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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 "nsDeviceStorage.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"
// Microsoft's API Name hackery sucks
#undef CreateEvent
using namespace mozilla::dom;
using namespace mozilla::dom::devicestorage;
#include "nsDirectoryServiceDefs.h"
DeviceStorageFile::DeviceStorageFile(nsIFile* aFile, const nsAString& aPath)
: mPath(aPath)
, 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();
}
DeviceStorageFile::DeviceStorageFile(nsIFile* aFile)
: 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));
}
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(nsIDOMBlob* aBlob)
{
nsresult rv = mFile->Create(nsIFile::NORMAL_FILE_TYPE, 00600);
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsIInputStream> stream;
aBlob->GetInternalStream(getter_AddRefs(stream));
PRUint32 bufSize;
stream->Available(&bufSize);
nsCOMPtr<nsIOutputStream> outputStream;
NS_NewLocalFileOutputStream(getter_AddRefs(outputStream), mFile);
if (!outputStream) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIOutputStream> bufferedOutputStream;
NS_NewBufferedOutputStream(getter_AddRefs(bufferedOutputStream),
outputStream,
4096*4);
if (!bufferedOutputStream) {
return NS_ERROR_FAILURE;
}
PRUint32 wrote;
bufferedOutputStream->WriteFrom(stream, bufSize, &wrote);
bufferedOutputStream->Close();
outputStream->Close();
if (bufSize != wrote) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult
DeviceStorageFile::Write(InfallibleTArray<PRUint8>& aBits) {
nsresult rv = mFile->Create(nsIFile::NORMAL_FILE_TYPE, 00600);
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsIOutputStream> outputStream;
NS_NewLocalFileOutputStream(getter_AddRefs(outputStream), mFile);
if (!outputStream) {
return NS_ERROR_FAILURE;
}
PRUint32 wrote;
outputStream->Write((char*) aBits.Elements(), aBits.Length(), &wrote);
outputStream->Close();
if (aBits.Length() != wrote) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
void
DeviceStorageFile::CollectFiles(nsTArray<nsRefPtr<DeviceStorageFile> > &aFiles,
PRUint64 aSince)
{
nsString rootPath;
mFile->GetPath(rootPath);
return collectFilesInternal(aFiles, aSince, rootPath);
}
void
DeviceStorageFile::collectFilesInternal(nsTArray<nsRefPtr<DeviceStorageFile> > &aFiles,
PRUint64 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) {
PRInt64 msecs;
f->GetLastModifiedTime(&msecs);
if (msecs < aSince) {
continue;
}
bool isDir;
f->IsDirectory(&isDir);
bool isFile;
f->IsFile(&isFile);
nsString fullpath;
f->GetPath(fullpath);
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(f);
dsf.SetPath(newPath);
dsf.collectFilesInternal(aFiles, aSince, aRootPath);
} else if (isFile) {
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(f);
dsf->SetPath(newPath);
aFiles.AppendElement(dsf);
}
}
}
NS_IMPL_THREADSAFE_ISUPPORTS0(DeviceStorageFile)
// TODO - eventually, we will want to factor this method
// out into different system specific subclasses (or
// something)
PRInt32
nsDOMDeviceStorage::SetRootFileForType(const nsAString& aType, const PRInt32 aIndex)
{
PRInt32 typeResult = DEVICE_STORAGE_TYPE_DEFAULT;
nsCOMPtr<nsIFile> f;
nsCOMPtr<nsIProperties> dirService = do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID);
NS_ASSERTION(dirService, "Must have directory service");
#ifdef MOZ_WIDGET_GONK
// check that /sdcard exists, if it doesn't go no further.
