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gecko-dev/dom/bluetooth/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 "BluetoothProfileController.h"
#include "BluetoothReplyRunnable.h"
#include "BluetoothService.h"
#include "BluetoothSocket.h"
#include "BluetoothUtils.h"
#include "BluetoothUuid.h"
#include "ObexBase.h"
#include "mozilla/dom/bluetooth/BluetoothTypes.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 "nsIDOMFile.h"
#include "nsIFile.h"
#include "nsIInputStream.h"
#include "nsIMIMEService.h"
#include "nsIOutputStream.h"
#include "nsIVolumeService.h"
#include "nsNetUtil.h"
#define TARGET_SUBDIR "Download/Bluetooth/"
USING_BLUETOOTH_NAMESPACE
using namespace mozilla;
using namespace mozilla::ipc;
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;
StaticRefPtr<BluetoothOppManager> sBluetoothOppManager;
static bool sInShutdown = false;
}
NS_IMETHODIMP
BluetoothOppManager::Observe(nsISupports* aSubject,
const char* aTopic,
const PRUnichar* 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
NS_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))) {
NS_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)
, mPacketLeftLength(0)
, mBodySegmentLength(0)
, mReceivedDataBufferOffset(0)
, mAbortFlag(false)
, mNewFileFlag(false)
, mPutFinalFlag(false)
, mSendTransferCompleteFlag(false)
, mSuccessFlag(false)
, mIsServer(true)
, mWaitingForConfirmationFlag(false)
, mFileLength(0)
, mSentFileLength(0)
, mWaitingToSendPutFinal(false)
, mCurrentBlobIndex(-1)
, mController(nullptr)
{
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::Connect(const nsAString& aDeviceAddress,
BluetoothProfileController* aController)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aController && !mController);
BluetoothService* bs = BluetoothService::Get();
if (!bs || sInShutdown) {
aController->OnConnect(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
return;
}
if (mSocket) {
if (mConnectedDeviceAddress == aDeviceAddress) {
aController->OnConnect(NS_LITERAL_STRING(ERR_ALREADY_CONNECTED));
} else {
aController->OnConnect(NS_LITERAL_STRING(ERR_REACHED_CONNECTION_LIMIT));
}
return;
}
mNeedsUpdatingSdpRecords = true;
nsString uuid;
BluetoothUuidHelper::GetString(BluetoothServiceClass::OBJECT_PUSH, uuid);
if (NS_FAILED(bs->GetServiceChannel(aDeviceAddress, uuid, this))) {
aController->OnConnect(NS_LITERAL_STRING(ERR_SERVICE_CHANNEL_NOT_FOUND));
return;
}
// Stop listening because currently we only support one connection at a time.
if (mRfcommSocket) {
mRfcommSocket->Disconnect();
mRfcommSocket = nullptr;
}
if (mL2capSocket) {
mL2capSocket->Disconnect();
mL2capSocket = nullptr;
}
mController = aController;
mSocket =
new BluetoothSocket(this, BluetoothSocketType::RFCOMM, true, true);
}
void
BluetoothOppManager::Disconnect(BluetoothProfileController* aController)
{
if (!mSocket) {
if (aController) {
aController->OnDisconnect(NS_LITERAL_STRING(ERR_ALREADY_DISCONNECTED));
}
return;
}
MOZ_ASSERT(!mController);
mController = aController;
mSocket->Disconnect();
mSocket = nullptr;
}
void
BluetoothOppManager::HandleShutdown()
{
MOZ_ASSERT(NS_IsMainThread());
sInShutdown = true;
Disconnect(nullptr);
sBluetoothOppManager = nullptr;
}
bool
BluetoothOppManager::Listen()
{
MOZ_ASSERT(NS_IsMainThread());
if (mSocket) {
NS_WARNING("mSocket exists. Failed to listen.");
return false;
}
if (!mRfcommSocket) {
mRfcommSocket =
new BluetoothSocket(this, BluetoothSocketType::RFCOMM, true, true);
if (!mRfcommSocket->Listen(BluetoothReservedChannels::CHANNEL_OPUSH)) {
NS_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)) {
NS_WARNING("[OPP] Can't listen on L2CAP socket!");
mRfcommSocket->Disconnect();
mRfcommSocket = nullptr;
mL2capSocket = nullptr;
return false;
