Python:检查IRC连接是否丢失(PING PONG?) [英] Python : Check if IRC connection is lost (PING PONG?)

问题描述

所以我的问题是，如果有PING，并且在一分钟的间隔内没有ping，我如何让我的漫游器监听，它会做出反应，好像连接已丢失.怎么会这样呢?

So my question is, how would i get my bot to listen if there is a PING and if there's no ping in an interval of a minute, it will react as though the connection has been lost. How would one go about doing that?

这是用于注册连接辐射的工作代码(尽管在重新连接时遇到麻烦):

This is the working code for registering the connection fallout (although having trouble with reconnecting):

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys
import socket
import string
import os
import platform
import time

# Variables
HOST = "irc.channel.net"
PORT = 6667
NICK = "Botname"
IDENT = "Botname"
REALNAME = os.getenv('USER')
CHAN = "##ChannelName"
readbuffer = ""

# Our IRC connection
irc = socket.socket()
irc.settimeout(300)
connected = False
def connection(host, port, nick, ident, realname, chan):
    while connected is False:
        try:
            irc.connect((host, port))
            irc.send("NICK %s\r\n" % nick)
            irc.send("USER %s %s bla :%s\r\n" % (ident, host, realname))
            irc.send("JOIN :%s\r\n" % chan)
            # Initial msg to send when bot connects
            irc.send("PRIVMSG %s :%s\r\n" % (chan, "TehBot: "+ nick + " Realname: " + realname + " ."))
            global connected
            connected = True
        except socket.error:
            print "Attempting to connect..."
            time.sleep(5)
            continue
connection(HOST, PORT, NICK, IDENT, REALNAME, CHAN)

while connected:
    try:
        data = irc.recv ( 4096 )
        # If connection is lost
        if len(data) == 0:
            break
        print data
        # If Nick is in use
        if data.find ( "Nickname is already in use" ) != -1:
            NICK = NICK + str(time.time())
            connection(HOST, PORT, NICK, IDENT, REALNAME, CHAN)
        # Ping Pong so we don't get disconnected
        if data[0:4] == "PING":
            irc.send ( "PONG " + data.split() [ 1 ] + "\r\n" )
    except socket.timeout:
        global connected
        connected = False
        print connected
        break
print "Out of loop"
connection(HOST, PORT, NICK, IDENT, REALNAME, CHAN)

推荐答案

last_ping = time.time()
threshold = 5 * 60 # five minutes, make this whatever you want
while connected:
    data = irc.recv ( 4096 )
    # If Nick is in use
    if data.find ( 'Nickname is already in use' ) != -1:
        NICK = NICK + str(time.time())
        Connection()
    # Ping Pong so we don't get disconnected
    if data.find ( 'PING' ) != -1:
        irc.send ( 'PONG ' + data.split() [ 1 ] + '\r\n' )
        last_ping = time.time()
    if (time.time() - last_ping) > threshold:
        break

这将记录每次ping的时间，如果持续时间太长而没有一次，请打破connected循环.您不需要while connected == True:，只需while connected:做同样的事情.

This will record the time each time it gets a ping, and if it goes too long without one, break out of the connected loop. You don't need while connected == True:, just while connected: does the same thing.

此外，考虑使用connection而不是Connection，这是Python约定，仅对类使用大写名称.

Also, consider using connection instead of Connection, it's the Python convention to use capitalized names only for classes.

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