NS_NewLocalFile(NS_LITERAL_STRING("/sdcard"), false, getter_AddRefs(f));
bool check = false;
f->Exists(&check);
if (!check) {
mFile = nsnull;
return typeResult;
}
f = nsnull;
#endif
// Picture directory
if (aType.Equals(NS_LITERAL_STRING("pictures"))) {
#ifdef MOZ_WIDGET_GONK
if (aIndex == 0) {
NS_NewLocalFile(NS_LITERAL_STRING("/sdcard/DCIM"), false, getter_AddRefs(f));
}
#elif defined (MOZ_WIDGET_COCOA)
if (aIndex == 0) {
dirService->Get(NS_OSX_PICTURE_DOCUMENTS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
}
#elif defined (XP_UNIX)
if (aIndex == 0) {
dirService->Get(NS_UNIX_XDG_PICTURES_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
}
#endif
}
// Video directory
if (aType.Equals(NS_LITERAL_STRING("videos"))) {
#ifdef MOZ_WIDGET_GONK
if (aIndex == 0) {
NS_NewLocalFile(NS_LITERAL_STRING("/sdcard/Movies"), false, getter_AddRefs(f));
}
#elif defined (MOZ_WIDGET_COCOA)
if (aIndex == 0) {
dirService->Get(NS_OSX_MOVIE_DOCUMENTS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
}
#elif defined (XP_UNIX)
if (aIndex == 0) {
dirService->Get(NS_UNIX_XDG_VIDEOS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
}
#endif
}
// Music directory
if (aType.Equals(NS_LITERAL_STRING("music"))) {
#ifdef MOZ_WIDGET_GONK
if (aIndex == 0) {
NS_NewLocalFile(NS_LITERAL_STRING("/sdcard/Music"), false, getter_AddRefs(f));
}
#elif defined (MOZ_WIDGET_COCOA)
if (aIndex == 0) {
dirService->Get(NS_OSX_MUSIC_DOCUMENTS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
}
#elif defined (XP_UNIX)
if (aIndex == 0) {
dirService->Get(NS_UNIX_XDG_MUSIC_DIR, NS_GET_IID(nsIFile), getter_AddRefs(f));
}
#endif
}
// in testing, we have access to a few more directory locations
if (mozilla::Preferences::GetBool("device.storage.testing", false)) {
// testing directory
if (aType.Equals(NS_LITERAL_STRING("testing")) && aIndex == 0) {
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);
}
}
}
mFile = f;
return typeResult;
}
static jsval nsIFileToJsval(nsPIDOMWindow* aWindow, DeviceStorageFile* aFile)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aWindow, "Null Window");
if (aFile->mEditable) {
// TODO - needs janv's file handle support.
return JSVAL_NULL;
}
if (aFile == nsnull) {
return JSVAL_NULL;
}
nsCOMPtr<nsIDOMBlob> blob = new nsDOMFileFile(aFile->mFile, aFile->mPath);
return BlobToJsval(aWindow, blob);
}
jsval BlobToJsval(nsPIDOMWindow* aWindow, nsIDOMBlob* aBlob)
{
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 wrappedFile;
nsresult rv = nsContentUtils::WrapNative(cx,
JS_GetGlobalObject(cx),
aBlob,
&NS_GET_IID(nsIDOMFile),
&wrappedFile);
if (NS_FAILED(rv)) {
return JSVAL_NULL;
}
return wrappedFile;
}
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_NSCOMPTR(mCursor)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(DeviceStorageCursorRequest)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mCursor, nsIDOMDeviceStorageCursor)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
class PostErrorEvent : public nsRunnable
{
public:
PostErrorEvent(nsRefPtr<DOMRequest>& aRequest, const char* aMessage, DeviceStorageFile* aFile)
{
mRequest.swap(aRequest);
BuildErrorString(aMessage, aFile);
}
PostErrorEvent(DOMRequest* aRequest, const char* aMessage, DeviceStorageFile* aFile)
: mRequest(aRequest)
{
BuildErrorString(aMessage, aFile);
}
~PostErrorEvent() {}
void BuildErrorString(const char* aMessage, DeviceStorageFile* aFile)
{
nsAutoString fullPath;
if (aFile && aFile->mFile) {
aFile->mFile->GetPath(fullPath);
}
else {
fullPath.Assign(NS_LITERAL_STRING("null file"));
}
mError = NS_ConvertASCIItoUTF16(aMessage);
mError.Append(NS_LITERAL_STRING(" file path = "));
mError.Append(fullPath.get());
mError.Append(NS_LITERAL_STRING(" path = "));
if (aFile) {
mError.Append(aFile->mPath);
}
else {
mError.Append(NS_LITERAL_STRING("null path"));
}
}
NS_IMETHOD Run()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
mRequest->FireError(mError);
