/usr/share/perl5/Dancer2/Core/Response/Delayed.pm is in libdancer2-perl 0.166001+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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 | package Dancer2::Core::Response::Delayed;
# ABSTRACT: Delayed responses
$Dancer2::Core::Response::Delayed::VERSION = '0.166001';
use Moo;
use MooX::Types::MooseLike::Base qw<CodeRef InstanceOf>;
has request => (
is => 'ro',
isa => InstanceOf['Dancer2::Core::Request'],
required => 1,
);
has response => (
is => 'ro',
isa => InstanceOf['Dancer2::Core::Response'],
required => 1,
handles => [qw/status headers/],
);
has cb => (
is => 'ro',
isa => CodeRef,
required => 1,
);
has error_cb => (
is => 'ro',
isa => CodeRef,
predicate => '_has_error_cb',
);
sub is_halted() {0}
sub has_passed() {0}
sub to_psgi {
my $self = shift;
return sub {
my $responder = shift;
local $Dancer2::Core::Route::REQUEST = $self->request;
local $Dancer2::Core::Route::RESPONSE = $self->response;
local $Dancer2::Core::Route::RESPONDER = $responder;
local $Dancer2::Core::Route::WRITER;
local $Dancer2::Core::Route::ERROR_HANDLER =
$self->_has_error_cb ? $self->error_cb : undef;
$self->cb->();
};
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Dancer2::Core::Response::Delayed - Delayed responses
=head1 VERSION
version 0.166001
=head1 SYNOPSIS
my $response = Dancer2::Core::Response::Delayed->new(
request => Dancer2::Core::Request->new(...),
response => Dancer2::Core::Response->new(...),
cb => sub {...},
# optional error handling
error_cb => sub {
my ($error) = @_;
...
},
);
# or in an app
get '/' => sub {
# delayed response:
delayed {
# streaming content
content "data";
content "more data";
# close user connection
done;
} on_error => sub {
my ($error) = @_;
warning 'Failed to stream to user: ' . request->remote_address;
};
};
=head1 DESCRIPTION
This object represents a delayed (asynchronous) response for L<Dancer2>.
It can be used via the C<delayed> keyword.
It keeps references to a request and a response in order to avoid
keeping a reference ot the application.
=head1 ATTRIBUTES
=head2 request
Contains a request the delayed response uses.
In the context of a web request, this will be the request that existed
when the delayed response has been created.
=head2 response
Contains a response the delayed response uses.
In the context of a web request, this will be the response that existed
when the delayed response has been created.
=head2 cb
The code that will be run asynchronously.
=head2 error_cb
A callback for handling errors. This callback receives the error as its
first (and currently only) parameter.
=head1 METHODS
=head2 is_halted
A method indicating whether the response has halted.
This is useless in the context of an asynchronous request so it simply
returns no.
This method is likely going away.
=head2 has_passed
A method indicating whether the response asked to skip the current
response.
This is useless in the context of an asynchronous request so it simply
returns no.
This method is likely going away.
=head2 to_psgi
Create a PSGI response. The way it works is by returning a proper PSGI
response subroutine which localizes the request and response (in case
the callback wants to edit them without a reference to them), and then
calls the callback.
Finally, when the callback is done, it asks the response (whether it
was changed or not) to create its own PSGI response (calling C<to_psgi>)
and sends that to the callback it receives as a delayed response.
=head1 AUTHOR
Dancer Core Developers
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2015 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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