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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
# You may distribute under the terms of either the GNU General Public License
# or the Artistic License (the same terms as Perl itself)
#
# (C) Paul Evans, 2010-2024 -- leonerd@leonerd.org.uk
package Net::Async::FastCGI::PSGI 0.26;
use v5.14;
use warnings;
use Carp;
use base qw( Net::Async::FastCGI );
my $CRLF = "\x0d\x0a";
=head1 NAME
C<Net::Async::FastCGI::PSGI> - use C<PSGI> applications with C<Net::Async::FastCGI>
=head1 SYNOPSIS
use Net::Async::FastCGI::PSGI;
use IO::Async::Loop;
my $loop = IO::Async::Loop->new;
my $fcgi = Net::Async::FastCGI::PSGI->new(
port => 12345,
app => sub {
my $env = shift;
return [
200,
[ "Content-Type" => "text/plain" ],
[ "Hello, world!" ],
];
},
);
$loop->add( $fcgi );
$loop->run;
=head1 DESCRIPTION
This subclass of L<Net::Async::FastCGI> allows a FastCGI responder to use a
L<PSGI> application to respond to requests. It acts as a gateway between the
FastCGI connection from the webserver, and the C<PSGI> application. Aside from
the use of C<PSGI> instead of the C<on_request> event, this class behaves
similarly to C<Net::Async::FastCGI>.
=cut
=head1 PARAMETERS
The following named parameters may be passed to C<new> or C<configure>:
=over 8
=item app => CODE
Reference to the actual C<PSGI> application to use for responding to requests
=back
=cut
sub configure
{
my $self = shift;
my %args = @_;
if( exists $args{app} ) {
$self->{app} = delete $args{app};
}
$self->SUPER::configure( %args );
}
=head1 PSGI ENVIRONMENT
The following extra keys are supplied to the environment of the C<PSGI> app:
=over 8
=item C<net.async.fastcgi>
The C<Net::Async::FastCGI::PSGI> object serving the request
=item C<net.async.fastcgi.req>
The L<Net::Async::FastCGI::Request> object representing this particular
request
=item C<io.async.loop>
The L<IO::Async::Loop> object that the C<Net::Async::FastCGI::PSGI> object is
a member of.
=back
=cut
sub on_request
{
my $self = shift;
my ( $req ) = @_;
# Much of this code stolen fro^W^Winspired by Plack::Handler::Net::FastCGI
my %env = (
%{ $req->params },
'psgi.version' => [1,0],
'psgi.url_scheme' => ($req->param("HTTPS")||"off") =~ m/^(?:on|1)/i ? "https" : "http",
'psgi.input' => $req->stdin,
'psgi.errors' => $req->stderr,
'psgi.multithread' => 0,
'psgi.multiprocess' => 0,
'psgi.run_once' => 0,
'psgi.nonblocking' => 1,
'psgi.streaming' => 1,
# Extensions
'net.async.fastcgi' => $self,
'net.async.fastcgi.req' => $req,
'io.async.loop' => $self->get_loop,
);
my $resp = $self->{app}->( \%env );
my $responder = sub {
my ( $status, $headers, $body ) = @{ +shift };
$req->print_stdout( "Status: $status$CRLF" );
while( my ( $header, $value ) = splice @$headers, 0, 2 ) {
$req->print_stdout( "$header: $value$CRLF" );
}
$req->print_stdout( $CRLF );
if( !defined $body ) {
croak "Responder given no body in void context" unless defined wantarray;
return $req->stdout_with_close;
}
if( ref $body eq "ARRAY" ) {
$req->print_stdout( $_ ) for @$body;
$req->finish( 0 );
}
else {
$req->stream_stdout_then_finish(
sub {
local $/ = \8192;
my $buffer = $body->getline;
defined $buffer and return $buffer;
$body->close;
return undef;
},
0
);
}
};
if( ref $resp eq "ARRAY" ) {
$responder->( $resp );
}
elsif( ref $resp eq "CODE" ) {
$resp->( $responder );
}
}
=head1 SEE ALSO
=over 4
=item *
L<PSGI> - Perl Web Server Gateway Interface Specification
=item *
L<Plack::Handler::Net::Async::FastCGI> - FastCGI handler for Plack using L<Net::Async::FastCGI>
=back
=head1 AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
=cut
0x55AA;
|