mRequest = nsnull;
return NS_OK;
}
private:
nsRefPtr<DOMRequest> mRequest;
nsString mError;
};
ContinueCursorEvent::ContinueCursorEvent(nsRefPtr<DOMRequest>& aRequest)
{
mRequest.swap(aRequest);
}
ContinueCursorEvent::ContinueCursorEvent(DOMRequest* aRequest)
: mRequest(aRequest)
{
}
ContinueCursorEvent::~ContinueCursorEvent() {}
NS_IMETHODIMP
ContinueCursorEvent::Run() {
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
jsval val;
nsDOMDeviceStorageCursor* cursor = static_cast<nsDOMDeviceStorageCursor*>(mRequest.get());
if (cursor->mFiles.Length() == 0) {
val = JSVAL_NULL;
}
else {
nsRefPtr<DeviceStorageFile> file = cursor->mFiles[0];
cursor->mFiles.RemoveElementAt(0);
// todo, this blob needs to be opened in the parent. This will be signifincally easier when bent lands
val = nsIFileToJsval(cursor->GetOwner(), file);
cursor->mOkToCallContinue = true;
}
mRequest->FireSuccess(val);
mRequest = nsnull;
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,
mFile);
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,
nsIURI* aURI,
DeviceStorageFile* aFile,
PRUint64 aSince)
: DOMRequest(aWindow)
, mOkToCallContinue(false)
, mSince(aSince)
, mFile(aFile)
, mURI(aURI)
{
}
nsDOMDeviceStorageCursor::~nsDOMDeviceStorageCursor()
{
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::GetType(nsACString & aType)
{
aType = "device-storage";
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::GetUri(nsIURI * *aRequestingURI)
{
NS_IF_ADDREF(*aRequestingURI = mURI);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::GetWindow(nsIDOMWindow * *aRequestingWindow)
{
NS_IF_ADDREF(*aRequestingWindow = GetOwner());
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::GetElement(nsIDOMElement * *aRequestingElement)
{
*aRequestingElement = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::Cancel()
{
nsCOMPtr<PostErrorEvent> event = new PostErrorEvent(this,
POST_ERROR_EVENT_PERMISSION_DENIED,
mFile);
NS_DispatchToMainThread(event);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorageCursor::Allow()
{
if (!mFile->IsSafePath()) {
nsCOMPtr<nsIRunnable> r = new PostErrorEvent(this,
POST_ERROR_EVENT_ILLEGAL_FILE_NAME,
mFile);
NS_DispatchToMainThread(r);
return NS_OK;
}
if (XRE_GetProcessType() != GeckoProcessType_Default) {
nsString fullpath;
mFile->mFile->GetPath(fullpath);
PDeviceStorageRequestChild* child = new DeviceStorageRequestChild(this, mFile);
DeviceStorageEnumerationParams params(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();
}
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 = nsnull;
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!");
nsresult rv = mFile->Write(mBlob);
if (NS_FAILED(rv)) {
mFile->mFile->Remove(false);
nsCOMPtr<PostErrorEvent> event = new PostErrorEvent(mRequest,
POST_ERROR_EVENT_UNKNOWN,
mFile);
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, mFile);
}
}
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->mFile->Remove(true);
nsRefPtr<nsRunnable> r;
bool check = false;
mFile->mFile->Exists(&check);
if (check) {
r = new PostErrorEvent(mRequest, POST_ERROR_EVENT_UNKNOWN, mFile);
}
else {
r = new PostResultEvent(mRequest, mFile->mPath);
}
NS_DispatchToMainThread(r);
return NS_OK;
}
private:
nsRefPtr<DeviceStorageFile> mFile;
nsRefPtr<DOMRequest> mRequest;
};
class DeviceStorageRequest MOZ_FINAL
: public nsIContentPermissionRequest
, public nsIRunnable
, public PCOMContentPermissionRequestChild
{
public:
enum {
DEVICE_STORAGE_REQUEST_READ,
DEVICE_STORAGE_REQUEST_WRITE,
DEVICE_STORAGE_REQUEST_DELETE
};
DeviceStorageRequest(const PRInt32 aRequestType,
nsPIDOMWindow *aWindow,
nsIURI *aURI,
DeviceStorageFile *aFile,
DOMRequest* aRequest,
nsIDOMBlob *aBlob = nsnull)
: mRequestType(aRequestType)
, mWindow(aWindow)
, mURI(aURI)
, 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 false;
// Retain a reference so the object isn't deleted without IPDL's knowledge.
