mirror of
https://github.com/SoftEtherVPN/SoftEtherVPN.git
synced 2024-11-27 03:49:52 +03:00
604 lines
9.4 KiB
C#
604 lines
9.4 KiB
C#
using System;
|
|
using System.Text;
|
|
using System.Collections;
|
|
using System.Security.Cryptography;
|
|
using System.Web;
|
|
using System.IO;
|
|
using System.Drawing;
|
|
|
|
public class Util
|
|
{
|
|
public static string TruncStr(string str, int len)
|
|
{
|
|
if (str.Length <= len)
|
|
{
|
|
return str;
|
|
}
|
|
else
|
|
{
|
|
return str.Substring(len);
|
|
}
|
|
}
|
|
|
|
public static string GenRand()
|
|
{
|
|
return ByteToStr(Hash(Guid.NewGuid().ToByteArray()));
|
|
}
|
|
|
|
public static bool StrCmpi(string s1, string s2)
|
|
{
|
|
try
|
|
{
|
|
if (s1.ToUpper() == s2.ToUpper())
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
catch
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public static bool StrCmp(string s1, string s2)
|
|
{
|
|
try
|
|
{
|
|
if (s1 == s2)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
catch
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public static Encoding UTF8()
|
|
{
|
|
return Encoding.UTF8;
|
|
}
|
|
|
|
public static Encoding EucJP()
|
|
{
|
|
return Encoding.GetEncoding("euc-jp");
|
|
}
|
|
|
|
public static Encoding ShiftJIS()
|
|
{
|
|
return Encoding.GetEncoding("shift_jis");
|
|
}
|
|
|
|
public static byte[] Hash(string str)
|
|
{
|
|
return Hash(Encoding.UTF8.GetBytes(str));
|
|
}
|
|
|
|
public static byte[] Hash(byte[] data)
|
|
{
|
|
SHA1 sha1 = SHA1.Create();
|
|
return sha1.ComputeHash(data);
|
|
}
|
|
|
|
public static string ByteToStr(byte[] data)
|
|
{
|
|
StringBuilder sb = new StringBuilder();
|
|
foreach (byte b in data)
|
|
{
|
|
sb.Append(b.ToString("X2"));
|
|
}
|
|
|
|
return sb.ToString();
|
|
}
|
|
|
|
public static string RandToStr6(string rand)
|
|
{
|
|
byte[] hash = Hash(rand + "packetix.net");
|
|
return ByteToStr(hash).Substring(0, 6);
|
|
}
|
|
|
|
public static bool CheckImageRand(string rand, string str)
|
|
{
|
|
string s = RandToStr6(rand);
|
|
string tmp = str.ToUpper();
|
|
tmp = tmp.Replace("O", "0").Replace("I", "1");
|
|
return StrCmpi(s, tmp);
|
|
}
|
|
|
|
public static bool IsAscii(char c)
|
|
{
|
|
if (c >= '0' && c <= '9')
|
|
{
|
|
return true;
|
|
}
|
|
if (c >= 'A' && c <= 'Z')
|
|
{
|
|
return true;
|
|
}
|
|
if (c >= 'a' && c <= 'z')
|
|
{
|
|
return true;
|
|
}
|
|
if (c == '!' || c == '\"' || c == '#' || c == '$' || c == '%' || c == '&' || c == '\'' ||
|
|
c == '(' || c == ')' || c == '-' || c == ' ' || c == '=' || c == '~' || c == '^' || c == '_' ||
|
|
c == '\\' || c == '|' || c == '{' || c == '}' || c == '[' || c == ']' || c == '@' ||
|
|
c == '*' || c == '+' || c == '.' || c == '<' || c == '>' ||
|
|
c == ',' || c == '?' || c == '/')
|
|
{
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
public static bool IsAscii(string str)
|
|
{
|
|
foreach (char c in str)
|
|
{
|
|
if (IsAscii(c) == false)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static bool CheckMailAddress(string str)
|
|
{
|
|
str = str.Trim();
|
|
if (str.Length == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
string[] tokens = str.Split('@');
|
|
|
|
if (tokens.Length != 2)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
string a = tokens[0];
|
|
string b = tokens[1];
|
|
|
|
if (a.Length == 0 || b.Length == 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (b.IndexOf(".") == -1)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return IsAscii(str);
|
|
}
|
|
|
|
public static string GetFileSizeStr(int size)
|
|
{
|
|
if (size >= 1024 * 1024)
|
|
{
|
|
return ((double)(size) / 1024.0f / 1024.0f).ToString(".##") + " MB";
|
|
}
|
|
if (size >= 1024)
|
|
{
|
|
return ((double)(size) / 1024.0f).ToString(".##") + " KB";
|
|
}
|
|
return ((double)(size)).ToString() + " Bytes";
