mirror of
https://github.com/Eugeny/tabby-web.git
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101 lines
3.3 KiB
Python
101 lines
3.3 KiB
Python
import asyncio
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import json
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import os
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import secrets
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import ssl
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import websockets
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from django.conf import settings
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from urllib.parse import quote
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from .models import Gateway
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class GatewayConnection:
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_ssl_context: ssl.SSLContext = None
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def __init__(self, host: str, port: int):
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if settings.CONNECTION_GATEWAY_AUTH_KEY and not GatewayConnection._ssl_context:
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ctx = ssl.create_default_context(purpose=ssl.Purpose.CLIENT_AUTH)
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ctx.load_cert_chain(
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os.path.realpath(settings.CONNECTION_GATEWAY_AUTH_CERTIFICATE),
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os.path.realpath(settings.CONNECTION_GATEWAY_AUTH_KEY),
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)
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if settings.CONNECTION_GATEWAY_AUTH_CA:
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ctx.load_verify_locations(
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cafile=os.path.realpath(settings.CONNECTION_GATEWAY_AUTH_CA),
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)
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ctx.verify_mode = ssl.CERT_REQUIRED
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GatewayConnection._ssl_context = ctx
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proto = "wss" if GatewayConnection._ssl_context else "ws"
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self.url = f"{proto}://localhost:9000/connect/{quote(host)}:{quote(str(port))}"
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async def connect(self):
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self.context = websockets.connect(self.url, ssl=GatewayConnection._ssl_context)
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try:
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self.socket = await self.context.__aenter__()
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except OSError:
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raise ConnectionError()
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async def send(self, data):
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await self.socket.send(data)
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def recv(self, timeout=None):
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return asyncio.wait_for(self.socket.recv(), timeout)
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async def close(self):
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await self.socket.close()
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await self.context.__aexit__(None, None, None)
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class GatewayAdminConnection:
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_ssl_context: ssl.SSLContext = None
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def __init__(self, gateway: Gateway):
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if not settings.CONNECTION_GATEWAY_AUTH_KEY:
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raise RuntimeError(
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"CONNECTION_GATEWAY_AUTH_KEY is required to manage connection gateways"
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)
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if not GatewayAdminConnection._ssl_context:
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ctx = ssl.create_default_context(purpose=ssl.Purpose.CLIENT_AUTH)
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ctx.load_cert_chain(
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os.path.realpath(settings.CONNECTION_GATEWAY_AUTH_CERTIFICATE),
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os.path.realpath(settings.CONNECTION_GATEWAY_AUTH_KEY),
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)
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if settings.CONNECTION_GATEWAY_AUTH_CA:
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ctx.load_verify_locations(
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cafile=os.path.realpath(settings.CONNECTION_GATEWAY_AUTH_CA),
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)
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ctx.verify_mode = ssl.CERT_REQUIRED
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GatewayAdminConnection._ssl_context = ctx
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self.url = f"wss://{gateway.host}:{gateway.admin_port}"
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async def connect(self):
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self.context = websockets.connect(
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self.url, ssl=GatewayAdminConnection._ssl_context
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)
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try:
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self.socket = await self.context.__aenter__()
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except OSError:
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raise ConnectionError()
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async def authorize_client(self) -> str:
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token = secrets.token_hex(32)
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await self.send(
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json.dumps(
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{
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"_": "authorize-client",
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"token": token,
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}
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)
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)
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return token
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async def send(self, data):
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await self.socket.send(data)
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async def close(self):
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await self.socket.close()
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await self.context.__aexit__(None, None, None)
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