@baileys-md/baileys/lib/WAUSync/Protocols/USyncDeviceProtocol.js

Baileys WhatsApp API

//========================================//
 

import { assertNodeErrorFree, getBinaryNodeChild } from "../../WABinary/index.js";

export class USyncDeviceProtocol {
  constructor() {
    this.name = "devices";
  }
  getQueryElement() {
    return {
      tag: "devices",
      attrs: {
        version: "2"
      }
    };
  }
  getUserElement() {
    return null;
  }
  parser(node) {
    const deviceList = [];
    let keyIndex = undefined;
    if (node.tag === "devices") {
      assertNodeErrorFree(node);
      const deviceListNode = getBinaryNodeChild(node, "device-list");
      const keyIndexNode = getBinaryNodeChild(node, "key-index-list");
      if (Array.isArray(deviceListNode?.content)) {
        for (const { tag, attrs } of deviceListNode.content) {
          const id = +attrs.id;
          const keyIndex = +attrs["key-index"];
          if (tag === "device") {
            deviceList.push({
              id,
              keyIndex,
              isHosted: !!(attrs["is_hosted"] && attrs["is_hosted"] === "true")
            });
          }
        }
      }
      if (keyIndexNode?.tag === "key-index-list") {
        keyIndex = {
          timestamp: +keyIndexNode.attrs["ts"],
          signedKeyIndex: keyIndexNode?.content,
          expectedTimestamp: keyIndexNode.attrs["expected_ts"] ? +keyIndexNode.attrs["expected_ts"] : undefined
        };
      }
    }
    return {
      deviceList,
      keyIndex
    };
  }
}