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gecko-dev/dom/ipc/ContentParent.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set sw=4 ts=8 et tw=80 : */
/* ***** 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 Content App.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Frederic Plourde <frederic.plourde@collabora.co.uk>
*
* 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 "ContentParent.h"
#include "TabParent.h"
#include "History.h"
#include "mozilla/ipc/TestShellParent.h"
#include "mozilla/net/NeckoParent.h"
#include "nsIFilePicker.h"
#include "nsIWindowWatcher.h"
#include "nsIDOMWindow.h"
#include "nsIPrefBranch.h"
#include "nsIPrefBranch2.h"
#include "nsIPrefService.h"
#include "nsIPrefLocalizedString.h"
#include "nsIObserverService.h"
#include "nsContentUtils.h"
#include "nsAutoPtr.h"
#include "nsCOMPtr.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include "nsChromeRegistryChrome.h"
#include "nsExternalHelperAppService.h"
#include "nsCExternalHandlerService.h"
#include "nsFrameMessageManager.h"
#include "nsIAlertsService.h"
#include "nsToolkitCompsCID.h"
#include "nsIDOMGeoGeolocation.h"
#include "nsIConsoleService.h"
#include "nsIScriptError.h"
#include "nsConsoleMessage.h"
#ifdef MOZ_PERMISSIONS
#include "nsPermissionManager.h"
#endif
#include "mozilla/dom/ExternalHelperAppParent.h"
#include "nsAccelerometer.h"
using namespace mozilla::ipc;
using namespace mozilla::net;
using namespace mozilla::places;
using mozilla::MonitorAutoEnter;
namespace mozilla {
namespace dom {
#define NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC "ipc:network:set-offline"
ContentParent* ContentParent::gSingleton;
ContentParent*
ContentParent::GetSingleton(PRBool aForceNew)
{
if (gSingleton && !gSingleton->IsAlive())
gSingleton = nsnull;
if (!gSingleton && aForceNew) {
nsRefPtr<ContentParent> parent = new ContentParent();
if (parent) {
nsCOMPtr<nsIObserverService> obs =
do_GetService("@mozilla.org/observer-service;1");
if (obs) {
if (NS_SUCCEEDED(obs->AddObserver(parent, "xpcom-shutdown",
PR_FALSE))) {
gSingleton = parent;
nsCOMPtr<nsIPrefBranch2> prefs
(do_GetService(NS_PREFSERVICE_CONTRACTID));
if (prefs) {
prefs->AddObserver("", parent, PR_FALSE);
}
}
obs->AddObserver(
parent, NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC, PR_FALSE);
}
nsCOMPtr<nsIThreadInternal>
threadInt(do_QueryInterface(NS_GetCurrentThread()));
if (threadInt) {
threadInt->GetObserver(getter_AddRefs(parent->mOldObserver));
threadInt->SetObserver(parent);
}
}
}
return gSingleton;
}
void
ContentParent::ActorDestroy(ActorDestroyReason why)
{
nsCOMPtr<nsIThreadObserver>
kungFuDeathGrip(static_cast<nsIThreadObserver*>(this));
nsCOMPtr<nsIObserverService>
obs(do_GetService("@mozilla.org/observer-service;1"));
if (obs)
obs->RemoveObserver(static_cast<nsIObserver*>(this), "xpcom-shutdown");
nsCOMPtr<nsIThreadInternal>
threadInt(do_QueryInterface(NS_GetCurrentThread()));
if (threadInt)
threadInt->SetObserver(mOldObserver);
if (mRunToCompletionDepth)
mRunToCompletionDepth = 0;
mIsAlive = false;
if (obs) {
nsString context = NS_LITERAL_STRING("");
if (AbnormalShutdown == why)
context.AssignLiteral("abnormal");
obs->NotifyObservers(nsnull, "ipc:content-shutdown", context.get());
}
}
TabParent*
ContentParent::CreateTab(PRUint32 aChromeFlags)
{
return static_cast<TabParent*>(SendPBrowserConstructor(aChromeFlags));
}
TestShellParent*
ContentParent::CreateTestShell()
{
return static_cast<TestShellParent*>(SendPTestShellConstructor());
}
bool
ContentParent::DestroyTestShell(TestShellParent* aTestShell)
{
return PTestShellParent::Send__delete__(aTestShell);
}
ContentParent::ContentParent()
: mMonitor("ContentParent::mMonitor")
, mGeolocationWatchID(-1)
, mRunToCompletionDepth(0)
, mShouldCallUnblockChild(false)
, mIsAlive(true)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
mSubprocess = new GeckoChildProcessHost(GeckoProcessType_Content);
mSubprocess->AsyncLaunch();
Open(mSubprocess->GetChannel(), mSubprocess->GetChildProcessHandle());
nsCOMPtr<nsIChromeRegistry> registrySvc = nsChromeRegistry::GetService();
nsChromeRegistryChrome* chromeRegistry =
static_cast<nsChromeRegistryChrome*>(registrySvc.get());
chromeRegistry->SendRegisteredChrome(this);
}
ContentParent::~ContentParent()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
//If the previous content process has died, a new one could have
//been started since.
