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gecko-dev/dom/bluetooth2/bluez/BluetoothOppManager.cpp

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/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* 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 "BluetoothOppManager.h"
#include "BluetoothService.h"
#include "BluetoothSocket.h"
#include "BluetoothUtils.h"
#include "BluetoothUuid.h"
#include "ObexBase.h"
#include "mozilla/dom/bluetooth/BluetoothTypes.h"
#include "mozilla/dom/ipc/BlobParent.h"
#include "mozilla/dom/File.h"
#include "mozilla/RefPtr.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPtr.h"
#include "nsAutoPtr.h"
#include "nsCExternalHandlerService.h"
#include "nsIObserver.h"
#include "nsIObserverService.h"
#include "nsIFile.h"
#include "nsIInputStream.h"
#include "nsIMIMEService.h"
#include "nsIOutputStream.h"
#include "nsIVolumeService.h"
#include "nsNetUtil.h"
#include "nsServiceManagerUtils.h"
#define TARGET_SUBDIR "Download/Bluetooth/"
USING_BLUETOOTH_NAMESPACE
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::ipc;
using mozilla::TimeDuration;
using mozilla::TimeStamp;
namespace {
// Sending system message "bluetooth-opp-update-progress" every 50kb
static const uint32_t kUpdateProgressBase = 50 * 1024;
/*
* The format of the header of an PUT request is
* [opcode:1][packet length:2][headerId:1][header length:2]
*/
static const uint32_t kPutRequestHeaderSize = 6;
/*
* The format of the appended header of an PUT request is
* [headerId:1][header length:4]
* P.S. Length of name header is 4 since unicode is 2 bytes per char.
*/
static const uint32_t kPutRequestAppendHeaderSize = 5;
// The default timeout we permit to wait for SDP updating if we can't get
// service channel.
static const double kSdpUpdatingTimeoutMs = 3000.0;
StaticRefPtr<BluetoothOppManager> sBluetoothOppManager;
static bool sInShutdown = false;
}
class mozilla::dom::bluetooth::SendFileBatch {
public:
SendFileBatch(const nsAString& aDeviceAddress, nsIDOMBlob* aBlob)
: mDeviceAddress(aDeviceAddress)
{
mBlobs.AppendElement(aBlob);
}
nsString mDeviceAddress;
nsCOMArray<nsIDOMBlob> mBlobs;
};
NS_IMETHODIMP
BluetoothOppManager::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aData)
{
MOZ_ASSERT(sBluetoothOppManager);
if (!strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
HandleShutdown();
return NS_OK;
}
MOZ_ASSERT(false, "BluetoothOppManager got unexpected topic!");
return NS_ERROR_UNEXPECTED;
}
class SendSocketDataTask : public nsRunnable
{
public:
SendSocketDataTask(uint8_t* aStream, uint32_t aSize)
: mStream(aStream)
, mSize(aSize)
{
MOZ_ASSERT(!NS_IsMainThread());
}
NS_IMETHOD Run()
{
MOZ_ASSERT(NS_IsMainThread());
sBluetoothOppManager->SendPutRequest(mStream, mSize);
return NS_OK;
}
private:
nsAutoArrayPtr<uint8_t> mStream;
uint32_t mSize;
};
class ReadFileTask : public nsRunnable
{
public:
ReadFileTask(nsIInputStream* aInputStream,
uint32_t aRemoteMaxPacketSize) : mInputStream(aInputStream)
{
MOZ_ASSERT(NS_IsMainThread());
mAvailablePacketSize = aRemoteMaxPacketSize - kPutRequestHeaderSize;
}
NS_IMETHOD Run()
{
MOZ_ASSERT(!NS_IsMainThread());
uint32_t numRead;
nsAutoArrayPtr<char> buf(new char[mAvailablePacketSize]);
// function inputstream->Read() only works on non-main thread
nsresult rv = mInputStream->Read(buf, mAvailablePacketSize, &numRead);
if (NS_FAILED(rv)) {
// Needs error handling here
BT_WARNING("Failed to read from input stream");
return NS_ERROR_FAILURE;
}
if (numRead > 0) {
sBluetoothOppManager->CheckPutFinal(numRead);
nsRefPtr<SendSocketDataTask> task =
new SendSocketDataTask((uint8_t*)buf.forget(), numRead);
if (NS_FAILED(NS_DispatchToMainThread(task))) {
BT_WARNING("Failed to dispatch to main thread!");
return NS_ERROR_FAILURE;
}
}
return NS_OK;
};
private:
nsCOMPtr<nsIInputStream> mInputStream;
uint32_t mAvailablePacketSize;
};
class CloseSocketTask : public Task
{
public:
CloseSocketTask(BluetoothSocket* aSocket) : mSocket(aSocket)
{
MOZ_ASSERT(aSocket);
}
void Run() MOZ_OVERRIDE
{
MOZ_ASSERT(NS_IsMainThread());
if (mSocket->GetConnectionStatus() ==
SocketConnectionStatus::SOCKET_CONNECTED) {
mSocket->Disconnect();
}
}
private:
nsRefPtr<BluetoothSocket> mSocket;
};
BluetoothOppManager::BluetoothOppManager() : mConnected(false)
, mRemoteObexVersion(0)
, mRemoteConnectionFlags(0)
, mRemoteMaxPacketLength(0)
, mLastCommand(0)
, mPacketLength(0)
, mPutPacketReceivedLength(0)
, mBodySegmentLength(0)
, mAbortFlag(false)
, mNewFileFlag(false)
, mPutFinalFlag(false)
, mSendTransferCompleteFlag(false)
, mSuccessFlag(false)
, mIsServer(true)
, mWaitingForConfirmationFlag(false)
, mFileLength(0)
, mSentFileLength(0)
, mWaitingToSendPutFinal(false)
, mCurrentBlobIndex(-1)
{
mConnectedDeviceAddress.AssignLiteral(BLUETOOTH_ADDRESS_NONE);
}
BluetoothOppManager::~BluetoothOppManager()
{
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
NS_ENSURE_TRUE_VOID(obs);
if (NS_FAILED(obs->RemoveObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID))) {
BT_WARNING("Failed to remove shutdown observer!");
}
}
bool
BluetoothOppManager::Init()
{
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
NS_ENSURE_TRUE(obs, false);
if (NS_FAILED(obs->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false))) {
BT_WARNING("Failed to add shutdown observer!");
return false;
}
Listen();
return true;
}
//static
BluetoothOppManager*
BluetoothOppManager::Get()
{
MOZ_ASSERT(NS_IsMainThread());
// If sBluetoothOppManager already exists, exit early
if (sBluetoothOppManager) {
return sBluetoothOppManager;
}
// If we're in shutdown, don't create a new instance
NS_ENSURE_FALSE(sInShutdown, nullptr);
// Create a new instance, register, and return
BluetoothOppManager *manager = new BluetoothOppManager();
NS_ENSURE_TRUE(manager->Init(), nullptr);
sBluetoothOppManager = manager;
return sBluetoothOppManager;
}
void
BluetoothOppManager::ConnectInternal(const nsAString& aDeviceAddress)
{
MOZ_ASSERT(NS_IsMainThread());
// Stop listening because currently we only support one connection at a time.
