core: add log for send-mail-error

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.20.1",
+    "version": "2.20.2",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",

packages/hydrooj/src/handler/discussion.ts

@@ -15,6 +15,7 @@ import { PERM, PRIV } from '../model/builtin';
 import {
     Route, Handler, Types, param,
 } from '../service/server';
+import * as bus from '../service/bus';
 import { isTitle, isContent } from '../lib/validator';
 
 export const typeMapper = {
@@ -165,6 +166,11 @@ class DiscussionCreateHandler extends DiscussionHandler {
         else name = _name;
         if (highlight) this.checkPerm(PERM.PERM_HIGHLIGHT_DISCUSSION);
         if (pin) this.checkPerm(PERM.PERM_PIN_DISCUSSION);
+        await bus.serial(
+            'discussion/before-add',
+            domainId, typeMapper[type], name, this.user._id,
+            title, content, this.request.ip, highlight, pin,
+        );
         const did = await discussion.add(
             domainId, typeMapper[type], name, this.user._id,
             title, content, this.request.ip, highlight, pin,

packages/hydrooj/src/lib/mail.ts

@@ -1,5 +1,8 @@
 import nodemailer from 'nodemailer';
 import { SendMailError } from '../error';
+import { Logger } from '../logger';
+
+const logger = new Logger('mail');
 
 export async function sendMail(to: string, subject: string, text: string, html: string) {
     let t: unknown;
@@ -29,6 +32,7 @@ export async function sendMail(to: string, subject: string, text: string, html:
             });
         });
     } catch (e) {
+        logger.error(e);
         throw new SendMailError(to);
     }
     return t;

packages/hydrooj/src/service/bus.ts

@@ -1,6 +1,8 @@
 /* eslint-disable no-await-in-loop */
 import cluster from 'cluster';
-import { Db, FilterQuery, OnlyFieldsOfType } from 'mongodb';
+import type {
+    Db, FilterQuery, ObjectID, OnlyFieldsOfType,
+} from 'mongodb';
 import { argv } from 'yargs';
 import { Logger } from '../logger';
 import type {
@@ -57,6 +59,12 @@ export interface EventMap {
         $set: any, $unset: OnlyFieldsOfType<DocType[T], any, true | '' | 1>
     ) => VoidReturn
 
+    'discussion/before-add': (
+        domainId: string, parentType: number, parentId: ObjectID | number | string,
+        owner: number, title: string, content: string,
+        ip: string | null, highlight: boolean, pin: boolean
+    ) => VoidReturn
+
     'problem/before-edit': (doc: Partial<Pdoc>) => VoidReturn
     'problem/edit': (doc: Pdoc) => VoidReturn
     'problem/list': (query: FilterQuery<Pdoc>, handler: any) => VoidReturn