|
|
}
|
|
|
|
|
|
public static string IntToStr(int i)
|
|
{
|
|
return i.ToString();
|
|
}
|
|
public static string IntToStr(uint i)
|
|
{
|
|
return i.ToString();
|
|
}
|
|
|
|
public static string LongToStr(long i)
|
|
{
|
|
return i.ToString();
|
|
}
|
|
public static string LongToStr(ulong i)
|
|
{
|
|
return i.ToString();
|
|
}
|
|
|
|
public static int StrToInt(string str)
|
|
{
|
|
try
|
|
{
|
|
return int.Parse(str);
|
|
}
|
|
catch
|
|
{
|
|
try
|
|
{
|
|
return (int)double.Parse(str);
|
|
}
|
|
catch
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
public static uint StrToUInt(string str)
|
|
{
|
|
try
|
|
{
|
|
return uint.Parse(str);
|
|
}
|
|
catch
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
public static long StrToLong(string str)
|
|
{
|
|
try
|
|
{
|
|
return long.Parse(str);
|
|
}
|
|
catch
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
public static ulong StrToULong(string str)
|
|
{
|
|
try
|
|
{
|
|
return ulong.Parse(str);
|
|
}
|
|
catch
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
public static DateTime StrToDate(string str)
|
|
{
|
|
DateTime ret = new DateTime(0);
|
|
str = str.Trim();
|
|
if (str.Length == 8)
|
|
{
|
|
int year = StrToInt(str.Substring(0, 4));
|
|
int month = StrToInt(str.Substring(4, 2));
|
|
int day = StrToInt(str.Substring(6, 2));
|
|
|
|
ret = new DateTime(year, month, day);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
public static string SafeSql(string str)
|
|
{
|
|
return str.Replace("'", "");
|
|
}
|
|
|
|
public static bool IsFileExists(string name)
|
|
{
|
|
try
|
|
{
|
|
return File.Exists(name);
|
|
}
|
|
catch
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public static string GetDefaultDocumentIfExists(string dir)
|
|
{
|
|
string[] targets =
|
|
{
|
|
"default.aspx",
|
|
"default.asp",
|
|
"default.html",
|
|
"default.htm",
|
|
"index.html",
|
|
"index.htm",
|
|
};
|
|
|
|
foreach (string s in targets)
|
|
{
|
|
string name = dir + s;
|
|
|
|
if (IsFileExists(name))
|
|
{
|
|
return name;
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public static string ReadHtmlFile(string filename)
|
|
{
|
|
return File.ReadAllText(filename, Encoding.GetEncoding("shift_jis"));
|
|
}
|
|
|
|
public static string GetAlternativeTitleFromHtml(string src)
|
|
{
|
|
string tmp;
|
|
string upper;
|
|
int i;
|
|
|
|
upper = src.ToLower();
|
|
i = upper.IndexOf("</at>");
|
|
if (i == -1)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
tmp = src.Substring(0, i);
|
|
|
|
i = tmp.IndexOf("<at>");
|
|
if (i == -1)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
string ret = tmp.Substring(i + 4);
|
|
|
|
if (ret.Length == 0)
|
|
{
|
|
return null;
|
|
}
|
|
else
|
|
{
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
public static string GetTitleFromHtml(string src)
|
|
{
|
|
string tmp;
|
|
string upper;
|
|
int i;
|
|
|
|
upper = src.ToLower();
|
|
i = upper.IndexOf("</title>");
|
|
if (i == -1)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
tmp = src.Substring(0, i);
|
|
|
|
i = tmp.IndexOf("<title>");
|
|
if (i == -1)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
return tmp.Substring(i + 7);
|
|
}
|
|
|
|
public static string GetTitleFromHtmlFile(string filename)
|
|
{
|
|
return GetTitleFromHtml(ReadHtmlFile(filename));
|
|
}
|
|
public static string GetAlternativeTitleFromHtmlFile(string filename)
|
|
{
|
|
return GetAlternativeTitleFromHtml(ReadHtmlFile(filename));
|
|
}
|
|
|
|
public static string GetUrlFileNameFromPath(string url)
|
|
{
|
|
string folder = GetUrlDirNameFromPath(url);
|
|
|
|
return url.Substring(folder.Length);
|
|
}
|
|
|
|
public static string GetUrlDirNameFromPath(string url)
|
|
{
|
|
string ret = "";
|
|
string[] strs = url.Split('/');
|
|
int i;
|
|
