266 lines
10 KiB
Python
266 lines
10 KiB
Python
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import asyncio
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import json
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import logging
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import time
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from fastapi import APIRouter, Request, Response
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from fastapi.responses import JSONResponse
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from yuxi.channel.extensions.intercom.constants import INTERCOM_WEBHOOK_TOPICS_HANDLED
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from yuxi.channel.extensions.intercom.format import html_to_text, markdown_to_html
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from yuxi.channel.extensions.intercom.gateway import IntercomGateway
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from yuxi.channel.extensions.intercom.handoff import HandoffDetector
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from yuxi.channel.extensions.intercom.monitor import IntercomMonitor
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from yuxi.channel.extensions.intercom.security import IntercomSecurity
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from yuxi.channel.extensions.intercom.session_guard import ConversationStateGuard
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from yuxi.channel.extensions.intercom.types import IntercomInboundEvent
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from yuxi.channel.runtime.manager import gateway
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from yuxi.channel.message.models import UnifiedMessage
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logger = logging.getLogger(__name__)
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router = APIRouter(prefix="/webhook/intercom", tags=["intercom"])
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_gateway_instance: IntercomGateway | None = None
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_security = IntercomSecurity()
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_session_guard = ConversationStateGuard()
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_handoff = HandoffDetector()
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def set_gateway_instance(gw: IntercomGateway) -> None:
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global _gateway_instance
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_gateway_instance = gw
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def _parse_inbound_event(payload: dict) -> IntercomInboundEvent | None:
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data = payload.get("data", {})
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item = data.get("item", {})
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topic = payload.get("topic", "")
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# Admin / operator events have different payload structure
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admin_topics = {
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"conversation.admin.closed",
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"conversation.admin.opened",
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"conversation.admin.snoozed",
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"conversation.admin.unsnoozed",
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"conversation.admin.assigned",
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"conversation.admin.replied",
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"conversation.admin.single.created",
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"conversation.operator.replied",
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}
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if topic in admin_topics:
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return _parse_admin_event(payload)
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# State-only events (deleted, priority updated, rating added, read)
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state_only_topics = {
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"conversation.deleted",
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"conversation.priority.updated",
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"conversation.rating.added",
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"conversation.read",
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"conversation_part.redacted",
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"conversation_part.tag.created",
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}
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if topic in state_only_topics:
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return _parse_state_event(payload)
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conversation_message = item.get("conversation_message") or item.get("source") or {}
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author = conversation_message.get("author", {})
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if not conversation_message and item.get("conversation_parts"):
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parts = item["conversation_parts"].get("conversation_parts", [])
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if parts:
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last_part = parts[-1]
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conversation_message = last_part
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author = last_part.get("author", {})
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if not author.get("id"):
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return None
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return IntercomInboundEvent(
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event_id=payload.get("id", ""),
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topic=topic,
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conversation_id=str(item.get("id", "")),
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conversation_state=item.get("state", "open"),
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message_id=str(conversation_message.get("id", "")),
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author_type=author.get("type", ""),
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author_id=str(author.get("id", "")),
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author_name=author.get("name", ""),
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author_email=author.get("email", ""),
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body_html=conversation_message.get("body", ""),
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attachments=conversation_message.get("attachments", []),
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created_at=conversation_message.get("created_at", 0),
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raw=payload,
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)
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def _parse_admin_event(payload: dict) -> IntercomInboundEvent | None:
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data = payload.get("data", {})
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item = data.get("item", {})
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topic = payload.get("topic", "")
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admin = item.get("admin", {}) or item.get("assignee", {}) or item.get("operator", {})
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return IntercomInboundEvent(
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event_id=payload.get("id", ""),
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topic=topic,
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conversation_id=str(item.get("id", "")),
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conversation_state=item.get("state", "open"),
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message_id="",
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author_type="admin",
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author_id=str(admin.get("id", "")),
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author_name=admin.get("name", ""),
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author_email=admin.get("email", ""),
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body_html="",
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attachments=[],
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created_at=0,
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raw=payload,
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)
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def _parse_state_event(payload: dict) -> IntercomInboundEvent | None:
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data = payload.get("data", {})
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item = data.get("item", {})
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return IntercomInboundEvent(
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event_id=payload.get("id", ""),
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topic=payload.get("topic", ""),
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conversation_id=str(item.get("id", "")),
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conversation_state=item.get("state", "open"),
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message_id="",
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author_type="",
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author_id="",
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body_html="",
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raw=payload,
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)
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@router.post("/{account_id}")
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async def intercom_webhook(
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request: Request,
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account_id: str = "default",
