154 lines
4.9 KiB
Python
154 lines
4.9 KiB
Python
import os, sys, asyncio, re, signal
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from firepup650 import console
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from logs import log
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class Globals: ...
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G = Globals()
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G.uniqueClients = 0
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G.linked = []
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port = 65048
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G.msgs = []
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G.remoteID = "firepi"
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G.event = asyncio.Event()
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G.loop = asyncio.get_event_loop()
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G.interruptCount = 0
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# Try to load a message log, if one exists
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try:
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G.msgs = __import__("cache").msgs
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log(f"Got {len(G.msgs)} lines from message cache")
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except ImportError:
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log("No server message cache.", level="WARN")
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except Exception:
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log(
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"Abnormal state! Failed to load cache even though the file exists!",
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level="WARN",
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)
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try:
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for arg in sys.argv:
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if arg.startswith("--port"):
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port = int(arg.lstrip("-port="))
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elif arg.startswith("-p"):
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port = int(arg.lstrip("-p="))
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elif arg in ["-n", "--no-cache"]:
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log("Explicitly erasing cached messages")
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G.msgs = []
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elif arg in ["-?", "-h", "--help"]:
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print("TODO: Help menu soon")
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exit(0)
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except Exception:
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sys.tracebacklimit = 0
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raise ValueError("Invalid arguments. Please refer to -? for usage.") from None
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async def handle_client(reader, writer):
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try:
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global G
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writer.write(b"Pleass identify yourself. Nick limit is 20 chars.\n")
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await writer.drain()
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name = repr((await reader.read(20)).decode("utf8").strip())[1:-1].replace(
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"\\\\", "\\"
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)
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if len(name) > 20:
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name = name[
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:19
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] # Really this is only possible if someone passes raw unicode as a nick, but let's clean it up anyways.
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try:
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await asyncio.wait_for(
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reader.read(), 0.01
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) # Silently consume the excess useename data
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except asyncio.TimeoutError:
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pass
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if not name:
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writer.write(b"Nice try. Actually set a nick.\n")
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await writer.drain()
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writer.close()
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await writer.wait_closed()
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return
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if name in G.linked:
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writer.write(f"Nick ({name}) in use\n".encode("utf8"))
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await writer.drain()
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writer.close()
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await writer.wait_closed()
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return
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G.linked.extend([name])
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msgIndex = 0
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G.uniqueClients += 1
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G.msgs.extend([log(f"{name} has connected to the server.")])
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while 1:
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try:
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buffer = await asyncio.wait_for(reader.read(970), 0.1)
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request = repr(buffer.decode("utf8").strip())[1:-1].replace(
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"\\\\", "\\"
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)
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response = None
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if request.startswith("/mes "):
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response = log(f"* {name}'s {request[4:]}")
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elif request.startswith("/me "):
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response = log(f"* {name} {request[3:]}")
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elif request.startswith("/h"):
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writer.write(b"TODO: Command listing\n")
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await writer.drain()
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elif request.startswith("/quit"):
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break
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elif request:
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response = log(f" {name}: {request}")
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if response:
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G.msgs.extend([response])
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except asyncio.TimeoutError:
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pass
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if msgIndex < len(G.msgs):
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writer.writelines(G.msgs[msgIndex:])
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msgIndex = len(G.msgs)
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await writer.drain()
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writer.close()
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await writer.wait_closed()
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G.msgs.extend([log(f"{name} has disconnected from the server.")])
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G.linked.remove(name)
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except ConnectionResetError:
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G.msgs.extend([log(f"{name} has disconnected from the server.")])
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G.linked.remove(name)
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async def run_server(port):
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global G
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server = await asyncio.start_server(handle_client, "0.0.0.0", port)
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log(f"Listening on port {port}...")
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G.msgs.extend([log("Server startup")])
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crash = False
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try:
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log("Waiting on the Interrupt Event to be set...")
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await G.event.wait()
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log("Interrupt Event has been set, shutting down normally")
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except Exception:
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crash = True
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G.msgs.extend([log("Server crash", level="FATAL")[1:]])
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log("Shutting down from Exception")
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# TODO: Add format_exc here
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finally:
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if not crash:
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G.msgs.extend([log("Server shutdown")])
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log("Kicking all clients as we go down")
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server.close()
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# server.abort_clients()
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with open("cache.py", "w") as cache:
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cache.write(f"msgs = {G.msgs}\n")
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log("Saved logs, exiting now.")
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class ServerInterruptException(KeyboardInterrupt): ...
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def interruptCatch(s, f):
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global G
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print()
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G.loop.call_soon_threadsafe(G.event.set)
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G.interruptCount += 1
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sys.tracebacklimit = 0
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raise ServerInterruptException from None
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signal.signal(signal.SIGINT, interruptCatch)
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asyncio.run(run_server(port))
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