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|
use strict;
use warnings;
use AnyEvent;
use AnyEvent::Socket;
use AnyEvent::Handle;
use Net::SSLeay;
use AnyEvent::TLS;
use Protocol::HTTP2;
use Protocol::HTTP2::Client;
use Protocol::HTTP2::Constants qw(const_name);
Net::SSLeay::initialize();
my $client = Protocol::HTTP2::Client->new(
on_change_state => sub {
my ( $stream_id, $previous_state, $current_state ) = @_;
printf "Stream %i changed state from %s to %s\n",
$stream_id, const_name( "states", $previous_state ),
const_name( "states", $current_state );
},
on_push => sub {
my ($push_headers) = @_;
# If we accept PUSH_PROMISE
# return callback to receive promised data
# return undef otherwise
print "Server want to push some resource to us\n";
return sub {
my ( $headers, $data ) = @_;
print "Received promised resource\n";
}
},
on_error => sub {
my $error = shift;
printf "Error occurred: %s\n", const_name( "errors", $error );
}
);
my $host = '127.0.0.1';
my $port = 8000;
# Prepare http/2 request
$client->request(
':scheme' => "https",
':authority' => $host . ":" . $port,
':path' => "/minil.toml",
':method' => "GET",
headers => [
'accept' => '*/*',
'user-agent' => 'perl-Protocol-HTTP2/0.01',
],
on_done => sub {
my ( $headers, $data ) = @_;
printf "Get headers. Count: %i\n", scalar(@$headers) / 2;
printf "Get data. Length: %i\n", length($data);
print $data;
},
);
my $w = AnyEvent->condvar;
tcp_connect $host, $port, sub {
my ($fh) = @_ or do {
print "connection failed: $!\n";
$w->send;
return;
};
my $tls;
eval {
$tls = AnyEvent::TLS->new( method => "TLSv1_2", );
# ALPN (Net-SSLeay > 1.55, openssl >= 1.0.2)
if ( exists &Net::SSLeay::CTX_set_alpn_protos ) {
Net::SSLeay::CTX_set_alpn_protos( $tls->ctx,
[Protocol::HTTP2::ident_tls] );
}
# NPN (Net-SSLeay > 1.45, openssl >= 1.0.1)
elsif ( exists &Net::SSLeay::CTX_set_next_proto_select_cb ) {
Net::SSLeay::CTX_set_next_proto_select_cb( $tls->ctx,
[Protocol::HTTP2::ident_tls] );
}
else {
die "ALPN and NPN is not supported\n";
}
};
if ($@) {
print "Some problem with SSL CTX: $@\n";
$w->send;
return;
}
my $handle;
$handle = AnyEvent::Handle->new(
fh => $fh,
tls => "connect",
tls_ctx => $tls,
autocork => 1,
on_error => sub {
$_[0]->destroy;
print "connection error\n";
$w->send;
},
on_eof => sub {
$handle->destroy;
$w->send;
}
);
# First write preface to peer
while ( my $frame = $client->next_frame ) {
$handle->push_write($frame);
}
$handle->on_read(
sub {
my $handle = shift;
$client->feed( $handle->{rbuf} );
$handle->{rbuf} = undef;
while ( my $frame = $client->next_frame ) {
$handle->push_write($frame);
}
$handle->push_shutdown if $client->shutdown;
}
);
};
$w->recv;
|
