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PyLink/coremods/service_support.py
James Lu 377df413ed Irc: s/isServiceBot/getServiceBot/g (#355)
This function is renamed to better reflect its return value (ServiceBot object instead of boolean True).
2016-11-09 19:09:59 -08:00

132 lines
4.7 KiB
Python

"""
service_support.py - Implements handlers for the PyLink ServiceBot API.
"""
from pylinkirc import utils, world, conf
from pylinkirc.log import log
def spawn_service(irc, source, command, args):
"""Handles new service bot introductions."""
if not irc.connected.is_set():
return
# Service name
name = args['name']
# Get the ServiceBot object.
sbot = world.services[name]
# Look up the nick or ident in the following order:
# 1) Network specific nick/ident settings for this service (servers::irc.name::servicename_nick)
# 2) Global settings for this service (servicename::nick)
# 3) The preferred nick/ident combination defined by the plugin (sbot.nick / sbot.ident)
# 4) The literal service name.
# settings, and then falling back to the literal service name.
nick = irc.serverdata.get("%s_nick" % name) or conf.conf.get(name, {}).get('nick') or sbot.nick or name
ident = irc.serverdata.get("%s_ident" % name) or conf.conf.get(name, {}).get('ident') or sbot.ident or name
if name != 'pylink' and irc.protoname == 'clientbot':
# Prefix service bots spawned on Clientbot to prevent possible nick collisions.
nick = 'PyLinkService@' + nick
# TODO: make this configurable?
host = irc.hostname()
# Spawning service clients with these umodes where supported. servprotect usage is a
# configuration option.
preferred_modes = ['oper', 'hideoper', 'hidechans', 'invisible', 'bot']
modes = []
if conf.conf['bot'].get('protect_services'):
preferred_modes.append('servprotect')
for mode in preferred_modes:
mode = irc.umodes.get(mode)
if mode:
modes.append((mode, None))
# Track the service's UIDs on each network.
log.debug('(%s) Using nick %s for service %s', irc.name, nick, name)
userobj = irc.proto.spawnClient(nick, ident, host, modes=modes, opertype="PyLink Service",
manipulatable=sbot.manipulatable)
# Store the service name in the IrcUser object for easier access.
userobj.service = name
sbot.uids[irc.name] = u = userobj.uid
# Special case: if this is the main PyLink client being spawned,
# assign this as irc.pseudoclient.
if name == 'pylink':
log.debug('(%s) irc.pseudoclient set to UID %s', irc.name, u)
irc.pseudoclient = userobj
# TODO: channels should be tracked in a central database, not hardcoded
# in conf.
channels = set(irc.serverdata.get('channels', [])) | sbot.extra_channels.get(irc.name, set())
sbot.join(irc, channels)
utils.add_hook(spawn_service, 'PYLINK_NEW_SERVICE')
def handle_disconnect(irc, source, command, args):
"""Handles network disconnections."""
for name, sbot in world.services.items():
try:
del sbot.uids[irc.name]
log.debug("coremods.service_support: removing uids[%s] from service bot %s", irc.name, sbot.name)
except KeyError:
continue
utils.add_hook(handle_disconnect, 'PYLINK_DISCONNECT')
def handle_endburst(irc, source, command, args):
"""Handles network bursts."""
if source == irc.uplink:
log.debug('(%s): spawning service bots now.', irc.name)
# We just connected. Burst all our registered services.
for name, sbot in world.services.items():
spawn_service(irc, source, command, {'name': name})
utils.add_hook(handle_endburst, 'ENDBURST')
def handle_kill(irc, source, command, args):
"""Handle KILLs to PyLink service bots, respawning them as needed."""
target = args['target']
sbot = irc.getServiceBot(target)
if sbot:
spawn_service(irc, source, command, {'name': sbot.name})
return
utils.add_hook(handle_kill, 'KILL')
def handle_kick(irc, source, command, args):
"""Handle KICKs to the PyLink service bots, rejoining channels as needed."""
kicked = args['target']
channel = args['channel']
sbot = irc.getServiceBot(kicked)
if sbot:
sbot.join(irc, channel)
utils.add_hook(handle_kick, 'KICK')
def handle_commands(irc, source, command, args):
"""Handle commands sent to the PyLink service bots (PRIVMSG)."""
target = args['target']
text = args['text']
sbot = irc.getServiceBot(target)
if sbot:
sbot.call_cmd(irc, source, text)
utils.add_hook(handle_commands, 'PRIVMSG')
# Register the main PyLink service. All command definitions MUST go after this!
mynick = conf.conf['bot'].get("nick", "PyLink")
myident = conf.conf['bot'].get("ident", "pylink")
# TODO: be more specific, and possibly allow plugins to modify this to mention
# their features?
mydesc = "\x02%s\x02 provides extended network services for IRC." % mynick
utils.registerService('pylink', nick=mynick, ident=myident, desc=mydesc, manipulatable=True)