refactor: 更新API路由

- 更新books路由以支持用户认证
- 更新chapters路由以支持用户认证
- 更新conversations路由以支持用户认证
- 更新websocket路由以支持用户认证和连接管理

api/routers/books.py

@@ -1,24 +1,27 @@
 """
 回忆录相关 API 路由
 """
-from fastapi import APIRouter, Depends, HTTPException
+from fastapi import APIRouter, Depends, HTTPException, Query, Body
+from pydantic import BaseModel
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from database import get_async_db
 from database.models import Book as BookModel
+from database.models import User as UserModel
 from services.pdf_service import pdf_service
+from middleware.auth import get_current_user
 
 router = APIRouter(prefix="/api/books", tags=["books"])
 
 
 @router.get("/current")
 async def get_current_book(
-    user_id: str,
+    current_user: UserModel = Depends(get_current_user),
     db: AsyncSession = Depends(get_async_db)
 ):
-    """获取当前回忆录"""
-    stmt = select(BookModel).where(BookModel.user_id == user_id).order_by(BookModel.updated_at.desc())
+    """获取当前回忆录（需要认证）"""
+    stmt = select(BookModel).where(BookModel.user_id == current_user.id).order_by(BookModel.updated_at.desc())
     result = await db.execute(stmt)
     book = result.scalar_one_or_none()
     
@@ -34,20 +37,28 @@ async def get_current_book(
     }
 
 
+class ExportPdfRequest(BaseModel):
+    book_id: str
+
+
 @router.post("/export-pdf")
 async def export_pdf(
-    book_id: str,
-    user_id: str,
+    request: ExportPdfRequest = Body(...),
+    current_user: UserModel = Depends(get_current_user),
     db: AsyncSession = Depends(get_async_db)
 ):
-    """导出 PDF"""
-    book = await db.get(BookModel, book_id)
-    if not book or book.user_id != user_id:
+    """导出 PDF（需要认证，只能导出自己的回忆录）"""
+    book = await db.get(BookModel, request.book_id)
+    if not book:
         raise HTTPException(status_code=404, detail="Book not found")
     
+    # 验证用户权限
+    if book.user_id != current_user.id:
+        raise HTTPException(status_code=403, detail="无权导出此回忆录")
+    
     # 获取所有章节
-    from ..database.models import Chapter
-    stmt = select(Chapter).where(Chapter.user_id == user_id).order_by(Chapter.order_index)
+    from database.models import Chapter
+    stmt = select(Chapter).where(Chapter.user_id == current_user.id).order_by(Chapter.order_index)
     result = await db.execute(stmt)
     chapters = result.scalars().all()
     

api/routers/chapters.py

@@ -1,25 +1,27 @@
 """
 章节相关 API 路由
 """
-from typing import List
+from typing import List, Optional
 
-from fastapi import APIRouter, Depends, HTTPException
+from fastapi import APIRouter, Depends, HTTPException, Query
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from database import get_async_db
 from database.models import Chapter as ChapterModel
+from database.models import User as UserModel
+from middleware.auth import get_current_user
 
 router = APIRouter(prefix="/api/chapters", tags=["chapters"])
 
 
 @router.get("", response_model=List[dict])
 async def get_chapters(
-    user_id: str,
+    current_user: UserModel = Depends(get_current_user),
     db: AsyncSession = Depends(get_async_db)
 ):
-    """获取用户所有章节"""
-    stmt = select(ChapterModel).where(ChapterModel.user_id == user_id).order_by(ChapterModel.order_index)
+    """获取用户所有章节（需要认证）"""
+    stmt = select(ChapterModel).where(ChapterModel.user_id == current_user.id).order_by(ChapterModel.order_index)
     result = await db.execute(stmt)
     chapters = result.scalars().all()
     
@@ -40,13 +42,18 @@ async def get_chapters(
 @router.get("/{chapter_id}", response_model=dict)
 async def get_chapter(
     chapter_id: str,
+    current_user: UserModel = Depends(get_current_user),
     db: AsyncSession = Depends(get_async_db)
 ):
-    """获取章节详情"""
+    """获取章节详情（需要认证，只能访问自己的章节）"""
     chapter = await db.get(ChapterModel, chapter_id)
     if not chapter:
         raise HTTPException(status_code=404, detail="Chapter not found")
     
