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do not pass if-... headers for cacheable fastcgi responses

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This commit is contained in:
Igor Sysoev 2010-06-04 09:17:09 +00:00
parent ca9259c0a5
commit e5d453228e
1 changed files with 63 additions and 0 deletions
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63
src/http/modules/ngx_http_fastcgi_module.c
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@ -536,6 +536,17 @@ static ngx_str_t ngx_http_fastcgi_hide_cache_headers[] = {
ngx_null_string
};
static ngx_keyval_t ngx_http_fastcgi_cache_headers[] = {
{ ngx_string("HTTP_IF_MODIFIED_SINCE"), ngx_string("") },
{ ngx_string("HTTP_IF_UNMODIFIED_SINCE"), ngx_string("") },
{ ngx_string("HTTP_IF_NONE_MATCH"), ngx_string("") },
{ ngx_string("HTTP_IF_MATCH"), ngx_string("") },
{ ngx_string("HTTP_RANGE"), ngx_string("") },
{ ngx_string("HTTP_IF_RANGE"), ngx_string("") },
{ ngx_null_string, ngx_null_string }
};
#endif
@ -2287,9 +2298,30 @@ ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
conf->params_source = prev->params_source;
conf->headers_hash = prev->headers_hash;
#if (NGX_HTTP_CACHE)
if (conf->params_source == NULL) {
if ((conf->upstream.cache == NULL)
== (prev->upstream.cache == NULL))
{
return NGX_CONF_OK;
}
/* 6 is a number of ngx_http_fastcgi_cache_headers entries */
conf->params_source = ngx_array_create(cf->pool, 6,
sizeof(ngx_keyval_t));
if (conf->params_source == NULL) {
return NGX_CONF_ERROR;
}
}
#else
if (conf->params_source == NULL) {
return NGX_CONF_OK;
}
#endif
}
conf->params_len = ngx_array_create(cf->pool, 64, 1);
@ -2309,6 +2341,37 @@ ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
}
src = conf->params_source->elts;
#if (NGX_HTTP_CACHE)
if (conf->upstream.cache) {
ngx_keyval_t *h, *s;
for (h = ngx_http_fastcgi_cache_headers; h->key.len; h++) {
for (i = 0; i < conf->params_source->nelts; i++) {
if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) {
goto next;
}
}
s = ngx_array_push(conf->params_source);
if (s == NULL) {
return NGX_CONF_ERROR;
}
*s = *h;
src = conf->params_source->elts;
next:
h++;
}
}
#endif
for (i = 0; i < conf->params_source->nelts; i++) {
if (src[i].key.len > sizeof("HTTP_") - 1