Utils
Util.cs
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
namespace QQ.Framework.Utils
{
public static clast Util
{
private static readonly Encoding DefaultEncoding = Encoding.GetEncoding(QQGlobal.QQCharsetDefault);
private static readonly DateTime BaseDateTime = DateTime.Parse("1970-1-01 08:00:00.000");
public static Random Random = new Random();
///
/// 把字节数组从offset开始的len个字节转换成一个unsigned int，
/// 2008-02-15 14:47
///
/// 字节数组
/// 从哪里开始转换.
/// 转换长度, 如果len超过8则忽略后面的.
///
public static uint GetUInt(byte[] inData, int offset, int len)
{
uint ret = 0;
int end;
if (len > 8)
{
end = offset + 8;
}
else
{
end = offset + len;
}
for (var i = 0; i < end; i++)
{
ret 8);
array[1] = (byte) (int) (paramLong >> 16);
array[0] = (byte) (int) (paramLong >> 24);
return array;
}
public static string ConvertStringToHex(string text, string separator = null)
{
var bytes = Encoding.UTF8.GetBytes(text);
return ToHex(bytes);
}
public static string GetQQNum(string six)
{
return Convert.ToInt64(six.Replace(" ", ""), 16).ToString();
}
public static ulong GetQQNumRetUint(string six)
{
return Convert.ToUInt64(six.Replace(" ", ""), 16);
}
///
/// 转换hex 长度不够前置补0
///
///
///
///
public static string NumToHexString(long qq, int length = 8)
{
var text = Convert.ToString(qq, 16);
if (text.Length == length)
{
return text;
}
if (text.Length > length)
{
return null;
}
var num = length - text.Length;
var str = "";
for (var i = 0; i < num; i++)
{
str += "0";
}
text = (str + text).ToUpper();
var stringBuilder = new StringBuilder();
for (var j = 0; j < text.Length; j++)
{
stringBuilder.Append(text[j]);
if ((j + 1) % 2 == 0)
{
stringBuilder.Append(" ");
}
}
return stringBuilder.ToString();
}
public static string ConvertHexToString(string hexValue)
{
var bytes = HexStringToByteArray(hexValue);
return Encoding.UTF8.GetString(bytes);
}
///
/// 根据某种编码方式将字节数组转换成字符串
///
/// 字节数组
/// encoding 编码方式
/// 如果encoding不支持，返回一个缺省编码的字符串
public static string GetString(byte[] b, string encoding = QQGlobal.QQCharsetDefault)
{
try
{
return Encoding.GetEncoding(encoding).GetString(b);
}
catch
{
return Encoding.Default.GetString(b);
}
}
///
/// 根据某种编码方式将字节数组转换成字符串
/// 2008-02-22
///
/// The b.
/// The offset.
/// The len.
/// The encoding.
///
public static string GetString(byte[] b, int offset, int len, string encoding = QQGlobal.QQCharsetDefault)
{
var temp = new byte[len];
Array.Copy(b, offset, temp, 0, len);
return GetString(temp, encoding);
}
///
/// 把字符串转换成int
///
/// 字符串
/// 如果转换失败，返回这个值
///
public static int GetInt(string s, int defaultValue)
{
return int.TryParse(s, out var value) ? value : defaultValue;
}
///
/// 字符串转二进制字数组
///
/// The s.
///
public static byte[] GetBytes(string s)
{
return DefaultEncoding.GetBytes(s);
}
///
/// 一个随机产生的密钥字节数组
///
///
public static byte[] RandomKey()
{
var key = new byte[QQGlobal.QQLengthKey];
new Random().NextBytes(key);
return key;
}
///
/// 一个随机产生的密钥字节数组
///
///
public static byte[] RandomKey(int length)
{
var key = new byte[length];
new Random().NextBytes(key);
return key;
}
///
/// 用于代替 System.currentTimeMillis()
///
/// The date time.
///
public static long GetTimeMillis(DateTime dateTime)
{
return (long) (dateTime - BaseDateTime).TotalMilliseconds;
}
public static long GetTimeSeconds(DateTime dateTime)
{
return (long) (dateTime - BaseDateTime).TotalSeconds;
}
///
/// 根据服务器返回的毫秒表示的日期，获得实际的日期
///
/// The millis.
///
public static DateTime GetDateTimeFromMillis(long millis)
{
return BaseDateTime.AddTicks(millis * TimeSpan.TicksPerSecond);
}
///
/// 判断IP是否全0
///
/// The ip.
///
public static bool IsIPZero(byte[] ip)
{
return ip.All(t => t == 0);
}
///
/// ip的字节数组形式转为字符串形式的ip
///
/// The ip.
///
public static string GetIpStringFromBytes(byte[] ip)
{
return $"{ip[0]}.{ip[1]}.{ip[2]}.{ip[3]}";
}
public static string ToHex(byte[] bs, string newLine = "", string format = "{0} ")
{
var num = 0;
var stringBuilder = new StringBuilder();
foreach (var b in bs)
{
if (num++ % 16 == 0)
{
stringBuilder.Append(newLine);
}
stringBuilder.AppendFormat(format, b.ToString("X2"));
}
return stringBuilder.ToString().Trim();
}
public static byte[] IPStringToByteArray(string ip)
{
var array = new byte[4];
var array2 = ip.Split('.');
if (array2.Length == 4)
{
for (var i = 0; i < 4; i++)
{
array[i] = (byte) int.Parse(array2[i]);
}
}
return array;
}
///
/// 获取本地外网 IP
///
///
public static string GetExternalIp()
{
var mc = Regex.Match(
new HttpClient().GetStringAsync("http://www.net.cn/static/customercare/yourip.asp").Result,
@"您的本地上网IP是：(\d+\.\d+\.\d+\.\d+)");
if (mc.Success && mc.Groups.Count > 1)
{
return mc.Groups[1].Value;
}
throw new Exception("获取IP失败");
}
///
/// 根据域名获取IP
///
/// 域名
///
public static string GetHostAddresses(string hostname)
{
var ips = Dns.GetHostAddresses(hostname);
return ips[0].ToString();
}
public static string GetBkn(string skey)
{
var num = 5381;
for (var i = 0; i 24);
tempByteArray[index + 1] = (byte) ((num & 0x00ff0000) >> 16);
tempByteArray[index + 2] = (byte) ((num & 0x0000ff00) >> 8);
tempByteArray[index + 3] = (byte) (num & 0x000000ff);
}
public static int buf_to_int16(byte[] tempByteArray, long index)
{
return (tempByteArray[index] 