91 lines
2.3 KiB
C#
91 lines
2.3 KiB
C#
using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Xml.Linq;
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namespace Barotrauma
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{
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public class Md5Hash
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{
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public string Hash { get; private set; }
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public string ShortHash { get; private set; }
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public Md5Hash(string md5Hash)
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{
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this.Hash = md5Hash;
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ShortHash = GetShortHash(md5Hash);
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}
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public Md5Hash(byte[] bytes)
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{
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Hash = CalculateHash(bytes);
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ShortHash = GetShortHash(Hash);
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}
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public Md5Hash(FileStream fileStream)
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{
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Hash = CalculateHash(fileStream);
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ShortHash = GetShortHash(Hash);
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}
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public Md5Hash(XDocument doc)
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{
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if (doc == null) return;
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string docString = Regex.Replace(doc.ToString(), @"\s+", "");
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byte[] inputBytes = Encoding.ASCII.GetBytes(docString);
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Hash = CalculateHash(inputBytes);
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ShortHash = GetShortHash(Hash);
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}
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public override string ToString()
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{
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return Hash;
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}
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private string CalculateHash(FileStream stream)
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{
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using (MD5 md5 = MD5.Create())
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{
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byte[] byteHash = md5.ComputeHash(stream);
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// step 2, convert byte array to hex string
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StringBuilder sb = new StringBuilder();
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for (int i = 0; i < byteHash.Length; i++)
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{
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sb.Append(byteHash[i].ToString("X2"));
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}
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return sb.ToString();
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}
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}
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private string CalculateHash(byte[] bytes)
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{
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using (MD5 md5 = MD5.Create())
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{
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byte[] byteHash = md5.ComputeHash(bytes);
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// step 2, convert byte array to hex string
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StringBuilder sb = new StringBuilder();
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for (int i = 0; i < byteHash.Length; i++)
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{
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sb.Append(byteHash[i].ToString("X2"));
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}
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return sb.ToString();
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}
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}
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public static string GetShortHash(string fullHash)
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{
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return fullHash.Length < 7 ? fullHash : fullHash.Substring(0, 7);
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}
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}
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}
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