/usr/share/perl5/Dancer2/Core/Dispatcher.pm is in libdancer2-perl 0.204002+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | package Dancer2::Core::Dispatcher;
# ABSTRACT: Class for dispatching request to the appropriate route handler
$Dancer2::Core::Dispatcher::VERSION = '0.204002';
use Moo;
use Dancer2::Core::Types;
use Dancer2::Core::Request;
use Dancer2::Core::Response;
has apps => (
is => 'rw',
isa => ArrayRef,
default => sub { [] },
);
has apps_psgi => (
is => 'ro',
isa => ArrayRef,
lazy => 1,
builder => '_build_apps_psgi',
);
sub _build_apps_psgi {
my $self = shift;
return [ map +( $_->name, $_->to_app ), @{ $self->apps } ];
}
sub dispatch {
my ( $self, $env ) = @_;
my @apps = @{ $self->apps_psgi };
DISPATCH: while (1) {
for ( my $i = 0; $i < @apps; $i += 2 ) {
my ( $app_name, $app ) = @apps[ $i, $i + 1 ];
my $response = $app->($env);
# check for an internal request
delete Dancer2->runner->{'internal_forward'}
and next DISPATCH;
# the app raised a flag saying it couldn't match anything
# which is different than "I matched and it's a 404"
delete Dancer2->runner->{'internal_404'}
or do {
delete Dancer2->runner->{'internal_request'};
return $response;
};
}
# don't run anymore
delete Dancer2->runner->{'internal_request'};
last;
} # while
# a 404 on all apps, using the first app
my $default_app = $self->apps->[0];
my $request = $default_app->build_request($env);
return $default_app->response_not_found($request)->to_psgi;
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Dancer2::Core::Dispatcher - Class for dispatching request to the appropriate route handler
=head1 VERSION
version 0.204002
=head1 SYNOPSIS
use Dancer2::Core::Dispatcher;
# Create an instance of dispatcher
my $dispatcher = Dancer2::Core::Dispatcher->new( apps => [$app] );
# Dispatch a request
my $resp = $dispatcher->dispatch($env)->to_psgi;
# Capture internal error of a response (if any) after a dispatch
$dispatcher->response_internal_error($app, $error);
# Capture response not found for an application the after dispatch
$dispatcher->response_not_found($env);
=head1 ATTRIBUTES
=head2 apps
The apps is an array reference to L<Dancer2::Core::App>.
=head2 default_content_type
The default_content_type is a string which represents the context of the
request. This attribute is read-only.
=head1 METHODS
=head2 dispatch
The C<dispatch> method accepts the list of applications, hash reference for
the B<env> attribute of L<Dancer2::Core::Request> and optionally the request
object and an env as input arguments.
C<dispatch> returns a response object of L<Dancer2::Core::Response>.
Any before hook and matched route code is wrapped using L<Return::MultiLevel>
to allow DSL keywords such as forward and redirect to short-circuit remaining code
without having to throw an exception. L<Return::MultiLevel> will use L<Scope::Upper>
(an XS module) if it is available.
=head2 response_internal_error
The C<response_internal_error> takes as input the list of applications and
a variable error and returns an object of L<Dancer2::Core::Error>.
=head2 response_not_found
The C<response_not_found> consumes as input the list of applications and an
object of type L<Dancer2::Core::App> and returns an object
L<Dancer2::Core::Error>.
=head1 AUTHOR
Dancer Core Developers
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2016 by Alexis Sukrieh.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
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