}
}
return true;
}
void
BluetoothOppManager::StartSendingNextFile()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!IsConnected());
MOZ_ASSERT(mBlobs.Length() > mCurrentBlobIndex + 1);
mIsServer = false;
mBlob = 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());
if (mCurrentBlobIndex >= 0) {
if (mConnectedDeviceAddress != aDeviceAddress) {
return false;
}
mBlobs.AppendElement(aActor->GetBlob().get());
return true;
}
mBlobs.AppendElement(aActor->GetBlob().get());
StartSendingNextFile();
return true;
}
bool
BluetoothOppManager::StopSendingFile()
{
mAbortFlag = true;
return true;
}
bool
BluetoothOppManager::ConfirmReceivingFile(bool aConfirm)
{
NS_ENSURE_TRUE(mConnected, false);
NS_ENSURE_TRUE(mWaitingForConfirmationFlag, false);
MOZ_ASSERT(mPacketLeftLength == 0);
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;
FileTransferComplete();
NotifyAboutFileChange();
}
ReplyToPut(mPutFinalFlag, success);
return true;
}
void
BluetoothOppManager::AfterFirstPut()
{
mUpdateProgressCounter = 1;
mPutFinalFlag = false;
mReceivedDataBufferOffset = 0;
mSendTransferCompleteFlag = false;
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
NS_WARNING("BluetoothOPPManager couldn't get a mount lock!");
Disconnect(nullptr);
}
}
void
BluetoothOppManager::AfterOppDisconnected()
{
MOZ_ASSERT(NS_IsMainThread());
mConnected = false;
mIsServer = true;
mLastCommand = 0;
mPacketLeftLength = 0;
mDsFile = nullptr;
ClearQueue();
// 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::DeleteReceivedFile()
{
if (mOutputStream) {
mOutputStream->Close();
mOutputStream = nullptr;
}
if (mDsFile && mDsFile->mFile) {
mDsFile->mFile->Remove(false);
mDsFile = nullptr;
}
}
bool
BluetoothOppManager::CreateFile()
{
MOZ_ASSERT(mPacketLeftLength == 0);
nsString path;
path.AssignLiteral(TARGET_SUBDIR);
path.Append(mFileName);
mDsFile = DeviceStorageFile::CreateUnique(path, nsIFile::NORMAL_FILE_TYPE, 0644);
NS_ENSURE_TRUE(mDsFile, false);
nsCOMPtr<nsIFile> f;
mDsFile->mFile->Clone(getter_AddRefs(f));
/*
* 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.
*/
f->GetLeafName(mFileName);
NS_NewLocalFileOutputStream(getter_AddRefs(mOutputStream), f);
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 == 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)) {
NS_WARNING("Can't get content type");
SendDisconnectRequest();
return false;
}
uint64_t fileLength;
rv = mBlob->GetSize(&fileLength);
if (NS_FAILED(rv)) {
NS_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) {
NS_WARNING("The file size is too large for now");
SendDisconnectRequest();
return false;
}
mFileLength = fileLength;
rv = NS_NewThread(getter_AddRefs(mReadFileThread));
if (NS_FAILED(rv)) {
NS_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.AppendLiteral(".");
AppendUTF8toUTF16(extension, mFileName);
}
}
}
}
bool
BluetoothOppManager::IsReservedChar(PRUnichar c)
{
return (c < 0x0020 ||
c == PRUnichar('?') || c == PRUnichar('|') || c == PRUnichar('<') ||
c == PRUnichar('>') || c == PRUnichar('"') || c == PRUnichar(':') ||
c == PRUnichar('/') || c == PRUnichar('*') || c == PRUnichar('\\'));
}
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, PRUnichar('_'));
}
}
}
void
BluetoothOppManager::ServerDataHandler(UnixSocketRawData* aMessage)
{
uint8_t opCode;
int packetLength;
int receivedLength = aMessage->mSize;
if (mPacketLeftLength > 0) {
opCode = mPutFinalFlag ? ObexRequestCode::PutFinal : ObexRequestCode::Put;
packetLength = mPacketLeftLength;
} else {
opCode = aMessage->mData[0];
packetLength = (((int)aMessage->mData[1]) << 8) | aMessage->mData[2];
// 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) {
mIsServer = true;
// Section 3.3.1 "Connect", IrOBEX 1.2
