fix cqcode again

src/index.tsx

@@ -17,7 +17,7 @@ export * from './config';
 import { OneBotBot } from '@koishijs/plugin-adapter-onebot';
 
 interface WhoSession extends Quester.File {
-  ips: string[];
+  ips: Set<string>;
   data: Buffer;
 }
 
@@ -66,7 +66,7 @@ export default class WhoViewsPlugin extends StarterPlugin(
       ctx.status = 404;
       return (ctx.body = 'Not found');
     }
-    whoSession.ips.push(ctx.ip);
+    whoSession.ips.add(ctx.ip);
     ctx.type = whoSession.mime;
     ctx.body = whoSession.data;
     ctx.set('content-length', whoSession.data.length.toString());
@@ -81,7 +81,11 @@ export default class WhoViewsPlugin extends StarterPlugin(
     try {
       const info = await this.http.file(picUrl);
       const id = `${Random.id(20)}.${info.filename.split('.').pop()}`;
-      this.sessions.set(id, { ...info, ips: [], data: Buffer.from(info.data) });
+      this.sessions.set(id, {
+        ...info,
+        ips: new Set(),
+        data: Buffer.from(info.data),
+      });
       const pathWithoutSlash = this.config.path.replace(/^\//, '');
       const sessionUrl = `${
         this.config.selfUrl || this.ctx.root.config.selfUrl
@@ -89,7 +93,7 @@ export default class WhoViewsPlugin extends StarterPlugin(
       const messageSuffix = `让我 ${this.config.waitTime} 秒后康康谁在窥屏。`;
       if (session.platform === 'onebot') {
         const bot = session.bot as OneBotBot;
-        const messageOnebot = `[CQ:xml,data=<?xml version="1.0" encoding="UTF-8" standalone="yes"?><msg serviceID="1"><item><title>${messageSuffix}</title></item><source name="窥屏检测" icon="${sessionUrl}" action="" appid="-1" /></msg>]`;
+        const messageOnebot = `[CQ:cardimage,file=${sessionUrl},source=${messageSuffix},icon=${sessionUrl}]`;
         if (session.guildId) {
           await bot.internal.sendGroupMsg(session.guildId, messageOnebot);
         } else {
@@ -103,7 +107,7 @@ export default class WhoViewsPlugin extends StarterPlugin(
       await new Promise((resolve) =>
         setTimeout(resolve, this.config.waitTime * 1000),
       );
-      const ips = this.sessions.get(id)?.ips || [];
+      const ips = [...(this.sessions.get(id)?.ips?.values() || [])];
       this.sessions.delete(id);
       if (!ips.length) return '没人窥屏。';
       return `有 ${ips.length} 人窥屏：\n\n${ips