// Corresponding release occurs in DeallocPContentPermissionRequest.
AddRef();
nsCString type = NS_LITERAL_CSTRING("device-storage");
child->SendPContentPermissionRequestConstructor(this, type, IPC::URI(mURI));
Sendprompt();
return NS_OK;
}
nsCOMPtr<nsIContentPermissionPrompt> prompt = do_GetService(NS_CONTENT_PERMISSION_PROMPT_CONTRACTID);
if (prompt) {
prompt->Prompt(this);
}
return NS_OK;
}
NS_IMETHOD GetType(nsACString & aType)
{
aType = "device-storage";
return NS_OK;
}
NS_IMETHOD GetUri(nsIURI * *aRequestingURI)
{
NS_IF_ADDREF(*aRequestingURI = mURI);
return NS_OK;
}
NS_IMETHOD GetWindow(nsIDOMWindow * *aRequestingWindow)
{
NS_IF_ADDREF(*aRequestingWindow = mWindow);
return NS_OK;
}
NS_IMETHOD GetElement(nsIDOMElement * *aRequestingElement)
{
*aRequestingElement = nsnull;
return NS_OK;
}
NS_IMETHOD Cancel()
{
nsCOMPtr<PostErrorEvent> event = new PostErrorEvent(mRequest,
POST_ERROR_EVENT_PERMISSION_DENIED,
mFile);
NS_DispatchToMainThread(event);
return NS_OK;
}
NS_IMETHOD Allow()
{
nsCOMPtr<nsIRunnable> r;
if (!mRequest) {
return NS_ERROR_FAILURE;
}
nsString fullpath;
mFile->mFile->GetPath(fullpath);
switch(mRequestType) {
case DEVICE_STORAGE_REQUEST_WRITE:
{
if (!mBlob) {
return NS_ERROR_FAILURE;
}
if (XRE_GetProcessType() != GeckoProcessType_Default) {
PDeviceStorageRequestChild* child = new DeviceStorageRequestChild(mRequest, mFile);
nsCOMPtr<nsIInputStream> stream;
mBlob->GetInternalStream(getter_AddRefs(stream));
InfallibleTArray<PRUint8> bits;
PRUint32 bufSize, numRead;
stream->Available(&bufSize);
bits.SetCapacity(bufSize);
void* buffer = (void*) bits.Elements();
stream->Read((char*)buffer, bufSize, &numRead);
DeviceStorageAddParams params(fullpath, bits);
ContentChild::GetSingleton()->SendPDeviceStorageRequestConstructor(child, params);
return NS_OK;
}
r = new WriteFileEvent(mBlob, mFile, mRequest);
break;
}
case DEVICE_STORAGE_REQUEST_READ:
{
if (XRE_GetProcessType() != GeckoProcessType_Default) {
PDeviceStorageRequestChild* child = new DeviceStorageRequestChild(mRequest, mFile);
DeviceStorageGetParams params(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(fullpath);
ContentChild::GetSingleton()->SendPDeviceStorageRequestConstructor(child, params);
return NS_OK;
}
r = new DeleteFileEvent(mFile, mRequest);
break;
}
}
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:
PRInt32 mRequestType;
nsCOMPtr<nsPIDOMWindow> mWindow;
nsCOMPtr<nsIURI> mURI;
nsRefPtr<DeviceStorageFile> mFile;
nsRefPtr<DOMRequest> mRequest;
nsCOMPtr<nsIDOMBlob> mBlob;
};
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_NSCOMPTR(mRequest)
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mWindow)
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mBlob)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(DeviceStorageRequest)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mRequest, nsIDOMDOMRequest)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mWindow, nsPIDOMWindow)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mBlob, nsIDOMBlob)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
DOMCI_DATA(DeviceStorage, nsDOMDeviceStorage)
NS_INTERFACE_MAP_BEGIN(nsDOMDeviceStorage)
