handle; |
return $r->dir_config('lonIDsDir')."/$handle.id"; |
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} |
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sub do_redirect { |
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my ($r,$url,$only_body,$extra_text) = @_; |
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$r->send_http_header; |
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my $start_page = |
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&Apache::loncommon::start_page('Switching Server ...',undef, |
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{'redirect' => [0.5,$url], |
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'only_body' => $only_body,}); |
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my $end_page = &Apache::loncommon::end_page(); |
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$r->print($start_page.$extra_text.$end_page); |
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unless ($env{'user.name'} eq 'public' && ($env{'user.domain'} eq 'public')) { |
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$r->register_cleanup(\&flush_course_logs); |
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} |
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return OK; |
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} |
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sub balancer_cookieid { |
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my ($r,$desthost,$uname,$udom) = @_; |
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my @hosts = &Apache::lonnet::current_machine_ids(); |
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my $newcookieid; |
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unless (grep(/^\Q$desthost\E$/,@hosts)) { |
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my $balancedir=$r->dir_config('lonBalanceDir'); |
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$newcookieid = &md5_hex(&md5_hex(time.{}.rand().$$)); |
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my $cookie = $udom.'_'.$uname.'_'.$newcookieid; |
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my $balcookie = "balanceID=$cookie; path=/; HttpOnly;"; |
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if (open(my $fh,'>',"$balancedir/$cookie.id")) { |
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print $fh $desthost; |
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close($fh); |
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$r->headers_out->add('Set-cookie' => $balcookie); |
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} |
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} |
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return $newcookieid; |
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} |
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sub flush_course_logs { |
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&Apache::lonnet::flushcourselogs(); |
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return OK; |
} |
} |
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sub handler { |
sub handler { |
my $r = shift; |
my ($r) = @_; |
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my $handle=&init_env($r); |
my $handle=&init_env($r); |
if (!defined($handle)) { return FORBIDDEN; } |
if (!defined($handle)) { return FORBIDDEN; } |
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&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
['otherserver','role']); |
['otherserver','role','origurl','symb']); |
my $switch_to=$Apache::lonnet::hostname{$env{'form.otherserver'}}; |
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my $switch_to=&Apache::lonnet::hostname($env{'form.otherserver'}); |
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if (! $env{'form.otherserver'}) { |
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$env{'form.otherserver'} = |
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&Apache::lonnet::find_existing_session($env{'user.domain'}, |
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$env{'user.name'}); |
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if (! $env{'form.otherserver'}) { |
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$env{'form.otherserver'} = |
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&Apache::lonnet::spareserver(30000,undef,1); |
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} |
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$switch_to=&Apache::lonnet::hostname($env{'form.otherserver'}); |
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} |
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if (!defined($switch_to)) { return FORBIDDEN; } |
if (!defined($switch_to)) { return FORBIDDEN; } |
if (!exists($env{'user.role.'.$env{'form.role'}})) { return FORBIDDEN; } |
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my $protocol = 'http'; |
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if ($env{'form.otherserver'}) { |
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if ($Apache::lonnet::protocol{$env{'form.otherserver'}} eq 'https') { |
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$protocol = $Apache::lonnet::protocol{$env{'form.otherserver'}}; |
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} |
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} |
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if ($env{'user.name'} eq 'public' |
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&& $env{'user.domain'} eq 'public') { |
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my $url = $protocol.'://'.$switch_to.$r->uri; |
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unlink($handle); |
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#expire the cookie |
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my $c = new CGI::Cookie(-name => 'lonPubID', |
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-value => '', |
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-expires => '-10y',); |
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$r->header_out('Set-cookie' => $c); |
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return &do_redirect($r,$url,1) |
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} |
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my $skip_canhost_check = ''; |
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my $now = time; |
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if ($env{'form.role'}) { |
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if (!exists($env{'user.role.'.$env{'form.role'}})) { |
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delete($env{'form.role'}); |
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} else { |
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my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.role'}}); |
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if (($start && $start > $now) || ($end && $end < $now)) { |
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delete($env{'form.role'}); |
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} elsif ($env{'form.role'} eq 'au./'.$env{'user.domain'}.'/') { |
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if (&Apache::lonnet::homeserver($env{'user.name'},$env{'user.domain'}) eq $env{'form.otherserver'}) { |
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$skip_canhost_check = 1; |
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} |
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} elsif ($env{'form.role'} =~ m{^[ac]a\./($match_domain)/($match_username)$}) { |
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my ($audom,$auname) = ($1,$2); |
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if (&Apache::lonnet::homeserver($auname,$audom) eq $env{'form.otherserver'}) { |
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if ((&Apache::lonnet::will_trust('othcoau',$env{'user.domain'},$audom)) && |
