You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
408 lines
12 KiB
408 lines
12 KiB
/***************************************************************************
|
|
* Copyright (C) 2008 by Oliver Groß *
|
|
* z.o.gross@gmx.de *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or modify *
|
|
* it under the terms of the GNU General Public License as published by *
|
|
* the Free Software Foundation; either version 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
* This program is distributed in the hope that it will be useful, *
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
* GNU General Public License for more details. *
|
|
* *
|
|
* You should have received a copy of the GNU General Public License *
|
|
* along with this program; if not, write to the *
|
|
* Free Software Foundation, Inc., *
|
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
|
|
***************************************************************************/
|
|
#include "cworker.h"
|
|
#include <QTcpSocket>
|
|
#include <QByteArray>
|
|
#include <QFile>
|
|
#include <QDir>
|
|
#include <QThread>
|
|
|
|
namespace qftrans {
|
|
CWorker::CWorker(QTcpSocket * socket, QObject * parent) : QObject(parent), m_Socket(socket), m_IdCounter(0) {
|
|
connect(m_Socket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(error(QAbstractSocket::SocketError)));
|
|
connect(m_Socket, SIGNAL(bytesWritten(qint64)), this, SLOT(writeData()), Qt::QueuedConnection);
|
|
connect(m_Socket, SIGNAL(readyRead()), this, SLOT(readData()), Qt::QueuedConnection);
|
|
qDebug() << "worker created";
|
|
}
|
|
|
|
CWorker::~CWorker() {
|
|
qDebug() << "worker removed";
|
|
}
|
|
|
|
//TODO addUpload
|
|
void CWorker::addUpload(TransferData * transfer) {
|
|
transfer->status = TS_PENDING;
|
|
|
|
if (!m_Uploads.contains(transfer)) {
|
|
qDebug() << "adding upload";
|
|
transfer->id = m_IdCounter;
|
|
m_IdCounter++;
|
|
m_Uploads.enqueue(transfer);
|
|
}
|
|
else
|
|
qDebug() << "(re)adding upload";
|
|
|
|
if (m_Socket->bytesToWrite() == 0) {
|
|
qDebug() << "executing upload";
|
|
writeData();
|
|
}
|
|
}
|
|
//TODO removeUpload
|
|
void CWorker::removeUpload(TransferData * transfer) {
|
|
if (m_Uploads.contains(transfer) && transfer->status > TS_PENDING) {
|
|
transfer->status = TS_CLOSING;
|
|
if (m_Socket->bytesToWrite() == 0) {
|
|
qDebug() << "executing closedown";
|
|
writeData();
|
|
}
|
|
}
|
|
}
|
|
//TODO ? startUpload
|
|
// void CWorker::startUpload(TransferData * transfer) {
|
|
// if (m_Uploads.contains(transfer) && transfer->status != TS_PENDING)
|
|
// transfer->status = TS_PENDING;
|
|
//
|
|
// if (m_Socket->bytesToWrite() == 0) {
|
|
// qDebug() << "executing upload";
|
|
// writeData();
|
|
// }
|
|
// }
|
|
|
|
void CWorker::startUploadData(quint32 id) {
|
|
if (m_Uploads.isEmpty())
|
|
return;
|
|
|
|
TransferData * transfer = m_Uploads.head(); /*m_UploadDict.key(id);*/
|
|
|
|
if (transfer->id != id) {
|
|
qDebug() << "got invalid id:" << id << "... expected:" << transfer->id;
|
|
return;
|
|
}
|
|
|
|
