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gecko/dom/devicestorage/nsDeviceStorage.cpp

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/* 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 "base/basictypes.h"
#include "nsDeviceStorage.h"
#include "mozilla/Attributes.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/devicestorage/PDeviceStorageRequestChild.h"
#include "mozilla/dom/ipc/Blob.h"
#include "mozilla/dom/PBrowserChild.h"
#include "mozilla/dom/PContentPermissionRequestChild.h"
#include "mozilla/Util.h" // DebugOnly
#include "nsAutoPtr.h"
#include "nsDOMEvent.h"
#include "nsServiceManagerUtils.h"
#include "nsIFile.h"
#include "nsIDirectoryEnumerator.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsDirectoryServiceDefs.h"
#include "nsIDOMFile.h"
#include "nsDOMBlobBuilder.h"
#include "nsNetUtil.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIPrincipal.h"
#include "mozilla/Preferences.h"
#include "nsJSUtils.h"
#include "DictionaryHelpers.h"
#include "mozilla/Attributes.h"
#include "nsContentUtils.h"
#include "nsXULAppAPI.h"
#include "TabChild.h"
#include "DeviceStorageRequestChild.h"
#include "nsIDOMDeviceStorageChangeEvent.h"
#include "nsCRT.h"
#include "mozilla/Services.h"
#include "nsIObserverService.h"
#include "GeneratedEvents.h"
#include "mozilla/dom/PermissionMessageUtils.h"
#include "nsIMIMEService.h"
#include "nsCExternalHandlerService.h"
#include "nsIPermissionManager.h"
#include "nsIStringBundle.h"
// Microsoft's API Name hackery sucks
#undef CreateEvent
#ifdef MOZ_WIDGET_GONK
#include "nsIVolume.h"
#include "nsIVolumeService.h"
#endif
#define DEVICESTORAGE_PROPERTIES "chrome://global/content/devicestorage.properties"
#define DEVICESTORAGE_PICTURES "pictures"
#define DEVICESTORAGE_VIDEOS "videos"
#define DEVICESTORAGE_MUSIC "music"
#define DEVICESTORAGE_APPS "apps"
#define DEVICESTORAGE_SDCARD "sdcard"
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::dom::devicestorage;
#include "nsDirectoryServiceDefs.h"
nsAutoPtr<DeviceStorageTypeChecker> DeviceStorageTypeChecker::sDeviceStorageTypeChecker;
DeviceStorageTypeChecker::DeviceStorageTypeChecker()
{
}
DeviceStorageTypeChecker::~DeviceStorageTypeChecker()
{
}
DeviceStorageTypeChecker*
DeviceStorageTypeChecker::CreateOrGet()
{
if (sDeviceStorageTypeChecker) {
return sDeviceStorageTypeChecker;
}
NS_ASSERTION(NS_IsMainThread(), "This can only be created on the main thread!");
nsCOMPtr<nsIStringBundleService> stringService = mozilla::services::GetStringBundleService();
if (!stringService) {
return nullptr;
}
nsCOMPtr<nsIStringBundle> filterBundle;
if (NS_FAILED(stringService->CreateBundle(DEVICESTORAGE_PROPERTIES, getter_AddRefs(filterBundle)))) {
return nullptr;
}
DeviceStorageTypeChecker* result = new DeviceStorageTypeChecker();
result->InitFromBundle(filterBundle);
sDeviceStorageTypeChecker = result;
ClearOnShutdown(&sDeviceStorageTypeChecker);
return result;
}
void
DeviceStorageTypeChecker::InitFromBundle(nsIStringBundle* aBundle)
{
aBundle->GetStringFromName(NS_ConvertASCIItoUTF16(DEVICESTORAGE_PICTURES).get(), getter_Copies(mPicturesExtensions));
aBundle->GetStringFromName(NS_ConvertASCIItoUTF16(DEVICESTORAGE_MUSIC).get(), getter_Copies(mMusicExtensions));
aBundle->GetStringFromName(NS_ConvertASCIItoUTF16(DEVICESTORAGE_VIDEOS).get(), getter_Copies(mVideosExtensions));
}
bool
DeviceStorageTypeChecker::Check(const nsAString& aType, nsIDOMBlob* aBlob)
{
NS_ASSERTION(aBlob, "Calling Check without a blob");
nsString mimeType;
if (NS_FAILED(aBlob->GetType(mimeType))) {
return false;
}
if (aType.EqualsLiteral(DEVICESTORAGE_PICTURES)) {
return StringBeginsWith(mimeType, NS_LITERAL_STRING("image/"));
}
if (aType.EqualsLiteral(DEVICESTORAGE_VIDEOS)) {
return StringBeginsWith(mimeType, NS_LITERAL_STRING("video/"));
}
if (aType.EqualsLiteral(DEVICESTORAGE_MUSIC)) {
return StringBeginsWith(mimeType, NS_LITERAL_STRING("audio/"));
}
if (aType.EqualsLiteral(DEVICESTORAGE_APPS) ||
aType.EqualsLiteral(DEVICESTORAGE_SDCARD)) {
// Apps and sdcard have no restriction on mime types
return true;
}
return false;
}
bool
DeviceStorageTypeChecker::Check(const nsAString& aType, nsIFile* aFile)
{
NS_ASSERTION(aFile, "Calling Check without a file");
if (aType.EqualsLiteral(DEVICESTORAGE_APPS) ||
aType.EqualsLiteral(DEVICESTORAGE_SDCARD)) {
// apps have no restrictions on what file extensions used.
return true;
}
nsString path;
aFile->GetPath(path);
int32_t dotIdx = path.RFindChar(PRUnichar('.'));
if (dotIdx == kNotFound) {
return false;
}
nsAutoString extensionMatch;
extensionMatch.AssignLiteral("*");
extensionMatch.Append(Substring(path, dotIdx));
extensionMatch.AppendLiteral(";");
if (aType.EqualsLiteral(DEVICESTORAGE_PICTURES)) {
return CaseInsensitiveFindInReadable(extensionMatch, mPicturesExtensions);
}
if (aType.EqualsLiteral(DEVICESTORAGE_VIDEOS)) {
return CaseInsensitiveFindInReadable(extensionMatch, mVideosExtensions);
}
if (aType.EqualsLiteral(DEVICESTORAGE_MUSIC)) {
return CaseInsensitiveFindInReadable(extensionMatch, mMusicExtensions);
}
return false;
}
nsresult
DeviceStorageTypeChecker::GetPermissionForType(const nsAString& aType, nsACString& aPermissionResult)
{
if (!aType.EqualsLiteral(DEVICESTORAGE_PICTURES) &&
!aType.EqualsLiteral(DEVICESTORAGE_VIDEOS) &&
!aType.EqualsLiteral(DEVICESTORAGE_MUSIC) &&
!aType.EqualsLiteral(DEVICESTORAGE_APPS) &&
!aType.EqualsLiteral(DEVICESTORAGE_SDCARD)) {
// unknown type
return NS_ERROR_FAILURE;
}
aPermissionResult.AssignLiteral("device-storage:");
aPermissionResult.Append(NS_ConvertUTF16toUTF8(aType));
return NS_OK;
}
nsresult
DeviceStorageTypeChecker::GetAccessForRequest(const DeviceStorageRequestType aRequestType, nsACString& aAccessResult)
{
switch(aRequestType) {
case DEVICE_STORAGE_REQUEST_READ:
case DEVICE_STORAGE_REQUEST_WATCH:
case DEVICE_STORAGE_REQUEST_STAT:
aAccessResult.AssignLiteral("read");
break;
case DEVICE_STORAGE_REQUEST_WRITE:
case DEVICE_STORAGE_REQUEST_DELETE:
aAccessResult.AssignLiteral("write");
break;
case DEVICE_STORAGE_REQUEST_CREATE:
aAccessResult.AssignLiteral("create");
break;
default:
aAccessResult.AssignLiteral("undefined");
}
return NS_OK;
}
class IOEventComplete : public nsRunnable
{
public:
IOEventComplete(DeviceStorageFile *aFile, const char *aType)
: mFile(aFile)
, mType(aType)
{
}
~IOEventComplete() {}
NS_IMETHOD Run()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
nsString data;
CopyASCIItoUTF16(mType, data);
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->NotifyObservers(mFile, "file-watcher-update", data.get());
return NS_OK;
}
private:
nsRefPtr<DeviceStorageFile> mFile;
nsCString mType;
};
DeviceStorageFile::DeviceStorageFile(const nsAString& aStorageType,
nsIFile* aFile,
const nsAString& aPath)
: mPath(aPath)
, mStorageType(aStorageType)
, mEditable(false)
{
NS_ASSERTION(aFile, "Must not create a DeviceStorageFile with a null nsIFile");
// always take a clone
nsCOMPtr<nsIFile> file;
aFile->Clone(getter_AddRefs(mFile));
AppendRelativePath();
NormalizeFilePath();
DebugOnly<DeviceStorageTypeChecker*> typeChecker = DeviceStorageTypeChecker::CreateOrGet();
NS_ASSERTION(typeChecker, "DeviceStorageTypeChecker is null");
}
DeviceStorageFile::DeviceStorageFile(const nsAString& aStorageType, nsIFile* aFile)
: mStorageType(aStorageType)
, mEditable(false)
{
NS_ASSERTION(aFile, "Must not create a DeviceStorageFile with a null nsIFile");
// always take a clone
nsCOMPtr<nsIFile> file;
aFile->Clone(getter_AddRefs(mFile));
DebugOnly<DeviceStorageTypeChecker*> typeChecker = DeviceStorageTypeChecker::CreateOrGet();
NS_ASSERTION(typeChecker, "DeviceStorageTypeChecker is null");
}
void
DeviceStorageFile::SetPath(const nsAString& aPath) {
mPath.Assign(aPath);
NormalizeFilePath();
}
void
DeviceStorageFile::SetEditable(bool aEditable) {
mEditable = aEditable;
}
// we want to make sure that the names of file can't reach
// outside of the type of storage the user asked for.
bool
DeviceStorageFile::IsSafePath()
{
nsAString::const_iterator start, end;
mPath.BeginReading(start);
mPath.EndReading(end);
// if the path has a ~ or \ in it, return false.
