core&utils: remove outdated code

packages/hydrooj/src/lib/avatar.ts

@@ -1,4 +1,4 @@
-import { md5 } from './crypto';
+import { md5 } from '../utils';
 
 type AvatarProvider = (src: string, size: number) => string;
 

packages/hydrooj/src/lib/crypto.ts

@@ -1,13 +0,0 @@
-import crypto from 'crypto';
-
-const encrypt = (algorithm, content) => {
-    const hash = crypto.createHash(algorithm);
-    hash.update(content);
-    return hash.digest('hex');
-};
-
-export const sha1 = (content: string) => encrypt('sha1', content);
-export const md5 = (content: string) => encrypt('md5', content);
-
-global.Hydro.lib.md5 = md5;
-global.Hydro.lib.sha1 = sha1;

packages/hydrooj/src/lib/download.ts

@@ -1,22 +0,0 @@
-import fs from 'fs';
-import superagent, { SuperAgentRequest } from 'superagent';
-
-async function _download(url: string, path: string, retry: number) {
-    const w = fs.createWriteStream(path);
-    superagent.get(url).retry(retry).pipe(w);
-    await new Promise((resolve, reject) => {
-        w.on('finish', resolve);
-        w.on('error', reject);
-    });
-    return path;
-}
-
-function download(url: string): SuperAgentRequest;
-function download(url: string, path?: string, retry = 3) {
-    if (path) return _download(url, path, retry);
-    return superagent.get(url).retry(retry);
-}
-
-export = download;
-
-global.Hydro.lib.download = download;

packages/hydrooj/src/lib/index.ts

@@ -1,9 +1,6 @@
-import './jwt';
-import './download';
 import './i18n';
 import './mail';
 import './useragent';
-import './crypto';
 import './paginate';
 import './hash.hydro';
 import './rank';

packages/hydrooj/src/lib/jwt.ts

@@ -1,35 +0,0 @@
-function decodeBase64WithUriEncoding(encodedText: string) {
-    return Buffer.from(encodedText, 'base64').toString('utf8');
-}
-
-function unescapedString(escapedString: string) {
-    escapedString += new Array(5 - (escapedString.length % 4)).join('=');
-    return escapedString.replace(/-/g, '+').replace(/_/g, '/');
-}
-
-function decodeJWT(idToken: string) {
-    const token = idToken.split('.');
-    if (token.length !== 3) {
-        throw new Error('Invalid idToken');
-    }
-    try {
-        const headerSegment = JSON.parse(decodeBase64WithUriEncoding(token[0]));
-        const payloadSegment = JSON.parse(decodeBase64WithUriEncoding(token[1]));
-        const signature = unescapedString(token[2]);
-        return {
-            dataToSign: [token[0], token[1]].join('.'),
-            header: headerSegment,
-            payload: payloadSegment,
-            signature,
-        };
-    } catch (e) {
-        throw new Error('Invalid payload');
-    }
-}
-
-export function decode(idToken: string) {
-    const decodedJWT = decodeJWT(idToken);
-    return decodedJWT.payload;
-}
-
-global.Hydro.lib.jwt = { decode };

packages/hydrooj/src/lib/ui.ts

@@ -1,33 +1,22 @@
-import { Dictionary, isNull } from 'lodash';
 import { PERM, PRIV } from '../model/builtin';
 
 const trueChecker = () => true;
-const Checker = (perm: bigint, priv: number, checker: Function = trueChecker) => (handler) => (
+const Checker = (perm: bigint | bigint[], priv: number | number[], checker: Function = trueChecker) => (handler) => (
     checker(handler)
     && (perm ? handler.user.hasPerm(perm) : true)
     && (priv ? handler.user.hasPriv(priv) : true)
 );
-const buildChecker = (...permPrivChecker: Array<number | bigint | Function>) => {
-    let _priv: number;
-    let _perm: bigint;
+const buildChecker = (...permPrivChecker: Array<number | bigint | Function | number[] | bigint[]>) => {
+    let _priv: number | number[];
+    let _perm: bigint | bigint[];
     let checker: Function = trueChecker;
     for (const item of permPrivChecker) {
-        if (item instanceof Object && !isNull(item)) {
-            if (item instanceof Array) {
-                if (typeof item[0] === 'number') {
-                    // @ts-ignore
-                    _priv = item;
-                } else if (typeof item[0] === 'bigint') {
-                    // @ts-ignore
-                    _perm = item;
-                }
-            } else if (typeof item.call !== 'undefined') {
-                checker = item;
-            }
-        } else if (typeof item === 'number') {
-            _priv = item;
-        } else if (typeof item === 'bigint') {
-            _perm = item;
+        if (typeof item === 'function') checker = item;
+        else if (typeof item === 'number') _priv = item;
+        else if (typeof item === 'bigint') _perm = item;
+        else if (item instanceof Array) {
+            if (typeof item[0] === 'number') _priv = item as number[];
+            else _perm = item as bigint[];
         }
     }
     return Checker(_perm, _priv, checker);
@@ -51,7 +40,7 @@ export const Nav = (
 };
 
 export const ProblemAdd = (
-    name: string, args: Dictionary<any> = {}, icon = 'add', text = 'Create Problem',
+    name: string, args: Record<string, any> = {}, icon = 'add', text = 'Create Problem',
 ) => {
     global.Hydro.ui.nodes.problem_add.push({
         name, args, icon, text,
@@ -59,7 +48,7 @@ export const ProblemAdd = (
 };
 
 export const UserDropdown = (
-    name: string, args: Dictionary<any> = {}, ...permPrivChecker: Array<number | bigint | Function>
+    name: string, args: Record<string, any> = {}, ...permPrivChecker: Array<number | bigint | Function>
 ) => {
     global.Hydro.ui.nodes.user_dropdown.push({
         name, args: args || {}, checker: buildChecker(...permPrivChecker),