qDebug() << "scheduling upload for transfer";
|
|
transfer->status = TS_TRANSFERING;
|
|
if (m_Socket->bytesToWrite() == 0) {
|
|
qDebug() << "executing upload";
|
|
writeData();
|
|
}
|
|
}
|
|
|
|
void CWorker::sendAcknowledge(quint32 id) {
|
|
QByteArray block;
|
|
QDataStream out(&block, QIODevice::WriteOnly);
|
|
out.setVersion(QDataStream::Qt_4_0);
|
|
|
|
TransferHeader header;
|
|
|
|
header.type = HT_ACK;
|
|
header.id = id;
|
|
header.length = 0;
|
|
|
|
out.writeRawData((const char *)(&header), sizeof(TransferHeader));
|
|
|
|
qDebug() << "sending HT_ACK" << id;
|
|
|
|
m_Socket->write(block);
|
|
qDebug() << "sent HT_ACK" << id;
|
|
}
|
|
|
|
//TODO CTransferThread::removeDownload
|
|
void CWorker::removeDownload(TransferData * /*transfer*/) {
|
|
|
|
}
|
|
|
|
void CWorker::setDestinationDir(QString & value) {
|
|
m_DestinationDir = value;
|
|
}
|
|
|
|
void CWorker::writeData() {
|
|
if (m_Uploads.isEmpty()) {
|
|
// if (m_UploadDict.isEmpty()) {
|
|
qDebug() << "no more uploads.";
|
|
return;
|
|
}
|
|
|
|
TransferData * transfer = m_Uploads.head();
|
|
|
|
if (transfer->status == TS_PENDING)
|
|
transfer->status = TS_ANNOUNCING;
|
|
|
|
QByteArray block;
|
|
QDataStream out(&block, QIODevice::ReadWrite);
|
|
out.setVersion(QDataStream::Qt_4_0);
|
|
|
|
TransferHeader header;
|
|
switch (transfer->status) {
|
|
case TS_ANNOUNCING:
|
|
{
|
|
qDebug() << "announcing" << transfer->id;
|
|
if (transfer->transfered)
|
|
transfer->transfered = 0;
|
|
|
|
qint64 oldPosition = block.size();
|
|
|
|
//fake write filename
|
|
out << transfer->fileName;
|
|
out.device()->seek(oldPosition);
|
|
|
|
// ANNOUNCE header with size and filename
|
|
header.type = HT_ANNOUNCE;
|
|
header.id = transfer->id;
|
|
header.length = quint32(block.size() - oldPosition) + sizeof(qint64);
|
|
|
|
out.writeRawData((const char *)(&header), sizeof(TransferHeader));
|
|
|
|
qDebug() << "sending size" << transfer->size;
|
|
out << transfer->size;
|
|
|
|
qDebug() << "sending filename" << transfer->fileName;
|
|
out << transfer->fileName;
|
|
|
|
transfer->status = TS_WAITING;
|
|
}
|
|
break;
|
|
case TS_TRANSFERING:
|
|
{
|
|
header.type = HT_DATA;
|
|
header.id = transfer->id;
|
|
if (transfer->transfered + DATA_BLOCK_SIZE < transfer->size)
|
|
header.length = DATA_BLOCK_SIZE;
|
|
else
|
|
header.length = transfer->size - transfer->transfered;
|
|
|
|
out.writeRawData((const char *)(&header), sizeof(TransferHeader));
|
|
|
|
char * buffer = new char[header.length];
|
|
|
|
QFile file(transfer->fileDir + QDir::separator() + transfer->fileName);
|
|
file.open(QIODevice::ReadOnly);
|
|
QDataStream in(&file);
|
|
if (in.skipRawData(transfer->transfered) == -1) {
|
|
qDebug() << "filename" << file.fileName();
|
|
qDebug() << "skip error";
|
|
qDebug() << "file size" << transfer->size;
|
|
qDebug() << "transfered bytes" << transfer->transfered;
|
|
}
|
|
if (in.readRawData(buffer, header.length) == -1) {
|
|
qDebug() << "Read error";
|
|
qDebug() << "buffer size" << header.length;
|
|
qDebug() << "file size" << transfer->size;
|
|
