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support Expires in cache

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This commit is contained in:
Igor Sysoev 2009-04-03 15:48:19 +00:00
parent b2120fed34
commit 35df6891f0
1 changed files with 32 additions and 2 deletions
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34
src/http/ngx_http_upstream.c
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@ -74,6 +74,8 @@ static ngx_int_t
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t ngx_http_upstream_process_expires(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t ngx_http_upstream_process_accel_expires(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r,
@ -192,8 +194,7 @@ ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = {
offsetof(ngx_http_headers_out_t, cache_control), 1 },
{ ngx_string("Expires"),
ngx_http_upstream_process_header_line,
offsetof(ngx_http_upstream_headers_in_t, expires),
ngx_http_upstream_process_expires, 0,
ngx_http_upstream_copy_header_line,
offsetof(ngx_http_headers_out_t, expires), 1 },
@ -2838,6 +2839,35 @@ ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
}
static ngx_int_t
ngx_http_upstream_process_expires(ngx_http_request_t *r, ngx_table_elt_t *h,
ngx_uint_t offset)
{
time_t expires;
r->upstream->headers_in.expires = h;
if (r->cache == NULL) {
return NGX_OK;
}
if (r->cache->valid_sec != 0) {
return NGX_OK;
}
expires = ngx_http_parse_time(h->value.data, h->value.len);
if (expires == NGX_ERROR || expires < ngx_time()) {
r->upstream->cacheable = 0;
return NGX_OK;
}
r->cache->valid_sec = expires;
return NGX_OK;
}
static ngx_int_t
ngx_http_upstream_process_accel_expires(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset)