Mercurial > hg > nginx
annotate src/core/ngx_sha1.h @ 9306:e46e1ea89ccd default tip
Upstream: $upstream_cache_age variable.
The variable reflects response age, including the time spent in the
cache and the upstream response age as obtained from the "Age" header.
If the response wasn't cached, the variable reflects the "Age" header
of the upstream response.
If the intended use case is to cache responses as per HTTP/1.1 caching
model, the $upstream_cache_age variable can be used to provide the "Age"
header with the "add_header" directive, such as:
add_header Age $upstream_cache_age;
This now removes the "Age" header if it was present.
Further, the "expires" directives now removes the "Age" header if it
was present in the response, as the "expires" directive assumes zero
age when it adds "Expires" and "Cache-Control" headers.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 18 Jul 2024 19:39:45 +0300 |
parents | 9eefb38f0005 |
children |
rev | line source |
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1573 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
1573 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_SHA1_H_INCLUDED_ | |
9 #define _NGX_SHA1_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 | |
15 | |
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An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
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16 typedef struct { |
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17 uint64_t bytes; |
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18 uint32_t a, b, c, d, e, f; |
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19 u_char buffer[64]; |
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Maxim Dounin <mdounin@mdounin.ru>
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20 } ngx_sha1_t; |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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21 |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
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22 |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
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23 void ngx_sha1_init(ngx_sha1_t *ctx); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
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24 void ngx_sha1_update(ngx_sha1_t *ctx, const void *data, size_t size); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
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25 void ngx_sha1_final(u_char result[20], ngx_sha1_t *ctx); |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
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26 |
1064ea81ed3a
An internal SHA1 implementation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
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27 |
1573 | 28 #endif /* _NGX_SHA1_H_INCLUDED_ */ |