from __future__ import annotations
import json
import socket
import ssl
import time
from abc import ABC, abstractmethod
from typing import TYPE_CHECKING, Dict, Generic, Iterable, Optional, Type, TypeVar
import weechat
from websocket import (
ABNF,
WebSocket,
WebSocketConnectionClosedException,
create_connection,
)
from slack.error import (
SlackApiError,
SlackError,
SlackRtmError,
store_and_format_exception,
)
from slack.log import print_error
from slack.proxy import Proxy
from slack.shared import shared
from slack.slack_api import SlackApi
from slack.slack_conversation import SlackConversation
from slack.slack_message import SlackMessage
from slack.slack_user import SlackBot, SlackUser, SlackUsergroup
from slack.task import Future, Task, create_task, gather, run_async
from slack.util import get_callback_name
if TYPE_CHECKING:
from slack_api.slack_bots_info import SlackBotInfo
from slack_api.slack_conversations_info import SlackConversationsInfo
from slack_api.slack_usergroups_info import SlackUsergroupInfo
from slack_api.slack_users_info import SlackUserInfo
from slack_rtm.slack_rtm_message import SlackRtmMessage
else:
SlackBotInfo = object
SlackConversationsInfo = object
SlackUsergroupInfo = object
SlackUserInfo = object
SlackItemClass = TypeVar(
"SlackItemClass", SlackConversation, SlackUser, SlackBot, SlackUsergroup
)
SlackItemInfo = TypeVar(
"SlackItemInfo",
SlackConversationsInfo,
SlackUserInfo,
SlackBotInfo,
SlackUsergroupInfo,
)
class SlackItem(
ABC, Generic[SlackItemClass, SlackItemInfo], Dict[str, Future[SlackItemClass]]
):
def __init__(self, workspace: SlackWorkspace, item_class: Type[SlackItemClass]):
super().__init__()
self.workspace = workspace
self._item_class = item_class
def __missing__(self, key: str):
self[key] = create_task(self._create_item(key))
return self[key]
async def initialize_items(self, item_ids: Iterable[str]):
item_ids_to_init = set(item_id for item_id in item_ids if item_id not in self)
if item_ids_to_init:
items_info_task = create_task(self._fetch_items_info(item_ids_to_init))
for item_id in item_ids_to_init:
self[item_id] = create_task(self._create_item(item_id, items_info_task))
async def _create_item(
self,
item_id: str,
items_info_task: Optional[Future[Dict[str, SlackItemInfo]]] = None,
) -> SlackItemClass:
if items_info_task:
items_info = await items_info_task
return self._create_item_from_info(items_info[item_id])
else:
return await self._item_class.create(self.workspace, item_id)
@abstractmethod
async def _fetch_items_info(
self, item_ids: Iterable[str]
) -> Dict[str, SlackItemInfo]:
raise NotImplementedError()
@abstractmethod
def _create_item_from_info(self, item_info: SlackItemInfo) -> SlackItemClass:
raise NotImplementedError()
class SlackConversations(SlackItem[SlackConversation, SlackConversationsInfo]):
def __init__(self, workspace: SlackWorkspace):
super().__init__(workspace, SlackConversation)
async def _fetch_items_info(
self, item_ids: Iterable[str]
) -> Dict[str, SlackConversationsInfo]:
responses = await gather(
*(
self.workspace.api.fetch_conversations_info(item_id)
for item_id in item_ids
)
)
return {
response["channel"]["id"]: response["channel"] for response in responses
}
def _create_item_from_info(
self, item_info: SlackConversationsInfo
) -> SlackConversation:
return self._item_class(self.workspace, item_info)
class SlackUsers(SlackItem[SlackUser, SlackUserInfo]):
def __init__(self, workspace: SlackWorkspace):
super().__init__(workspace, SlackUser)
async def _fetch_items_info(
self, item_ids: Iterable[str]
) -> Dict[str, SlackUserInfo]:
response = await self.workspace.api.fetch_users_info(item_ids)
return {info["id"]: info for info in response["users"]}
def _create_item_from_info(self, item_info: SlackUserInfo) -> SlackUser:
return self._item_class(self.workspace, item_info)
class SlackBots(SlackItem[SlackBot, SlackBotInfo]):
def __init__(self, workspace: SlackWorkspace):
super().__init__(workspace, SlackBot)
async def _fetch_items_info(
self, item_ids: Iterable[str]
) -> Dict[str, SlackBotInfo]:
response = await self.workspace.api.fetch_bots_info(item_ids)
return {info["id"]: info for info in response["bots"]}
def _create_item_from_info(self, item_info: SlackBotInfo) -> SlackBot:
return self._item_class(self.workspace, item_info)
class SlackUsergroups(SlackItem[SlackUsergroup, SlackUsergroupInfo]):
def __init__(self, workspace: SlackWorkspace):
super().__init__(workspace, SlackUsergroup)
async def _fetch_items_info(
self, item_ids: Iterable[str]
) -> Dict[str, SlackUsergroupInfo]:
response = await self.workspace.api.fetch_usergroups_info(list(item_ids))
