};
use Errno qw(EAGAIN);
-my $pipelineq = [];
-sub process_pipelineq () {
- my $q = $pipelineq;
- $pipelineq = [];
- foreach (@$q) {
- next unless $_->{sock};
- rbuf_process($_);
- }
-}
-
# Use the same configuration parameter as git since this is primarily
# a slow-client sponge for git-http-backend
# TODO: support per-respository http.maxRequestBuffer somehow...
# otherwise we can be buffering infinitely w/o backpressure
return read_input($self) if ref($self->{env});
- my $rbuf = $self->{rbuf} // (\(my $x = ''));
- $self->do_read($rbuf, 8192, length($$rbuf)) or return;
- rbuf_process($self, $rbuf);
-}
-
-sub rbuf_process {
- my ($self, $rbuf) = @_;
- $rbuf //= $self->{rbuf} // (\(my $x = ''));
+ my $rbuf = $self->{rbuf} // (\(my $x = ''));
my %env = %{$self->{httpd}->{env}}; # full hash copy
- my $r = parse_http_request($$rbuf, \%env);
-
- # We do not support Trailers in chunked requests, for now
- # (they are rarely-used and git (as of 2.7.2) does not use them)
- if ($r == -1 || $env{HTTP_TRAILER} ||
- # this length-check is necessary for PURE_PERL=1:
- ($r == -2 && length($$rbuf) > 0x4000)) {
- return quit($self, 400);
- }
- if ($r < 0) { # incomplete
- $self->rbuf_idle($rbuf);
- return $self->requeue;
+ my $r;
+ while (($r = parse_http_request($$rbuf, \%env)) < 0) {
+ # We do not support Trailers in chunked requests, for
+ # now (they are rarely-used and git (as of 2.7.2) does
+ # not use them).
+ # this length-check is necessary for PURE_PERL=1:
+ if ($r == -1 || $env{HTTP_TRAILER} ||
+ ($r == -2 && length($$rbuf) > 0x4000)) {
+ return quit($self, 400);
+ }
+ $self->do_read($rbuf, 8192, length($$rbuf)) or return;
}
+ return quit($self, 400) if grep(/\s/, keys %env); # stop smugglers
$$rbuf = substr($$rbuf, $r);
- my $len = input_prepare($self, \%env);
- defined $len or return write_err($self, undef); # EMFILE/ENFILE
+ my $len = input_prepare($self, \%env) //
+ return write_err($self, undef); # EMFILE/ENFILE
$len ? read_input($self, $rbuf) : app_dispatch($self, undef, $rbuf);
}
}
};
if ($@) {
- err($self, "response_write error: $@");
+ warn "response_write error: $@";
$self->close;
}
}
$self->write(\($_[1])) if $_[1] ne '';
}
-sub next_request ($) {
- my ($self) = @_;
- if ($self->{rbuf}) {
- # avoid recursion for pipelined requests
- PublicInbox::DS::requeue(\&process_pipelineq) if !@$pipelineq;
- push @$pipelineq, $self;
- } else { # wait for next request
- $self->requeue;
- }
-}
-
sub response_done {
my ($self, $alive) = @_;
delete $self->{env}; # we're no longer busy
$self->write(\"0\r\n\r\n") if $alive == 2;
- $self->write($alive ? \&next_request : \&close);
+ $self->write($alive ? $self->can('requeue') : \&close);
}
sub getline_pull {
# limit our own running time for fairness with other
# clients and to avoid buffering too much:
my $buf = eval {
- local $/ = \8192;
+ local $/ = \65536;
$forward->getline;
} if $forward;
return; # likely
}
} elsif ($@) {
- err($self, "response ->getline error: $@");
+ warn "response ->getline error: $@";
$self->close;
}
# avoid recursion
if (delete $self->{forward}) {
eval { $forward->close };
if ($@) {
- err($self, "response ->close error: $@");
+ warn "response ->close error: $@";
$self->close; # idempotent
}
}
sub env_chunked { ($_[0]->{HTTP_TRANSFER_ENCODING} // '') =~ /\Achunked\z/i }
-sub err ($$) {
- eval { $_[0]->{httpd}->{env}->{'psgi.errors'}->print($_[1]."\n") };
-}
-
sub write_err {
my ($self, $len) = @_;
my $msg = $! || '(zero write)';
$msg .= " ($len bytes remaining)" if defined $len;
- err($self, "error buffering to input: $msg");
+ warn "error buffering to input: $msg";
quit($self, 500);
}
if ($! == EAGAIN) { # epoll/kevent watch already set by do_read
$self->{input_left} = $len;
} else {
- err($self, "error reading input: $! ($len bytes remaining)");
+ warn "error reading input: $! ($len bytes remaining)";
}
}
my $self = $_[0];
if (my $forward = delete $self->{forward}) {
eval { $forward->close };
- err($self, "forward ->close error: $@") if $@;
+ warn "forward ->close error: $@" if $@;
}
$self->SUPER::close; # PublicInbox::DS::close
}
-# for graceful shutdown in PublicInbox::Daemon:
-sub busy () {
+sub busy { # for graceful shutdown in PublicInbox::Daemon:
my ($self) = @_;
- ($self->{rbuf} || exists($self->{env}) || $self->{wbuf});
+ defined($self->{rbuf}) || exists($self->{env}) || defined($self->{wbuf})
}
# runs $cb on the next iteration of the event loop at earliest