NS_NAMED_LITERAL_STRING(tilde, "~");
NS_NAMED_LITERAL_STRING(bslash, "\\");
if (FindInReadable(tilde, start, end) ||
FindInReadable(bslash, start, end)) {
return false;
}
// split on /. if any token is "", ., or .., return false.
NS_ConvertUTF16toUTF8 cname(mPath);
char* buffer = cname.BeginWriting();
const char* token;
while ((token = nsCRT::strtok(buffer, "/", &buffer))) {
if (PL_strcmp(token, "") == 0 ||
PL_strcmp(token, ".") == 0 ||
PL_strcmp(token, "..") == 0 ) {
return false;
}
}
return true;
}
void
DeviceStorageFile::NormalizeFilePath() {
#if defined(XP_WIN)
PRUnichar* cur = mPath.BeginWriting();
PRUnichar* end = mPath.EndWriting();
for (; cur < end; ++cur) {
if (PRUnichar('\\') == *cur)
*cur = PRUnichar('/');
}
#endif
}
void
DeviceStorageFile::AppendRelativePath() {
#if defined(XP_WIN)
// replace forward slashes with backslashes,
// since nsLocalFileWin chokes on them
nsString temp;
temp.Assign(mPath);
PRUnichar* cur = temp.BeginWriting();
PRUnichar* end = temp.EndWriting();
for (; cur < end; ++cur) {
if (PRUnichar('/') == *cur)
*cur = PRUnichar('\\');
}
mFile->AppendRelativePath(temp);
#else
mFile->AppendRelativePath(mPath);
#endif
}
nsresult
DeviceStorageFile::Write(nsIInputStream* aInputStream)
{
if (!aInputStream) {
return NS_ERROR_FAILURE;
}
nsresult rv = mFile->Create(nsIFile::NORMAL_FILE_TYPE, 00600);
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<IOEventComplete> iocomplete = new IOEventComplete(this, "created");
NS_DispatchToMainThread(iocomplete);
uint64_t bufSize = 0;
aInputStream->Available(&bufSize);
nsCOMPtr<nsIOutputStream> outputStream;
NS_NewLocalFileOutputStream(getter_AddRefs(outputStream), mFile);
if (!outputStream) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIOutputStream> bufferedOutputStream;
rv = NS_NewBufferedOutputStream(getter_AddRefs(bufferedOutputStream),
outputStream,
4096*4);
NS_ENSURE_SUCCESS(rv, rv);
while (bufSize) {
uint32_t wrote;
rv = bufferedOutputStream->WriteFrom(aInputStream,
static_cast<uint32_t>(NS_MIN<uint64_t>(bufSize, UINT32_MAX)),
&wrote);
if (NS_FAILED(rv)) {
break;
}
bufSize -= wrote;
}
iocomplete = new IOEventComplete(this, "modified");
NS_DispatchToMainThread(iocomplete);
bufferedOutputStream->Close();
outputStream->Close();
if (NS_FAILED(rv)) {
return rv;
}
return NS_OK;
}
nsresult
DeviceStorageFile::Write(InfallibleTArray<uint8_t>& aBits) {
nsresult rv = mFile->Create(nsIFile::NORMAL_FILE_TYPE, 00600);
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<IOEventComplete> iocomplete = new IOEventComplete(this, "created");
NS_DispatchToMainThread(iocomplete);
nsCOMPtr<nsIOutputStream> outputStream;
NS_NewLocalFileOutputStream(getter_AddRefs(outputStream), mFile);
if (!outputStream) {
return NS_ERROR_FAILURE;
}
uint32_t wrote;
outputStream->Write((char*) aBits.Elements(), aBits.Length(), &wrote);
outputStream->Close();
iocomplete = new IOEventComplete(this, "modified");
NS_DispatchToMainThread(iocomplete);
if (aBits.Length() != wrote) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult
DeviceStorageFile::Remove()
{
NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
bool check;
nsresult rv = mFile->Exists(&check);
if (NS_FAILED(rv)) {
return rv;
}
if (!check) {
return NS_OK;
}
rv = mFile->Remove(true);
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<IOEventComplete> iocomplete = new IOEventComplete(this, "deleted");
NS_DispatchToMainThread(iocomplete);
return NS_OK;
}
void
DeviceStorageFile::CollectFiles(nsTArray<nsRefPtr<DeviceStorageFile> > &aFiles,
PRTime aSince)
{
nsString rootPath;
nsresult rv = mFile->GetPath(rootPath);
if (NS_FAILED(rv)) {
return;
}
return collectFilesInternal(aFiles, aSince, rootPath);
}
void
DeviceStorageFile::collectFilesInternal(nsTArray<nsRefPtr<DeviceStorageFile> > &aFiles,
PRTime aSince,
nsAString& aRootPath)
{
nsCOMPtr<nsISimpleEnumerator> e;
mFile->GetDirectoryEntries(getter_AddRefs(e));
if (!e) {
return;
}
nsCOMPtr<nsIDirectoryEnumerator> files = do_QueryInterface(e);
nsCOMPtr<nsIFile> f;
while (NS_SUCCEEDED(files->GetNextFile(getter_AddRefs(f))) && f) {
PRTime msecs;
f->GetLastModifiedTime(&msecs);
if (msecs < aSince) {
continue;
}
bool isDir;
f->IsDirectory(&isDir);
bool isFile;
f->IsFile(&isFile);
nsString fullpath;
nsresult rv = f->GetPath(fullpath);
if (NS_FAILED(rv)) {
continue;
}
if (!StringBeginsWith(fullpath, aRootPath)) {
NS_ERROR("collectFiles returned a path that does not belong!");
continue;
}
nsAString::size_type len = aRootPath.Length() + 1; // +1 for the trailing /
nsDependentSubstring newPath = Substring(fullpath, len);
if (isDir) {
DeviceStorageFile dsf(mStorageType, f);
dsf.SetPath(newPath);
dsf.collectFilesInternal(aFiles, aSince, aRootPath);
} else if (isFile) {
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mStorageType, f);
dsf->SetPath(newPath);
aFiles.AppendElement(dsf);
}
}
}
void
DeviceStorageFile::DirectoryDiskUsage(nsIFile* aFile, uint64_t* aSoFar, const nsAString& aStorageType)
{
if (!aFile) {
return;
}
nsresult rv;
nsCOMPtr<nsISimpleEnumerator> e;
rv = aFile->GetDirectoryEntries(getter_AddRefs(e));
if (NS_FAILED(rv) || !e) {
return;
}
nsCOMPtr<nsIDirectoryEnumerator> files = do_QueryInterface(e);
NS_ASSERTION(files, "GetDirectoryEntries must return a nsIDirectoryEnumerator");
DeviceStorageTypeChecker* typeChecker = DeviceStorageTypeChecker::CreateOrGet();
if (!typeChecker) {
return;
}
nsCOMPtr<nsIFile> f;
while (NS_SUCCEEDED(files->GetNextFile(getter_AddRefs(f))) && f) {
bool isDir;
rv = f->IsDirectory(&isDir);
if (NS_FAILED(rv)) {
continue;
}
bool isFile;
rv = f->IsFile(&isFile);
if (NS_FAILED(rv)) {
continue;
}
bool isLink;
rv = f->IsSymlink(&isLink);
if (NS_FAILED(rv)) {
continue;
}
if (isLink) {
// for now, lets just totally ignore symlinks.