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) -> Response:
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if _gateway_instance is None:
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return JSONResponse({"error": "Gateway not initialized"}, status_code=503)
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raw_body = await request.body()
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entry = _gateway_instance.get_account(account_id)
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if not entry:
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return JSONResponse({"error": "Account not found"}, status_code=404)
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account = entry["account"]
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webhook_secret = account.get("webhook_secret", "")
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x_hub_signature = request.headers.get("X-Hub-Signature", "")
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if not _gateway_instance.verify_webhook_signature(raw_body, x_hub_signature, webhook_secret):
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logger.warning("Invalid webhook signature for account %s", account_id)
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return JSONResponse({"error": "Invalid signature"}, status_code=401)
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try:
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payload = json.loads(raw_body)
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except Exception:
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return JSONResponse({"error": "Invalid JSON"}, status_code=400)
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topic = payload.get("topic", "")
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if topic not in INTERCOM_WEBHOOK_TOPICS_HANDLED:
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return JSONResponse({"status": "ignored", "topic": topic})
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# Handle state change events
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state_change_topics = {
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"conversation.admin.closed",
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"conversation.admin.opened",
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"conversation.admin.snoozed",
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"conversation.admin.unsnoozed",
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}
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if topic in state_change_topics:
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item = payload.get("data", {}).get("item", {})
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logger.info("Conversation state change: %s for conv %s", topic, item.get("id"))
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return JSONResponse({"status": "state_updated"})
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event_id = payload.get("id", "")
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if _gateway_instance.is_duplicate(event_id):
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return JSONResponse({"status": "duplicate"})
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inbound_event = _parse_inbound_event(payload)
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if inbound_event is None:
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return JSONResponse({"status": "ignored", "reason": "parse_failed"})
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should_respond, reason = _session_guard.should_respond(inbound_event, account)
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if not should_respond:
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logger.info("Skipping event %s: %s (state=%s)", event_id, reason, inbound_event.conversation_state)
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return JSONResponse({"status": "skipped", "reason": reason})
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identity = _gateway_instance.get_identity(account_id)
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if identity and IntercomMonitor.is_echo(inbound_event, identity):
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return JSONResponse({"status": "ignored", "reason": "echo"})
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allowed, auth_reason = _security.authorize_dm(account, inbound_event.author_id)
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if not allowed:
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logger.info("DM blocked for contact %s: %s", inbound_event.author_id, auth_reason)
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return JSONResponse({"status": "blocked", "reason": auth_reason}, status_code=403)
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handoff_policy = account.get("handoff_policy", "ignore")
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client = _gateway_instance.get_client(account_id)
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bot_admin_id = identity.admin_id if identity else ""
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is_takeover = False
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if client and bot_admin_id:
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is_takeover = await _handoff.is_human_takeover(client, inbound_event.conversation_id, bot_admin_id)
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if not is_takeover:
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is_takeover = await _handoff.check_recent_admin_reply(client, inbound_event.conversation_id, bot_admin_id)
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if is_takeover:
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if handoff_policy == "ignore":
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logger.info("Handoff detected for conv %s, policy=ignore, skipping", inbound_event.conversation_id)
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return JSONResponse({"status": "skipped", "reason": "handoff_detected"})
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if handoff_policy == "note_only":
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logger.info("Handoff detected for conv %s, policy=note_only, sending note", inbound_event.conversation_id)
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if client:
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try:
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note_body = markdown_to_html(
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f"AI 建议回复（人工接管中）：\n\n{html_to_text(inbound_event.body_html)}"
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)
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await client.reply_conversation(
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inbound_event.conversation_id,
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note_body,
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message_type="note",
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reply_type="admin",
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admin_id=bot_admin_id,
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)
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except Exception:
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logger.warning(
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"Failed to send handoff note for conv %s", inbound_event.conversation_id, exc_info=True
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)
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return JSONResponse({"status": "note_only", "reason": "handoff_detected"})
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if handoff_policy == "continue":
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logger.info(
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"Handoff detected for conv %s, policy=continue, still responding",
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inbound_event.conversation_id,
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)
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last_ts = await _handoff.get_last_admin_reply_time(client, inbound_event.conversation_id, bot_admin_id)
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if last_ts and time.time() - last_ts < 30:
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logger.info("Recent human reply in conv %s, delaying AI response by 10s", inbound_event.conversation_id)
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await asyncio.sleep(10)
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processor = gateway._processor
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if processor is not None:
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msg = IntercomMonitor.convert_event(inbound_event, account_id)
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if msg is not None:
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asyncio.create_task(
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_dispatch_to_agent(processor, msg),
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name=f"intercom-agent-{account_id}-{inbound_event.conversation_id}",
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)
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else:
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logger.warning("Message processor not available, cannot dispatch")
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return JSONResponse({"status": "ok"})
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async def _dispatch_to_agent(processor, msg: UnifiedMessage) -> None:
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try:
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await asyncio.wait_for(processor.process(msg), timeout=120)
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except TimeoutError:
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logger.error("Agent response timeout for intercom:%s", msg.msg_id)
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except Exception:
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logger.exception("Failed to process Intercom message %s", msg.msg_id)
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