framework: remove lodash and moment-timezone from deps

framework/framework/base.ts

@@ -1,12 +1,17 @@
 import { PassThrough } from 'stream';
 import type { Next } from 'koa';
-import { pick } from 'lodash';
 import {
     HydroRequest, HydroResponse, KoaContext, serializer,
 } from '@hydrooj/framework';
 import { errorMessage } from '@hydrooj/utils/lib/utils';
 import { SystemError, UserFacingError } from './error';
 
+const pick = <T extends object, K extends keyof T>(obj: T, keys: K[]): Pick<T, K> => {
+    const result: Partial<Pick<T, K>> = {};
+    for (const key of keys) result[key] = obj[key];
+    return result as Pick<T, K>;
+};
+
 export default (logger, xff, xhost) => async (ctx: KoaContext, next: Next) => {
     // Base Layer
     const request: HydroRequest = {
@@ -112,7 +117,7 @@ export default (logger, xff, xhost) => async (ctx: KoaContext, next: Next) => {
                 ctx.response.status = 302;
                 ctx.redirect(response.redirect);
             } else if (response.body) {
-                ctx.body = response.body instanceof Blob ? Buffer.from(await response.body.arrayBuffer()) : response.body;
+                ctx.body = response.body;
                 ctx.response.status = response.status || 200;
                 ctx.response.type = response.type
                     || (request.json

framework/framework/package.json

@@ -14,8 +14,6 @@
         "koa-body": "^6.0.1",
         "koa-compress": "^5.1.1",
         "koa-router": "^13.0.1",
-        "lodash": "^4.17.21",
-        "moment-timezone": "^0.5.48",
         "path-to-regexp": "^8.2.0",
         "sanitize-filename": "^1.6.3",
         "saslprep": "^1.0.3",
@@ -28,7 +26,6 @@
         "@types/koa": "^2.15.0",
         "@types/koa-compress": "^4.0.6",
         "@types/koa-router": "^7.4.8",
-        "@types/lodash": "^4.17.17",
         "@types/saslprep": "^1.0.3",
         "@types/ws": "^8.18.1"
     }

framework/framework/validator.ts

@@ -1,7 +1,5 @@
 import assert from 'assert';
 import emojiRegex from 'emoji-regex';
-import { isSafeInteger } from 'lodash';
-import moment from 'moment-timezone';
 import sanitize from 'sanitize-filename';
 import saslprep from 'saslprep';
 import Schema from 'schemastery';
@@ -107,9 +105,9 @@ export const Types = {
     ShortString: basicString(/^.{1,255}$/),
     String: basicString(),
 
-    Int: [(v) => +v, (v) => /^[+-]?[0-9]+$/.test(v.toString().trim()) && isSafeInteger(+v)],
-    UnsignedInt: [(v) => +v, (v) => /^(-0|\+?[0-9]+)$/.test(v.toString().trim()) && isSafeInteger(+v)],
-    PositiveInt: [(v) => +v, (v) => /^\+?[1-9][0-9]*$/.test(v.toString().trim()) && isSafeInteger(+v)],
+    Int: [(v) => +v, (v) => /^[+-]?[0-9]+$/.test(v.toString().trim()) && Number.isSafeInteger(+v)],
+    UnsignedInt: [(v) => +v, (v) => /^(-0|\+?[0-9]+)$/.test(v.toString().trim()) && Number.isSafeInteger(+v)],
+    PositiveInt: [(v) => +v, (v) => /^\+?[1-9][0-9]*$/.test(v.toString().trim()) && Number.isSafeInteger(+v)],
     Float: [(v) => +v, (v) => Number.isFinite(+v)],
 
     ObjectId: [() => { throw new Error('mongodb package not found'); }, () => true],
@@ -118,13 +116,15 @@ export const Types = {
         (v) => {
             const d = v.split('-');
             assert(d.length === 3);
+            assert(d[0].length === 4);
             return `${d[0]}-${d[1].length === 1 ? '0' : ''}${d[1]}-${d[2].length === 1 ? '0' : ''}${d[2]}`;
         },
         (v) => {
             const d = v.toString().split('-');
             if (d.length !== 3) return false;
+            if (d[0].length !== 4) return false;
             const st = `${d[0]}-${d[1].length === 1 ? '0' : ''}${d[1]}-${d[2].length === 1 ? '0' : ''}${d[2]}`;
-            return moment(st).isValid();
+            return Number.isFinite(new Date(st).getTime());
         },
     ],
     Time: [
@@ -136,7 +136,8 @@ export const Types = {
         (v) => {
             const t = v.toString().split(':');
             if (t.length !== 2) return false;
-            return moment(`2020-01-01 ${(t[0].length === 1 ? '0' : '') + t[0]}:${t[1].length === 1 ? '0' : ''}${t[1]}`).isValid();
+            const d = new Date(`2020-01-01 ${(t[0].length === 1 ? '0' : '') + t[0]}:${t[1].length === 1 ? '0' : ''}${t[1]}`);
+            return Number.isFinite(d.getTime());
         },
     ],
     Range: (range) => [