Split line_handler.py out in to different files for different categories

6 files changed, 881 insertions, 0 deletions

diff --git a/modules/line_handler/__init__.py b/modules/line_handler/__init__.py
new file mode 100644
index 00000000..ef4e617b
--- /dev/null
+++ b/modules/line_handler/__init__.py
@@ -0,0 +1,257 @@
+import enum
+from src import ModuleManager, utils
+from . import channel, core, ircv3, message, user
+
+LABELED_BATCH = {
+    "labeled-response": "label",
+    "draft/labeled-response": "draft/label"
+}
+
+class Module(ModuleManager.BaseModule):
+    def _handle(self, server, line):
+        hooks = self.events.on("raw.received").on(line.command).get_hooks()
+        default_events = []
+        for hook in hooks:
+            default_events.append(hook.kwargs.get("default_event", False))
+        default_event = any(default_events)
+
+        kwargs = {"args": line.args, "tags": line.tags, "server": server,
+            "prefix": line.prefix, "direction": utils.Direction.RECV}
+
+        self.events.on("raw.received").on(line.command).call_unsafe(**kwargs)
+        if default_event or not hooks:
+            self.events.on("received").on(line.command).call(**kwargs)
+
+    @utils.hook("raw.received")
+    def handle_raw(self, event):
+        line = utils.irc.parse_line(event["line"])
+        if "batch" in line.tags and line.tags["batch"] in event[
+                "server"].batches:
+            server.batches[tag["batch"]].lines.append(line)
+        else:
+            self._handle(event["server"], line)
+
+    @utils.hook("raw.send")
+    def handle_send(self, event):
+        line = utils.irc.parse_line(event["line"])
+        self.events.on("raw.send").on(line.command).call_unsafe(
+            args=line.args, tags=line.tags, server=event["server"],
+            direction=utils.Direction.SEND)
+
+    # ping from the server
+    @utils.hook("raw.received.ping")
+    def ping(self, event):
+        core.ping(event)
+
+    @utils.hook("raw.received.error")
+    def error(self, event):
+        self.log.error("ERROR received: %s", [event["args"][0]])
+    @utils.hook("raw.received.fail")
+    def fail(self, event):
+        command = event["args"][0]
+        error_code = event["args"][1]
+        context = event["args"][2:-1]
+        description = event["args"][-1]
+
+        self.log.warn("FAIL (%s %s) received: %s" %
+            (command, error_code, description))
+        self.events.on("received.fail").call(command=command,
+            error_code=error_code, context=context, description=description)
+
+    # first numeric line the server sends
+    @utils.hook("raw.received.001", default_event=True)
+    def handle_001(self, event):
+        core.handle_001(event)
+
+    # server telling us what it supports
+    @utils.hook("raw.received.005")
+    def handle_005(self, event):
+        core.handle_005(self.events, event)
+
+    # whois respose (nickname, username, realname, hostname)
+    @utils.hook("raw.received.311", default_event=True)
+    def handle_311(self, event):
+        user.handle_311(event)
+
+    # on-join channel topic line
+    @utils.hook("raw.received.332")
+    def handle_332(self, event):
+        channels.handle_332(self.events, event)
+
+    # channel topic changed
+    @utils.hook("raw.received.topic")
+    def topic(self, event):
+        channels.topic(self.events, event)
+
+    # on-join channel topic set by/at
+    @utils.hook("raw.received.333")
+    def handle_333(self, event):
+        channel.handle_333(self.events, event)
+
+    # /names response, also on-join user list
+    @utils.hook("raw.received.353", default_event=True)
+    def handle_353(self, event):
+        channel.handle_353(event)
+
+    # on-join user list has finished
+    @utils.hook("raw.received.366", default_event=True)
+    def handle_366(self, event):
+        channel.handle_366(event)
+
+    @utils.hook("raw.received.375")
+    def motd_start(self, event):
+        core.motd_start(event)
+
+    @utils.hook("raw.received.372")
+    def motd_line(self, event):
+        core.motd_line(event)
+
+    # on user joining channel
+    @utils.hook("raw.received.join")
+    def join(self, event):
+        channel.join(self.events, event)
+
+    # on user parting channel
+    @utils.hook("raw.received.part")
+    def part(self, event):
+        channel.part(self.events, event)
+
+    # unknown command sent by us, oops!
