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limit websocket frame size

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AnyEvent checks rbuf_max after calling the callback (too late), so
we can receive larger data.
This commit is contained in:
Dietmar Maurer 2018-06-06 16:41:30 +02:00
parent 25c6e03f71
commit cdb6932787
1 changed files with 3 additions and 3 deletions
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6
PVE/APIServer/AnyEvent.pm
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@ -374,8 +374,8 @@ sub websocket_proxy {
$reqstate->{proxyhdl} = AnyEvent::Handle->new(
fh => $fh,
rbuf_max => 64*1024,
wbuf_max => 64*10*1024,
rbuf_max => $max_payload_size,
wbuf_max => $max_payload_size*10,
timeout => 5,
on_eof => sub {
my ($hdl) = @_;
@ -398,7 +398,7 @@ sub websocket_proxy {
my ($hdl) = @_;
my $len = length($hdl->{rbuf});
my $data = substr($hdl->{rbuf}, 0, $len, '');
my $data = substr($hdl->{rbuf}, 0, $len > $max_payload_size ? $max_payload_size : $len, '');
my $string;
my $payload;