if (gSingleton == this)
gSingleton = nsnull;
}
bool
ContentParent::IsAlive()
{
return mIsAlive;
}
bool
ContentParent::RecvReadPrefsArray(InfallibleTArray<PrefTuple> *prefs)
{
EnsurePrefService();
mPrefService->MirrorPreferences(prefs);
return true;
}
void
ContentParent::EnsurePrefService()
{
nsresult rv;
if (!mPrefService) {
mPrefService = do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
NS_ASSERTION(NS_SUCCEEDED(rv),
"We lost prefService in the Chrome process !");
}
}
bool
ContentParent::RecvReadPermissions(InfallibleTArray<IPC::Permission>* aPermissions)
{
#ifdef MOZ_PERMISSIONS
nsRefPtr<nsPermissionManager> permissionManager =
nsPermissionManager::GetSingleton();
NS_ABORT_IF_FALSE(permissionManager,
"We have no permissionManager in the Chrome process !");
nsCOMPtr<nsISimpleEnumerator> enumerator;
nsresult rv = permissionManager->GetEnumerator(getter_AddRefs(enumerator));
NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv), "Could not get enumerator!");
while(1) {
PRBool hasMore;
enumerator->HasMoreElements(&hasMore);
if (!hasMore)
break;
nsCOMPtr<nsISupports> supp;
enumerator->GetNext(getter_AddRefs(supp));
nsCOMPtr<nsIPermission> perm = do_QueryInterface(supp);
nsCString host;
perm->GetHost(host);
nsCString type;
perm->GetType(type);
PRUint32 capability;
perm->GetCapability(&capability);
PRUint32 expireType;
perm->GetExpireType(&expireType);
PRInt64 expireTime;
perm->GetExpireTime(&expireTime);
aPermissions->AppendElement(IPC::Permission(host, type, capability,
expireType, expireTime));
}
// Ask for future changes
permissionManager->ChildRequestPermissions();
#endif
return true;
}
NS_IMPL_THREADSAFE_ISUPPORTS3(ContentParent,
nsIObserver,
nsIThreadObserver,
nsIDOMGeoPositionCallback)
namespace {
void
DeleteSubprocess(GeckoChildProcessHost* aSubprocess)
{
delete aSubprocess;
}
}
NS_IMETHODIMP
ContentParent::Observe(nsISupports* aSubject,
const char* aTopic,
const PRUnichar* aData)
{
if (!strcmp(aTopic, "xpcom-shutdown") && mSubprocess) {
// remove the global remote preferences observers
nsCOMPtr<nsIPrefBranch2> prefs
(do_GetService(NS_PREFSERVICE_CONTRACTID));
if (prefs) {
if (gSingleton) {
prefs->RemoveObserver("", this);
}
}
RecvRemoveGeolocationListener();
Close();
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(DeleteSubprocess, mSubprocess));
mSubprocess = nsnull;
}
if (!mIsAlive || !mSubprocess)
return NS_OK;
// listening for remotePrefs...
if (!strcmp(aTopic, "nsPref:changed")) {
// We know prefs are ASCII here.