+    @utils.hook("raw.received.421", default_event=True)
+    def handle_421(self, event):
+        self.bot.log.warn("We sent an unknown command: %s", [event["args"][1]])
+
+    # a user has disconnected!
+    @utils.hook("raw.received.quit")
+    @utils.hook("raw.send.quit")
+    def quit(self, event):
+        user.quit(self.events, event)
+
+    # the server is telling us about its capabilities!
+    @utils.hook("raw.received.cap")
+    def cap(self, event):
+        ircv3.cap(self.events, event)
+
+    # the server is asking for authentication
+    @utils.hook("raw.received.authenticate")
+    def authenticate(self, event):
+        ircv3.authenticate(self.events, event)
+
+    # someone has changed their nickname
+    @utils.hook("raw.received.nick")
+    def nick(self, event):
+        user.nick(self.events, event)
+
+    # something's mode has changed
+    @utils.hook("raw.received.mode")
+    def mode(self, event):
+        core.mode(self.events, event)
+
+    # someone (maybe me!) has been invited somewhere
+    @utils.hook("raw.received.invite")
+    def invite(self, event):
+        core.invite(self.events, event)
+
+    # we've received/sent a message
+    @utils.hook("raw.received.privmsg")
+    @utils.hook("raw.send.privmsg")
+    def privmsg(self, event):
+        message.privmsg(self.events, event)
+
+    # we've received/sent a notice
+    @utils.hook("raw.received.notice")
+    @utils.hook("raw.send.notice")
+    def notice(self, event):
+        message.notice(self.events, event)
+
+    # IRCv3 TAGMSG, used to send tags without any other information
+    @utils.hook("raw.received.tagmsg")
+    def tagmsg(self, event):
+        message.tagmsg(self.events, event)
+
+    # IRCv3 AWAY, used to notify us that a client we can see has changed /away
+    @utils.hook("raw.received.away")
+    def away(self, event):
+        user.away(self.events, event)
+
+    @utils.hook("raw.received.batch")
+    def batch(self, event):
+        identifier = event["args"][0]
+        modifier, identifier = identifier[0], identifier[1:]
+        batch_type = event["args"][1]
+
+        if modifier == "+":
+            event["server"].batches[identifier] = utils.irc.IRCRecvBatch(
+                identifier, batch_type, event["tags"])
+        else:
+            batch = event["server"].batches[identifier]
+            del event["server"].batches[identifier]
+
+            add_tags = {}
+            if batch.type in LABELED_BATCH.keys():
+                tag_name = LABELED_BATCH[batch.type]
+                add_tags[tag_name] = batch.tags[tag_name]
+
+            for line in batch.lines:
+                if add_tags:
+                    line.tags.update(add_tags)
+                self._handle(line)
+
+    # IRCv3 CHGHOST, a user's username and/or hostname has changed
+    @utils.hook("raw.received.chghost")
+    def chghost(self, event):
+        user.chghost(event)
+
+    # IRCv3 SETNAME, to change a user's realname
+    @utils.hook("raw.received.setname")
+    def setname(self, event):
+        user.setname(event)
+
+    @utils.hook("raw.received.account")
+    def account(self, event):
+        user.account(self.events, event)
+
+    # response to a WHO command for user information
+    @utils.hook("raw.received.352", default_event=True)
+    def handle_352(self, event):
+        core.handle_352(event)
+
+    # response to a WHOX command for user information, including account name
+    @utils.hook("raw.received.354", default_event=True)
+    def handle_354(self, event):
+        core.handle_354(event)
+
+
+    # response to an empty mode command
+    @utils.hook("raw.received.324", default_event=True)
+    def handle_324(self, event):
+        channel.handle_324(event)
+
+    # channel creation unix timestamp
+    @utils.hook("raw.received.329", default_event=True)
+    def handle_329(self, event):
+        channel.handle_329(event)
+
+    # nickname already in use
+    @utils.hook("raw.received.433", default_event=True)
+    def handle_433(self, event):
+        core.handle_433(event)
+
+    # we need a registered nickname for this channel
+    @utils.hook("raw.received.477", default_event=True)
+    def handle_477(self, event):
+        channel_name = event["server"].irc_lower(event["args"][1])
