core: fix accept check on problem solution (#574)

packages/hydrooj/src/handler/problem.ts

@@ -822,7 +822,7 @@ export class ProblemSolutionHandler extends ProblemDetailHandler {
     async get(domainId: string, page = 1, tid?: ObjectId, sid?: ObjectId) {
         if (tid) throw new PermissionError(PERM.PERM_VIEW_PROBLEM_SOLUTION);
         this.response.template = 'problem_solution.html';
-        const accepted = this.tsdoc?.status === STATUS.STATUS_ACCEPTED;
+        const accepted = this.psdoc?.status === STATUS.STATUS_ACCEPTED;
         if (!accepted || !this.user.hasPerm(PERM.PERM_VIEW_PROBLEM_SOLUTION_ACCEPT)) {
             this.checkPerm(PERM.PERM_VIEW_PROBLEM_SOLUTION);
         }
@@ -933,7 +933,7 @@ export class ProblemSolutionRawHandler extends ProblemDetailHandler {
     @param('tid', Types.ObjectId, true)
     async get(domainId: string, psid: ObjectId, psrid?: ObjectId, tid?: ObjectId) {
         if (tid) throw new PermissionError(PERM.PERM_VIEW_PROBLEM_SOLUTION);
-        const accepted = this.tsdoc?.status === STATUS.STATUS_ACCEPTED;
+        const accepted = this.psdoc?.status === STATUS.STATUS_ACCEPTED;
         if (!accepted || !this.user.hasPerm(PERM.PERM_VIEW_PROBLEM_SOLUTION_ACCEPT)) {
             this.checkPerm(PERM.PERM_VIEW_PROBLEM_SOLUTION);
         }