blob: 2ac2d7e614ffc8ecfae7f8f2ba38a9603d630379 [file] [log] [blame]
#!/usr/bin/perl
# (C) Maxim Dounin
# Tests for http proxy cache, "header already sent" alerts on backend errors,
# http://mailman.nginx.org/pipermail/nginx-devel/2018-January/010737.html.
###############################################################################
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 cache/)->plan(1)
->write_file_expand('nginx.conf', <<'EOF');
%%TEST_GLOBALS%%
daemon off;
events {
}
http {
%%TEST_GLOBALS_HTTP%%
proxy_cache_path %%TESTDIR%%/cache levels=1:2
keys_zone=NAME:1m;
server {
listen 127.0.0.1:8080;
server_name localhost;
location / {
proxy_pass http://127.0.0.1:8081;
proxy_cache NAME;
proxy_read_timeout 500ms;
}
}
server {
listen 127.0.0.1:8081;
server_name localhost;
location / {
postpone_output 0;
limit_rate 512;
expires 1m;
}
}
}
EOF
$t->write_file('big.html', 'x' x 1024);
$t->run();
###############################################################################
# make a HEAD request; since cache is enabled, nginx converts HEAD to GET
# and will set u->pipe->downstream_error to suppress sending the response
# body to the client
like(http_head('/big.html'), qr/200 OK/, 'head request');
# once proxy_read_timeout expires, nginx will call
# ngx_http_finalize_upstream_request() with u->pipe->downstream_error set
# and rc = NGX_HTTP_GATEWAY_BAD_GATEWAY; after revision ad3f342f14ba046c this
# will result in ngx_http_finalize_request(NGX_HTTP_GATEWAY_BAD_GATEWAY),
# leading to an attempt to return additional error response and
# the "header already sent" alert; fixed in 93abb5a855d6
###############################################################################