// [opcode:1][length:2][version:1][flags:1][MaxPktSizeWeCanReceive:2]
// [Headers:var]
ParseHeaders(&aMessage->mData[7],
receivedLength - 7,
&pktHeaders);
ReplyToConnect();
AfterOppConnected();
} else if (opCode == ObexRequestCode::Abort) {
// Section 3.3.5 "Abort", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
ParseHeaders(&aMessage->mData[3],
receivedLength - 3,
&pktHeaders);
ReplyToDisconnectOrAbort();
DeleteReceivedFile();
} else if (opCode == ObexRequestCode::Disconnect) {
// Section 3.3.2 "Disconnect", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
ParseHeaders(&aMessage->mData[3],
receivedLength - 3,
&pktHeaders);
ReplyToDisconnectOrAbort();
AfterOppDisconnected();
FileTransferComplete();
} else if (opCode == ObexRequestCode::Put ||
opCode == ObexRequestCode::PutFinal) {
int headerStartIndex = 0;
// The first part of each Put packet
if (mReceivedDataBufferOffset == 0) {
// Section 3.3.3 "Put", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
headerStartIndex = 3;
// The largest buffer size is 65535 because packetLength is a
// 2-byte value (0 ~ 0xFFFF).
mReceivedDataBuffer = new uint8_t[packetLength];
mPacketLeftLength = packetLength;
/*
* 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 mPacketLeftLength to indicate if current
* PUT request is done.
*/
mPutFinalFlag = (opCode == ObexRequestCode::PutFinal);
}
memcpy(mReceivedDataBuffer.get() + mReceivedDataBufferOffset,
&aMessage->mData[headerStartIndex],
receivedLength - headerStartIndex);
mPacketLeftLength -= receivedLength;
mReceivedDataBufferOffset += receivedLength - headerStartIndex;
if (mPacketLeftLength) {
return;
}
// A Put packet is received completely
ParseHeaders(mReceivedDataBuffer.get(),
mReceivedDataBufferOffset,
&pktHeaders);
ExtractPacketHeaders(pktHeaders);
ValidateFileName();
mReceivedDataBufferOffset = 0;
// 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;
FileTransferComplete();
NotifyAboutFileChange();
}
} else if (opCode == ObexRequestCode::Get ||
opCode == ObexRequestCode::GetFinal ||
opCode == ObexRequestCode::SetPath) {
ReplyError(ObexResponseCode::BadRequest);
NS_WARNING("Unsupported ObexRequestCode");
} else {
ReplyError(ObexResponseCode::NotImplemented);
NS_WARNING("Unrecognized ObexRequestCode");
}
}
void
BluetoothOppManager::ClearQueue()
{
mCurrentBlobIndex = -1;
mBlob = nullptr;
while (!mBlobs.IsEmpty()) {
mBlobs.RemoveElement(mBlobs[0]);
}
}
void
BluetoothOppManager::ClientDataHandler(UnixSocketRawData* aMessage)
{
uint8_t opCode;
int packetLength;
if (mPacketLeftLength > 0) {
opCode = mPutFinalFlag ? ObexRequestCode::PutFinal : ObexRequestCode::Put;
packetLength = mPacketLeftLength;
} else {
opCode = aMessage->mData[0];
packetLength = (((int)aMessage->mData[1]) << 8) | aMessage->mData[2];
}
// 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";
NS_WARNING(str.get());
FileTransferComplete();
return;
}
if (mLastCommand == ObexRequestCode::PutFinal) {
mSuccessFlag = true;
FileTransferComplete();
if (mInputStream) {
mInputStream->Close();
mInputStream = nullptr;
}
if (mCurrentBlobIndex + 1 == 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 = aMessage->mData[3];
mRemoteConnectionFlags = aMessage->mData[4];
mRemoteMaxPacketLength =
(((int)(aMessage->mData[5]) << 8) | aMessage->mData[6]);
sBluetoothOppManager->SendPutHeaderRequest(mFileName, mFileLength);
} else if (mLastCommand == ObexRequestCode::Put) {
if (mWaitingToSendPutFinal) {
SendPutFinalRequest();
return;
}
if (mAbortFlag) {
SendAbortRequest();
return;
}
if (kUpdateProgressBase * mUpdateProgressCounter < mSentFileLength) {
UpdateProgress();
mUpdateProgressCounter = mSentFileLength / kUpdateProgressBase + 1;
}
nsresult rv;
if (!mInputStream) {
rv = mBlob->GetInternalStream(getter_AddRefs(mInputStream));