if (mRfcommSocket) {
mRfcommSocket->Disconnect();
mRfcommSocket = nullptr;
}
if (mL2capSocket) {
mL2capSocket->Disconnect();
mL2capSocket = nullptr;
}
mIsServer = false;
BluetoothService* bs = BluetoothService::Get();
if (!bs || sInShutdown || mSocket) {
OnSocketConnectError(mSocket);
return;
}
mNeedsUpdatingSdpRecords = true;
nsString uuid;
BluetoothUuidHelper::GetString(BluetoothServiceClass::OBJECT_PUSH, uuid);
if (NS_FAILED(bs->GetServiceChannel(aDeviceAddress, uuid, this))) {
OnSocketConnectError(mSocket);
return;
}
mSocket =
new BluetoothSocket(this, BluetoothSocketType::RFCOMM, true, true);
}
void
BluetoothOppManager::HandleShutdown()
{
MOZ_ASSERT(NS_IsMainThread());
sInShutdown = true;
Disconnect(nullptr);
sBluetoothOppManager = nullptr;
}
bool
BluetoothOppManager::Listen()
{
MOZ_ASSERT(NS_IsMainThread());
if (mSocket) {
BT_WARNING("mSocket exists. Failed to listen.");
return false;
}
if (!mRfcommSocket) {
mRfcommSocket =
new BluetoothSocket(this, BluetoothSocketType::RFCOMM, true, true);
if (!mRfcommSocket->Listen(BluetoothReservedChannels::CHANNEL_OPUSH)) {
BT_WARNING("[OPP] Can't listen on RFCOMM socket!");
mRfcommSocket = nullptr;
return false;
}
}
if (!mL2capSocket) {
mL2capSocket =
new BluetoothSocket(this, BluetoothSocketType::EL2CAP, true, true);
if (!mL2capSocket->Listen(BluetoothReservedChannels::CHANNEL_OPUSH_L2CAP)) {
BT_WARNING("[OPP] Can't listen on L2CAP socket!");
mRfcommSocket->Disconnect();
mRfcommSocket = nullptr;
mL2capSocket = nullptr;
return false;
}
}
mIsServer = true;
return true;
}
void
BluetoothOppManager::StartSendingNextFile()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!IsConnected());
MOZ_ASSERT(!mBatches.IsEmpty());
MOZ_ASSERT((int)mBatches[0].mBlobs.Length() > mCurrentBlobIndex + 1);
mBlob = mBatches[0].mBlobs[++mCurrentBlobIndex];
// Before sending content, we have to send a header including
// information such as file name, file length and content type.
ExtractBlobHeaders();
StartFileTransfer();
if (mCurrentBlobIndex == 0) {
// We may have more than one file waiting for transferring, but only one
// CONNECT request would be sent. Therefore check if this is the very first
// file at the head of queue.
SendConnectRequest();
} else {
SendPutHeaderRequest(mFileName, mFileLength);
AfterFirstPut();
}
}
bool
BluetoothOppManager::SendFile(const nsAString& aDeviceAddress,
BlobParent* aActor)
{
MOZ_ASSERT(NS_IsMainThread());
nsRefPtr<FileImpl> impl = aActor->GetBlobImpl();
nsCOMPtr<nsIDOMBlob> blob = new File(nullptr, impl);
return SendFile(aDeviceAddress, blob.get());
}
bool
BluetoothOppManager::SendFile(const nsAString& aDeviceAddress,
nsIDOMBlob* aBlob)
{
MOZ_ASSERT(NS_IsMainThread());
AppendBlobToSend(aDeviceAddress, aBlob);
if (!mSocket) {
ProcessNextBatch();
}
return true;
}
void
BluetoothOppManager::AppendBlobToSend(const nsAString& aDeviceAddress,
nsIDOMBlob* aBlob)
{
MOZ_ASSERT(NS_IsMainThread());
int indexTail = mBatches.Length() - 1;
/**
* Create a new batch if
* - mBatches is empty, or
* - aDeviceAddress differs from mDeviceAddress of the last batch
*/
if (mBatches.IsEmpty() ||
aDeviceAddress != mBatches[indexTail].mDeviceAddress) {
SendFileBatch batch(aDeviceAddress, aBlob);
mBatches.AppendElement(batch);
} else {
mBatches[indexTail].mBlobs.AppendElement(aBlob);
}
}
void
BluetoothOppManager::DiscardBlobsToSend()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mBatches.IsEmpty());
MOZ_ASSERT(!mIsServer);
int length = (int) mBatches[0].mBlobs.Length();
while (length > mCurrentBlobIndex + 1) {
mBlob = mBatches[0].mBlobs[++mCurrentBlobIndex];
BT_LOGR("idx %d", mCurrentBlobIndex);
ExtractBlobHeaders();
StartFileTransfer();
FileTransferComplete();
}
}
bool
BluetoothOppManager::ProcessNextBatch()
{
MOZ_ASSERT(NS_IsMainThread());
// Remove the processed batch.