qDebug() << "transfered bytes" << transfer->transfered;
|
|
}
|
|
|
|
out.writeRawData((const char *)(buffer), header.length);
|
|
transfer->transfered += header.length;
|
|
delete[] buffer;
|
|
|
|
if (transfer->transfered >= transfer->size)
|
|
transfer->status = TS_CLOSING;
|
|
|
|
if (transfer->transfered > transfer->size) {
|
|
qDebug() << "overread?";
|
|
qDebug() << "file size" << transfer->size;
|
|
qDebug() << "transfered bytes" << transfer->transfered;
|
|
}
|
|
|
|
emit uploadUpdated(transfer);
|
|
}
|
|
break;
|
|
case TS_CLOSING:
|
|
header.type = HT_CLOSE;
|
|
header.id = transfer->id;
|
|
header.length = 0;
|
|
|
|
out.writeRawData((const char *)(&header), sizeof(TransferHeader));
|
|
|
|
transfer->status = TS_FINISHED;
|
|
|
|
m_Uploads.dequeue();
|
|
emit uploadUpdated(transfer);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!block.isEmpty())
|
|
m_Socket->write(block);
|
|
}
|
|
|
|
void CWorker::readHeader(QDataStream & in) {
|
|
if (m_Socket->bytesAvailable() >= (qint64)(sizeof(TransferHeader))) {
|
|
in.readRawData((char *)(&m_LastHeader), sizeof(TransferHeader));
|
|
m_LastHeaderValid = (qstrcmp(m_LastHeader.descriptor, DESCRIPTOR_STRING) == 0);
|
|
|
|
if (!m_LastHeaderValid) {
|
|
qDebug() << "got invalid header data";
|
|
qDebug() << "available Bytes" << m_Socket->bytesAvailable();
|
|
}
|
|
}
|
|
else
|
|
m_LastHeaderValid = false;
|
|
}
|
|
|
|
void CWorker::readData() {
|
|
QDataStream in(m_Socket);
|
|
in.setVersion(QDataStream::Qt_4_0);
|
|
|
|
if (!m_LastHeaderValid)
|
|
readHeader(in);
|
|
|
|
TransferData * target = NULL;
|
|
|
|
while (m_LastHeaderValid && m_Socket->bytesAvailable() >= m_LastHeader.length) {
|
|
// qDebug() << "available Bytes" << m_Socket->bytesAvailable() << "length" << m_LastHeader.length;
|
|
|
|
//look for existing id
|
|
if (m_LastHeader.type == HT_ACK) {
|
|
qDebug() << "got HT_ACK .. scheduling upload to start";
|
|
startUploadData(m_LastHeader.id);
|
|
}
|
|
else {
|
|
if (m_DownloadDict.contains(m_LastHeader.id)) {
|
|
if (m_LastHeader.type == HT_CLOSE) {
|
|
//finished or canceled by peer
|
|
|
|
qDebug() << "download closed py peer";
|
|
TransferData * closed = m_DownloadDict.take(m_LastHeader.id);
|
|
closed->status = TS_FINISHED;
|
|
emit downloadRemoved(closed);
|
|
}
|
|
else
|
|
//assign target
|
|
target = m_DownloadDict[m_LastHeader.id];
|
|
}
|
|
//id not in dict
|
|
else if (m_LastHeader.type == HT_ANNOUNCE) {
|
|
//new file announced
|
|
qDebug() << "download announced";
|
|
TransferData * newFile = new TransferData;
|
|
m_DownloadDict.insert(m_LastHeader.id, newFile);
|
|
newFile->transfered = 0;
|
|
newFile->size = 0;
|
|
newFile->localFile = false;
|
|
newFile->status = TS_WAITING;
|
|
newFile->fileDir = m_DestinationDir;
|
|
target = newFile;
|
|
}
|
|
|
|
//check valid target and data available
|
|
if (target && m_LastHeader.length) {
|
|
switch (m_LastHeader.type) {
|
|
case HT_ANNOUNCE:
|
|
qDebug() << "reading size..";
|
|
in >> target->size;
|
|
qDebug() << "got size:" << target->size;
|
|
qDebug() << "reading filename..";
|
|