return {info["id"]: info for info in response["results"]}
def _create_item_from_info(self, item_info: SlackUsergroupInfo) -> SlackUsergroup:
return self._item_class(self.workspace, item_info)
class SlackWorkspace:
def __init__(self, name: str):
self.name = name
self.config = shared.config.create_workspace_config(self.name)
self.api = SlackApi(self)
self._is_connected = False
self._connect_task: Optional[Task[None]] = None
self._ws: Optional[WebSocket] = None
self._hook_ws_fd: Optional[str] = None
self.conversations = SlackConversations(self)
self.open_conversations: Dict[str, SlackConversation] = {}
self.users = SlackUsers(self)
self.bots = SlackBots(self)
self.usergroups = SlackUsergroups(self)
def __repr__(self):
return f"{self.__class__.__name__}('{self.name}')"
@property
def is_connected(self):
return self._is_connected
@property
def is_connecting(self):
return self._connect_task is not None
@is_connected.setter
def is_connected(self, value: bool):
self._is_connected = value
weechat.bar_item_update("input_text")
async def connect(self) -> None:
if self.is_connected:
return
self._connect_task = create_task(self._connect())
await self._connect_task
self._connect_task = None
async def _connect(self) -> None:
try:
rtm_connect = await self.api.fetch_rtm_connect()
except SlackApiError as e:
print_error(
f'failed connecting to workspace "{self.name}": {e.response["error"]}'
)
return
self.id = rtm_connect["team"]["id"]
self.enterprise_id = rtm_connect["team"].get("enterprise_id")
self.my_user = await self.users[rtm_connect["self"]["id"]]
await self._connect_ws(rtm_connect["url"])
users_conversations_response = await self.api.fetch_users_conversations(
"public_channel,private_channel,mpim,im"
)
channels = users_conversations_response["channels"]
await self.conversations.initialize_items(channel["id"] for channel in channels)
for channel in channels:
conversation = await self.conversations[channel["id"]]
run_async(conversation.open_if_open())
self.is_connected = True
async def _connect_ws(self, url: str):
proxy = Proxy()
# TODO: Handle errors
self._ws = create_connection(
url,
self.config.network_timeout.value,
proxy_type=proxy.type,
http_proxy_host=proxy.address,
http_proxy_port=proxy.port,
http_proxy_auth=(proxy.username, proxy.password),
http_proxy_timeout=self.config.network_timeout.value,
)
self._hook_ws_fd = weechat.hook_fd(
self._ws.sock.fileno(),
1,
0,
0,
get_callback_name(self._ws_read_cb),
"",
)
self._ws.sock.setblocking(False)
def _ws_read_cb(self, data: str, fd: int) -> int:
if self._ws is None:
raise SlackError(self, "ws_read_cb called while _ws is None")
while True:
try:
opcode, recv_data = self._ws.recv_data(control_frame=True)
except ssl.SSLWantReadError:
# No more data to read at this time.
return weechat.WEECHAT_RC_OK
except (WebSocketConnectionClosedException, socket.error):
print("lost connection on receive, reconnecting")
run_async(self.reconnect())
return weechat.WEECHAT_RC_OK
if opcode == ABNF.OPCODE_PONG:
# TODO: Maybe record last time anything was received instead
self.last_pong_time = time.time()
return weechat.WEECHAT_RC_OK
elif opcode != ABNF.OPCODE_TEXT:
return weechat.WEECHAT_RC_OK
run_async(self._ws_recv(json.loads(recv_data.decode())))
async def _ws_recv(self, data: SlackRtmMessage):
try:
if data["type"] == "message":
if "subtype" in data and data["subtype"] == "message_changed":
pass
elif "subtype" in data and data["subtype"] == "message_deleted":
pass
elif "subtype" in data and data["subtype"] == "message_replied":
pass
else:
channel_id = data["channel"]
if channel_id in self.open_conversations:
channel = self.open_conversations[channel_id]
message = SlackMessage(channel, data)
await channel.add_message(message)
else:
weechat.prnt("", f"\t{self.name} received: {json.dumps(data)}")
except Exception as e:
slack_error = SlackRtmError(self, e, data)
print_error(store_and_format_exception(slack_error))
def ping(self):
if not self.is_connected:
raise SlackError(self, "Can't ping when not connected")
if self._ws is None:
raise SlackError(self, "is_connected is True while _ws is None")
try:
self._ws.ping()
# workspace.last_ping_time = time.time()
except (WebSocketConnectionClosedException, socket.error):
print("lost connection on ping, reconnecting")
run_async(self.reconnect())
async def reconnect(self):
self.disconnect()
await self.connect()
def disconnect(self):
self.is_connected = False
if self._connect_task:
self._connect_task.cancel()
if self._hook_ws_fd:
weechat.unhook(self._hook_ws_fd)
self._hook_ws_fd = None
if self._ws:
self._ws.close()
self._ws = None
