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scriptcontainer.cpp
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scriptcontainer.cpp
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#include <QJSValueIterator>
#include <QDebug>
#include "scriptcontainer.h"
#include "connections/canconmanager.h"
ScriptContainer::ScriptContainer()
{
qDebug() << "Script Container Constructor";
scriptEngine = new QJSEngine();
canHelper = new CANScriptHelper(scriptEngine);
isoHelper = new ISOTPScriptHelper(scriptEngine);
udsHelper = new UDSScriptHelper(scriptEngine);
connect(&timer, SIGNAL(timeout()), this, SLOT(tick()));
}
ScriptContainer::~ScriptContainer()
{
qDebug() << "Script Container Destructor " << (uint64_t)this << "c: " << (uint64_t)canHelper;
timer.stop();
disconnect(&timer, SIGNAL(timeout()), this, SLOT(tick()));
if (scriptEngine)
{
scriptText = "";
compileScript();
//delete scriptEngine; //doing this here seems to cause a crash. No crash if you don't.
//scriptEngine = nullptr;
}
if (canHelper)
{
delete canHelper;
canHelper = nullptr;
}
if (isoHelper)
{
delete isoHelper;
isoHelper = nullptr;
}
if (udsHelper)
{
delete udsHelper;
udsHelper = nullptr;
}
qDebug() << "end of destruct";
}
void ScriptContainer::compileScript()
{
QJSValue result = scriptEngine->evaluate(scriptText, fileName);
emit sendLog("Compiling script...");
canHelper->clearFilters();
isoHelper->clearFilters();
udsHelper->clearFilters();
if (result.isError())
{
emit sendLog("SCRIPT EXCEPTION!");
emit sendLog("Line: " + result.property("lineNumber").toString());
emit sendLog(result.property("message").toString());
emit sendLog("Stack:");
emit sendLog(result.property("stack").toString());
}
else
{
compiledScript = result;
//Add a bunch of helper objects into javascript that the scripts
//can use to interact with the CAN buses
QJSValue hostObj = scriptEngine->newQObject(this);
scriptEngine->globalObject().setProperty("host", hostObj);
QJSValue canObj = scriptEngine->newQObject(canHelper);
scriptEngine->globalObject().setProperty("can", canObj);
QJSValue isoObj = scriptEngine->newQObject(isoHelper);
scriptEngine->globalObject().setProperty("isotp", isoObj);
QJSValue udsObj = scriptEngine->newQObject(udsHelper);
scriptEngine->globalObject().setProperty("uds", udsObj);
//Find out which callbacks the script has created.
setupFunction = scriptEngine->globalObject().property("setup");
canHelper->setRxCallback(scriptEngine->globalObject().property("gotCANFrame"));
isoHelper->setRxCallback(scriptEngine->globalObject().property("gotISOTPMessage"));
udsHelper->setRxCallback(scriptEngine->globalObject().property("gotUDSMessage"));
tickFunction = scriptEngine->globalObject().property("tick");
if (setupFunction.isCallable())
{
qDebug() << "setup exists";
QJSValue res = setupFunction.call();
if (res.isError())
{
emit sendLog("Error in setup function on line " + res.property("lineNumber").toString());
emit sendLog(res.property("message").toString());
}
}
if (tickFunction.isCallable()) qDebug() << "tick exists";
}
}
void ScriptContainer::setScriptWindow(ScriptingWindow *win)
{
window = win;
connect(this, &ScriptContainer::sendLog, window, &ScriptingWindow::log);
}
void ScriptContainer::log(QJSValue logString)
{
QString val = logString.toString();
emit sendLog(val);
}
void ScriptContainer::setTickInterval(QJSValue interval)
{
int intervalValue = interval.toInt();
qDebug() << "called set tick interval with value " << intervalValue;
if (intervalValue > 0)
{
timer.setInterval(intervalValue);
timer.start();
}
else timer.stop();
}
void ScriptContainer::tick()
{
if (tickFunction.isCallable())
{
//qDebug() << "Calling tick function";
