Files

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38 KiB
Python

"""Restart-safe automatic replies over Huihui's self-hosted BOXIM."""
import asyncio
import hashlib
import logging
import os
import re
import secrets
import time
from datetime import datetime, timedelta
from typing import Callable
from sqlalchemy.orm import Session
from models import (
Avatar,
ChatAttachment,
TakeoverCursor,
TakeoverMessage,
TakeoverReplyTask,
User,
)
from services.boxim_client import BoxIMClient, BoxIMError
from services.boxim_image_service import (
BoxIMImageError,
download_boxim_image,
parse_boxim_image_url,
)
from services.vision_service import ImageValidationError
logger = logging.getLogger(__name__)
ACTIVE_TASK_STATUSES = ("pending", "generating", "ready", "sending")
GENERATABLE_TASK_STATUSES = ("pending",)
MAX_PROMPT_LENGTH = 4000
DEFAULT_MAX_MESSAGE_AGE_SECONDS = 600
MAX_SEND_OVERDUE_SECONDS = 120
STUCK_LOCK_SECONDS = 90
TAKEOVER_PERMISSION = "takeover"
TAKEOVER_DELAY_KEY = "takeoverReplyDelaySeconds"
DEFAULT_REPLY_DELAY_SECONDS = 180
MIN_REPLY_DELAY_SECONDS = 3
MAX_REPLY_DELAY_SECONDS = 86_400
HUMAN_PAUSE_SECONDS = 600
RATE_LIMIT_WINDOW_SECONDS = 300
RATE_LIMIT_MAX_REPLIES = 5
AVATAR_LOCAL_ID_PREFIX = "880"
BOXIM_TEXT_MESSAGE_TYPE = 0
BOXIM_IMAGE_MESSAGE_TYPE = 1
BOXIM_IMAGE_PROMPT = "请看看这张图片。"
BOXIM_IMAGE_UNAVAILABLE_REPLY = "这张图片我暂时没看清,麻烦重新发送一张清晰的原图。"
IMAGE_CONTEXT_LOOKBACK_SECONDS = 1800
IMAGE_REFERENCE_LOOKBACK_SECONDS = 172_800
MAX_RECENT_IMAGE_CONTEXTS = 3
_IMAGE_REFERENCE_PATTERN = re.compile(
r"(?:图片|图像|照片|截图|这张图|刚才.{0,8}图|病例|病历|检查单|检验单|化验单|报告|影像|"
r"\b(?:image|photo|picture|screenshot|scan|report)\b)",
re.IGNORECASE,
)
def _utcnow() -> datetime:
return datetime.utcnow()
def _takeover_enabled(avatar: Avatar | None) -> bool:
if not avatar or avatar.status != "active":
return False
permissions = (avatar.config or {}).get("authorizationPermissions", [])
return isinstance(permissions, list) and TAKEOVER_PERMISSION in permissions
def _boxim_time(value, fallback: datetime) -> datetime:
try:
timestamp = float(value)
if timestamp > 10_000_000_000:
timestamp /= 1000
return datetime.utcfromtimestamp(timestamp)
except (TypeError, ValueError, OSError, OverflowError):
return fallback
def _numeric_id(value) -> int:
try:
return int(value)
except (TypeError, ValueError):
return 0
def _plain_text_reply(value: str) -> str:
"""BOXIM is plain text, so remove Markdown markers without damaging paragraphs."""
text = (value or "").replace("\r\n", "\n").replace("\r", "\n")
text = re.sub(r"```(?:\w+)?\n?(.*?)```", r"\1", text, flags=re.S)
text = re.sub(r"\*\*(.*?)\*\*|__(.*?)__", lambda m: m.group(1) or m.group(2), text)
text = re.sub(r"(?<!\*)\*([^*\n]+)\*(?!\*)", r"\1", text)
text = re.sub(r"`([^`]+)`", r"\1", text)
text = re.sub(r"^\s{0,3}#{1,6}\s*", "", text, flags=re.M)
lines = [line.strip() for line in text.split("\n")]
return "\n".join(line for line in lines if line).strip()
def _avatar_local_id(owner_id: str, trigger_message_id: str) -> str:
"""Build a deterministic BOXIM idempotency key that also marks avatar traffic."""
