gecko/uriloader/prefetch/nsOfflineCacheUpdateService.cpp

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/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Mozilla Corporation
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dave Camp <dcamp@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "OfflineCacheUpdateChild.h"
#include "OfflineCacheUpdateParent.h"
#include "nsXULAppAPI.h"
#include "OfflineCacheUpdateGlue.h"
#include "nsOfflineCacheUpdate.h"
#include "nsCPrefetchService.h"
#include "nsCURILoader.h"
#include "nsIApplicationCacheContainer.h"
#include "nsIApplicationCacheChannel.h"
#include "nsIApplicationCacheService.h"
#include "nsICache.h"
#include "nsICacheService.h"
#include "nsICacheSession.h"
#include "nsICachingChannel.h"
#include "nsIContent.h"
#include "nsIDocumentLoader.h"
#include "nsIDOMElement.h"
#include "nsIDOMWindow.h"
#include "nsIDOMOfflineResourceList.h"
#include "nsIDocument.h"
#include "nsIObserverService.h"
#include "nsIURL.h"
#include "nsIWebProgress.h"
#include "nsICryptoHash.h"
#include "nsICacheEntryDescriptor.h"
#include "nsIPermissionManager.h"
#include "nsIPrincipal.h"
#include "nsNetCID.h"
#include "nsNetUtil.h"
#include "nsServiceManagerUtils.h"
#include "nsStreamUtils.h"
#include "nsThreadUtils.h"
#include "nsProxyRelease.h"
#include "prlog.h"
#include "nsIAsyncVerifyRedirectCallback.h"
#include "mozilla/Preferences.h"
using namespace mozilla;
static nsOfflineCacheUpdateService *gOfflineCacheUpdateService = nsnull;
typedef mozilla::docshell::OfflineCacheUpdateParent OfflineCacheUpdateParent;
typedef mozilla::docshell::OfflineCacheUpdateChild OfflineCacheUpdateChild;
typedef mozilla::docshell::OfflineCacheUpdateGlue OfflineCacheUpdateGlue;
#if defined(PR_LOGGING)
//
// To enable logging (see prlog.h for full details):
//
// set NSPR_LOG_MODULES=nsOfflineCacheUpdate:5
// set NSPR_LOG_FILE=offlineupdate.log
//
// this enables PR_LOG_ALWAYS level information and places all output in
// the file offlineupdate.log
//
PRLogModuleInfo *gOfflineCacheUpdateLog;
#endif
#define LOG(args) PR_LOG(gOfflineCacheUpdateLog, 4, args)
#define LOG_ENABLED() PR_LOG_TEST(gOfflineCacheUpdateLog, 4)
class AutoFreeArray {
public:
AutoFreeArray(PRUint32 count, char **values)
: mCount(count), mValues(values) {};
~AutoFreeArray() { NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(mCount, mValues); }
private:
PRUint32 mCount;
char **mValues;
};
//-----------------------------------------------------------------------------
// nsOfflineCachePendingUpdate
//-----------------------------------------------------------------------------
class nsOfflineCachePendingUpdate : public nsIWebProgressListener
, public nsSupportsWeakReference
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIWEBPROGRESSLISTENER
nsOfflineCachePendingUpdate(nsOfflineCacheUpdateService *aService,
nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsIDOMDocument *aDocument)
: mService(aService)
, mManifestURI(aManifestURI)
, mDocumentURI(aDocumentURI)
{
mDocument = do_GetWeakReference(aDocument);
}
private:
nsRefPtr<nsOfflineCacheUpdateService> mService;
nsCOMPtr<nsIURI> mManifestURI;
nsCOMPtr<nsIURI> mDocumentURI;
nsCOMPtr<nsIWeakReference> mDocument;
};
NS_IMPL_ISUPPORTS2(nsOfflineCachePendingUpdate,
nsIWebProgressListener,
nsISupportsWeakReference)
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService::nsIWebProgressListener
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsOfflineCachePendingUpdate::OnProgressChange(nsIWebProgress *aProgress,
nsIRequest *aRequest,
PRInt32 curSelfProgress,
PRInt32 maxSelfProgress,
PRInt32 curTotalProgress,
PRInt32 maxTotalProgress)
{
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCachePendingUpdate::OnStateChange(nsIWebProgress* aWebProgress,
nsIRequest *aRequest,
PRUint32 progressStateFlags,
nsresult aStatus)
{
nsCOMPtr<nsIDOMDocument> updateDoc = do_QueryReferent(mDocument);
if (!updateDoc) {
// The document that scheduled this update has gone away,
// we don't need to listen anymore.