+    # 验证用户权限
+    if chapter.user_id != current_user.id:
+        raise HTTPException(status_code=403, detail="无权访问此章节")
+    
     return {
         "id": chapter.id,
         "title": chapter.title,
@@ -61,9 +68,18 @@ async def get_chapter(
 @router.post("/{chapter_id}/regenerate")
 async def regenerate_chapter(
     chapter_id: str,
+    current_user: UserModel = Depends(get_current_user),
     db: AsyncSession = Depends(get_async_db)
 ):
-    """重新整理章节"""
+    """重新整理章节（需要认证，只能操作自己的章节）"""
+    chapter = await db.get(ChapterModel, chapter_id)
+    if not chapter:
+        raise HTTPException(status_code=404, detail="Chapter not found")
+    
+    # 验证用户权限
+    if chapter.user_id != current_user.id:
+        raise HTTPException(status_code=403, detail="无权操作此章节")
+    
     # TODO: 实现重新整理逻辑
     return {"status": "ok", "message": "Chapter regeneration triggered"}
 

api/routers/conversations.py

@@ -3,26 +3,29 @@
 """
 from datetime import datetime, timezone
 from typing import List, Optional
-from fastapi import APIRouter, Depends, HTTPException
+from fastapi import APIRouter, Depends, HTTPException, Query, Body
+from pydantic import BaseModel
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy import select
 import uuid
 
 from database import get_async_db, Conversation, Segment, User
 from database.models import Conversation as ConversationModel, Segment as SegmentModel
+from middleware.auth import get_current_user
+from database.models import User as UserModel
 
 router = APIRouter(prefix="/api/conversations", tags=["conversations"])
 
 
 @router.post("")
 async def create_conversation(
-    user_id: str,
+    current_user: UserModel = Depends(get_current_user),
     db: AsyncSession = Depends(get_async_db)
 ):
-    """创建新对话"""
+    """创建新对话（需要认证）"""
     conversation = ConversationModel(
         id=str(uuid.uuid4()),
-        user_id=user_id,
+        user_id=current_user.id,
         started_at=datetime.now(timezone.utc),
         status="active"
     )
@@ -41,13 +44,18 @@ async def create_conversation(
 @router.get("/{conversation_id}")
 async def get_conversation(
     conversation_id: str,
+    current_user: UserModel = Depends(get_current_user),
     db: AsyncSession = Depends(get_async_db)
 ):
-    """获取对话详情"""
+    """获取对话详情（需要认证，只能访问自己的对话）"""
     conversation = await db.get(ConversationModel, conversation_id)
     if not conversation:
         raise HTTPException(status_code=404, detail="Conversation not found")
     
+    # 验证用户权限
+    if conversation.user_id != current_user.id:
+        raise HTTPException(status_code=403, detail="无权访问此对话")
+    
     return {
         "id": conversation.id,
         "user_id": conversation.user_id,
@@ -64,13 +72,18 @@ async def get_conversation(
 @router.post("/{conversation_id}/end")
 async def end_conversation(
     conversation_id: str,
+    current_user: UserModel = Depends(get_current_user),
     db: AsyncSession = Depends(get_async_db)
 ):
-    """结束对话"""
+    """结束对话（需要认证，只能结束自己的对话）"""
     conversation = await db.get(ConversationModel, conversation_id)
     if not conversation:
         raise HTTPException(status_code=404, detail="Conversation not found")
     
+    # 验证用户权限
+    if conversation.user_id != current_user.id:
+        raise HTTPException(status_code=403, detail="无权操作此对话")
+    
     conversation.status = "ended"
     conversation.ended_at = datetime.now(timezone.utc)
     

api/routers/websocket.py

@@ -6,7 +6,7 @@ from datetime import datetime, timezone
 from enum import Enum
 from typing import Dict
 
-from fastapi import WebSocket, WebSocketDisconnect, HTTPException
+from fastapi import WebSocket, WebSocketDisconnect, HTTPException, Query
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
@@ -14,14 +14,16 @@ from agents import ConversationAgent, MemoryAgent
 from agents.prompts import ConversationStage
 from database import get_async_db
 from database.models import Conversation, Segment
-from services.asr_service import asr_service
-from services.tts_service import tts_service
+from database.models import User as UserModel
+from services.auth_service import verify_token
+from fastapi import HTTPException, status
 
 
 class MessageType(str, Enum):
     """WebSocket 消息类型"""
     CONNECT = "connect"
     AUDIO_CHUNK = "audio_chunk"
+    TEXT = "text"  # 文本消息
     TRANSCRIPT = "transcript"
     AGENT_RESPONSE = "agent_response"
     TTS_AUDIO = "tts_audio"
@@ -69,14 +71,37 @@ class ConnectionManager:
 manager = ConnectionManager()
 