+        if channel_name in event["server"].channels:
+            key = event["server"].attempted_join[channel_name]
+            self.timers.add("rejoin", 5, channel_name=channe_name, key=key,
+                server_id=event["server"].id)
+
+    # someone's been kicked from a channel
+    @utils.hook("raw.received.kick")
+    def kick(self, event):
+        channel.kick(self.events, event)
+
+    # a channel has been renamed
+    @utils.hook("raw.received.rename")
+    def rename(self, event):
+        channel.rename(self.events, event)
diff --git a/modules/line_handler/channel.py b/modules/line_handler/channel.py
new file mode 100644
index 00000000..80f42aaa
--- /dev/null
+++ b/modules/line_handler/channel.py
@@ -0,0 +1,159 @@
+from src import utils
+
+def handle_332(events, event):
+    channel = event["server"].channels.get(event["args"][1])
+    topic = event["args"].get(2)
+    channel.set_topic(topic)
+    events.on("received.332").call(channel=channel, server=event["server"],
+        topic=topic)
+
+def topic(events, event):
+    user = event["server"].get_user(event["prefix"].nickname)
+    channel = event["server"].channels.get(event["args"][0])
+    topic = event["args"].get(1)
+    channel.set_topic(topic)
+    events.on("received.topic", channel=channel, server=event["server"],
+        topic=topic, user=user)
+
+def handle_333(events, event):
+    channel = event["server"].channels.get(event["args"][1])
+
+    topic_setter_hostmask = event["args"][2]
+    topic_setter = utils.irc.seperate_hostmask(topic_setter_hostmask)
+    topic_time = int(event["args"][3]) if event["args"][3].isdigit() else None
+
+    channel.set_topic_setter(topic_setter.nickname, topic_setter.username,
+        topic_setter.hostname)
+    channel.set_topic_time(topic_time)
+    events.on("received.333", channel=channel, setter=topic_setter.nickname,
+        set_at=topic_time, server=event["server"])
+
+def handle_353(event):
+    channel = event["server"].channels.get(event["args"][2])
+    nicknames = event["args"].get(3).split()
+    for nickname in nicknames:
+        modes = set([])
+
+        while nickname[0] in event["server"].prefix_symbols:
+            modes.add(event["server"].prefix_symbols[nickname[0]])
+            nickname = nickname[1:]
+
+        if "userhost-in-names" in event["server"].agreed_capabilities:
+            hostmask = utils.irc.seperate_hostmask(nickname)
+            nickname = hostmask.nickname
+            user = event["server"].get_user(hostmask.nickname)
+            user.username = hostmask.username
+            user.hostname = hostmask.hostname
+        else:
+            user = event["server"].get_user(nickname)
+        user.join_channel(channel)
+        channel.add_user(user)
+
+        for mode in modes:
+            channel.add_mode(mode, nickname)
+
+def handle_366(event):
+    event["server"].send_whox(event["args"][1], "n", "ahnrtu", "111")
+
+def join(events, event):
+    account = None
+    realname = None
+    channel_name = event["args"][0]
+
+    if len(event["args"]) == 3:
+        if not event["args"][1] == "*":
+            account = event["args"][1]
+        realname = event["args"][2]
+
+    if not event["server"].is_own_nickname(event["prefix"].nickname):
+        channel = event["server"].channels.get(channel_name)
+        user = event["server"].get_user(event["prefix"].nickname)
+        if not user.username and not user.hostname:
+            user.username = event["prefix"].username
+            user.hostname = event["prefix"].hostname
+
+        if account:
+            user.identified_account = account
+            user.identified_account_id = event["server"].get_user(
+                account).get_id()
+        if realname:
+            user.realname = realname
+
+        channel.add_user(user)
+        user.join_channel(channel)
+        events.on("received.join", channel=channel, user=user,
+            server=event["server"], account=account, realname=realname)
+    else:
+        channel = event["server"].channels.add(channel_name)
+        if channel.name in event["server"].attempted_join:
+            del event["server"].attempted_join[channel.name]