QJSValue res = tickFunction.call();
if (res.isError())
{
emit sendLog("Error in tick function on line " + res.property("lineNumber").toString());
emit sendLog(res.property("message").toString());
}
}
}
void ScriptContainer::addParameter(QJSValue name)
{
scriptParams.append(name.toString());
}
void ScriptContainer::updateValuesTable(QTableWidget *widget)
{
QString valu;
foreach (QString paramName, scriptParams)
{
valu = scriptEngine->globalObject().property(paramName).toString();
qDebug() << paramName << " - " << valu;
bool found = false;
for (int i = 0; i < widget->rowCount(); i++)
{
if (widget->item(i, 0) && widget->item(i, 0)->text().compare(paramName) == 0)
{
found = true;
if (!widget->item(i, 1)->isSelected())
{
widget->item(i,1)->setText(valu);
}
break;
}
}
if (!found)
{
int row = widget->rowCount();
widget->insertRow(widget->rowCount());
QTableWidgetItem *item;
item = new QTableWidgetItem();
item->setText(paramName);
item->setFlags(Qt::ItemIsEnabled);
widget->setItem(row, 0, item);
item = new QTableWidgetItem();
item->setText(valu);
widget->setItem(row, 1, item);
}
}
}
void ScriptContainer::updateParameter(QString name, QString value)
{
qDebug() << name << " * " << value;
QJSValue val(value);
scriptEngine->globalObject().setProperty(name, val);
}
/* CANScriptHandler Methods */
CANScriptHelper::CANScriptHelper(QJSEngine *engine)
{
scriptEngine = engine;
}
void CANScriptHelper::setRxCallback(QJSValue cb)
{
gotFrameFunction = cb;
}
void CANScriptHelper::setFilter(QJSValue id, QJSValue mask, QJSValue bus)
{
uint32_t idVal = id.toUInt();
uint32_t maskVal = mask.toUInt();
int busVal = bus.toInt();
qDebug() << "Called set filter";
qDebug() << idVal << "*" << maskVal << "*" << busVal;
CANFilter filter;
filter.setFilter(idVal, maskVal, busVal);
filters.append(filter);
CANConManager::getInstance()->addTargettedFrame(busVal, idVal, maskVal, this);
}
void CANScriptHelper::clearFilters()
{
qDebug() << "Called clear filters";
foreach (CANFilter filter, filters)
{
CANConManager::getInstance()->removeTargettedFrame(filter.bus, filter.ID, filter.mask, this);
}
filters.clear();
}
void CANScriptHelper::sendFrame(QJSValue bus, QJSValue id, QJSValue length, QJSValue data)
{
CANFrame frame;
frame.extended = false;
frame.remote = false;
frame.ID = static_cast<uint32_t>(id.toInt());
frame.len = length.toUInt();
if (frame.len > 8) frame.len = 8;
if (!data.isArray()) qDebug() << "data isn't an array";
for (unsigned int i = 0; i < frame.len; i++)
{
frame.data[i] = (uint8_t)data.property(i).toInt();
}
frame.bus = (uint32_t)bus.toInt();
//if (frame.bus > 1) frame.bus = 1;
if (frame.ID > 0x7FF) frame.extended = true;
qDebug() << "sending frame from script";
CANConManager::getInstance()->sendFrame(frame);
}
void CANScriptHelper::gotTargettedFrame(const CANFrame &frame)
{
if (!gotFrameFunction.isCallable()) return; //nothing to do if we can't even call the function
//qDebug() << "Got frame in script interface";
for (int i = 0; i < filters.length(); i++)
{
if (filters[i].checkFilter(frame.ID, frame.bus))
{
QJSValueList args;
args << frame.bus << frame.ID << frame.len;
QJSValue dataBytes = scriptEngine->newArray(frame.len);
for (unsigned int j = 0; j < frame.len; j++) dataBytes.setProperty(j, QJSValue(frame.data[j]));
args.append(dataBytes);
gotFrameFunction.call(args);
return; //as soon as one filter matches we jump out
}
}
}
/* ISOTPScriptHelper methods */
ISOTPScriptHelper::ISOTPScriptHelper(QJSEngine *engine)
{
scriptEngine = engine;
handler = new ISOTP_HANDLER;
connect(handler, SIGNAL(newISOMessage(ISOTP_MESSAGE)), this, SLOT(newISOMessage(ISOTP_MESSAGE)));
handler->setReception(true);
