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#include "baselineprotocol.h"
#include <QLibraryInfo>
#include <QImage>
#include <QBuffer>
#include <QHostInfo>
PlatformInfo::PlatformInfo(bool useLocal)
{
if (useLocal) {
buildKey = QLibraryInfo::buildKey();
qtVersion = QLatin1String(qVersion());
hostname = QHostInfo::localHostName();
}
}
QDataStream & operator<< (QDataStream &stream, const PlatformInfo &pinfo)
{
stream << pinfo.buildKey << pinfo.qtVersion << pinfo.hostname;
return stream;
}
QDataStream & operator>> (QDataStream& stream, PlatformInfo& pinfo)
{
stream >> pinfo.buildKey >> pinfo.qtVersion >> pinfo.hostname;
return stream;
}
ImageItem &ImageItem::operator=(const ImageItem &other)
{
scriptName = other.scriptName;
scriptChecksum = other.scriptChecksum;
status = other.status;
renderFormat = other.renderFormat;
engine = other.engine;
image = other.image;
imageChecksum = other.imageChecksum;
return *this;
}
quint64 ImageItem::computeChecksum(const QImage &image)
{
//### Just fake it for now
return qChecksum((const char *)image.constScanLine(50), image.bytesPerLine());
}
QDataStream & operator<< (QDataStream &stream, const ImageItem &ii)
{
stream << ii.scriptName << ii.scriptChecksum << quint8(ii.status) << quint8(ii.renderFormat)
<< quint8(ii.engine) << ii.image << ii.imageChecksum;
return stream;
}
QDataStream & operator>> (QDataStream &stream, ImageItem &ii)
{
quint8 encFormat, encStatus, encEngine;
stream >> ii.scriptName >> ii.scriptChecksum >> encStatus >> encFormat
>> encEngine >> ii.image >> ii.imageChecksum;
ii.renderFormat = QImage::Format(encFormat);
ii.status = ImageItem::ItemStatus(encStatus);
ii.engine = ImageItem::GraphicsEngine(encEngine);
return stream;
}
BaselineProtocol::~BaselineProtocol()
{
socket.close();
if (socket.state() != QTcpSocket::UnconnectedState)
socket.waitForDisconnected(Timeout);
}
bool BaselineProtocol::connect()
{
errMsg.clear();
//###TBD: determine server address; for now local devhost
QLatin1String serverName("chimera.europe.nokia.com");
socket.connectToHost(serverName, ServerPort);
if (!socket.waitForConnected(Timeout)) {
errMsg += QLatin1String("TCP connectToHost failed. Host:") + serverName + QLatin1String(" port:") + QString::number(ServerPort);
return false;
}
PlatformInfo pi(true);
QByteArray block;
QDataStream ds(&block, QIODevice::ReadWrite);
ds << pi;
if (!sendBlock(AcceptPlatformInfo, block)) {
errMsg += QLatin1String("Failed to send data to server.");
return false;
}
Command cmd = Ack;
if (!receiveBlock(&cmd, &block) || cmd != Ack) {
errMsg += QLatin1String("Failed to get response from server.");
return false;
}
return true;
}
bool BaselineProtocol::acceptConnection(PlatformInfo *pi)
{
errMsg.clear();
QByteArray block;
Command cmd = AcceptPlatformInfo;
if (!receiveBlock(&cmd, &block) || cmd != AcceptPlatformInfo)
return false;
if (pi) {
QDataStream ds(block);
ds >> *pi;
}
if (!sendBlock(Ack, QByteArray()))
return false;
return true;
}
bool BaselineProtocol::requestBaselineChecksums(ImageItemList *itemList)
{
errMsg.clear();
if (!itemList)
return false;
QByteArray block;
QDataStream ds(&block, QIODevice::ReadWrite);
ds << *itemList;
if (!sendBlock(RequestBaselineChecksums, block))
return false;
Command cmd;
if (!receiveBlock(&cmd, &block))
return false;
ds.device()->seek(0);
ds >> *itemList;
return true;
}
bool BaselineProtocol::submitNewBaseline(const ImageItem &item, QByteArray *serverMsg)
{
Command cmd;
return (sendItem(AcceptNewBaseline, item) && receiveBlock(&cmd, serverMsg) && cmd == Ack);
}
bool BaselineProtocol::submitMismatch(const ImageItem &item, QByteArray *serverMsg)
{
Command cmd;
return (sendItem(AcceptMismatch, item) && receiveBlock(&cmd, serverMsg) && cmd == Ack);
}
bool BaselineProtocol::sendItem(Command cmd, const ImageItem &item)
{
errMsg.clear();
QBuffer buf;
buf.open(QIODevice::WriteOnly);
QDataStream ds(&buf);
ds << item;
if (!sendBlock(cmd, buf.data())) {
errMsg.prepend(QLatin1String("Failed to submit image to server. "));
return false;
}
return true;
}
bool BaselineProtocol::sendBlock(Command cmd, const QByteArray &block)
{
QDataStream s(&socket);
// TBD: set qds version as a constant
s << quint16(ProtocolVersion) << quint16(cmd);
s.writeBytes(block.constData(), block.size());
return true;
}
bool BaselineProtocol::receiveBlock(Command *cmd, QByteArray *block)
{
while (socket.bytesAvailable() < int(2*sizeof(quint16) + sizeof(quint32))) {
if (!socket.waitForReadyRead(Timeout))
return false;
}
QDataStream ds(&socket);
quint16 rcvProtocolVersion, rcvCmd;
ds >> rcvProtocolVersion >> rcvCmd;
if (rcvProtocolVersion != ProtocolVersion) {
// TBD: More resilient handling of this case; the server should accept client's version
errMsg = QLatin1String("Server protocol version mismatch, received:") + QString::number(rcvProtocolVersion);
return false;
}
if (cmd)
*cmd = Command(rcvCmd);
QByteArray uMsg;
quint32 remaining;
ds >> remaining;
uMsg.resize(remaining);
int got = 0;
char* uMsgBuf = uMsg.data();
do {
got = ds.readRawData(uMsgBuf, remaining);
remaining -= got;
uMsgBuf += got;
} while (remaining && got >= 0 && socket.waitForReadyRead(Timeout));
if (got < 0)
return false;
if (block)
*block = uMsg;
return true;
}
QString BaselineProtocol::errorMessage()
{
QString ret = errMsg;
if (socket.error() >= 0)
ret += QLatin1String(" Socket state: ") + socket.errorString();
return ret;
}
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