digest = hashlib.sha256(f"{owner_id}:{trigger_message_id}".encode("utf-8")).digest()
suffix = int.from_bytes(digest[:8], "big") % (10**15)
return f"{AVATAR_LOCAL_ID_PREFIX}{suffix:015d}"
def _is_avatar_local_id(value: str | None) -> bool:
local_id = str(value or "").strip()
return len(local_id) == 18 and local_id.isdigit() and local_id.startswith(AVATAR_LOCAL_ID_PREFIX)
def _configured_reply_delay(avatar: Avatar, fallback: int | None = None) -> int:
raw = (avatar.config or {}).get(
TAKEOVER_DELAY_KEY,
fallback if fallback is not None else DEFAULT_REPLY_DELAY_SECONDS,
)
if isinstance(raw, bool):
return DEFAULT_REPLY_DELAY_SECONDS
try:
delay = int(raw)
except (TypeError, ValueError):
return DEFAULT_REPLY_DELAY_SECONDS
if not MIN_REPLY_DELAY_SECONDS <= delay <= MAX_REPLY_DELAY_SECONDS:
return DEFAULT_REPLY_DELAY_SECONDS
return delay
def _event_prompt(event: TakeoverMessage) -> str:
if event.message_type == BOXIM_TEXT_MESSAGE_TYPE:
return event.content.strip()
if event.message_type == BOXIM_IMAGE_MESSAGE_TYPE:
return BOXIM_IMAGE_PROMPT
return ""
def _references_recent_image(value: str) -> bool:
return bool(_IMAGE_REFERENCE_PATTERN.search(value or ""))
class TakeoverService:
"""Poll BOXIM, honor the owner grace period, then generate and send one reply."""
def __init__(
self,
session_factory: Callable[[], Session],
boxim_client: BoxIMClient,
*,
reply_delay_seconds: int | None = None,
poll_concurrency: int = 8,
max_message_age_seconds: int = DEFAULT_MAX_MESSAGE_AGE_SECONDS,
now: Callable[[], datetime] = _utcnow,
):
self.session_factory = session_factory
self.boxim = boxim_client
self.reply_delay_seconds = reply_delay_seconds
self.poll_concurrency = max(1, min(int(poll_concurrency), 64))
self.max_message_age_seconds = max(60, int(max_message_age_seconds))
self.now = now
self._sessions: dict[str, dict] = {}
self._poll_lock = asyncio.Lock()
self._process_lock = asyncio.Lock()
self._persist_lock = asyncio.Lock()
async def poll_and_process_messages(self):
"""Run one complete cycle for callers that do not use the split scheduler."""
await self.poll_messages()
await self.process_reply_tasks()
async def poll_messages(self):
"""Fetch BOXIM events without blocking reply generation and dispatch."""
if self._poll_lock.locked():
return
async with self._poll_lock:
self._recover_stuck_tasks()
avatar_ids = self._enabled_avatar_ids()
self._cancel_disabled_tasks(set(avatar_ids))
self._ensure_takeover_cursors(avatar_ids)
semaphore = asyncio.Semaphore(self.poll_concurrency)
async def sync(avatar_id: str):
async with semaphore:
return await self._sync_avatar(avatar_id)
results = await asyncio.gather(
*(sync(avatar_id) for avatar_id in avatar_ids),
return_exceptions=True,
)
for avatar_id, result in zip(avatar_ids, results):
if isinstance(result, Exception):
logger.warning("BOXIM poll crashed for avatar %s: %s", avatar_id, result)
def _ensure_takeover_cursors(self, avatar_ids: list[str]):
"""Create durable cursors before concurrent network polling starts."""
if not avatar_ids:
return
db = self.session_factory()
try:
existing = {
row[0]
for row in db.query(TakeoverCursor.avatar_id)
.filter(TakeoverCursor.avatar_id.in_(avatar_ids))
.all()
}
avatars = (
db.query(Avatar.id, Avatar.owner_id)
.filter(
Avatar.id.in_(
[avatar_id for avatar_id in avatar_ids if avatar_id not in existing]
)
)
.all()
)
for avatar_id, owner_id in avatars:
db.add(TakeoverCursor(avatar_id=avatar_id, owner_id=owner_id))
if avatars:
db.commit()
finally:
db.close()
async def process_reply_tasks(self):
"""Generate and send replies independently from BOXIM's long poll."""
