Files
g0v0-server/app/router/chat/channel.py
2025-08-18 16:37:30 +00:00

306 lines
10 KiB
Python

from __future__ import annotations
from typing import Any, Literal, Self
from app.database.chat import (
ChannelType,
ChatChannel,
ChatChannelResp,
ChatMessage,
SilenceUser,
UserSilenceResp,
)
from app.database.lazer_user import User, UserResp
from app.dependencies.database import Database, get_redis
from app.dependencies.param import BodyOrForm
from app.dependencies.user import get_current_user
from app.router.v2 import api_v2_router as router
from .server import server
from fastapi import Depends, HTTPException, Path, Query, Security
from pydantic import BaseModel, Field, model_validator
from redis.asyncio import Redis
from sqlmodel import col, select
class UpdateResponse(BaseModel):
presence: list[ChatChannelResp] = Field(default_factory=list)
silences: list[Any] = Field(default_factory=list)
@router.get(
"/chat/updates",
response_model=UpdateResponse,
name="获取更新",
description="获取当前用户所在频道的最新的禁言情况。",
tags=["聊天"],
)
async def get_update(
session: Database,
history_since: int | None = Query(
None, description="获取自此禁言 ID 之后的禁言记录"
),
since: int | None = Query(None, description="获取自此消息 ID 之后的禁言记录"),
includes: list[str] = Query(
["presence", "silences"], alias="includes[]", description="要包含的更新类型"
),
current_user: User = Security(get_current_user, scopes=["chat.read"]),
redis: Redis = Depends(get_redis),
):
resp = UpdateResponse()
if "presence" in includes:
assert current_user.id
channel_ids = server.get_user_joined_channel(current_user.id)
for channel_id in channel_ids:
channel = await ChatChannel.get(channel_id, session)
if channel:
resp.presence.append(
await ChatChannelResp.from_db(
channel,
session,
current_user,
redis,
server.channels.get(channel_id, [])
if channel.type != ChannelType.PUBLIC
else None,
)
)
if "silences" in includes:
if history_since:
silences = (
await session.exec(
select(SilenceUser).where(col(SilenceUser.id) > history_since)
)
).all()
resp.silences.extend(
[UserSilenceResp.from_db(silence) for silence in silences]
)
elif since:
msg = await session.get(ChatMessage, since)
if msg:
silences = (
await session.exec(
select(SilenceUser).where(
col(SilenceUser.banned_at) > msg.timestamp
)
)
).all()
resp.silences.extend(
[UserSilenceResp.from_db(silence) for silence in silences]
)
return resp
@router.put(
"/chat/channels/{channel}/users/{user}",
response_model=ChatChannelResp,
name="加入频道",
description="加入指定的公开/房间频道。",
tags=["聊天"],
)
async def join_channel(
session: Database,
channel: str = Path(..., description="频道 ID/名称"),
user: str = Path(..., description="用户 ID"),
current_user: User = Security(get_current_user, scopes=["chat.write_manage"]),
):
db_channel = await ChatChannel.get(channel, session)
if db_channel is None:
raise HTTPException(status_code=404, detail="Channel not found")
return await server.join_channel(current_user, db_channel, session)
@router.delete(
"/chat/channels/{channel}/users/{user}",
status_code=204,
name="离开频道",
description="将用户移出指定的公开/房间频道。",
tags=["聊天"],
)
async def leave_channel(
session: Database,
channel: str = Path(..., description="频道 ID/名称"),
user: str = Path(..., description="用户 ID"),
current_user: User = Security(get_current_user, scopes=["chat.write_manage"]),
):
db_channel = await ChatChannel.get(channel, session)
if db_channel is None:
raise HTTPException(status_code=404, detail="Channel not found")
await server.leave_channel(current_user, db_channel, session)
return
@router.get(
"/chat/channels",
response_model=list[ChatChannelResp],
name="获取频道列表",
description="获取所有公开频道。",
tags=["聊天"],
)
async def get_channel_list(
session: Database,
current_user: User = Security(get_current_user, scopes=["chat.read"]),
redis: Redis = Depends(get_redis),
):
channels = (
await session.exec(
select(ChatChannel).where(ChatChannel.type == ChannelType.PUBLIC)
)
).all()
results = []
for channel in channels:
assert channel.channel_id is not None
results.append(
await ChatChannelResp.from_db(