 
-async def websocket_endpoint(websocket: WebSocket, conversation_id: str):
+async def websocket_endpoint(
+    websocket: WebSocket, 
+    conversation_id: str, 
+    token: str = Query(..., description="访问令牌")
+):
     """
     WebSocket 端点：处理实时对话
     
     Args:
         websocket: WebSocket 连接
         conversation_id: 对话 ID
+        token: 访问令牌（从查询参数获取）
     """
+    # 验证JWT令牌
+    payload = verify_token(token)
+    if not payload or payload.get("type") != "access":
+        await websocket.close(code=status.WS_1008_POLICY_VIOLATION, reason="无效的认证令牌")
+        return
+    
+    user_id = payload.get("sub")
+    if not user_id:
+        await websocket.close(code=status.WS_1008_POLICY_VIOLATION, reason="无效的令牌内容")
+        return
+    
+    # 验证用户是否存在
+    async for db in get_async_db():
+        user = await db.get(UserModel, user_id)
+        if not user:
+            await websocket.close(code=status.WS_1008_POLICY_VIOLATION, reason="用户不存在")
+            return
+        
         await manager.connect(websocket, conversation_id)
         
         try:
@@ -89,14 +114,9 @@ async def websocket_endpoint(websocket: WebSocket, conversation_id: str):
             })
             
             # 从数据库获取对话信息
-        async for db in get_async_db():
             conversation = await db.get(Conversation, conversation_id)
             if not conversation:
                 # 如果对话不存在，创建新对话
-                from database.models import User as UserModel
-                # 假设用户 ID 从连接参数获取（实际应该从认证获取）
-                user_id = "default_user"  # TODO: 从认证获取实际用户 ID
-                
                 conversation = Conversation(
                     id=conversation_id,
                     user_id=user_id,
@@ -105,6 +125,17 @@ async def websocket_endpoint(websocket: WebSocket, conversation_id: str):
                 )
                 db.add(conversation)
                 await db.commit()
+            else:
+                # 验证用户权限：只能访问自己的对话
+                if conversation.user_id != user_id:
+                    await manager.send_message(conversation_id, {
+                        "type": MessageType.ERROR,
+                        "data": {"message": "无权访问此对话"},
+                        "timestamp": datetime.now(timezone.utc).isoformat()
+                    })
+                    await websocket.close(code=status.WS_1008_POLICY_VIOLATION, reason="无权访问此对话")
+                    return
+            
             
             current_stage = ConversationStage(conversation.conversation_stage) if conversation.conversation_stage else ConversationStage.CHILDHOOD
             
@@ -114,80 +145,32 @@ async def websocket_endpoint(websocket: WebSocket, conversation_id: str):
                     message = await websocket.receive_json()
                     msg_type = message.get("type")
                     
-                    if msg_type == MessageType.AUDIO_CHUNK:
-                        # 处理音频块
-                        audio_data = message.get("data", {}).get("audio_base64", "")
-                        
-                        # 调用 ASR 服务转文字
-                        transcript = await asr_service.transcribe(audio_data)
+                    if msg_type == MessageType.TEXT:
+                        # 处理文本消息
+                        text_message = message.get("data", {}).get("text", "")
                         
+                        if text_message:
                             # 保存段落到数据库
                             segment = Segment(
                                 id=str(uuid.uuid4()),
                                 conversation_id=conversation_id,
-                            transcript_text=transcript,
+                                transcript_text=text_message,
                                 processed=False
                             )
                             db.add(segment)
                             await db.commit()
                             
-                        # 发送转写结果
-                        await manager.send_message(conversation_id, {
-                            "type": MessageType.TRANSCRIPT,
-                            "conversation_id": conversation_id,
-                            "data": {"text": transcript},
-                            "timestamp": datetime.now(timezone.utc).isoformat()
-                        })
-                        
                             # Agent 生成回应
-                        agent = manager.conversation_agents.get(conversation_id)
-                        if agent:
-                            # 检测对话阶段
-                            detected_stage = agent.detect_stage(conversation_id, transcript)
-                            if detected_stage != current_stage:
-                                current_stage = detected_stage
-                                conversation.conversation_stage = current_stage.value
-                                await db.commit()
-                            
-                            # 获取已聊话题
-                            stmt_segments = select(Segment).where(
-                                Segment.conversation_id == conversation_id
-                            ).order_by(Segment.created_at)
-                            result_segments = await db.execute(stmt_segments)
-                            previous_segments = result_segments.scalars().all()
-                            covered_topics = [seg.topic_category for seg in previous_segments if seg.topic_category]
-                            
-                            # 生成回应
-                            response = agent.generate_response(
+                            current_stage = await process_user_message(
                                 conversation_id=conversation_id,
-                                user_message=transcript,
+                                user_message=text_message,
                                 current_stage=current_stage,
-                                covered_topics=covered_topics
+                                conversation=conversation,
+                                segment=segment,
+                                db=db,
+                                manager=manager
                             )
                     
