mirror of
https://github.com/JefferyHcool/BiliNote.git
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pumpkinperson996andClaude Fable 5
b85d7bc1ff
从"稍后再看"（/list/watchlater/?bvid=BV...）、收藏夹播放页等场景 复制的链接会被判为无效链接，尽管其中包含完整 BV 号；校验通过的 链接也会带着追踪参数原样传给 yt-dlp。 在请求入口新增 normalize_video_url()：提取 BV 号重建标准 /video/BVxxx 链接，保留分 P 参数（?p=N），丢弃其余查询参数。 b23.tv 短链与其他平台行为不变，无 BV 号链接仍按原逻辑拒绝。 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
331 lines
12 KiB
Python
331 lines
12 KiB
Python
# app/routers/note.py
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import json
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import os
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import uuid
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from pathlib import Path
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from typing import Optional
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from urllib.parse import urlparse
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from fastapi import APIRouter, HTTPException, BackgroundTasks, UploadFile, File
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from pydantic import BaseModel, validator, field_validator, model_validator
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from dataclasses import asdict
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from app.db.video_task_dao import get_task_by_video
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from app.enmus.exception import NoteErrorEnum
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from app.enmus.note_enums import DownloadQuality
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from app.exceptions.note import NoteError
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from app.services.note import NoteGenerator, logger
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from app.services.task_serial_executor import task_serial_executor
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from app.utils.response import ResponseWrapper as R
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from app.utils.url_parser import extract_video_id, normalize_video_url
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from app.validators.video_url_validator import is_supported_video_url
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from fastapi import APIRouter, Request, HTTPException
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from fastapi.responses import StreamingResponse
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import httpx
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from app.enmus.task_status_enums import TaskStatus
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# from app.services.downloader import download_raw_audio
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# from app.services.whisperer import transcribe_audio
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router = APIRouter()
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class RecordRequest(BaseModel):
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video_id: str
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platform: str
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class VideoRequest(BaseModel):
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video_url: str
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platform: str
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quality: DownloadQuality
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screenshot: Optional[bool] = False
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link: Optional[bool] = False
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model_name: str
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provider_id: str
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task_id: Optional[str] = None
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format: Optional[list] = []
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style: str = None
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extras: Optional[str]=None
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video_understanding: Optional[bool] = False
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video_interval: Optional[int] = 0
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grid_size: Optional[list] = []
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# 客户端（如浏览器插件）已经在用户浏览器里抓到字幕，直接传给后端复用，
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# 跳过 download_subtitles 和音频转写。形如：
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# {"language": "zh", "full_text": "...", "segments": [{"start","end","text"}, ...]}
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prefetched_transcript: Optional[dict] = None
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@model_validator(mode="before")
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@classmethod
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def normalize_url(cls, data):
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# 稍后再看/收藏夹/带追踪参数的 B 站链接先规范化成标准 /video/BVxxx 形式，
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# 后续校验和 yt-dlp 下载拿到的都是干净链接
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if isinstance(data, dict) and data.get("platform") == "bilibili" and data.get("video_url"):
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data["video_url"] = normalize_video_url(str(data["video_url"]))
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return data
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@field_validator("video_url")
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def validate_supported_url(cls, v):
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url = str(v)
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parsed = urlparse(url)
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if parsed.scheme in ("http", "https"):
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# 是网络链接，继续用原有平台校验
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if not is_supported_video_url(url):
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raise NoteError(code=NoteErrorEnum.PLATFORM_NOT_SUPPORTED.code,
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message=NoteErrorEnum.PLATFORM_NOT_SUPPORTED.message)
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return v
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NOTE_OUTPUT_DIR = os.getenv("NOTE_OUTPUT_DIR", "note_results")
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UPLOAD_DIR = "uploads"
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def save_note_to_file(task_id: str, note):
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os.makedirs(NOTE_OUTPUT_DIR, exist_ok=True)
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with open(os.path.join(NOTE_OUTPUT_DIR, f"{task_id}.json"), "w", encoding="utf-8") as f:
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json.dump(asdict(note), f, ensure_ascii=False, indent=2)
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def _persist_prefetched_transcript(task_id: str, transcript: dict) -> None:
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"""把客户端预取的字幕写到 NoteGenerator 期望的转写缓存文件里。
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NoteGenerator.generate 会优先读 <task_id>_transcript.json，命中即跳过 download_subtitles
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与音频转写流程。要求字段：language(可空)/full_text/segments[{start,end,text}]
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"""
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segments = transcript.get("segments") or []
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cleaned_segments = []
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for s in segments:
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text = (s.get("text") or "").strip()
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if not text:
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continue
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cleaned_segments.append({
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"start": float(s.get("start", 0)),
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"end": float(s.get("end", 0)),
