2012-01-24 09:33:30 +00:00
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// SparkleShare, a collaboration and sharing tool.
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2013-10-11 15:13:46 +00:00
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// Copyright (C) 2010 Hylke Bons <hylkebons@gmail.com>
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2012-01-24 09:33:30 +00:00
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//
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// This program is free software: you can redistribute it and/or modify
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2013-10-11 15:13:46 +00:00
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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2012-01-24 09:33:30 +00:00
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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2013-10-11 15:13:46 +00:00
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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2012-01-24 09:33:30 +00:00
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using System;
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using System.IO;
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2012-07-28 13:58:09 +00:00
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using System.Security.Cryptography;
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using System.Text;
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2012-01-24 09:33:30 +00:00
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namespace SparkleLib {
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public static class Extensions {
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2012-07-28 13:58:09 +00:00
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public static string Combine (this string [] parts)
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2012-01-24 09:33:30 +00:00
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{
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string new_path = "";
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foreach (string part in parts)
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new_path = Path.Combine (new_path, part);
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return new_path;
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}
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2012-07-28 13:58:09 +00:00
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public static string SHA1 (this string s)
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{
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2012-08-04 18:55:29 +00:00
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SHA1 sha1 = new SHA1CryptoServiceProvider ();
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byte [] bytes = ASCIIEncoding.Default.GetBytes (s);
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byte [] sha1_bytes = sha1.ComputeHash (bytes);
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2012-07-28 13:58:09 +00:00
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2012-08-04 18:55:29 +00:00
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return BitConverter.ToString (sha1_bytes).ToLower ().Replace ("-", "");
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2012-07-28 13:58:09 +00:00
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}
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2015-01-02 18:21:40 +00:00
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public static string SHA256 (this string s)
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{
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SHA256 sha256 = new SHA256CryptoServiceProvider ();
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byte [] bytes = ASCIIEncoding.Default.GetBytes (s);
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byte [] sha256_bytes = sha256.ComputeHash (bytes);
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return BitConverter.ToString (sha256_bytes).ToLower ().Replace ("-", "");
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}
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public static string SHA256 (this string s, string salt)
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{
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SHA256 sha256 = new SHA256CryptoServiceProvider ();
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byte [] bytes = ASCIIEncoding.Default.GetBytes (s + salt);
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byte [] sha256_bytes = sha256.ComputeHash (bytes);
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return BitConverter.ToString (sha256_bytes).ToLower ().Replace ("-", "");
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}
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2012-07-28 13:58:09 +00:00
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public static string MD5 (this string s)
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{
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MD5 md5 = new MD5CryptoServiceProvider ();
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byte [] bytes = ASCIIEncoding.Default.GetBytes (s);
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2012-08-04 18:55:29 +00:00
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byte [] md5_bytes = md5.ComputeHash (bytes);
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2012-07-28 13:58:09 +00:00
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2012-08-04 18:55:29 +00:00
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return BitConverter.ToString (md5_bytes).ToLower ().Replace ("-", "");
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2012-07-28 13:58:09 +00:00
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}
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2012-11-17 23:05:29 +00:00
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// Format a file size nicely with small caps.
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// Example: 1048576 becomes "1 ᴍʙ"
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public static string ToSize (this double byte_count)
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{
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if (byte_count >= 1099511627776)
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2013-08-25 16:46:06 +00:00
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return String.Format ("{0:##.##} ᴛʙ", Math.Round (byte_count / 1099511627776, 2));
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2012-11-17 23:05:29 +00:00
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else if (byte_count >= 1073741824)
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return String.Format ("{0:##.##} ɢʙ", Math.Round (byte_count / 1073741824, 1));
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else if (byte_count >= 1048576)
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2013-08-25 16:46:06 +00:00
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return String.Format ("{0:##.##} ᴍʙ", Math.Round (byte_count / 1048576, 1));
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2012-11-17 23:05:29 +00:00
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else if (byte_count >= 1024)
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return String.Format ("{0:##.##} ᴋʙ", Math.Round (byte_count / 1024, 0));
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else
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2012-11-22 12:31:48 +00:00
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return byte_count.ToString () + " ʙ";
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2012-11-17 23:05:29 +00:00
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}
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2013-01-11 18:58:14 +00:00
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public static bool IsSymlink (this FileSystemInfo file)
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{
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return ((file.Attributes & FileAttributes.ReparsePoint) == FileAttributes.ReparsePoint);
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}
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2014-10-30 16:58:28 +00:00
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public static string ToPrettyDate (this DateTime timestamp)
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{
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2014-11-08 17:26:09 +00:00
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TimeSpan time_diff = DateTime.Now.Subtract (timestamp);
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2014-10-30 16:58:28 +00:00
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int day_diff = (int) time_diff.TotalDays;
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2014-11-08 17:26:09 +00:00
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DateTime yesterday = DateTime.Today.AddDays (-1);
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2014-10-30 16:58:28 +00:00
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2014-11-08 17:26:09 +00:00
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if (timestamp >= yesterday && timestamp < DateTime.Today) {
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2014-10-30 16:58:28 +00:00
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return "yesterday at " + timestamp.ToString ("HH:mm");
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2014-11-08 17:26:09 +00:00
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} else if (day_diff == 0) {
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return "today at " + timestamp.ToString ("HH:mm");
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2014-10-30 16:58:28 +00:00
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} else if (day_diff < 7) {
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2014-11-08 17:26:09 +00:00
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return timestamp.ToString ("dddd");
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2014-10-30 16:58:28 +00:00
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} else if (day_diff < 31) {
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if (day_diff < 14)
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return "last week";
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else
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return string.Format ("{0} weeks ago", Math.Ceiling ((double) day_diff / 7));
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} else if (day_diff < 62) {
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return "last month";
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} else {
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return string.Format ("{0} months ago", Math.Ceiling ((double) day_diff / 31));
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}
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}
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2014-11-29 23:52:57 +00:00
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public static string ReplaceUnderscoreWithSpace (this string s)
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{
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int len = s.Length, lead = 0, trail = 0;
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for (int i = 0; i < len && s[i] == '_'; i++, lead++)
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; // nop
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for (int i = len - 1; i >= lead && s[i] == '_'; i--, trail++)
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; // nop
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if (lead == 0 && trail == 0)
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return s.Replace("_", " "); // fast code path
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else
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return s.Substring (0, lead) +
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s.Substring (lead, len - lead - trail).Replace ("_", " ") +
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s.Substring (len - trail, trail);
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}
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2012-01-24 09:33:30 +00:00
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}
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}
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