// A batch is processed if we've incremented mCurrentBlobIndex for it.
if (mCurrentBlobIndex >= 0) {
ClearQueue();
mBatches.RemoveElementAt(0);
BT_LOGR("REMOVE. %d remaining", mBatches.Length());
}
// Process the next batch
if (!mBatches.IsEmpty()) {
ConnectInternal(mBatches[0].mDeviceAddress);
return true;
}
// No more batch to process
return false;
}
void
BluetoothOppManager::ClearQueue()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mIsServer);
MOZ_ASSERT(!mBatches.IsEmpty());
MOZ_ASSERT(!mBatches[0].mBlobs.IsEmpty());
mCurrentBlobIndex = -1;
mBlob = nullptr;
mBatches[0].mBlobs.Clear();
}
bool
BluetoothOppManager::StopSendingFile()
{
MOZ_ASSERT(NS_IsMainThread());
if (mIsServer) {
mAbortFlag = true;
} else {
Disconnect(nullptr);
}
return true;
}
bool
BluetoothOppManager::ConfirmReceivingFile(bool aConfirm)
{
NS_ENSURE_TRUE(mConnected, false);
NS_ENSURE_TRUE(mWaitingForConfirmationFlag, false);
mWaitingForConfirmationFlag = false;
// For the first packet of first file
bool success = false;
if (aConfirm) {
StartFileTransfer();
if (CreateFile()) {
success = WriteToFile(mBodySegment.get(), mBodySegmentLength);
}
}
if (success && mPutFinalFlag) {
mSuccessFlag = true;
RestoreReceivedFileAndNotify();
FileTransferComplete();
}
ReplyToPut(mPutFinalFlag, success);
return true;
}
void
BluetoothOppManager::AfterFirstPut()
{
mUpdateProgressCounter = 1;
mPutFinalFlag = false;
mPutPacketReceivedLength = 0;
mSentFileLength = 0;
mWaitingToSendPutFinal = false;
mSuccessFlag = false;
mBodySegmentLength = 0;
}
void
BluetoothOppManager::AfterOppConnected()
{
MOZ_ASSERT(NS_IsMainThread());
mConnected = true;
mAbortFlag = false;
mWaitingForConfirmationFlag = true;
AfterFirstPut();
// Get a mount lock to prevent the sdcard from being shared with
// the PC while we're doing a OPP file transfer. After OPP transaction
// were done, the mount lock will be freed.
if (!AcquireSdcardMountLock()) {
// If we fail to get a mount lock, abort this transaction
// Directly sending disconnect-request is better than abort-request
BT_WARNING("BluetoothOPPManager couldn't get a mount lock!");
Disconnect(nullptr);
}
}
void
BluetoothOppManager::AfterOppDisconnected()
{
MOZ_ASSERT(NS_IsMainThread());
mConnected = false;
mLastCommand = 0;
mPutPacketReceivedLength = 0;
mDsFile = nullptr;
mDummyDsFile = nullptr;
// We can't reset mSuccessFlag here since this function may be called
// before we send system message of transfer complete
// mSuccessFlag = false;
if (mInputStream) {
mInputStream->Close();
mInputStream = nullptr;
}
if (mOutputStream) {
mOutputStream->Close();
mOutputStream = nullptr;
}
if (mReadFileThread) {
mReadFileThread->Shutdown();
mReadFileThread = nullptr;
}
// Release the mount lock if file transfer completed
if (mMountLock) {
// The mount lock will be implicitly unlocked
mMountLock = nullptr;
}
}
void
BluetoothOppManager::RestoreReceivedFileAndNotify()
{
// Remove the empty dummy file
if (mDummyDsFile && mDummyDsFile->mFile) {
mDummyDsFile->mFile->Remove(false);
mDummyDsFile = nullptr;
}
// Remove the trailing ".part" file name from mDsFile by two steps
// 1. mDsFile->SetPath() so that the notification sent to Gaia will carry
// correct information of the file.
// 2. mDsFile->mFile->RenameTo() so that the file name would actually be
// changed in file system.
if (mDsFile && mDsFile->mFile) {
nsString path;
path.AssignLiteral(TARGET_SUBDIR);
path.Append(mFileName);
mDsFile->SetPath(path);
mDsFile->mFile->RenameTo(nullptr, mFileName);
}
// Notify about change of received file
NotifyAboutFileChange();
}
void
BluetoothOppManager::DeleteReceivedFile()
{
if (mOutputStream) {
mOutputStream->Close();
mOutputStream = nullptr;
}
if (mDsFile && mDsFile->mFile) {
mDsFile->mFile->Remove(false);
mDsFile = nullptr;
}
// Remove the empty dummy file
if (mDummyDsFile && mDummyDsFile->mFile) {
mDummyDsFile->mFile->Remove(false);
mDummyDsFile = nullptr;
}
}
bool
BluetoothOppManager::CreateFile()
{
MOZ_ASSERT(mPutPacketReceivedLength == mPacketLength);
// Create one dummy file to be a placeholder for the target file name, and
// create another file with a meaningless file extension to write the received
// data. By doing this, we can prevent applications from parsing incomplete
// data in the middle of the receiving process.
nsString path;
path.AssignLiteral(TARGET_SUBDIR);
path.Append(mFileName);
// Use an empty dummy file object to occupy the file name, so that after the
// whole file has been received successfully by using mDsFile, we could just
// remove mDummyDsFile and rename mDsFile to the file name of mDummyDsFile.
mDummyDsFile =
DeviceStorageFile::CreateUnique(path, nsIFile::NORMAL_FILE_TYPE, 0644);
NS_ENSURE_TRUE(mDummyDsFile, false);
// The function CreateUnique() may create a file with a different file
// name from the original mFileName. Therefore we have to retrieve
// the file name again.