aWebProgress->RemoveProgressListener(this);
NS_RELEASE_THIS();
return NS_OK;
}
if (!(progressStateFlags & STATE_STOP)) {
return NS_OK;
}
nsCOMPtr<nsIDOMWindow> window;
aWebProgress->GetDOMWindow(getter_AddRefs(window));
if (!window) return NS_OK;
nsCOMPtr<nsIDOMDocument> progressDoc;
window->GetDocument(getter_AddRefs(progressDoc));
if (!progressDoc) return NS_OK;
if (!SameCOMIdentity(progressDoc, updateDoc)) {
return NS_OK;
}
LOG(("nsOfflineCachePendingUpdate::OnStateChange [%p, doc=%p]",
this, progressDoc.get()));
// Only schedule the update if the document loaded successfully
if (NS_SUCCEEDED(aStatus)) {
nsCOMPtr<nsIOfflineCacheUpdate> update;
mService->Schedule(mManifestURI, mDocumentURI,
updateDoc, window, getter_AddRefs(update));
}
aWebProgress->RemoveProgressListener(this);
NS_RELEASE_THIS();
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCachePendingUpdate::OnLocationChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsIURI *location)
{
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCachePendingUpdate::OnStatusChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsresult aStatus,
const PRUnichar* aMessage)
{
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCachePendingUpdate::OnSecurityChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest,
PRUint32 state)
{
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService::nsISupports
//-----------------------------------------------------------------------------
NS_IMPL_ISUPPORTS3(nsOfflineCacheUpdateService,
nsIOfflineCacheUpdateService,
nsIObserver,
nsISupportsWeakReference)
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService <public>
//-----------------------------------------------------------------------------
nsOfflineCacheUpdateService::nsOfflineCacheUpdateService()
: mDisabled(PR_FALSE)
, mUpdateRunning(PR_FALSE)
{
}
nsOfflineCacheUpdateService::~nsOfflineCacheUpdateService()
{
gOfflineCacheUpdateService = nsnull;
}
nsresult
nsOfflineCacheUpdateService::Init()
{
#if defined(PR_LOGGING)
if (!gOfflineCacheUpdateLog)
gOfflineCacheUpdateLog = PR_NewLogModule("nsOfflineCacheUpdate");
#endif
// Observe xpcom-shutdown event
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (!observerService)
return NS_ERROR_FAILURE;
nsresult rv = observerService->AddObserver(this,
NS_XPCOM_SHUTDOWN_OBSERVER_ID,
PR_TRUE);
NS_ENSURE_SUCCESS(rv, rv);
gOfflineCacheUpdateService = this;
return NS_OK;
}
/* static */
nsOfflineCacheUpdateService *
nsOfflineCacheUpdateService::GetInstance()
{
if (!gOfflineCacheUpdateService) {
gOfflineCacheUpdateService = new nsOfflineCacheUpdateService();
if (!gOfflineCacheUpdateService)
return nsnull;
NS_ADDREF(gOfflineCacheUpdateService);
nsresult rv = gOfflineCacheUpdateService->Init();
if (NS_FAILED(rv)) {
NS_RELEASE(gOfflineCacheUpdateService);
return nsnull;
}
return gOfflineCacheUpdateService;
}
NS_ADDREF(gOfflineCacheUpdateService);
return gOfflineCacheUpdateService;
}
/* static */
nsOfflineCacheUpdateService *
nsOfflineCacheUpdateService::EnsureService()
{
if (!gOfflineCacheUpdateService) {
// Make the service manager hold a long-lived reference to the service
