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fix(backend): 部署韧性——模型自愈/就绪门禁/全局代理/启动诊断
- whisper: model.bin 截断/损坏时删目录重下重试一次,修「Unable to
open file model.bin」死循环;mlx 同样按 config.json 判完整性
- /generate_note 加就绪门禁:本地转写引擎模型没下好直接拦截,返回
reason=transcriber_model_not_ready,不让任务静默卡在首次下载
- 全局代理:新增 ProxyConfigManager(JSON 配置 + HTTP_PROXY env 兜底)
+ build_openai_client,统一注入代理到 LLM/Groq 客户端;yt-dlp 与
youtube-transcript-api 也走代理
- build_openai_client 校验 api_key 非空,空 key 给「xxx 的 API Key
未配置」而不是天书般的 Illegal header value b'Bearer '
- universal_gpt: 模型拒绝自定义 temperature(o1/o3/gpt-5 系列)时
就地去掉参数重试,不消耗重试预算
- connect_test 改用真实 chat completion 而非 /v1/models 探测
- main.py: lifespan 拆 [startup 1/5..5/5] 分段日志 + 异常清晰定位
- /sys_health 重构为结构化返回 {backend,ffmpeg,db,whisper_model}
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
co-authored by
Claude Opus 4.7
parent
88d25f8cc1
commit
41f17592c2
@@ -8,6 +8,7 @@ from typing import Optional, List
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from youtube_transcript_api import YouTubeTranscriptApi
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from app.models.transcriber_model import TranscriptResult, TranscriptSegment
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from app.services.proxy_config_manager import ProxyConfigManager
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from app.utils.logger import get_logger
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logger = get_logger(__name__)
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@@ -17,7 +18,21 @@ class YouTubeSubtitleFetcher:
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"""通过 youtube-transcript-api 获取 YouTube 字幕。"""
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def __init__(self):
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self._api = YouTubeTranscriptApi()
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# 配了全局代理就给 youtube-transcript-api 套一个带 proxies 的 requests.Session,
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# 否则国内拉字幕同样会超时。代理未配置时退回默认无代理客户端。
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proxy = ProxyConfigManager().get_proxy_url()
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if proxy:
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try:
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import requests
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session = requests.Session()
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session.proxies = {"http": proxy, "https": proxy}
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self._api = YouTubeTranscriptApi(http_client=session)
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logger.info(f"YouTube 字幕走代理: {proxy}")
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except Exception as e:
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logger.warning(f"为 youtube-transcript-api 注入代理失败,回退无代理: {e}")
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self._api = YouTubeTranscriptApi()
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else:
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self._api = YouTubeTranscriptApi()
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def fetch_subtitles(
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self,
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