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Added cache breaking based on hash rather than version

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kayone 2014-08-31 00:40:23 -07:00
parent dbcabd6df6
commit c4e8e3ebc7
15 changed files with 90 additions and 31 deletions
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43
src/NzbDrone.Api/Frontend/Mappers/CacheBreakerProvider.cs Normal file
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using System.Collections.Generic;
using System.Linq;
using NzbDrone.Common.Crypto;
using NzbDrone.Common.Extensions;
namespace NzbDrone.Api.Frontend.Mappers
{
public interface ICacheBreakerProvider
{
string AddCacheBreakerToPath(string resourceUrl);
}
public class CacheBreakerProvider : ICacheBreakerProvider
{
private readonly IEnumerable<IMapHttpRequestsToDisk> _diskMappers;
private readonly IHashProvider _hashProvider;
public CacheBreakerProvider(IEnumerable<IMapHttpRequestsToDisk> diskMappers, IHashProvider hashProvider)
{
_diskMappers = diskMappers;
_hashProvider = hashProvider;
}
public string AddCacheBreakerToPath(string resourceUrl)
{
if (!ShouldBreakCache(resourceUrl))
{
return resourceUrl;
}
var mapper = _diskMappers.Single(m => m.CanHandle(resourceUrl));
var pathToFile = mapper.Map(resourceUrl);
var hash = _hashProvider.ComputeMd5(pathToFile).ToBase64();
return resourceUrl + "?h=" + hash;
}
private static bool ShouldBreakCache(string path)
{
return !path.EndsWith(".ics") && !path.EndsWith("main");
}
}
}