core: small enhancements

packages/fps-importer/index.ts

@@ -2,7 +2,7 @@
 import decodeHTML from 'decode-html';
 import xml2js from 'xml2js';
 import {
-    _, AdmZip, buildContent, ContentNode, Context, FileTooLargeError, fs,
+    _, AdmZip, BadRequestError, buildContent, ContentNode, Context, FileTooLargeError, fs,
     Handler, PERM, ProblemConfigFile, ProblemModel, SolutionModel, ValidationError,
 } from 'hydrooj';
 
@@ -12,6 +12,7 @@ class FpsProblemImportHandler extends Handler {
     }
 
     async run(domainId: string, result: any) {
+        if (!result?.fps) throw new BadRequestError('Selected file is not a valid FPS problemset.');
         for (const p of result.fps.item) {
             const content: ContentNode[] = [];
             if (p.description?.[0]) {

packages/hydrooj/setting.yaml

@@ -44,7 +44,7 @@ langs:
     c:
       compile: /usr/bin/gcc -Wall --std=c99 -o foo foo.c -lm
       highlight: c
-      monaco: cpp
+      monaco: c
       display: C
     cc:
       compile: /usr/bin/g++ -Wall -std=c++14 -o foo foo.cc -lm

packages/hydrooj/src/handler/problem.ts

@@ -648,10 +648,9 @@ export class ProblemEditHandler extends ProblemManageHandler {
     ) {
         if (newPid !== this.pdoc.pid && await problem.get(domainId, newPid)) throw new BadRequestError('new pid exists');
         const $update: Partial<ProblemDoc> = {
-            title, content, pid: newPid, hidden, assign, tag: tag ?? [], difficulty,
+            title, content, pid: newPid, hidden, assign, tag: tag ?? [], difficulty, html: false,
         };
-        let pdoc = await problem.get(domainId, pid);
-        pdoc = await problem.edit(domainId, pdoc.docId, $update);
+        const pdoc = await problem.edit(domainId, this.pdoc.docId, $update);
         this.response.redirect = this.url('problem_detail', { pid: newPid || pdoc.docId });
     }
 }

packages/hydrooj/src/lib/i18n.ts

@@ -58,15 +58,21 @@ function load(data: Record<string, Record<string, string>>) {
 
 export = load;
 
+function collect(lang: string) {
+    const s = translations[lang];
+    if (!(s instanceof Array)) return {};
+    const result = {};
+    for (let i = s.length - 1; i >= 0; i--) Object.assign(result, s[i]);
+    return result;
+}
+
 global.Hydro.locales = new Proxy(translations, {
     get(self, lang: string) {
         if (!self[lang]) return {};
         return new Proxy(self[lang], {
             get(s, key) {
                 if (typeof key === 'string') return app.i18n.get(key, lang);
-                const result = {};
-                for (let i = s.length - 1; i >= 0; i--) Object.assign(result, s[i]);
-                return result;
+                return Object.assign(collect(lang.split('_')[0]), collect(lang));
             },
             has(s, key: string) {
                 return !!s.find((i) => !!i[key]);

packages/prom-client/metrics.ts

@@ -3,6 +3,14 @@ import {
 } from 'prom-client';
 import { Context, db } from 'hydrooj';
 
+declare module 'hydrooj' {
+    interface Context {
+        metrics: Registry;
+    }
+}
+
+Context.service('metrics');
+
 export function createRegistry(ctx: Context) {
     const registry = new Registry();
 
@@ -61,5 +69,7 @@ export function createRegistry(ctx: Context) {
     });
 
     collectDefaultMetrics({ register: registry });
+
+    ctx.metrics = registry;
     return registry;
 }