core: add lang existance check

2 years ago · 25741ac300
parent 29dd5645c1
commit 25741ac300
1 changed files with 1 additions and 1 deletions
--- a/packages/hydrooj/src/handler/problem.ts
+++ b/packages/hydrooj/src/handler/problem.ts
@ -506,7 +506,7 @@ export class ProblemSubmitHandler extends ProblemDetailHandler {
        if (typeof config === 'string' || config === null) throw new ProblemConfigError();
        if (config.type === 'objective') {
            lang = '_';
-        } else if ((config.langs && !config.langs.includes(lang)) || setting.langs[lang].disabled) {
+        } else if ((config.langs && !config.langs.includes(lang)) || !setting.langs[lang] || setting.langs[lang].disabled) {
            throw new ProblemNotAllowLanguageError();
        }
        if (pretest) {