wechaty-puppet-wechat4u/src/wechat4u/messages/message-emotion.ts

Wechat4u Puppet for Wechaty

/* eslint-disable @typescript-eslint/no-unnecessary-condition */
import { xmlToJson } from '../utils/xml-to-json.js'
import type { WebMessageRawPayload } from '../../web-schemas.js'

interface EmotionXmlSchema {
  msg: {
    emoji: {
      $: {
        type: string;
        len: string;
        cdnurl: string;
        width: string;
        height: string;
        md5: string;
      };
    };
    gameext: {
      $: {
        content: string;
        type: string;
      };
    };
  };
}

export interface EmojiMessagePayload {
  type: number;
  len: number;
  md5: string;
  cdnurl: string;
  width: number;
  height: number;
  gameext?: string;
}

export async function parseEmotionMessagePayload (message: WebMessageRawPayload): Promise<EmojiMessagePayload> {
  const jsonPayload: EmotionXmlSchema = await xmlToJson(message.Content)

  const len = parseInt(jsonPayload.msg.emoji.$.len, 10) || 0
  const width = parseInt(jsonPayload.msg.emoji.$.width, 10) || 0
  const height = parseInt(jsonPayload.msg.emoji.$.height, 10) || 0
  const cdnurl = jsonPayload.msg.emoji.$.cdnurl
  const type = parseInt(jsonPayload.msg.emoji.$.type, 10) || 0
  const md5 = jsonPayload.msg.emoji.$.md5

  let gameext
  if (jsonPayload.msg.gameext) {
    const gameextType = parseInt(jsonPayload.msg.gameext.$.type, 10) || 0
    const gameextContent = parseInt(jsonPayload.msg.gameext.$.content, 10) || 0
    gameext = `<gameext type="${gameextType}" content="${gameextContent}" ></gameext>`
  }

  return {
    cdnurl,
    gameext,
    height,
    len,
    md5,
    type,
    width,
  }
}

export function generateEmotionPayload (emojiMessagePayload: EmojiMessagePayload): string {
  return `<msg><emoji cdnurl="${emojiMessagePayload.cdnurl}" len="${emojiMessagePayload.len}" md5="${
    emojiMessagePayload.md5
  }" type="${emojiMessagePayload.type}"/>${emojiMessagePayload.gameext || ''}</msg>`
}