core: fix bugs (#702)

packages/hydrooj/src/handler/contest.ts

@@ -473,6 +473,7 @@ export class ContestEditHandler extends Handler {
         if (beginAtMoment.isSameOrAfter(endAt)) throw new ValidationError('duration');
         const beginAt = beginAtMoment.toDate();
         const lockAt = lock ? moment(endAt).add(-lock, 'minutes').toDate() : null;
+        if (lockAt && contestDuration) throw new ValidationError('lockAt', 'duration');
         await problem.getList(domainId, pids, this.user.hasPerm(PERM.PERM_VIEW_PROBLEM_HIDDEN) || this.user._id, true);
         if (tid) {
             await contest.edit(domainId, tid, {

packages/hydrooj/src/handler/manage.ts

@@ -254,6 +254,7 @@ class SystemUserImportHandler extends SystemHandler {
                             groups[data.group].push(email);
                         }
                         if (data.school) payload.school = data.school;
+                        if (data.studentId) payload.studentId = data.studentId;
                     } catch (e) { }
                     udocs.push({
                         email, username, password, displayName, payload,

packages/hydrooj/src/handler/problem.ts

@@ -489,19 +489,12 @@ export class ProblemSubmitHandler extends ProblemDetailHandler {
         const langRange = (typeof this.pdoc.config === 'object' && this.pdoc.config.langs)
             ? Object.fromEntries(this.pdoc.config.langs.map((i) => [i, setting.langs[i]?.display || i]))
             : setting.SETTINGS_BY_KEY.codeLang.range;
-        this.response.body = {
-            langRange,
-            pdoc: this.pdoc,
-            udoc: this.udoc,
-            tdoc: this.tdoc,
-            tsdoc: this.tsdoc,
-            title: this.pdoc.title,
-            page_name: this.tdoc
-                ? this.tdoc.rule === 'homework'
-                    ? 'homework_detail_problem_submit'
-                    : 'contest_detail_problem_submit'
-                : 'problem_submit',
-        };
+        this.response.body.langRange = langRange;
+        this.response.body.page_name = this.tdoc
+            ? this.tdoc.rule === 'homework'
+                ? 'homework_detail_problem_submit'
+                : 'contest_detail_problem_submit'
+            : 'problem_submit';
     }
 
     @param('lang', Types.Name)