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A judge (?) written in go.

License: MIT License

Go 97.24% C++ 2.45% Python 0.31%

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go-judge's Issues

Make compiled binary folder a `Judge` parameter

The binary folder (.compiled_bin) is hard coded. This should be a a parameter of Judge and should be configurable like {source_file} and {compiled_program}.

go-judge/cpp.go

Lines 9 to 12 in 87c5126

 compileCmd: "g++", 

 compileArgs: []string{"{source_file}"}, 

 runCmd: ".compiled_bin/{compiled_program}", // TODO: Don't hardcode compiled folder 

 runArgs: []string{},

Ref (place where {compiled_program} is replaced):

go-judge/judge_run.go

Lines 105 to 111 in 87c5126

 func (judge *Judge) replaceRunCommands() { 

 judge.runCmd = judge.replaceCommands(judge.runCmd) 

 for idx, val := range judge.runArgs { 

 judge.runArgs[idx] = judge.replaceCommands(val) 

 } 

 }

The programs should be run in a sandbox

We now, make a directory with execute access to put the binaries and run them. This is dangerous (for web servers) as malicious code can be run.

Ideally every program run should be sandboxed.

Maybe take a look at pshved/timeout.

Relevent code:

go-judge/judge_run.go

Lines 17 to 19 in 87c5126

 // XXX This is dangerous and should not be used on a webserver 

 // TODO: Run the program in a sandbox 

 _ = os.Mkdir(".compiled_bin", 0777)

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	compileCmd: "g++",
	compileArgs: []string{"{source_file}"},
	runCmd: ".compiled_bin/{compiled_program}", // TODO: Don't hardcode compiled folder
	runArgs: []string{},

	func (judge *Judge) replaceRunCommands() {
	judge.runCmd = judge.replaceCommands(judge.runCmd)

	for idx, val := range judge.runArgs {
	judge.runArgs[idx] = judge.replaceCommands(val)
	}
	}

	// XXX This is dangerous and should not be used on a webserver
	// TODO: Run the program in a sandbox
	_ = os.Mkdir(".compiled_bin", 0777)