if self._process_lock.locked():
return
async with self._process_lock:
self._recover_stuck_tasks()
avatar_ids = set(self._enabled_avatar_ids())
self._cancel_disabled_tasks(avatar_ids)
await self._prepare_replies()
await self._dispatch_ready_replies()
def _enabled_avatar_ids(self) -> list[str]:
db = self.session_factory()
try:
avatars = (
db.query(Avatar)
.filter(Avatar.status == "active")
.order_by(Avatar.updated_at.desc(), Avatar.created_at.desc())
.all()
)
selected = {}
for avatar in avatars:
if _takeover_enabled(avatar) and avatar.owner_id not in selected:
selected[avatar.owner_id] = avatar.id
return list(selected.values())
finally:
db.close()
def _cancel_disabled_tasks(self, enabled_avatar_ids: set[str]):
db = self.session_factory()
try:
tasks = (
db.query(TakeoverReplyTask)
.filter(TakeoverReplyTask.status.in_(ACTIVE_TASK_STATUSES))
.all()
)
changed = False
for task in tasks:
if task.avatar_id not in enabled_avatar_ids:
task.status = "cancelled"
task.cancel_reason = "takeover_disabled"
task.locked_at = None
changed = True
if changed:
db.commit()
finally:
db.close()
def _recover_stuck_tasks(self):
db = self.session_factory()
try:
threshold = self.now() - timedelta(seconds=STUCK_LOCK_SECONDS)
tasks = (
db.query(TakeoverReplyTask)
.filter(
TakeoverReplyTask.status.in_(("generating", "sending")),
TakeoverReplyTask.locked_at.isnot(None),
TakeoverReplyTask.locked_at < threshold,
)
.all()
)
for task in tasks:
task.status = "pending" if task.status == "generating" else "ready"
task.locked_at = None
task.last_error = "上次处理意外中断,已自动恢复"
if tasks:
db.commit()
finally:
db.close()
async def _boxim_session(self, user: User) -> dict:
token_fingerprint = hashlib.sha256((user.huihui_token or "").encode()).hexdigest()
cached = self._sessions.get(user.id)
if (
cached
and cached["expires_at"] > time.monotonic()
and cached["token_fingerprint"] == token_fingerprint
):
return cached
token_data = await self.boxim.exchange_access_token(user.huihui_token)
access_token = token_data["accessToken"]
profile = await self.boxim.get_self(access_token)
try:
expires_in = int(token_data.get("accessTokenExpiresIn") or 3600)
except (TypeError, ValueError):
expires_in = 3600
if expires_in > 86_400:
expires_in //= 1000
cache_for = max(60, min(expires_in - 60, 3600))
cached = {
"access_token": access_token,
"boxim_owner_id": str(profile["id"]),
"expires_at": time.monotonic() + cache_for,
"token_fingerprint": token_fingerprint,
}
self._sessions[user.id] = cached
return cached
def _forget_boxim_session(self, user_id: str):
self._sessions.pop(user_id, None)
def _record_connection_failure(
self,
db: Session,
avatar: Avatar,
cursor: TakeoverCursor,
message: str,
*,
disable_takeover: bool,
):
cursor.last_error = message
cursor.last_polled_at = self.now()
if not disable_takeover:
return
permissions = (avatar.config or {}).get("authorizationPermissions", [])
avatar.config = {
**(avatar.config or {}),
"authorizationPermissions": [
permission
for permission in permissions
if permission != TAKEOVER_PERMISSION
],
}
tasks = (
db.query(TakeoverReplyTask)
.filter(
TakeoverReplyTask.avatar_id == avatar.id,
TakeoverReplyTask.status.in_(ACTIVE_TASK_STATUSES),
)
.all()
)
for task in tasks:
task.status = "cancelled"
task.cancel_reason = "connection_failed"
task.locked_at = None
async def _sync_avatar(self, avatar_id: str) -> bool:
db = self.session_factory()
try:
avatar = db.query(Avatar).filter(Avatar.id == avatar_id).first()
if not _takeover_enabled(avatar):
return False
user = db.query(User).filter(User.huihui_user_id == avatar.owner_id).first()
cursor = db.query(TakeoverCursor).filter(TakeoverCursor.avatar_id == avatar.id).first()
if not cursor:
cursor = TakeoverCursor(avatar_id=avatar.id, owner_id=avatar.owner_id)
db.add(cursor)
db.commit()
else:
# Release SQLite's read transaction before the long network poll.
db.commit()
if not user or not user.huihui_token:
self._record_connection_failure(
db,
avatar,
cursor,
"请重新登录会会生产账号后再开启主动接管",
disable_takeover=True,
)
db.commit()
return False
try:
session = await self._boxim_session(user)
owner_boxim_id = session["boxim_owner_id"]
if cursor.boxim_owner_id and cursor.boxim_owner_id != owner_boxim_id:
cursor.initialized = False
cursor.last_message_id = "0"
cursor.boxim_owner_id = owner_boxim_id
messages = await self.boxim.fetch_private_messages(
session["access_token"], cursor.last_message_id or "0"
)
except Exception as exc:
if isinstance(exc, BoxIMError) and exc.auth_error:
self._forget_boxim_session(user.id)
message = "BOXIM 授权已失效,请重新登录会会生产账号"
disable_takeover = True
else:
message = f"BOXIM 暂时连接失败:{str(exc)[:160]}"
disable_takeover = False
self._record_connection_failure(
db,
avatar,
cursor,
message,
disable_takeover=disable_takeover,
)
db.commit()
logger.warning(
"BOXIM sync failed for avatar %s (will_retry=%s): %s",
avatar.id,
not disable_takeover,
exc,
)
return False
messages.sort(key=lambda item: (_numeric_id(item.get("id")), item.get("sendTime") or 0))
priming = not bool(cursor.initialized)
max_message_id = _numeric_id(cursor.last_message_id)
read_receipts: dict[str, int] = {}
for message in messages:
message_id = _numeric_id(message.get("id"))
max_message_id = max(max_message_id, message_id)
send_id = str(message.get("sendId") or "")
recv_id = str(message.get("recvId") or "")
if recv_id == cursor.boxim_owner_id and send_id and message_id:
read_receipts[send_id] = max(read_receipts.get(send_id, 0), message_id)
# BOXIM publishes this HTTP state change to connected socket clients.
# Do it before advancing the cursor so a failed receipt is retried.
for peer_id, message_id in read_receipts.items():
await self.boxim.mark_private_messages_read(
session["access_token"], peer_id, message_id
)
# Keep SQLite write transactions short. The read-receipt request above
# can block on the network and must not hold the database write lock.
async with self._persist_lock:
for message in messages:
self._record_message(
db,
avatar,
cursor.boxim_owner_id,
message,
schedule_reply=not priming,
)
cursor.last_message_id = str(max_message_id)
cursor.initialized = True
cursor.last_polled_at = self.now()
cursor.last_error = ""
db.commit()
return True
except Exception:
db.rollback()
logger.exception("Failed to persist BOXIM messages for avatar %s", avatar_id)
return False
finally:
db.close()
def _record_message(
self,
db: Session,
avatar: Avatar,
boxim_owner_id: str,
message: dict,
*,
schedule_reply: bool,
):
message_id = str(message.get("id") or "").strip()
if not message_id:
return
local_id = str(message.get("localId") or "").strip() or None
if (
db.query(TakeoverMessage)
.filter(
TakeoverMessage.owner_id == avatar.owner_id,
TakeoverMessage.boxim_message_id == message_id,
)
.first()
):
return
send_id = str(message.get("sendId") or "")
recv_id = str(message.get("recvId") or "")
if send_id == boxim_owner_id:
direction, peer_id = "outgoing", recv_id
elif recv_id == boxim_owner_id:
direction, peer_id = "incoming", send_id
else:
return
if not peer_id:
return
now = self.now()
send_time = _boxim_time(message.get("sendTime"), now)
is_avatar = _is_avatar_local_id(local_id)
if not is_avatar and local_id:
is_avatar = bool(
db.query(TakeoverReplyTask)
.filter(
TakeoverReplyTask.boxim_local_id == local_id,