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(&Apache::lonnet::will_trust('coaurem',$audom,$env{'user.domain'}))) { |
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$skip_canhost_check = 1; |
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} |
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} |
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} |
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} |
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} |
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unless ($skip_canhost_check) { |
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my $canhost = 1; |
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my $uprimary_id = &Apache::lonnet::domain($env{'user.domain'},'primary'); |
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my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id); |
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my @intdoms; |
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my $internet_names = &Apache::lonnet::get_internet_names($env{'form.otherserver'}); |
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if (ref($internet_names) eq 'ARRAY') { |
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@intdoms = @{$internet_names}; |
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} |
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unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) { |
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my $serverhomeID = &Apache::lonnet::get_server_homeID($switch_to); |
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my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID); |
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my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom); |
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my %udomdefaults = &Apache::lonnet::get_domain_defaults($env{'user.domain'}); |
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my $remoterev = &Apache::lonnet::get_server_loncaparev($env{'user.domain'},$env{'form.otherserver'}); |
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$canhost = |
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&Apache::lonnet::can_host_session($env{'user.domain'}, |
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$env{'form.otherserver'}, |
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$remoterev, |
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$udomdefaults{'remotesessions'}, |
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$defdomdefaults{'hostedsessions'}); |
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} |
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unless ($canhost) { return FORBIDDEN; } |
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} |
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#remove session env, and log event |
#remove session env, and log event |
unlink($r->dir_config('lonIDsDir')."/$handle.id"); |
if (unlink($handle)) { |
my %temp=('switchserver' => time.':'.$env{'form.otherserver'}, |
if ($env{'user.linkedenv'} ne '') { |
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my $lonidsdir=$r->dir_config('lonIDsDir'); |
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if (($env{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) && |
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(-l "$lonidsdir/$env{'user.linkedenv'}.id") && |
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(readlink("$lonidsdir/$env{'user.linkedenv'}.id") eq $handle)) { |
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unlink("$lonidsdir/$env{'user.linkedenv'}.id"); |
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} |
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} |
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} |
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my %temp=('switchserver' => $now.':'.$env{'form.otherserver'}, |
$env{'form.role'}); |
$env{'form.role'}); |
&Apache::lonnet::put('email_status',\%temp); |
&Apache::lonnet::put('email_status',\%temp); |
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my $logmsg = "Switch Server to $env{'form.otherserver'}"; |
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if ($env{'form.role'}) { |
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$logmsg .= " with role: $env{'form.role'}"; |
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} elsif (($env{'form.lti.reqcrs'}) && ($env{'form.lti.reqrole'} eq 'cc')) { |
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$logmsg .= " to create new LTI course"; |
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} elsif ($env{'form.lti.selfenrollrole'}) { |
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$logmsg .= " to selfenroll with role: $env{'form.lti.selfenrollrole'}"; |
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} else { |
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$logmsg .= " (no role)"; |
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} |
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$logmsg .= ' '.$ENV{'REMOTE_ADDR'}; |
&Apache::lonnet::log($env{'user.domain'},$env{'user.name'}, |
&Apache::lonnet::log($env{'user.domain'},$env{'user.name'}, |
$env{'user.home'}, |
$env{'user.home'},$logmsg); |
"Switch Server to $env{'form.otherserver'} with role $env{'form.role'} $ENV{'REMOTE_ADDR'}"); |
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&Apache::loncommon::content_type($r,'text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
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return OK if $r->header_only; |
#expire the cookies |
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my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); |
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foreach my $name (keys(%cookies)) { |
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next unless ($name =~ /^lon(|S|Link|Pub)ID$/); |
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my $c = new CGI::Cookie(-name => $name, |
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-value => '', |
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-expires => '-10y',); |
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$r->headers_out->add('Set-cookie' => $c); |
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} |
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if ($r->header_only) { |
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$r->send_http_header; |
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return OK; |
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} |
# -------------------------------------------------------- Menu script and info |
# -------------------------------------------------------- Menu script and info |
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my $windowinfo=&Apache::lonmenu::close(); |
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$windowinfo.=&Apache::lonnavmaps::close(); |
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# ---------------------------------------------------------------- Get handover |
# ---------------------------------------------------------------- Get handover |
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my %info=('ip' => $ENV{'REMOTE_ADDR'}, |
my $newcookieid; |
'domain' => $env{'user.domain'}, |
my ($is_balancer,$posshost,$setcookie,$offloadto,$dom_balancers) = |
'username' => $env{'user.name'}, |
&Apache::lonnet::check_loadbalancing($env{'user.name'},$env{'user.domain'}); |
'role' => $env{'form.role'}, |
if ($is_balancer && $setcookie && $env{'form.otherserver'}) { |
'server' => $r->dir_config('lonHostID')); |
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# Set a balancer cookie unless browser already sent LON-CAPA load balancer |
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# cookie which points at the target server |
