684 lines
25 KiB
Python
684 lines
25 KiB
Python
import hashlib
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import json
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import uuid
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from typing import Annotated
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from fastapi import APIRouter, Depends, Query, Request
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from fastapi.responses import StreamingResponse
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from sqlalchemy.orm import Session
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from app.core.error_codes import BizCode
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from app.core.exceptions import BusinessException
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from app.core.logging_config import get_business_logger
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from app.core.response_utils import success, fail
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from app.db import get_db, get_db_read
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from app.dependencies import get_share_user_id, ShareTokenData
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from app.models.app_model import App
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from app.models.app_model import AppType
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from app.repositories import knowledge_repository
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from app.repositories.end_user_repository import EndUserRepository
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from app.repositories.workflow_repository import WorkflowConfigRepository
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from app.schemas import release_share_schema, conversation_schema
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from app.schemas.response_schema import PageData, PageMeta
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from app.services import workspace_service
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from app.services.app_chat_service import AppChatService, get_app_chat_service
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from app.services.app_service import AppService
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from app.services.auth_service import create_access_token
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from app.services.conversation_service import ConversationService
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from app.services.release_share_service import ReleaseShareService
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from app.services.shared_chat_service import SharedChatService
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from app.services.workflow_service import WorkflowService
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from app.utils.app_config_utils import workflow_config_4_app_release, \
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agent_config_4_app_release, multi_agent_config_4_app_release
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router = APIRouter(prefix="/public/share", tags=["Public Share"])
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logger = get_business_logger()
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def get_base_url(request: Request) -> str:
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"""从请求中获取基础 URL"""
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return f"{request.url.scheme}://{request.url.netloc}"
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def get_or_generate_user_id(payload_user_id: str, request: Request) -> str:
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"""获取或生成用户 ID
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优先级：
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1. 使用前端传递的 user_id
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2. 基于 IP + User-Agent 生成唯一 ID
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Args:
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payload_user_id: 前端传递的 user_id
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request: FastAPI Request 对象
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Returns:
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用户 ID
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"""
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if payload_user_id:
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return payload_user_id
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# 获取客户端 IP
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client_ip = request.client.host if request.client else "unknown"
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# 获取 User-Agent
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user_agent = request.headers.get("user-agent", "unknown")
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# 生成唯一 ID：基于 IP + User-Agent 的哈希
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unique_string = f"{client_ip}_{user_agent}"
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hash_value = hashlib.md5(unique_string.encode()).hexdigest()[:16]
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return f"guest_{hash_value}"
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@router.post(
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"/{share_token}/token",
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summary="获取访问 token"
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)
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def get_access_token(
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share_token: str,
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payload: release_share_schema.TokenRequest,
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request: Request,
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db: Session = Depends(get_db),
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):
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"""获取访问 token
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- 用户通过 user_id + share_token 换取访问 token
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- 后续请求需要携带此 token
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"""
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# 获取或生成 user_id
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user_id = get_or_generate_user_id(payload.user_id, request)
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# 验证分享链接（可选：验证密码）
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service = ReleaseShareService(db)
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try:
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service.get_shared_release_info(
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share_token=share_token,
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password=payload.password
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)
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except Exception as e:
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logger.error(f"获取分享信息失败: {str(e)}")
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raise
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# 生成 token
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access_token = create_access_token(user_id, share_token)
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logger.info(
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"生成访问 token",
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extra={
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"share_token": share_token,
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"user_id": user_id
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}
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)
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return success(data={
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"access_token": access_token,
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"token_type": "Bearer",