NS_WARNING("DirectoryDiskUsage ignores symlinks");
} else if (isDir) {
DirectoryDiskUsage(f, aSoFar, aStorageType);
} else if (isFile) {
if (!typeChecker->Check(aStorageType, f)) {
continue;
}
int64_t size;
rv = f->GetFileSize(&size);
if (NS_SUCCEEDED(rv)) {
*aSoFar += size;
}
}
}
}
NS_IMPL_THREADSAFE_ISUPPORTS0(DeviceStorageFile)
#ifdef MOZ_WIDGET_GONK
nsresult
GetSDCardStatus(nsAString& aState) {
nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID);
if (!vs) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIVolume> vol;
vs->GetVolumeByName(NS_LITERAL_STRING("sdcard"), getter_AddRefs(vol));
if (!vol) {
return NS_ERROR_FAILURE;
}
int32_t state;
nsresult rv = vol->GetState(&state);
if (NS_FAILED(rv)) {
return NS_ERROR_FAILURE;
}
if (state == nsIVolume::STATE_MOUNTED) {
aState.AssignLiteral("available");
} else if (state == nsIVolume::STATE_SHARED || state == nsIVolume::STATE_SHAREDMNT) {
aState.AssignLiteral("shared");
} else {
aState.AssignLiteral("unavailable");
}
return NS_OK;
}
static void
RegisterForSDCardChanges(nsIObserver* aObserver)
{
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->AddObserver(aObserver, NS_VOLUME_STATE_CHANGED, false);
}
static void
UnregisterForSDCardChanges(nsIObserver* aObserver)
{
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->RemoveObserver(aObserver, NS_VOLUME_STATE_CHANGED);
}
#endif
void
nsDOMDeviceStorage::SetRootDirectoryForType(const nsAString& aType)
{
nsCOMPtr<nsIFile> f;
nsCOMPtr<nsIProperties> dirService = do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID);
NS_ASSERTION(dirService, "Must have directory service");
// Picture directory
if (aType.EqualsLiteral(DEVICESTORAGE_PICTURES)) {
#ifdef MOZ_WIDGET_GONK
NS_NewLocalFile(NS_LITERAL_STRING("/sdcard"), false, getter_AddRefs(f));
#elif defined (MOZ_WIDGET_COCOA)
dirService->Get(NS_OSX_PICTURE_DOCUMENTS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
#elif defined (XP_UNIX)
dirService->Get(NS_UNIX_XDG_PICTURES_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
#elif defined (XP_WIN)
dirService->Get(NS_WIN_PICTURES_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
#endif
}
// Video directory
else if (aType.EqualsLiteral(DEVICESTORAGE_VIDEOS)) {
#ifdef MOZ_WIDGET_GONK
NS_NewLocalFile(NS_LITERAL_STRING("/sdcard"), false, getter_AddRefs(f));
#elif defined (MOZ_WIDGET_COCOA)
dirService->Get(NS_OSX_MOVIE_DOCUMENTS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
#elif defined (XP_UNIX)
dirService->Get(NS_UNIX_XDG_VIDEOS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
#elif defined (XP_WIN)
dirService->Get(NS_WIN_VIDEOS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
#endif
}
// Music directory
else if (aType.EqualsLiteral(DEVICESTORAGE_MUSIC)) {
#ifdef MOZ_WIDGET_GONK
NS_NewLocalFile(NS_LITERAL_STRING("/sdcard"), false, getter_AddRefs(f));
#elif defined (MOZ_WIDGET_COCOA)
dirService->Get(NS_OSX_MUSIC_DOCUMENTS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
#elif defined (XP_UNIX)
dirService->Get(NS_UNIX_XDG_MUSIC_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
#elif defined (XP_WIN)
dirService->Get(NS_WIN_MUSIC_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
#endif
}
// Apps directory
else if (aType.EqualsLiteral(DEVICESTORAGE_APPS)) {
#ifdef MOZ_WIDGET_GONK
NS_NewLocalFile(NS_LITERAL_STRING("/data"), false, getter_AddRefs(f));
#else
dirService->Get(NS_APP_USER_PROFILE_50_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
if (f) {
f->AppendRelativeNativePath(NS_LITERAL_CSTRING("webapps"));
}
#endif
}
// default SDCard
else if (aType.EqualsLiteral(DEVICESTORAGE_SDCARD)) {
#ifdef MOZ_WIDGET_GONK
NS_NewLocalFile(NS_LITERAL_STRING("/sdcard"), false, getter_AddRefs(f));
#else
// Eventually, on desktop, we want to do something smarter -- for example,
// detect when an sdcard is inserted, and use that instead of this.
dirService->Get(NS_APP_USER_PROFILE_50_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
if (f) {
f->AppendRelativeNativePath(NS_LITERAL_CSTRING("fake-sdcard"));
}
#endif
}
// in testing, we default all device storage types to a temp directory
if (f && mozilla::Preferences::GetBool("device.storage.testing", false)) {
dirService->Get(NS_OS_TEMP_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
if (f) {
f->AppendRelativeNativePath(NS_LITERAL_CSTRING("device-storage-testing"));
f->Create(nsIFile::DIRECTORY_TYPE, 0777);
f->Normalize();
}
}
#ifdef MOZ_WIDGET_GONK
RegisterForSDCardChanges(this);
#endif
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->AddObserver(this, "file-watcher-update", false);
mRootDirectory = f;
mStorageType = aType;
}
jsval InterfaceToJsval(nsPIDOMWindow* aWindow, nsISupports* aObject, const nsIID* aIID)
{
nsCOMPtr<nsIScriptGlobalObject> sgo = do_QueryInterface(aWindow);
if (!sgo) {
return JSVAL_NULL;
}
nsIScriptContext *scriptContext = sgo->GetScriptContext();
if (!scriptContext) {
return JSVAL_NULL;
}
JSContext *cx = scriptContext->GetNativeContext();
if (!cx) {
return JSVAL_NULL;
}
jsval someJsVal;
nsresult rv = nsContentUtils::WrapNative(cx,
JS_GetGlobalObject(cx),
aObject,
aIID,
&someJsVal);
if (NS_FAILED(rv)) {
return JSVAL_NULL;
}
return someJsVal;
}
jsval nsIFileToJsval(nsPIDOMWindow* aWindow, DeviceStorageFile* aFile)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aWindow, "Null Window");
if (!aFile) {
return JSVAL_NULL;
}
if (aFile->mEditable) {
// TODO - needs janv's file handle support.
return JSVAL_NULL;
}
nsCOMPtr<nsIDOMBlob> blob = new nsDOMFileFile(aFile->mFile, aFile->mPath);
return InterfaceToJsval(aWindow, blob, &NS_GET_IID(nsIDOMBlob));
}
jsval StringToJsval(nsPIDOMWindow* aWindow, nsAString& aString)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aWindow, "Null Window");
nsCOMPtr<nsIScriptGlobalObject> sgo = do_QueryInterface(aWindow);
if (!sgo) {
return JSVAL_NULL;
}
nsIScriptContext *scriptContext = sgo->GetScriptContext();
if (!scriptContext) {
return JSVAL_NULL;
}
JSContext *cx = scriptContext->GetNativeContext();
if (!cx) {
return JSVAL_NULL;
}
JSAutoRequest ar(cx);
jsval result = JSVAL_NULL;
if (!xpc::StringToJsval(cx, aString, &result)) {
return JSVAL_NULL;
}
return result;
}
class DeviceStorageCursorRequest MOZ_FINAL
: public nsIContentPermissionRequest
, public PCOMContentPermissionRequestChild
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(DeviceStorageCursorRequest, nsIContentPermissionRequest)
NS_FORWARD_NSICONTENTPERMISSIONREQUEST(mCursor->);
DeviceStorageCursorRequest(nsDOMDeviceStorageCursor* aCursor)
: mCursor(aCursor) { }
~DeviceStorageCursorRequest() {}
bool Recv__delete__(const bool& allow)
{
if (allow) {
Allow();
}
else {
Cancel();
}
return true;
}
void IPDLRelease()
{
Release();
}
private:
nsRefPtr<nsDOMDeviceStorageCursor> mCursor;
};
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DeviceStorageCursorRequest)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIContentPermissionRequest)
NS_INTERFACE_MAP_ENTRY(nsIContentPermissionRequest)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(DeviceStorageCursorRequest)
NS_IMPL_CYCLE_COLLECTING_RELEASE(DeviceStorageCursorRequest)
NS_IMPL_CYCLE_COLLECTION_CLASS(DeviceStorageCursorRequest)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(DeviceStorageCursorRequest)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mCursor)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(DeviceStorageCursorRequest)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCursor)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
class PostErrorEvent : public nsRunnable
{
public:
PostErrorEvent(nsRefPtr<DOMRequest>& aRequest, const char* aMessage)
{
mRequest.swap(aRequest);
CopyASCIItoUTF16(aMessage, mError);
}
PostErrorEvent(DOMRequest* aRequest, const char* aMessage)
: mRequest(aRequest)
{
CopyASCIItoUTF16(aMessage, mError);
}
~PostErrorEvent() {}
NS_IMETHOD Run()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
mRequest->FireError(mError);
mRequest = nullptr;
return NS_OK;
}
private:
nsRefPtr<DOMRequest> mRequest;
nsString mError;
};
ContinueCursorEvent::ContinueCursorEvent(nsRefPtr<DOMRequest>& aRequest)
{
mRequest.swap(aRequest);
}
ContinueCursorEvent::ContinueCursorEvent(DOMRequest* aRequest)
: mRequest(aRequest)
{
}
already_AddRefed<DeviceStorageFile>
ContinueCursorEvent::GetNextFile()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
nsDOMDeviceStorageCursor* cursor = static_cast<nsDOMDeviceStorageCursor*>(mRequest.get());
nsString cursorStorageType;
cursor->GetStorageType(cursorStorageType);
DeviceStorageTypeChecker* typeChecker = DeviceStorageTypeChecker::CreateOrGet();
if (!typeChecker) {
return nullptr;
}
while (cursor->mFiles.Length() > 0) {
nsRefPtr<DeviceStorageFile> file = cursor->mFiles[0];
cursor->mFiles.RemoveElementAt(0);
if (!typeChecker->Check(cursorStorageType, file->mFile)) {
continue;
}
return file.forget();
}
return nullptr;
}
ContinueCursorEvent::~ContinueCursorEvent() {}
void
ContinueCursorEvent::Continue()
{
if (XRE_GetProcessType() == GeckoProcessType_Default) {
NS_DispatchToMainThread(this);
return;
}
nsRefPtr<DeviceStorageFile> file = GetNextFile();
if (!file) {
// done with enumeration.