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my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r,1); |
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unless (($found_server eq $env{'form.otherserver'}) && |
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($balancer_cookie =~ /^\Q$env{'user.domain'}\E_\Q$env{'user.name'}\E_/)) { |
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$newcookieid = &balancer_cookieid($r,$env{'form.otherserver'}, |
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$env{'user.name'},$env{'user.domain'}); |
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} |
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} |
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my %info=('ip' => $ENV{'REMOTE_ADDR'}, |
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'domain' => $env{'user.domain'}, |
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'username' => $env{'user.name'}, |
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'home' => $env{'user.home'}, |
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'role' => $env{'form.role'}, |
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'server' => $r->dir_config('lonHostID'), |
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'balancer' => $is_balancer, |
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'dom_balancers' => $dom_balancers, |
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'offloadto' => ''); |
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if (ref($offloadto) eq 'HASH') { |
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foreach my $key (keys(%{$offloadto})) { |
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if (ref($offloadto->{$key}) eq 'ARRAY') { |
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$info{'offloadto'} .= $key.'='.join(',',@{$offloadto->{$key}}).'&'; |
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} |
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} |
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$info{'offloadto'} =~ s/\&$//; |
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} elsif (ref($offloadto) eq 'ARRAY') { |
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$info{'offloadto'} = join(',',@{$offloadto}); |
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} |
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if ($newcookieid) { |
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$info{'balcookie'} = $newcookieid; |
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} |
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if ($env{'form.origurl'}) { |
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$info{'origurl'} = $env{'form.origurl'}; |
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} |
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if ($env{'form.symb'}) { |
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$info{'symb'} = $env{'form.symb'}; |
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} |
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if ($env{'request.sso.login'}) { |
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$info{'sso.login'} = $env{'request.sso.login'}; |
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} |
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if ($env{'request.sso.reloginserver'}) { |
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$info{'sso.reloginserver'} = $env{'request.sso.reloginserver'}; |
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} |
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if ($env{'request.lti.login'}) { |
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$info{'lti.login'} = $env{'request.lti.login'}; |
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} |
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if ($env{'request.lti.uri'}) { |
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$info{'lti.uri'} = $env{'request.lti.uri'}; |
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} |
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if ($env{'request.lti.reqcrs'}) { |
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$info{'lti.reqcrs'} = $env{'request.lti.reqcrs'}; |
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} |
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if ($env{'request.lti.reqrole'}) { |
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$info{'lti.reqrole'} = $env{'request.lti.reqrole'}; |
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} |
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if ($env{'request.lti.selfenrollrole'}) { |
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$info{'lti.selfenrollrole'} = $env{'request.lti.selfenrollrole'}; |
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} |
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if ($env{'request.lti.sourcecrs'}) { |
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$info{'lti.sourcecrs'} = $env{'request.lti.sourcecrs'}; |
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} |
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if ($env{'request.lti.passbackid'}) { |
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$info{'lti.passbackid'} = $env{'request.lti.passbackid'}; |
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} |
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if ($env{'request.lti.passbackurl'}) { |
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$info{'lti.passbackurl'} = $env{'request.lti.passbackurl'}; |
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} |
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if ($env{'request.lti.rosterid'}) { |
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$info{'lti.rosterid'} = $env{'request.lti.rosterid'}; |
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} |
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if ($env{'request.lti.rosterurl'}) { |
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$info{'lti.rosterurl'} = $env{'request.lti.rosterurl'}; |
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} |
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if ($env{'request.lti.target'}) { |
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$info{'lti.target'} = $env{'request.lti.target'}; |
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} |
my $token = &Apache::lonnet::tmpput(\%info,$env{'form.otherserver'}); |
my $token = &Apache::lonnet::tmpput(\%info,$env{'form.otherserver'}); |
my $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url=http://'.$switch_to.'/adm/migrateuser?token='.$token.'">'; |
my $url =$protocol.'://'.$switch_to.'/adm/login?'. |
my $bodytag=&Apache::loncommon::bodytag('Switching Server ...'); |
'domain='.$env{'user.domain'}. |
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'&username='.$env{'user.name'}. |
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'&token='.$token; |
# --------------------------------------------------------------- Screen Output |
# --------------------------------------------------------------- Screen Output |
$r->print(<<ENDDOCUMENT); |
return &do_redirect($r, $url, 0); |
<html> |
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<head><title>The LearningOnline Network with CAPA Logout</title> |
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$switch |
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</head> |
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$bodytag |
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$windowinfo |
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</body> |
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</html> |
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ENDDOCUMENT |
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&Apache::lonnet::flushcourselogs(); |
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return OK; |
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} |
} |
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1; |
1; |