NS_INTERFACE_MAP_ENTRY(nsIDOMDeviceStorage)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMDeviceStorage)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(DeviceStorage)
NS_INTERFACE_MAP_END
NS_IMPL_THREADSAFE_ADDREF(nsDOMDeviceStorage)
NS_IMPL_THREADSAFE_RELEASE(nsDOMDeviceStorage)
nsDOMDeviceStorage::nsDOMDeviceStorage()
: mStorageType(DEVICE_STORAGE_TYPE_DEFAULT)
{
}
nsresult
nsDOMDeviceStorage::Init(nsPIDOMWindow* aWindow, const nsAString &aType, const PRInt32 aIndex)
{
NS_ASSERTION(aWindow, "Must have a content dom");
mStorageType = SetRootFileForType(aType, aIndex);
if (!mFile) {
return NS_ERROR_NOT_AVAILABLE;
}
mOwner = do_GetWeakReference(aWindow);
if (!mOwner) {
return NS_ERROR_FAILURE;
}
// Grab the uri of the document
nsCOMPtr<nsIDOMDocument> domdoc;
aWindow->GetDocument(getter_AddRefs(domdoc));
nsCOMPtr<nsIDocument> doc = do_QueryInterface(domdoc);
if (!doc) {
return NS_ERROR_FAILURE;
}
doc->NodePrincipal()->GetURI(getter_AddRefs(mURI));
return NS_OK;
}
nsDOMDeviceStorage::~nsDOMDeviceStorage()
{
}
void
nsDOMDeviceStorage::CreateDeviceStoragesFor(nsPIDOMWindow* aWin,
const nsAString &aType,
nsIVariant** _retval)
{
nsTArray<nsRefPtr<nsIDOMDeviceStorage> > stores;
PRInt32 index = 0;
while (1) {
nsresult rv;
nsRefPtr<nsDOMDeviceStorage> storage = new nsDOMDeviceStorage();
rv = storage->Init(aWin, aType, index++);
if (NS_FAILED(rv))
break;
stores.AppendElement(storage);
}
nsCOMPtr<nsIWritableVariant> result = do_CreateInstance("@mozilla.org/variant;1");
if (!result) {
return;
}
result->SetAsArray(nsIDataType::VTYPE_INTERFACE,
&NS_GET_IID(nsIDOMDeviceStorage),
stores.Length(),
const_cast<void*>(static_cast<const void*>(stores.Elements())));
NS_ADDREF(*_retval = result);
}
NS_IMETHODIMP
nsDOMDeviceStorage::GetType(nsAString & aType)
{
switch(mStorageType) {
case DEVICE_STORAGE_TYPE_EXTERNAL:
aType.AssignLiteral("external");
break;
case DEVICE_STORAGE_TYPE_SHARED:
aType.AssignLiteral("shared");
break;
case DEVICE_STORAGE_TYPE_DEFAULT:
default:
aType.AssignLiteral("default");
break;
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::Add(nsIDOMBlob *aBlob, nsIDOMDOMRequest * *_retval NS_OUTPARAM)
{
// possible race here w/ unique filename
char buffer[128];
NS_MakeRandomString(buffer, 128);
nsString path;
path.AssignWithConversion(nsDependentCString(buffer));
return AddNamed(aBlob, path, _retval);
}
NS_IMETHODIMP
nsDOMDeviceStorage::AddNamed(nsIDOMBlob *aBlob,
const nsAString & aPath,
nsIDOMDOMRequest * *_retval NS_OUTPARAM)
{
// if the blob is null here, bail
if (aBlob == nsnull)
return NS_OK;
nsCOMPtr<nsPIDOMWindow> win = do_QueryReferent(mOwner);
if (!win) {
return NS_ERROR_UNEXPECTED;
}
nsRefPtr<DOMRequest> request = new DOMRequest(win);
NS_ADDREF(*_retval = request);
nsCOMPtr<nsIRunnable> r;
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mFile, aPath);
if (!dsf->IsSafePath()) {
r = new PostErrorEvent(request, POST_ERROR_EVENT_ILLEGAL_FILE_NAME, dsf);
}
else {
r = new DeviceStorageRequest(DeviceStorageRequest::DEVICE_STORAGE_REQUEST_WRITE,
win, mURI, dsf, request, aBlob);
}
NS_DispatchToMainThread(r);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::Get(const JS::Value & aPath,
JSContext* aCx,
nsIDOMDOMRequest * *_retval NS_OUTPARAM)