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"text": text,
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})
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if not cleaned_segments:
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raise ValueError("prefetched_transcript 没有可用的 segments")
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full_text = transcript.get("full_text") or " ".join(s["text"] for s in cleaned_segments)
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payload = {
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"language": transcript.get("language") or "zh",
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"full_text": full_text,
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"segments": cleaned_segments,
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}
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os.makedirs(NOTE_OUTPUT_DIR, exist_ok=True)
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target = os.path.join(NOTE_OUTPUT_DIR, f"{task_id}_transcript.json")
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with open(target, "w", encoding="utf-8") as f:
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json.dump(payload, f, ensure_ascii=False, indent=2)
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logger.info(f"已写入客户端预取字幕缓存: {target} ({len(cleaned_segments)} 段)")
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def run_note_task(task_id: str, video_url: str, platform: str, quality: DownloadQuality,
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link: bool = False, screenshot: bool = False, model_name: str = None, provider_id: str = None,
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_format: list = None, style: str = None, extras: str = None, video_understanding: bool = False,
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video_interval=0, grid_size=[]
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):
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if not model_name or not provider_id:
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raise HTTPException(status_code=400, detail="请选择模型和提供者")
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def _execute_note_task():
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return NoteGenerator().generate(
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video_url=video_url,
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platform=platform,
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quality=quality,
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task_id=task_id,
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model_name=model_name,
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provider_id=provider_id,
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link=link,
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_format=_format,
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style=style,
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extras=extras,
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screenshot=screenshot,
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video_understanding=video_understanding,
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video_interval=video_interval,
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grid_size=grid_size,
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)
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logger.info(f"任务进入执行队列 (task_id={task_id})")
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note = task_serial_executor.run(_execute_note_task)
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logger.info(f"Note generated: {task_id}")
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if not note or not note.markdown:
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logger.warning(f"任务 {task_id} 执行失败，跳过保存")
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return
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save_note_to_file(task_id, note)
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# 自动建立向量索引（用于 AI 问答），失败不影响笔记生成
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try:
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from app.services.vector_store import VectorStoreManager
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VectorStoreManager().index_task(task_id)
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except Exception as e:
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logger.warning(f"向量索引失败（不影响笔记）: {e}")
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@router.post('/delete_task')
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def delete_task(data: RecordRequest):
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try:
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# TODO: 待持久化完成
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# NoteGenerator().delete_note(video_id=data.video_id, platform=data.platform)
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return R.success(msg='删除成功')
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except Exception as e:
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return R.error(msg=e)
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@router.post("/upload")
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async def upload(file: UploadFile = File(...)):
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os.makedirs(UPLOAD_DIR, exist_ok=True)
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file_location = os.path.join(UPLOAD_DIR, file.filename)
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with open(file_location, "wb+") as f:
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f.write(await file.read())
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# 假设你静态目录挂载了 /uploads
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return R.success({"url": f"/uploads/{file.filename}"})
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@router.post("/generate_note")
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def generate_note(data: VideoRequest, background_tasks: BackgroundTasks):
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try:
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# 就绪门禁：本地转写引擎（fast-whisper / mlx-whisper）必须等模型下载完才能跑视频，
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# 否则任务会卡在首次下载（慢 / OOM / 截断），用户只看到一个静默失败的任务。
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# 客户端已抓好字幕（prefetched_transcript）则不需要转写，跳过检查。
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if not data.prefetched_transcript:
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from app.services.transcriber_config_manager import TranscriberConfigManager
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readiness = TranscriberConfigManager().is_model_ready()
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if not readiness["ready"]:
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logger.warning(f"拒绝 generate_note：{readiness['reason']}")
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return R.error(
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msg=readiness["reason"],
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code=300102,
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data={
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"reason": "transcriber_model_not_ready",
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"transcriber_type": readiness["transcriber_type"],
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"model_size": readiness["model_size"],
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"downloading": readiness["downloading"],
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},
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)
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video_id = extract_video_id(data.video_url, data.platform)
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# if not video_id:
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# raise HTTPException(status_code=400, detail="无法提取视频 ID")
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# existing = get_task_by_video(video_id, data.platform)