+        events.on("self.join").call(channel=channel, server=event["server"],
+            account=account, realname=realname)
+        channel.send_mode()
+
+def part(events, event):
+    channel = event["server"].channels.get(event["args"][0])
+    reason = event["args"].get(1)
+
+    if not event["server"].is_own_nickname(event["prefix"].nickname):
+        user = event["server"].get_user(event["prefix"].nickname)
+
+        events.on("received.part", channel=channel, reason=reason,  user=user,
+            server=event["server"])
+
+        channel.remove_user(user)
+        user.part_channel(channel)
+        if not len(user.channels):
+            event["server"].remove_user(user)
+    else:
+        events.on("self.part").call(channel=channel, reason=reason,
+            server=event["server"])
+        event["server"].channels.remove(channel)
+
+def handle_324(event):
+    channel = event["server"].channels.get(event["args"][1])
+    modes = event["args"][2]
+    if modes[0] == "+" and modes[1:]:
+        for mode in modes[1:]:
+            if mode in event["server"].channel_modes:
+                channel.add_mode(mode)
+
+def handle_329(event):
+    channel = event["server"].channels.get(event["args"][1])
+    channel.creation_timestamp = int(event["args"][2])
+
+def handle_477(timers, event):
+    channel_name = event["server"].irc_lower(event["args"][1])
+    if channel_name in event["server"].channels:
+        key = event["server"].attempted_join[channel_name]
+        timers.add("rejoin", 5, channel_name=channe_name, key=key,
+            server_id=event["server"].id)
+
+def kick(events, event):
+    user = event["server"].get_user(event["prefix"].nickname)
+    target = event["args"][1]
+    channel = event["server"].channels.get(event["args"][0])
+    reason = event["args"].get(2)
+
+    if not event["server"].is_own_nickname(target):
+        target_user = event["server"].get_user(target)
+        events.on("received.kick").call(channel=channel, reason=reason,
+            target_user=target_user, user=user, server=event["server"])
+
+        channel.remove_user(target_user)
+        target_user.part_channel(channel)
+        if not len(target_user.channels):
+            event["server"].remove_user(target_user)
+    else:
+        event["server"].channels.remove(channel)
+        events.on("self.kick").call(channel=channel, reason=reason, user=user,
+            server=event["server"])
+
+def rename(events, event):
+    old_name = event["args"][0]
+    new_name = event["args"][1]
+    channel = event["server"].channels.get(old_name)
+
+    event["server"].channels.rename(old_name, new_name)
+    events.on("received.rename").call(channel=channel, old_name=old_name,
+        new_name=new_name, reason=event["args"].get(2), server=event["server"])
diff --git a/modules/line_handler/core.py b/modules/line_handler/core.py
new file mode 100644
index 00000000..78a0c479
--- /dev/null
+++ b/modules/line_handler/core.py
@@ -0,0 +1,134 @@
+import codecs, re
+
+RE_ISUPPORT_ESCAPE = re.compile(r"\\x(\d\d)", re.I)
+RE_MODES = re.compile(r"[-+]\w+")
+
+def ping(event):
+    event["server"].send_pong(event["args"][0])
+
+def handle_001(event):
+    event["server"].socket.set_write_throttling(True)
+    event["server"].name = event["prefix"].hostmask
+    event["server"].set_own_nickname(event["args"][0])
+    event["server"].send_whois(event["server"].nickname)
+
+def handle_005(events, event):
+    isupport_list = event["args"][1:-1]
+    isupport = {}
+
+    for i, item in enumerate(isupport_list):
+        key, sep, value = item.partition("=")
+        if value:
+            for match in RE_ISUPPORT_ESCAPE.finditer(value):
+                char = codecs.decode(match.group(1), "hex").decode("ascii")
+                value.replace(match.group(0), char)
+
+        if sep:
+            isupport[key] = value
+        else:
+            isupport[key] = None
+    event["server"].isupport.update(isupport)
+
+    if "NAMESX" in isupport and not "multi-prefix" in event[
+            "server"].agreed_capabilities:
+        event["server"].send("PROTOCTL NAMESX")
+
+    if "PREFIX" in isupport:
+        modes, symbols = isupport["PREFIX"][1:].split(")", 1)
+        event["server"].prefix_symbols.clear()
