Mercurial > hg > nginx-tests
annotate proxy_cache_vary.t @ 1999:15f538440a77 default tip
Tests: adjusted proxy_cache_use_stale.t cache validity.
At least the "s-w-r - updating stale" test sometimes fails on slow
hosts due to "stale-while-revalidate=4" being not enough, so the request
returns with the EXPIRED cache status instead of STALE.
Fix is to use larger "stale-while-revalidate=" times where it is not
significant.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Fri, 09 Aug 2024 18:37:25 +0300 |
parents | d329b05e20fa |
children |
rev | line source |
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471 | 1 #!/usr/bin/perl |
2 | |
3 # (C) Maxim Dounin | |
4 | |
5 # Tests for http proxy cache, the Vary header. | |
6 | |
7 ############################################################################### | |
8 | |
9 use warnings; | |
10 use strict; | |
11 | |
12 use Test::More; | |
13 | |
14 BEGIN { use FindBin; chdir($FindBin::Bin); } | |
15 | |
16 use lib 'lib'; | |
17 use Test::Nginx; | |
18 | |
19 ############################################################################### | |
20 | |
21 select STDERR; $| = 1; | |
22 select STDOUT; $| = 1; | |
23 | |
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24 my $t = Test::Nginx->new()->has(qw/http proxy cache gzip rewrite/) |
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25 ->plan(52)->write_file_expand('nginx.conf', <<'EOF'); |
471 | 26 |
27 %%TEST_GLOBALS%% | |
28 | |
29 daemon off; | |
30 | |
31 events { | |
32 } | |
33 | |
34 http { | |
35 %%TEST_GLOBALS_HTTP%% | |
36 | |
37 proxy_cache_path %%TESTDIR%%/cache keys_zone=one:1m inactive=5s; | |
38 proxy_cache_key $uri; | |
39 | |
40 server { | |
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41 listen 127.0.0.1:8080; |
471 | 42 server_name localhost; |
43 | |
44 add_header X-Cache-Status $upstream_cache_status; | |
45 | |
46 location / { | |
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47 proxy_pass http://127.0.0.1:8081/; |
471 | 48 proxy_cache one; |
49 } | |
50 | |
51 location /replace/ { | |
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52 proxy_pass http://127.0.0.1:8081/; |
471 | 53 proxy_cache one; |
54 } | |
55 | |
56 location /revalidate/ { | |
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57 proxy_pass http://127.0.0.1:8081/; |
471 | 58 proxy_cache one; |
59 proxy_cache_revalidate on; | |
60 } | |
61 | |
62 location /ignore/ { | |
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63 proxy_pass http://127.0.0.1:8081/; |
471 | 64 proxy_cache one; |
65 proxy_ignore_headers Vary; | |
66 } | |
67 } | |
68 | |
69 server { | |
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70 listen 127.0.0.1:8081; |
471 | 71 server_name localhost; |
72 | |
73 gzip on; | |
74 gzip_min_length 0; | |
75 gzip_http_version 1.0; | |
76 gzip_vary on; | |
77 | |
78 expires 2s; | |
79 | |
80 location / { | |
81 if ($args = "novary") { | |
82 return 200 "the only variant\n"; | |
83 } | |
84 } | |
85 | |
86 location /asterisk { | |
87 gzip off; | |
88 add_header Vary "*"; | |
89 } | |
90 | |
91 location /complex { | |
92 gzip off; | |
93 add_header Vary ",, Accept-encoding , ,"; | |
94 } | |
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95 |
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96 location /multi { |
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97 gzip off; |
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98 add_header Vary Accept-Encoding; |
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99 add_header Vary Foo; |
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100 } |
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101 |
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102 location /cold { |
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103 expires max; |
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104 add_header Vary $arg_vary; |
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105 add_header Xtra $arg_xtra; |
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106 } |
471 | 107 } |
108 } | |
109 | |
110 EOF | |
111 | |
112 $t->write_file('index.html', 'SEE-THIS'); | |
113 $t->write_file('asterisk', 'SEE-THIS'); | |
114 $t->write_file('complex', 'SEE-THIS'); | |
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115 $t->write_file('multi', 'SEE-THIS'); |
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116 $t->write_file('cold', 'SEE-THIS'); |
471 | 117 |
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118 $t->run(); |
471 | 119 |
120 ############################################################################### | |
121 | |
122 like(get('/', 'gzip'), qr/MISS/ms, 'first request'); | |
123 like(get('/', 'gzip'), qr/HIT/ms, 'vary match cached'); | |
124 like(get('/', 'deflate'), qr/MISS/ms, 'vary mismatch'); | |
125 like(get('/', 'deflate'), qr/HIT/ms, 'vary mismatch cached'); | |
126 like(get('/', 'foo'), qr/MISS/ms, 'vary mismatch 2'); | |
127 like(get('/', 'foo'), qr/HIT/ms, 'vary mismatch 2 cached'); | |
128 like(get('/', 'gzip'), qr/HIT/ms, 'multiple representations cached'); | |
129 | |
130 SKIP: { | |
131 skip 'long tests', 6 unless $ENV{TEST_NGINX_UNSAFE}; | |
