Created
April 8, 2023 07:10
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Transport protocol with SSL in asyncio
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| openssl genrsa -out root-ca.key 2048 | |
| openssl req -x509 -new -nodes -key root-ca.key -days 365 -out root-ca.crt | |
| python3 ssl_web_server.py | |
| echo "then open browser: https://localhost:4433" |
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| Transport and Protocol with SSL | |
| import asyncio | |
| import ssl | |
| def make_header(): | |
| head = b"HTTP/1.1 200 OK\r\n" | |
| head += b"Content-Type: text/html\r\n" | |
| head += b"\r\n" | |
| return head | |
| def make_body(): | |
| resp = b"<html>" | |
| resp += b"<h1>Hello SSL</h1>" | |
| resp += b"</html>" | |
| return resp | |
| sslctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23) | |
| sslctx.load_cert_chain( | |
| certfile="./root-ca.crt", keyfile="./root-ca.key" | |
| ) | |
| class Service(asyncio.Protocol): | |
| def connection_made(self, tr): | |
| self.tr = tr | |
| self.total = 0 | |
| def data_received(self, data): | |
| if data: | |
| resp = make_header() | |
| resp += make_body() | |
| self.tr.write(resp) | |
| self.tr.close() | |
| async def start(): | |
| server = await loop.create_server( | |
| Service, "localhost", 4433, ssl=sslctx | |
| ) | |
| await server.wait_closed() | |
| try: | |
| loop = asyncio.get_event_loop() | |
| loop.run_until_complete(start()) | |
| finally: | |
| loop.close() |
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