NS_DispatchToMainThread(this);
return;
}
nsString fullpath;
nsresult rv = file->mFile->GetPath(fullpath);
if (NS_FAILED(rv)) {
NS_ASSERTION(false, "GetPath failed to return a valid path");
return;
}
nsDOMDeviceStorageCursor* cursor = static_cast<nsDOMDeviceStorageCursor*>(mRequest.get());
nsString cursorStorageType;
cursor->GetStorageType(cursorStorageType);
DeviceStorageRequestChild* child = new DeviceStorageRequestChild(mRequest, file);
child->SetCallback(cursor);
DeviceStorageGetParams params(cursorStorageType, file->mPath, fullpath);
ContentChild::GetSingleton()->SendPDeviceStorageRequestConstructor(child, params);
mRequest = nullptr;
}
NS_IMETHODIMP
ContinueCursorEvent::Run()
{
nsRefPtr<DeviceStorageFile> file = GetNextFile();
nsDOMDeviceStorageCursor* cursor = static_cast<nsDOMDeviceStorageCursor*>(mRequest.get());
jsval val = nsIFileToJsval(cursor->GetOwner(), file);
cursor->mOkToCallContinue = true;
mRequest->FireSuccess(val);
mRequest = nullptr;
return NS_OK;
}
class InitCursorEvent : public nsRunnable
{
public:
InitCursorEvent(DOMRequest* aRequest, DeviceStorageFile* aFile)
: mFile(aFile)
, mRequest(aRequest)
{
}
~InitCursorEvent() {}
NS_IMETHOD Run() {
NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
bool check;
mFile->mFile->IsDirectory(&check);
if (!check) {
nsCOMPtr<PostErrorEvent> event = new PostErrorEvent(mRequest, POST_ERROR_EVENT_FILE_NOT_ENUMERABLE);
NS_DispatchToMainThread(event);
return NS_OK;
}
nsDOMDeviceStorageCursor* cursor = static_cast<nsDOMDeviceStorageCursor*>(mRequest.get());
mFile->CollectFiles(cursor->mFiles, cursor->mSince);
nsCOMPtr<ContinueCursorEvent> event = new ContinueCursorEvent(mRequest);
NS_DispatchToMainThread(event);
return NS_OK;
}
private:
nsRefPtr<DeviceStorageFile> mFile;
nsRefPtr<DOMRequest> mRequest;
};
DOMCI_DATA(DeviceStorageCursor, nsDOMDeviceStorageCursor)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsDOMDeviceStorageCursor)
NS_INTERFACE_MAP_ENTRY(nsIDOMDeviceStorageCursor)
NS_INTERFACE_MAP_ENTRY(nsIContentPermissionRequest)
NS_INTERFACE_MAP_ENTRY(nsIDOMDOMRequest)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMDeviceStorageCursor)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(DeviceStorageCursor)
NS_INTERFACE_MAP_END_INHERITING(DOMRequest)
NS_IMPL_ADDREF_INHERITED(nsDOMDeviceStorageCursor, DOMRequest)
NS_IMPL_RELEASE_INHERITED(nsDOMDeviceStorageCursor, DOMRequest)
nsDOMDeviceStorageCursor::nsDOMDeviceStorageCursor(nsIDOMWindow* aWindow,
nsIPrincipal* aPrincipal,
DeviceStorageFile* aFile,
PRTime aSince)
: DOMRequest(aWindow)
, mOkToCallContinue(false)
, mSince(aSince)
, mFile(aFile)
, mPrincipal(aPrincipal)
{
}
nsDOMDeviceStorageCursor::~nsDOMDeviceStorageCursor()
{
}
void
nsDOMDeviceStorageCursor::GetStorageType(nsAString & aType)
{
aType = mFile->mStorageType;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::GetType(nsACString & aType)
{
return DeviceStorageTypeChecker::GetPermissionForType(mFile->mStorageType, aType);
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::GetAccess(nsACString & aAccess)
{
aAccess = NS_LITERAL_CSTRING("read");
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::GetPrincipal(nsIPrincipal * *aRequestingPrincipal)
{
NS_IF_ADDREF(*aRequestingPrincipal = mPrincipal);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::GetWindow(nsIDOMWindow * *aRequestingWindow)
{
NS_IF_ADDREF(*aRequestingWindow = GetOwner());
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::GetElement(nsIDOMElement * *aRequestingElement)
{
*aRequestingElement = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::Cancel()
{
nsCOMPtr<PostErrorEvent> event = new PostErrorEvent(this, POST_ERROR_EVENT_PERMISSION_DENIED);
NS_DispatchToMainThread(event);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::Allow()
{
if (!mFile->IsSafePath()) {
nsCOMPtr<nsIRunnable> r = new PostErrorEvent(this, POST_ERROR_EVENT_PERMISSION_DENIED);
NS_DispatchToMainThread(r);
return NS_OK;
}
if (XRE_GetProcessType() != GeckoProcessType_Default) {
nsString fullpath;
nsresult rv = mFile->mFile->GetPath(fullpath);
if (NS_FAILED(rv)) {
// just do nothing
return NS_OK;
}
PDeviceStorageRequestChild* child = new DeviceStorageRequestChild(this, mFile);
DeviceStorageEnumerationParams params(mFile->mStorageType, fullpath, mSince);
ContentChild::GetSingleton()->SendPDeviceStorageRequestConstructor(child, params);
return NS_OK;
}
nsCOMPtr<nsIEventTarget> target = do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID);
NS_ASSERTION(target, "Must have stream transport service");
nsCOMPtr<InitCursorEvent> event = new InitCursorEvent(this, mFile);
target->Dispatch(event, NS_DISPATCH_NORMAL);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::Continue()
{
if (!mOkToCallContinue) {
return NS_ERROR_UNEXPECTED;
}
if (mRooted) {
// We call onsuccess multiple times. clear the last
// rooted result.