NS_LossyConvertUTF16toASCII strData(aData);
PrefTuple pref;
nsCOMPtr<nsIPrefServiceInternal> prefService =
do_GetService("@mozilla.org/preferences-service;1");
prefService->MirrorPreference(strData, &pref);
if (!SendPreferenceUpdate(pref))
return NS_ERROR_NOT_AVAILABLE;
}
else if (!strcmp(aTopic, NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC)) {
NS_ConvertUTF16toUTF8 dataStr(aData);
const char *offline = dataStr.get();
if (!SendSetOffline(!strcmp(offline, "true") ? true : false))
return NS_ERROR_NOT_AVAILABLE;
}
// listening for alert notifications
else if (!strcmp(aTopic, "alertfinished") ||
!strcmp(aTopic, "alertclickcallback") ) {
if (!SendNotifyAlertsObserver(nsDependentCString(aTopic),
nsDependentString(aData)))
return NS_ERROR_NOT_AVAILABLE;
}
return NS_OK;
}
PBrowserParent*
ContentParent::AllocPBrowser(const PRUint32& aChromeFlags)
{
TabParent* parent = new TabParent();
if (parent){
NS_ADDREF(parent);
}
return parent;
}
bool
ContentParent::DeallocPBrowser(PBrowserParent* frame)
{
TabParent* parent = static_cast<TabParent*>(frame);
NS_RELEASE(parent);
return true;
}
PTestShellParent*
ContentParent::AllocPTestShell()
{
return new TestShellParent();
}
bool
ContentParent::DeallocPTestShell(PTestShellParent* shell)
{
delete shell;
return true;
}
PNeckoParent*
ContentParent::AllocPNecko()
{
return new NeckoParent();
}
bool
ContentParent::DeallocPNecko(PNeckoParent* necko)
{
delete necko;
return true;
}
PExternalHelperAppParent*
ContentParent::AllocPExternalHelperApp(const IPC::URI& uri,
const nsCString& aMimeContentType,
const nsCString& aContentDisposition,
const bool& aForceSave,
const PRInt64& aContentLength)
{
ExternalHelperAppParent *parent = new ExternalHelperAppParent(uri, aContentLength);
parent->AddRef();
parent->Init(this, aMimeContentType, aContentDisposition, aForceSave);
return parent;
}
bool
ContentParent::DeallocPExternalHelperApp(PExternalHelperAppParent* aService)
{
ExternalHelperAppParent *parent = static_cast<ExternalHelperAppParent *>(aService);
parent->Release();
return true;
}
void
ContentParent::ReportChildAlreadyBlocked()
{
if (!mRunToCompletionDepth) {
#ifdef DEBUG
printf("Running to completion...\n");
#endif
mRunToCompletionDepth = 1;
mShouldCallUnblockChild = false;
}
}
bool
ContentParent::RequestRunToCompletion()
{
if (!mRunToCompletionDepth &&
BlockChild()) {
#ifdef DEBUG
printf("Running to completion...\n");
#endif
mRunToCompletionDepth = 1;
mShouldCallUnblockChild = true;
}
return !!mRunToCompletionDepth;
}
bool
ContentParent::RecvStartVisitedQuery(const IPC::URI& aURI)
{
nsCOMPtr<nsIURI> newURI(aURI);
IHistory *history = nsContentUtils::GetHistory();
history->RegisterVisitedCallback(newURI, nsnull);
return true;
}
bool
ContentParent::RecvVisitURI(const IPC::URI& uri,
const IPC::URI& referrer,
const PRUint32& flags)
{
nsCOMPtr<nsIURI> ourURI(uri);
nsCOMPtr<nsIURI> ourReferrer(referrer);
IHistory *history = nsContentUtils::GetHistory();
history->VisitURI(ourURI, ourReferrer, flags);
return true;
}
bool
ContentParent::RecvSetURITitle(const IPC::URI& uri,
const nsString& title)
{
nsCOMPtr<nsIURI> ourURI(uri);
IHistory *history = nsContentUtils::GetHistory();
history->SetURITitle(ourURI, title);
return true;
}
bool
ContentParent::RecvShowFilePicker(const PRInt16& mode,
const PRInt16& selectedType,
const nsString& title,
