Update main.py
Browse files
main.py
CHANGED
@@ -1,52 +1,87 @@
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from flask import Flask, request,
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import random
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import string
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import threading
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app = Flask(__name__)
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def generate_id():
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return ''.join(random.choices(string.ascii_letters + string.digits, k=8))
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@app.route('/
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def
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with
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'offer': offer,
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'answer': None
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}
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return
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@app.route('/
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def
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with
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if not
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return
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return jsonify({'error': 'Invalid ID'}), 404
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if __name__ == '__main__':
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app.run(host='0.0.0.0', port=5000, threaded=True)
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from flask import Flask, request, Response
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import random
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import string
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from collections import deque
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import threading
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import time
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app = Flask(__name__)
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transfers = {}
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transfer_lock = threading.Lock()
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BUFFER_SIZE = 5 # Максимальное количество хранимых чанков
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class TransferSession:
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def __init__(self, filename):
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self.filename = filename
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self.buffer = deque(maxlen=BUFFER_SIZE)
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self.completed = False
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self.event = threading.Event()
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self.last_activity = time.time()
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def generate_id():
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return ''.join(random.choices(string.ascii_letters + string.digits, k=8))
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@app.route('/start_upload', methods=['POST'])
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def start_upload():
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filename = request.json.get('filename', 'file.bin')
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transfer_id = generate_id()
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with transfer_lock:
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transfers[transfer_id] = TransferSession(filename)
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return {'transfer_id': transfer_id}
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@app.route('/upload/<transfer_id>', methods=['POST'])
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def upload_chunk(transfer_id):
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with transfer_lock:
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session = transfers.get(transfer_id)
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if not session:
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return {'error': 'Invalid transfer ID'}, 404
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chunk = request.data
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session.buffer.append(chunk)
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session.last_activity = time.time()
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session.event.set()
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session.event.clear()
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if request.headers.get('X-Transfer-Complete') == 'true':
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session.completed = True
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return {'status': 'chunk accepted'}
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@app.route('/download/<transfer_id>')
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def download_chunks(transfer_id):
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def generate():
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with transfer_lock:
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session = transfers.get(transfer_id)
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if not session:
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yield b'Transfer not found'
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return
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while True:
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while session.buffer:
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chunk = session.buffer.popleft()
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yield chunk
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if session.completed:
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break
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session.event.wait(timeout=30)
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if time.time() - session.last_activity > 60:
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break
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# Очистка через минуту после завершения
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time.sleep(60)
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with transfer_lock:
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if transfer_id in transfers:
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del transfers[transfer_id]
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return Response(
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generate(),
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mimetype='application/octet-stream',
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headers={'Content-Disposition': f'attachment; filename="{session.filename}"'}
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)
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if __name__ == '__main__':
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app.run(host='0.0.0.0', port=5000, threaded=True)
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