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"user_id": user_id
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})
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@router.get(
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"",
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summary="获取公开分享的应用信息",
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response_model=None
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)
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def get_shared_release(
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password: str = Query(None, description="访问密码（如果需要）"),
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share_data: ShareTokenData = Depends(get_share_user_id),
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db: Session = Depends(get_db),
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):
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"""获取公开分享的发布版本信息
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- 无需认证即可访问
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- 如果设置了密码保护，需要提供正确的密码
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- 如果密码错误或未提供密码，返回基本信息（不含配置详情）
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"""
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service = ReleaseShareService(db)
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info = service.get_shared_release_info(
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share_token=share_data.share_token,
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password=password
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)
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return success(data=info)
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@router.post(
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"/verify",
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summary="验证访问密码"
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)
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def verify_password(
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payload: release_share_schema.PasswordVerifyRequest,
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share_data: ShareTokenData = Depends(get_share_user_id),
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db: Session = Depends(get_db),
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):
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"""验证分享的访问密码
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- 用于前端先验证密码，再获取完整信息
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"""
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service = ReleaseShareService(db)
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is_valid = service.verify_password(
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share_token=share_data.share_token,
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password=payload.password
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)
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return success(data={"valid": is_valid})
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@router.get(
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"/embed",
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summary="获取嵌入代码"
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)
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def get_embed_code(
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width: str = Query("100%", description="iframe 宽度"),
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height: str = Query("600px", description="iframe 高度"),
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request: Request = None,
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share_data: ShareTokenData = Depends(get_share_user_id),
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db: Session = Depends(get_db),
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):
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"""获取嵌入代码
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- 返回 iframe 嵌入代码
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- 可以自定义宽度和高度
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"""
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base_url = get_base_url(request) if request else None
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service = ReleaseShareService(db)
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embed_code = service.get_embed_code(
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share_token=share_data.share_token,
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width=width,
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height=height,
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base_url=base_url
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)
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return success(data=embed_code)
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# ---------- 会话管理接口 ----------
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@router.get(
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"/conversations",
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summary="获取会话列表"
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)
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def list_conversations(
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password: str = Query(None, description="访问密码"),
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page: int = Query(1, ge=1),
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pagesize: int = Query(20, ge=1, le=100),
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share_data: ShareTokenData = Depends(get_share_user_id),
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db: Session = Depends(get_db),
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):
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"""获取分享应用的会话列表
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- 可以按 user_id 筛选
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- 支持分页
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"""
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logger.debug(f"share_data:{share_data.user_id}")
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other_id = share_data.user_id
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service = SharedChatService(db)
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share, release = service.get_release_by_share_token(share_data.share_token, password)
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end_user_repo = EndUserRepository(db)
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app_service = AppService(db)
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app = app_service._get_app_or_404(share.app_id)
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new_end_user = end_user_repo.get_or_create_end_user(
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app_id=share.app_id,
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workspace_id=app.workspace_id,
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other_id=other_id
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)
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logger.debug(new_end_user.id)
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conversations, total = service.list_conversations(
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share_token=share_data.share_token,
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user_id=str(new_end_user.id),
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password=password,
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page=page,
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pagesize=pagesize
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)
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items = [conversation_schema.Conversation.model_validate(c) for c in conversations]
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meta = PageMeta(page=page, pagesize=pagesize, total=total, hasnext=(page * pagesize) < total)