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# if existing:
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# return R.error(
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# msg='笔记已生成，请勿重复发起',
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#
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# )
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if data.task_id:
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# 如果传了task_id，说明是重试！
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task_id = data.task_id
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logger.info(f"重试模式，复用已有 task_id={task_id}")
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else:
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# 正常新建任务
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task_id = str(uuid.uuid4())
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# 统一先写入 PENDING，表示已进入队列等待串行执行
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NoteGenerator()._update_status(task_id, TaskStatus.PENDING)
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# 客户端已经抓好字幕的话，写到转写缓存文件，NoteGenerator 的 cache-hit 逻辑会直接用上
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if data.prefetched_transcript:
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try:
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_persist_prefetched_transcript(task_id, data.prefetched_transcript)
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except Exception as e:
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logger.warning(f"写入预取字幕失败 (task_id={task_id}): {e}")
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background_tasks.add_task(run_note_task, task_id, data.video_url, data.platform, data.quality, data.link,
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data.screenshot, data.model_name, data.provider_id, data.format, data.style,
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data.extras, data.video_understanding, data.video_interval, data.grid_size)
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return R.success({"task_id": task_id})
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except Exception as e:
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raise HTTPException(status_code=500, detail=str(e))
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@router.get("/task_status/{task_id}")
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def get_task_status(task_id: str):
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status_path = os.path.join(NOTE_OUTPUT_DIR, f"{task_id}.status.json")
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result_path = os.path.join(NOTE_OUTPUT_DIR, f"{task_id}.json")
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# 优先读状态文件
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if os.path.exists(status_path):
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with open(status_path, "r", encoding="utf-8") as f:
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status_content = json.load(f)
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status = status_content.get("status")
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message = status_content.get("message", "")
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if status == TaskStatus.SUCCESS.value:
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# 成功状态的话，继续读取最终笔记内容
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if os.path.exists(result_path):
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with open(result_path, "r", encoding="utf-8") as rf:
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result_content = json.load(rf)
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return R.success({
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"status": status,
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"result": result_content,
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"message": message,
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"task_id": task_id
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})
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else:
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# 理论上不会出现，保险处理
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return R.success({
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"status": TaskStatus.PENDING.value,
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"message": "任务完成，但结果文件未找到",
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"task_id": task_id
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})
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if status == TaskStatus.FAILED.value:
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return R.error(message or "任务失败", code=500)
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# 处理中状态
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return R.success({
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"status": status,
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"message": message,
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"task_id": task_id
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})
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# 没有状态文件，但有结果
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if os.path.exists(result_path):
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with open(result_path, "r", encoding="utf-8") as f:
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result_content = json.load(f)
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return R.success({
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"status": TaskStatus.SUCCESS.value,
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"result": result_content,
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"task_id": task_id
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})
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# 什么都没有，默认PENDING
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return R.success({
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"status": TaskStatus.PENDING.value,
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"message": "任务排队中",
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"task_id": task_id
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})
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@router.get("/image_proxy")
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async def image_proxy(request: Request, url: str):
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headers = {
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"Referer": "https://www.bilibili.com/",
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"User-Agent": request.headers.get("User-Agent", ""),
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}
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try:
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async with httpx.AsyncClient(timeout=10.0) as client:
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resp = await client.get(url, headers=headers)
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if resp.status_code != 200:
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raise HTTPException(status_code=resp.status_code, detail="图片获取失败")
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content_type = resp.headers.get("Content-Type", "image/jpeg")
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return StreamingResponse(
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resp.aiter_bytes(),
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media_type=content_type,
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headers={
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"Cache-Control": "public, max-age=86400", # 缓存一天
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"Content-Type": content_type,
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}
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)
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except Exception as e:
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raise HTTPException(status_code=500, detail=str(e))
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