+        event["server"].prefix_modes.clear()
+        for symbol, mode in zip(symbols, modes):
+            event["server"].prefix_symbols[symbol] = mode
+            event["server"].prefix_modes[mode] = symbol
+
+    if "CHANMODES" in isupport:
+        modes = isupport["CHANMODES"].split(",", 3)
+        event["server"].channel_list_modes = list(modes[0])
+        event["server"].channel_paramatered_modes = list(modes[1])
+        event["server"].channel_setting_modes = list(modes[2])
+        event["server"].channel_modes = list(modes[3])
+    if "CHANTYPES" in isupport:
+        event["server"].channel_types = list(isupport["CHANTYPES"])
+    if "CASEMAPPING" in isupport:
+        event["server"].case_mapping = isupport["CASEMAPPING"]
+
+    events.on("received.005").call(isupport=isupport,
+        server=event["server"])
+
+def motd_start(event):
+    event["server"].motd_lines.clear()
+    event["server"].motd_lines.append(event["args"][1])
+def motd_line(event):
+    event["server"].motd_lines.append(event["args"][1])
+
+def mode(events, event):
+    user = event["server"].get_user(event["prefix"].nickname)
+    target = event["args"][0]
+    is_channel = target[0] in event["server"].channel_types
+    if is_channel:
+        channel = event["server"].channels.get(target)
+        remove = False
+        args  = event["args"][2:]
+        _args = args[:]
+        modes = RE_MODES.findall(event["args"][1])
+        for chunk in modes:
+            remove = chunk[0] == "-"
+            for mode in chunk[1:]:
+                if mode in event["server"].channel_modes:
+                    channel.change_mode(remove, mode)
+                elif mode in event["server"].prefix_modes and len(args):
+                    channel.change_mode(remove, mode, args.pop(0))
+                elif (mode in event["server"].channel_list_modes or
+                        mode in event["server"].channel_paramatered_modes):
+                    args.pop(0)
+                elif not remove:
+                    args.pop(0)
+        events.on("received.mode.channel").call(modes=modes, mode_args=_args,
+            channel=channel, server=event["server"], user=user)
+    elif event["server"].is_own_nickname(target):
+        modes = RE_MODES.findall(event["args"][1])
+        for chunk in modes:
+            remove = chunk[0] == "-"
+            for mode in chunk[1:]:
+                event["server"].change_own_mode(remove, mode)
+        events.on("self.mode").call(modes=modes, server=event["server"])
+        event["server"].send_who(event["server"].nickname)
+
+def invite(events, event):
+    target_channel = event["args"][1]
+    user = event["server"].get_user(event["prefix"].nickname)
+    target_user = event["server"].get_user(event["args"][0])
+    events.on("received.invite").call(user=user, target_channel=target_channel,
+        server=event["server"], target_user=target_user)
+
+def handle_352(event):
+    nickname = event["args"][5]
+    if not event["server"].is_own_nickname(nickname):
+        target = event["server"].get_user(nickname)
+    else:
+        target = event["server"]
+    target.username = event["args"][2]
+    target.hostname = event["args"][3]
+
+def handle_354(event):
+    if event["args"][1] == "111":
+        nickname = event["args"][4]
+
+        if not event["server"].is_own_nickname(nickname):
+            target = event["server"].get_user(nickname)
+
+            account = event["args"][5]
+            if not account == "0":
+                target.identified_account = account
+            else:
+                target.identified_account = None
+        else:
+            target = event["server"]
+
+        target.username = event["args"][2]
+        target.hostname = event["args"][3]
+        target.realname = event["args"][6]
+
+def handle_433(event):
+    new_nick = "%s|" % event["server"].connection_params.nickname
+    event["server"].send_nick(new_nick)
diff --git a/modules/line_handler/ircv3.py b/modules/line_handler/ircv3.py
new file mode 100644
index 00000000..077b6ec3
--- /dev/null
+++ b/modules/line_handler/ircv3.py
@@ -0,0 +1,74 @@
+from src import utils
+
+CAPABILITIES = {"multi-prefix", "chghost", "invite-notify", "account-tag",
