add: API for testing the online judge

[Mahboob-A]

• API CodeSubmitRobustAPI to test the online judge.

• the client needs to pass the data following:

{
"lang":"cpp", 
"code":"cpp code", 
"input":"input for the code as list", 
"testcases":"testcases for the correct answers as list"
}

[sweep-ai]

Sweep: PR Review

Authors of pull request: @Mahboob-A

src/core_apps/judge_engine/views.py

Introduced two new API classes for handling code submissions using Docker containers, with detailed error handling and file operations.

Sweep Found These Issues

• The CodeSubmitSimpleImplementation class does not handle the cleanup of the created files in the host system, which could lead to disk space issues over time.

online-judge/src/core_apps/judge_engine/views.py

Lines 47 to 50 in c8d2659

	file_path = f"user-files/{random.randint(10, 100000)}"
	curr_path = os.getcwd()
	print("curr path: ", os.getcwd())
	new_file_path = os.path.join(curr_path, file_path)


View Diff
• The CodeSubmitSimpleImplementation class does not handle the cleanup of the created files in the host system, which could lead to disk space issues over time.

online-judge/src/core_apps/judge_engine/views.py

Lines 47 to 50 in c8d2659

	file_path = f"user-files/{random.randint(10, 100000)}"
	curr_path = os.getcwd()
	print("curr path: ", os.getcwd())
	new_file_path = os.path.join(curr_path, file_path)


View Diff
• Sweep has identified a redundant function: The new function is redundant because its functionality is already covered by the _run_container method in CodeContainerHandler and the post method in CodeSubmitRobustAPI.

online-judge/src/core_apps/judge_engine/views.py

Lines 36 to 97 in c8d2659

	def post(self, request):
	start = time.time()
	lang = request.data.get("lang")
	code = request.data.get("code")
	input_data = request.data.get("input")
	print("Code: ", code)
	client = from_env()
	file_path = f"user-files/{random.randint(10, 100000)}"
	curr_path = os.getcwd()
	print("curr path: ", os.getcwd())
	new_file_path = os.path.join(curr_path, file_path)
	try:
	# Create and start a container
	container = client.containers.run(
	"simple_cpp", # Image name
	volumes={
	f"{new_file_path}/": {
	"bind": "/user-files",
	"mode": "rw",
	}
	},
	command=[
	"sh",
	"-c",
	f'echo "{code}" > /user-files/code.cpp && echo "{input_data}" > /user-files/input.txt && g++ /user-files/code.cpp -o /user-files/code && /user-files/code < /user-files/input.txt > /user-files/output.txt',
	],
	detach=True,
	)
	# Wait for the container to finish
	result = container.wait()
	print("result: ", result)
	# Get the logs (output)
	output = container.logs().decode("utf-8")
	with open(f"{new_file_path}/output.txt", "r") as f:
	data = f.read()
	print("data: ", data)
	# Remove the container
	container.remove()
	end = time.time()
	print("total time taken: ", end - start)
	# Return output to the user
	return JsonResponse({"output": output})
	except docker.errors.ContainerError as e:
	print(f"Error: {e}")
	return JsonResponse({"error": str(e)}, status=500)
	except Exception as e:
	print(f"Unexpected error: {e}")
	return JsonResponse({"error": "An unexpected error occurred"}, status=500)
	# return JsonResponse({"error": "Method not allowed"}, status=405)


View Diff
• Sweep has identified a redundant function: The new function is redundant because its functionality is already covered by the post method in CodeSubmitSimpleImplementation and the code_exec_engine function.

online-judge/src/core_apps/judge_engine/views.py

Lines 106 to 128 in c8d2659

	def post(self, request):
	"""Submit code to execute in secure docker container."""
	lang = request.data.get("lang")
	code = request.data.get("code")
	input_file = request.data.get("input")
	testcases = request.data.get("testcases")
	# print('lang: ', lang)
	# print("code: ", code)
	# print("input file ", input_file)
	# print("testcases: ", testcases)
	# print('request.data: ', request.data)
	# print('\ntype of requst.data: ', type(request.data))
	# print('\ntype of code: ', type(code))
	# print('\ntype of input: ', type(input_file))
	submission_id = uuid.uuid4()
	data = code_exec_engine(user_codes=request.data, submission_id=submission_id)
	return JsonResponse({"submission_id": submission_id, "data": data}, status=200)


View Diff

---

src/online_judge/urls.py

Added a new URL pattern for "submit/" and removed extensive comments from the URL configuration file.

