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/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "OfflineCacheUpdateGlue.h"
#include "nsOfflineCacheUpdate.h"
#include "mozilla/Services.h"
#include "nsIApplicationCache.h"
#include "nsIApplicationCacheChannel.h"
#include "nsIApplicationCacheContainer.h"
#include "nsIChannel.h"
#include "nsIDocument.h"
#include "mozilla/Logging.h"
//
// To enable logging (see mozilla/Logging.h for full details):
//
// set MOZ_LOG=nsOfflineCacheUpdate:5
// set MOZ_LOG_FILE=offlineupdate.log
//
// this enables LogLevel::Info level information and places all output in
// the file offlineupdate.log
//
extern mozilla::LazyLogModule gOfflineCacheUpdateLog;
#undef LOG
#define LOG(args) MOZ_LOG(gOfflineCacheUpdateLog, mozilla::LogLevel::Debug, args)
#undef LOG_ENABLED
#define LOG_ENABLED() MOZ_LOG_TEST(gOfflineCacheUpdateLog, mozilla::LogLevel::Debug)
namespace mozilla {
namespace docshell {
//-----------------------------------------------------------------------------
// OfflineCacheUpdateGlue::nsISupports
//-----------------------------------------------------------------------------
NS_IMPL_ISUPPORTS(OfflineCacheUpdateGlue,
nsIOfflineCacheUpdate,
nsIOfflineCacheUpdateObserver,
nsISupportsWeakReference)
//-----------------------------------------------------------------------------
// OfflineCacheUpdateGlue <public>
//-----------------------------------------------------------------------------
OfflineCacheUpdateGlue::OfflineCacheUpdateGlue()
: mCoalesced(false)
{
LOG(("OfflineCacheUpdateGlue::OfflineCacheUpdateGlue [%p]", this));
}
OfflineCacheUpdateGlue::~OfflineCacheUpdateGlue()
{
LOG(("OfflineCacheUpdateGlue::~OfflineCacheUpdateGlue [%p]", this));
}
nsIOfflineCacheUpdate*
OfflineCacheUpdateGlue::EnsureUpdate()
{
if (!mUpdate) {
mUpdate = new nsOfflineCacheUpdate();
LOG(("OfflineCacheUpdateGlue [%p] is using update [%p]", this, mUpdate.get()));
}
return mUpdate;
}
NS_IMETHODIMP
OfflineCacheUpdateGlue::Schedule()
{
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (observerService) {
LOG(("Calling offline-cache-update-added"));
observerService->NotifyObservers(static_cast<nsIOfflineCacheUpdate*>(this),
"offline-cache-update-added",
nullptr);
LOG(("Done offline-cache-update-added"));
}
if (!EnsureUpdate())
return NS_ERROR_NULL_POINTER;
// Do not use weak reference, we must survive!
mUpdate->AddObserver(this, false);
if (mCoalesced) // already scheduled
return NS_OK;
return mUpdate->Schedule();
}
NS_IMETHODIMP
OfflineCacheUpdateGlue::Init(nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsIPrincipal* aLoadingPrincipal,
nsIDOMDocument *aDocument,
nsIFile *aCustomProfileDir)
{
nsresult rv;
nsAutoCString originSuffix;
rv = aLoadingPrincipal->GetOriginSuffix(originSuffix);
NS_ENSURE_SUCCESS(rv, rv);
nsOfflineCacheUpdateService* service =
nsOfflineCacheUpdateService::EnsureService();
if (service) {
service->FindUpdate(aManifestURI, originSuffix, aCustomProfileDir,
getter_AddRefs(mUpdate));
mCoalesced = !!mUpdate;
}
if (!EnsureUpdate())
return NS_ERROR_NULL_POINTER;
mDocumentURI = aDocumentURI;
mLoadingPrincipal = aLoadingPrincipal;
if (aDocument)
SetDocument(aDocument);
if (mCoalesced) { // already initialized
LOG(("OfflineCacheUpdateGlue %p coalesced with update %p", this, mUpdate.get()));
return NS_OK;
}
return mUpdate->Init(aManifestURI, aDocumentURI, aLoadingPrincipal, nullptr,
aCustomProfileDir);
}
void
OfflineCacheUpdateGlue::SetDocument(nsIDOMDocument *aDocument)
{
// The design is one document for one cache update on the content process.
NS_ASSERTION(!mDocument,
"Setting more then a single document on an instance of OfflineCacheUpdateGlue");
LOG(("Document %p added to update glue %p", aDocument, this));
// Add document only if it was not loaded from an offline cache.
// If it were loaded from an offline cache then it has already
// been associated with it and must not be again cached as
// implicit (which are the reasons we collect documents here).
nsCOMPtr<nsIDocument> document = do_QueryInterface(aDocument);
if (!document)
return;
nsIChannel* channel = document->GetChannel();
nsCOMPtr<nsIApplicationCacheChannel> appCacheChannel =
do_QueryInterface(channel);
if (!appCacheChannel)
return;
bool loadedFromAppCache;
appCacheChannel->GetLoadedFromApplicationCache(&loadedFromAppCache);
if (loadedFromAppCache)
return;
if (EnsureUpdate()) {
mUpdate->StickDocument(mDocumentURI);
}
mDocument = aDocument;
}
NS_IMETHODIMP
OfflineCacheUpdateGlue::UpdateStateChanged(nsIOfflineCacheUpdate *aUpdate, uint32_t state)
{
if (state == nsIOfflineCacheUpdateObserver::STATE_FINISHED) {
LOG(("OfflineCacheUpdateGlue got STATE_FINISHED [%p]", this));
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (observerService) {
LOG(("Calling offline-cache-update-completed"));
observerService->NotifyObservers(static_cast<nsIOfflineCacheUpdate*>(this),
"offline-cache-update-completed",
nullptr);
LOG(("Done offline-cache-update-completed"));
}
aUpdate->RemoveObserver(this);
}
return NS_OK;
}
NS_IMETHODIMP
OfflineCacheUpdateGlue::ApplicationCacheAvailable(nsIApplicationCache *aApplicationCache)
{
NS_ENSURE_ARG(aApplicationCache);
// Check that the document that requested this update was
// previously associated with an application cache. If not, it
// should be associated with the new one.
nsCOMPtr<nsIApplicationCacheContainer> container =
do_QueryInterface(mDocument);
if (!container)
return NS_OK;
nsCOMPtr<nsIApplicationCache> existingCache;
nsresult rv = container->GetApplicationCache(getter_AddRefs(existingCache));
NS_ENSURE_SUCCESS(rv, rv);
if (!existingCache) {
if (LOG_ENABLED()) {
nsAutoCString clientID;
if (aApplicationCache) {
aApplicationCache->GetClientID(clientID);
}
LOG(("Update %p: associating app cache %s to document %p",
this, clientID.get(), mDocument.get()));
}
rv = container->SetApplicationCache(aApplicationCache);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
} // namespace docshell
} // namespace mozilla
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