+    "account-notify", "extended-join", "away-notify", "userhost-in-names",
+    "draft/message-tags-0.2", "message-tags", "server-time", "cap-notify",
+    "batch", "draft/labeled-response", "draft/rename", "echo-message",
+    "draft/setname"}
+
+def _match_caps(capabilities):
+    return set(capabilities) & CAPABILITIES
+
+def cap(events, event):
+    capabilities = utils.parse.keyvalue(event["args"][-1])
+    subcommand = event["args"][1].lower()
+    is_multiline = len(event["args"]) > 3 and event["args"][2] == "*"
+
+    if subcommand == "ls":
+        event["server"].cap_started = True
+        event["server"].server_capabilities.update(capabilities)
+        if not is_multiline:
+            matched_caps = _match_caps(
+                list(event["server"].server_capabilities.keys()))
+            blacklisted_caps = event["server"].get_setting(
+                "blacklisted-caps", [])
+            matched_caps = list(
+                set(matched_caps)-set(blacklisted_caps))
+
+            event["server"].queue_capabilities(matched_caps)
+
+            events.on("received.cap.ls").call(
+                capabilities=event["server"].server_capabilities,
+                server=event["server"])
+
+            if event["server"].has_capability_queue():
+                event["server"].send_capability_queue()
+            else:
+                event["server"].send_capability_end()
+    elif subcommand == "new":
+        capabilities_keys = capabilities.keys()
+        event["server"].server_capabilities.update(capabilities)
+
+        matched_caps = _match_caps(list(capabilities_keys))
+        event["server"].queue_capabilities(matched_caps)
+
+        events.on("received.cap.new").call(server=event["server"],
+            capabilities=capabilities)
+
+        if event["server"].has_capability_queue():
+            event["server"].send_capability_queue()
+    elif subcommand == "del":
+        for capability in capabilities.keys():
+            event["server"].agreed_capabilities.discard(capability)
+            del event["server"].server_capabilities[capability]
+
+        events.on("received.cap.del").call(server=event["server"],
+            capabilities=capabilities)
+    elif subcommand == "ack":
+        event["server"].agreed_capabilities.update(capabilities)
+        events.on("received.cap.ack").call(capabilities=capabilities,
+           server=event["server"])
+
+    if subcommand == "ack" or subcommand == "nak":
+        for capability in capabilities:
+            event["server"].requested_capabilities.remove(capability)
+
+        if (event["server"].cap_started and
+                not event["server"].requested_capabilities and
+                not event["server"].waiting_for_capabilities()):
+            event["server"].cap_started = False
+            event["server"].send_capability_end()
+
+def authenticate(events, event):
+    events.on("received.authenticate").call(message=event["args"][0],
+        server=event["server"])
diff --git a/modules/line_handler/message.py b/modules/line_handler/message.py
new file mode 100644
index 00000000..cdea31c0
--- /dev/null
+++ b/modules/line_handler/message.py
@@ -0,0 +1,168 @@
+from src import utils
+
+def _from_self(server, direction, prefix):
+    if direction == utils.Direction.SEND:
+        if "echo-message" in server.agreed_capabilities:
+            return None
+        else:
+            return True
+    else:
+        if prefix:
+            return server.is_own_nickname(prefix.nickname)
+        else:
+            return False
+
+def privmsg(events, event):
+    from_self = _from_self(event["server"], event["direction"],
+        event.get("prefix", None))
+    if from_self == None:
+        return
+
+    user = None
+    if "prefix" in event and not from_self:
+        user = event["server"].get_user(event["prefix"].nickname)
+
+    message = event["args"][1]
+    target = event["args"][0]
+
+    # strip prefix_symbols from the start of target, for when people use
+    # e.g. 'PRIVMSG +#channel :hi' which would send a message to only
+    # voiced-or-above users
+    statusmsg = []
+    while target[0] in event["server"].prefix_symbols.keys():
+        statusmsg.append(target[0])
+        target = target[1:]
+
