Mercurial > hg > nginx-tests
view limit_conn_dry_run.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 $content_length variable is used
when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses
the value calculated based on the actual request body buffers, and therefore
works correctly).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Sat, 27 Apr 2024 18:55:50 +0300 |
parents | 5ac6efbe5552 |
children |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for limit_conn_dry_run directive, limit_conn_status variable. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/http proxy limit_conn limit_req/); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% limit_req_zone $binary_remote_addr zone=req:1m rate=30r/m; limit_conn_zone $binary_remote_addr zone=zone:1m; log_format test $uri:$limit_conn_status; server { listen 127.0.0.1:8081; server_name localhost; location /w { limit_req zone=req burst=10; } } server { listen 127.0.0.1:8080; server_name localhost; add_header X-Status $limit_conn_status always; access_log %%TESTDIR%%/test.log test; location /reject { proxy_pass http://127.0.0.1:8081/w; limit_conn zone 1; } location /dry { limit_conn zone 1; limit_conn_dry_run on; } location / { } } } EOF $t->write_file('w', ''); $t->run()->plan(6); ############################################################################### like(http_get('/reject'), qr/ 200 .*PASSED/s, 'passed'); my $s = http_get('/reject', start => 1); like(http_get('/reject'), qr/ 503 .*REJECTED(?!_)/s, 'rejected'); like(http_get('/dry'), qr/ 404 .*REJECTED_DRY_RUN/s, 'rejected dry run'); unlike(http_get('/'), qr/X-Status/, 'no limit'); close $s; $t->stop(); like($t->read_file('error.log'), qr/limiting connections, dry/, 'log dry run'); like($t->read_file('test.log'), qr|^/:-|m, 'log not found'); ###############################################################################