channel,
session,
current_user,
redis,
server.channels.get(channel.channel_id, [])
if channel.type != ChannelType.PUBLIC
else None,
)
)
return results
class GetChannelResp(BaseModel):
channel: ChatChannelResp
users: list[UserResp] = Field(default_factory=list)
@router.get(
"/chat/channels/{channel}",
response_model=GetChannelResp,
name="获取频道信息",
description="获取指定频道的信息。",
tags=["聊天"],
)
async def get_channel(
session: Database,
channel: str = Path(..., description="频道 ID/名称"),
current_user: User = Security(get_current_user, scopes=["chat.read"]),
redis: Redis = Depends(get_redis),
):
db_channel = await ChatChannel.get(channel, session)
if db_channel is None:
raise HTTPException(status_code=404, detail="Channel not found")
assert db_channel.channel_id is not None
users = []
if db_channel.type == ChannelType.PM:
user_ids = db_channel.name.split("_")[1:]
if len(user_ids) != 2:
raise HTTPException(status_code=404, detail="Target user not found")
for id_ in user_ids:
if int(id_) == current_user.id:
continue
target_user = await session.get(User, int(id_))
if target_user is None:
raise HTTPException(status_code=404, detail="Target user not found")
users.extend([target_user, current_user])
break
return GetChannelResp(
channel=await ChatChannelResp.from_db(
db_channel,
session,
current_user,
redis,
server.channels.get(db_channel.channel_id, [])
if db_channel.type != ChannelType.PUBLIC
else None,
)
)
class CreateChannelReq(BaseModel):
class AnnounceChannel(BaseModel):
name: str
description: str
message: str | None = None
type: Literal["ANNOUNCE", "PM"] = "PM"
target_id: int | None = None
target_ids: list[int] | None = None
channel: AnnounceChannel | None = None
@model_validator(mode="after")
def check(self) -> Self:
if self.type == "PM":
if self.target_id is None:
raise ValueError("target_id must be set for PM channels")
else:
if self.target_ids is None or self.channel is None or self.message is None:
raise ValueError(
"target_ids, channel, and message must be set for ANNOUNCE channels"
)
return self
@router.post(
"/chat/channels",
response_model=ChatChannelResp,
name="创建频道",
description="创建一个新的私聊/通知频道。如果存在私聊频道则重新加入。",
tags=["聊天"],
)
async def create_channel(
session: Database,
req: CreateChannelReq = Depends(BodyOrForm(CreateChannelReq)),
current_user: User = Security(get_current_user, scopes=["chat.write_manage"]),
redis: Redis = Depends(get_redis),
):
if req.type == "PM":
target = await session.get(User, req.target_id)
if not target:
raise HTTPException(status_code=404, detail="Target user not found")
is_can_pm, block = await target.is_user_can_pm(current_user, session)
if not is_can_pm:
raise HTTPException(status_code=403, detail=block)
channel = await ChatChannel.get_pm_channel(
current_user.id, # pyright: ignore[reportArgumentType]
req.target_id, # pyright: ignore[reportArgumentType]
session,
)
channel_name = f"pm_{current_user.id}_{req.target_id}"
else:
channel_name = req.channel.name if req.channel else "Unnamed Channel"
channel = await ChatChannel.get(channel_name, session)
if channel is None:
channel = ChatChannel(
name=channel_name,
description=req.channel.description
if req.channel
else "Private message channel",
type=ChannelType.PM if req.type == "PM" else ChannelType.ANNOUNCE,
)
session.add(channel)
await session.commit()
await session.refresh(channel)
await session.refresh(current_user)
if req.type == "PM":
await session.refresh(target) # pyright: ignore[reportPossiblyUnboundVariable]
await server.batch_join_channel([target, current_user], channel, session) # pyright: ignore[reportPossiblyUnboundVariable]
else:
target_users = await session.exec(
select(User).where(col(User.id).in_(req.target_ids or []))
)
await server.batch_join_channel([*target_users, current_user], channel, session)
await server.join_channel(current_user, channel, session)
assert channel.channel_id
return await ChatChannelResp.from_db(
channel,
session,
current_user,
redis,
server.channels.get(channel.channel_id, []),
include_recent_messages=True,
)