if (NS_FAILED(rv)) {
NS_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)) {
NS_WARNING("Cannot dispatch read file task!");
SendDisconnectRequest();
}
} else {
NS_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 PRUnichar* 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], (char*)fileName, (len + 1) * 2);
index += AppendHeaderLength(&req[index], aFileSize);
SendObexData(req, ObexRequestCode::Put, index);
delete [] fileName;
delete [] req;
}
void
BluetoothOppManager::SendPutRequest(uint8_t* aFileBody,
int aFileBodyLength)
{
int packetLeftSpace = mRemoteMaxPacketLength - kPutRequestHeaderSize;
if (!mConnected) return;
if (aFileBodyLength > packetLeftSpace) {
NS_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], 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::SendAbortRequest()
{
if (!mConnected) return;
// Section 3.3.5 "Abort", IrOBEX 1.2
// [opcode:1][length:2][Headers:var]
uint8_t req[255];
int index = 3;
SendObexData(req, ObexRequestCode::Abort, index);
}
void
BluetoothOppManager::CheckPutFinal(uint32_t aNumRead)
{
if (mSentFileLength + aNumRead >= mFileLength) {
mWaitingToSendPutFinal = true;
}
}
bool
BluetoothOppManager::IsConnected()
{
return (mConnected && !mSendTransferCompleteFlag);
}
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;
// 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)
{
if (!mConnected) return;
// 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(aSize);
memcpy(s->mData, aData, s->mSize);
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)) {
NS_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)) {
NS_WARNING("Failed to broadcast [bluetooth-opp-transfer-start]");
return;
}
}
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)) {
NS_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)) {
NS_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)
{
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);
OnConnect(EmptyString());
}
void
BluetoothOppManager::OnSocketConnectError(BluetoothSocket* aSocket)
{
mRfcommSocket = nullptr;
mL2capSocket = nullptr;
OnConnect(NS_LITERAL_STRING("SocketConnectionError"));
}
void
BluetoothOppManager::OnSocketDisconnect(BluetoothSocket* aSocket)
{
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();
}
AfterOppDisconnected();
mConnectedDeviceAddress.AssignLiteral(BLUETOOTH_ADDRESS_NONE);
mSuccessFlag = false;
OnDisconnect(EmptyString());
}
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;
bs->UpdateSdpRecords(aDeviceAddress, this);
} else {
OnConnect(NS_LITERAL_STRING(ERR_SERVICE_CHANNEL_NOT_FOUND));
}
return;
}
if (!mSocket->Connect(NS_ConvertUTF16toUTF8(aDeviceAddress), aChannel)) {
OnConnect(NS_LITERAL_STRING("SocketConnectionError"));
}
}
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))) {
OnConnect(NS_LITERAL_STRING(ERR_SERVICE_CHANNEL_NOT_FOUND));
}
}
NS_IMPL_ISUPPORTS1(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::OnConnect(const nsAString& aErrorStr)
{
MOZ_ASSERT(NS_IsMainThread());
if (!aErrorStr.IsEmpty()) {
mSocket = nullptr;
Listen();
}
/**
* On the one hand, notify the controller that we've done for outbound
* connections. On the other hand, we do nothing for inbound connections.
*/
NS_ENSURE_TRUE_VOID(mController);
mController->OnConnect(aErrorStr);
mController = nullptr;
}
void
BluetoothOppManager::OnDisconnect(const nsAString& aErrorStr)
{
MOZ_ASSERT(NS_IsMainThread());
mSocket = nullptr;
Listen();
/**
* On the one hand, notify the controller that we've done for outbound
* connections. On the other hand, we do nothing for inbound connections.
*/
NS_ENSURE_TRUE_VOID(mController);
mController->OnDisconnect(aErrorStr);
mController = nullptr;
}
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