const nsString& defaultFile,
const nsString& defaultExtension,
const InfallibleTArray<nsString>& filters,
const InfallibleTArray<nsString>& filterNames,
InfallibleTArray<nsString>* files,
PRInt16* retValue,
nsresult* result)
{
nsCOMPtr<nsIFilePicker> filePicker = do_CreateInstance("@mozilla.org/filepicker;1");
if (!filePicker) {
*result = NS_ERROR_NOT_AVAILABLE;
return true;
}
// as the parent given to the content process would be meaningless in this
// process, always use active window as the parent
nsCOMPtr<nsIWindowWatcher> ww = do_GetService(NS_WINDOWWATCHER_CONTRACTID);
nsCOMPtr<nsIDOMWindow> window;
ww->GetActiveWindow(getter_AddRefs(window));
// initialize the "real" picker with all data given
*result = filePicker->Init(window, title, mode);
if (NS_FAILED(*result))
return true;
PRUint32 count = filters.Length();
for (PRUint32 i = 0; i < count; ++i) {
filePicker->AppendFilter(filterNames[i], filters[i]);
}
filePicker->SetDefaultString(defaultFile);
filePicker->SetDefaultExtension(defaultExtension);
filePicker->SetFilterIndex(selectedType);
// and finally open the dialog
*result = filePicker->Show(retValue);
if (NS_FAILED(*result))
return true;
if (mode == nsIFilePicker::modeOpenMultiple) {
nsCOMPtr<nsISimpleEnumerator> fileIter;
*result = filePicker->GetFiles(getter_AddRefs(fileIter));
nsCOMPtr<nsILocalFile> singleFile;
PRBool loop = PR_TRUE;
while (NS_SUCCEEDED(fileIter->HasMoreElements(&loop)) && loop) {
fileIter->GetNext(getter_AddRefs(singleFile));
if (singleFile) {
nsAutoString filePath;
singleFile->GetPath(filePath);
files->AppendElement(filePath);
}
}
return true;
}
nsCOMPtr<nsILocalFile> file;
filePicker->GetFile(getter_AddRefs(file));
// even with NS_OK file can be null if nothing was selected
if (file) {
nsAutoString filePath;
file->GetPath(filePath);
files->AppendElement(filePath);
}
return true;
}
bool
ContentParent::RecvLoadURIExternal(const IPC::URI& uri)
{
nsCOMPtr<nsIExternalProtocolService> extProtService(do_GetService(NS_EXTERNALPROTOCOLSERVICE_CONTRACTID));
if (!extProtService)
return true;
nsCOMPtr<nsIURI> ourURI(uri);
extProtService->LoadURI(ourURI, nsnull);
return true;
}
/* void onDispatchedEvent (in nsIThreadInternal thread); */
NS_IMETHODIMP
ContentParent::OnDispatchedEvent(nsIThreadInternal *thread)
{
if (mOldObserver)
return mOldObserver->OnDispatchedEvent(thread);
return NS_OK;
}
/* void onProcessNextEvent (in nsIThreadInternal thread, in boolean mayWait, in unsigned long recursionDepth); */
NS_IMETHODIMP
ContentParent::OnProcessNextEvent(nsIThreadInternal *thread,
PRBool mayWait,
PRUint32 recursionDepth)
{
if (mRunToCompletionDepth)
++mRunToCompletionDepth;
if (mOldObserver)
return mOldObserver->OnProcessNextEvent(thread, mayWait, recursionDepth);
return NS_OK;
}
/* void afterProcessNextEvent (in nsIThreadInternal thread, in unsigned long recursionDepth); */
NS_IMETHODIMP
ContentParent::AfterProcessNextEvent(nsIThreadInternal *thread,
PRUint32 recursionDepth)
{
if (mRunToCompletionDepth &&
!--mRunToCompletionDepth) {
#ifdef DEBUG
printf("... ran to completion.\n");
#endif
if (mShouldCallUnblockChild) {
mShouldCallUnblockChild = false;
UnblockChild();
}
}
if (mOldObserver)
return mOldObserver->AfterProcessNextEvent(thread, recursionDepth);
return NS_OK;
}
bool
ContentParent::RecvShowAlertNotification(const nsString& aImageUrl, const nsString& aTitle,