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return success(data=PageData(page=meta, items=items))
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@router.get(
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"/conversations/{conversation_id}",
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summary="获取会话详情（含消息）"
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)
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def get_conversation(
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conversation_id: uuid.UUID,
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password: str = Query(None, description="访问密码"),
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share_data: ShareTokenData = Depends(get_share_user_id),
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db: Session = Depends(get_db),
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):
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"""获取会话详情和消息历史"""
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chat_service = SharedChatService(db)
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conversation = chat_service.get_conversation_messages(
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share_token=share_data.share_token,
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conversation_id=conversation_id,
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password=password
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)
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# 获取消息
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conv_service = ConversationService(db)
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messages = conv_service.get_messages(conversation_id)
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# 构建响应
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conv_dict = conversation_schema.Conversation.model_validate(conversation).model_dump()
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conv_dict["messages"] = [
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conversation_schema.Message.model_validate(m) for m in messages
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]
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return success(data=conv_dict)
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# ---------- 聊天接口 ----------
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@router.post(
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"/chat",
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summary="发送消息（支持流式和非流式）"
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)
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async def chat(
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payload: conversation_schema.ChatRequest,
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share_data: ShareTokenData = Depends(get_share_user_id),
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db: Session = Depends(get_db),
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app_chat_service: Annotated[AppChatService, Depends(get_app_chat_service)] = None,
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):
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"""发送消息并获取回复
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使用 Bearer token 认证：
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- Header: Authorization: Bearer {token}
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- user_id 和 share_token 从 token 中解码
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- 支持多轮对话（提供 conversation_id）
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- 支持流式返回（设置 stream=true）
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- 如果不提供 conversation_id，会自动创建新会话
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"""
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service = SharedChatService(db)
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# 从依赖中获取 user_id 和 share_token
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user_id = share_data.user_id
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share_token = share_data.share_token
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password = None # Token 认证不需要密码
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# end_user_id = user_id
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other_id = user_id
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# 提前验证和准备（在流式响应开始前完成）
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# 这样可以确保错误能正确返回，而不是在流式响应中间出错
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try:
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# 验证分享链接和密码
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share, release = service.get_release_by_share_token(share_token, password)
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# # Create end_user_id by concatenating app_id with user_id
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# end_user_id = f"{share.app_id}_{user_id}"
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# Store end_user_id in database with original user_id
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end_user_repo = EndUserRepository(db)
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app_service = AppService(db)
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app = app_service._get_app_or_404(share.app_id)
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workspace_id = app.workspace_id
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new_end_user = end_user_repo.get_or_create_end_user(
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app_id=share.app_id,
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workspace_id=workspace_id,
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other_id=other_id,
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original_user_id=user_id
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)
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end_user_id = str(new_end_user.id)
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# appid = share.app_id
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"""获取存储类型和工作空间的ID"""
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# 直接通过 SQLAlchemy 查询 app（仅查询未删除的应用）
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# app = db.query(App).filter(
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# App.id == appid,
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# App.is_active.is_(True)
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# ).first()
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# if not app:
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# raise BusinessException("应用不存在", BizCode.APP_NOT_FOUND)
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# workspace_id = app.workspace_id
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# 直接从 workspace 获取 storage_type（公开分享场景无需权限检查）
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storage_type = workspace_service.get_workspace_storage_type_without_auth(
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db=db,
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workspace_id=workspace_id
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)
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if storage_type is None:
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storage_type = 'neo4j'
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user_rag_memory_id = ''
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# 如果 storage_type 是 rag，必须确保有有效的 user_rag_memory_id
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if storage_type == 'rag':
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if workspace_id:
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knowledge = knowledge_repository.get_knowledge_by_name(
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db=db,
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name="USER_RAG_MERORY",
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workspace_id=workspace_id
