add proxy support

.experiment.py

@@ -1,56 +1,30 @@
 import asyncio
-from urllib.parse import urlparse, parse_qsl
 from asyncio import Event, FIRST_COMPLETED
 import signal
-import typing
-from logging import getLogger, DEBUG
 
 
 stop = Event()
 loop = asyncio.get_event_loop()
-lg = getLogger(__name__)
-lg.setLevel(DEBUG)
 
 
-def make_handler(get_ans: typing.Callable[[dict], str]):
-
-    async def handler(
-            reader: asyncio.StreamReader,
-            writer: asyncio.StreamWriter,
-    ):
-        data = await reader.read(200)
-        print(data)
-        message = data.decode()
-        addr = writer.get_extra_info('peername')
-        lg.debug('process msg "%s" from %s', message, addr)
-        try:
-            (_, p, *_) = message.split(' ')
-            p = dict(parse_qsl(urlparse(p).query))
-            lg.debug('query %s', p)
-            ans = get_ans(p)
-            ans = f'''HTTP/1.1 200 OK\nContent-Length: {len(ans)}\n\n{ans}'''.encode()  # \nContent-Length: 6
-            ans = b'HTTP/1.1 200 OK\r\n\r\n7:2'
-            print(ans)
-        except Exception as exc:
-            print(exc)
-            lg.exception('process msg "%s" from %s', message, addr)
-            ans = '''HTTP/1.1 500\n\n'''.encode()
-        writer.write(ans)
-        await writer.drain()
-        # writer.transport.close()
-        writer.close()
-        await writer.wait_closed()
-    return handler
+async def handler(
+        reader: asyncio.StreamReader,
+        writer: asyncio.StreamWriter,
+):
+    await reader.read(100)
+    ans = b'HTTP/1.1 200 OK\r\nContent-Length:1\r\n\r\nd'
+    writer.write(ans)
+    await writer.drain()
+    writer.close()
+    await writer.wait_closed()
 
 
 async def serve():
     server = await asyncio.start_server(
-        make_handler(lambda x: '7:2'),
+        handler,
         host='0.0.0.0',
-        port=1111,
+        port=8888,
     )
-    addr = server.sockets[0].getsockname()
-    print(f'Serving on {addr}')
     async with server:
         await asyncio.wait((server.serve_forever(), stop.wait()), return_when=FIRST_COMPLETED)
 
@@ -58,4 +32,4 @@ if __name__ == '__main__':
     loop.add_signal_handler(
         signal.SIGINT, stop.set
     )
-    loop.run_until_complete(serve())
+    loop.run_until_complete(serve())