Mercurial > hg > nginx-tests
view proxy_next_upstream.t @ 1825:3629eda94c1b
Tests: handling of EWOULDBLOCK from sysread() with IO::Socket::SSL.
With IO::Socket::SSL, when select() reports that the socket is readable,
reading from it might still fail with EWOULDBLOCK, since no application
data is available in the socket. In particular, this might happen with
TLSv1.3 when a session ticket is received after the handshake. Fix is
to explicitly check for EWOULDBLOCK errors.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 21 Mar 2023 02:57:39 +0300 |
parents | 5ac6efbe5552 |
children |
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#!/usr/bin/perl # (C) Maxim Dounin # Tests for http proxy module, proxy_next_upstream directive. ############################################################################### 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 rewrite/)->plan(8); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% upstream u { server 127.0.0.1:8081; server 127.0.0.1:8082; } upstream u2 { server 127.0.0.1:8081; server 127.0.0.1:8082; } upstream u3 { server 127.0.0.1:8081; server 127.0.0.1:8082 down; } server { listen 127.0.0.1:8080; server_name localhost; location / { proxy_pass http://u; proxy_next_upstream http_500 http_404; } location /all/ { proxy_pass http://u2; proxy_next_upstream http_500 http_404; error_page 404 /all/404; proxy_intercept_errors on; } location /all/404 { return 200 "$upstream_addr\n"; } location /down { proxy_pass http://u3; proxy_next_upstream http_404; } } server { listen 127.0.0.1:8081; server_name localhost; location / { return 404; } location /ok { return 200 "AND-THIS\n"; } location /500 { return 500; } location /all/ { return 404; } } server { listen 127.0.0.1:8082; server_name localhost; location / { return 200 "TEST-OK-IF-YOU-SEE-THIS\n"; } location /all/ { return 404; } } } EOF $t->run(); ############################################################################### my ($p1, $p2) = (port(8081), port(8082)); # check if both request fallback to a backend # which returns valid response like(http_get('/'), qr/SEE-THIS/, 'proxy request'); like(http_get('/'), qr/SEE-THIS/, 'second request'); # make sure backend isn't switched off after # proxy_next_upstream http_404 like(http_get('/ok') . http_get('/ok'), qr/AND-THIS/, 'not down'); # next upstream on http_500 like(http_get('/500'), qr/SEE-THIS/, 'request 500'); like(http_get('/500'), qr/SEE-THIS/, 'request 500 second'); # make sure backend switched off with http_500 unlike(http_get('/ok') . http_get('/ok'), qr/AND-THIS/, 'down after 500'); # make sure all backends are tried once like(http_get('/all/rr'), qr/^127.0.0.1:($p1, 127.0.0.1:$p2|$p2, 127.0.0.1:$p1)$/mi, 'all tried once'); # make sure backend marked as down doesn't count towards "no live upstreams" # after all backends are tried with http_404 like(http_get('/down/'), qr/Not Found/, 'all tried with down'); ###############################################################################