Mercurial > hg > nginx-tests
annotate proxy_cache_error.t @ 1571:1b4ceab9cb1c
Tests: fixed ssl_certificate.t with LibreSSL client.
Net::SSLeay::connect() that manages TLS handshake could return unexpected
error when receiving server alert, as seen in server certificate tests if
it could not been selected. Typically, it returns the expected error -1,
but with certain libssl implementations it can be 0, as explained below.
The error is propagated from libssl's SSL_connect(), which is usually -1.
In modern OpenSSL versions, it is the default error code used in the state
machine returned when something went wrong with parsing TLS message header.
In versions up to OpenSSL 1.0.2, with SSLv23_method() used by default, -1
is the only error code in the ssl_connect() method implementation which is
used as well if receiving alert while parsing ServerHello. BoringSSL also
seems to return -1. But it is not so with LibreSSL that returns zero.
Previously, tests failed with client built with LibreSSL with SSLv3 removed.
Here, the error is propagated directly from ssl_read_bytes() method, which
is always implemented as ssl3_read_bytes() in all TLS methods. It could be
also seen with OpenSSL up to 1.0.2 with non-default methods explicitly set.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Fri, 29 May 2020 23:10:20 +0300 |
parents | 51656beb9996 |
children | 4f238efded81 |
rev | line source |
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1 #!/usr/bin/perl |
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2 |
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3 # (C) Maxim Dounin |
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4 |
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5 # Tests for http proxy cache, "header already sent" alerts on backend errors, |
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6 # http://mailman.nginx.org/pipermail/nginx-devel/2018-January/010737.html. |
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7 |
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8 ############################################################################### |
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9 |
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10 use warnings; |
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11 use strict; |
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12 |
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13 use Test::More; |
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14 |
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15 BEGIN { use FindBin; chdir($FindBin::Bin); } |
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16 |
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17 use lib 'lib'; |
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18 use Test::Nginx; |
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19 |
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20 ############################################################################### |
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21 |
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22 select STDERR; $| = 1; |
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23 select STDOUT; $| = 1; |
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24 |
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25 my $t = Test::Nginx->new()->has(qw/http proxy cache/)->plan(1) |
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26 ->write_file_expand('nginx.conf', <<'EOF'); |
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27 |
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28 %%TEST_GLOBALS%% |
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29 |
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30 daemon off; |
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31 |
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32 events { |
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33 } |
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34 |
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35 http { |
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36 %%TEST_GLOBALS_HTTP%% |
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37 |
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38 proxy_cache_path %%TESTDIR%%/cache levels=1:2 |
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39 keys_zone=NAME:1m; |
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40 |
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41 server { |
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42 listen 127.0.0.1:8080; |
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43 server_name localhost; |
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44 |
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45 location / { |
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46 proxy_pass http://127.0.0.1:8081; |
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47 proxy_cache NAME; |
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48 |
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49 proxy_read_timeout 500ms; |
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50 } |
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51 } |
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52 |
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53 server { |
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54 listen 127.0.0.1:8081; |
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55 server_name localhost; |
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56 |
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57 location / { |
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58 postpone_output 0; |
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59 limit_rate 512; |
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60 expires 1m; |
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61 } |
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62 } |
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63 } |
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64 |
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65 EOF |
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66 |
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67 $t->write_file('big.html', 'x' x 1024); |
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68 |
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69 $t->run(); |
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70 |
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71 ############################################################################### |
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72 |
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73 # make a HEAD request; since cache is enabled, nginx converts HEAD to GET |
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74 # and will set u->pipe->downstream_error to suppress sending the response |
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75 # body to the client |
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76 |
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77 like(http_head('/big.html'), qr/200 OK/, 'head request'); |
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78 |
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79 # once proxy_read_timeout expires, nginx will call |
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80 # ngx_http_finalize_upstream_request() with u->pipe->downstream_error set |
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81 # and rc = NGX_HTTP_GATEWAY_BAD_GATEWAY; after revision ad3f342f14ba046c this |
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82 # will result in ngx_http_finalize_request(NGX_HTTP_GATEWAY_BAD_GATEWAY), |
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83 # leading to an attempt to return additional error response and |
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84 # the "header already sent" alert; fixed in 93abb5a855d6 |
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85 |
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86 ############################################################################### |