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Cache: disable caching of responses with Vary (ticket #118).

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The "proxy_ignore_header" directive now undersands the "Vary" parameter
to ignore the header as needed.
This commit is contained in:
Maxim Dounin 2014-10-27 21:13:39 +03:00
parent 97e618c556
commit fc785b12a0
2 changed files with 32 additions and 0 deletions
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30
src/http/ngx_http_upstream.c
View File

@ -113,6 +113,8 @@ static ngx_int_t ngx_http_upstream_process_connection(ngx_http_request_t *r,
static ngx_int_t
ngx_http_upstream_process_transfer_encoding(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t ngx_http_upstream_process_vary(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset);
static ngx_int_t
@ -250,6 +252,10 @@ ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = {
ngx_http_upstream_ignore_header_line, 0,
ngx_http_upstream_ignore_header_line, 0, 0 },
{ ngx_string("Vary"),
ngx_http_upstream_process_vary, 0,
ngx_http_upstream_copy_header_line, 0, 0 },
{ ngx_string("X-Powered-By"),
ngx_http_upstream_ignore_header_line, 0,
ngx_http_upstream_copy_header_line, 0, 0 },
@ -407,6 +413,7 @@ ngx_conf_bitmask_t ngx_http_upstream_ignore_headers_masks[] = {
{ ngx_string("Expires"), NGX_HTTP_UPSTREAM_IGN_EXPIRES },
{ ngx_string("Cache-Control"), NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL },
{ ngx_string("Set-Cookie"), NGX_HTTP_UPSTREAM_IGN_SET_COOKIE },
{ ngx_string("Vary"), NGX_HTTP_UPSTREAM_IGN_VARY },
{ ngx_null_string, 0 }
};
@ -4138,6 +4145,29 @@ ngx_http_upstream_process_transfer_encoding(ngx_http_request_t *r,
}
static ngx_int_t
ngx_http_upstream_process_vary(ngx_http_request_t *r,
ngx_table_elt_t *h, ngx_uint_t offset)
{
ngx_http_upstream_t *u;
u = r->upstream;
u->headers_in.vary = h;
#if (NGX_HTTP_CACHE)
if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_VARY) {
return NGX_OK;
}
u->cacheable = 0;
#endif
return NGX_OK;
}
static ngx_int_t
ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
ngx_uint_t offset)

2
src/http/ngx_http_upstream.h
View File

@ -50,6 +50,7 @@
#define NGX_HTTP_UPSTREAM_IGN_XA_LIMIT_RATE 0x00000040
#define NGX_HTTP_UPSTREAM_IGN_XA_BUFFERING 0x00000080
#define NGX_HTTP_UPSTREAM_IGN_XA_CHARSET 0x00000100
#define NGX_HTTP_UPSTREAM_IGN_VARY 0x00000200
typedef struct {
@ -244,6 +245,7 @@ typedef struct {
ngx_table_elt_t *accept_ranges;
ngx_table_elt_t *www_authenticate;
ngx_table_elt_t *transfer_encoding;
ngx_table_elt_t *vary;
#if (NGX_HTTP_GZIP)
ngx_table_elt_t *content_encoding;