132 | |
133 # make sure all variants are properly expire | |
134 # and removed after inactive timeout | |
135 | |
136 sleep(3); | |
137 | |
138 like(get('/', 'gzip'), qr/EXPIRED/ms, 'first expired'); | |
139 like(get('/', 'deflate'), qr/EXPIRED/ms, 'second variant expired'); | |
140 | |
141 like(get('/', 'gzip'), qr/HIT/ms, 'first cached after expire'); | |
142 like(get('/', 'deflate'), qr/HIT/ms, 'second cached after expire'); | |
143 | |
144 sleep(12); | |
145 | |
146 like(get('/', 'gzip'), qr/MISS/ms, 'first inactive removed'); | |
147 like(get('/', 'deflate'), qr/MISS/ms, 'second variant removed'); | |
148 | |
149 } | |
150 | |
151 SKIP: { | |
152 skip 'long tests', 6 unless $ENV{TEST_NGINX_UNSAFE}; | |
153 | |
154 # check if the variant which was loaded first will be properly | |
155 # removed if it's not requested (but another variant is requested | |
156 # at the same time) | |
157 | |
158 sleep(3); | |
159 like(get('/', 'deflate'), qr/EXPIRED/ms, 'bump1'); | |
160 sleep(3); | |
161 like(get('/', 'deflate'), qr/EXPIRED/ms, 'bump2'); | |
162 sleep(3); | |
163 like(get('/', 'deflate'), qr/EXPIRED/ms, 'bump3'); | |
164 sleep(3); | |
165 like(get('/', 'deflate'), qr/EXPIRED/ms, 'bump4'); | |
166 | |
167 TODO: { | |
168 local $TODO = 'not yet'; | |
169 | |
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170 like(get('/', 'gzip'), qr/MISS/ms, 'first not bumped by second requests'); |
471 | 171 |
172 } | |
173 | |
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174 like(get('/', 'deflate'), qr/HIT/ms, 'second variant cached'); |
471 | 175 |
176 } | |
177 | |
178 # if a response without Vary is returned to replace previously returned | |
179 # responses with Vary, make sure it is then used in all cases | |
180 | |
181 like(get('/replace/', 'gzip'), qr/MISS/, 'replace first'); | |
182 like(get('/replace/', 'deflate'), qr/MISS/, 'replace second'); | |
183 | |
184 sleep(3); | |
185 | |
186 like(get('/replace/?novary', 'deflate'), qr/EXPIRED/, 'replace novary'); | |
187 like(get('/replace/?zztest', 'gzip'), qr/HIT/, 'all replaced'); | |
188 | |
189 # make sure revalidation of variants works fine | |
190 | |
191 like(get('/revalidate/', 'gzip'), qr/MISS/, 'revalidate first'); | |
192 like(get('/revalidate/', 'deflate'), qr/MISS/, 'revalidate second'); | |
193 | |
194 sleep(3); | |
195 | |
196 like(get('/revalidate/', 'gzip'), qr/REVALIDATED/, 'revalidated first'); | |
197 like(get('/revalidate/', 'deflate'), qr/REVALIDATED/, 'revalidated second'); | |
198 like(get('/revalidate/', 'gzip'), qr/HIT/, 'revalidate first after'); | |
199 like(get('/revalidate/', 'deflate'), qr/HIT/, 'revalidate second after'); | |
200 | |
201 # if the Vary header is ignored, cached version can be returned | |
202 # regardless of request headers | |
203 | |
204 like(get('/ignore/', 'gzip'), qr/MISS/ms, 'another request'); | |
205 like(get('/ignore/', 'deflate'), qr/HIT/ms, 'vary ignored'); | |
206 | |
207 # check parsing of Vary with multiple headers listed | |
208 | |
209 like(get('/complex', 'gzip'), qr/MISS/ms, 'vary complex first'); | |
210 like(get('/complex', 'deflate'), qr/MISS/ms, 'vary complex second'); | |
211 like(get('/complex', 'gzip'), qr/HIT/ms, 'vary complex first cached'); | |
212 like(get('/complex', 'deflate'), qr/HIT/ms, 'vary complex second cached'); | |
213 | |
214 # From RFC 7231, "7.1.4. Vary", | |
215 # http://tools.ietf.org/html/rfc7231#section-7.1.4: | |
216 # | |
217 # A Vary field value of "*" signals that anything about the request | |
218 # might play a role in selecting the response representation, possibly | |
219 # including elements outside the message syntax (e.g., the client's | |
220 # network address). A recipient will not be able to determine whether | |
221 # this response is appropriate for a later request without forwarding | |
222 # the request to the origin server. | |
223 # | |
224 # In theory, If-None-Match can be used to check if the representation | |
225 # present in the cache is appropriate. This seems to be only possible | |
226 # with strong entity tags though, as representation with different | |
227 # content condings may share the same weak entity tag. | |
228 | |
229 like(get('/asterisk', 'gzip'), qr/MISS/ms, 'vary asterisk first'); | |
230 like(get('/asterisk', 'gzip'), qr/MISS/ms, 'vary asterisk second'); | |
231 | |
232 # From RFC 7234, "4.1. Calculating Secondary Keys with Vary", | |
233 # http://tools.ietf.org/html/rfc7234#section-4.1: | |
234 # | |
235 # The selecting header fields from two requests are defined to match if | |
236 # and only if those in the first request can be transformed to those in | |
237 # the second request by applying any of the following: | |
238 # | |
239 # o adding or removing whitespace, where allowed in the header field's | |
240 # syntax | |
507 | 241 # |
471 | 242 # o combining multiple header fields with the same field name (see |
243 # Section 3.2 of [RFC7230]) | |
507 | 244 # |
471 | 245 # o normalizing both header field values in a way that is known to |
246 # have identical semantics, according to the header field's | |
247 # specification (e.g., reordering field values when order is not | |
248 # significant; case-normalization, where values are defined to be | |
249 # case-insensitive) | |
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250 # |
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251 # Only whitespace normalization is currently implemented. |
471 | 252 |
253 like(get('/', 'foo, bar'), qr/MISS/ms, 'normalize first'); | |
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254 like(get('/', 'foo,bar'), qr/HIT/ms, 'normalize whitespace'); |
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255 like(get('/', 'foo,, ,bar , '), qr/HIT/ms, 'normalize empty'); |
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256 like(get('/', 'foobar'), qr/MISS/ms, 'normalize no whitespace mismatch'); |
471 | 257 |
258 TODO: { | |
259 local $TODO = 'not yet'; | |
260 | |
261 like(get('/', 'bar,foo'), qr/HIT/ms, 'normalize order'); | |
262 | |
263 } | |
264 | |
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265 # Multiple Vary headers (ticket #1423). |
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266 |
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267 like(get('/multi', 'foo'), qr/MISS/ms, 'multi first'); |
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268 like(get('/multi', 'foo'), qr/HIT/ms, 'multi second'); |
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269 like(get('/multi', 'bar'), qr/MISS/ms, 'multi other'); |
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270 |
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271 # keep c->body_start when Vary changes (ticket #2029) |
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272 |
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273 # before 1.19.3, this prevented updating c->body_start of a main key |
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274 # triggering "cache file .. has too long header" critical errors |
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275 |
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276 get1('/cold?vary=z', 'z:1'); |
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277 like(get1('/cold?vary=x,y', 'x:1'), qr/MISS/, 'change first'); |
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278 like(get1('/cold?vary=x,y', 'x:1'), qr/HIT/, 'change first cached'); |
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279 |
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280 like(get1('/cold?vary=x,y&xtra=1', 'x:2'), qr/MISS/, 'change second'); |
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281 like(get1('/cold?vary=x,y&xtra=1', 'x:2'), qr/HIT/, 'change second cached'); |
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282 |
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283 $t->stop(); |
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284 $t->run(); |
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285 |
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286 # reset c->body_start when loading a secondary key variant |
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287 |
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288 # before 1.19.3, it was loaded using a variant stored with a main key |
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289 # triggering "cache file .. has too long header" critical errors |
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290 |
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291 like(get1('/cold?vary=x,y', 'x:1'), qr/HIT/, 'cold first'); |
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292 like(get1('/cold?vary=x,y&xtra=1', 'x:2'), qr/HIT/, 'cold second'); |
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293 |
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294 $t->stop(); |
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295 |
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296 is($t->grep_file('error.log', '[crit]'), '', 'no crit'); |
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297 |
471 | 298 ############################################################################### |
299 | |
300 sub get { | |
301 my ($url, $extra) = @_; | |
302 return http(<<EOF); | |
303 GET $url HTTP/1.1 | |
304 Host: localhost | |
305 Connection: close | |
306 Accept-Encoding: $extra | |
307 | |
308 EOF | |
309 } | |
310 | |
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311 sub get1 { |
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312 my ($url, $extra) = @_; |
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313 return http(<<EOF); |
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314 GET $url HTTP/1.1 |
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315 Host: localhost |
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316 Connection: close |
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317 $extra |
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318 |
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319 EOF |
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320 } |
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321 |
471 | 322 ############################################################################### |