feat(lr): 懒人听书平台接入——App 通道搜索、web 章节列表、账密登录取流

sdk/apis/lr.ts

@@ -0,0 +1,41 @@
+// 懒人听书 URL 获取（web 通道 getPlayPath，需登录）
+// 接口: https://m.lrts.me/ajax/getPlayPath?entityId=<bookId>&entityType=3&opType=1&sections=[<section>]&type=0
+// 实测（2026-10-02）：免费章节匿名也返回 status=2 "收费章节未购买"——必须携带 /login/lr 登录会话；
+// 成功响应 list[0].path 为音频直链。
+// songmid 为复合 id "<bookId>:<section>"（/album/lr 章节列表产出）；纯 bookId 视为第一章
+import { httpFetch } from '../request.ts'
+import { getLrCookie } from '../lr/auth.ts'
+
+const UA_MI = 'Mozilla/5.0 (Linux; U; Android 4.1.1; zh-cn; MI2 Build/JRO03L) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 XiaoMi/MiuiBrowser/1.0'
+const PLAY_URL = 'https://m.lrts.me/ajax/getPlayPath'
+
+export const supportQualitys = ['64k', '128k']
+
+export const getMusicUrl = (songInfo, type) => {
+  const requestObj = { cancelHttp() {}, promise: null as any }
+  const songmid = String(songInfo.songmid ?? '')
+  const [bookId, section = '1'] = songmid.split(':')
+
+  requestObj.promise = (async() => {
+    if (!bookId || !/^\d+$/.test(bookId)) throw new Error('懒人 id 需为 <bookId>[:<section>]（见 /album/lr 章节列表）')
+    const cookie = getLrCookie()
+    if (!cookie) throw new Error('懒人听书取流需要登录（POST /login/lr 绑定账号密码）')
+
+    const { statusCode, body } = await httpFetch(
+      `${PLAY_URL}?entityId=${bookId}&entityType=3&opType=1&sections=[${section}]&type=0`,
+      { headers: { 'User-Agent': UA_MI, Referer: 'https://m.lrts.me/', Cookie: cookie }, timeout: 15000 },
+    ).promise as any
+    const b = body ?? {}
+    if (statusCode != 200) throw new Error(`取流失败（HTTP ${statusCode}）`)
+    const path = b?.list?.[0]?.path
+    if (!path) {
+      if (b.status === 2) throw new Error(b.msg || '收费章节未购买（需账号已购/会员）')
+      if (String(b.msg || '').includes('登录')) throw new Error('登录态已失效，请重新 POST /login/lr')
+      throw new Error(b.msg || '取流失败')
+    }
+    return { type: type === '128k' ? '128k' : '64k', url: String(path) }
+  })()
+  return requestObj
+}
+
+export default { getMusicUrl }