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33829f2c1e
Co-authored-by: 4pmtong <web_chentong@163.com> Co-authored-by: Wendong-Fan <133094783+Wendong-Fan@users.noreply.github.com> Co-authored-by: Wendong-Fan <w3ndong.fan@gmail.com>
121 lines
No EOL
5.5 KiB
Python
121 lines
No EOL
5.5 KiB
Python
# ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
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from fastapi import APIRouter, Depends, HTTPException, Response
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from sqlmodel import Session, asc, select
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from app.component.database import session
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import json
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import asyncio
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from itsdangerous import SignatureExpired, BadTimeSignature
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from starlette.responses import StreamingResponse
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from app.model.chat.chat_share import ChatHistoryShareOut, ChatShare, ChatShareIn
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from app.model.chat.chat_step import ChatStep
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from app.model.chat.chat_history import ChatHistory
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from utils import traceroot_wrapper as traceroot
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logger = traceroot.get_logger("server_chat_share")
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router = APIRouter(prefix="/chat", tags=["Chat Share"])
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@router.get("/share/info/{token}", name="Get shared chat info", response_model=ChatHistoryShareOut)
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@traceroot.trace()
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def get_share_info(token: str, session: Session = Depends(session)):
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"""
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Get shared chat history info by token, excluding sensitive data.
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"""
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try:
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task_id = ChatShare.verify_token(token, False)
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except SignatureExpired:
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logger.warning("Shared chat access failed: token expired", extra={"token_prefix": token[:10]})
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raise HTTPException(status_code=400, detail="Share link is invalid or has expired.")
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except BadTimeSignature:
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logger.warning("Shared chat access failed: invalid token", extra={"token_prefix": token[:10]})
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raise HTTPException(status_code=400, detail="Share link is invalid or has expired.")
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stmt = select(ChatHistory).where(ChatHistory.task_id == task_id)
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history = session.exec(stmt).one_or_none()
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if not history:
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logger.warning("Shared chat not found", extra={"task_id": task_id})
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raise HTTPException(status_code=404, detail="Chat history not found.")
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logger.info("Shared chat info accessed", extra={"task_id": task_id})
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return history
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@router.get("/share/playback/{token}", name="Playback shared chat via SSE")
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@traceroot.trace()
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async def share_playback(token: str, session: Session = Depends(session), delay_time: float = 0):
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"""
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Playbacks the chat history via a sharing token (SSE).
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delay_time: control sse interval, max 5 seconds
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"""
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if delay_time > 5:
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logger.debug("Delay time capped", extra={"requested": delay_time, "capped": 5})
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delay_time = 5
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try:
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task_id = ChatShare.verify_token(token, False)
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except SignatureExpired:
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logger.warning("Shared chat playback failed: token expired", extra={"token_prefix": token[:10]})
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raise HTTPException(status_code=400, detail="Share link has expired.")
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except BadTimeSignature:
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logger.warning("Shared chat playback failed: invalid token", extra={"token_prefix": token[:10]})
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raise HTTPException(status_code=400, detail="Share link is invalid.")
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async def event_generator():
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try:
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stmt = select(ChatStep).where(ChatStep.task_id == task_id).order_by(asc(ChatStep.id))
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steps = session.exec(stmt).all()
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if not steps:
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logger.warning("No steps found for playback", extra={"task_id": task_id})
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yield f"data: {json.dumps({'error': 'No steps found for this task.'})}\n\n"
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return
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logger.info("Shared chat playback started", extra={"task_id": task_id, "step_count": len(steps), "delay_time": delay_time})
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for idx, step in enumerate(steps, start=1):
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step_data = {
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"id": step.id,
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"task_id": step.task_id,
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"step": step.step,
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"data": step.data,
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"created_at": step.created_at.isoformat() if step.created_at else None,
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}
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yield f"data: {json.dumps(step_data)}\n\n"
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if delay_time > 0 and step.step != "create_agent":
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await asyncio.sleep(delay_time)
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logger.info("Shared chat playback completed", extra={"task_id": task_id, "step_count": len(steps)})
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except Exception as e:
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logger.error("Shared chat playback error", extra={"task_id": task_id, "error": str(e)}, exc_info=True)
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yield f"data: {json.dumps({'error': 'Playback error occurred.'})}\n\n"
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return StreamingResponse(event_generator(), media_type="text/event-stream")
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@router.post("/share", name="Generate sharable link for a task(1 day expiration)")
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@traceroot.trace()
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def create_share_link(data: ChatShareIn):
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"""Generate sharing token with 1-day expiration for task."""
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try:
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share_token = ChatShare.generate_token(data.task_id)
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logger.info("Share link created", extra={"task_id": data.task_id, "token_prefix": share_token[:10]})
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return {"share_token": share_token}
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except Exception as e:
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logger.error("Share link creation failed", extra={"task_id": data.task_id, "error": str(e)}, exc_info=True)
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raise HTTPException(status_code=500, detail="Internal server error") |