frida框架hook常用字符串转换模板总结

function ab2str(buf) {
    return new Uint16Array(buf)
    // encodedString = String.fromCodePoint.apply(null, new Uint16Array(buf));
    // // decodedString = encodeURI(encodedString);//没有这一步中文会乱码
    // // console.log(decodedString);
    // return encodedString
}

function str2ab(str) {
    var buf = new ArrayBuffer(str.length * 2); // 每个字符占用2个字节
    var bufView = new Uint16Array(buf);
    for (var i = 0, strLen = str.length; i < strLen; i++) {
        bufView[i] = str.charCodeAt(i);
    }
    return buf;
}

function stringToUint8Array(str){
  var arr = [];
  for (var i = 0, j = str.length; i < j; ++i) {
    arr.push(str.charCodeAt(i));
  }

  var tmpUint8Array = new Uint8Array(arr);
  return tmpUint8Array
}

function Uint8ArrayToString(fileData){
    console.log(fileData)
  var dataString = "";
  for (var i = 0; i < fileData.length; i++) {
    dataString += String.fromCharCode(fileData[i]);
  }

  return dataString
}

function byteToHexString(uint8arr) {
    if (!uint8arr) {
        return '';
    }
    var hexStr = '';
    for (var i = 0; i < uint8arr.length; i++) {
        var hex = (uint8arr[i] & 0xff).toString(16);
        hex = (hex.length === 1) ? '0' + hex : hex;
        hexStr += hex;
    }

    return hexStr.toUpperCase();
}