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)
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if knowledge:
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user_rag_memory_id = str(knowledge.id)
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else:
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logger.warning(
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f"未找到名为 'USER_RAG_MERORY' 的知识库，workspace_id: {workspace_id}，将使用 neo4j 存储")
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storage_type = 'neo4j'
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else:
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logger.warning("workspace_id 为空，无法使用 rag 存储，将使用 neo4j 存储")
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storage_type = 'neo4j'
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# 获取应用类型
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app_type = release.app.type if release.app else None
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# 根据应用类型验证配置
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if app_type == AppType.AGENT:
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# Agent 类型：验证模型配置
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model_config_id = release.default_model_config_id
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if not model_config_id:
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raise BusinessException("Agent 应用未配置模型", BizCode.AGENT_CONFIG_MISSING)
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elif app_type == AppType.MULTI_AGENT:
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# Multi-Agent 类型：验证多 Agent 配置
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config = release.config or {}
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if not config.get("sub_agents"):
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raise BusinessException("多 Agent 应用未配置子 Agent", BizCode.AGENT_CONFIG_MISSING)
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elif app_type == AppType.WORKFLOW:
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# Multi-Agent 类型：验证多 Agent 配置
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pass
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else:
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raise BusinessException(f"不支持的应用类型: {app_type}", BizCode.APP_TYPE_NOT_SUPPORTED)
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# 获取或创建会话（提前验证）
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conversation = service.create_or_get_conversation(
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share_token=share_data.share_token,
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conversation_id=payload.conversation_id,
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user_id=str(new_end_user.id), # 转换为字符串
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password=password
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)
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logger.debug(
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"参数验证完成",
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extra={
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"share_token": share_token,
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"app_type": app_type,
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"conversation_id": str(conversation.id),
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"stream": payload.stream
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}
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)
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except Exception as e:
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# 验证失败，直接抛出异常（会被 FastAPI 的异常处理器捕获）
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logger.error(f"参数验证失败: {str(e)}")
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raise
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if app_type == AppType.AGENT:
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# 流式返回
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agent_config = agent_config_4_app_release(release)
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if payload.stream:
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# async def event_generator():
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# async for event in service.chat_stream(
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# share_token=share_token,
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# message=payload.message,
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# conversation_id=conversation.id, # 使用已创建的会话 ID
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# user_id=str(new_end_user.id), # 转换为字符串
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# variables=payload.variables,
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# password=password,
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# web_search=payload.web_search,
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# memory=payload.memory,
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# storage_type=storage_type,
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# user_rag_memory_id=user_rag_memory_id
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# ):
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# yield event
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# return StreamingResponse(
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# event_generator(),
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# media_type="text/event-stream",
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# headers={
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# "Cache-Control": "no-cache",
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# "Connection": "keep-alive",
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# "X-Accel-Buffering": "no"
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# }
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# )
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async def event_generator():
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async for event in app_chat_service.agnet_chat_stream(
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message=payload.message,
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conversation_id=conversation.id, # 使用已创建的会话 ID
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user_id=str(new_end_user.id), # 转换为字符串
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variables=payload.variables,
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web_search=payload.web_search,
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config=agent_config,
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memory=payload.memory,
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storage_type=storage_type,
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user_rag_memory_id=user_rag_memory_id,
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workspace_id=workspace_id,
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files=payload.files # 传递多模态文件
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):
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yield event
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return StreamingResponse(
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event_generator(),
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media_type="text/event-stream",
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headers={
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"Cache-Control": "no-cache",
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"Connection": "keep-alive",
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"X-Accel-Buffering": "no"
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}
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)
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# 非流式返回
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# result = await service.chat(