TakeoverReplyTask.status.in_(("ready", "sending", "sent")),
)
.first()
)
if not is_avatar:
is_avatar = bool(
db.query(TakeoverReplyTask)
.filter(
TakeoverReplyTask.boxim_sent_message_id == message_id,
TakeoverReplyTask.status == "sent",
)
.first()
)
event = TakeoverMessage(
avatar_id=avatar.id,
owner_id=avatar.owner_id,
boxim_message_id=message_id,
boxim_local_id=local_id,
peer_id=peer_id,
direction=direction,
message_type=int(message.get("type") or 0),
content=str(message.get("content") or ""),
is_avatar=is_avatar,
send_time=send_time,
)
db.add(event)
db.flush()
if direction == "outgoing":
if not is_avatar:
self._cancel_conversation(db, avatar.owner_id, peer_id, "owner_replied")
return
if not schedule_reply or event.message_type not in {
BOXIM_TEXT_MESSAGE_TYPE,
BOXIM_IMAGE_MESSAGE_TYPE,
}:
return
if event.message_type == BOXIM_TEXT_MESSAGE_TYPE and not event.content.strip():
return
if event.message_type == BOXIM_IMAGE_MESSAGE_TYPE:
try:
parse_boxim_image_url(
event.content,
base_url=getattr(self.boxim, "im_base_url", ""),
)
except BoxIMImageError as exc:
logger.warning(
"Ignored invalid BOXIM image message %s for avatar %s: %s",
message_id,
avatar.id,
exc,
)
return
if (now - send_time).total_seconds() > self.max_message_age_seconds:
logger.info(
"Ignored stale BOXIM message %s for avatar %s (age=%ss)",
message_id,
avatar.id,
int((now - send_time).total_seconds()),
)
return
if is_avatar:
self._cancel_conversation(db, avatar.owner_id, peer_id, "peer_avatar_message")
logger.info(
"Skipped BOXIM reply for avatar %s message %s: peer_avatar_message",
avatar.id,
message_id,
)
return
if self._human_pause_active(db, avatar.owner_id, peer_id, now):
self._cancel_conversation(db, avatar.owner_id, peer_id, "owner_active")
logger.info(
"Skipped BOXIM reply for avatar %s message %s: owner_active",
avatar.id,
message_id,
)
return
if self._conversation_rate_limited(db, avatar.owner_id, peer_id, now):
self._cancel_conversation(db, avatar.owner_id, peer_id, "rate_limited")
logger.info(
"Skipped BOXIM reply for avatar %s message %s: rate_limited",
avatar.id,
message_id,
)
return
self._schedule_reply(db, avatar, event)
@staticmethod
def _human_pause_active(db: Session, owner_id: str, peer_id: str, now: datetime) -> bool:
threshold = now - timedelta(seconds=HUMAN_PAUSE_SECONDS)
return bool(
db.query(TakeoverMessage.id)
.filter(
TakeoverMessage.owner_id == owner_id,
TakeoverMessage.peer_id == peer_id,
TakeoverMessage.direction == "outgoing",
TakeoverMessage.is_avatar.is_(False),
TakeoverMessage.send_time >= threshold,
)
.first()
)
@staticmethod
def _conversation_rate_limited(
db: Session,
owner_id: str,
peer_id: str,
now: datetime,
) -> bool:
threshold = now - timedelta(seconds=RATE_LIMIT_WINDOW_SECONDS)
return (
db.query(TakeoverReplyTask.id)
.filter(
TakeoverReplyTask.owner_id == owner_id,
TakeoverReplyTask.peer_id == peer_id,
TakeoverReplyTask.status == "sent",
TakeoverReplyTask.sent_at >= threshold,
)
.count()
>= RATE_LIMIT_MAX_REPLIES
)
@staticmethod
def _cancel_conversation(db: Session, owner_id: str, peer_id: str, reason: str):
tasks = (
db.query(TakeoverReplyTask)
.filter(
TakeoverReplyTask.owner_id == owner_id,
TakeoverReplyTask.peer_id == peer_id,
TakeoverReplyTask.status.in_(ACTIVE_TASK_STATUSES),
)
.all()
)
for task in tasks:
task.status = "cancelled"
task.cancel_reason = reason
task.locked_at = None
def _schedule_reply(self, db: Session, avatar: Avatar, event: TakeoverMessage):
active_tasks = (