if (strs.Length >= 1)
|
|
{
|
|
for (i = 0; i < strs.Length - 1; i++)
|
|
{
|
|
ret += strs[i] + "/";
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
public static string Encode64(string str)
|
|
{
|
|
return Convert.ToBase64String(Encoding.UTF8.GetBytes(str)).Replace("/", "(").Replace("+", ")");
|
|
}
|
|
|
|
public static string Decode64(string str)
|
|
{
|
|
return Encoding.UTF8.GetString(Convert.FromBase64String(str.Replace(")", "+").Replace("(", "/")));
|
|
}
|
|
|
|
public static string RemoveDefaultHtml(string url)
|
|
{
|
|
string tmp = url.ToLower();
|
|
if (tmp.EndsWith("/default.asp") || tmp.EndsWith("/default.aspx") || tmp.EndsWith("/default.htm") || tmp.EndsWith("/default.html"))
|
|
{
|
|
return GetUrlDirNameFromPath(url);
|
|
}
|
|
else
|
|
{
|
|
return url;
|
|
}
|
|
}
|
|
|
|
public static string RemovePortFromHostHeader(string str)
|
|
{
|
|
try
|
|
{
|
|
string[] ret = str.Split(':');
|
|
|
|
return ret[0];
|
|
}
|
|
catch
|
|
{
|
|
return str;
|
|
}
|
|
}
|
|
|
|
public static string ToStr3(ulong v)
|
|
{
|
|
string tmp = LongToStr(v);
|
|
int len, i;
|
|
string tmp2 = "";
|
|
|
|
len = tmp.Length;
|
|
|
|
for (i = len - 1; i >= 0; i--)
|
|
{
|
|
tmp2 += tmp[i];
|
|
}
|
|
|
|
tmp = "";
|
|
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
if (i != 0 && (i % 3) == 0)
|
|
{
|
|
tmp += ",";
|
|
}
|
|
tmp += tmp2[i];
|
|
}
|
|
|
|
tmp2 = "";
|
|
len = tmp.Length;
|
|
|
|
for (i = len - 1; i >= 0; i--)
|
|
{
|
|
tmp2 += tmp[i];
|
|
}
|
|
|
|
return tmp2;
|
|
}
|
|
|
|
public static string DateTimeToStr(DateTime dt)
|
|
{
|
|
return DateTimeToStr(dt, false);
|
|
}
|
|
public static string DateTimeToStr(DateTime dt, bool toLocalTime)
|
|
{
|
|
if (toLocalTime)
|
|
{
|
|
dt = dt.ToLocalTime();
|
|
}
|
|
|
|
return dt.ToString("yyyy年M月d日(ddd) H時m分s秒");
|
|
}
|
|
|
|
public static byte[] IntToByte(uint value)
|
|
{
|
|
MemoryStream st = new MemoryStream();
|
|
BinaryWriter w = new BinaryWriter(st);
|
|
w.Write(value);
|
|
st.Seek(0, SeekOrigin.Begin);
|
|
return st.ToArray();
|
|
}
|
|
|
|
public static uint ByteToInt(byte[] b)
|
|
{
|
|
MemoryStream st = new MemoryStream();
|
|
st.Write(b, 0, b.Length);
|
|
st.Seek(0, SeekOrigin.Begin);
|
|
BinaryReader r = new BinaryReader(st);
|
|
return r.ReadUInt32();
|
|
}
|
|
|
|
public static byte[] ReverseByteArray(byte[] b)
|
|
{
|
|
int i, num, j;
|
|
num = b.Length;
|
|
byte[] ret = new byte[num];
|
|
j = 0;
|
|
|
|
for (i = num - 1; i >= 0; i--)
|
|
{
|
|
ret[j++] = b[i];
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
public static uint ReverseEndian(uint value)
|
|
{
|
|
return ByteToInt(ReverseByteArray(IntToByte(value)));
|
|
}
|
|
|
|
public static string SafeDomainStr(string str)
|
|
{
|
|
string ret = str.Replace("(", "").Replace(")", "").Replace(" ", "").Replace("-", "").Replace("#", "")
|
|
.Replace("%", "").Replace("%", "").Replace("&", "").Replace(".", "");
|
|
if (ret == "")
|
|
{
|
|
ret = "host";
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
public static bool CompareByte(byte[] b1, byte[] b2)
|
|
{
|
|
if (b1.Length != b2.Length)
|
|
{
|
|
return false;
|
|
}
|
|
int i, len;
|
|
len = b1.Length;
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
if (b1[i] != b2[i])
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static int CompareByteRetInt(byte[] b1, byte[] b2)
|
|
{
|
|
int i;
|
|
for (i = 0; ; i++)
|
|
{
|
|
int a1 = -1, a2 = -1;
|
|
if (b1.Length < i)
|
|
{
|
|
a1 = (int)b1[i];
|
|
}
|
|
if (b2.Length < i)
|
|
{
|
|
a2 = (int)b2[i];
|
|
}
|
|
|
|
if (a1 > a2)
|
|
{
|
|
return 1;
|
|
}
|
|
else if (a1 < a2)
|
|
{
|
|
return -1;
|
|
}
|
|
if (a1 == -1 && a2 == -1)
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
public static byte[] CloneByteArray(byte[] src)
|
|
{
|
|
return (byte[])src.Clone();
|
|
}
|
|
}
|