vjudge: allow alternative endpoint

packages/vjudge/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@hydrooj/vjudge",
-    "version": "1.0.11",
+    "version": "1.0.12",
     "description": "Submit problems to remote oj",
     "main": "package.json",
     "repository": "https://github.com/hydro-dev/Hydro.git",

packages/vjudge/src/interface.ts

@@ -4,6 +4,7 @@ export interface RemoteAccount {
     cookie?: string[];
     handle: string;
     password: string;
+    endpoint?: string;
 }
 declare module 'hydrooj/dist/interface' {
     interface Collections {

packages/vjudge/src/providers/codeforces.ts

@@ -38,12 +38,12 @@ export default class CodeforcesProvider implements IBasicProvider {
 
     get(url: string) {
         logger.debug('get', url);
-        return superagent.get(`https://codeforces.com${url}`).set('Cookie', this.cookie);
+        return superagent.get(`${this.account.endpoint || 'https://codeforces.com'}${url}`).set('Cookie', this.cookie);
     }
 
     post(url: string) {
         logger.debug('post', url, this.cookie);
-        return superagent.post(`https://codeforces.com${url}`).type('form').set('Cookie', this.cookie);
+        return superagent.post(`${this.account.endpoint || 'https://codeforces.com'}${url}`).type('form').set('Cookie', this.cookie);
     }
 
     tta(_39ce7: string) {