gecko-dev/netwerk/cache2/AppCacheStorage.cpp

171 строка
5.1 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "CacheLog.h"
#include "AppCacheStorage.h"
#include "CacheStorageService.h"
#include "OldWrappers.h"
#include "nsICacheEntryDoomCallback.h"
#include "nsCacheService.h"
#include "nsIApplicationCache.h"
#include "nsIApplicationCacheService.h"
#include "nsIURI.h"
#include "nsNetCID.h"
#include "nsNetUtil.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
namespace mozilla::net {
AppCacheStorage::AppCacheStorage(nsILoadContextInfo* aInfo,
nsIApplicationCache* aAppCache)
: CacheStorage(aInfo, true /* disk */, false /* lookup app cache */,
false /* skip size check */, false /* pin */),
mAppCache(aAppCache) {}
AppCacheStorage::~AppCacheStorage() {
ProxyReleaseMainThread("AppCacheStorage::mAppCache", mAppCache);
}
NS_IMETHODIMP AppCacheStorage::AsyncOpenURI(
nsIURI* aURI, const nsACString& aIdExtension, uint32_t aFlags,
nsICacheEntryOpenCallback* aCallback) {
if (!CacheStorageService::Self()) return NS_ERROR_NOT_INITIALIZED;
NS_ENSURE_ARG(aURI);
NS_ENSURE_ARG(aCallback);
nsresult rv;
nsCOMPtr<nsIApplicationCache> appCache = mAppCache;
if (!appCache) {
rv = ChooseApplicationCache(aURI, getter_AddRefs(appCache));
NS_ENSURE_SUCCESS(rv, rv);
}
if (!appCache) {
LOG(
("AppCacheStorage::AsyncOpenURI entry not found in any appcache, "
"giving up"));
aCallback->OnCacheEntryAvailable(nullptr, false, nullptr,
NS_ERROR_CACHE_KEY_NOT_FOUND);
return NS_OK;
}
nsCOMPtr<nsIURI> noRefURI;
rv = NS_GetURIWithoutRef(aURI, getter_AddRefs(noRefURI));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString cacheKey;
rv = noRefURI->GetAsciiSpec(cacheKey);
NS_ENSURE_SUCCESS(rv, rv);
// This is the only way how to recognize appcache data by the anonymous
// flag. There is no way to switch to e.g. a different session, because
// there is just a single session for an appcache version (identified
// by the client id).
if (LoadInfo()->IsAnonymous()) {
cacheKey = NS_LITERAL_CSTRING("anon&") + cacheKey;
}
nsAutoCString scheme;
rv = noRefURI->GetScheme(scheme);
NS_ENSURE_SUCCESS(rv, rv);
RefPtr<_OldCacheLoad> appCacheLoad = new _OldCacheLoad(
scheme, cacheKey, aCallback, appCache, LoadInfo(), WriteToDisk(), aFlags);
rv = appCacheLoad->Start();
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP AppCacheStorage::OpenTruncate(nsIURI* aURI,
const nsACString& aIdExtension,
nsICacheEntry** aCacheEntry) {
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP AppCacheStorage::Exists(nsIURI* aURI,
const nsACString& aIdExtension,
bool* aResult) {
*aResult = false;
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP AppCacheStorage::AsyncDoomURI(
nsIURI* aURI, const nsACString& aIdExtension,
nsICacheEntryDoomCallback* aCallback) {
if (!CacheStorageService::Self()) return NS_ERROR_NOT_INITIALIZED;
if (!mAppCache) {
return NS_ERROR_NOT_AVAILABLE;
}
RefPtr<_OldStorage> old = new _OldStorage(LoadInfo(), WriteToDisk(),
LookupAppCache(), true, mAppCache);
return old->AsyncDoomURI(aURI, aIdExtension, aCallback);
}
NS_IMETHODIMP AppCacheStorage::AsyncEvictStorage(
nsICacheEntryDoomCallback* aCallback) {
if (!CacheStorageService::Self()) return NS_ERROR_NOT_INITIALIZED;
nsresult rv;
if (!mAppCache) {
// Discard everything under this storage context
nsCOMPtr<nsIApplicationCacheService> appCacheService =
do_GetService(NS_APPLICATIONCACHESERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = appCacheService->Evict(LoadInfo());
NS_ENSURE_SUCCESS(rv, rv);
} else {
// Discard the group
RefPtr<_OldStorage> old = new _OldStorage(
LoadInfo(), WriteToDisk(), LookupAppCache(), true, mAppCache);
rv = old->AsyncEvictStorage(aCallback);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
if (aCallback) aCallback->OnCacheEntryDoomed(NS_OK);
return NS_OK;
}
NS_IMETHODIMP AppCacheStorage::AsyncVisitStorage(
nsICacheStorageVisitor* aVisitor, bool aVisitEntries) {
if (!CacheStorageService::Self()) return NS_ERROR_NOT_INITIALIZED;
LOG(("AppCacheStorage::AsyncVisitStorage [this=%p, cb=%p]", this, aVisitor));
nsresult rv;
nsCOMPtr<nsICacheService> serv =
do_GetService(NS_CACHESERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
RefPtr<_OldVisitCallbackWrapper> cb = new _OldVisitCallbackWrapper(
"offline", aVisitor, aVisitEntries, LoadInfo());
rv = nsCacheService::GlobalInstance()->VisitEntriesInternal(cb);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP AppCacheStorage::GetCacheIndexEntryAttrs(
nsIURI* aURI, const nsACString& aIdExtension, bool* aHasAltData,
uint32_t* aSizeInKB) {
return NS_ERROR_NOT_IMPLEMENTED;
}
} // namespace mozilla::net