db.query(TakeoverReplyTask)
.filter(
TakeoverReplyTask.owner_id == avatar.owner_id,
TakeoverReplyTask.peer_id == event.peer_id,
TakeoverReplyTask.status.in_(("pending", "generating", "ready")),
)
.order_by(TakeoverReplyTask.created_at.desc())
.all()
)
prompt_parts = []
source_ids = []
if active_tasks:
latest = active_tasks[0]
prompt_parts.append(latest.prompt)
source_ids.extend(latest.source_message_ids or [])
for task in active_tasks:
task.status = "cancelled"
task.cancel_reason = "newer_incoming_message"
task.locked_at = None
if event.message_type == BOXIM_TEXT_MESSAGE_TYPE:
for image_event in self._recent_unhandled_images(
db,
avatar,
event,
source_ids,
):
prompt_parts.append(_event_prompt(image_event))
source_ids.append(image_event.boxim_message_id)
prompt_parts.append(_event_prompt(event))
source_ids.append(event.boxim_message_id)
prompt = "\n".join(part for part in prompt_parts if part).strip()[-MAX_PROMPT_LENGTH:]
due_at = max(
event.send_time
+ timedelta(seconds=_configured_reply_delay(avatar, self.reply_delay_seconds)),
self.now(),
)
task_id = secrets.token_hex(16)
local_id = _avatar_local_id(avatar.owner_id, event.boxim_message_id)
db.add(
TakeoverReplyTask(
id=task_id,
avatar_id=avatar.id,
owner_id=avatar.owner_id,
peer_id=event.peer_id,
trigger_message_id=event.boxim_message_id,
source_message_ids=source_ids,
prompt=prompt,
status="pending",
scheduled_at=due_at,
boxim_local_id=str(local_id),
)
)
@staticmethod
def _recent_unhandled_images(
db: Session,
avatar: Avatar,
event: TakeoverMessage,
current_source_ids: list[str],
) -> list[TakeoverMessage]:
"""Recover missed images, or reuse a referenced image from the last two days."""
references_image = _references_recent_image(event.content)
lookback_seconds = (
IMAGE_REFERENCE_LOOKBACK_SECONDS
if references_image
else IMAGE_CONTEXT_LOOKBACK_SECONDS
)
threshold = event.send_time - timedelta(seconds=lookback_seconds)
candidates = (
db.query(TakeoverMessage)
.filter(
TakeoverMessage.avatar_id == avatar.id,
TakeoverMessage.owner_id == avatar.owner_id,
TakeoverMessage.peer_id == event.peer_id,
TakeoverMessage.direction == "incoming",
TakeoverMessage.message_type == BOXIM_IMAGE_MESSAGE_TYPE,
TakeoverMessage.is_avatar.is_(False),
TakeoverMessage.send_time >= threshold,
TakeoverMessage.send_time <= event.send_time,
)
.order_by(TakeoverMessage.send_time.desc())
.limit(MAX_RECENT_IMAGE_CONTEXTS)
.all()
)
if not candidates:
return []
current_ids = set(current_source_ids)
if references_image:
return [
image
for image in reversed(candidates)
if image.boxim_message_id not in current_ids
]
handled_ids = set(current_ids)
task_sources = (
db.query(TakeoverReplyTask.source_message_ids)
.filter(
TakeoverReplyTask.avatar_id == avatar.id,
TakeoverReplyTask.owner_id == avatar.owner_id,
TakeoverReplyTask.peer_id == event.peer_id,
TakeoverReplyTask.created_at >= threshold,
)
.all()
)
for (source_message_ids,) in task_sources:
handled_ids.update(source_message_ids or [])
return [
image
for image in reversed(candidates)
if image.boxim_message_id not in handled_ids
]
async def _prepare_replies(self) -> int:
db = self.session_factory()
try:
task_ids = [
row[0]
for row in (
db.query(TakeoverReplyTask.id)
.filter(
TakeoverReplyTask.status.in_(GENERATABLE_TASK_STATUSES),
TakeoverReplyTask.response_text == "",
TakeoverReplyTask.scheduled_at <= self.now(),
)
.order_by(TakeoverReplyTask.created_at.asc())
.limit(10)
.all()
)
]
finally:
db.close()
if not task_ids:
return 0
# Each conversation owns its task, so unrelated contacts can generate in
# parallel instead of one slow model response delaying every other peer.
semaphore = asyncio.Semaphore(4)
async def generate(task_id: str) -> bool:
async with semaphore:
return await asyncio.to_thread(self._generate_reply, task_id)
results = await asyncio.gather(*(generate(task_id) for task_id in task_ids))
return sum(bool(result) for result in results)
def _takeover_image_attachment(
self,
db: Session,
avatar: Avatar,
event: TakeoverMessage,
) -> ChatAttachment:
now = self.now()
if event.attachment_id:
cached = db.get(ChatAttachment, event.attachment_id)
if cached and cached.status == "ready" and cached.expires_at > now:
cached.used_at = now
db.commit()
return cached
downloaded = download_boxim_image(
event.content,
base_url=getattr(
self.boxim,
"im_base_url",
os.getenv("BOXIM_API_BASE_URL", "https://im.99hui.com/api"),
),
)
from routers.chat import _analyze_image_bytes
attachment = _analyze_image_bytes(
db,
avatar,
downloaded.content,
filename=downloaded.filename,
mime_type=downloaded.mime_type,
uploader_kind="boxim",
)
event.attachment_id = attachment.id
attachment.used_at = now
db.commit()
logger.info(
"BOXIM image analyzed message=%s attachment=%s avatar=%s category=%s",
event.boxim_message_id,
attachment.id,
avatar.id,
attachment.category,
)
return attachment
def _generate_reply(self, task_id: str) -> bool:
db = self.session_factory()
try:
task = db.query(TakeoverReplyTask).filter(TakeoverReplyTask.id == task_id).first()
if not task or task.status != "pending":
return False
avatar = db.query(Avatar).filter(Avatar.id == task.avatar_id).first()
if not _takeover_enabled(avatar):
task.status = "cancelled"
task.cancel_reason = "takeover_disabled"
db.commit()
return False
task.status = "generating"
task.locked_at = self.now()
db.commit()
excluded_ids = set(task.source_message_ids or [])
source_events = {
event.boxim_message_id: event
for event in (
db.query(TakeoverMessage)
.filter(
TakeoverMessage.owner_id == task.owner_id,
TakeoverMessage.peer_id == task.peer_id,
TakeoverMessage.avatar_id == task.avatar_id,
TakeoverMessage.boxim_message_id.in_(excluded_ids),
)
.all()
if excluded_ids
else []
)
}
events = (
db.query(TakeoverMessage)
.filter(
TakeoverMessage.owner_id == task.owner_id,
TakeoverMessage.peer_id == task.peer_id,
TakeoverMessage.avatar_id == task.avatar_id,
)
.order_by(TakeoverMessage.send_time.desc())
.limit(30)
.all()
)
image_attachments = []
image_failed = False
for message_id in (task.source_message_ids or [])[-3:]:
event = source_events.get(message_id)
if not event or event.message_type != BOXIM_IMAGE_MESSAGE_TYPE:
continue
try:
image_attachments.append(
self._takeover_image_attachment(db, avatar, event)
)
except (BoxIMImageError, ImageValidationError) as exc:
image_failed = True
logger.warning(
"BOXIM image unavailable message=%s avatar=%s: %s",
event.boxim_message_id,
avatar.id,
exc,
)
history = []
for event in reversed(events):
if (
event.boxim_message_id in excluded_ids
or event.message_type != BOXIM_TEXT_MESSAGE_TYPE
or not event.content.strip()
):
continue
if event.direction == "incoming" and event.is_avatar:
continue
history.append(
{
"role": "user" if event.direction == "incoming" else "assistant",
"content": event.content.strip(),
}
)
history = history[-10:]
from routers.chat import _attachment_contexts, _resolve_reply
image_contexts = _attachment_contexts(image_attachments)
if image_failed and not image_contexts:
answer = BOXIM_IMAGE_UNAVAILABLE_REPLY