mDummyDsFile->mFile->GetLeafName(mFileName);
BT_LOGR("mFileName: %s", NS_ConvertUTF16toUTF8(mFileName).get());
// Prepare the entire file path for the .part file
path.Truncate();
path.AssignLiteral(TARGET_SUBDIR);
path.Append(mFileName);
path.AppendLiteral(".part");
mDsFile =
DeviceStorageFile::CreateUnique(path, nsIFile::NORMAL_FILE_TYPE, 0644);
NS_ENSURE_TRUE(mDsFile, false);
NS_NewLocalFileOutputStream(getter_AddRefs(mOutputStream), mDsFile->mFile);
NS_ENSURE_TRUE(mOutputStream, false);
return true;
}
bool
BluetoothOppManager::WriteToFile(const uint8_t* aData, int aDataLength)
{
NS_ENSURE_TRUE(mOutputStream, false);
uint32_t wrote = 0;
mOutputStream->Write((const char*)aData, aDataLength, &wrote);
NS_ENSURE_TRUE(aDataLength == (int) wrote, false);
return true;
}
// Virtual function of class SocketConsumer
void
BluetoothOppManager::ExtractPacketHeaders(const ObexHeaderSet& aHeader)
{
if (aHeader.Has(ObexHeaderId::Name)) {
aHeader.GetName(mFileName);
}
if (aHeader.Has(ObexHeaderId::Type)) {
aHeader.GetContentType(mContentType);
}
if (aHeader.Has(ObexHeaderId::Length)) {
aHeader.GetLength(&mFileLength);
}
if (aHeader.Has(ObexHeaderId::Body) ||
aHeader.Has(ObexHeaderId::EndOfBody)) {
uint8_t* bodyPtr;
aHeader.GetBody(&bodyPtr);
mBodySegment = bodyPtr;
aHeader.GetBodyLength(&mBodySegmentLength);
}
}
bool
BluetoothOppManager::ExtractBlobHeaders()
{
RetrieveSentFileName();
nsresult rv = mBlob->GetType(mContentType);
if (NS_FAILED(rv)) {
BT_WARNING("Can't get content type");
SendDisconnectRequest();
return false;
}
uint64_t fileLength;
rv = mBlob->GetSize(&fileLength);
if (NS_FAILED(rv)) {
BT_WARNING("Can't get file size");
SendDisconnectRequest();
return false;
}
// Currently we keep the size of files which were sent/received via
// Bluetooth not exceed UINT32_MAX because the Length header in OBEX
// is only 4-byte long. Although it is possible to transfer a file
// larger than UINT32_MAX, it needs to parse another OBEX Header
// and I would like to leave it as a feature.
if (fileLength > (uint64_t)UINT32_MAX) {
BT_WARNING("The file size is too large for now");
SendDisconnectRequest();
return false;
}
mFileLength = fileLength;
rv = NS_NewThread(getter_AddRefs(mReadFileThread));
if (NS_FAILED(rv)) {
BT_WARNING("Can't create thread");
SendDisconnectRequest();
return false;
}
return true;
}
void
BluetoothOppManager::RetrieveSentFileName()
{
mFileName.Truncate();
nsCOMPtr<nsIDOMFile> file = do_QueryInterface(mBlob);
if (file) {
file->GetName(mFileName);
}
/**
* We try our best to get the file extention to avoid interoperability issues.
* However, once we found that we are unable to get suitable extension or
* information about the content type, sending a pre-defined file name without
* extension would be fine.
*/
if (mFileName.IsEmpty()) {
mFileName.AssignLiteral("Unknown");
}
int32_t offset = mFileName.RFindChar('/');
if (offset != kNotFound) {
mFileName = Substring(mFileName, offset + 1);
}
offset = mFileName.RFindChar('.');
if (offset == kNotFound) {
nsCOMPtr<nsIMIMEService> mimeSvc = do_GetService(NS_MIMESERVICE_CONTRACTID);
if (mimeSvc) {
nsString mimeType;
mBlob->GetType(mimeType);
nsCString extension;
nsresult rv =
mimeSvc->GetPrimaryExtension(NS_LossyConvertUTF16toASCII(mimeType),
EmptyCString(),
extension);
if (NS_SUCCEEDED(rv)) {
mFileName.Append('.');
AppendUTF8toUTF16(extension, mFileName);
}
}
}
}
bool
BluetoothOppManager::IsReservedChar(char16_t c)
{
return (c < 0x0020 ||
c == char16_t('?') || c == char16_t('|') || c == char16_t('<') ||
c == char16_t('>') || c == char16_t('"') || c == char16_t(':') ||
c == char16_t('/') || c == char16_t('*') || c == char16_t('\\'));
}
void
BluetoothOppManager::ValidateFileName()
{
int length = mFileName.Length();
for (int i = 0; i < length; ++i) {
// Replace reserved char of fat file system with '_'
if (IsReservedChar(mFileName.CharAt(i))) {
mFileName.Replace(i, 1, char16_t('_'));
}
}
}
bool
BluetoothOppManager::ComposePacket(uint8_t aOpCode, UnixSocketRawData* aMessage)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aMessage);
int frameHeaderLength = 0;
const uint8_t* data = aMessage->GetData();
// See if this is the first part of each Put packet
if (mPutPacketReceivedLength == 0) {
// Section 3.3.3 "Put", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
frameHeaderLength = 3;
mPacketLength = ((static_cast<int>(data[1]) << 8) | data[2]) -
frameHeaderLength;
/**
* A PUT request from remote devices may be divided into multiple parts.
* In other words, one request may need to be received multiple times,
* so here we keep a variable mPutPacketReceivedLength to indicate if
* current PUT request is done.
