Fix ranklists of hidden contests accessible by URL

modules/contest.js

@@ -131,7 +131,7 @@ app.get('/contest/:id', async (req, res) => {
 
     let contest = await Contest.fromID(contest_id);
     if (!contest) throw new ErrorMessage('无此比赛。');
-    if (!contest.is_public && (!res.locals.user || !res.locals.user.is_admin)) throw new ErrorMessage('无此比赛。');
+    if (!contest.is_public && (!res.locals.user || !res.locals.user.is_admin)) throw new ErrorMessage('比赛未公开，请耐心等待 (´∀ `)');
 
     const isSupervisior = await contest.isSupervisior(curUser);
     contest.running = contest.isRunning();
@@ -232,6 +232,7 @@ app.get('/contest/:id/ranklist', async (req, res) => {
     const curUser = res.locals.user;
 
     if (!contest) throw new ErrorMessage('无此比赛。');
+    if (!contest.is_public && (!res.locals.user || !res.locals.user.is_admin)) throw new ErrorMessage('比赛未公开，请耐心等待 (´∀ `)');
     if ([contest.allowedSeeingResult() && contest.allowedSeeingOthers(),
     contest.isEnded(),
     await contest.isSupervisior(curUser)].every(x => !x))
@@ -290,7 +291,7 @@ app.get('/contest/:id/submissions', async (req, res) => {
   try {
     let contest_id = parseInt(req.params.id);
     let contest = await Contest.fromID(contest_id);
-    if (!contest) throw new ErrorMessage('无此比赛。');
+    if (!contest.is_public && (!res.locals.user || !res.locals.user.is_admin)) throw new ErrorMessage('比赛未公开，请耐心等待 (´∀ `)');
 
     if (contest.isEnded()) {
       res.redirect(syzoj.utils.makeUrl(['submissions'], { contest: contest_id }));