else:
result = _resolve_reply(
db,
avatar,
task.prompt,
history,
usage_source="takeover",
image_contexts=image_contexts,
)
answer = _plain_text_reply(result.get("answer", ""))
db.refresh(task)
if task.status != "generating":
return False
if not answer:
raise RuntimeError("分身没有生成有效回复")
task.response_text = answer
task.status = "ready"
task.locked_at = None
task.last_error = ""
db.commit()
return True
except Exception as exc:
db.rollback()
task = db.query(TakeoverReplyTask).filter(TakeoverReplyTask.id == task_id).first()
if task and task.status in ("pending", "generating"):
task.attempts = (task.attempts or 0) + 1
task.status = "pending" if task.attempts < 3 else "failed"
task.locked_at = None
task.last_error = str(exc)[:300]
db.commit()
logger.warning("Failed to prepare takeover reply %s: %s", task_id, exc)
return False
finally:
db.close()
async def _dispatch_ready_replies(self):
db = self.session_factory()
try:
task_ids = [
row[0]
for row in (
db.query(TakeoverReplyTask.id)
.filter(
TakeoverReplyTask.status == "ready",
TakeoverReplyTask.scheduled_at <= self.now(),
)
.order_by(TakeoverReplyTask.scheduled_at.asc())
.limit(10)
.all()
)
]
finally:
db.close()
if task_ids:
await asyncio.gather(*(self._send_task(task_id) for task_id in task_ids))
async def _send_task(self, task_id: str) -> bool:
db = self.session_factory()
user = None
try:
task = db.query(TakeoverReplyTask).filter(TakeoverReplyTask.id == task_id).first()
if not task or task.status != "ready":
return False
avatar = db.query(Avatar).filter(Avatar.id == task.avatar_id).first()
if not _takeover_enabled(avatar):
task.status = "cancelled"
task.cancel_reason = "takeover_disabled"
db.commit()
return False
if (self.now() - task.scheduled_at).total_seconds() > MAX_SEND_OVERDUE_SECONDS:
task.status = "cancelled"
task.cancel_reason = "stale_reply"
db.commit()
return False
cursor = (
db.query(TakeoverCursor)
.filter(TakeoverCursor.avatar_id == task.avatar_id)
.first()
)
if not cursor or not cursor.last_polled_at or cursor.last_polled_at < task.scheduled_at:
# Do not race the owner's final seconds of the grace period. A
# completed poll at/after the due time must confirm no human reply.
return False
user = db.query(User).filter(User.huihui_user_id == task.owner_id).first()
if not user or not user.huihui_token:
raise BoxIMError("缺少会会登录凭证", auth_error=True)
task.status = "sending"
task.locked_at = self.now()
db.commit()
session = await self._boxim_session(user)
result = await self.boxim.send_private_message(
session["access_token"],
task.peer_id,
task.response_text,
local_id=task.boxim_local_id,
)
db.refresh(task)
if task.status != "sending":
return False
task.status = "sent"
task.sent_at = self.now()
task.locked_at = None
task.last_error = ""
task.boxim_sent_message_id = str(result.get("id") or "")
db.commit()
logger.info("BOXIM takeover reply sent for task %s", task.id)
return True
except Exception as exc:
db.rollback()
if user and isinstance(exc, BoxIMError) and exc.auth_error:
self._forget_boxim_session(user.id)
task = db.query(TakeoverReplyTask).filter(TakeoverReplyTask.id == task_id).first()
if task and task.status in ("ready", "sending"):
task.attempts = (task.attempts or 0) + 1
task.status = "ready" if task.attempts < 3 else "failed"
task.locked_at = None
task.last_error = str(exc)[:300]
if task.status == "ready":
task.scheduled_at = self.now() + timedelta(seconds=2 ** task.attempts)
db.commit()
logger.warning("Failed to send takeover reply %s: %s", task_id, exc)
return False
finally:
db.close()