handler->setFlowCtrl(true);
}
void ISOTPScriptHelper::clearFilters()
{
handler->clearAllFilters();
}
void ISOTPScriptHelper::setFilter(QJSValue id, QJSValue mask, QJSValue bus)
{
uint32_t idVal = id.toUInt();
uint32_t maskVal = mask.toUInt();
int busVal = bus.toInt();
qDebug() << "Called isotp set filter";
qDebug() << idVal << "*" << maskVal << "*" << busVal;
handler->addFilter(busVal, idVal, maskVal);
}
void ISOTPScriptHelper::sendISOTP(QJSValue bus, QJSValue id, QJSValue length, QJSValue data)
{
ISOTP_MESSAGE msg;
msg.extended = false;
msg.ID = id.toInt();
msg.len = length.toUInt();
if (!data.isArray()) qDebug() << "data isn't an array";
for (int i = 0; i < msg.len; i++)
{
msg.data[i] = static_cast<uint8_t>(data.property(i).toInt());
}
msg.bus = bus.toInt();
if (msg.ID > 0x7FF) msg.extended = true;
qDebug() << "sending isotp message from script";
handler->sendISOTPFrame(msg.bus, msg.ID, msg.data);
}
void ISOTPScriptHelper::setRxCallback(QJSValue cb)
{
gotFrameFunction = cb;
}
void ISOTPScriptHelper::newISOMessage(ISOTP_MESSAGE msg)
{
qDebug() << "isotpScriptHelper got a ISOTP message";
if (!gotFrameFunction.isCallable()) return; //nothing to do if we can't even call the function
//qDebug() << "Got frame in script interface";
QJSValueList args;
args << msg.bus << msg.ID << msg.len;
QJSValue dataBytes = scriptEngine->newArray(static_cast<uint>(msg.len));
for (int j = 0; j < msg.len; j++) dataBytes.setProperty(static_cast<quint32>(j), QJSValue(msg.data[j]));
args.append(dataBytes);
gotFrameFunction.call(args);
}
/* UDSScriptHelper methods */
UDSScriptHelper::UDSScriptHelper(QJSEngine *engine)
{
scriptEngine = engine;
handler = new UDS_HANDLER;
connect(handler, SIGNAL(newUDSMessage(UDS_MESSAGE)), this, SLOT(newUDSMessage(UDS_MESSAGE)));
handler->setReception(true);
handler->setFlowCtrl(true); //uds potentially requires flow control so turn it on
}
void UDSScriptHelper::clearFilters()
{
handler->clearAllFilters();
}
void UDSScriptHelper::setFilter(QJSValue id, QJSValue mask, QJSValue bus)
{
uint32_t idVal = id.toUInt();
uint32_t maskVal = mask.toUInt();
int busVal = bus.toInt();
qDebug() << "Called uds set filter";
qDebug() << idVal << "*" << maskVal << "*" << busVal;
handler->addFilter(busVal, idVal, maskVal);
}
void UDSScriptHelper::sendUDS(QJSValue bus, QJSValue id, QJSValue service, QJSValue sublen, QJSValue subFunc, QJSValue length, QJSValue data)
{
UDS_MESSAGE msg;
msg.extended = false;
msg.ID = id.toUInt();
msg.len = length.toUInt();
msg.service = service.toUInt();
msg.subFuncLen = sublen.toUInt();
msg.subFunc = subFunc.toUInt();
if (!data.isArray()) qDebug() << "data isn't an array";
msg.data.reserve(msg.len);
for (int i = 0; i < msg.len; i++)
{
msg.data.append(static_cast<uint8_t>(data.property(static_cast<quint32>(i)).toInt()));
}
msg.bus = bus.toInt();
if (msg.ID > 0x7FF) msg.extended = true;
qDebug() << "sending UDS message from script";
handler->sendUDSFrame(msg);
}
void UDSScriptHelper::setRxCallback(QJSValue cb)
{
gotFrameFunction = cb;
}
void UDSScriptHelper::newUDSMessage(UDS_MESSAGE msg)
{
//qDebug() << "udsScriptHelper got a UDS message";
qDebug() << "UDS script helper. Msg data len: " << msg.len;
if (!gotFrameFunction.isCallable()) return; //nothing to do if we can't even call the function
qDebug() << "Got frame in script interface";
QJSValueList args;
args << msg.bus << msg.ID << msg.service << msg.subFunc << msg.len;
QJSValue dataBytes = scriptEngine->newArray(static_cast<unsigned int>(msg.len));
for (int j = 0; j < msg.data.length(); j++) dataBytes.setProperty(static_cast<quint32>(j), QJSValue(msg.data[j]));
args.append(dataBytes);
gotFrameFunction.call(args);
}