75 lines
2.6 KiB
C#
75 lines
2.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Linq;
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using System.IO;
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using System.Security.Cryptography;
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namespace Saviour_Backup_System
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{
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class tools
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{
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public static string Trim(string value, int maxLength)
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{
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if (value.Length > maxLength)
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{
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return value.Substring(0, maxLength - 3) + "...";
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}
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return value;
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}
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public static string hash(string input)
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{
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// step 1, calculate MD5 hash from input
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MD5 md5 = MD5.Create();
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byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(input);
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byte[] hash = md5.ComputeHash(inputBytes);
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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 < hash.Length; i++)
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{
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sb.Append(hash[i].ToString("X2"));
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}
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return sb.ToString();
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}
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public static Int64 getUnixTimeStamp() { return (Int64)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds; }
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public static string hashDirectory(string path)
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{
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// assuming you want to include nested folders
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var files = Directory.GetFiles(path, "*.*", SearchOption.AllDirectories)
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.OrderBy(p => p).ToList();
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MD5 md5 = MD5.Create();
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for (int i = 0; i < files.Count; i++)
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{
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string file = files[i];
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// hash path
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string relativePath = file.Substring(path.Length + 1);
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byte[] pathBytes = Encoding.UTF8.GetBytes(relativePath.ToLower());
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md5.TransformBlock(pathBytes, 0, pathBytes.Length, pathBytes, 0);
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// hash contents
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byte[] contentBytes = File.ReadAllBytes(file);
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if (i == files.Count - 1)
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md5.TransformFinalBlock(contentBytes, 0, contentBytes.Length);
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else
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md5.TransformBlock(contentBytes, 0, contentBytes.Length, contentBytes, 0);
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}
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return BitConverter.ToString(md5.Hash).Replace("-", "").ToLower();
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}
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public static DateTime unixDateTime(long unixTimeStamp)
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{
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// Unix timestamp is seconds past epoch
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System.DateTime dtDateTime = new DateTime(1970, 1, 1, 0, 0, 0, 0, System.DateTimeKind.Utc);
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dtDateTime = dtDateTime.AddSeconds(unixTimeStamp).ToLocalTime();
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return dtDateTime;
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}
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}
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}
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