*/
mReceivedDataBuffer = new uint8_t[mPacketLength];
mPutFinalFlag = (aOpCode == ObexRequestCode::PutFinal);
}
int dataLength = aMessage->GetSize() - frameHeaderLength;
// Check length before memcpy to prevent from memory pollution
if (dataLength < 0 ||
mPutPacketReceivedLength + dataLength > mPacketLength) {
BT_LOGR("Received packet size is unreasonable");
ReplyToPut(mPutFinalFlag, false);
DeleteReceivedFile();
FileTransferComplete();
return false;
}
memcpy(mReceivedDataBuffer.get() + mPutPacketReceivedLength,
&data[frameHeaderLength], dataLength);
mPutPacketReceivedLength += dataLength;
return (mPutPacketReceivedLength == mPacketLength);
}
void
BluetoothOppManager::ServerDataHandler(UnixSocketRawData* aMessage)
{
MOZ_ASSERT(NS_IsMainThread());
uint8_t opCode;
int receivedLength = aMessage->GetSize();
const uint8_t* data = aMessage->GetData();
if (mPutPacketReceivedLength > 0) {
opCode = mPutFinalFlag ? ObexRequestCode::PutFinal : ObexRequestCode::Put;
} else {
opCode = data[0];
// When there's a Put packet right after a PutFinal packet,
// which means it's the start point of a new file.
if (mPutFinalFlag &&
(opCode == ObexRequestCode::Put ||
opCode == ObexRequestCode::PutFinal)) {
mNewFileFlag = true;
AfterFirstPut();
}
}
ObexHeaderSet pktHeaders(opCode);
if (opCode == ObexRequestCode::Connect) {
// Section 3.3.1 "Connect", IrOBEX 1.2
// [opcode:1][length:2][version:1][flags:1][MaxPktSizeWeCanReceive:2]
// [Headers:var]
if (!ParseHeaders(&data[7], receivedLength - 7, &pktHeaders)) {
ReplyError(ObexResponseCode::BadRequest);
return;
}
ReplyToConnect();
AfterOppConnected();
} else if (opCode == ObexRequestCode::Abort) {
// Section 3.3.5 "Abort", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
if (!ParseHeaders(&data[3], receivedLength - 3, &pktHeaders)) {
ReplyError(ObexResponseCode::BadRequest);
return;
}
ReplyToDisconnectOrAbort();
DeleteReceivedFile();
} else if (opCode == ObexRequestCode::Disconnect) {
// Section 3.3.2 "Disconnect", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
if (!ParseHeaders(&data[3], receivedLength - 3, &pktHeaders)) {
ReplyError(ObexResponseCode::BadRequest);
return;
}
ReplyToDisconnectOrAbort();
AfterOppDisconnected();
FileTransferComplete();
} else if (opCode == ObexRequestCode::Put ||
opCode == ObexRequestCode::PutFinal) {
if (!ComposePacket(opCode, aMessage)) {
return;
}
// A Put packet is received completely
ParseHeaders(mReceivedDataBuffer.get(),
mPutPacketReceivedLength, &pktHeaders);
ExtractPacketHeaders(pktHeaders);
ValidateFileName();
// When we cancel the transfer, delete the file and notify completion
if (mAbortFlag) {
ReplyToPut(mPutFinalFlag, false);
mSentFileLength += mBodySegmentLength;
DeleteReceivedFile();
FileTransferComplete();
return;
}
// Wait until get confirmation from user, then create file and write to it
if (mWaitingForConfirmationFlag) {
ReceivingFileConfirmation();
mSentFileLength += mBodySegmentLength;
return;
}
// Already get confirmation from user, create a new file if needed and
// write to output stream
if (mNewFileFlag) {
StartFileTransfer();
if (!CreateFile()) {
ReplyToPut(mPutFinalFlag, false);
return;
}
mNewFileFlag = false;
}
if (!WriteToFile(mBodySegment.get(), mBodySegmentLength)) {
ReplyToPut(mPutFinalFlag, false);
return;
}
ReplyToPut(mPutFinalFlag, true);
// Send progress update
mSentFileLength += mBodySegmentLength;
if (mSentFileLength > kUpdateProgressBase * mUpdateProgressCounter) {
UpdateProgress();
mUpdateProgressCounter = mSentFileLength / kUpdateProgressBase + 1;
}
// Success to receive a file and notify completion
if (mPutFinalFlag) {
mSuccessFlag = true;
RestoreReceivedFileAndNotify();
FileTransferComplete();
}
} else if (opCode == ObexRequestCode::Get ||
opCode == ObexRequestCode::GetFinal ||
opCode == ObexRequestCode::SetPath) {
ReplyError(ObexResponseCode::BadRequest);
BT_WARNING("Unsupported ObexRequestCode");
} else {
ReplyError(ObexResponseCode::NotImplemented);
BT_WARNING("Unrecognized ObexRequestCode");
}
}
void
BluetoothOppManager::ClientDataHandler(UnixSocketRawData* aMessage)
{
MOZ_ASSERT(NS_IsMainThread());
const uint8_t* data = aMessage->GetData();
uint8_t opCode = data[0];
// Check response code and send out system message as finished if the response
// code is somehow incorrect.
uint8_t expectedOpCode = ObexResponseCode::Success;
if (mLastCommand == ObexRequestCode::Put) {
expectedOpCode = ObexResponseCode::Continue;
}
if (opCode != expectedOpCode) {
if (mLastCommand == ObexRequestCode::Put ||
mLastCommand == ObexRequestCode::Abort ||
mLastCommand == ObexRequestCode::PutFinal) {
SendDisconnectRequest();
}
nsAutoCString str;
str += "[OPP] 0x";
str.AppendInt(mLastCommand, 16);
str += " failed";
BT_WARNING(str.get());
FileTransferComplete();
return;
}
if (mLastCommand == ObexRequestCode::PutFinal) {
mSuccessFlag = true;
FileTransferComplete();
if (mInputStream) {
mInputStream->Close();
mInputStream = nullptr;
}
if (mCurrentBlobIndex + 1 == (int) mBatches[0].mBlobs.Length()) {
SendDisconnectRequest();
} else {
StartSendingNextFile();
}
} else if (mLastCommand == ObexRequestCode::Abort) {
SendDisconnectRequest();
FileTransferComplete();
} else if (mLastCommand == ObexRequestCode::Disconnect) {
AfterOppDisconnected();
// Most devices will directly terminate connection after receiving
// Disconnect request, so we make a delay here. If the socket hasn't been
// disconnected, we will close it.
