fix: recognize qdreader uid from response body

docs/qx-rewrite-lessons.md

@@ -55,7 +55,8 @@ Autman 插件保留快捷命令：
 ## 验证清单
 
 - `node --check js/qdreader_cookie.js`
-- raw 地址返回 HTTP 200：
+- `node tests/qdreader_cookie.test.mjs`
+- raw 地址返回 HTTP 200:
   - `conf/qdreader.conf`
   - `js/qdreader_cookie.js`
 - 订阅文本内容第一行是 `hostname = ...`，第二行是 rewrite rule。

js/qdreader_cookie.js

@@ -25,21 +25,40 @@ function parseCookie(cookie) {
   return jar
 }
 function b64decode(s) {
-  try { return decodeURIComponent(escape(atob(String(s || '')))) } catch (e) { return '' }
+  let raw = String(s || '').trim()
+  try { raw = decodeURIComponent(raw) } catch (e) {}
+  raw = raw.replace(/-/g, '+').replace(/_/g, '/')
+  while (raw.length % 4) raw += '='
+  try { return decodeURIComponent(escape(atob(raw))) } catch (e) { return '' }
 }
 function uidFromQDHeader(qdheader) {
   const decoded = b64decode(qdheader)
   return decoded ? String(decoded.split('|')[0] || '').trim() : ''
 }
 function parseJson(s, def) { try { return JSON.parse(s) } catch (e) { return def } }
+function findUid(obj) {
+  if (!obj || typeof obj !== 'object') return ''
+  const keys = ['UserId', 'userId', 'UserID', 'userid', 'uid', 'UID']
+  for (const key of keys) {
+    const val = obj[key]
+    if (val !== undefined && val !== null && String(val).trim()) return String(val).trim()
+  }
+  for (const key in obj) {
+    const val = obj[key]
+    if (val && typeof val === 'object') {
+      const found = findUid(val)
+      if (found) return found
+    }
+  }
+  return ''
+}
 function getUid(cookie, body) {
   const jar = parseCookie(cookie)
   let uid = uidFromQDHeader(jar.QDHeader || jar.qdheader || jar.QDHEADER || '')
   if (uid) return uid
   if (jar.uid) return String(jar.uid)
   const obj = parseJson(body || '', null)
-  uid = obj && obj.Data && obj.Data.UserInfo && (obj.Data.UserInfo.UserId || obj.Data.UserInfo.userId)
-  return uid ? String(uid) : ''
+  return findUid(obj)
 }
 function notify(title, sub, msg, opts) {
   try { $notify(title, sub || '', msg || '', opts || {}) } catch (e) { $notify(title, sub || '', msg || '') }

tests/qdreader_cookie.test.mjs

@@ -0,0 +1,52 @@
+import assert from 'node:assert/strict';
+import fs from 'node:fs';
+import vm from 'node:vm';
+
+const code = fs.readFileSync(new URL('../js/qdreader_cookie.js', import.meta.url), 'utf8');
+
+function run({ cookie = '', body = '' }) {
+  const notices = [];
+  const context = {
+    $request: { headers: { Cookie: cookie } },
+    $response: { body },
+    $notify: (...args) => notices.push(args),
+    $done: () => {},
+    atob: (s) => Buffer.from(s, 'base64').toString('binary'),
+    encodeURIComponent,
+    decodeURIComponent,
+    escape,
+  };
+  vm.runInNewContext(code, context);
+  return notices;
+}
+
+{
+  const qdheader = Buffer.from('123456|device|more').toString('base64').replace(/=+$/, '');
+  const notices = run({ cookie: `QDHeader=${encodeURIComponent(qdheader)}; QDH=abc` });
+  assert.equal(notices[0][1], '抓取成功 uid:123456');
+  assert.match(notices[0][2], /^启点ck /);
+}
+
+{
+  const notices = run({
+    cookie: 'cmfuToken=abc; QDH=def',
+    body: JSON.stringify({ Data: { UserId: 987654 } }),
+  });
+  assert.equal(notices[0][1], '抓取成功 uid:987654');
+}
+
+{
+  const notices = run({
+    cookie: 'cmfuToken=abc; QDH=def',
+    body: JSON.stringify({ Data: { UserInfo: { UserId: 2468 } } }),
+  });
+  assert.equal(notices[0][1], '抓取成功 uid:2468');
+}
+
+{
+  const notices = run({ cookie: 'cmfuToken=abc; QDH=def', body: '{}' });
+  assert.equal(notices[0][1], 'Cookie 获取失败');
+  assert.match(notices[0][2], /无法识别 uid/);
+}
+
+console.log('ok - qdreader qx uid parsing');