nsCOMPtr<nsIOfflineCacheUpdateService> service =
do_GetService(NS_OFFLINECACHEUPDATESERVICE_CONTRACTID);
}
return gOfflineCacheUpdateService;
}
nsresult
nsOfflineCacheUpdateService::ScheduleUpdate(nsOfflineCacheUpdate *aUpdate)
{
LOG(("nsOfflineCacheUpdateService::Schedule [%p, update=%p]",
this, aUpdate));
aUpdate->SetOwner(this);
mUpdates.AppendElement(aUpdate);
ProcessNextUpdate();
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::ScheduleOnDocumentStop(nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsIDOMDocument *aDocument)
{
LOG(("nsOfflineCacheUpdateService::ScheduleOnDocumentStop [%p, manifestURI=%p, documentURI=%p doc=%p]",
this, aManifestURI, aDocumentURI, aDocument));
nsCOMPtr<nsIDocument> doc = do_QueryInterface(aDocument);
nsCOMPtr<nsISupports> container = doc->GetContainer();
nsCOMPtr<nsIWebProgress> progress = do_QueryInterface(container);
NS_ENSURE_TRUE(progress, NS_ERROR_INVALID_ARG);
// Proceed with cache update
nsRefPtr<nsOfflineCachePendingUpdate> update =
new nsOfflineCachePendingUpdate(this, aManifestURI,
aDocumentURI, aDocument);
NS_ENSURE_TRUE(update, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = progress->AddProgressListener
(update, nsIWebProgress::NOTIFY_STATE_DOCUMENT);
NS_ENSURE_SUCCESS(rv, rv);
// The update will release when it has scheduled itself.
update.forget();
return NS_OK;
}
nsresult
nsOfflineCacheUpdateService::UpdateFinished(nsOfflineCacheUpdate *aUpdate)
{
LOG(("nsOfflineCacheUpdateService::UpdateFinished [%p, update=%p]",
this, aUpdate));
NS_ASSERTION(mUpdates.Length() > 0 &&
mUpdates[0] == aUpdate, "Unknown update completed");
// keep this item alive until we're done notifying observers
nsRefPtr<nsOfflineCacheUpdate> update = mUpdates[0];
mUpdates.RemoveElementAt(0);
mUpdateRunning = PR_FALSE;
ProcessNextUpdate();
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService <private>
//-----------------------------------------------------------------------------
nsresult
nsOfflineCacheUpdateService::ProcessNextUpdate()
{
LOG(("nsOfflineCacheUpdateService::ProcessNextUpdate [%p, num=%d]",
this, mUpdates.Length()));
if (mDisabled)
return NS_ERROR_ABORT;
if (mUpdateRunning)
return NS_OK;
if (mUpdates.Length() > 0) {
mUpdateRunning = PR_TRUE;
return mUpdates[0]->Begin();
}
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService::nsIOfflineCacheUpdateService
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsOfflineCacheUpdateService::GetNumUpdates(PRUint32 *aNumUpdates)
{
LOG(("nsOfflineCacheUpdateService::GetNumUpdates [%p]", this));
*aNumUpdates = mUpdates.Length();
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::GetUpdate(PRUint32 aIndex,
nsIOfflineCacheUpdate **aUpdate)
{
LOG(("nsOfflineCacheUpdateService::GetUpdate [%p, %d]", this, aIndex));
if (aIndex < mUpdates.Length()) {
NS_ADDREF(*aUpdate = mUpdates[aIndex]);
} else {
*aUpdate = nsnull;
}
return NS_OK;
}
nsresult
nsOfflineCacheUpdateService::FindUpdate(nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsOfflineCacheUpdate **aUpdate)
{
nsresult rv;
nsRefPtr<nsOfflineCacheUpdate> update;
for (PRUint32 i = 0; i < mUpdates.Length(); i++) {
update = mUpdates[i];
PRBool partial;
