91 lines
2.8 KiB
C#
91 lines
2.8 KiB
C#
using System;
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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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namespace MediaBrowser.Common.Extensions
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{
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/// <summary>
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/// Class BaseExtensions
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/// </summary>
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public static class BaseExtensions
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{
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/// <summary>
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/// Strips the HTML.
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/// </summary>
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/// <param name="htmlString">The HTML string.</param>
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/// <returns>System.String.</returns>
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public static string StripHtml(this string htmlString)
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{
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// http://stackoverflow.com/questions/1349023/how-can-i-strip-html-from-text-in-net
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const string pattern = @"<(.|\n)*?>";
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return Regex.Replace(htmlString, pattern, string.Empty).Trim();
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}
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/// <summary>
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/// Replaces the specified STR.
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/// </summary>
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/// <param name="str">The STR.</param>
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/// <param name="oldValue">The old value.</param>
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/// <param name="newValue">The new value.</param>
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/// <param name="comparison">The comparison.</param>
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/// <returns>System.String.</returns>
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public static string Replace(this string str, string oldValue, string newValue, StringComparison comparison)
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{
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var sb = new StringBuilder();
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var previousIndex = 0;
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var index = str.IndexOf(oldValue, comparison);
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while (index != -1)
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{
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sb.Append(str.Substring(previousIndex, index - previousIndex));
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sb.Append(newValue);
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index += oldValue.Length;
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previousIndex = index;
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index = str.IndexOf(oldValue, index, comparison);
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}
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sb.Append(str.Substring(previousIndex));
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return sb.ToString();
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}
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/// <summary>
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/// Gets the M d5.
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/// </summary>
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/// <param name="str">The STR.</param>
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/// <returns>Guid.</returns>
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public static Guid GetMD5(this string str)
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{
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using (var provider = MD5.Create())
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{
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return new Guid(provider.ComputeHash(Encoding.Unicode.GetBytes(str)));
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}
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}
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/// <summary>
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/// Gets the MB id.
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/// </summary>
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/// <param name="str">The STR.</param>
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/// <param name="type">The type.</param>
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/// <returns>Guid.</returns>
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/// <exception cref="System.ArgumentNullException">type</exception>
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[Obsolete("Use LibraryManager.GetNewItemId")]
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public static Guid GetMBId(this string str, Type type)
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{
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if (type == null)
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{
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throw new ArgumentNullException("type");
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}
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var key = type.FullName + str.ToLower();
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return key.GetMD5();
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}
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}
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}
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