{
return GetInternal(aPath, aCx, _retval, false);
}
NS_IMETHODIMP
nsDOMDeviceStorage::GetEditable(const JS::Value & aPath,
JSContext* aCx,
nsIDOMDOMRequest * *_retval NS_OUTPARAM)
{
return GetInternal(aPath, aCx, _retval, true);
}
nsresult
nsDOMDeviceStorage::GetInternal(const JS::Value & aPath,
JSContext* aCx,
nsIDOMDOMRequest * *_retval NS_OUTPARAM,
bool aEditable)
{
nsCOMPtr<nsPIDOMWindow> win = do_QueryReferent(mOwner);
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)) {
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mFile);
r = new PostErrorEvent(request,
POST_ERROR_EVENT_NON_STRING_TYPE_UNSUPPORTED,
dsf);
NS_DispatchToMainThread(r);
return NS_OK;
}
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mFile, path);
dsf->SetEditable(aEditable);
if (!dsf->IsSafePath()) {
r = new PostErrorEvent(request, POST_ERROR_EVENT_ILLEGAL_FILE_NAME, dsf);
} else {
r = new DeviceStorageRequest(DeviceStorageRequest::DEVICE_STORAGE_REQUEST_READ,
win, mURI, dsf, request);
}
NS_DispatchToMainThread(r);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::Delete(const JS::Value & aPath, JSContext* aCx, nsIDOMDOMRequest * *_retval NS_OUTPARAM)
{
nsCOMPtr<nsIRunnable> r;
nsCOMPtr<nsPIDOMWindow> win = do_QueryReferent(mOwner);
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)) {
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mFile);
r = new PostErrorEvent(request, POST_ERROR_EVENT_NON_STRING_TYPE_UNSUPPORTED, dsf);
NS_DispatchToMainThread(r);
return NS_OK;
}
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(mFile, path);
if (!dsf->IsSafePath()) {
r = new PostErrorEvent(request, POST_ERROR_EVENT_ILLEGAL_FILE_NAME, dsf);
}
else {
r = new DeviceStorageRequest(DeviceStorageRequest::DEVICE_STORAGE_REQUEST_DELETE,
win, mURI, dsf, request);
}
NS_DispatchToMainThread(r);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDeviceStorage::Enumerate(const JS::Value & aName,
const JS::Value & aOptions,
JSContext* aCx,
PRUint8 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,
PRUint8 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(aCx, obj)) {
result = js_DateGetMsecSinceEpoch(aCx, obj);
}
}
}
return result;
}
nsresult
nsDOMDeviceStorage::EnumerateInternal(const JS::Value & aName,
const JS::Value & aOptions,
JSContext* aCx,
PRUint8 aArgc,
bool aEditable,
nsIDOMDeviceStorageCursor** aRetval)
{
nsCOMPtr<nsPIDOMWindow> win = do_QueryReferent(mOwner);
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(mFile, path);
dsf->SetEditable(aEditable);
nsRefPtr<nsDOMDeviceStorageCursor> cursor = new nsDOMDeviceStorageCursor(win, mURI, 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 false;
// Retain a reference so the object isn't deleted without IPDL's knowledge.
// Corresponding release occurs in DeallocPContentPermissionRequest.
r->AddRef();
nsCString type = NS_LITERAL_CSTRING("device-storage");
child->SendPContentPermissionRequestConstructor(r, type, IPC::URI(mURI));
r->Sendprompt();
return NS_OK;
}
nsCOMPtr<nsIContentPermissionPrompt> prompt = do_GetService(NS_CONTENT_PERMISSION_PROMPT_CONTRACTID);
if (prompt) {
prompt->Prompt(r);
}
return NS_OK;
}
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