NS_DROP_JS_OBJECTS(this, nsDOMDeviceStorageCursor);
mResult = JSVAL_VOID;
mDone = false;
mRooted = false;
}
nsCOMPtr<ContinueCursorEvent> event = new ContinueCursorEvent(this);
NS_DispatchToMainThread(event);
mOkToCallContinue = false;
return NS_OK;
}
bool
nsDOMDeviceStorageCursor::Recv__delete__(const bool& allow)
{
if (allow) {
Allow();
}
else {
Cancel();
}
return true;
}
void
nsDOMDeviceStorageCursor::IPDLRelease()
{
Release();
}
void
nsDOMDeviceStorageCursor::RequestComplete()
{
NS_ASSERTION(!mOkToCallContinue, "mOkToCallContinue must be false");
mOkToCallContinue = true;
}
class PostStatResultEvent : public nsRunnable
{
public:
PostStatResultEvent(nsRefPtr<DOMRequest>& aRequest, uint64_t aFreeBytes, uint64_t aTotalBytes)
: mFreeBytes(aFreeBytes)
, mTotalBytes(aTotalBytes)
{
mRequest.swap(aRequest);
}
~PostStatResultEvent() {}
NS_IMETHOD Run()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
nsString state;
state.Assign(NS_LITERAL_STRING("available"));
#ifdef MOZ_WIDGET_GONK
nsresult rv = GetSDCardStatus(state);
if (NS_FAILED(rv)) {
state.Assign(NS_LITERAL_STRING("unavailable"));
}
#endif
nsRefPtr<nsIDOMDeviceStorageStat> domstat = new nsDOMDeviceStorageStat(mFreeBytes, mTotalBytes, state);
jsval result = InterfaceToJsval(mRequest->GetOwner(),
domstat,
&NS_GET_IID(nsIDOMDeviceStorageStat));
mRequest->FireSuccess(result);
mRequest = nullptr;
return NS_OK;
}
private:
uint64_t mFreeBytes, mTotalBytes;
nsString mState;
nsRefPtr<DOMRequest> mRequest;
};
class PostResultEvent : public nsRunnable
{
public:
PostResultEvent(nsRefPtr<DOMRequest>& aRequest, DeviceStorageFile* aFile)
: mFile(aFile)
{
mRequest.swap(aRequest);
}
PostResultEvent(nsRefPtr<DOMRequest>& aRequest, const nsAString & aPath)
: mPath(aPath)
{
mRequest.swap(aRequest);
}
~PostResultEvent() {}
NS_IMETHOD Run()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
jsval result = JSVAL_NULL;
if (mFile) {
result = nsIFileToJsval(mRequest->GetOwner(), mFile);
} else {
result = StringToJsval(mRequest->GetOwner(), mPath);
}
mRequest->FireSuccess(result);
mRequest = nullptr;
return NS_OK;
}
private:
nsRefPtr<DeviceStorageFile> mFile;
nsString mPath;
nsRefPtr<DOMRequest> mRequest;
};
class WriteFileEvent : public nsRunnable
{
public:
WriteFileEvent(nsIDOMBlob* aBlob,
DeviceStorageFile *aFile,
nsRefPtr<DOMRequest>& aRequest)
: mBlob(aBlob)
, mFile(aFile)
{
mRequest.swap(aRequest);
}
~WriteFileEvent() {}
NS_IMETHOD Run()
{
NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
nsCOMPtr<nsIInputStream> stream;
mBlob->GetInternalStream(getter_AddRefs(stream));
bool check = false;
mFile->mFile->Exists(&check);
if (check) {
nsCOMPtr<PostErrorEvent> event = new PostErrorEvent(mRequest, POST_ERROR_EVENT_FILE_EXISTS);
NS_DispatchToMainThread(event);
return NS_OK;
}
nsresult rv = mFile->Write(stream);
if (NS_FAILED(rv)) {
mFile->mFile->Remove(false);
nsCOMPtr<PostErrorEvent> event = new PostErrorEvent(mRequest, POST_ERROR_EVENT_UNKNOWN);
NS_DispatchToMainThread(event);
return NS_OK;
}
nsCOMPtr<PostResultEvent> event = new PostResultEvent(mRequest, mFile->mPath);
NS_DispatchToMainThread(event);
return NS_OK;
}
private:
nsCOMPtr<nsIDOMBlob> mBlob;
nsRefPtr<DeviceStorageFile> mFile;
nsRefPtr<DOMRequest> mRequest;
};
class ReadFileEvent : public nsRunnable
{
public:
ReadFileEvent(DeviceStorageFile* aFile,
nsRefPtr<DOMRequest>& aRequest)
: mFile(aFile)
{
mRequest.swap(aRequest);
}
~ReadFileEvent() {}
NS_IMETHOD Run()
{
NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
nsRefPtr<nsRunnable> r;
if (!mFile->mEditable) {
bool check = false;
mFile->mFile->Exists(&check);
if (!check) {
r = new PostErrorEvent(mRequest, POST_ERROR_EVENT_FILE_DOES_NOT_EXIST);
}
}
if (!r) {
r = new PostResultEvent(mRequest, mFile);
}
NS_DispatchToMainThread(r);
return NS_OK;
}
private:
nsRefPtr<DeviceStorageFile> mFile;
nsRefPtr<DOMRequest> mRequest;
};
class DeleteFileEvent : public nsRunnable
{
public:
DeleteFileEvent(DeviceStorageFile* aFile,
nsRefPtr<DOMRequest>& aRequest)
: mFile(aFile)
{
mRequest.swap(aRequest);
}
~DeleteFileEvent() {}
NS_IMETHOD Run()
{
NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
mFile->Remove();
nsRefPtr<nsRunnable> r;
bool check = false;
mFile->mFile->Exists(&check);
if (check) {
r = new PostErrorEvent(mRequest, POST_ERROR_EVENT_FILE_DOES_NOT_EXIST);
}
else {
r = new PostResultEvent(mRequest, mFile->mPath);
}
NS_DispatchToMainThread(r);
return NS_OK;
}
private:
nsRefPtr<DeviceStorageFile> mFile;
nsRefPtr<DOMRequest> mRequest;
};
class StatFileEvent : public nsRunnable
{
public:
StatFileEvent(DeviceStorageFile* aFile, nsRefPtr<DOMRequest>& aRequest)
: mFile(aFile)
{
mRequest.swap(aRequest);
}
~StatFileEvent() {}
NS_IMETHOD Run()
{
NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
nsCOMPtr<nsIRunnable> r;
uint64_t diskUsage = 0;
DeviceStorageFile::DirectoryDiskUsage(mFile->mFile, &diskUsage, mFile->mStorageType);
int64_t freeSpace = 0;
nsresult rv = mFile->mFile->GetDiskSpaceAvailable(&freeSpace);
if (NS_FAILED(rv)) {
freeSpace = 0;
}
r = new PostStatResultEvent(mRequest, freeSpace, diskUsage);
NS_DispatchToMainThread(r);
return NS_OK;
}
private:
nsRefPtr<DeviceStorageFile> mFile;
nsRefPtr<DOMRequest> mRequest;
};
class DeviceStorageRequest MOZ_FINAL
: public nsIContentPermissionRequest
, public nsIRunnable
, public PCOMContentPermissionRequestChild
{
public:
DeviceStorageRequest(const DeviceStorageRequestType aRequestType,
nsPIDOMWindow *aWindow,
nsIPrincipal *aPrincipal,
DeviceStorageFile *aFile,
DOMRequest* aRequest,
nsDOMDeviceStorage *aDeviceStorage,
nsIDOMEventListener *aListener)
: mRequestType(aRequestType)
, mWindow(aWindow)
, mPrincipal(aPrincipal)
, mFile(aFile)
, mRequest(aRequest)
, mDeviceStorage(aDeviceStorage)
, mListener(aListener) {}
DeviceStorageRequest(const DeviceStorageRequestType aRequestType,
nsPIDOMWindow *aWindow,
nsIPrincipal *aPrincipal,
DeviceStorageFile *aFile,
DOMRequest* aRequest,
nsIDOMBlob *aBlob = nullptr)
: mRequestType(aRequestType)
, mWindow(aWindow)
, mPrincipal(aPrincipal)
, mFile(aFile)
, mRequest(aRequest)
, mBlob(aBlob) {}
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(DeviceStorageRequest, nsIContentPermissionRequest)
NS_IMETHOD Run() {
if (mozilla::Preferences::GetBool("device.storage.prompt.testing", false)) {
Allow();
return NS_OK;
}
if (XRE_GetProcessType() == GeckoProcessType_Content) {
// because owner implements nsITabChild, we can assume that it is
// the one and only TabChild.
TabChild* child = GetTabChildFrom(mWindow->GetDocShell());
if (!child) {
return NS_OK;
}
// Retain a reference so the object isn't deleted without IPDL's knowledge.
// Corresponding release occurs in DeallocPContentPermissionRequest.
