Simulator Sandbox prevents loading test data from .csv file - would be beneficial to be togglable feature

[BKN46]

I'm trying to read some record data to do the data replay like this:

-- start at the simulator config:
rec_file = "data/400m.csv"
data = {}
for line in io.lines(rec_file) do
    table.insert(data, split(line, ","))
end

-- in onLBSimulatorTick function:
simulator:setInputNumber(11, data[ticks % #data + 1][1])
simulator:setInputNumber(12, data[ticks % #data + 1][2])
simulator:setInputNumber(13, data[ticks % #data + 1][3])

It worked fine on earlier version. But on latest version, it pops up a exception:

Exception has occurred: MyMicrocontroller.lua:22: attempt to index a nil value (global 'io')
stack traceback:
	MyMicrocontroller.lua:22: in field '?'
	.../Common/LifeBoatAPI/Tools/Simulator/SimulatorSandbox.lua:67: in field 'require'
	_build/_simulator.lua:29: in main chunk
	[C]: in ?

I tried to manually require io or iolib, but it turned to Could not find require: io.

How can I fix this? Or is it possible to provide a data read interface?

[nameouschangey]

Hey, the simulator is currently heavily sandboxed, to prevent people transmitting malicious code via libraries (and to replicate the in-game experience more closely)

I can see the benefit of what you're doing; perhaps just making the sandbox optional would be the way to go? I think for 99% of people there'll be no reason to change it, but it looks like you're reading test data out of a csv, which is pretty awesome - and I want you to be able to do that.

Does that sound like a solution you'd be comfortable with?

[BKN46]

That's sounds cool to me. I never thought about security aspect. Really appreciate your work, looking forward to coming version :)

[nameouschangey]

Awesome, I'll get that in when I get a chance.

There wasn't a security issue before - until adding the "auto-updating git libraries" feature; at which point, realised it would take 10 seconds for somebody to maliciously distribute a library with os.execute("rmdir C:/Users") or worse 😅