w: merge migration packages

packages/migrate/lib.ts

@@ -0,0 +1,23 @@
+import { md5, sha1 } from 'hydrooj/src/lib/crypto';
+
+const RE_MD5 = /^[\da-f]{32}$/;
+
+global.Hydro.lib['hash.hust'] = ($password: string, $saved: string) => {
+    $password = md5($password);
+    if (RE_MD5.test($saved)) return $password === $saved;
+    const $svd = Buffer.from($saved, 'base64').toString('hex');
+    const $salt = Buffer.from($svd.substr(40), 'hex').toString();
+    const $hash = Buffer.concat([
+        Buffer.from(sha1($password + $salt), 'hex'),
+        Buffer.from($salt),
+    ]).toString('base64');
+    if ($hash.trim() === $saved.trim()) return true;
+    return false;
+};
+
+global.Hydro.lib['hash.vj2'] = (password: string, salt: string, udoc: { uname: string; unameLower: string }) => {
+    const { uname, unameLower } = udoc;
+    const pmd5 = md5(password);
+    const mixedSha1 = sha1(md5(unameLower + pmd5) + salt + sha1(pmd5 + salt));
+    return `${Buffer.from(uname).toString('base64')}|${mixedSha1}`;
+};