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http_header_buffers.t
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#!/usr/bin/perl
# (C) Maxim Dounin
# (C) Nginx, Inc.
# Tests for large_client_header_buffers directive.
###############################################################################
use warnings;
use strict;
use Test::More;
use Socket qw/ CRLF /;
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/)->plan(10)
->write_file_expand('nginx.conf', <<'EOF');
%%TEST_GLOBALS%%
daemon off;
events {
}
http {
%%TEST_GLOBALS_HTTP%%
connection_pool_size 128;
client_header_buffer_size 128;
server {
listen 127.0.0.1:8080;
server_name five;
large_client_header_buffers 5 256;
return 204;
}
server {
listen 127.0.0.1:8080;
server_name ten;
large_client_header_buffers 10 256;
return 204;
}
server {
listen 127.0.0.1:8080;
server_name one;
large_client_header_buffers 1 256;
return 204;
}
server {
listen 127.0.0.1:8080;
server_name foo;
large_client_header_buffers 5 256;
add_header X-URI $uri;
add_header X-Foo $http_x_foo;
return 204;
}
}
EOF
$t->run();
###############################################################################
TODO: {
todo_skip 'overflow', 2 unless $ENV{TEST_NGINX_UNSAFE};
# if hc->busy is allocated before the virtual server is selected,
# and then additional buffers are allocated in a virtual server with larger
# number of buffers configured, hc->busy will be overflowed
like(http(
"GET / HTTP/1.0" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"Host: ten" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
CRLF
), qr/204|400/, 'additional buffers in virtual server');
# for pipelined requests large header buffers are saved to hc->free;
# it sized for number of buffers in the current virtual server, but
# saves previously allocated buffers, and there may be more buffers if
# allocatad before the virtual server was selected
like(http(
"GET / HTTP/1.1" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"Host: one" . CRLF .
CRLF .
"GET / HTTP/1.1" . CRLF .
"Host: one" . CRLF .
"Connection: close" . CRLF .
CRLF
), qr/204/, 'pipelined with too many buffers');
}
# check if long header and long request lines are correctly returned
# when nginx allocates a long header buffer
like(http(
"GET / HTTP/1.0" . CRLF .
"Host: foo" . CRLF .
"X-Foo: foo" . ("1234567890" x 20) . "bar" . CRLF .
CRLF
), qr/X-Foo: foo(1234567890){20}bar/, 'long header');
like(http(
"GET /foo" . ("1234567890" x 20) . "bar HTTP/1.0" . CRLF .
"Host: foo" . CRLF .
CRLF
), qr!X-URI: /foo(1234567890){20}bar!, 'long request line');
# the same as the above, but with pipelining, so there is a buffer
# allocated in the previous request
like(http(
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
CRLF .
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"Connection: close" . CRLF .
"X-Foo: foo" . ("1234567890" x 20) . "bar" . CRLF .
CRLF
), qr/X-Foo: foo(1234567890){20}bar/, 'long header after pipelining');
like(http(
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
CRLF .
"GET /foo" . ("1234567890" x 20) . "bar HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"Connection: close" . CRLF .
CRLF
), qr!X-URI: /foo(1234567890){20}bar!, 'long request line after pipelining');
# the same as the above, but with keepalive; this ensures that previously
# allocated buffers are properly cleaned up when we set keepalive handler
like(http(
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
CRLF,
sleep => 0.1, body =>
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"Connection: close" . CRLF .
"X-Foo: foo" . ("1234567890" x 20) . "bar" . CRLF .
CRLF
), qr/X-Foo: foo(1234567890){20}bar/, 'long header after keepalive');
like(http(
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
CRLF,
sleep => 0.1, body =>
"GET /foo" . ("1234567890" x 20) . "bar HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"Connection: close" . CRLF .
CRLF
), qr!X-URI: /foo(1234567890){20}bar!, 'long request line after keepalive');
# the same as the above, but with pipelining and then keepalive;
# this ensures that previously allocated buffers are properly cleaned
# up when we set keepalive handler, including hc->free
like(http(
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
CRLF .
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
CRLF,
sleep => 0.1, body =>
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"Connection: close" . CRLF .
"X-Foo: foo" . ("1234567890" x 20) . "bar" . CRLF .
CRLF
), qr/X-Foo: foo(1234567890){20}bar/, 'long header after both');
like(http(
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
CRLF .
"GET / HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"X-Foo: " . ("1234567890" x 20) . CRLF .
CRLF,
sleep => 0.1, body =>
"GET /foo" . ("1234567890" x 20) . "bar HTTP/1.1" . CRLF .
"Host: foo" . CRLF .
"Connection: close" . CRLF .
CRLF
), qr!X-URI: /foo(1234567890){20}bar!, 'long request line after both');
###############################################################################