+    channel = None
+    if target[0] in event["server"].channel_types:
+        if not target in event["server"].channels:
+            return
+        channel = event["server"].channels.get(target)
+
+    action = False
+    event_type = "message"
+    ctcp_message = utils.irc.parse_ctcp(message)
+    if ctcp_message:
+        message = ctcp_message.message
+        event_type = "ctcp.%s" % ctcp_message.command
+        if ctcp_message.command == "ACTION":
+            action = True
+            message = ctcp_message.message
+
+    if user and "account" in event["tags"]:
+        user.identified_account = event["tags"]["account"]
+        user.identified_account_id = event["server"].get_user(
+            event["tags"]["account"]).get_id()
+
+    kwargs = {"message": message, "message_split": message.split(),
+        "server": event["server"], "tags": event["tags"],
+        "action": action}
+
+    direction = "send" if from_self else "received"
+    context = "channel" if channel else "private"
+    hook = events.on(direction).on(event_type).on(context)
+
+    user_nickname = None
+    if user:
+        user_nickname = None if from_self else user.nickname
+
+    if channel:
+        hook.call(user=user, channel=channel, statusmsg=statusmsg, **kwargs)
+        channel.buffer.add_message(user_nickname, message, action,
+            event["tags"], user==None)
+    elif event["server"].is_own_nickname(target):
+        hook.call(user=user, **kwargs)
+        user.buffer.add_message(user_nickname, message, action,
+            event["tags"], False)
+    elif from_self:
+        # a message we've sent to a user
+        user = event["server"].get_user(target)
+        hook.call(user=user, **kwargs)
+        user.buffer.add_message(user_nickname, message, action,
+            event["tags"], True)
+
+def notice(events, event):
+    from_self = _from_self(event["server"], event["direction"],
+        event.get("prefix", None))
+    if from_self == None:
+        return
+
+    message = event["args"][1]
+    message_split = message.split(" ")
+    target = event["args"][0]
+
+    if "prefix" in event and (
+            not event["prefix"] or
+            not event["server"].name or
+            event["prefix"].hostmask == event["server"].name or
+            target == "*"):
+        if event["prefix"]:
+            event["server"].name = event["prefix"].hostmask
+
+        events.on("received.server-notice").call(message=message,
+            message_split=message_split, server=event["server"])
+    else:
+        user = None
+        if "prefix" in event and not from_self:
+            user = event["server"].get_user(event["prefix"].nickname)
+
+        channel = None
+        if target[0] in event["server"].channel_types:
+            channel = event["server"].channels.get(target)
+
+        direction = "send" if from_self else "received"
+        context = "channel" if channel else "private"
+        hook = events.on(direction).on("notice").on(context)
+
+        user_nickname = None
+        if user:
+            user_nickname = None if from_self else user.nickname
+
+        kwargs = {"message": message, "message_split": message_split,
+            "server": event["server"], "tags": event["tags"]}
+
+        if channel:
+            hook.call(user=user, channel=channel, **kwargs)
+            channel.buffer.add_notice(user_nickname, message, event["tags"],
+                user==None)
+        elif event["server"].is_own_nickname(target):
+            hook.call(user=user, **kwargs)
+            user.buffer.add_notice(user_nickname, message, event["tags"],
+                False)
+        elif from_self:
+            # a notice we've sent to a user
+            user = event["server"].get_user(target)
+            hook.call(user=user, **kwargs)
+            user.buffer.add_notice(user_nickname, message, event["tags"],
+                True)
+
+# IRCv3 TAGMSG, used to send tags without any other information
+@utils.hook("raw.received.tagmsg")
+def tagmsg(events, event):
+    from_self = _from_self(event["server"], event["direction"],
+        event.get("prefix", None))
+    if from_self == None:
+        return
+
+    user = None
+    if "prefix" in event and not from_self:
+        user = event["server"].get_user(event["prefix"].nickname)
+
+    target = event["args"][0]
+    channel = None
+    if target[0] in event["server"].channel_types:
+        channel = event["server"].channels.get(target)
+
+    direction = "send" if from_self else "received"
+    context = "channel" if channel else "private"
+    hook = events.on(direction).on("tagmsg").on(context)
+
+    kwargs = {"server": event["server"], "tags": event["tags"]}
+
+    if channel:
+        hook.call(user=user, channel=channel, **kwargs)
+    elif event["server"].is_own_nickname(taget):
+        hook.call(user=user, **kwargs)
+    elif from_self:
+        user = event["server"].get_user(target)
+        hook.call(user=user, **kwargs)
diff --git a/modules/line_handler/user.py b/modules/line_handler/user.py
new file mode 100644
index 00000000..f9f14af6
--- /dev/null
+++ b/modules/line_handler/user.py
@@ -0,0 +1,89 @@
+from src import utils
+
+def handle_311(event):
+    nickname = event["args"][1]
+    if event["server"].is_own_nickname(nickname):
+        target = event["server"]
+    else:
+        target = event["server"].get_user(nickname)
+    target.username = event["args"][2]
+    target.hostname = event["args"][3]
+    target.realname = event["args"][4]
+
+def quit(events, event):
+    nickname = None
+    if event["direction"] == utils.Direction.RECV:
+        nickname = event["prefix"].nickname
+    reason = event["args"].get(0)
+
+    if event["direction"] == utils.Direction.RECV:
+        nickname = event["prefix"].nickname
+        if (not event["server"].is_own_nickname(nickname) and
+                not event["prefix"].hostmask == "*"):
+            user = event["server"].get_user(nickname)
+            event["server"].remove_user(user)
+            events.on("received.quit").call(reason=reason, user=user,
+                server=event["server"])
+        else:
+            event["server"].disconnect()
+    else:
+        events.on("send.quit").call(reason=reason, server=event["server"])
+
+def nick(events, event):
+    new_nickname = event["args"].get(0)
+    if not event["server"].is_own_nickname(event["prefix"].nickname):
+        user = event["server"].get_user(event["prefix"].nickname)
+        old_nickname = user.nickname
+        user.set_nickname(new_nickname)
+        event["server"].change_user_nickname(old_nickname, new_nickname)
+
+        events.on("received.nick").call(new_nickname=new_nickname,
+            old_nickname=old_nickname, user=user, server=event["server"])
+    else:
+        old_nickname = event["server"].nickname
+        event["server"].set_own_nickname(new_nickname)
+
+        events.on("self.nick").call(server=event["server"],
+            new_nickname=new_nickname, old_nickname=old_nickname)
+
+def away(events, event):
+    user = event["server"].get_user(event["prefix"].nickname)
+    message = event["args"].get(0)
+    if message:
+        user.away = True
+        events.on("received.away.on").call(user=user, server=event["server"],
+            message=message)
+    else:
+        user.away = False
+        events.on("received.away.off").call(user=user, server=event["server"])
+
+def chghost(event):
+    nickname = event["prefix"].nickname
+    username = event["args"][0]
+    hostname = event["args"][1]
+
+    if not event["server"].is_own_nickname(nickname):
+        target = event["server"].get_user(nickname)
+    else:
+        target = event["server"]
+    target.username = username
+    target.hostname = hostname
+
+def setname(event):
+    user = event["server"].get_user(event["prefix"].nickname)
+    user.realname = event["args"][0]
+
+def account(events, event):
+    user = event["server"].get_user(event["prefix"].nickname)
+
+    if not event["args"][0] == "*":
+        user.identified_account = event["args"][0]
+        user.identified_account_id = event["server"].get_user(
+            event["args"][0]).get_id()
+        events.on("received.account.login").call(user=user,
+            server=event["server"], account=event["args"][0])
+    else:
+        user.identified_account = None
+        user.identified_account_id = None
+        events.on("received.account.logout").call(user=user,
+            server=event["server"])