AddRef();
nsCString type;
nsresult rv = DeviceStorageTypeChecker::GetPermissionForType(mFile->mStorageType, type);
if (NS_FAILED(rv)) {
return rv;
}
nsCString access;
rv = DeviceStorageTypeChecker::GetAccessForRequest(DeviceStorageRequestType(mRequestType), access);
if (NS_FAILED(rv)) {
return rv;
}
child->SendPContentPermissionRequestConstructor(this, type, access, IPC::Principal(mPrincipal));
Sendprompt();
return NS_OK;
}
nsCOMPtr<nsIContentPermissionPrompt> prompt = do_CreateInstance(NS_CONTENT_PERMISSION_PROMPT_CONTRACTID);
if (prompt) {
prompt->Prompt(this);
}
return NS_OK;
}
NS_IMETHOD GetType(nsACString & aType)
{
nsCString type;
nsresult rv = DeviceStorageTypeChecker::GetPermissionForType(mFile->mStorageType, aType);
if (NS_FAILED(rv)) {
return rv;
}
return NS_OK;
}
NS_IMETHOD GetAccess(nsACString & aAccess)
{
nsresult rv = DeviceStorageTypeChecker::GetAccessForRequest(DeviceStorageRequestType(mRequestType), aAccess);
if (NS_FAILED(rv)) {
return rv;
}
return NS_OK;
}
NS_IMETHOD GetPrincipal(nsIPrincipal * *aRequestingPrincipal)
{
NS_IF_ADDREF(*aRequestingPrincipal = mPrincipal);
return NS_OK;
}
NS_IMETHOD GetWindow(nsIDOMWindow * *aRequestingWindow)
{
NS_IF_ADDREF(*aRequestingWindow = mWindow);
return NS_OK;
}
NS_IMETHOD GetElement(nsIDOMElement * *aRequestingElement)
{
*aRequestingElement = nullptr;
return NS_OK;
}
NS_IMETHOD Cancel()
{
nsCOMPtr<PostErrorEvent> event = new PostErrorEvent(mRequest, POST_ERROR_EVENT_PERMISSION_DENIED);
NS_DispatchToMainThread(event);
return NS_OK;
}
NS_IMETHOD Allow()
{
nsCOMPtr<nsIRunnable> r;
if (!mRequest) {
return NS_ERROR_FAILURE;
}
nsString fullpath;
nsresult rv = mFile->mFile->GetPath(fullpath);
if (NS_FAILED(rv)) {
// just do nothing
return NS_OK;
}
switch(mRequestType) {
case DEVICE_STORAGE_REQUEST_CREATE:
{
if (!mBlob) {
return NS_ERROR_FAILURE;
}
if (XRE_GetProcessType() != GeckoProcessType_Default) {
BlobChild* actor = ContentChild::GetSingleton()->GetOrCreateActorForBlob(mBlob);
if (!actor) {
return NS_ERROR_FAILURE;
}
DeviceStorageAddParams params;
params.blobChild() = actor;
params.type() = mFile->mStorageType;
params.name() = mFile->mPath;
params.fullpath() = fullpath;
PDeviceStorageRequestChild* child = new DeviceStorageRequestChild(mRequest, mFile);
ContentChild::GetSingleton()->SendPDeviceStorageRequestConstructor(child, params);
return NS_OK;
}
r = new WriteFileEvent(mBlob, mFile, mRequest);
break;
}
case DEVICE_STORAGE_REQUEST_READ:
case DEVICE_STORAGE_REQUEST_WRITE:
{
if (XRE_GetProcessType() != GeckoProcessType_Default) {
PDeviceStorageRequestChild* child = new DeviceStorageRequestChild(mRequest, mFile);
DeviceStorageGetParams params(mFile->mStorageType, mFile->mPath, fullpath);
ContentChild::GetSingleton()->SendPDeviceStorageRequestConstructor(child, params);
return NS_OK;
}
r = new ReadFileEvent(mFile, mRequest);
break;
}
case DEVICE_STORAGE_REQUEST_DELETE:
{
if (XRE_GetProcessType() != GeckoProcessType_Default) {
PDeviceStorageRequestChild* child = new DeviceStorageRequestChild(mRequest, mFile);
DeviceStorageDeleteParams params(mFile->mStorageType, fullpath);
ContentChild::GetSingleton()->SendPDeviceStorageRequestConstructor(child, params);
return NS_OK;
}
r = new DeleteFileEvent(mFile, mRequest);
break;
}
case DEVICE_STORAGE_REQUEST_STAT:
{
if (XRE_GetProcessType() != GeckoProcessType_Default) {
PDeviceStorageRequestChild* child = new DeviceStorageRequestChild(mRequest, mFile);
DeviceStorageStatParams params(mFile->mStorageType, fullpath);
ContentChild::GetSingleton()->SendPDeviceStorageRequestConstructor(child, params);
return NS_OK;
}
r = new StatFileEvent(mFile, mRequest);
break;
}
case DEVICE_STORAGE_REQUEST_WATCH:
{
mDeviceStorage->mAllowedToWatchFile = true;
return NS_OK;
}
}
if (r) {
nsCOMPtr<nsIEventTarget> target = do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID);
NS_ASSERTION(target, "Must have stream transport service");
target->Dispatch(r, NS_DISPATCH_NORMAL);
}
return NS_OK;
}
bool Recv__delete__(const bool& allow)
{
if (allow) {
Allow();
}
else {
Cancel();
}
return true;
}
void IPDLRelease()
{
Release();
}
private:
int32_t mRequestType;
nsCOMPtr<nsPIDOMWindow> mWindow;
nsCOMPtr<nsIPrincipal> mPrincipal;
nsRefPtr<DeviceStorageFile> mFile;
nsRefPtr<DOMRequest> mRequest;
nsCOMPtr<nsIDOMBlob> mBlob;
nsRefPtr<nsDOMDeviceStorage> mDeviceStorage;
nsCOMPtr<nsIDOMEventListener> mListener;
};
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DeviceStorageRequest)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIContentPermissionRequest)
NS_INTERFACE_MAP_ENTRY(nsIContentPermissionRequest)
NS_INTERFACE_MAP_ENTRY(nsIRunnable)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(DeviceStorageRequest)
NS_IMPL_CYCLE_COLLECTING_RELEASE(DeviceStorageRequest)
NS_IMPL_CYCLE_COLLECTION_CLASS(DeviceStorageRequest)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(DeviceStorageRequest)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mRequest)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindow)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mBlob)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mDeviceStorage)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mListener)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(DeviceStorageRequest)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mRequest)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindow)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mBlob)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDeviceStorage)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mListener)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_CLASS(nsDOMDeviceStorage)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsDOMDeviceStorage, nsDOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsDOMDeviceStorage, nsDOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
DOMCI_DATA(DeviceStorage, nsDOMDeviceStorage)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsDOMDeviceStorage)
NS_INTERFACE_MAP_ENTRY(nsIDOMDeviceStorage)
NS_INTERFACE_MAP_ENTRY(nsIObserver)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(DeviceStorage)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEventTargetHelper)
NS_IMPL_ADDREF_INHERITED(nsDOMDeviceStorage, nsDOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(nsDOMDeviceStorage, nsDOMEventTargetHelper)
nsDOMDeviceStorage::nsDOMDeviceStorage()
: mIsWatchingFile(false)
, mAllowedToWatchFile(false)
{ }
nsresult
nsDOMDeviceStorage::Init(nsPIDOMWindow* aWindow, const nsAString &aType)
{
NS_ASSERTION(aWindow, "Must have a content dom");
SetRootDirectoryForType(aType);
if (!mRootDirectory) {
return NS_ERROR_NOT_AVAILABLE;
}
BindToOwner(aWindow);
// Grab the principal of the document
nsCOMPtr<nsIDOMDocument> domdoc;
aWindow->GetDocument(getter_AddRefs(domdoc));
nsCOMPtr<nsIDocument> doc = do_QueryInterface(domdoc);
if (!doc) {
return NS_ERROR_FAILURE;
}
mPrincipal = doc->NodePrincipal();
// the 'apps' type is special. We only want this exposed
// if the caller has the "webapps-manage" permission.
if (aType.EqualsLiteral("apps")) {
nsCOMPtr<nsIPermissionManager> permissionManager = do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
NS_ENSURE_TRUE(permissionManager, NS_ERROR_FAILURE);
uint32_t permission;
nsresult rv = permissionManager->TestPermissionFromPrincipal(mPrincipal,
"webapps-manage",
&permission);
if (NS_FAILED(rv) || permission != nsIPermissionManager::ALLOW_ACTION) {
return NS_ERROR_NOT_AVAILABLE;
}
}
return NS_OK;
}
nsDOMDeviceStorage::~nsDOMDeviceStorage()
{
}
void
nsDOMDeviceStorage::Shutdown()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
#ifdef MOZ_WIDGET_GONK
UnregisterForSDCardChanges(this);
#endif
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->RemoveObserver(this, "file-watcher-update");
}
void
nsDOMDeviceStorage::CreateDeviceStoragesFor(nsPIDOMWindow* aWin,
const nsAString &aType,
nsDOMDeviceStorage** aStore)
{
nsRefPtr<nsDOMDeviceStorage> storage = new nsDOMDeviceStorage();
if (NS_SUCCEEDED(storage->Init(aWin, aType))) {
NS_ADDREF(*aStore = storage);
}
}
NS_IMETHODIMP
nsDOMDeviceStorage::Add(nsIDOMBlob *aBlob, nsIDOMDOMRequest * *_retval)
{
if (!aBlob) {
return NS_OK;
}
nsCOMPtr<nsIMIMEService> mimeSvc = do_GetService(NS_MIMESERVICE_CONTRACTID);
if (!mimeSvc) {
return NS_ERROR_FAILURE;
}
// if mimeType isn't set, we will not get a correct
// extension, and AddNamed() will fail. This will post an
// onerror to the requestee.
nsString mimeType;
aBlob->GetType(mimeType);
nsCString extension;
mimeSvc->GetPrimaryExtension(NS_LossyConvertUTF16toASCII(mimeType), EmptyCString(), extension);
// if extension is null here, we will ignore it for now.
// AddNamed() will check the file path and fail. This
// will post an onerror to the requestee.
