153 lines
5.8 KiB
Python
153 lines
5.8 KiB
Python
import json
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import logging
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import time
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import uuid
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import oss2
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from aliyunsdkcore.client import AcsClient
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from aliyunsdkcore.acs_exception.exceptions import ClientException, ServerException
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# 尝试导入最新的 API 版本，如果有问题可能需要调整
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try:
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from aliyunsdktingwu.request.v20230930 import CreateTaskRequest, GetTaskInfoRequest
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except ImportError:
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# Fallback or error handling if version differs
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pass
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from django.conf import settings
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logger = logging.getLogger(__name__)
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class AliyunTingwuService:
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def __init__(self):
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self.access_key_id = settings.ALIYUN_ACCESS_KEY_ID
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self.access_key_secret = settings.ALIYUN_ACCESS_KEY_SECRET
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self.oss_bucket_name = settings.ALIYUN_OSS_BUCKET_NAME
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self.oss_endpoint = settings.ALIYUN_OSS_ENDPOINT
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self.tingwu_app_key = settings.ALIYUN_TINGWU_APP_KEY
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self.region_id = "cn-shanghai" # 听悟服务区域，根据文档应与OSS区域一致，或者使用 'cn-beijing'
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# 初始化 OSS Bucket
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if self.access_key_id and self.access_key_secret and self.oss_endpoint:
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auth = oss2.Auth(self.access_key_id, self.access_key_secret)
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self.bucket = oss2.Bucket(auth, self.oss_endpoint, self.oss_bucket_name)
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else:
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self.bucket = None
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logger.warning("Aliyun OSS configuration missing.")
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# 初始化听悟 Client
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if self.access_key_id and self.access_key_secret:
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self.client = AcsClient(
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self.access_key_id,
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self.access_key_secret,
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self.region_id
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)
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# 显式添加听悟服务的 Endpoint 映射，解决 EndpointResolvingError
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# 听悟 API 的服务接入点通常是 tingwu.cn-beijing.aliyuncs.com
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# 但新版听悟 API (tingwu.aliyuncs.com) 可能不同，需根据实际情况添加
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# 这里添加一个通用的 Endpoint 映射
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try:
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# 尝试为 tingwu 产品设置 Endpoint
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# 注意：听悟服务主要部署在北京，Endpoint 通常为 tingwu.cn-beijing.aliyuncs.com
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# 如果您的服务在上海，也可能需要连接到北京的接入点
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self.client.add_endpoint(self.region_id, "tingwu", "tingwu.cn-beijing.aliyuncs.com")
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except Exception as e:
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logger.warning(f"Failed to add endpoint: {e}")
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else:
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self.client = None
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logger.warning("Aliyun AccessKey configuration missing.")
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def upload_to_oss(self, file_obj, file_name):
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"""
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上传文件到 OSS 并返回带签名的 URL (有效期 3 小时)
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"""
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if not self.bucket:
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raise Exception("OSS Client not initialized")
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try:
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# 上传文件
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# file_obj 应该是打开的文件对象或字节流
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self.bucket.put_object(file_name, file_obj)
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# 生成签名 URL，有效期 3 小时 (3600 * 3)
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url = self.bucket.sign_url('GET', file_name, 3600 * 3)
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return url
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except Exception as e:
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logger.error(f"OSS Upload failed: {e}")
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raise e
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def create_transcription_task(self, file_url, language="cn"):
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"""
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创建听悟转写任务
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"""
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if not self.client:
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raise Exception("Tingwu Client not initialized")
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request = CreateTaskRequest.CreateTaskRequest()
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# 针对阿里云 SDK 不同版本的兼容性处理
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# "type" 参数是听悟 API (ROA 风格) 的必填项，用于指定任务类型
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# 根据官方文档，离线任务的 type 通常就是 'offline'
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request.add_query_param('type', 'offline')
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# 构造请求体 (Body)
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# 根据听悟 API 文档，AppKey, Input, Parameters 应位于 JSON Body 中
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# 而不是 Query Parameter
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body = {
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"AppKey": self.tingwu_app_key,
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"Input": {
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"FileUrl": file_url,
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"SourceLanguage": language,
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"TaskKey": str(uuid.uuid4())
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},
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"Parameters": {
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"Transcoding": {
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"TargetAudioFormat": "mp3"
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},
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"Transcription": {
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"DiarizationEnabled": True,
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"ChannelId": 0
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},
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"TranscriptionEnabled": True,
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"AutoChaptersEnabled": True,
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"SummarizationEnabled": True,
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"Summarization": {
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"Types": ["Paragraph", "Conversational", "QuestionsAnswering", "MindMap"]
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}
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}
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}
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# 设置 Body 内容
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request.set_content(json.dumps(body))
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request.add_header('Content-Type', 'application/json')
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# 强制设置 Endpoint，避免 SDK.EndpointResolvingError
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# 听悟目前主要服务点在北京
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request.set_endpoint("tingwu.cn-beijing.aliyuncs.com")
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# 显式设置 Method 为 PUT
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request.set_method('PUT')
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try:
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response = self.client.do_action_with_exception(request)
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return json.loads(response)
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except (ClientException, ServerException) as e:
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logger.error(f"Tingwu CreateTask failed: {e}")
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raise e
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def get_task_info(self, task_id):
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"""
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查询任务状态和结果
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"""
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if not self.client:
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raise Exception("Tingwu Client not initialized")
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request = GetTaskInfoRequest.GetTaskInfoRequest()
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request.set_TaskId(task_id)
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try:
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response = self.client.do_action_with_exception(request)
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return json.loads(response)
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except (ClientException, ServerException) as e:
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logger.error(f"Tingwu GetTaskInfo failed: {e}")
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raise e
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