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# share_token=share_token,
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# message=payload.message,
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# conversation_id=conversation.id, # 使用已创建的会话 ID
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# user_id=str(new_end_user.id), # 转换为字符串
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# variables=payload.variables,
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# password=password,
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# web_search=payload.web_search,
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# memory=payload.memory,
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# storage_type=storage_type,
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# user_rag_memory_id=user_rag_memory_id
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# )
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# return success(data=conversation_schema.ChatResponse(**result))
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result = await app_chat_service.agnet_chat(
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message=payload.message,
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conversation_id=conversation.id, # 使用已创建的会话 ID
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user_id=str(new_end_user.id), # 转换为字符串
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variables=payload.variables,
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||
config=agent_config,
|
||
web_search=payload.web_search,
|
||
memory=payload.memory,
|
||
storage_type=storage_type,
|
||
user_rag_memory_id=user_rag_memory_id,
|
||
workspace_id=workspace_id,
|
||
files=payload.files # 传递多模态文件
|
||
)
|
||
return success(data=conversation_schema.ChatResponse(**result).model_dump(mode="json"))
|
||
elif app_type == AppType.MULTI_AGENT:
|
||
# config = workflow_config_4_app_release(release)
|
||
config = multi_agent_config_4_app_release(release)
|
||
if payload.stream:
|
||
async def event_generator():
|
||
async for event in app_chat_service.multi_agent_chat_stream(
|
||
|
||
message=payload.message,
|
||
conversation_id=conversation.id, # 使用已创建的会话 ID
|
||
user_id=str(new_end_user.id), # 转换为字符串
|
||
variables=payload.variables,
|
||
config=config,
|
||
web_search=payload.web_search,
|
||
memory=payload.memory,
|
||
storage_type=storage_type,
|
||
user_rag_memory_id=user_rag_memory_id
|
||
):
|
||
yield event
|
||
|
||
return StreamingResponse(
|
||
event_generator(),
|
||
media_type="text/event-stream",
|
||
headers={
|
||
"Cache-Control": "no-cache",
|
||
"Connection": "keep-alive",
|
||
"X-Accel-Buffering": "no"
|
||
}
|
||
)
|
||
|
||
# 多 Agent 非流式返回
|
||
result = await app_chat_service.multi_agent_chat(
|
||
|
||
message=payload.message,
|
||
conversation_id=conversation.id, # 使用已创建的会话 ID
|
||
user_id=end_user_id, # 转换为字符串
|
||
variables=payload.variables,
|
||
config=config,
|
||
web_search=payload.web_search,
|
||
memory=payload.memory,
|
||
storage_type=storage_type,
|
||
user_rag_memory_id=user_rag_memory_id
|
||
)
|
||
|
||
return success(data=conversation_schema.ChatResponse(**result).model_dump(mode="json"))
|
||
# 多 Agent 流式返回
|
||
# if payload.stream:
|
||
# async def event_generator():
|
||
# async for event in service.multi_agent_chat_stream(
|
||
# share_token=share_token,
|
||
# message=payload.message,
|
||
# conversation_id=conversation.id, # 使用已创建的会话 ID
|
||
# user_id=str(new_end_user.id), # 转换为字符串
|
||
# variables=payload.variables,
|
||
# password=password,
|
||
# web_search=payload.web_search,
|
||
# memory=payload.memory,
|
||
# storage_type=storage_type,
|
||
# user_rag_memory_id=user_rag_memory_id
|
||
# ):
|
||
# yield event
|
||
|
||
# return StreamingResponse(
|
||
# event_generator(),
|
||
# media_type="text/event-stream",
|
||
# headers={
|
||
# "Cache-Control": "no-cache",
|
||
# "Connection": "keep-alive",
|
||
# "X-Accel-Buffering": "no"
|
||
# }
|
||
# )
|
||
|
||
# # 多 Agent 非流式返回
|
||
# result = await service.multi_agent_chat(
|
||
# share_token=share_token,
|
||
# message=payload.message,
|
||
# conversation_id=conversation.id, # 使用已创建的会话 ID
|
||
# user_id=str(new_end_user.id), # 转换为字符串
|
||
# variables=payload.variables,
|
||
# password=password,
|
||
# web_search=payload.web_search,
|
||
# memory=payload.memory,
|
||
# storage_type=storage_type,
|
||
# user_rag_memory_id=user_rag_memory_id
|
||
# )
|
||
|
||
# return success(data=conversation_schema.ChatResponse(**result))
|
||
elif app_type == AppType.WORKFLOW:
|
||
config = workflow_config_4_app_release(release)
|
||
if not config.id:
|
||
with get_db_read() as db:
|
||
source_config = WorkflowConfigRepository(db).get_by_app_id(release.app_id)
|
||
config.id = source_config.id
|
||
config.id = uuid.UUID(config.id)
|
||
if payload.stream:
|
||
async def event_generator():
|
||
async for event in app_chat_service.workflow_chat_stream(
|
||
message=payload.message,
|
||
conversation_id=conversation.id, # 使用已创建的会话 ID
|
||
user_id=end_user_id, # 转换为字符串
|
||
variables=payload.variables,
|
||
files=payload.files,
|
||
config=config,
|
||
web_search=payload.web_search,
|
||
memory=payload.memory,
|
||
storage_type=storage_type,
|
||
user_rag_memory_id=user_rag_memory_id,
|
||
app_id=release.app_id,
|
||
workspace_id=workspace_id,
|
||
release_id=release.id,
|
||
public=True
|
||
):
|
||
event_type = event.get("event", "message")
|
||
event_data = event.get("data", {})
|
||
|
||
# 转换为标准 SSE 格式（字符串）
|
||
sse_message = f"event: {event_type}\ndata: {json.dumps(event_data, default=str, ensure_ascii=False)}\n\n"
|
||
yield sse_message
|
||
|
||
return StreamingResponse(
|
||
event_generator(),
|
||
media_type="text/event-stream",
|
||
headers={
|
||
"Cache-Control": "no-cache",
|
||
"Connection": "keep-alive",
|
||
"X-Accel-Buffering": "no"
|
||
}
|
||
)
|
||
|
||
# 多 Agent 非流式返回
|
||
result = await app_chat_service.workflow_chat(
|
||
|
||
message=payload.message,
|
||
conversation_id=conversation.id, # 使用已创建的会话 ID
|
||
user_id=end_user_id, # 转换为字符串
|
||
variables=payload.variables,
|
||
config=config,
|
||
web_search=payload.web_search,
|
||
memory=payload.memory,
|
||
storage_type=storage_type,
|
||
user_rag_memory_id=user_rag_memory_id,
|
||
app_id=release.app_id,
|
||
workspace_id=workspace_id,
|
||
release_id=release.id
|
||
)
|
||
logger.debug(
|
||
"工作流试运行返回结果",
|
||
extra={
|
||
"result_type": str(type(result)),
|
||
"has_response": "response" in result if isinstance(result, dict) else False
|
||
}
|
||
)
|
||
return success(
|
||
data=result,
|
||
msg="工作流任务执行成功"
|
||
)
|
||
# return success(data=conversation_schema.ChatResponse(**result).model_dump(mode="json"))
|
||
|
||
else:
|
||
raise BusinessException(f"不支持的应用类型: {app_type}", BizCode.APP_TYPE_NOT_SUPPORTED)
|
||
|
||
|
||
@router.get("/config", summary="获取应用启动配置")
|
||
async def config_query(
|
||
password: str = Query(None, description="访问密码"),
|
||
share_data: ShareTokenData = Depends(get_share_user_id),
|
||
db: Session = Depends(get_db),
|
||
):
|
||
share_service = SharedChatService(db)
|
||
share_token = share_data.share_token
|
||
share, release = share_service.get_release_by_share_token(share_token, password)
|
||
if release.app.type == AppType.WORKFLOW:
|
||
workflow_service = WorkflowService(db)
|
||
content = {
|
||
"app_type": release.app.type,
|
||
"variables": workflow_service.get_start_node_variables(release.config),
|
||
"memory": workflow_service.is_memory_enable(release.config),
|
||
"features": release.config.get("features")
|
||
}
|
||
elif release.app.type == AppType.AGENT:
|
||
content = {
|
||
"app_type": release.app.type,
|
||
"variables": release.config.get("variables"),
|
||
"features": release.config.get("features")
|
||
}
|
||
elif release.app.type == AppType.MULTI_AGENT:
|
||
content = {
|
||
"app_type": release.app.type,
|
||
"variables": [],
|
||
"features": release.config.get("features")
|
||
}
|
||
else:
|
||
return fail(msg="Unsupported app type", code=BizCode.APP_TYPE_NOT_SUPPORTED)
|
||
return success(data=content)
|