core: add support for unlink oauth account

packages/hydrooj/src/handler/home.ts

@@ -259,6 +259,13 @@ class HomeSecurityHandler extends Handler {
         await this.ctx.oauth.providers[platform].get.call(this);
     }
 
+    @param('platform', Types.String)
+    async postUnlinkAccount({ }, platform: string) {
+        if (!this.ctx.oauth.providers[platform]) throw new ValidationError('platform');
+        await this.ctx.oauth.unbind(platform, this.user._id);
+        this.back();
+    }
+
     @param('tokenDigest', Types.String)
     async postDeleteToken({ }, tokenDigest: string) {
         const sessions = await token.getSessionListByUid(this.user._id);

packages/hydrooj/src/model/oauth.ts

@@ -50,7 +50,7 @@ export default class OauthModel extends Service {
 
     async [Context.init]() {
         await this.ctx.db.ensureIndexes(this.coll,
-            // { key: { platform: 1, id: 1 }, name: 'platform_id', unique: true },
+            { key: { platform: 1, id: 1 }, name: 'platform_id', unique: true },
             { key: { uid: 1, platform: 1 }, name: 'uid_platform' },
         );
     }
@@ -70,8 +70,8 @@ export default class OauthModel extends Service {
         return res?.uid;
     }
 
-    async unbind(platform: string, id: string, uid: number) {
+    async unbind(platform: string, uid: number) {
-        await this.coll.deleteOne({ platform, id, uid });
+        await this.coll.deleteOne({ platform, uid });
     }
 
     async list(uid: number) {