mirror of
https://github.com/jlu5/PyLink.git
synced 2024-11-01 01:09:22 +01:00
relay: sort code and document most internal functions
This commit is contained in:
James Lu
parent
6476aefb5f
commit
75de9c6be6
771
plugins/relay.py
771
plugins/relay.py
@ -26,18 +26,33 @@ spawnlocks = defaultdict(threading.RLock)
|
||||
savecache = ExpiringDict(max_len=5, max_age_seconds=10)
|
||||
killcache = ExpiringDict(max_len=5, max_age_seconds=10)
|
||||
|
||||
def relayWhoisHandler(irc, target):
|
||||
user = irc.users[target]
|
||||
orig = getLocalUser(irc, target)
|
||||
if orig:
|
||||
network, remoteuid = orig
|
||||
remotenick = world.networkobjects[network].users[remoteuid].nick
|
||||
return [320, "%s :is a remote user connected via PyLink Relay. Home "
|
||||
"network: %s; Home nick: %s" % (user.nick, network,
|
||||
remotenick)]
|
||||
world.whois_handlers.append(relayWhoisHandler)
|
||||
### INTERNAL FUNCTIONS
|
||||
|
||||
def initializeAll(irc):
|
||||
"""Initializes all relay channels for the given IRC object."""
|
||||
log.debug('(%s) initializeAll: waiting for world.started', irc.name)
|
||||
world.started.wait()
|
||||
for chanpair, entrydata in db.items():
|
||||
network, channel = chanpair
|
||||
initializeChannel(irc, channel)
|
||||
for link in entrydata['links']:
|
||||
network, channel = link
|
||||
initializeChannel(irc, channel)
|
||||
|
||||
def main():
|
||||
"""Main function, called during plugin loading at start."""
|
||||
loadDB()
|
||||
world.schedulers['relaydb'] = scheduler = sched.scheduler()
|
||||
scheduler.enter(30, 1, exportDB, argument=(True,))
|
||||
# Thread this because exportDB() queues itself as part of its
|
||||
# execution, in order to get a repeating loop.
|
||||
thread = threading.Thread(target=scheduler.run)
|
||||
thread.daemon = True
|
||||
thread.start()
|
||||
|
||||
def normalizeNick(irc, netname, nick, separator=None, uid=''):
|
||||
"""Creates a normalized nickname for the given nick suitable for
|
||||
introduction to a remote network (as a relay client)."""
|
||||
separator = separator or irc.serverdata.get('separator') or "/"
|
||||
log.debug('(%s) normalizeNick: using %r as separator.', irc.name, separator)
|
||||
orig_nick = nick
|
||||
@ -87,6 +102,7 @@ def normalizeNick(irc, netname, nick, separator=None, uid=''):
|
||||
return nick
|
||||
|
||||
def loadDB():
|
||||
"""Loads the relay database, creating a new one if this fails."""
|
||||
global db
|
||||
try:
|
||||
with open(dbname, "rb") as f:
|
||||
@ -97,6 +113,8 @@ def loadDB():
|
||||
db = {}
|
||||
|
||||
def exportDB(reschedule=False):
|
||||
"""Exports the relay database, optionally creating a loop to do this
|
||||
automatically."""
|
||||
scheduler = world.schedulers.get('relaydb')
|
||||
if reschedule and scheduler:
|
||||
scheduler.enter(30, 1, exportDB, argument=(True,))
|
||||
@ -104,18 +122,6 @@ def exportDB(reschedule=False):
|
||||
with open(dbname, 'wb') as f:
|
||||
pickle.dump(db, f, protocol=4)
|
||||
|
||||
@utils.add_cmd
|
||||
def save(irc, source, args):
|
||||
"""takes no arguments.
|
||||
|
||||
Saves the relay database to disk."""
|
||||
if utils.isOper(irc, source):
|
||||
exportDB()
|
||||
irc.msg(source, 'Done.')
|
||||
else:
|
||||
irc.msg(source, 'Error: You are not authenticated!')
|
||||
return
|
||||
|
||||
def getPrefixModes(irc, remoteirc, channel, user, mlist=None):
|
||||
"""
|
||||
Fetches all prefix modes for a user in a channel that are supported by the
|
||||
@ -137,7 +143,7 @@ def getPrefixModes(irc, remoteirc, channel, user, mlist=None):
|
||||
return modes
|
||||
|
||||
def getRemoteSid(irc, remoteirc):
|
||||
"""Get the remote server SID representing remoteirc on irc, spawning
|
||||
"""Gets the remote server SID representing remoteirc on irc, spawning
|
||||
it if it doesn't exist."""
|
||||
with spawnlocks[irc.name]:
|
||||
try:
|
||||
@ -148,6 +154,8 @@ def getRemoteSid(irc, remoteirc):
|
||||
return sid
|
||||
|
||||
def getRemoteUser(irc, remoteirc, user, spawnIfMissing=True):
|
||||
"""Gets the UID of the relay client for the given IRC network/user pair,
|
||||
spawning one if it doesn't exist and spawnIfMissing is True."""
|
||||
# If the user (stored here as {('netname', 'UID'):
|
||||
# {'network1': 'UID1', 'network2': 'UID2'}}) exists, don't spawn it
|
||||
# again!
|
||||
@ -207,30 +215,20 @@ def getRemoteUser(irc, remoteirc, user, spawnIfMissing=True):
|
||||
relayusers[(irc.name, user)][remoteirc.name] = u
|
||||
return u
|
||||
|
||||
def handle_operup(irc, numeric, command, args):
|
||||
newtype = args['text'] + '_(remote)'
|
||||
for netname, user in relayusers[(irc.name, numeric)].items():
|
||||
log.debug('(%s) relay.handle_opertype: setting OPERTYPE of %s/%s to %s', irc.name, user, netname, newtype)
|
||||
remoteirc = world.networkobjects[netname]
|
||||
remoteirc.users[user].opertype = newtype
|
||||
utils.add_hook(handle_operup, 'PYLINK_CLIENT_OPERED')
|
||||
|
||||
def getLocalUser(irc, user, targetirc=None):
|
||||
"""<irc object> <pseudoclient uid> [<target irc object>]
|
||||
"""
|
||||
Given the UID of a relay client, returns a tuple of the home network name
|
||||
and original UID of the user it was spawned for.
|
||||
|
||||
Returns a tuple with the home network name and the UID of the original
|
||||
user that <pseudoclient uid> was spawned for, where <pseudoclient uid>
|
||||
is the UID of a PyLink relay dummy client.
|
||||
|
||||
If <target irc object> is specified, returns the UID of the pseudoclient
|
||||
representing the original user on the target network, similar to what
|
||||
getRemoteUser() does."""
|
||||
If targetirc is given, getRemoteUser() is called to get the relay client
|
||||
representing the original user on that target network."""
|
||||
# First, iterate over everyone!
|
||||
try:
|
||||
remoteuser = irc.users[user].remote
|
||||
except (AttributeError, KeyError):
|
||||
remoteuser = None
|
||||
log.debug('(%s) getLocalUser: remoteuser set to %r (looking up %s/%s).', irc.name, remoteuser, user, irc.name)
|
||||
log.debug('(%s) getLocalUser: remoteuser set to %r (looking up %s/%s).',
|
||||
irc.name, remoteuser, user, irc.name)
|
||||
if remoteuser:
|
||||
# If targetirc is given, we'll return simply the UID of the user on the
|
||||
# target network, if it exists. Otherwise, we'll return a tuple
|
||||
@ -242,13 +240,17 @@ def getLocalUser(irc, user, targetirc=None):
|
||||
# requested; just return the UID then.
|
||||
return remoteuser[1]
|
||||
# Otherwise, use getRemoteUser to find our UID.
|
||||
res = getRemoteUser(sourceobj, targetirc, remoteuser[1], spawnIfMissing=False)
|
||||
log.debug('(%s) getLocalUser: targetirc found, getting %r as remoteuser for %r (looking up %s/%s).', irc.name, res, remoteuser[1], user, irc.name)
|
||||
res = getRemoteUser(sourceobj, targetirc, remoteuser[1],
|
||||
spawnIfMissing=False)
|
||||
log.debug('(%s) getLocalUser: targetirc found, getting %r as '
|
||||
'remoteuser for %r (looking up %s/%s).', irc.name, res,
|
||||
remoteuser[1], user, irc.name)
|
||||
return res
|
||||
else:
|
||||
return remoteuser
|
||||
|
||||
def findRelay(chanpair):
|
||||
"""Finds a matching relay for the given (network name, channel) pair."""
|
||||
if chanpair in db: # This chanpair is a shared channel; others link to it
|
||||
return chanpair
|
||||
# This chanpair is linked *to* a remote channel
|
||||
@ -257,6 +259,8 @@ def findRelay(chanpair):
|
||||
return name
|
||||
|
||||
def findRemoteChan(irc, remoteirc, channel):
|
||||
"""Returns the linked channel name for the given channel on remoteirc,
|
||||
if one exists."""
|
||||
query = (irc.name, channel)
|
||||
remotenetname = remoteirc.name
|
||||
chanpair = findRelay(query)
|
||||
@ -270,6 +274,7 @@ def findRemoteChan(irc, remoteirc, channel):
|
||||
return link[1]
|
||||
|
||||
def initializeChannel(irc, channel):
|
||||
"""Initializes a relay channel (merge local/remote users, set modes, etc.)."""
|
||||
# We're initializing a relay that already exists. This can be done at
|
||||
# ENDBURST, or on the LINK command.
|
||||
relay = findRelay((irc.name, channel))
|
||||
@ -303,6 +308,264 @@ def initializeChannel(irc, channel):
|
||||
relayJoins(irc, channel, irc.channels[channel].users, irc.channels[channel].ts)
|
||||
irc.proto.joinClient(irc.pseudoclient.uid, channel)
|
||||
|
||||
def removeChannel(irc, channel):
|
||||
"""Destroys a relay channel by parting all of its users."""
|
||||
if irc is None:
|
||||
return
|
||||
if channel not in map(str.lower, irc.serverdata['channels']):
|
||||
irc.proto.partClient(irc.pseudoclient.uid, channel, 'Channel delinked.')
|
||||
relay = findRelay((irc.name, channel))
|
||||
if relay:
|
||||
for user in irc.channels[channel].users.copy():
|
||||
if not isRelayClient(irc, user):
|
||||
relayPart(irc, channel, user)
|
||||
# Don't ever part the main client from any of its autojoin channels.
|
||||
else:
|
||||
if user == irc.pseudoclient.uid and channel in \
|
||||
irc.serverdata['channels']:
|
||||
continue
|
||||
irc.proto.partClient(user, channel, 'Channel delinked.')
|
||||
# Don't ever quit it either...
|
||||
if user != irc.pseudoclient.uid and not irc.users[user].channels:
|
||||
remoteuser = getLocalUser(irc, user)
|
||||
del relayusers[remoteuser][irc.name]
|
||||
irc.proto.quitClient(user, 'Left all shared channels.')
|
||||
|
||||
def checkClaim(irc, channel, sender, chanobj=None):
|
||||
"""
|
||||
Checks whether the sender of a kick/mode change passes CLAIM checks for
|
||||
a given channel. This returns True if any of the following criteria are met:
|
||||
|
||||
1) The originating network is in the CLAIM list for the relay in question.
|
||||
2) The sender is halfop or above in the channel.
|
||||
3) The sender is a PyLink client/server (checks are suppressed in this case).
|
||||
4) No relay exists for the channel in question.
|
||||
5) The originating network is the one that created the relay.
|
||||
"""
|
||||
relay = findRelay((irc.name, channel))
|
||||
try:
|
||||
mlist = chanobj.prefixmodes
|
||||
except AttributeError:
|
||||
mlist = None
|
||||
sender_modes = getPrefixModes(irc, irc, channel, sender, mlist=mlist)
|
||||
log.debug('(%s) relay.checkClaim: sender modes (%s/%s) are %s (mlist=%s)', irc.name,
|
||||
sender, channel, sender_modes, mlist)
|
||||
return (not relay) or irc.name == relay[0] or irc.name in db[relay]['claim'] or \
|
||||
any([mode in sender_modes for mode in ('y', 'q', 'a', 'o', 'h')]) \
|
||||
or utils.isInternalClient(irc, sender) or \
|
||||
utils.isInternalServer(irc, sender)
|
||||
|
||||
def getSupportedUmodes(irc, remoteirc, modes):
|
||||
"""Given a list of user modes, filters out all of those not supported by the
|
||||
remote network."""
|
||||
supported_modes = []
|
||||
for modepair in modes:
|
||||
try:
|
||||
prefix, modechar = modepair[0]
|
||||
except ValueError:
|
||||
modechar = modepair[0]
|
||||
prefix = '+'
|
||||
arg = modepair[1]
|
||||
for name, m in irc.umodes.items():
|
||||
supported_char = None
|
||||
if modechar == m:
|
||||
if name not in whitelisted_umodes:
|
||||
log.debug("(%s) getSupportedUmodes: skipping mode (%r, %r) because "
|
||||
"it isn't a whitelisted (safe) mode for relay.",
|
||||
irc.name, modechar, arg)
|
||||
break
|
||||
supported_char = remoteirc.umodes.get(name)
|
||||
if supported_char:
|
||||
supported_modes.append((prefix+supported_char, arg))
|
||||
break
|
||||
else:
|
||||
log.debug("(%s) getSupportedUmodes: skipping mode (%r, %r) because "
|
||||
"the remote network (%s)'s IRCd (%s) doesn't support it.",
|
||||
irc.name, modechar, arg, remoteirc.name,
|
||||
remoteirc.protoname)
|
||||
return supported_modes
|
||||
|
||||
def isRelayClient(irc, user):
|
||||
"""Returns whether the given user is a relay client."""
|
||||
try:
|
||||
if irc.users[user].remote:
|
||||
# Is the .remote attribute set? If so, don't relay already
|
||||
# relayed clients; that'll trigger an endless loop!
|
||||
return True
|
||||
except AttributeError: # Nope, it isn't.
|
||||
pass
|
||||
except KeyError: # The user doesn't exist?!?
|
||||
return True
|
||||
return False
|
||||
|
||||
### EVENT HANDLER INTERNALS
|
||||
|
||||
def relayJoins(irc, channel, users, ts, burst=True):
|
||||
for name, remoteirc in world.networkobjects.items():
|
||||
queued_users = []
|
||||
if name == irc.name or not remoteirc.connected.is_set():
|
||||
# Don't relay things to their source network...
|
||||
continue
|
||||
remotechan = findRemoteChan(irc, remoteirc, channel)
|
||||
if remotechan is None:
|
||||
# If there is no link on our network for the user, don't
|
||||
# bother spawning it.
|
||||
continue
|
||||
log.debug('(%s) relayJoins: got %r for users', irc.name, users)
|
||||
for user in users.copy():
|
||||
if isRelayClient(irc, user):
|
||||
# Don't clone relay clients; that'll cause some bad, bad
|
||||
# things to happen.
|
||||
continue
|
||||
log.debug('Okay, spawning %s/%s everywhere', user, irc.name)
|
||||
assert user in irc.users, "(%s) How is this possible? %r isn't in our user database." % (irc.name, user)
|
||||
u = getRemoteUser(irc, remoteirc, user)
|
||||
# Only join users if they aren't already joined. This prevents op floods
|
||||
# on charybdis from all the SJOINing.
|
||||
if u not in remoteirc.channels[remotechan].users:
|
||||
ts = irc.channels[channel].ts
|
||||
prefixes = getPrefixModes(irc, remoteirc, channel, user)
|
||||
userpair = (prefixes, u)
|
||||
queued_users.append(userpair)
|
||||
log.debug('(%s) relayJoins: joining %s to %s%s', irc.name, userpair, remoteirc.name, remotechan)
|
||||
else:
|
||||
log.debug('(%s) relayJoins: not joining %s to %s%s; they\'re already there!', irc.name,
|
||||
u, remoteirc.name, remotechan)
|
||||
if queued_users:
|
||||
# Burst was explicitly given, or we're trying to join multiple
|
||||
# users/someone with a prefix.
|
||||
if burst or len(queued_users) > 1 or queued_users[0][0]:
|
||||
rsid = getRemoteSid(remoteirc, irc)
|
||||
remoteirc.proto.sjoinServer(rsid, remotechan, queued_users, ts=ts)
|
||||
relayModes(irc, remoteirc, getRemoteSid(irc, remoteirc), channel, irc.channels[channel].modes)
|
||||
else:
|
||||
remoteirc.proto.joinClient(queued_users[0][1], remotechan)
|
||||
|
||||
def relayPart(irc, channel, user):
|
||||
for name, remoteirc in world.networkobjects.items():
|
||||
if name == irc.name or not remoteirc.connected.is_set():
|
||||
# Don't relay things to their source network...
|
||||
continue
|
||||
remotechan = findRemoteChan(irc, remoteirc, channel)
|
||||
log.debug('(%s) relayPart: looking for %s/%s on %s', irc.name, user, irc.name, remoteirc.name)
|
||||
log.debug('(%s) relayPart: remotechan found as %s', irc.name, remotechan)
|
||||
remoteuser = getRemoteUser(irc, remoteirc, user, spawnIfMissing=False)
|
||||
log.debug('(%s) relayPart: remoteuser for %s/%s found as %s', irc.name, user, irc.name, remoteuser)
|
||||
if remotechan is None or remoteuser is None:
|
||||
continue
|
||||
remoteirc.proto.partClient(remoteuser, remotechan, 'Channel delinked.')
|
||||
if isRelayClient(remoteirc, remoteuser) and not remoteirc.users[remoteuser].channels:
|
||||
remoteirc.proto.quitClient(remoteuser, 'Left all shared channels.')
|
||||
del relayusers[(irc.name, user)][remoteirc.name]
|
||||
|
||||
|
||||
whitelisted_cmodes = {'admin', 'allowinvite', 'autoop', 'ban', 'banexception',
|
||||
'blockcolor', 'halfop', 'invex', 'inviteonly', 'key',
|
||||
'limit', 'moderated', 'noctcp', 'noextmsg', 'nokick',
|
||||
'noknock', 'nonick', 'nonotice', 'op', 'operonly',
|
||||
'opmoderated', 'owner', 'private', 'regonly',
|
||||
'regmoderated', 'secret', 'sslonly', 'adminonly',
|
||||
'stripcolor', 'topiclock', 'voice'}
|
||||
whitelisted_umodes = {'bot', 'hidechans', 'hideoper', 'invisible', 'oper',
|
||||
'regdeaf', 'u_stripcolor', 'u_noctcp', 'wallops'}
|
||||
def relayModes(irc, remoteirc, sender, channel, modes=None):
|
||||
remotechan = findRemoteChan(irc, remoteirc, channel)
|
||||
log.debug('(%s) Relay mode: remotechan for %s on %s is %s', irc.name, channel, irc.name, remotechan)
|
||||
if remotechan is None:
|
||||
return
|
||||
if modes is None:
|
||||
modes = irc.channels[channel].modes
|
||||
log.debug('(%s) Relay mode: channel data for %s%s: %s', irc.name, remoteirc.name, remotechan, remoteirc.channels[remotechan])
|
||||
supported_modes = []
|
||||
log.debug('(%s) Relay mode: initial modelist for %s is %s', irc.name, channel, modes)
|
||||
for modepair in modes:
|
||||
try:
|
||||
prefix, modechar = modepair[0]
|
||||
except ValueError:
|
||||
modechar = modepair[0]
|
||||
prefix = '+'
|
||||
arg = modepair[1]
|
||||
# Iterate over every mode see whether the remote IRCd supports
|
||||
# this mode, and what its mode char for it is (if it is different).
|
||||
for name, m in irc.cmodes.items():
|
||||
supported_char = None
|
||||
if modechar == m:
|
||||
supported_char = remoteirc.cmodes.get(name)
|
||||
if supported_char is None:
|
||||
break
|
||||
if name not in whitelisted_cmodes:
|
||||
log.debug("(%s) Relay mode: skipping mode (%r, %r) because "
|
||||
"it isn't a whitelisted (safe) mode for relay.",
|
||||
irc.name, modechar, arg)
|
||||
break
|
||||
if modechar in irc.prefixmodes:
|
||||
# This is a prefix mode (e.g. +o). We must coerse the argument
|
||||
# so that the target exists on the remote relay network.
|
||||
log.debug("(%s) Relay mode: coersing argument of (%r, %r) "
|
||||
"for network %r.",
|
||||
irc.name, modechar, arg, remoteirc.name)
|
||||
# If the target is a remote user, get the real target
|
||||
# (original user).
|
||||
arg = getLocalUser(irc, arg, targetirc=remoteirc) or \
|
||||
getRemoteUser(irc, remoteirc, arg, spawnIfMissing=False)
|
||||
log.debug("(%s) Relay mode: argument found as (%r, %r) "
|
||||
"for network %r.",
|
||||
irc.name, modechar, arg, remoteirc.name)
|
||||
oplist = remoteirc.channels[remotechan].prefixmodes[name+'s']
|
||||
log.debug("(%s) Relay mode: list of %ss on %r is: %s",
|
||||
irc.name, name, remotechan, oplist)
|
||||
if prefix == '+' and arg in oplist:
|
||||
# Don't set prefix modes that are already set.
|
||||
log.debug("(%s) Relay mode: skipping setting %s on %s/%s because it appears to be already set.",
|
||||
irc.name, name, arg, remoteirc.name)
|
||||
break
|
||||
supported_char = remoteirc.cmodes.get(name)
|
||||
if supported_char:
|
||||
final_modepair = (prefix+supported_char, arg)
|
||||
if name in ('ban', 'banexception', 'invex') and not utils.isHostmask(arg):
|
||||
# Don't add bans that don't match n!u@h syntax!
|
||||
log.debug("(%s) Relay mode: skipping mode (%r, %r) because it doesn't match nick!user@host syntax.",
|
||||
irc.name, modechar, arg)
|
||||
break
|
||||
# Don't set modes that are already set, to prevent floods on TS6
|
||||
# where the same mode can be set infinite times.
|
||||
if prefix == '+' and final_modepair in remoteirc.channels[remotechan].modes:
|
||||
log.debug("(%s) Relay mode: skipping setting mode (%r, %r) on %s%s because it appears to be already set.",
|
||||
irc.name, supported_char, arg, remoteirc.name, remotechan)
|
||||
break
|
||||
supported_modes.append(final_modepair)
|
||||
log.debug('(%s) Relay mode: final modelist (sending to %s%s) is %s', irc.name, remoteirc.name, remotechan, supported_modes)
|
||||
# Don't send anything if there are no supported modes left after filtering.
|
||||
if supported_modes:
|
||||
# Check if the sender is a user; remember servers are allowed to set modes too.
|
||||
u = getRemoteUser(irc, remoteirc, sender, spawnIfMissing=False)
|
||||
if u:
|
||||
remoteirc.proto.modeClient(u, remotechan, supported_modes)
|
||||
else:
|
||||
rsid = getRemoteSid(remoteirc, irc)
|
||||
remoteirc.proto.modeServer(rsid, remotechan, supported_modes)
|
||||
|
||||
def relayWhoisHandler(irc, target):
|
||||
user = irc.users[target]
|
||||
orig = getLocalUser(irc, target)
|
||||
if orig:
|
||||
network, remoteuid = orig
|
||||
remotenick = world.networkobjects[network].users[remoteuid].nick
|
||||
return [320, "%s :is a remote user connected via PyLink Relay. Home "
|
||||
"network: %s; Home nick: %s" % (user.nick, network,
|
||||
remotenick)]
|
||||
world.whois_handlers.append(relayWhoisHandler)
|
||||
|
||||
### GENERIC EVENT HOOK HANDLERS
|
||||
|
||||
def handle_operup(irc, numeric, command, args):
|
||||
newtype = args['text'] + '_(remote)'
|
||||
for netname, user in relayusers[(irc.name, numeric)].items():
|
||||
log.debug('(%s) relay.handle_opertype: setting OPERTYPE of %s/%s to %s', irc.name, user, netname, newtype)
|
||||
remoteirc = world.networkobjects[netname]
|
||||
remoteirc.users[user].opertype = newtype
|
||||
utils.add_hook(handle_operup, 'PYLINK_CLIENT_OPERED')
|
||||
|
||||
def handle_join(irc, numeric, command, args):
|
||||
channel = args['channel']
|
||||
if not findRelay((irc.name, channel)):
|
||||
@ -425,30 +688,6 @@ def handle_privmsg(irc, numeric, command, args):
|
||||
utils.add_hook(handle_privmsg, 'PRIVMSG')
|
||||
utils.add_hook(handle_privmsg, 'NOTICE')
|
||||
|
||||
def checkClaim(irc, channel, sender, chanobj=None):
|
||||
"""
|
||||
Checks whether the sender of a kick/mode change passes CLAIM checks for
|
||||
a given channel. This returns True if any of the following criteria are met:
|
||||
|
||||
1) The originating network is in the CLAIM list for the relay in question.
|
||||
2) The sender is halfop or above in the channel.
|
||||
3) The sender is a PyLink client/server (checks are suppressed in this case).
|
||||
4) No relay exists for the channel in question.
|
||||
5) The originating network is the one that created the relay.
|
||||
"""
|
||||
relay = findRelay((irc.name, channel))
|
||||
try:
|
||||
mlist = chanobj.prefixmodes
|
||||
except AttributeError:
|
||||
mlist = None
|
||||
sender_modes = getPrefixModes(irc, irc, channel, sender, mlist=mlist)
|
||||
log.debug('(%s) relay.checkClaim: sender modes (%s/%s) are %s (mlist=%s)', irc.name,
|
||||
sender, channel, sender_modes, mlist)
|
||||
return (not relay) or irc.name == relay[0] or irc.name in db[relay]['claim'] or \
|
||||
any([mode in sender_modes for mode in ('y', 'q', 'a', 'o', 'h')]) \
|
||||
or utils.isInternalClient(irc, sender) or \
|
||||
utils.isInternalServer(irc, sender)
|
||||
|
||||
def handle_kick(irc, source, command, args):
|
||||
channel = args['channel']
|
||||
target = args['target']
|
||||
@ -559,120 +798,6 @@ def handle_chgclient(irc, source, command, args):
|
||||
for c in ('CHGHOST', 'CHGNAME', 'CHGIDENT'):
|
||||
utils.add_hook(handle_chgclient, c)
|
||||
|
||||
whitelisted_cmodes = {'admin', 'allowinvite', 'autoop', 'ban', 'banexception',
|
||||
'blockcolor', 'halfop', 'invex', 'inviteonly', 'key',
|
||||
'limit', 'moderated', 'noctcp', 'noextmsg', 'nokick',
|
||||
'noknock', 'nonick', 'nonotice', 'op', 'operonly',
|
||||
'opmoderated', 'owner', 'private', 'regonly',
|
||||
'regmoderated', 'secret', 'sslonly', 'adminonly',
|
||||
'stripcolor', 'topiclock', 'voice'}
|
||||
whitelisted_umodes = {'bot', 'hidechans', 'hideoper', 'invisible', 'oper',
|
||||
'regdeaf', 'u_stripcolor', 'u_noctcp', 'wallops'}
|
||||
def relayModes(irc, remoteirc, sender, channel, modes=None):
|
||||
remotechan = findRemoteChan(irc, remoteirc, channel)
|
||||
log.debug('(%s) Relay mode: remotechan for %s on %s is %s', irc.name, channel, irc.name, remotechan)
|
||||
if remotechan is None:
|
||||
return
|
||||
if modes is None:
|
||||
modes = irc.channels[channel].modes
|
||||
log.debug('(%s) Relay mode: channel data for %s%s: %s', irc.name, remoteirc.name, remotechan, remoteirc.channels[remotechan])
|
||||
supported_modes = []
|
||||
log.debug('(%s) Relay mode: initial modelist for %s is %s', irc.name, channel, modes)
|
||||
for modepair in modes:
|
||||
try:
|
||||
prefix, modechar = modepair[0]
|
||||
except ValueError:
|
||||
modechar = modepair[0]
|
||||
prefix = '+'
|
||||
arg = modepair[1]
|
||||
# Iterate over every mode see whether the remote IRCd supports
|
||||
# this mode, and what its mode char for it is (if it is different).
|
||||
for name, m in irc.cmodes.items():
|
||||
supported_char = None
|
||||
if modechar == m:
|
||||
supported_char = remoteirc.cmodes.get(name)
|
||||
if supported_char is None:
|
||||
break
|
||||
if name not in whitelisted_cmodes:
|
||||
log.debug("(%s) Relay mode: skipping mode (%r, %r) because "
|
||||
"it isn't a whitelisted (safe) mode for relay.",
|
||||
irc.name, modechar, arg)
|
||||
break
|
||||
if modechar in irc.prefixmodes:
|
||||
# This is a prefix mode (e.g. +o). We must coerse the argument
|
||||
# so that the target exists on the remote relay network.
|
||||
log.debug("(%s) Relay mode: coersing argument of (%r, %r) "
|
||||
"for network %r.",
|
||||
irc.name, modechar, arg, remoteirc.name)
|
||||
# If the target is a remote user, get the real target
|
||||
# (original user).
|
||||
arg = getLocalUser(irc, arg, targetirc=remoteirc) or \
|
||||
getRemoteUser(irc, remoteirc, arg, spawnIfMissing=False)
|
||||
log.debug("(%s) Relay mode: argument found as (%r, %r) "
|
||||
"for network %r.",
|
||||
irc.name, modechar, arg, remoteirc.name)
|
||||
oplist = remoteirc.channels[remotechan].prefixmodes[name+'s']
|
||||
log.debug("(%s) Relay mode: list of %ss on %r is: %s",
|
||||
irc.name, name, remotechan, oplist)
|
||||
if prefix == '+' and arg in oplist:
|
||||
# Don't set prefix modes that are already set.
|
||||
log.debug("(%s) Relay mode: skipping setting %s on %s/%s because it appears to be already set.",
|
||||
irc.name, name, arg, remoteirc.name)
|
||||
break
|
||||
supported_char = remoteirc.cmodes.get(name)
|
||||
if supported_char:
|
||||
final_modepair = (prefix+supported_char, arg)
|
||||
if name in ('ban', 'banexception', 'invex') and not utils.isHostmask(arg):
|
||||
# Don't add bans that don't match n!u@h syntax!
|
||||
log.debug("(%s) Relay mode: skipping mode (%r, %r) because it doesn't match nick!user@host syntax.",
|
||||
irc.name, modechar, arg)
|
||||
break
|
||||
# Don't set modes that are already set, to prevent floods on TS6
|
||||
# where the same mode can be set infinite times.
|
||||
if prefix == '+' and final_modepair in remoteirc.channels[remotechan].modes:
|
||||
log.debug("(%s) Relay mode: skipping setting mode (%r, %r) on %s%s because it appears to be already set.",
|
||||
irc.name, supported_char, arg, remoteirc.name, remotechan)
|
||||
break
|
||||
supported_modes.append(final_modepair)
|
||||
log.debug('(%s) Relay mode: final modelist (sending to %s%s) is %s', irc.name, remoteirc.name, remotechan, supported_modes)
|
||||
# Don't send anything if there are no supported modes left after filtering.
|
||||
if supported_modes:
|
||||
# Check if the sender is a user; remember servers are allowed to set modes too.
|
||||
u = getRemoteUser(irc, remoteirc, sender, spawnIfMissing=False)
|
||||
if u:
|
||||
remoteirc.proto.modeClient(u, remotechan, supported_modes)
|
||||
else:
|
||||
rsid = getRemoteSid(remoteirc, irc)
|
||||
remoteirc.proto.modeServer(rsid, remotechan, supported_modes)
|
||||
|
||||
def getSupportedUmodes(irc, remoteirc, modes):
|
||||
supported_modes = []
|
||||
for modepair in modes:
|
||||
try:
|
||||
prefix, modechar = modepair[0]
|
||||
except ValueError:
|
||||
modechar = modepair[0]
|
||||
prefix = '+'
|
||||
arg = modepair[1]
|
||||
for name, m in irc.umodes.items():
|
||||
supported_char = None
|
||||
if modechar == m:
|
||||
if name not in whitelisted_umodes:
|
||||
log.debug("(%s) getSupportedUmodes: skipping mode (%r, %r) because "
|
||||
"it isn't a whitelisted (safe) mode for relay.",
|
||||
irc.name, modechar, arg)
|
||||
break
|
||||
supported_char = remoteirc.umodes.get(name)
|
||||
if supported_char:
|
||||
supported_modes.append((prefix+supported_char, arg))
|
||||
break
|
||||
else:
|
||||
log.debug("(%s) getSupportedUmodes: skipping mode (%r, %r) because "
|
||||
"the remote network (%s)'s IRCd (%s) doesn't support it.",
|
||||
irc.name, modechar, arg, remoteirc.name,
|
||||
remoteirc.protoname)
|
||||
return supported_modes
|
||||
|
||||
def handle_mode(irc, numeric, command, args):
|
||||
target = args['target']
|
||||
modes = args['modes']
|
||||
@ -778,97 +903,94 @@ def handle_kill(irc, numeric, command, args):
|
||||
|
||||
utils.add_hook(handle_kill, 'KILL')
|
||||
|
||||
def isRelayClient(irc, user):
|
||||
try:
|
||||
if irc.users[user].remote:
|
||||
# Is the .remote attribute set? If so, don't relay already
|
||||
# relayed clients; that'll trigger an endless loop!
|
||||
return True
|
||||
except AttributeError: # Nope, it isn't.
|
||||
pass
|
||||
except KeyError: # The user doesn't exist?!?
|
||||
return True
|
||||
return False
|
||||
def handle_away(irc, numeric, command, args):
|
||||
for netname, user in relayusers[(irc.name, numeric)].items():
|
||||
remoteirc = world.networkobjects[netname]
|
||||
remoteirc.proto.awayClient(user, args['text'])
|
||||
utils.add_hook(handle_away, 'AWAY')
|
||||
|
||||
def relayJoins(irc, channel, users, ts, burst=True):
|
||||
for name, remoteirc in world.networkobjects.items():
|
||||
queued_users = []
|
||||
if name == irc.name or not remoteirc.connected.is_set():
|
||||
# Don't relay things to their source network...
|
||||
continue
|
||||
def handle_spawnmain(irc, numeric, command, args):
|
||||
if args['olduser']:
|
||||
# Kills to the main PyLink client force reinitialization; this makes sure
|
||||
# it joins all the relay channels like it's supposed to.
|
||||
initializeAll(irc)
|
||||
utils.add_hook(handle_spawnmain, 'PYLINK_SPAWNMAIN')
|
||||
|
||||
def handle_invite(irc, source, command, args):
|
||||
target = args['target']
|
||||
channel = args['channel']
|
||||
if isRelayClient(irc, target):
|
||||
remotenet, remoteuser = getLocalUser(irc, target)
|
||||
remoteirc = world.networkobjects[remotenet]
|
||||
remotechan = findRemoteChan(irc, remoteirc, channel)
|
||||
if remotechan is None:
|
||||
# If there is no link on our network for the user, don't
|
||||
# bother spawning it.
|
||||
continue
|
||||
log.debug('(%s) relayJoins: got %r for users', irc.name, users)
|
||||
for user in users.copy():
|
||||
if isRelayClient(irc, user):
|
||||
# Don't clone relay clients; that'll cause some bad, bad
|
||||
# things to happen.
|
||||
continue
|
||||
log.debug('Okay, spawning %s/%s everywhere', user, irc.name)
|
||||
assert user in irc.users, "(%s) How is this possible? %r isn't in our user database." % (irc.name, user)
|
||||
u = getRemoteUser(irc, remoteirc, user)
|
||||
# Only join users if they aren't already joined. This prevents op floods
|
||||
# on charybdis from all the SJOINing.
|
||||
if u not in remoteirc.channels[remotechan].users:
|
||||
ts = irc.channels[channel].ts
|
||||
prefixes = getPrefixModes(irc, remoteirc, channel, user)
|
||||
userpair = (prefixes, u)
|
||||
queued_users.append(userpair)
|
||||
log.debug('(%s) relayJoins: joining %s to %s%s', irc.name, userpair, remoteirc.name, remotechan)
|
||||
remotesource = getRemoteUser(irc, remoteirc, source, spawnIfMissing=False)
|
||||
if remotesource is None:
|
||||
irc.msg(source, 'Error: You must be in a common channel '
|
||||
'with %s to invite them to channels.' % \
|
||||
irc.users[target].nick,
|
||||
notice=True)
|
||||
elif remotechan is None:
|
||||
irc.msg(source, 'Error: You cannot invite someone to a '
|
||||
'channel not on their network!',
|
||||
notice=True)
|
||||
else:
|
||||
log.debug('(%s) relayJoins: not joining %s to %s%s; they\'re already there!', irc.name,
|
||||
u, remoteirc.name, remotechan)
|
||||
if queued_users:
|
||||
# Burst was explicitly given, or we're trying to join multiple
|
||||
# users/someone with a prefix.
|
||||
if burst or len(queued_users) > 1 or queued_users[0][0]:
|
||||
rsid = getRemoteSid(remoteirc, irc)
|
||||
remoteirc.proto.sjoinServer(rsid, remotechan, queued_users, ts=ts)
|
||||
relayModes(irc, remoteirc, getRemoteSid(irc, remoteirc), channel, irc.channels[channel].modes)
|
||||
else:
|
||||
remoteirc.proto.joinClient(queued_users[0][1], remotechan)
|
||||
remoteirc.proto.inviteClient(remotesource, remoteuser,
|
||||
remotechan)
|
||||
utils.add_hook(handle_invite, 'INVITE')
|
||||
|
||||
def relayPart(irc, channel, user):
|
||||
for name, remoteirc in world.networkobjects.items():
|
||||
if name == irc.name or not remoteirc.connected.is_set():
|
||||
# Don't relay things to their source network...
|
||||
continue
|
||||
remotechan = findRemoteChan(irc, remoteirc, channel)
|
||||
log.debug('(%s) relayPart: looking for %s/%s on %s', irc.name, user, irc.name, remoteirc.name)
|
||||
log.debug('(%s) relayPart: remotechan found as %s', irc.name, remotechan)
|
||||
remoteuser = getRemoteUser(irc, remoteirc, user, spawnIfMissing=False)
|
||||
log.debug('(%s) relayPart: remoteuser for %s/%s found as %s', irc.name, user, irc.name, remoteuser)
|
||||
if remotechan is None or remoteuser is None:
|
||||
continue
|
||||
remoteirc.proto.partClient(remoteuser, remotechan, 'Channel delinked.')
|
||||
if isRelayClient(remoteirc, remoteuser) and not remoteirc.users[remoteuser].channels:
|
||||
remoteirc.proto.quitClient(remoteuser, 'Left all shared channels.')
|
||||
del relayusers[(irc.name, user)][remoteirc.name]
|
||||
def handle_endburst(irc, numeric, command, args):
|
||||
if numeric == irc.uplink:
|
||||
initializeAll(irc)
|
||||
utils.add_hook(handle_endburst, "ENDBURST")
|
||||
|
||||
def removeChannel(irc, channel):
|
||||
if irc is None:
|
||||
return
|
||||
if channel not in map(str.lower, irc.serverdata['channels']):
|
||||
irc.proto.partClient(irc.pseudoclient.uid, channel, 'Channel delinked.')
|
||||
relay = findRelay((irc.name, channel))
|
||||
if relay:
|
||||
for user in irc.channels[channel].users.copy():
|
||||
if not isRelayClient(irc, user):
|
||||
relayPart(irc, channel, user)
|
||||
# Don't ever part the main client from any of its autojoin channels.
|
||||
def handle_disconnect(irc, numeric, command, args):
|
||||
for k, v in relayusers.copy().items():
|
||||
if irc.name in v:
|
||||
del relayusers[k][irc.name]
|
||||
if k[0] == irc.name:
|
||||
del relayusers[k]
|
||||
for name, ircobj in world.networkobjects.items():
|
||||
if name != irc.name:
|
||||
rsid = getRemoteSid(ircobj, irc)
|
||||
ircobj.proto.squitServer(ircobj.sid, rsid, text='Home network lost connection.')
|
||||
del relayservers[name][irc.name]
|
||||
del relayservers[irc.name]
|
||||
# handle_quit(irc, k[1], 'PYLINK_DISCONNECT', {'text': 'Home network lost connection.'})
|
||||
|
||||
utils.add_hook(handle_disconnect, "PYLINK_DISCONNECT")
|
||||
|
||||
def handle_save(irc, numeric, command, args):
|
||||
target = args['target']
|
||||
realuser = getLocalUser(irc, target)
|
||||
log.debug('(%s) relay handle_save: %r got in a nick collision! Real user: %r',
|
||||
irc.name, target, realuser)
|
||||
if isRelayClient(irc, target) and realuser:
|
||||
# Nick collision!
|
||||
# It's one of our relay clients; try to fix our nick to the next
|
||||
# available normalized nick.
|
||||
remotenet, remoteuser = realuser
|
||||
remoteirc = world.networkobjects[remotenet]
|
||||
nick = remoteirc.users[remoteuser].nick
|
||||
# Limit how many times we can attempt to fix our nick, to prevent
|
||||
# floods and such.
|
||||
if savecache.setdefault(irc.name, 0) <= 5:
|
||||
newnick = normalizeNick(irc, remotenet, nick)
|
||||
log.info('(%s) SAVE received for relay client %r (%s), fixing nick to %s',
|
||||
irc.name, target, nick, newnick)
|
||||
irc.proto.nickClient(target, newnick)
|
||||
else:
|
||||
if user == irc.pseudoclient.uid and channel in \
|
||||
irc.serverdata['channels']:
|
||||
continue
|
||||
irc.proto.partClient(user, channel, 'Channel delinked.')
|
||||
# Don't ever quit it either...
|
||||
if user != irc.pseudoclient.uid and not irc.users[user].channels:
|
||||
remoteuser = getLocalUser(irc, user)
|
||||
del relayusers[remoteuser][irc.name]
|
||||
irc.proto.quitClient(user, 'Left all shared channels.')
|
||||
log.warning('(%s) SAVE received for relay client %r (%s), not '
|
||||
'fixing nick again due to 5 failed attempts in '
|
||||
'the last 10 seconds!', irc.name, target, nick)
|
||||
savecache[irc.name] += 1
|
||||
else:
|
||||
# Somebody else on the network (not a PyLink client) had a nick collision;
|
||||
# relay this as a nick change appropriately.
|
||||
handle_nick(irc, target, 'SAVE', {'oldnick': None, 'newnick': target})
|
||||
|
||||
utils.add_hook(handle_save, "SAVE")
|
||||
|
||||
### PUBLIC COMMANDS
|
||||
|
||||
@utils.add_cmd
|
||||
def create(irc, source, args):
|
||||
@ -1015,78 +1137,6 @@ def delink(irc, source, args):
|
||||
else:
|
||||
irc.msg(source, 'Error: No such relay %r.' % channel)
|
||||
|
||||
def initializeAll(irc):
|
||||
log.debug('(%s) initializeAll: waiting for world.started', irc.name)
|
||||
world.started.wait()
|
||||
for chanpair, entrydata in db.items():
|
||||
network, channel = chanpair
|
||||
initializeChannel(irc, channel)
|
||||
for link in entrydata['links']:
|
||||
network, channel = link
|
||||
initializeChannel(irc, channel)
|
||||
|
||||
def main():
|
||||
loadDB()
|
||||
world.schedulers['relaydb'] = scheduler = sched.scheduler()
|
||||
scheduler.enter(30, 1, exportDB, argument=(True,))
|
||||
# Thread this because exportDB() queues itself as part of its
|
||||
# execution, in order to get a repeating loop.
|
||||
thread = threading.Thread(target=scheduler.run)
|
||||
thread.daemon = True
|
||||
thread.start()
|
||||
|
||||
def handle_endburst(irc, numeric, command, args):
|
||||
if numeric == irc.uplink:
|
||||
initializeAll(irc)
|
||||
utils.add_hook(handle_endburst, "ENDBURST")
|
||||
|
||||
def handle_disconnect(irc, numeric, command, args):
|
||||
for k, v in relayusers.copy().items():
|
||||
if irc.name in v:
|
||||
del relayusers[k][irc.name]
|
||||
if k[0] == irc.name:
|
||||
del relayusers[k]
|
||||
for name, ircobj in world.networkobjects.items():
|
||||
if name != irc.name:
|
||||
rsid = getRemoteSid(ircobj, irc)
|
||||
ircobj.proto.squitServer(ircobj.sid, rsid, text='Home network lost connection.')
|
||||
del relayservers[name][irc.name]
|
||||
del relayservers[irc.name]
|
||||
# handle_quit(irc, k[1], 'PYLINK_DISCONNECT', {'text': 'Home network lost connection.'})
|
||||
|
||||
utils.add_hook(handle_disconnect, "PYLINK_DISCONNECT")
|
||||
|
||||
def handle_save(irc, numeric, command, args):
|
||||
target = args['target']
|
||||
realuser = getLocalUser(irc, target)
|
||||
log.debug('(%s) relay handle_save: %r got in a nick collision! Real user: %r',
|
||||
irc.name, target, realuser)
|
||||
if isRelayClient(irc, target) and realuser:
|
||||
# Nick collision!
|
||||
# It's one of our relay clients; try to fix our nick to the next
|
||||
# available normalized nick.
|
||||
remotenet, remoteuser = realuser
|
||||
remoteirc = world.networkobjects[remotenet]
|
||||
nick = remoteirc.users[remoteuser].nick
|
||||
# Limit how many times we can attempt to fix our nick, to prevent
|
||||
# floods and such.
|
||||
if savecache.setdefault(irc.name, 0) <= 5:
|
||||
newnick = normalizeNick(irc, remotenet, nick)
|
||||
log.info('(%s) SAVE received for relay client %r (%s), fixing nick to %s',
|
||||
irc.name, target, nick, newnick)
|
||||
irc.proto.nickClient(target, newnick)
|
||||
else:
|
||||
log.warning('(%s) SAVE received for relay client %r (%s), not '
|
||||
'fixing nick again due to 5 failed attempts in '
|
||||
'the last 10 seconds!', irc.name, target, nick)
|
||||
savecache[irc.name] += 1
|
||||
else:
|
||||
# Somebody else on the network (not a PyLink client) had a nick collision;
|
||||
# relay this as a nick change appropriately.
|
||||
handle_nick(irc, target, 'SAVE', {'oldnick': None, 'newnick': target})
|
||||
|
||||
utils.add_hook(handle_save, "SAVE")
|
||||
|
||||
@utils.add_cmd
|
||||
def linked(irc, source, args):
|
||||
"""takes no arguments.
|
||||
@ -1105,41 +1155,6 @@ def linked(irc, source, args):
|
||||
s += '(no relays yet)'
|
||||
irc.msg(source, s)
|
||||
|
||||
def handle_away(irc, numeric, command, args):
|
||||
for netname, user in relayusers[(irc.name, numeric)].items():
|
||||
remoteirc = world.networkobjects[netname]
|
||||
remoteirc.proto.awayClient(user, args['text'])
|
||||
utils.add_hook(handle_away, 'AWAY')
|
||||
|
||||
def handle_spawnmain(irc, numeric, command, args):
|
||||
if args['olduser']:
|
||||
# Kills to the main PyLink client force reinitialization; this makes sure
|
||||
# it joins all the relay channels like it's supposed to.
|
||||
initializeAll(irc)
|
||||
utils.add_hook(handle_spawnmain, 'PYLINK_SPAWNMAIN')
|
||||
|
||||
def handle_invite(irc, source, command, args):
|
||||
target = args['target']
|
||||
channel = args['channel']
|
||||
if isRelayClient(irc, target):
|
||||
remotenet, remoteuser = getLocalUser(irc, target)
|
||||
remoteirc = world.networkobjects[remotenet]
|
||||
remotechan = findRemoteChan(irc, remoteirc, channel)
|
||||
remotesource = getRemoteUser(irc, remoteirc, source, spawnIfMissing=False)
|
||||
if remotesource is None:
|
||||
irc.msg(source, 'Error: You must be in a common channel '
|
||||
'with %s to invite them to channels.' % \
|
||||
irc.users[target].nick,
|
||||
notice=True)
|
||||
elif remotechan is None:
|
||||
irc.msg(source, 'Error: You cannot invite someone to a '
|
||||
'channel not on their network!',
|
||||
notice=True)
|
||||
else:
|
||||
remoteirc.proto.inviteClient(remotesource, remoteuser,
|
||||
remotechan)
|
||||
utils.add_hook(handle_invite, 'INVITE')
|
||||
|
||||
@utils.add_cmd
|
||||
def linkacl(irc, source, args):
|
||||
"""ALLOW|DENY|LIST <channel> <remotenet>
|
||||
@ -1221,3 +1236,15 @@ def showuser(irc, source, args):
|
||||
relaychannels.append(''.join(relay))
|
||||
if relaychannels and (utils.isOper(irc, source) or u == source):
|
||||
irc.msg(source, "\x02Relay channels\x02: %s" % ' '.join(relaychannels))
|
||||
|
||||
@utils.add_cmd
|
||||
def save(irc, source, args):
|
||||
"""takes no arguments.
|
||||
|
||||
Saves the relay database to disk."""
|
||||
if utils.isOper(irc, source):
|
||||
exportDB()
|
||||
irc.msg(source, 'Done.')
|
||||
else:
|
||||
irc.msg(source, 'Error: You are not authenticated!')
|
||||
return
|
||||
|
||||
Loading…
Reference in New Issue
Block a user