const nsString& aText, const PRBool& aTextClickable,
const nsString& aCookie, const nsString& aName)
{
nsCOMPtr<nsIAlertsService> sysAlerts(do_GetService(NS_ALERTSERVICE_CONTRACTID));
if (sysAlerts) {
sysAlerts->ShowAlertNotification(aImageUrl, aTitle, aText, aTextClickable,
aCookie, this, aName);
}
return true;
}
bool
ContentParent::RecvSyncMessage(const nsString& aMsg, const nsString& aJSON,
InfallibleTArray<nsString>* aRetvals)
{
nsRefPtr<nsFrameMessageManager> ppm = nsFrameMessageManager::sParentProcessManager;
if (ppm) {
ppm->ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(ppm.get()),
aMsg,PR_TRUE, aJSON, nsnull, aRetvals);
}
return true;
}
bool
ContentParent::RecvAsyncMessage(const nsString& aMsg, const nsString& aJSON)
{
nsRefPtr<nsFrameMessageManager> ppm = nsFrameMessageManager::sParentProcessManager;
if (ppm) {
ppm->ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(ppm.get()),
aMsg, PR_FALSE, aJSON, nsnull, nsnull);
}
return true;
}
bool
ContentParent::RecvAddGeolocationListener()
{
if (mGeolocationWatchID == -1) {
nsCOMPtr<nsIDOMGeoGeolocation> geo = do_GetService("@mozilla.org/geolocation;1");
if (!geo) {
return true;
}
geo->WatchPosition(this, nsnull, nsnull, &mGeolocationWatchID);
}
return true;
}
bool
ContentParent::RecvRemoveGeolocationListener()
{
if (mGeolocationWatchID != -1) {
nsCOMPtr<nsIDOMGeoGeolocation> geo = do_GetService("@mozilla.org/geolocation;1");
if (!geo) {
return true;
}
geo->ClearWatch(mGeolocationWatchID);
mGeolocationWatchID = -1;
}
return true;
}
bool
ContentParent::RecvAddAccelerometerListener()
{
nsCOMPtr<nsIAccelerometer> ac =
do_GetService(NS_ACCELEROMETER_CONTRACTID);
if (ac)
ac->AddListener(this);
return true;
}
bool
ContentParent::RecvRemoveAccelerometerListener()
{
nsCOMPtr<nsIAccelerometer> ac =
do_GetService(NS_ACCELEROMETER_CONTRACTID);
if (ac)
ac->RemoveListener(this);
return true;
}
NS_IMETHODIMP
ContentParent::HandleEvent(nsIDOMGeoPosition* postion)
{
SendGeolocationUpdate(GeoPosition(postion));
return NS_OK;
}
bool
ContentParent::RecvConsoleMessage(const nsString& aMessage)
{
nsCOMPtr<nsIConsoleService> svc(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
if (!svc)
return true;
nsRefPtr<nsConsoleMessage> msg(new nsConsoleMessage(aMessage.get()));
svc->LogMessage(msg);
return true;
}
bool
ContentParent::RecvScriptError(const nsString& aMessage,
const nsString& aSourceName,
const nsString& aSourceLine,
const PRUint32& aLineNumber,
const PRUint32& aColNumber,
const PRUint32& aFlags,
const nsCString& aCategory)
{
nsCOMPtr<nsIConsoleService> svc(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
if (!svc)
return true;
nsCOMPtr<nsIScriptError> msg(do_CreateInstance(NS_SCRIPTERROR_CONTRACTID));
nsresult rv = msg->Init(aMessage.get(), aSourceName.get(), aSourceLine.get(),
aLineNumber, aColNumber, aFlags, aCategory.get());
if (NS_FAILED(rv))
return true;
svc->LogMessage(msg);
return true;
}
NS_IMETHODIMP
ContentParent::OnAccelerationChange(nsIAcceleration *aAcceleration)
{
double x, y, z;
aAcceleration->GetX(&x);
aAcceleration->GetY(&y);
aAcceleration->GetZ(&z);
mozilla::dom::ContentParent::GetSingleton()->
SendAccelerationChanged(x, y, z);
return NS_OK;
}
} // namespace dom
} // namespace mozilla
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