Mercurial > hg > nginx-tests
view uwsgi_body.t @ 1961:fe6f22da53ec default tip
Tests: tests for usage of discarded body.
The client_max_body_size limit should be ignored when the request body
is already discarded. In HTTP/1.x, this is done by checking the
r->discard_body flag when the body is being discarded, and because
r->headers_in.content_length_n is 0 when it's already discarded. This,
however, does not happen with HTTP/2 and HTTP/3, and therefore
"error_page 413" does not work without relaxing the limit.
Further, with proxy_pass, r->headers_in.content_length_n is used to determine
length of the request body, and therefore is not correct if discarding of
the request body isn't yet complete. While discarding the request body,
r->headers_in.content_length_n contains the rest of the body to discard
(or, in case of chunked request body, the rest of the current chunk to
discard).
Similarly, the $content_length variable uses r->headers_in.content_length
if available, and also incorrect. The $content_length variable is used
when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses
the value calculated based on the actual request body buffers, and therefore
works correctly).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Sat, 27 Apr 2024 18:55:50 +0300 |
parents | b27bcded6449 |
children |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Test for uwsgi backend with request body. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/http rewrite uwsgi/) ->has_daemon('uwsgi')->plan(5) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% server { listen 127.0.0.1:8080; server_name localhost; set $variable $content_length; location / { uwsgi_pass 127.0.0.1:8081; uwsgi_param CONTENT_LENGTH $content_length if_not_empty; } } } EOF $t->write_file('uwsgi_test_app.py', <<END); def application(env, start_response): start_response('200 OK', [('Content-Type','text/plain')]) if "CONTENT_LENGTH" not in env: return b"SEE-THIS" cl = int(env.get('CONTENT_LENGTH')) rb = env.get('wsgi.input').read(cl) return b"cl=%d '%s'" % (cl, rb) END my $uwsgihelp = `uwsgi -h`; my @uwsgiopts = (); if ($uwsgihelp !~ /--wsgi-file/) { # uwsgi has no python support, maybe plugin load is necessary push @uwsgiopts, '--plugin', 'python'; push @uwsgiopts, '--plugin', 'python3'; } open OLDERR, ">&", \*STDERR; close STDERR; $t->run_daemon('uwsgi', '--socket', '127.0.0.1:' . port(8081), @uwsgiopts, '--wsgi-file', $t->testdir() . '/uwsgi_test_app.py', '--logto', $t->testdir() . '/uwsgi_log'); open STDERR, ">&", \*OLDERR; $t->run(); $t->waitforsocket('127.0.0.1:' . port(8081)) or die "Can't start uwsgi"; ############################################################################### like(http_get('/'), qr/SEE-THIS/, 'uwsgi no body'); like(http_get_length('/', 'foobar'), qr/cl=6 'foobar'/, 'uwsgi body'); like(http_get_length('/', ''), qr/cl=0 ''/, 'uwsgi empty body'); # rewrite set is used to cache $content_length early like(http_get_chunked('/', 'foobar'), qr/cl=6 'foobar'/, 'uwsgi chunked'); like(http_get_chunked('/', ''), qr/cl=0 ''/, 'uwsgi empty chunked'); ############################################################################### sub http_get_length { my ($url, $body) = @_; my $length = length $body; return http(<<EOF); GET $url HTTP/1.1 Host: localhost Connection: close Content-Length: $length $body EOF } sub http_get_chunked { my ($url, $body) = @_; my $length = sprintf("%x", length $body); return http(<<EOF); GET $url HTTP/1.1 Host: localhost Connection: close Transfer-Encoding: chunked $length $body 0 EOF } ###############################################################################