feat(sdk): 新增咪咕/千千/JOOX/哔哩哔哩/5sing/Apple Music 六平台
平台注册表由 9 个扩到 15 个，同时补齐 sdk/types.ts 的类型与 OpenAPI 文档里的能力位声明。 - migu：命中 Z3D/I3D 加密候选时不返回直链，改由服务端解密代理出流， SDK 侧只负责登记票据，避免客户端拿到无法播放的密文 - apple：只提供 preview 试听片段（完整曲为 DRM），标 noAggregate 排除在跨平台精确匹配之外，防止用它顶掉其它平台的可播结果 - 其余平台按既有 PlatformModule 约定实现搜索/专辑/歌单/歌词 为什么合并成一次提交：六平台共用同一份注册表与能力位声明， 拆开会产生互相引用、单独无法通过类型检查的中间态。
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// Bilibili 取流（上游 bilibili/bilibili.go 的 fetchAudioURL + account.go 的 IsVipAccount）
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// 接口: https://api.bilibili.com/x/player/playurl?fnval=&qn=127&bvid=&cid=
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// fnval=80 标准 DASH（匿名可用）
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// fnval=4048 额外请求 FLAC/Hi-Res/Dolby（上游逻辑：大会员才用；实测匿名请求该参数也不报错，只是没有 flac 节点）
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// 档位选择沿用上游优先级：Hi-Res FLAC(30251) → Dolby(30250) → DASH 标准最高档(30280/30232/30216) → durl 兜底；
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// 仅当显式请求 64k 时优先 30216（上游无此参数意识，移植补的最小档位选择）。
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// 302：httpFetch 不跟随重定向，这里用 `GET + Range: bytes=0-0` 手动跟跳最多 3 跳（HEAD 会被 CDN 404，不能用），
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// 失败时回退原始地址，保证客户端仍能自行跟跳。
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// 参考 Referer/UA 必须携带，否则 CDN 可能 403。
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import { httpFetch } from '../common/request.ts'
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import { biliHeaders, fetchView, getCookie, parseSongId } from '../bili/util.ts'
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// 与 routes.ts 的 QUALITIES 枚举对齐（132k/192k 为 B 站实际档位，命中时按实际返回）
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export const supportQualitys = ['64k', '128k', '320k', 'flac', 'flac24bit']
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const QUALITY_LABEL: Record<number, string> = {
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30216: '64k',
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30232: '132k',
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30280: '192k',
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30250: 'flac',
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30251: 'flac24bit',
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}
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let vipCache: { value: boolean, at: number } | null = null
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/** 登录态清空/更新后调用，丢弃大会员判断缓存 */
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export const resetVipCache = () => {
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vipCache = null
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}
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/** 上游 IsVipAccount：x/web-interface/nav 的 isLogin + vipStatus + vipType（进程内缓存 5 分钟） */
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export const isVipAccount = async(cookie: string): Promise<boolean> => {
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if (!cookie) return false
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if (vipCache && Date.now() - vipCache.at < 5 * 60 * 1000) return vipCache.value
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try {
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const { body } = await httpFetch('https://api.bilibili.com/x/web-interface/nav', {
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headers: biliHeaders(cookie),
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timeout: 15000,
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}).promise as any
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const data = body?.data ?? {}
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const vip = body?.code === 0 && !!data.isLogin && Number(data.vipStatus) === 1 && Number(data.vipType) > 0
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vipCache = { value: vip, at: Date.now() }
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return vip
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} catch {
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return false
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}
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}
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const pickAudio = (data: any, type: string): { id: number, url: string, label: string } | null => {
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const dash = data?.dash ?? {}
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const flac = dash?.flac?.audio
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const hires = flac && Number(flac.id) === 30251 && flac.baseUrl ? { id: 30251, url: String(flac.baseUrl) } : null
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const dolby = (dash?.dolby?.audio ?? []).find((a: any) => Number(a?.id) === 30250 && a?.baseUrl)
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const standards: any[] = (dash?.audio ?? [])
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.filter((a: any) => a?.baseUrl)
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.sort((a: any, b: any) => Number(b.id) - Number(a.id))
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if (type === '64k') {
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const low = standards.find(a => Number(a.id) === 30216)
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if (low) return { id: 30216, url: String(low.baseUrl), label: QUALITY_LABEL[30216] }
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}
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// 上游优先级：Hi-Res FLAC → Dolby → 最高标准档
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if (hires) return { ...hires, label: QUALITY_LABEL[30251] }
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if (dolby) return { id: 30250, url: String(dolby.baseUrl), label: QUALITY_LABEL[30250] }
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if (standards.length) {
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const best = standards[0]
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return { id: Number(best.id), url: String(best.baseUrl), label: QUALITY_LABEL[Number(best.id)] ?? `audio-${best.id}` }
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}
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const durl = data?.durl?.[0]?.url
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if (durl) return { id: 0, url: String(durl), label: 'durl' }
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return null
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}
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/** 播放地址 API（上游 fetchAudioURL 的等价实现，返回 { type, url }；不做 CDN 跟跳） */
