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Clarify intentional outages from server linking related things

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Firepup Sixfifty 2024-07-17 02:51:04 +00:00
parent 1714010182
commit 7c0c4b0875
Signed by: Firepup650
SSH key fingerprint: SHA256:U0Zp8EhEe3CMqFSrC79CqatzaEiL4sjta80/RSX2XrY
1 changed files with 173 additions and 156 deletions
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31
server.py
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@ -1,17 +1,19 @@
#! /usr/bin/python3
#!/usr/bin/python3
import os, sys, asyncio, re, signal
from platform import uname
from traceback import format_exc
from logs import log
class LinksDownException(Exception): ...
class LinkDownError(Exception): ...
class FailedLinkError(Exception): ...
class Globals: ...
# The two below lines are a hacky fix for python 3.10 asyncio
TimeoutErrors = (TimeoutError, asyncio.exceptions.TimeoutError)
DisconnectErrors = (ConnectionResetError, BrokenPipeError, IndexError, *TimeoutErrors)
G = Globals()
@ -401,6 +403,7 @@ Please note that this is not network level statistics.\n""".encode(
async def connectServer(hostname: str, port: int):
global G
try:
reader, writer = await asyncio.open_connection(hostname, port)
await reader.read(1024)
writer.write(f"S2S-{G.remoteID}\n".encode("utf8"))
@ -474,7 +477,9 @@ async def connectServer(hostname: str, port: int):
case "-":
cName = buffer[2:]
if G.clientsConnected.get(cName.lower(), None) == rID:
G.msgs.append(log(f"{cName} has disconnected from {rID}"))
G.msgs.append(
log(f"{cName} has disconnected from {rID}")
)
del G.servers[rID][cName.lower()]
del G.clientsConnected[cName.lower()]
G.S2SLogs.append(("-", cName, rID))
@ -515,7 +520,10 @@ async def connectServer(hostname: str, port: int):
"utf8"
)
)
log(f"Recieved invalid message ({buffer}) from {sName}", "WARN")
log(
f"Recieved invalid message ({buffer}) from {sName}",
"WARN",
)
await writer.drain()
except TimeoutErrors:
pass
@ -544,7 +552,7 @@ async def connectServer(hostname: str, port: int):
await writer.drain()
msgInd += 1
if G.cwlgd:
raise LinksDownException
raise LinkDownError
await writer.drain()
writer.close()
await writer.wait_closed()
@ -555,7 +563,7 @@ async def connectServer(hostname: str, port: int):
G.msgs.append(log(f"{rID} has de-linked from the network"))
except DisconnectErrors:
if G.cwlgd:
raise LinksDownException
raise LinkDownError
for cName in G.servers[rID]:
G.msgs.append(log(f"{cName}'s server is going down"))
try:
@ -564,6 +572,10 @@ async def connectServer(hostname: str, port: int):
pass
del G.servers[rID]
G.msgs.append(log(f"{rID} has de-linked from the network"))
except OSError as E:
log("OSError: " + str(E), "ERROR")
if G.cwlgd:
raise FailedLinkError
async def runServer(address: str, port: int):
@ -578,6 +590,11 @@ async def runServer(address: str, port: int):
try:
links.append(G.event.wait())
await asyncio.gather(*links)
except LinkDownError:
G.msgs.append(log("Lost a server link, going down", "FATAL")[1:])
crash = True
except FailedLinkError:
G.msgs.append(log("Failed to establish a server link, going down", "FATAL")[1:])
except Exception:
crash = True
G.msgs.append(log("Server crash", "FATAL")[1:])