// possible race here w/ unique filename
char buffer[128];
NS_MakeRandomString(buffer, ArrayLength(buffer));
nsAutoCString path;
path.Assign(nsDependentCString(buffer));
path.Append(".");
path.Append(extension);
return AddNamed(aBlob, NS_ConvertASCIItoUTF16(path), _retval);
}
NS_IMETHODIMP
nsDOMDeviceStorage::AddNamed(nsIDOMBlob *aBlob,
const nsAString & aPath,
nsIDOMDOMRequest * *_retval)
{
// if the blob is null here, bail
if (aBlob == nullptr)
return NS_OK;
nsCOMPtr<nsPIDOMWindow> win = GetOwner();
if (!win) {
return NS_ERROR_UNEXPECTED;
}
DeviceStorageTypeChecker* typeChecker = DeviceStorageTypeChecker::CreateOrGet();
if (!typeChecker) {
return NS_ERROR_FAILURE;
}
nsRefPtr<DOMRequest> request = new DOMRequest(win);
NS_ADDREF(*_retval = request);
nsCOMPtr<nsIRunnable> r;
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mStorageType, mRootDirectory, aPath);
if (!dsf->IsSafePath()) {
r = new PostErrorEvent(request, POST_ERROR_EVENT_PERMISSION_DENIED);
} else if (!typeChecker->Check(mStorageType, dsf->mFile) ||
!typeChecker->Check(mStorageType, aBlob)) {
r = new PostErrorEvent(request, POST_ERROR_EVENT_ILLEGAL_TYPE);
}
else {
r = new DeviceStorageRequest(DEVICE_STORAGE_REQUEST_CREATE,
win, mPrincipal, dsf, request, aBlob);
}
NS_DispatchToMainThread(r);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::Get(const JS::Value & aPath,
JSContext* aCx,
nsIDOMDOMRequest * *_retval)
{
return GetInternal(aPath, aCx, _retval, false);
}
NS_IMETHODIMP
nsDOMDeviceStorage::GetEditable(const JS::Value & aPath,
JSContext* aCx,
nsIDOMDOMRequest * *_retval)
{
return GetInternal(aPath, aCx, _retval, true);
}
nsresult
nsDOMDeviceStorage::GetInternal(const JS::Value & aPath,
JSContext* aCx,
nsIDOMDOMRequest * *_retval,
bool aEditable)
{
nsCOMPtr<nsPIDOMWindow> win = GetOwner();
if (!win) {
return NS_ERROR_UNEXPECTED;
}
nsRefPtr<DOMRequest> request = new DOMRequest(win);
NS_ADDREF(*_retval = request);
nsCOMPtr<nsIRunnable> r;
JSString* jsstr = JS_ValueToString(aCx, aPath);
nsDependentJSString path;
if (!path.init(aCx, jsstr)) {
r = new PostErrorEvent(request, POST_ERROR_EVENT_UNKNOWN);
NS_DispatchToMainThread(r);
return NS_OK;
}
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mStorageType, mRootDirectory, path);
dsf->SetEditable(aEditable);
if (!dsf->IsSafePath()) {
r = new PostErrorEvent(request, POST_ERROR_EVENT_PERMISSION_DENIED);
} else {
r = new DeviceStorageRequest(aEditable ? DEVICE_STORAGE_REQUEST_WRITE : DEVICE_STORAGE_REQUEST_READ,
win, mPrincipal, dsf, request);
}
NS_DispatchToMainThread(r);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::Delete(const JS::Value & aPath, JSContext* aCx, nsIDOMDOMRequest * *_retval)
{
nsCOMPtr<nsIRunnable> r;
nsCOMPtr<nsPIDOMWindow> win = GetOwner();
if (!win) {
return NS_ERROR_UNEXPECTED;
}
nsRefPtr<DOMRequest> request = new DOMRequest(win);
NS_ADDREF(*_retval = request);
JSString* jsstr = JS_ValueToString(aCx, aPath);
nsDependentJSString path;
if (!path.init(aCx, jsstr)) {
r = new PostErrorEvent(request, POST_ERROR_EVENT_UNKNOWN);
NS_DispatchToMainThread(r);
return NS_OK;
}
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mStorageType, mRootDirectory, path);
if (!dsf->IsSafePath()) {
r = new PostErrorEvent(request, POST_ERROR_EVENT_PERMISSION_DENIED);
}
else {
r = new DeviceStorageRequest(DEVICE_STORAGE_REQUEST_DELETE,
win, mPrincipal, dsf, request);
}
NS_DispatchToMainThread(r);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::Stat(nsIDOMDOMRequest** aRetval)
{
nsCOMPtr<nsPIDOMWindow> win = GetOwner();
if (!win) {
return NS_ERROR_UNEXPECTED;
}
nsRefPtr<DOMRequest> request = new DOMRequest(win);
NS_ADDREF(*aRetval = request);
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mStorageType, mRootDirectory);
nsCOMPtr<nsIRunnable> r = new DeviceStorageRequest(DEVICE_STORAGE_REQUEST_STAT,
win,
mPrincipal,
dsf,
request);
NS_DispatchToMainThread(r);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::GetRootDirectory(nsIFile** aRootDirectory)
{
if (!mRootDirectory) {
return NS_ERROR_FAILURE;
}
return mRootDirectory->Clone(aRootDirectory);
}
NS_IMETHODIMP
nsDOMDeviceStorage::Enumerate(const JS::Value & aName,
const JS::Value & aOptions,
JSContext* aCx,
uint8_t aArgc,
nsIDOMDeviceStorageCursor** aRetval)
{
return EnumerateInternal(aName, aOptions, aCx, aArgc, false, aRetval);
}
NS_IMETHODIMP
nsDOMDeviceStorage::EnumerateEditable(const JS::Value & aName,
const JS::Value & aOptions,
JSContext* aCx,
uint8_t aArgc,
nsIDOMDeviceStorageCursor** aRetval)
{
return EnumerateInternal(aName, aOptions, aCx, aArgc, true, aRetval);
}
static PRTime
ExtractDateFromOptions(JSContext* aCx, const JS::Value& aOptions)
{
PRTime result = 0;
DeviceStorageEnumerationParameters params;
if (!JSVAL_IS_VOID(aOptions) && !aOptions.isNull()) {
nsresult rv = params.Init(aCx, &aOptions);
if (NS_SUCCEEDED(rv) && !JSVAL_IS_VOID(params.since) && !params.since.isNull() && params.since.isObject()) {
JSObject* obj = JSVAL_TO_OBJECT(params.since);
if (JS_ObjectIsDate(aCx, obj) && js_DateIsValid(obj)) {
result = js_DateGetMsecSinceEpoch(obj);
}
}
}
return result;
}
nsresult
nsDOMDeviceStorage::EnumerateInternal(const JS::Value & aName,
const JS::Value & aOptions,
JSContext* aCx,
uint8_t aArgc,
bool aEditable,
nsIDOMDeviceStorageCursor** aRetval)
{
nsCOMPtr<nsPIDOMWindow> win = GetOwner();
if (!win)
return NS_ERROR_UNEXPECTED;
PRTime since = 0;
nsString path;
path.SetIsVoid(true);
if (aArgc > 0) {
// inspect the first value to see if it is a string
if (JSVAL_IS_STRING(aName)) {
JSString* jsstr = JS_ValueToString(aCx, aName);
nsDependentJSString jspath;
jspath.init(aCx, jsstr);
path.Assign(jspath);
} else if (!JSVAL_IS_PRIMITIVE(aName)) {
// it also might be an options object
since = ExtractDateFromOptions(aCx, aName);
} else {
return NS_ERROR_FAILURE;
}
if (aArgc == 2 && (JSVAL_IS_VOID(aOptions) || aOptions.isNull() || !aOptions.isObject())) {
return NS_ERROR_FAILURE;
}
since = ExtractDateFromOptions(aCx, aOptions);
}
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mStorageType, mRootDirectory, path);
dsf->SetEditable(aEditable);
nsRefPtr<nsDOMDeviceStorageCursor> cursor = new nsDOMDeviceStorageCursor(win, mPrincipal,
dsf, since);
nsRefPtr<DeviceStorageCursorRequest> r = new DeviceStorageCursorRequest(cursor);
NS_ADDREF(*aRetval = cursor);
if (mozilla::Preferences::GetBool("device.storage.prompt.testing", false)) {
r->Allow();
return NS_OK;
}
if (XRE_GetProcessType() == GeckoProcessType_Content) {
// because owner implements nsITabChild, we can assume that it is
// the one and only TabChild.
TabChild* child = GetTabChildFrom(win->GetDocShell());
if (!child)
return NS_OK;
// Retain a reference so the object isn't deleted without IPDL's knowledge.
