Script: fileaway.py

Set away status based on presence of a file.
Author: javagamer — Version: 1.0.3 — License: GPL3
For WeeChat ≥ 0.3.0.
Tags: file, away, py2, py3
Added: 2011-04-25 — Updated: 2019-12-21

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# -*- coding: utf-8 -*-
#
# Copyright (c) 2011 by Richard A Hofer (javagamer) <atomic.quark@gmail.com>
#
# fileaway.py - A simple autoaway script for Weechat which monitors a file,
# allowing it to easily connect to external things (such as xscreensaver)
#
# The code from screen_away.py and auto_away.py were heavily consulted in the
# writing of this script
# ---------------------------------------------------------------------------
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# -------------------------------------------------------------------------
# Purpose -
# I wrote this auto-away script so that it could easily be hooked into other
# things to deterine whether or not I was there rather than just watching for
# keyboard input in Weechat.  In my case I wanted to be able to have weechat in
# a tmux session on a server, yet still go away when I lock the screen on my
# desktop.
#
# Below is a sample shellscript which watches xscreensaver and sets away when
# it is locked, and available when unlocked
# While this only one way this script can be used, this is why I wrote it
#
# #!/bin/sh
#
# # Read xscreensaver's state
# xscreensaver-command -watch|
# while read STATUS; do
#   case "$STATUS" in
#     LOCK*)
#       rm ~/.available
#       ;;
#     UNBLANK*)
#       touch ~/.available
#       ;;
#   esac
# done
#
# Alternative for xset:
#
# #!/bin/bash
#
# xset -display ":0" q|grep "Monitor"|awk ' { print $3 $4 } '|
# while read MONITOR; do
#    case "$MONITOR" in
#      Off)
#        rm ~/.available
#        ;;
#      On)
#        touch ~/.available
#        ;;
#    esac
# done
# ------------------------------------------------------------------------
# Changelog:
# Version 1.0 released - March 27, 2011
#  -Initial release
# Version 1.0.1 released - March 31, 2011
#  -Handles improper commands
# Version 1.0.2 release - Jun 15, 2011
#  -Added alternative for xset users (credit: sherpa9 at irc.freenode.net)
# Version 1.0.3 release - Dec 19, 2019
#  -Adapt for python3

from __future__ import print_function

try:
  import weechat as w
  import os.path

except Exception:
  print("This script must be run under WeeChat.")
  print("Get WeeChat now at: http://www.wwchat.org/")
  quit()

SCRIPT_NAME     = "fileaway"
SCRIPT_AUTHOR   = "javagamer"
SCRIPT_VERSION  = "1.0.3"
SCRIPT_LICENSE  = "GPL3"
SCRIPT_DESC     = "Set away status based on presence of a file"
debug           = 0
TIMER           = None

settings = {
  'filepath':   './.available',
  'awaymessage':'Away',
  'interval':   '20', # How often to check for inactivity (in seconds)
  'status':     '0',
  'away':       '0',
}

def set_back(overridable_messages):
  '''Removes away status for servers where one of the overridable_messages is set'''
  if(w.config_get_plugin('away') == '0'): return # No need to come back again
  serverlist = w.infolist_get('irc_server','','')
  if serverlist:
    buffers = []
    while w.infolist_next(serverlist):
      if w.infolist_string(serverlist, 'away_message') in overridable_messages:
        ptr = w.infolist_pointer(serverlist, 'buffer')
        if ptr:
          buffers.append(ptr)
    w.infolist_free(serverlist)
    for buffer in buffers:
      w.command(buffer, "/away")
  w.config_set_plugin('away', '0')

