view src/http/modules/perl/nginx.pm @ 7508:c30a20e06c21

Range filter: fixed duplicate last buffers. In ngx_http_range_singlepart_body() special buffers where passed unmodified, including ones after the end of the range. As such, if the last buffer of a response was sent separately as a special buffer, two buffers with b->last_buf set were present in the response. In particular, this might result in a duplicate final chunk when using chunked transfer encoding (normally range filter and chunked transfer encoding are not used together, but this may happen if there are trailers in the response). This also likely to cause problems in HTTP/2. Fix is to skip all special buffers after we've sent the last part of the range requested. These special buffers are not meaningful anyway, since we set b->last_buf in the buffer with the last part of the range, and everything is expected to be flushed due to it. Additionally, ngx_http_next_body_filter() is now called even if no buffers are to be passed to it. This ensures that various write events are properly propagated through the filter chain. In particular, this fixes test failures observed with the above change and aio enabled.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 13 May 2019 22:44:49 +0300
parents be5cfa918bfc
children 985b0bda403c
line wrap: on
line source

package nginx;

use 5.006001;
use strict;
use warnings;

require Exporter;

our @ISA = qw(Exporter);

our @EXPORT = qw(
    OK
    DECLINED

    HTTP_OK
    HTTP_CREATED
    HTTP_ACCEPTED
    HTTP_NO_CONTENT
    HTTP_PARTIAL_CONTENT

    HTTP_MOVED_PERMANENTLY
    HTTP_MOVED_TEMPORARILY
    HTTP_REDIRECT
    HTTP_SEE_OTHER
    HTTP_NOT_MODIFIED
    HTTP_TEMPORARY_REDIRECT
    HTTP_PERMANENT_REDIRECT

    HTTP_BAD_REQUEST
    HTTP_UNAUTHORIZED
    HTTP_PAYMENT_REQUIRED
    HTTP_FORBIDDEN
    HTTP_NOT_FOUND
    HTTP_NOT_ALLOWED
    HTTP_NOT_ACCEPTABLE
    HTTP_REQUEST_TIME_OUT
    HTTP_CONFLICT
    HTTP_GONE
    HTTP_LENGTH_REQUIRED
    HTTP_REQUEST_ENTITY_TOO_LARGE
    HTTP_REQUEST_URI_TOO_LARGE
    HTTP_UNSUPPORTED_MEDIA_TYPE
    HTTP_RANGE_NOT_SATISFIABLE

    HTTP_INTERNAL_SERVER_ERROR
    HTTP_SERVER_ERROR
    HTTP_NOT_IMPLEMENTED
    HTTP_BAD_GATEWAY
    HTTP_SERVICE_UNAVAILABLE
    HTTP_GATEWAY_TIME_OUT
    HTTP_INSUFFICIENT_STORAGE
);

our $VERSION = '%%VERSION%%';

require XSLoader;
XSLoader::load('nginx', $VERSION);

# Preloaded methods go here.

use constant OK                             => 0;
use constant DECLINED                       => -5;

use constant HTTP_OK                        => 200;
use constant HTTP_CREATED                   => 201;
use constant HTTP_ACCEPTED                  => 202;
use constant HTTP_NO_CONTENT                => 204;
use constant HTTP_PARTIAL_CONTENT           => 206;

use constant HTTP_MOVED_PERMANENTLY         => 301;
use constant HTTP_MOVED_TEMPORARILY         => 302;
use constant HTTP_REDIRECT                  => 302;
use constant HTTP_SEE_OTHER                 => 303;
use constant HTTP_NOT_MODIFIED              => 304;
use constant HTTP_TEMPORARY_REDIRECT        => 307;
use constant HTTP_PERMANENT_REDIRECT        => 308;

use constant HTTP_BAD_REQUEST               => 400;
use constant HTTP_UNAUTHORIZED              => 401;
use constant HTTP_PAYMENT_REQUIRED          => 402;
use constant HTTP_FORBIDDEN                 => 403;
use constant HTTP_NOT_FOUND                 => 404;
use constant HTTP_NOT_ALLOWED               => 405;
use constant HTTP_NOT_ACCEPTABLE            => 406;
use constant HTTP_REQUEST_TIME_OUT          => 408;
use constant HTTP_CONFLICT                  => 409;
use constant HTTP_GONE                      => 410;
use constant HTTP_LENGTH_REQUIRED           => 411;
use constant HTTP_REQUEST_ENTITY_TOO_LARGE  => 413;
use constant HTTP_REQUEST_URI_TOO_LARGE     => 414;
use constant HTTP_UNSUPPORTED_MEDIA_TYPE    => 415;
use constant HTTP_RANGE_NOT_SATISFIABLE     => 416;

use constant HTTP_INTERNAL_SERVER_ERROR     => 500;
use constant HTTP_SERVER_ERROR              => 500;
use constant HTTP_NOT_IMPLEMENTED           => 501;
use constant HTTP_BAD_GATEWAY               => 502;
use constant HTTP_SERVICE_UNAVAILABLE       => 503;
use constant HTTP_GATEWAY_TIME_OUT          => 504;
use constant HTTP_INSUFFICIENT_STORAGE      => 507;


sub rflush {
    my $r = shift;

    $r->flush;
}


1;
__END__

=head1 NAME

nginx - Perl interface to the nginx HTTP server API

=head1 SYNOPSIS

  use nginx;

=head1 DESCRIPTION

This module provides a Perl interface to the nginx HTTP server API.


=head1 SEE ALSO

http://nginx.org/en/docs/http/ngx_http_perl_module.html

=head1 AUTHOR

Igor Sysoev

=head1 COPYRIGHT AND LICENSE

Copyright (C) Igor Sysoev
Copyright (C) Nginx, Inc.


=cut