gecko-dev/netwerk/cache/nsApplicationCacheService.cpp

269 строки
8.1 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 "nsDiskCache.h"
#include "nsDiskCacheDeviceSQL.h"
#include "nsCacheService.h"
#include "nsApplicationCacheService.h"
#include "nsCRT.h"
#include "mozIApplicationClearPrivateDataParams.h"
#include "nsNetCID.h"
#include "nsNetUtil.h"
#include "nsIObserverService.h"
#include "nsIPrincipal.h"
#include "mozilla/LoadContextInfo.h"
using namespace mozilla;
static NS_DEFINE_CID(kCacheServiceCID, NS_CACHESERVICE_CID);
//-----------------------------------------------------------------------------
// nsApplicationCacheService
//-----------------------------------------------------------------------------
NS_IMPL_ISUPPORTS(nsApplicationCacheService, nsIApplicationCacheService)
nsApplicationCacheService::nsApplicationCacheService()
{
nsCOMPtr<nsICacheService> serv = do_GetService(kCacheServiceCID);
mCacheService = nsCacheService::GlobalInstance();
}
nsApplicationCacheService::~nsApplicationCacheService()
{
}
NS_IMETHODIMP
nsApplicationCacheService::BuildGroupIDForInfo(
nsIURI *aManifestURL,
nsILoadContextInfo *aLoadContextInfo,
nsACString &_result)
{
nsresult rv;
nsAutoCString originSuffix;
if (aLoadContextInfo) {
aLoadContextInfo->OriginAttributesPtr()->CreateSuffix(originSuffix);
}
rv = nsOfflineCacheDevice::BuildApplicationCacheGroupID(
aManifestURL, originSuffix, _result);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
nsApplicationCacheService::BuildGroupIDForSuffix(
nsIURI *aManifestURL,
nsACString const &aOriginSuffix,
nsACString &_result)
{
nsresult rv;
rv = nsOfflineCacheDevice::BuildApplicationCacheGroupID(
aManifestURL, aOriginSuffix, _result);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
nsApplicationCacheService::CreateApplicationCache(const nsACString &group,
nsIApplicationCache **out)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetOfflineDevice(getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
return device->CreateApplicationCache(group, out);
}
NS_IMETHODIMP
nsApplicationCacheService::CreateCustomApplicationCache(const nsACString & group,
nsIFile *profileDir,
int32_t quota,
nsIApplicationCache **out)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetCustomOfflineDevice(profileDir,
quota,
getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
return device->CreateApplicationCache(group, out);
}
NS_IMETHODIMP
nsApplicationCacheService::GetApplicationCache(const nsACString &clientID,
nsIApplicationCache **out)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetOfflineDevice(getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
return device->GetApplicationCache(clientID, out);
}
NS_IMETHODIMP
nsApplicationCacheService::GetActiveCache(const nsACString &group,
nsIApplicationCache **out)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetOfflineDevice(getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
return device->GetActiveCache(group, out);
}
NS_IMETHODIMP
nsApplicationCacheService::DeactivateGroup(const nsACString &group)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetOfflineDevice(getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
return device->DeactivateGroup(group);
}
NS_IMETHODIMP
nsApplicationCacheService::ChooseApplicationCache(const nsACString &key,
nsILoadContextInfo *aLoadContextInfo,
nsIApplicationCache **out)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetOfflineDevice(getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
return device->ChooseApplicationCache(key, aLoadContextInfo, out);
}
NS_IMETHODIMP
nsApplicationCacheService::CacheOpportunistically(nsIApplicationCache* cache,
const nsACString &key)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetOfflineDevice(getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
return device->CacheOpportunistically(cache, key);
}
NS_IMETHODIMP
nsApplicationCacheService::Evict(nsILoadContextInfo *aInfo)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetOfflineDevice(getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
return device->Evict(aInfo);
}
NS_IMETHODIMP
nsApplicationCacheService::EvictMatchingOriginAttributes(nsAString const &aPattern)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetOfflineDevice(getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
mozilla::OriginAttributesPattern pattern;
if (!pattern.Init(aPattern)) {
NS_ERROR("Could not parse OriginAttributesPattern JSON in clear-origin-data notification");
return NS_ERROR_FAILURE;
}
return device->Evict(pattern);
}
NS_IMETHODIMP
nsApplicationCacheService::GetGroups(uint32_t *count,
char ***keys)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetOfflineDevice(getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
return device->GetGroups(count, keys);
}
NS_IMETHODIMP
nsApplicationCacheService::GetGroupsTimeOrdered(uint32_t *count,
char ***keys)
{
if (!mCacheService)
return NS_ERROR_UNEXPECTED;
RefPtr<nsOfflineCacheDevice> device;
nsresult rv = mCacheService->GetOfflineDevice(getter_AddRefs(device));
NS_ENSURE_SUCCESS(rv, rv);
return device->GetGroupsTimeOrdered(count, keys);
}
//-----------------------------------------------------------------------------
// AppCacheClearDataObserver: handles clearing appcache data for app uninstall
// and clearing user data events.
//-----------------------------------------------------------------------------
namespace {
class AppCacheClearDataObserver final : public nsIObserver {
public:
NS_DECL_ISUPPORTS
// nsIObserver implementation.
NS_IMETHODIMP
Observe(nsISupports *aSubject, const char *aTopic, const char16_t *aData) override
{
MOZ_ASSERT(!nsCRT::strcmp(aTopic, "clear-origin-data"));
nsresult rv;
nsCOMPtr<nsIApplicationCacheService> cacheService =
do_GetService(NS_APPLICATIONCACHESERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
return cacheService->EvictMatchingOriginAttributes(nsDependentString(aData));
}
private:
~AppCacheClearDataObserver() {}
};
NS_IMPL_ISUPPORTS(AppCacheClearDataObserver, nsIObserver)
} // namespace
// Instantiates and registers AppCacheClearDataObserver for notifications
void
nsApplicationCacheService::AppClearDataObserverInit()
{
nsCOMPtr<nsIObserverService> observerService = services::GetObserverService();
if (observerService) {
RefPtr<AppCacheClearDataObserver> obs = new AppCacheClearDataObserver();
observerService->AddObserver(obs, "clear-origin-data", /*holdsWeak=*/ false);
}
}