112 lines
2.8 KiB
Perl
112 lines
2.8 KiB
Perl
package WebGUI::Middleware::Session;
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use strict;
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use parent qw(Plack::Middleware);
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use WebGUI::Config;
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use WebGUI::Session;
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use Try::Tiny;
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use WebGUI::Middleware::HTTPExceptions;
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use Plack::Util::Accessor qw( config );
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=head1 NAME
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WebGUI::Middleware::Session - Opens and closes the per-request WebGUI::Session
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=head1 DESCRIPTION
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This is PSGI middleware for WebGUI that instantiates, opens and closes the
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L<WebGUI::Session> object. It does this as early and as late as possible, so
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that all intermediate middleware (and the WebGUI app itself) can grab
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the session out of the PSGI env hash:
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$env->{'webgui.session'};
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and not worry about closing it.
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It also sets C<webgui.debug> as appropriate.
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=head2 call ($env)
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Interface method for this Middleware class.
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=head3 $env
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A plack environment hash
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=cut
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sub call {
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my ( $self, $env ) = @_;
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my $app = $self->app;
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my $config = $self->config or die 'Mandatory config parameter missing';
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# Logger fallback
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if (!$env->{'psgix.logger'}) {
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require Plack::Middleware::SimpleLogger;
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$app = Plack::Middleware::SimpleLogger->wrap( $app );
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}
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my $session = $env->{'webgui.session'} = WebGUI::Session->open( $config, $env ) or
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die "Unable to instantiate WebGUI::Session - $_";
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if ( !$session ) {
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# We don't have access to a db connection to find out if the user is allowed to see
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# a verbose error message or not, so resort to a generic Internal Server Error
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return [ 500, [ 'Content-Type' => 'text/plain' ], [ 'Internal Server Error' ] ];
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}
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my $debug = $env->{'webgui.debug'} = $self->canShowDebug($env);
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# Run the app
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my $res = $app->($env);
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# Use callback style response
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return $self->response_cb(
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$res,
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sub {
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my $res = shift;
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# Close the Session if we aren't streaming
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if ( $env->{'webgui.session'} and $env->{'webgui.session'}->response and ! $env->{'webgui.session'}->response->streaming ) {
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$env->{'webgui.session'}->close();
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delete $env->{'webgui.session'};
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}
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# If we are streaming, the session will be closed inside of
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# WebGUI.pm
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}
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);
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}
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=head2 canShowDebug ($env)
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Checks to see whether or not the owner of this session can see debug output. It checks
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WebGUI settings showDebug and ipDebug for this.
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=head3 $env
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A Plack environment hash.
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=cut
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sub canShowDebug {
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my $self = shift;
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my $env = shift;
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my $session = $env->{'webgui.session'};
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my $canShow = $session->setting->get("showDebug");
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return
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unless $canShow;
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my $ips = $session->setting->get('ipDebug');
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return 1
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if $ips eq '';
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$ips =~ s/\s+//g;
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my @ips = split /,/, $ips;
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my $ok = Net::CIDR::Lite->new(@ips)->find($env->{REMOTE_ADDR});
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return $ok;
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}
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1;
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