in >> target->fileName;
|
|
qDebug() << "got filename:" << target->fileName;
|
|
emit downloadUpdated(target);
|
|
qDebug() << "trying to send HT_ACK";
|
|
|
|
//TODO better do this async
|
|
sendAcknowledge(m_LastHeader.id);
|
|
break;
|
|
case HT_DATA:
|
|
{
|
|
// qDebug() << "got data" << target->transfered << '/' << target->size;
|
|
QFile file(target->fileDir + QDir::separator() + target->fileName);
|
|
if (target->status == TS_WAITING) {
|
|
target->status = TS_TRANSFERING;
|
|
emit downloadAdded(target);
|
|
file.open(QIODevice::WriteOnly | QIODevice::Truncate);
|
|
}
|
|
else if (target->status == TS_TRANSFERING)
|
|
file.open(QIODevice::WriteOnly | QIODevice::Append);
|
|
else {
|
|
in.skipRawData(m_LastHeader.length);
|
|
qDebug() << "transfer not ready to recieve data. status is" << target->status;
|
|
qDebug() << "skipping" << m_LastHeader.length << "bytes of data";
|
|
break;
|
|
}
|
|
|
|
char * buffer = new char[m_LastHeader.length];
|
|
if (in.readRawData(buffer, m_LastHeader.length) == -1) {
|
|
qDebug() << "error reading from socket";
|
|
qDebug() << "length" << m_LastHeader.length;
|
|
qDebug() << "available Bytes" << m_Socket->bytesAvailable();
|
|
}
|
|
|
|
QDataStream out(&file);
|
|
out.writeRawData((const char *)(buffer), m_LastHeader.length);
|
|
target->transfered += m_LastHeader.length;
|
|
delete[] buffer;
|
|
|
|
emit downloadUpdated(target);
|
|
}
|
|
break;
|
|
default:
|
|
in.skipRawData(m_LastHeader.length);
|
|
qDebug() << "unknown header";
|
|
qDebug() << "skipping" << m_LastHeader.length << "bytes of data";
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
readHeader(in);
|
|
}
|
|
}
|
|
|
|
void CWorker::writePing() {
|
|
qDebug() << "write ping... thread id" << QThread::currentThreadId();
|
|
if (m_IdCounter > 10)
|
|
return;
|
|
|
|
QByteArray block;
|
|
QDataStream out(&block, QIODevice::WriteOnly);
|
|
out.setVersion(QDataStream::Qt_4_0);
|
|
|
|
TransferHeader header;
|
|
|
|
header.type = HT_ACK;
|
|
header.id = m_IdCounter++;
|
|
header.length = 0;
|
|
|
|
out.writeRawData((const char *)(&header), sizeof(TransferHeader));
|
|
|
|
qDebug() << "sending Ping..." << header.id;
|
|
if (m_Socket->write(block) == -1)
|
|
qDebug() << "error";
|
|
else
|
|
qDebug() << "done";
|
|
}
|
|
|
|
void CWorker::readPing() {
|
|
qDebug() << "read ping... thread id" << QThread::currentThreadId();
|
|
|
|
QDataStream in(m_Socket);
|
|
in.setVersion(QDataStream::Qt_4_0);
|
|
|
|
do {
|
|
if (m_Socket->bytesAvailable() >= (qint64)(sizeof(TransferHeader))) {
|
|
in.readRawData((char *)(&m_LastHeader), sizeof(TransferHeader));
|
|
m_LastHeaderValid = (qstrcmp(m_LastHeader.descriptor, DESCRIPTOR_STRING) == 0);
|
|
|
|
if (m_LastHeaderValid)
|
|
qDebug() << "got valid ping" << m_LastHeader.id;
|
|
else
|
|
qDebug() << "got invalid ping" << m_LastHeader.id;
|
|
|
|
writePing();
|
|
}
|
|
else
|
|
m_LastHeaderValid = false;
|
|
}
|
|
while (m_LastHeaderValid);
|
|
}
|
|
|
|
void CWorker::error(QAbstractSocket::SocketError) {
|
|
qDebug() << m_Socket->errorString();
|
|
}
|
|
}
|
|
|