通过 SSH 进行声音通知

Question 1

我不喜欢 libnotify，所以我用 Python 创建了一个 UDP 服务器，并为 irssi 创建了一个客户端应用程序。请注意，此答案适用于修订 1，没有文字通知。

客户

此版本会响应发送给您的各种消息。如果您希望收到任何渠道的消息通知，请删除行首#。#'message public'实施了一些速率限制，通知之间至少会有 1.3 秒的延迟。

##
## Put me in ~/.irssi/scripts, and then execute the following in irssi:
##
##       /load perl
##       /script load notifyudp
##

use strict;
use Irssi;
use IO::Socket;
use vars qw($VERSION %IRSSI);
use Time::HiRes qw(time);

$VERSION = "0.3.20140930";
%IRSSI = (
    authors     => 'Lekensteyn',
    contact     => '[email protected]',
    name        => 'notifyudp.pl',
    description => 'Send a UDP signal to a remote machine',
    license     => 'GPLv3+'
);

Irssi::settings_add_str('notifyudp', 'notifyudp_ip_addr', '');
# port 0 = disabled
Irssi::settings_add_int('notifyudp', 'notifyudp_port', 0);
Irssi::settings_add_bool('notifyudp', 'notifyudp_auto_start', 0);

my $sock;

sub notify_load {
    if ($sock) {
        Irssi::print('NotifyUDP: Already connected.');
        return;
    }
    my $ip = Irssi::settings_get_str('notifyudp_ip_addr');
    my $port = Irssi::settings_get_int('notifyudp_port');
    if (!$port || !$ip) {
        Irssi::print('NotifyUDP: No port or host set, /set notifyudp for more information..');
        return;
    }
    if ($port < 1024 || $port > 65535) {
        Irssi::print('NotifyUDP: Invalid port, must be 1024 <= port <= 65535, resetting and ignoring.');
        Irssi::settings_set_int('notifyudp_port', 0);
        return;
    }
    $sock = new IO::Socket::INET(
        PeerAddr => $ip,
        PeerPort => $port,
        Proto => 'udp',
        Timeout => 1
    );
    Irssi::print("NotifyUDP: IP $ip will be notified on port $port.");
}

my $last_time = 0;
sub notify {
    if ($sock) {
        my $now = time;
        my $notify_delay = 1.3;
        if (abs($now - $last_time) > $notify_delay) {
            $last_time = $now;
            $sock->send("M");
        }
    }
}
sub notify_if_hilighted {
    my ($dest, $text, $stripped) = @_;
    if ($dest->{level} & MSGLEVEL_HILIGHT) {
        notify();
    }
}

sub notify_stop {
    if ($sock) {
        Irssi::print("NotifyUDP: Stopping.");
        $sock->send("S");
        $sock = undef;
    } else {
        Irssi::print("NotifyUDP: not active.");
    }
}

sub cmd_notifyudp {
    my ($cmd) = @_;
    if ($cmd eq 'start') {
        notify_load();
    } elsif ($cmd eq 'stop') {
        notify_stop();
    } elsif ($cmd eq 'ping') {
        notify();
    } else {
        Irssi::print('NotifyUDP: Usage: /notifyudp [start|stop|ping]');
    }
}

Irssi::command_bind('notifyudp', 'cmd_notifyudp');

my @signals = (
# Uncomment the following to get notifs for every (channel) message
#'message public',
'message private',
'dcc request',

'message irc notice', # NickServ responses and such

# whenever the server dies
'server connected',
'server connect failed',
'server disconnected',

'message invite',
'message topic',
'message dcc',
'ctcp msg',
'ctcp reply',
);
Irssi::signal_add('print text', 'notify_if_hilighted');
foreach (@signals) {
    Irssi::signal_add($_, 'notify');
}

if (Irssi::settings_get_bool('notifyudp_auto_start')) {
    Irssi::print('NotifyUDP: automatic connection with the sound server is enabled.');
    notify_load();
} else {
    Irssi::print('NotifyUDP: automatic connection with the sound server is disabled.');
}

服务器

启动后，它会监听所有地址、端口 3533。如果收到 UDP 数据包“M”，它会/usr/share/sounds/KDE-Im-Irc-Event.ogg使用paplay("PulseAudio play") 播放。收到后S，它会退出服务器。由于它是开源的，您可以随意删除它。

#!/usr/bin/env python
# udpsoundserver.py

"""Listen on a UDP port and play a sound when 'M' is received

Starts the server listening on UDP port PORT (3533 by default) on address HOST
(by default all addresses). Valid commands are:
M - play Music
S - Stop the server
"""
try:
    import socketserver
except ImportError:
    import SocketServer as socketserver
from os import system,getpid
import threading
import sys

# leave it empty to listen on all addresses
HOST = ""
PORT = 3533


class UDPSvr(socketserver.BaseRequestHandler):
    def handle(self):
        data = self.request[0]
        if sys.version >= '3':
            data = str(data, "ISO-8859-1")
        data = data.strip()
        if data == "M":
            ding.dong()
        elif data == "S":
            ding.die()

class Worker(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)
        self.daemon = True
    def run(self):
        server.serve_forever();

class Handler(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)
        self.daemon = True
        self.play = False
        self.must_die = False

    def run(self):
        self.event = threading.Event()
        while True:
            self.event.wait(1.)
            if self.event.isSet():
                if self.play:
                    print("Playing...")
                    system("paplay /usr/share/sounds/KDE-Im-Irc-Event.ogg")
                # no else if to allow shutdown signals 
                if self.must_die:
                    print("Shutting down...")
                    server.shutdown()
                    break
                self.play = False
                self.event.clear()

    def dong(self):
        self.play = True
        self.event.set()

    def die(self):
        self.must_die = True
        self.event.set()

def ca(num, x):
    print("Caught SIGINT, shutting down...")
    ding.die()

import signal
if __name__ == "__main__":
    print("My PID is: " + str(getpid()))

    if len(sys.argv) > 1:
        HOST = sys.argv[1]
    if len(sys.argv) > 2:
        PORT = int(sys.argv[2])

    print("Host: " + HOST)
    print("Port: " + str(PORT))
    server = socketserver.UDPServer((HOST, PORT), UDPSvr)

    ding = Handler()
    signal.signal(signal.SIGINT, ca)
    worker = Worker()
    ding.start()
    worker.start()
    # might not be the cleanest, but it allows Ctrl + C
    while ding.isAlive():
        ding.join(3600)

启动远程服务器的顺序变为：

screen -dm path/to/udpsoundserver.py
ssh -R 5355:localhost:5355

登录后，我运行：

screen -t irssi irssi

如果您需要稍后重新连接：

screen -r irssi

启动后irssi需要设置主机和端口：

/set notifyudp_ip_addr 127.0.0.1
/set notifyudp_port 5355

要使其在启动时自动连接：

/set notifyudp_auto_start 1

第一次，您需要手动启动 Notify UDP，因为它尚未自动启动：

/notifyudp start

为了测试通知：

/notifyudp ping

去做：

使声音服务器在断开连接时停止
允许跳过频道

Answer