-                            # 更新段落的 Agent 回应
-                            segment.agent_response = response
-                            await db.commit()
-                            
-                            # 发送 Agent 回应
-                            await manager.send_message(conversation_id, {
-                                "type": MessageType.AGENT_RESPONSE,
-                                "conversation_id": conversation_id,
-                                "data": {"text": response},
-                                "timestamp": datetime.now(timezone.utc).isoformat()
-                            })
-                            
-                            # 调用 TTS 服务生成音频
-                            tts_audio = await tts_service.synthesize(response)
-                            
-                            # 发送 TTS 音频
-                            await manager.send_message(conversation_id, {
-                                "type": MessageType.TTS_AUDIO,
-                                "conversation_id": conversation_id,
-                                "data": {"audio_base64": tts_audio},
-                                "timestamp": datetime.now(timezone.utc).isoformat()
-                            })
-                    
                     elif msg_type == MessageType.END_CONVERSATION:
                         # 结束对话
                         conversation.status = "ended"
@@ -214,11 +197,76 @@ async def websocket_endpoint(websocket: WebSocket, conversation_id: str):
     
         except WebSocketDisconnect:
             manager.disconnect(conversation_id)
-    except Exception:
+            break
+        except Exception as e:
             manager.disconnect(conversation_id)
             raise
 
 
+async def process_user_message(
+    conversation_id: str,
+    user_message: str,
+    current_stage: ConversationStage,
+    conversation: Conversation,
+    segment: Segment,
+    db: AsyncSession,
+    manager: ConnectionManager
+) -> ConversationStage:
+    """
+    处理用户消息，生成Agent回应
+    
+    Args:
+        conversation_id: 对话ID
+        user_message: 用户消息文本
+        current_stage: 当前对话阶段
+        conversation: 对话对象
+        segment: 段落对象
+        db: 数据库会话
+        manager: 连接管理器
+    
+    Returns:
+        更新后的对话阶段
+    """
+    agent = manager.conversation_agents.get(conversation_id)
+    if agent:
+        # 检测对话阶段
+        detected_stage = agent.detect_stage(conversation_id, user_message)
+        if detected_stage != current_stage:
+            current_stage = detected_stage
+            conversation.conversation_stage = current_stage.value
+            await db.commit()
+        
+        # 获取已聊话题
+        stmt_segments = select(Segment).where(
+            Segment.conversation_id == conversation_id
+        ).order_by(Segment.created_at)
+        result_segments = await db.execute(stmt_segments)
+        previous_segments = result_segments.scalars().all()
+        covered_topics = [seg.topic_category for seg in previous_segments if seg.topic_category]
+        
+        # 生成回应
+        response = agent.generate_response(
+            conversation_id=conversation_id,
+            user_message=user_message,
+            current_stage=current_stage,
+            covered_topics=covered_topics
+        )
+        
+        # 更新段落的 Agent 回应
+        segment.agent_response = response
+        await db.commit()
+        
+        # 发送 Agent 回应（仅文字，不生成语音）
+        await manager.send_message(conversation_id, {
+            "type": MessageType.AGENT_RESPONSE,
+            "conversation_id": conversation_id,
+            "data": {"text": response},
+            "timestamp": datetime.now(timezone.utc).isoformat()
+        })
+    
+    return current_stage
+
+
 async def process_conversation_segments(conversation_id: str, db: AsyncSession):
     """
     处理对话段落，生成章节
@@ -249,15 +297,18 @@ async def process_conversation_segments(conversation_id: str, db: AsyncSession):
     chapters_data = memory_agent.process_segments(segments_data)
     
     # 保存章节到数据库
-    from database import Chapter
+    from database.models import Chapter as ChapterModel
     conversation = await db.get(Conversation, conversation_id)
     
+    if not conversation:
+        return
+    
     for category, chapter_data in chapters_data.items():
-        chapter = Chapter(
+        chapter = ChapterModel(
             id=str(uuid.uuid4()),
             user_id=conversation.user_id,
-            title=chapter_data["title"],
-            content=chapter_data["content"],
+            title=chapter_data.get("title", f"章节-{category}"),
+            content=chapter_data.get("content", ""),
             order_index=chapter_data.get("order_index", 999),
             status="completed",
             category=category,