rv = update->GetPartial(&partial);
NS_ENSURE_SUCCESS(rv, rv);
if (partial) {
// Partial updates aren't considered
continue;
}
nsCOMPtr<nsIURI> manifestURI;
update->GetManifestURI(getter_AddRefs(manifestURI));
if (manifestURI) {
PRBool equals;
rv = manifestURI->Equals(aManifestURI, &equals);
if (equals) {
update.swap(*aUpdate);
return NS_OK;
}
}
}
return NS_ERROR_NOT_AVAILABLE;
}
nsresult
nsOfflineCacheUpdateService::Schedule(nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsIDOMDocument *aDocument,
nsIDOMWindow* aWindow,
nsIOfflineCacheUpdate **aUpdate)
{
nsCOMPtr<nsIOfflineCacheUpdate> update;
if (GeckoProcessType_Default != XRE_GetProcessType()) {
update = new OfflineCacheUpdateChild(aWindow);
}
else {
update = new OfflineCacheUpdateGlue();
}
nsresult rv;
rv = update->Init(aManifestURI, aDocumentURI, aDocument);
NS_ENSURE_SUCCESS(rv, rv);
rv = update->Schedule();
NS_ENSURE_SUCCESS(rv, rv);
NS_ADDREF(*aUpdate = update);
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::ScheduleUpdate(nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsIDOMWindow *aWindow,
nsIOfflineCacheUpdate **aUpdate)
{
return Schedule(aManifestURI, aDocumentURI, nsnull, aWindow, aUpdate);
}
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService::nsIObserver
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsOfflineCacheUpdateService::Observe(nsISupports *aSubject,
const char *aTopic,
const PRUnichar *aData)
{
if (!strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
if (mUpdates.Length() > 0)
mUpdates[0]->Cancel();
mDisabled = PR_TRUE;
}
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService::nsIOfflineCacheUpdateService
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsOfflineCacheUpdateService::OfflineAppAllowed(nsIPrincipal *aPrincipal,
nsIPrefBranch *aPrefBranch,
PRBool *aAllowed)
{
nsCOMPtr<nsIURI> codebaseURI;
nsresult rv = aPrincipal->GetURI(getter_AddRefs(codebaseURI));
NS_ENSURE_SUCCESS(rv, rv);
return OfflineAppAllowedForURI(codebaseURI, aPrefBranch, aAllowed);
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::OfflineAppAllowedForURI(nsIURI *aURI,
nsIPrefBranch *aPrefBranch,
PRBool *aAllowed)
{
*aAllowed = PR_FALSE;
if (!aURI)
return NS_OK;
nsCOMPtr<nsIURI> innerURI = NS_GetInnermostURI(aURI);
if (!innerURI)
return NS_OK;
// only http and https applications can use offline APIs.
PRBool match;
nsresult rv = innerURI->SchemeIs("http", &match);
NS_ENSURE_SUCCESS(rv, rv);
if (!match) {
rv = innerURI->SchemeIs("https", &match);
NS_ENSURE_SUCCESS(rv, rv);
if (!match) {
return NS_OK;
}
}
nsCOMPtr<nsIPermissionManager> permissionManager =
do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
if (!permissionManager) {
return NS_OK;
}
PRUint32 perm;
permissionManager->TestExactPermission(innerURI, "offline-app", &perm);
if (perm == nsIPermissionManager::UNKNOWN_ACTION) {
static const char kPrefName[] = "offline-apps.allow_by_default";
if (aPrefBranch) {
aPrefBranch->GetBoolPref(kPrefName, aAllowed);
} else {
*aAllowed = Preferences::GetBool(kPrefName, PR_FALSE);
}
return NS_OK;
}
if (perm == nsIPermissionManager::DENY_ACTION) {
return NS_OK;
}
*aAllowed = PR_TRUE;
return NS_OK;
}