diff --git a/packages/hydrooj/src/handler/contest.ts b/packages/hydrooj/src/handler/contest.ts
index 2b49e7abb..57082f314 100644
--- a/packages/hydrooj/src/handler/contest.ts
+++ b/packages/hydrooj/src/handler/contest.ts
@@ -825,6 +825,7 @@ export interface ScoreboardView<T extends { [key: string]: keyof BuiltinInput |
     cacheTime?: number; // in seconds
     args: T;
     display: (this: ContestScoreboardHandler, args: ParseArgs<T>) => Promise<void>;
+    checker?: (this: ContestScoreboardHandler) => boolean;
 }
 
 export class ContestScoreboardHandler extends ContestDetailBaseHandler {
@@ -884,16 +885,17 @@ class ScoreboardService extends Service {
 
     addView<T extends { [key: string]: keyof BuiltinInput | AnyFunction | Type<any> }>(
         id: string, name: string, args: T,
-        { display, supportedRules, cacheTime }: {
+        { display, supportedRules, cacheTime, checker }: {
             display: (this: ContestScoreboardHandler, args: ParseArgs<T>) => Promise<void>;
             supportedRules: string[];
             cacheTime?: number;
+            checker?: (this: ContestScoreboardHandler) => boolean;
         },
     ) {
         if (this.views[id]) throw new Error(`View ${id} already exists`);
         this.ctx.effect(() => {
             this.views[id] = {
-                id, name, args, display, supportedRules, cacheTime,
+                id, name, args, display, supportedRules, cacheTime, checker,
             };
             return () => {
                 delete this.views[id];
@@ -901,9 +903,11 @@ class ScoreboardService extends Service {
         });
     }
 
-    getAvailableViews(rule: string) {
-        return Object.fromEntries(Object.values(this.views).filter((i) => i.supportedRules.includes(rule) || i.supportedRules.includes('*'))
-            .map((i) => [i.id, i.name]));
+    getAvailableViews(rule: string, handler: ContestScoreboardHandler) {
+        return Object.fromEntries(Object.values(this.views).filter((i) => (
+            (i.supportedRules.includes(rule) || i.supportedRules.includes('*'))
+            && (!i.checker || i.checker.call(handler))
+        )).map((i) => [i.id, i.name]));
     }
 
     getView(id: string) {
@@ -963,7 +967,7 @@ export async function apply(ctx: Context) {
                 const page_name = tdoc.rule === 'homework'
                     ? 'homework_scoreboard'
                     : 'contest_scoreboard';
-                const availableViews = scoreboard.getAvailableViews(tdoc.rule);
+                const availableViews = scoreboard.getAvailableViews(tdoc.rule, this);
                 this.response.body = {
                     tdoc: this.tdoc, tsdoc: this.tsdocAsPublic(), rows, udict, pdict, page_name, groups, availableViews,
                 };
diff --git a/packages/onsite-toolkit/index.ts b/packages/onsite-toolkit/index.ts
index db44e709e..7ef7af2ac 100644
--- a/packages/onsite-toolkit/index.ts
+++ b/packages/onsite-toolkit/index.ts
@@ -144,6 +144,7 @@ export function apply(ctx: Context, config: ReturnType<typeof Config>) {
                 ...lockDuration && {
                     scoreboard_freeze_duration: moment().startOf('day').seconds(lockDuration).format('HH:mm:ss.SSS'),
                 },
+                scoreboard_type: tdoc.rule === 'acm' ? 'pass-fail' : 'score',
                 penalty_time: 20,
             }),
             ...Object.keys(STATUS_SHORT_TEXTS).map((i) => getFeed('judgement-types', {
@@ -265,7 +266,12 @@ export function apply(ctx: Context, config: ReturnType<typeof Config>) {
                 if (!ContestModel.isDone(tdoc)) throw new ContestNotEndedError();
                 this.binary(await generateCdpZip(tdoc), `contest-${tdoc._id}-cdp.zip`);
             },
-            supportedRules: ['acm', 'oi'],
+            checker() {
+                return ContestModel.isDone(this.tdoc)
+                    && !!this.tdoc.lockAt
+                    && (this.user.own(this.tdoc) || this.user.hasPerm(PERM.PERM_EDIT_CONTEST));
+            },
+            supportedRules: ['acm', 'oi', 'ioi'],
         });
 
         scoreboard.addView('resolver', 'Resolver', { tdoc: 'tdoc' }, {
@@ -279,10 +285,15 @@ export function apply(ctx: Context, config: ReturnType<typeof Config>) {
                 const source = new URL(`/d/${tdoc.domainId}/contest/${tdoc._id}/resolver-cdp/${tokenId}`, SystemModel.get('server.url')).toString();
                 const target = new URL('https://resolver.hydrooj.com');
                 target.searchParams.set('source', source);
-                target.searchParams.set('mode', tdoc.rule === 'oi' ? 'oi' : 'acm');
+                target.searchParams.set('mode', tdoc.rule === 'acm' ? 'acm' : 'oi');
                 this.response.redirect = target.toString();
             },
-            supportedRules: ['acm', 'oi'],
+            checker() {
+                return ContestModel.isDone(this.tdoc)
+                    && !!this.tdoc.lockAt
+                    && (this.user.own(this.tdoc) || this.user.hasPerm(PERM.PERM_EDIT_CONTEST));
+            },
+            supportedRules: ['acm', 'oi', 'ioi'],
         });
     });