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Using MD5 hashes for profile filenames

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Prevent the long urls which can get generated
when deep hierarchies are used.
This commit is contained in:
Sebastien Ros
2014-02-26 18:28:53 -08:00
parent ee06fa272f
commit 4546c0627c
1 changed files with 6 additions and 11 deletions
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17
src/Orchard.Web/Modules/Orchard.MediaProcessing/Services/ImageProfileManager.cs
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@@ -4,6 +4,7 @@ using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Security.Cryptography;
using System.Web;
using Orchard.ContentManagement;
using Orchard.FileSystems.Media;
@@ -205,20 +206,14 @@ namespace Orchard.MediaProcessing.Services {
return false;
}
private static readonly char[] _disallowed = @"/:?#[]@!$&'()*+,.;=s""<>\|%".ToCharArray();
private static string CreateDefaultFileName(string path) {
var extention = Path.GetExtension(path);
var newPath = Path.ChangeExtension(path, "");
newPath = newPath.TrimEnd('.').RemoveDiacritics();
var normalized = newPath.ToCharArray();
for (var i = 0; i < normalized.Length; i++) {
if (Array.IndexOf(_disallowed, normalized[i]) >= 0) {
normalized[i] = '_';
}
var utf8Bytes = System.Text.Encoding.UTF8.GetBytes(path);
using (var provider = new MD5CryptoServiceProvider()) {
var hash = provider.ComputeHash(utf8Bytes);
var encodedHash = Convert.ToBase64String(hash);
return encodedHash + extention;
}
return new string(normalized) + extention;
}
}
}