---

[Mahboob-A]

Run your local server.
cd to where your manage.py file is located and run:

python manage.py runserver 

POST request to the API 127.0.0.1:8000/submit/robust-execute/ as the following:

You will receive the response as following:

[Mahboob-A]

The logs are generated as below:

[Mahboob-A]

Sweep: PR Review

Authors of pull request: @Mahboob-A

src/core_apps/judge_engine/views.py
Introduced two new API classes for handling code submissions using Docker containers, with detailed error handling and file operations.

Sweep Found These Issues

• The CodeSubmitSimpleImplementation class does not handle the cleanup of the created files in the host system, which could lead to disk space issues over time.
  

  online-judge/src/core_apps/judge_engine/views.py

  Lines 47 to 50 in c8d2659

  	file_path = f"user-files/{random.randint(10, 100000)}"
  	curr_path = os.getcwd()
  	print("curr path: ", os.getcwd())
  	new_file_path = os.path.join(curr_path, file_path)

View Diff

• The CodeSubmitSimpleImplementation class does not handle the cleanup of the created files in the host system, which could lead to disk space issues over time.
  

  online-judge/src/core_apps/judge_engine/views.py

  Lines 47 to 50 in c8d2659

  	file_path = f"user-files/{random.randint(10, 100000)}"
  	curr_path = os.getcwd()
  	print("curr path: ", os.getcwd())
  	new_file_path = os.path.join(curr_path, file_path)

View Diff

• Sweep has identified a redundant function: The new function is redundant because its functionality is already covered by the _run_container method in CodeContainerHandler and the post method in CodeSubmitRobustAPI.
  

  online-judge/src/core_apps/judge_engine/views.py

  Lines 36 to 97 in c8d2659

  	def post(self, request):
  	start = time.time()
  	lang = request.data.get("lang")
  	code = request.data.get("code")
  	input_data = request.data.get("input")
  	print("Code: ", code)
  	client = from_env()
  	file_path = f"user-files/{random.randint(10, 100000)}"
  	curr_path = os.getcwd()
  	print("curr path: ", os.getcwd())
  	new_file_path = os.path.join(curr_path, file_path)
  	try:
  	# Create and start a container
  	container = client.containers.run(
  	"simple_cpp", # Image name
  	volumes={
  	f"{new_file_path}/": {
  	"bind": "/user-files",
  	"mode": "rw",
  	}
  	},
  	command=[
  	"sh",
  	"-c",
  	f'echo "{code}" > /user-files/code.cpp && echo "{input_data}" > /user-files/input.txt && g++ /user-files/code.cpp -o /user-files/code && /user-files/code < /user-files/input.txt > /user-files/output.txt',
  	],
  	detach=True,
  	)
  	# Wait for the container to finish
  	result = container.wait()
  	print("result: ", result)
  	# Get the logs (output)
  	output = container.logs().decode("utf-8")
  	with open(f"{new_file_path}/output.txt", "r") as f:
  	data = f.read()
  	print("data: ", data)
  	# Remove the container
  	container.remove()
  	end = time.time()
  	print("total time taken: ", end - start)
  	# Return output to the user
  	return JsonResponse({"output": output})
  	except docker.errors.ContainerError as e:
  	print(f"Error: {e}")
  	return JsonResponse({"error": str(e)}, status=500)
  	except Exception as e:
  	print(f"Unexpected error: {e}")
  	return JsonResponse({"error": "An unexpected error occurred"}, status=500)
  	# return JsonResponse({"error": "Method not allowed"}, status=405)

View Diff

• Sweep has identified a redundant function: The new function is redundant because its functionality is already covered by the post method in CodeSubmitSimpleImplementation and the code_exec_engine function.
  

  online-judge/src/core_apps/judge_engine/views.py

  Lines 106 to 128 in c8d2659

  	def post(self, request):
  	"""Submit code to execute in secure docker container."""
  	lang = request.data.get("lang")
  	code = request.data.get("code")
  	input_file = request.data.get("input")
  	testcases = request.data.get("testcases")
  	# print('lang: ', lang)
  	# print("code: ", code)
  	# print("input file ", input_file)
  	# print("testcases: ", testcases)
  	# print('request.data: ', request.data)
  	# print('\ntype of requst.data: ', type(request.data))
  	# print('\ntype of code: ', type(code))
  	# print('\ntype of input: ', type(input_file))
  	submission_id = uuid.uuid4()
  	data = code_exec_engine(user_codes=request.data, submission_id=submission_id)
  	return JsonResponse({"submission_id": submission_id, "data": data}, status=200)

View Diff

src/online_judge/urls.py
Added a new URL pattern for "submit/" and removed extensive comments from the URL configuration file.

The files can not be deleted in case of using the simple API approach. hence please use the Robust API.