178 lines
5.7 KiB
Python
178 lines
5.7 KiB
Python
import logging
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import os
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import tempfile
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import uuid
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from datetime import datetime
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from fastapi import APIRouter, Request, File, UploadFile
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from fastapi.responses import JSONResponse
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# 创建路由路由器
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router = APIRouter(prefix="/api", tags=["学伴"])
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# 配置日志
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logger = logging.getLogger(__name__)
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# 导入学伴工具函数、ASR客户端和OBS上传工具
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from Util.XueBanUtil import get_xueban_response_async
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from Util.ASRClient import ASRClient
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from Util.ObsUtil import ObsUploader
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@router.post("/xueban/upload-audio")
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async def upload_audio(file: UploadFile = File(...)):
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"""
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上传音频文件并进行ASR处理
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- 参数: file - 音频文件
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- 返回: JSON包含识别结果
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"""
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try:
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# 记录日志
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logger.info(f"接收到音频文件: {file.filename}")
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# 保存临时文件
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timestamp = datetime.now().strftime("%Y%m%d%H%M%S")
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file_ext = os.path.splitext(file.filename)[1]
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temp_file_name = f"temp_audio_{timestamp}{file_ext}"
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temp_file_path = os.path.join(tempfile.gettempdir(), temp_file_name)
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with open(temp_file_path, "wb") as f:
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content = await file.read()
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f.write(content)
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logger.info(f"音频文件已保存至临时目录: {temp_file_path}")
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# 调用ASR服务进行处理
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asr_result = await process_asr(temp_file_path)
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# 删除临时文件
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os.remove(temp_file_path)
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logger.info(f"临时文件已删除: {temp_file_path}")
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# 返回识别结果
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return JSONResponse(content={
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"success": True,
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"message": "音频识别成功",
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"data": asr_result
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})
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except Exception as e:
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logger.error(f"音频处理失败: {str(e)}")
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return JSONResponse(content={
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"success": False,
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"message": f"音频处理失败: {str(e)}"
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}, status_code=500)
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async def process_asr(audio_path: str) -> dict:
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"""
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调用ASR服务处理音频文件
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:param audio_path: 音频文件路径
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:return: 识别结果字典
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"""
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try:
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# 上传文件到华为云OBS
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audio_url = upload_file_to_obs(audio_path)
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# 创建ASR客户端实例
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asr_client = ASRClient()
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# 设置音频文件URL
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asr_client.file_url = audio_url
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# 处理ASR任务并获取文本结果
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text_result = asr_client.process_task()
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# 构建返回结果
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return {
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"text": text_result,
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"confidence": 1.0, # 实际应用中，这里应该从ASR结果中获取置信度
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"audio_duration": os.path.getsize(audio_path) / 1024 / 16 # 估算音频时长
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}
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except Exception as e:
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logger.error(f"ASR处理失败: {str(e)}")
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raise
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def upload_file_to_obs(file_path: str) -> str:
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"""
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将本地文件上传到华为云OBS并返回URL
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:param file_path: 本地文件路径
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:return: OBS上的文件URL
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"""
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try:
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# 创建OBS上传器实例
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obs_uploader = ObsUploader()
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# 生成UUID文件名
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file_uuid = str(uuid.uuid4())
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file_ext = os.path.splitext(file_path)[1].lower()
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# 确保文件扩展名为.wav
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if file_ext != '.wav':
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file_ext = '.wav'
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# 构建对象键（前缀 + UUID + .wav）
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object_key = f"HuangHai/XueBan/{file_uuid}{file_ext}"
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# 上传文件
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success, result = obs_uploader.upload_file(object_key, file_path)
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if success:
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logger.info(f"文件上传成功: {file_path} -> {object_key}")
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# 构建文件URL（假设OBS桶是公开可读的）
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# 实际应用中，URL格式可能需要根据华为云OBS的具体配置进行调整
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from Config.Config import OBS_SERVER, OBS_BUCKET
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file_url = f"https://{OBS_BUCKET}.{OBS_SERVER}/{object_key}"
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return file_url
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else:
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error_msg = f"文件上传失败: {result}"
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logger.error(error_msg)
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raise Exception(error_msg)
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except Exception as e:
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logger.error(f"上传文件到OBS失败: {str(e)}")
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raise
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@router.post("/xueban/chat")
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async def chat_with_xueban(request: Request):
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"""
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与学伴大模型聊天的接口
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- 参数: request body 中的 query_text (用户查询文本)
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- 返回: JSON包含聊天响应
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"""
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try:
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# 获取请求体数据
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data = await request.json()
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query_text = data.get("query_text", "")
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if not query_text.strip():
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return JSONResponse(content={
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"success": False,
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"message": "查询文本不能为空"
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}, status_code=400)
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# 记录日志
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logger.info(f"接收到学伴聊天请求: {query_text}")
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# 调用异步接口获取学伴响应
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response_content = []
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async for chunk in get_xueban_response_async(query_text, stream=True):
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response_content.append(chunk)
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full_response = "".join(response_content)
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# 返回响应
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return JSONResponse(content={
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"success": True,
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"message": "聊天成功",
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"data": {
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"response": full_response
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}
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})
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except Exception as e:
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logger.error(f"学伴聊天失败: {str(e)}")
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return JSONResponse(content={
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"success": False,
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"message": f"聊天处理失败: {str(e)}"
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}, status_code=500) |