def set_away(message, overridable_messages=[]):
  '''Sets away status, but respectfully (so it doesn't change already set statuses'''
  if(w.config_get_plugin('away') == '1'): return # No need to go away again (this prevents some repeated messages)
  if(debug): w.prnt('', "Setting away to %s" % message)
  serverlist = w.infolist_get('irc_server','','')
  if serverlist:
    buffers = []
    while w.infolist_next(serverlist):
      if w.infolist_integer(serverlist, 'is_away') == 0:
        if(debug): w.prnt('', "Not away on %s" % w.infolist_string(serverlist, 'name'))
        ptr = w.infolist_pointer(serverlist, 'buffer')
        if ptr:
          buffers.append(ptr)
      elif w.infolist_string(serverlist, 'away_message') in overridable_messages:
        if(debug): w.prnt('', "%s is in %s" % (w.infolist_string(serverlist, 'away_message'), repr(overridable_messages)))
        buffers.append(w.infolist_pointer(serverlist, 'buffer'))
    w.infolist_free(serverlist)
    if(debug): w.prnt('', repr(buffers))
    for buffer in buffers:
      w.command(buffer, "/away %s" % message)
  w.config_set_plugin('away', '1')

def fileaway_cb(data, buffer, args):
  response = {  'enable'  : lambda args: w.config_set_plugin('status', '1') and check_timer(),
                'disable' : lambda args: w.config_set_plugin('status', '0') and check_timer(),
                'check'   : check,
                'file'    : lambda filepath: w.config_set_plugin('filepath', filepath),
                'interval': lambda interval: w.config_set_plugin('interval', interval),
                'msg'     : lambda status: w.config_set_plugin('awaymessage', status),
            }
  if args:
    words = args.strip().partition(' ')
    if words[0] in response:
      response[words[0]](words[2])
    else:
      w.prnt('', "Fileaway error: %s not a recognized command.  Try /help fileaway" % words[0])
  w.prnt('', "fileaway: enabled: %s interval: %s away message: \"%s\" filepath: %s" %
    (w.config_get_plugin('status'), w.config_get_plugin('interval'),
    w.config_get_plugin('awaymessage'), w.config_get_plugin('filepath')))
  return w.WEECHAT_RC_OK

def auto_check(data, remaining_calls):
  '''Callback from timer'''
  check(0)
  return w.WEECHAT_RC_OK

def check(args):
  '''Check for existance of file and set away if it isn't there'''
  if os.path.isfile(w.config_get_plugin('filepath')):
    set_back([w.config_get_plugin('awaymessage')])
  else:
    set_away(w.config_get_plugin('awaymessage'), [])

def check_timer():
  '''Sets or unsets the timer based on whether or not the plugin is enabled'''
  global TIMER
  if TIMER:
      w.unhook(TIMER)
  if w.config_get_plugin('status') == '1':
    TIMER = w.hook_timer(int(w.config_get_plugin('interval')) * 1000, 0, 0, "auto_check", "")
    w.prnt('', "fileaway timer is running.")

if __name__ == "__main__":
  if w.register(SCRIPT_NAME, SCRIPT_AUTHOR, SCRIPT_VERSION, SCRIPT_LICENSE, SCRIPT_DESC, "", ""):
    for option, default_value in settings.items():
      if not w.config_is_set_plugin(option):
        w.config_set_plugin(option, default_value)

    w.hook_command("fileaway",
    "Set away status based on presense or absense of a file.",
    "check, msg [status], interval [time], file [filepath], or enable|disable",
    "check - manually checks for file rather than waiting for interval.\n"
    "msg [status] - sets the away message"
    "interval [time] - sets the interval to check for the file.\n"
    "file [filepath] - sets the file to be watched.\n"
    "enable|disable - enables or disables plugin.\n",
    "check"
    " || msg"
    " || interval"
    " || file %(filename)"
    " || enable"
    " || disable",
    "fileaway_cb", "")
    check_timer()
    if(w.config_get_plugin('status') == '0'):
      w.prnt('', "fileaway is currently disabled.  Type /fileaway enable to enable it.")
    else:
      w.prnt('', "fileaway is currently enabled.  Type /fileaway disable to disable it.")