if (mSocket) {
MessageLoop::current()->
PostDelayedTask(FROM_HERE, new CloseSocketTask(mSocket), 1000);
}
} else if (mLastCommand == ObexRequestCode::Connect) {
MOZ_ASSERT(!mFileName.IsEmpty());
MOZ_ASSERT(mBlob);
AfterOppConnected();
// Keep remote information
mRemoteObexVersion = data[3];
mRemoteConnectionFlags = data[4];
mRemoteMaxPacketLength = (static_cast<int>(data[5]) << 8) | data[6];
// The length of file name exceeds maximum length.
int fileNameByteLen = (mFileName.Length() + 1) * 2;
int headerLen = kPutRequestHeaderSize + kPutRequestAppendHeaderSize;
if (fileNameByteLen > mRemoteMaxPacketLength - headerLen) {
BT_WARNING("The length of file name is aberrant.");
SendDisconnectRequest();
return;
}
SendPutHeaderRequest(mFileName, mFileLength);
} else if (mLastCommand == ObexRequestCode::Put) {
if (mWaitingToSendPutFinal) {
SendPutFinalRequest();
return;
}
if (kUpdateProgressBase * mUpdateProgressCounter < mSentFileLength) {
UpdateProgress();
mUpdateProgressCounter = mSentFileLength / kUpdateProgressBase + 1;
}
nsresult rv;
if (!mInputStream) {
rv = mBlob->GetInternalStream(getter_AddRefs(mInputStream));
if (NS_FAILED(rv)) {
BT_WARNING("Can't get internal stream of blob");
SendDisconnectRequest();
return;
}
}
nsRefPtr<ReadFileTask> task = new ReadFileTask(mInputStream,
mRemoteMaxPacketLength);
rv = mReadFileThread->Dispatch(task, NS_DISPATCH_NORMAL);
if (NS_FAILED(rv)) {
BT_WARNING("Cannot dispatch read file task!");
SendDisconnectRequest();
}
} else {
BT_WARNING("Unhandled ObexRequestCode");
}
}
// Virtual function of class SocketConsumer
void
BluetoothOppManager::ReceiveSocketData(BluetoothSocket* aSocket,
nsAutoPtr<UnixSocketRawData>& aMessage)
{
if (mIsServer) {
ServerDataHandler(aMessage);
} else {
ClientDataHandler(aMessage);
}
}
void
BluetoothOppManager::SendConnectRequest()
{
if (mConnected) return;
// Section 3.3.1 "Connect", IrOBEX 1.2
// [opcode:1][length:2][version:1][flags:1][MaxPktSizeWeCanReceive:2]
// [Headers:var]
uint8_t req[255];
int index = 7;
req[3] = 0x10; // version=1.0
req[4] = 0x00; // flag=0x00
req[5] = BluetoothOppManager::MAX_PACKET_LENGTH >> 8;
req[6] = (uint8_t)BluetoothOppManager::MAX_PACKET_LENGTH;
SendObexData(req, ObexRequestCode::Connect, index);
}
void
BluetoothOppManager::SendPutHeaderRequest(const nsAString& aFileName,
int aFileSize)
{
if (!mConnected) return;
uint8_t* req = new uint8_t[mRemoteMaxPacketLength];
int len = aFileName.Length();
uint8_t* fileName = new uint8_t[(len + 1) * 2];
const char16_t* fileNamePtr = aFileName.BeginReading();
for (int i = 0; i < len; i++) {
fileName[i * 2] = (uint8_t)(fileNamePtr[i] >> 8);
fileName[i * 2 + 1] = (uint8_t)fileNamePtr[i];
}
fileName[len * 2] = 0x00;
fileName[len * 2 + 1] = 0x00;
int index = 3;
index += AppendHeaderName(&req[index], mRemoteMaxPacketLength - index,
(char*)fileName, (len + 1) * 2);
index += AppendHeaderLength(&req[index], aFileSize);
// This is final put packet if file size equals to 0
uint8_t opcode = (aFileSize > 0) ? ObexRequestCode::Put
: ObexRequestCode::PutFinal;
SendObexData(req, opcode, index);
delete [] fileName;
delete [] req;
}
void
BluetoothOppManager::SendPutRequest(uint8_t* aFileBody,
int aFileBodyLength)
{
if (!mConnected) return;
int packetLeftSpace = mRemoteMaxPacketLength - kPutRequestHeaderSize;
if (aFileBodyLength > packetLeftSpace) {
BT_WARNING("Not allowed such a small MaxPacketLength value");
return;
}
// Section 3.3.3 "Put", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
uint8_t* req = new uint8_t[mRemoteMaxPacketLength];
int index = 3;
index += AppendHeaderBody(&req[index], mRemoteMaxPacketLength - index,
aFileBody, aFileBodyLength);
SendObexData(req, ObexRequestCode::Put, index);
delete [] req;
mSentFileLength += aFileBodyLength;
}
void
BluetoothOppManager::SendPutFinalRequest()
{
if (!mConnected) return;
/**
* Section 2.2.9, "End-of-Body", IrObex 1.2
* End-of-Body is used to identify the last chunk of the object body.
* For most platforms, a PutFinal packet is sent with an zero length
* End-of-Body header.