// Corresponding release occurs in DeallocPContentPermissionRequest.
r->AddRef();
nsCString type;
nsresult rv = DeviceStorageTypeChecker::GetPermissionForType(mStorageType, type);
if (NS_FAILED(rv)) {
return rv;
}
child->SendPContentPermissionRequestConstructor(r, type, NS_LITERAL_CSTRING("read"), IPC::Principal(mPrincipal));
r->Sendprompt();
return NS_OK;
}
nsCOMPtr<nsIContentPermissionPrompt> prompt = do_CreateInstance(NS_CONTENT_PERMISSION_PROMPT_CONTRACTID);
if (prompt) {
prompt->Prompt(r);
}
return NS_OK;
}
#ifdef MOZ_WIDGET_GONK
void
nsDOMDeviceStorage::DispatchMountChangeEvent(nsAString& aType)
{
nsCOMPtr<nsIDOMEvent> event;
NS_NewDOMDeviceStorageChangeEvent(getter_AddRefs(event), nullptr, nullptr);
nsCOMPtr<nsIDOMDeviceStorageChangeEvent> ce = do_QueryInterface(event);
nsresult rv = ce->InitDeviceStorageChangeEvent(NS_LITERAL_STRING("change"),
true, false,
NS_LITERAL_STRING(""),
aType);
if (NS_FAILED(rv)) {
return;
}
bool ignore;
DispatchEvent(ce, &ignore);
}
#endif
DOMCI_DATA(DeviceStorageStat, nsDOMDeviceStorageStat)
NS_INTERFACE_MAP_BEGIN(nsDOMDeviceStorageStat)
NS_INTERFACE_MAP_ENTRY(nsIDOMDeviceStorageStat)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(DeviceStorageStat)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsDOMDeviceStorageStat)
NS_IMPL_RELEASE(nsDOMDeviceStorageStat)
nsDOMDeviceStorageStat::nsDOMDeviceStorageStat(uint64_t aFreeBytes, uint64_t aTotalBytes, nsAString& aState)
: mFreeBytes(aFreeBytes)
, mTotalBytes(aTotalBytes)
, mState(aState)
{
}
nsDOMDeviceStorageStat::~nsDOMDeviceStorageStat()
{
}
NS_IMETHODIMP
nsDOMDeviceStorageStat::GetTotalBytes(uint64_t *aTotalBytes)
{
*aTotalBytes = mTotalBytes;
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageStat::GetFreeBytes(uint64_t *aFreeBytes)
{
*aFreeBytes = mFreeBytes;
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageStat::GetState(nsAString& aState)
{
aState.Assign(mState);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::Observe(nsISupports *aSubject, const char *aTopic, const PRUnichar *aData)
{
if (!strcmp(aTopic, "file-watcher-update")) {
DeviceStorageFile* file = static_cast<DeviceStorageFile*>(aSubject);
Notify(NS_ConvertUTF16toUTF8(aData).get(), file);
return NS_OK;
}
#ifdef MOZ_WIDGET_GONK
else if (!strcmp(aTopic, NS_VOLUME_STATE_CHANGED)) {
nsCOMPtr<nsIVolume> vol = do_QueryInterface(aSubject);
if (!vol) {
return NS_OK;
}
nsString volName;
vol->GetName(volName);
if (!volName.EqualsLiteral("sdcard")) {
return NS_OK;
}
int32_t state;
nsresult rv = vol->GetState(&state);
if (NS_FAILED(rv)) {
return NS_OK;
}
nsString type;
if (state == nsIVolume::STATE_MOUNTED) {
type.Assign(NS_LITERAL_STRING("available"));
} else if (state == nsIVolume::STATE_SHARED || state == nsIVolume::STATE_SHAREDMNT) {
type.Assign(NS_LITERAL_STRING("shared"));
} else if (state == nsIVolume::STATE_NOMEDIA || state == nsIVolume::STATE_UNMOUNTING) {
type.Assign(NS_LITERAL_STRING("unavailable"));
} else {
// ignore anything else.
return NS_OK;
}
DispatchMountChangeEvent(type);
return NS_OK;
}
#endif
return NS_OK;
}
nsresult
nsDOMDeviceStorage::Notify(const char* aReason, DeviceStorageFile* aFile)
{
if (!mAllowedToWatchFile) {
return NS_OK;
}
if (!mStorageType.Equals(aFile->mStorageType)) {
// Ignore this
return NS_OK;
}
if (!mRootDirectory) {
return NS_ERROR_FAILURE;
}
nsString rootpath;
nsresult rv = mRootDirectory->GetPath(rootpath);
if (NS_FAILED(rv)) {
return NS_OK;
}
nsString fullpath;
rv = aFile->mFile->GetPath(fullpath);
if (NS_FAILED(rv)) {
return NS_OK;
}
NS_ASSERTION(fullpath.Length() >= rootpath.Length(), "Root path longer than full path!");
nsAString::size_type len = rootpath.Length() + 1; // +1 for the trailing /
nsDependentSubstring newPath (fullpath, len, fullpath.Length() - len);
nsCOMPtr<nsIDOMEvent> event;
NS_NewDOMDeviceStorageChangeEvent(getter_AddRefs(event), nullptr, nullptr);
nsCOMPtr<nsIDOMDeviceStorageChangeEvent> ce = do_QueryInterface(event);
nsString reason;
reason.AssignWithConversion(aReason);
rv = ce->InitDeviceStorageChangeEvent(NS_LITERAL_STRING("change"), true, false, newPath, reason);
NS_ENSURE_SUCCESS(rv, rv);
bool ignore;
DispatchEvent(ce, &ignore);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::AddEventListener(const nsAString & aType,
nsIDOMEventListener *aListener,
bool aUseCapture,
bool aWantsUntrusted,
uint8_t aArgc)
{
nsCOMPtr<nsPIDOMWindow> win = GetOwner();
if (!win) {
return NS_ERROR_UNEXPECTED;
}
nsRefPtr<DOMRequest> request = new DOMRequest(win);
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mStorageType, mRootDirectory);
nsCOMPtr<nsIRunnable> r = new DeviceStorageRequest(DEVICE_STORAGE_REQUEST_WATCH,
win, mPrincipal, dsf, request, this, aListener);
NS_DispatchToMainThread(r);
return nsDOMEventTargetHelper::AddEventListener(aType, aListener, aUseCapture, aWantsUntrusted, aArgc);
}
NS_IMETHODIMP
nsDOMDeviceStorage::AddSystemEventListener(const nsAString & aType,
nsIDOMEventListener *aListener,
bool aUseCapture,
bool aWantsUntrusted,
uint8_t aArgc)
{
if (!mIsWatchingFile) {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->AddObserver(this, "file-watcher-update", false);
mIsWatchingFile = true;
}
return nsDOMDeviceStorage::AddEventListener(aType,aListener,aUseCapture,aWantsUntrusted, aArgc);
}
NS_IMETHODIMP
nsDOMDeviceStorage::RemoveEventListener(const nsAString & aType,
nsIDOMEventListener *aListener,
bool aUseCapture)
{
nsDOMEventTargetHelper::RemoveEventListener(aType, aListener, false);
if (mIsWatchingFile && !HasListenersFor(nsGkAtoms::onchange)) {
mIsWatchingFile = false;
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->RemoveObserver(this, "file-watcher-update");
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::RemoveSystemEventListener(const nsAString & aType,
nsIDOMEventListener *aListener,
bool aUseCapture)
{
return nsDOMDeviceStorage::RemoveEventListener(aType, aListener, aUseCapture);
}
NS_IMETHODIMP
nsDOMDeviceStorage::DispatchEvent(nsIDOMEvent *aEvt,
bool *aRetval)
{
return nsDOMEventTargetHelper::DispatchEvent(aEvt, aRetval);
}
nsIDOMEventTarget *
nsDOMDeviceStorage::GetTargetForDOMEvent()
{
return nsDOMEventTargetHelper::GetTargetForDOMEvent();
}
nsIDOMEventTarget *
nsDOMDeviceStorage::GetTargetForEventTargetChain()
{
return nsDOMEventTargetHelper::GetTargetForEventTargetChain();
}
nsresult
nsDOMDeviceStorage::PreHandleEvent(nsEventChainPreVisitor & aVisitor)
{
return nsDOMEventTargetHelper::PreHandleEvent(aVisitor);
}
nsresult
nsDOMDeviceStorage::WillHandleEvent(nsEventChainPostVisitor & aVisitor)
{
return nsDOMEventTargetHelper::WillHandleEvent(aVisitor);
}
nsresult
nsDOMDeviceStorage::PostHandleEvent(nsEventChainPostVisitor & aVisitor)
{
return nsDOMEventTargetHelper::PostHandleEvent(aVisitor);
}
nsresult
nsDOMDeviceStorage::DispatchDOMEvent(nsEvent *aEvent,
nsIDOMEvent *aDOMEvent,
nsPresContext *aPresContext,
nsEventStatus *aEventStatus)
{
return nsDOMEventTargetHelper::DispatchDOMEvent(aEvent,
aDOMEvent,
aPresContext,
aEventStatus);
}
nsEventListenerManager *
nsDOMDeviceStorage::GetListenerManager(bool aMayCreate)
{
return nsDOMEventTargetHelper::GetListenerManager(aMayCreate);
}
nsIScriptContext *
nsDOMDeviceStorage::GetContextForEventHandlers(nsresult *aRv)
{
return nsDOMEventTargetHelper::GetContextForEventHandlers(aRv);
}
JSContext *
nsDOMDeviceStorage::GetJSContextForEventHandlers()
{
return nsDOMEventTargetHelper::GetJSContextForEventHandlers();
}
NS_IMPL_EVENT_HANDLER(nsDOMDeviceStorage, change)
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