draft: 从hustoj导入数据

packages/migrate-hustoj/lib.ts

@@ -0,0 +1,12 @@
+import { } from 'hydrooj';
+
+const { md5, sha1 } = global.Hydro.lib;
+const RE_MD5 = /^[\da-fA-F]{32}$/;
+
+function hash(password: string, stored: string) {
+    if (RE_MD5.test(stored)) return md5(password) === stored;
+    const salt = Buffer.from(stored, 'base64').toString().substr(0, 20);
+    return Buffer.from(sha1(password + salt).substr(0, 20) + salt).toString('base64') === stored;
+}
+
+global.Hydro.lib['hash.hust'] = hash;