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export const getAudioUrl = async(bvid: string, cid: string | number, type = '128k'): Promise<{ type: string, url: string }> => {
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const cookie = await getCookie()
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const needFlac = type === 'flac' || type === 'flac24bit'
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const vip = await isVipAccount(cookie)
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const fnval = needFlac || vip ? 4048 : 80
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const url = `https://api.bilibili.com/x/player/playurl?fnval=${fnval}&qn=127&bvid=${encodeURIComponent(bvid)}&cid=${encodeURIComponent(String(cid))}`
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const { statusCode, body } = await httpFetch(url, { headers: biliHeaders(cookie), timeout: 15000 }).promise as any
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if (statusCode !== 200 || !body || typeof body !== 'object') throw new Error(`B站取流失败（HTTP ${statusCode}）`)
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if (body.code !== 0) throw new Error(`B站取流失败（${body.code}${body.message ? `: ${body.message}` : ''}）`)
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const picked = pickAudio(body.data, type)
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if (!picked) throw new Error('B站未返回可用音频流')
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return { type: picked.label, url: picked.url }
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}
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/** 手动跟随 CDN 302（GET + Range 只读首字节；失败回退当前地址） */
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const followRedirects = async(url: string, cookie: string, tracker?: { current: any }): Promise<string> => {
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let current = String(url)
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for (let hop = 0; hop < 3; hop++) {
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let response: any
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try {
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const request = httpFetch(current, {
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method: 'get',
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headers: { ...biliHeaders(cookie), Range: 'bytes=0-0' },
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timeout: 15000,
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})
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if (tracker) tracker.current = request
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response = await request.promise
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} catch {
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return current
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}
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const statusCode = Number(response?.statusCode) || 0
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const location = response?.headers?.location
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if (statusCode >= 300 && statusCode < 400 && location) {
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try {
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current = new URL(String(location), current).href
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continue
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} catch {
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return current
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}
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}
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return current
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}
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return current
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}
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/**
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* 统一取流接口：apis('bili').getMusicUrl(songInfo, type) → { promise, cancelHttp }
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* promise resolve → { type, url }（type 为实际命中档位，可能高于/低于请求档位）
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* songInfo.songmid 约定 `<bvid>|<cid>`；仅给 bvid 时回源 view 取首P cid。
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*/
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export const getMusicUrl = (songInfo: any, type: string) => {
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const tracker: { current: any } = { current: null }
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const requestObj: any = {
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cancelHttp() {
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try {
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tracker.current?.cancelHttp?.()
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} catch {
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// ignore
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}
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},
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promise: null as any,
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}
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requestObj.promise = (async() => {
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const { bvid, cid } = parseSongId(songInfo?.songmid ?? songInfo?.id)
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if (!bvid) throw new Error('bili songmid 需为 <bvid>|<cid> 格式')
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let realCid = cid
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if (!realCid) {
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const view = await fetchView(bvid)
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realCid = String(view?.pages?.[0]?.cid ?? '')
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}
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if (!realCid) throw new Error('B站未找到视频 cid（可能已失效）')
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const info = await getAudioUrl(bvid, realCid, type)
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const cookie = await getCookie()
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const finalUrl = await followRedirects(info.url, cookie, tracker)
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return { type: info.type, url: finalUrl }
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})()
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return requestObj
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}
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export default { getMusicUrl }
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