*/
// [opcode:1][length:2]
int index = 3;
uint8_t* req = new uint8_t[mRemoteMaxPacketLength];
index += AppendHeaderEndOfBody(&req[index]);
SendObexData(req, ObexRequestCode::PutFinal, index);
delete [] req;
mWaitingToSendPutFinal = false;
}
void
BluetoothOppManager::SendDisconnectRequest()
{
if (!mConnected) return;
// Section 3.3.2 "Disconnect", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
uint8_t req[255];
int index = 3;
SendObexData(req, ObexRequestCode::Disconnect, index);
}
void
BluetoothOppManager::CheckPutFinal(uint32_t aNumRead)
{
if (mSentFileLength + aNumRead >= mFileLength) {
mWaitingToSendPutFinal = true;
}
}
bool
BluetoothOppManager::IsConnected()
{
return mConnected;
}
void
BluetoothOppManager::GetAddress(nsAString& aDeviceAddress)
{
return mSocket->GetAddress(aDeviceAddress);
}
void
BluetoothOppManager::ReplyToConnect()
{
if (mConnected) return;
// Section 3.3.1 "Connect", IrOBEX 1.2
// [opcode:1][length:2][version:1][flags:1][MaxPktSizeWeCanReceive:2]
// [Headers:var]
uint8_t req[255];
int index = 7;
req[3] = 0x10; // version=1.0
req[4] = 0x00; // flag=0x00
req[5] = BluetoothOppManager::MAX_PACKET_LENGTH >> 8;
req[6] = (uint8_t)BluetoothOppManager::MAX_PACKET_LENGTH;
SendObexData(req, ObexResponseCode::Success, index);
}
void
BluetoothOppManager::ReplyToDisconnectOrAbort()
{
if (!mConnected) return;
// Section 3.3.2 "Disconnect" and Section 3.3.5 "Abort", IrOBEX 1.2
// The format of response packet of "Disconnect" and "Abort" are the same
// [opcode:1][length:2][Headers:var]
uint8_t req[255];
int index = 3;
SendObexData(req, ObexResponseCode::Success, index);
}
void
BluetoothOppManager::ReplyToPut(bool aFinal, bool aContinue)
{
if (!mConnected) return;
// The received length can be reset here because this is where we reply to a
// complete put packet.
mPutPacketReceivedLength = 0;
// Section 3.3.2 "Disconnect", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
uint8_t req[255];
int index = 3;
uint8_t opcode;
if (aContinue) {
opcode = (aFinal)? ObexResponseCode::Success :
ObexResponseCode::Continue;
} else {
opcode = (aFinal)? ObexResponseCode::Unauthorized :
ObexResponseCode::Unauthorized & (~FINAL_BIT);
}
SendObexData(req, opcode, index);
}
void
BluetoothOppManager::ReplyError(uint8_t aError)
{
BT_LOGR("error: %d", aError);
// Section 3.2 "Response Format", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
uint8_t req[255];
int index = 3;
SendObexData(req, aError, index);
}
void
BluetoothOppManager::SendObexData(uint8_t* aData, uint8_t aOpcode, int aSize)
{
SetObexPacketInfo(aData, aOpcode, aSize);
if (!mIsServer) {
mLastCommand = aOpcode;
}
UnixSocketRawData* s = new UnixSocketRawData(aData, aSize);
mSocket->SendSocketData(s);
}
void
BluetoothOppManager::FileTransferComplete()
{
if (mSendTransferCompleteFlag) {
return;
}
nsString type, name;
BluetoothValue v;
InfallibleTArray<BluetoothNamedValue> parameters;
type.AssignLiteral("bluetooth-opp-transfer-complete");
name.AssignLiteral("address");
v = mConnectedDeviceAddress;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("success");
v = mSuccessFlag;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("received");
v = mIsServer;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("fileName");
v = mFileName;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("fileLength");
v = mSentFileLength;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("contentType");
v = mContentType;
parameters.AppendElement(BluetoothNamedValue(name, v));
if (!BroadcastSystemMessage(type, parameters)) {
BT_WARNING("Failed to broadcast [bluetooth-opp-transfer-complete]");
return;
}
mSendTransferCompleteFlag = true;
}
void
BluetoothOppManager::StartFileTransfer()
{
nsString type, name;
BluetoothValue v;
InfallibleTArray<BluetoothNamedValue> parameters;
type.AssignLiteral("bluetooth-opp-transfer-start");
name.AssignLiteral("address");
v = mConnectedDeviceAddress;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("received");
v = mIsServer;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("fileName");
v = mFileName;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("fileLength");
v = mFileLength;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("contentType");
v = mContentType;
parameters.AppendElement(BluetoothNamedValue(name, v));
if (!BroadcastSystemMessage(type, parameters)) {
BT_WARNING("Failed to broadcast [bluetooth-opp-transfer-start]");
return;
}
mSendTransferCompleteFlag = false;
}
void
BluetoothOppManager::UpdateProgress()
{
nsString type, name;
BluetoothValue v;
InfallibleTArray<BluetoothNamedValue> parameters;
type.AssignLiteral("bluetooth-opp-update-progress");
name.AssignLiteral("address");
v = mConnectedDeviceAddress;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("received");
v = mIsServer;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("processedLength");
v = mSentFileLength;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("fileLength");
v = mFileLength;
parameters.AppendElement(BluetoothNamedValue(name, v));
if (!BroadcastSystemMessage(type, parameters)) {
BT_WARNING("Failed to broadcast [bluetooth-opp-update-progress]");
return;
}
}
void
BluetoothOppManager::ReceivingFileConfirmation()
{
nsString type, name;
BluetoothValue v;
InfallibleTArray<BluetoothNamedValue> parameters;
type.AssignLiteral("bluetooth-opp-receiving-file-confirmation");
name.AssignLiteral("address");
v = mConnectedDeviceAddress;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("fileName");
v = mFileName;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("fileLength");
v = mFileLength;
parameters.AppendElement(BluetoothNamedValue(name, v));
name.AssignLiteral("contentType");
v = mContentType;
parameters.AppendElement(BluetoothNamedValue(name, v));
if (!BroadcastSystemMessage(type, parameters)) {
BT_WARNING("Failed to send [bluetooth-opp-receiving-file-confirmation]");
return;
}
}
void
BluetoothOppManager::NotifyAboutFileChange()
{
NS_NAMED_LITERAL_STRING(data, "modified");
nsCOMPtr<nsIObserverService> obs =
mozilla::services::GetObserverService();
NS_ENSURE_TRUE_VOID(obs);
obs->NotifyObservers(mDsFile, "file-watcher-notify", data.get());
}
void
BluetoothOppManager::OnSocketConnectSuccess(BluetoothSocket* aSocket)
{
BT_LOGR("[%s]", (mIsServer)? "server" : "client");
MOZ_ASSERT(aSocket);
/**
* If the created connection is an inbound connection, close another server
* socket because currently only one file-transfer session is allowed. After
* that, we need to make sure that both server socket would be nulled out.
