This commit is contained in:
Benjamin Loh 2023-10-23 15:38:59 +08:00
commit 56b128d5d4
2 changed files with 65 additions and 68 deletions

View File

@ -3,15 +3,20 @@ import json
import time import time
url = "http://127.0.0.1:8000/api/files/" url = "http://127.0.0.1:8000/api/files/"
file = {'file': open('test.text', 'rb')}
# Send test.text and test2.text to server as a list
files = [('file', open('test.text', 'rb')), ('file', open('test2.text', 'rb'))]
data = {'ttl': 2} data = {'ttl': 2}
r = requests.post(url, files=file, data=data) r = requests.post(url, files=files, data=data)
# Print response message # Print response message
print(json.dumps(r.json(), indent=4)) print(json.dumps(r.json(), indent=4))
key = r.json()['key'] for msg in r.json():
print(msg['key'])
print(msg['msg'])
key = msg['key']
# Wait for file to expire # Wait for file to expire
time.sleep(3) time.sleep(3)

View File

@ -7,21 +7,15 @@ from rest_framework.decorators import api_view
from rest_framework.response import Response from rest_framework.response import Response
from django.core.cache import cache from django.core.cache import cache
# redis_instance = redis.StrictRedis(host=settings.REDIS_HOST,
# port=settings.REDIS_PORT, db=0)
@api_view(['POST'])
@api_view(['GET', 'POST'])
def manage_items(request, *args, **kwargs): def manage_items(request, *args, **kwargs):
if request.method == 'GET':
# Not supposed to enumerate all items, so return 405
return Response({'msg': 'Method not allowed'}, status=405)
if request.method == 'POST':
# Define a timeout value (in seconds) # Define a timeout value (in seconds)
timeout = 5 timeout = 5
ttl = request.data['ttl'] # Get the list of files and the TTL value from the request data
files = request.FILES.getlist('file')
ttl = request.data.get('ttl')
if not ttl: if not ttl:
return Response({'msg': 'TTL not provided'}, status=400) return Response({'msg': 'TTL not provided'}, status=400)
@ -35,39 +29,39 @@ def manage_items(request, *args, **kwargs):
except ValueError: except ValueError:
return Response({'msg': 'Invalid TTL format'}, status=400) return Response({'msg': 'Invalid TTL format'}, status=400)
# Define a function to save the file in a thread # Define a function to save a single file in a thread
def save_file_to_redis(): def save_file_to_redis(file):
key = uuid.uuid4().hex key = uuid.uuid4().hex
file = request.FILES['file'] # Get the filename
if not file:
return Response({'msg': 'No file provided'}, status=400)
filename = file.name filename = file.name
# Convert file to bytes # Convert file to bytes
file = file.read() file_content = file.read()
# Set with ttl if ttl is provided # Set with the provided TTL
cache.set(key, file, timeout=ttl) cache.set(key, file_content, timeout=ttl)
response = { response = {
'key': key, 'key': key,
'msg': f"{key} successfully set to {filename}: {file}, with a ttl of {ttl} seconds" 'msg': f"{key} successfully set to {filename} with TTL {ttl} seconds"
} }
# Store the response in a shared variable # Append the response to the shared responses list
nonlocal saved_response responses.append(response)
saved_response = response
# Create a shared variable to store the response # Create a list to store the responses for each file
saved_response = None responses = []
# Create a new thread for the file-saving process # Create a thread for each file
file_saving_thread = threading.Thread(target=save_file_to_redis) file_threads = []
for file in files:
file_thread = threading.Thread(target=save_file_to_redis, args=(file,))
file_threads.append(file_thread)
# Start the file-saving thread # Start all file-saving threads
file_saving_thread.start() for file_thread in file_threads:
file_thread.start()
# Use a Timer to add a timeout # Use a Timer to add a timeout
timeout_event = threading.Event() timeout_event = threading.Event()
@ -77,19 +71,17 @@ def manage_items(request, *args, **kwargs):
# Start the timer # Start the timer
timeout_timer.start() timeout_timer.start()
# Wait for the file-saving thread to complete # Wait for all file-saving threads to complete
file_saving_thread.join() for file_thread in file_threads:
file_thread.join()
# Check if the thread completed without a timeout # Check if the threads completed without a timeout
if not timeout_event.is_set(): if not timeout_event.is_set():
if saved_response: return Response(responses, status=201)
return Response(saved_response, status=201)
else:
return Response({'msg': 'File saving failed'}, status=500)
else: else:
return Response({'msg': 'File saving timed out'}, status=500) return Response({'msg': 'File saving timed out'}, status=500)
finally: finally:
# Always cancel the timer to prevent it from firing after the thread completes # Always cancel the timer to prevent it from firing after the threads complete
timeout_timer.cancel() timeout_timer.cancel()