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Code Issues Releases Wiki Activity

etag: send cache-control even so

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This commit is contained in:
Andy Green 2018-08-13 16:49:58 +08:00
parent b7e05ad590
commit c3def0e527
1 changed files with 32 additions and 5 deletions
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37
lib/roles/http/server/server.c
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@ -28,6 +28,8 @@ const char * const method_names[] = {
#endif
};
static const char * const intermediates[] = { "private", "public" };
/*
* return 0: all done
* 1: nonfatal error
@ -567,6 +569,9 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
if (!strcmp(sym, lws_hdr_simple_ptr(wsi,
WSI_TOKEN_HTTP_IF_NONE_MATCH))) {
char cache_control[50], *cc = "no-store";
int cclen = 8;
lwsl_debug("%s: ETAG match %s %s\n", __func__,
uri, origin);
@ -580,6 +585,26 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
(unsigned char *)sym, n, &p, end))
return -1;
/* but we still need to send cache control... */
if (m && m->cache_max_age && m->cache_reusable) {
if (!m->cache_revalidate) {
cc = cache_control;
cclen = sprintf(cache_control, "%s, max-age=%u",
intermediates[wsi->cache_intermediaries],
m->cache_max_age);
} else {
cc = cache_control;
cclen = sprintf(cache_control, "must-revalidate, %s, max-age=%u",
intermediates[wsi->cache_intermediaries],
m->cache_max_age);
}
}
if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_CACHE_CONTROL,
(unsigned char *)cc, cclen, &p, end))
return -1;
if (lws_finalize_http_header(wsi, &p, end))
return -1;
@ -1815,7 +1840,6 @@ LWS_VISIBLE int
lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
const char *other_headers, int other_headers_len)
{
static const char * const intermediates[] = { "private", "public" };
struct lws_context *context = lws_get_context(wsi);
struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
#if defined(LWS_WITH_RANGES)
@ -1994,14 +2018,17 @@ lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
}
if (wsi->cache_secs && wsi->cache_reuse) {
if (wsi->cache_revalidate) {
if (!wsi->cache_revalidate) {
cc = cache_control;
cclen = sprintf(cache_control, "%s max-age: %u",
cclen = sprintf(cache_control, "%s, max-age=%u",
intermediates[wsi->cache_intermediaries],
wsi->cache_secs);
} else {
cc = "no-cache";
cclen = 8;
cc = cache_control;
cclen = sprintf(cache_control, "must-revalidate, %s, max-age=%u",
intermediates[wsi->cache_intermediaries],
wsi->cache_secs);
}
}