* As for outbound connections, we just notify the controller that it's done.
*/
if (aSocket == mRfcommSocket) {
MOZ_ASSERT(!mSocket);
mRfcommSocket.swap(mSocket);
mL2capSocket->Disconnect();
mL2capSocket = nullptr;
} else if (aSocket == mL2capSocket) {
MOZ_ASSERT(!mSocket);
mL2capSocket.swap(mSocket);
mRfcommSocket->Disconnect();
mRfcommSocket = nullptr;
}
// Cache device address since we can't get socket address when a remote
// device disconnect with us.
mSocket->GetAddress(mConnectedDeviceAddress);
// Start sending file if we connect as a client
if (!mIsServer) {
StartSendingNextFile();
}
}
void
BluetoothOppManager::OnSocketConnectError(BluetoothSocket* aSocket)
{
BT_LOGR("[%s]", (mIsServer)? "server" : "client");
mRfcommSocket = nullptr;
mL2capSocket = nullptr;
mSocket = nullptr;
if (!mIsServer) {
// Inform gaia of remaining blobs' sending failure
DiscardBlobsToSend();
}
// Listen as a server if there's no more batch to process
if (!ProcessNextBatch() && !mIsServer) {
Listen();
}
}
void
BluetoothOppManager::OnSocketDisconnect(BluetoothSocket* aSocket)
{
BT_LOGR("[%s]", (mIsServer)? "server" : "client");
MOZ_ASSERT(aSocket);
if (aSocket != mSocket) {
// Do nothing when a listening server socket is closed.
return;
}
/**
* It is valid for a bluetooth device which is transfering file via OPP
* closing socket without sending OBEX disconnect request first. So we
* delete the broken file when we failed to receive a file from the remote,
* and notify the transfer has been completed (but failed). We also call
* AfterOppDisconnected here to ensure all variables will be cleaned.
*/
if (!mSuccessFlag) {
if (mIsServer) {
DeleteReceivedFile();
}
FileTransferComplete();
if (!mIsServer) {
// Inform gaia of remaining blobs' sending failure
DiscardBlobsToSend();
}
}
AfterOppDisconnected();
mConnectedDeviceAddress.AssignLiteral(BLUETOOTH_ADDRESS_NONE);
mSuccessFlag = false;
mSocket = nullptr;
// Listen as a server if there's no more batch to process
if (!ProcessNextBatch()) {
Listen();
}
}
void
BluetoothOppManager::Disconnect(BluetoothProfileController* aController)
{
if (mSocket) {
mSocket->Disconnect();
} else {
BT_WARNING("%s: No ongoing file transfer to stop", __FUNCTION__);
}
}
void
BluetoothOppManager::OnGetServiceChannel(const nsAString& aDeviceAddress,
const nsAString& aServiceUuid,
int aChannel)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aDeviceAddress.IsEmpty());
BluetoothService* bs = BluetoothService::Get();
NS_ENSURE_TRUE_VOID(bs);
if (aChannel < 0) {
if (mNeedsUpdatingSdpRecords) {
mNeedsUpdatingSdpRecords = false;
mLastServiceChannelCheck = TimeStamp::Now();
bs->UpdateSdpRecords(aDeviceAddress, this);
} else {
TimeDuration duration = TimeStamp::Now() - mLastServiceChannelCheck;
// Refresh SDP records until it gets valid service channel
// unless timeout is hit.
if (duration.ToMilliseconds() < kSdpUpdatingTimeoutMs) {
bs->UpdateSdpRecords(aDeviceAddress, this);
} else {
OnSocketConnectError(mSocket);
}
}
return;
}
if (!mSocket->Connect(NS_ConvertUTF16toUTF8(aDeviceAddress), aChannel)) {
OnSocketConnectError(mSocket);
}
}
void
BluetoothOppManager::OnUpdateSdpRecords(const nsAString& aDeviceAddress)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aDeviceAddress.IsEmpty());
BluetoothService* bs = BluetoothService::Get();
NS_ENSURE_TRUE_VOID(bs);
nsString uuid;
BluetoothUuidHelper::GetString(BluetoothServiceClass::OBJECT_PUSH, uuid);
if (NS_FAILED(bs->GetServiceChannel(aDeviceAddress, uuid, this))) {
OnSocketConnectError(mSocket);
}
}
NS_IMPL_ISUPPORTS(BluetoothOppManager, nsIObserver)
bool
BluetoothOppManager::AcquireSdcardMountLock()
{
nsCOMPtr<nsIVolumeService> volumeSrv =
do_GetService(NS_VOLUMESERVICE_CONTRACTID);
NS_ENSURE_TRUE(volumeSrv, false);
nsresult rv;
rv = volumeSrv->CreateMountLock(NS_LITERAL_STRING("sdcard"),
getter_AddRefs(mMountLock));
NS_ENSURE_SUCCESS(rv, false);
return true;
}
void
BluetoothOppManager::Connect(const nsAString& aDeviceAddress,
BluetoothProfileController* aController)
{
MOZ_ASSERT(false);
}
void
BluetoothOppManager::OnConnect(const nsAString& aErrorStr)
{
MOZ_ASSERT(false);
}
void
BluetoothOppManager::OnDisconnect(const nsAString& aErrorStr)
{
MOZ_ASSERT(false);
}
void
BluetoothOppManager::Reset()
{
MOZ_ASSERT(false);
}
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