core: support auto delete submission files

packages/hydrooj/src/model/storage.ts

@@ -102,6 +102,16 @@ export class StorageModel {
 }
 
 async function cleanFiles() {
+    const submissionKeepDate = system.get('submission.saveDays');
+    if (submissionKeepDate) {
+        const shouldDelete = moment().subtract(submissionKeepDate, 'day').toDate();
+        const res = await StorageModel.coll.find({
+            path: /^submission\//g,
+            lastModified: { $lt: shouldDelete },
+        }).toArray();
+        const paths = res.map((i) => i.path);
+        await StorageModel.del(paths);
+    }
     if (system.get('server.keepFiles')) return;
     let res = await StorageModel.coll.findOneAndDelete({ autoDelete: { $lte: new Date() } });
     while (res.value) {
@@ -122,7 +132,7 @@ bus.once('app/started', async () => {
         await TaskModel.add({
             type: 'schedule',
             subType: 'storage.prune',
-            executeAfter: moment().minute(0).second(0).millisecond(0).toDate(),
+            executeAfter: moment().startOf('hour').toDate(),
             interval: [1, 'hour'],
         });
     }

packages/hydrooj/src/service/server.ts

@@ -519,7 +519,7 @@ export class Handler extends HandlerCommon {
 
     async init({ domainId }) {
         let error;
-        if (!argv.options.benchmark && !this.notUsage) await this.limitRate('global', 10, 88);
+        if (!argv.options.benchmark && !this.notUsage) await this.limitRate('global', 5, 88);
         const [absoluteDomain, inferDomain, bdoc] = await Promise.all([
             domain.get(domainId),
             domain.getByHost(this.request.host),