Files
beaver_project/app-instance/backend/beaver/interfaces/channels/platforms/feishu.py

208 lines
7.1 KiB
Python

"""Feishu/Lark channel adapter."""
from __future__ import annotations
import json
from collections.abc import Callable
from typing import Any
from beaver.foundation.events import InboundMessage, OutboundMessage
from beaver.interfaces.channels.base import ChannelInboundSink
from .base import (
build_inbound_message,
chunk_text,
compact_media_summary,
config_bool,
config_list,
mark_unclaimed,
outbound_target,
)
EventRecorder = Callable[..., None]
class FeishuAdapter:
"""Feishu/Lark bot adapter with injectable client support."""
KIND = "feishu"
def __init__(
self,
*,
channel_id: str,
kind: str,
mode: str,
account_id: str,
display_name: str | None,
inbound_sink: ChannelInboundSink,
secrets: dict[str, Any] | None = None,
config: dict[str, Any] | None = None,
event_recorder: EventRecorder | None = None,
client: Any | None = None,
) -> None:
self.channel_id = channel_id
self.kind = kind
self.mode = mode
self.account_id = account_id
self.display_name = display_name
self.inbound_sink = inbound_sink
self.secrets = secrets or {}
self.config = config or {}
self.event_recorder = event_recorder
self._client = client
self.max_message_chars = int(self.config.get("maxMessageChars") or 4096)
async def start(self) -> None:
if self._client is not None:
return
if self.mode not in {"websocket", "webhook"}:
raise ValueError(f"Unsupported feishu mode: {self.mode}")
self._client = self._build_client()
async def stop(self) -> None:
close = getattr(self._client, "close", None)
if close is not None:
result = close()
if hasattr(result, "__await__"):
await result
async def handle_event_payload(self, payload: dict[str, Any]) -> None:
message = self._normalize_payload(payload)
if message is None:
return
await self.inbound_sink.accept_inbound(message)
async def send(self, message: OutboundMessage) -> None:
target = outbound_target(message)
if not target.peer_id:
mark_unclaimed(message)
return
client = self._require_client()
for chunk in chunk_text(message.content, max_chars=self.max_message_chars):
await client.send_text(receive_id_type="chat_id", receive_id=target.peer_id, text=chunk)
def _normalize_payload(self, payload: dict[str, Any]) -> InboundMessage | None:
event = payload.get("event") if isinstance(payload.get("event"), dict) else payload
message = event.get("message") if isinstance(event.get("message"), dict) else {}
sender = event.get("sender") if isinstance(event.get("sender"), dict) else {}
peer_id = _string_or_none(message.get("chat_id"))
if not peer_id:
return None
message_id = _string_or_none(message.get("message_id"))
message_type = str(message.get("message_type") or "unknown")
chat_type = str(message.get("chat_type") or "unknown")
peer_type = "dm" if chat_type == "p2p" else "group"
user_id = _sender_open_id(sender)
if peer_type == "dm" and not self._dm_allowed(user_id or peer_id):
return None
if peer_type == "group" and not self._group_allowed(peer_id, user_id):
return None
if peer_type == "group" and config_bool(self.config, "requireMentionInGroups", default=False):
if not self._message_mentions_bot(message):
return None
content = self._message_content(message_type, message)
if not content:
return None
metadata = {
"chat_id": peer_id,
"message_id": message_id,
"chat_type": chat_type,
"message_type": message_type,
}
return build_inbound_message(
channel_id=self.channel_id,
kind=self.kind,
account_id=self.account_id,
peer_id=peer_id,
peer_type=peer_type,
user_id=user_id,
message_id=message_id,
content=content,
metadata=metadata,
)
def _message_content(self, message_type: str, message: dict[str, Any]) -> str:
content = _parse_json_object(message.get("content"))
if message_type == "text":
return str(content.get("text") or "").strip()
file_name = _string_or_none(content.get("file_name") or content.get("name"))
return compact_media_summary(message_type, file_name=file_name)
def _message_mentions_bot(self, message: dict[str, Any]) -> bool:
bot_open_id = _string_or_none(self.config.get("botOpenId"))
if not bot_open_id:
return False
mentions = message.get("mentions")
if not isinstance(mentions, list):
return False
for mention in mentions:
if not isinstance(mention, dict):
continue
mention_id = mention.get("id") if isinstance(mention.get("id"), dict) else {}
if _string_or_none(mention_id.get("open_id")) == bot_open_id:
return True
return False
def _dm_allowed(self, identifier: str | None) -> bool:
allowlist = config_list(self.config, "allowFrom")
if not allowlist:
return True
return bool(identifier and identifier in allowlist)
def _group_allowed(self, peer_id: str | None, user_id: str | None) -> bool:
allowlist = config_list(self.config, "groupAllowFrom")
if not allowlist:
return True
return bool((peer_id and peer_id in allowlist) or (user_id and user_id in allowlist))
def _require_client(self) -> Any:
if self._client is None:
self._client = self._build_client()
return self._client
def _build_client(self) -> Any:
self._require_secret("appId")
self._require_secret("appSecret")
try:
import lark_oapi # noqa: F401
except ImportError as exc: # pragma: no cover - optional live dependency
raise RuntimeError("Install beaver-backend[feishu] to enable FeishuAdapter") from exc
raise RuntimeError("Feishu live client is not configured for direct construction")
def _require_secret(self, key: str) -> str:
value = self.secrets.get(key)
if not value:
raise ValueError(f"{key} is required")
return str(value)
def _parse_json_object(value: Any) -> dict[str, Any]:
if isinstance(value, dict):
return value
if not isinstance(value, str):
return {}
try:
parsed = json.loads(value)
except json.JSONDecodeError:
return {}
return parsed if isinstance(parsed, dict) else {}
def _sender_open_id(sender: dict[str, Any]) -> str | None:
sender_id = sender.get("sender_id") if isinstance(sender.get("sender_id"), dict) else {}
return _string_or_none(sender_id.get("open_id"))
def _string_or_none(value: Any) -> str | None:
if value is None:
return None
text = str(value).strip()
return text or None