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Add 'UR_FLAG_DISABLE_CACHE' and support for equivalent 'Cache-Control: no-store' (issue #2283)

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This commit is contained in:
Felix Bruns
2019-03-07 22:05:36 +00:00
committed by Marshall Greenblatt
parent 602c163127
commit 4cbcb4615a
3 changed files with 239 additions and 47 deletions
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21
libcef/common/request_impl.cc
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@@ -48,11 +48,13 @@ const char kReferrerLowerCase[] = "referer";
const char kContentTypeLowerCase[] = "content-type";
const char kCacheControlLowerCase[] = "cache-control";
const char kCacheControlDirectiveNoCacheLowerCase[] = "no-cache";
const char kCacheControlDirectiveNoStoreLowerCase[] = "no-store";
const char kCacheControlDirectiveOnlyIfCachedLowerCase[] = "only-if-cached";
const char kApplicationFormURLEncoded[] = "application/x-www-form-urlencoded";
// Mask of values that configure the cache policy.
const int kURCachePolicyMask = (UR_FLAG_SKIP_CACHE | UR_FLAG_ONLY_FROM_CACHE);
const int kURCachePolicyMask =
(UR_FLAG_SKIP_CACHE | UR_FLAG_ONLY_FROM_CACHE | UR_FLAG_DISABLE_CACHE);
// A subclass of net::UploadBytesElementReader that keeps the associated
// UploadElement alive until the request completes.
@@ -142,6 +144,9 @@ int GetCacheControlHeaderPolicy(CefRequest::HeaderMap headerMap) {
} else if (base::LowerCaseEqualsASCII(
piece, kCacheControlDirectiveOnlyIfCachedLowerCase)) {
flags |= UR_FLAG_ONLY_FROM_CACHE;
} else if (base::LowerCaseEqualsASCII(
piece, kCacheControlDirectiveNoStoreLowerCase)) {
flags |= UR_FLAG_DISABLE_CACHE;
}
}
}
@@ -151,12 +156,17 @@ int GetCacheControlHeaderPolicy(CefRequest::HeaderMap headerMap) {
// Convert cef_urlrequest_flags_t to blink::WebCachePolicy.
blink::mojom::FetchCacheMode GetFetchCacheMode(int ur_flags) {
if ((ur_flags & kURCachePolicyMask) == kURCachePolicyMask) {
const bool skip_cache{ur_flags & UR_FLAG_SKIP_CACHE};
const bool only_from_cache{ur_flags & UR_FLAG_ONLY_FROM_CACHE};
const bool disable_cache{ur_flags & UR_FLAG_DISABLE_CACHE};
if (only_from_cache && (skip_cache || disable_cache)) {
return blink::mojom::FetchCacheMode::kUnspecifiedForceCacheMiss;
} else if (ur_flags & UR_FLAG_SKIP_CACHE) {
} else if (skip_cache) {
return blink::mojom::FetchCacheMode::kBypassCache;
} else if (ur_flags & UR_FLAG_ONLY_FROM_CACHE) {
} else if (only_from_cache) {
return blink::mojom::FetchCacheMode::kOnlyIfCached;
} else if (disable_cache) {
return blink::mojom::FetchCacheMode::kNoStore;
}
return blink::mojom::FetchCacheMode::kDefault;
}
@@ -756,6 +766,9 @@ void CefRequestImpl::Get(net::URLFetcher& fetcher,
if (flags & UR_FLAG_ONLY_FROM_CACHE) {
net_flags |= net::LOAD_ONLY_FROM_CACHE | net::LOAD_SKIP_CACHE_VALIDATION;
}
if (flags & UR_FLAG_DISABLE_CACHE) {
net_flags |= net::LOAD_DISABLE_CACHE;
}
if (!(flags & UR_FLAG_ALLOW_STORED_CREDENTIALS)) {
net_flags |= net::LOAD_DO_NOT_SEND_AUTH_DATA |