public async Task ComputeMD5Hash_SimpleText_ComputesHash()
{
var input = "test";
var expected = "CY9rzUYh03PK3k6DJie09g==";
var hash = await ContentHashHelper.ComputeMD5Hash(new MemoryStream(Encoding.UTF8.GetBytes(input)));
Assert.AreEqual(expected, hash);
}
public void RemoveHash(string url, string expected)
{
var configuration = Substitute.For <IUniqueUrlFolderPresetsConfiguration>();
configuration.BaseSegment.Returns("optimized");
var sut = new ContentHashHelper(configuration);
var actual = sut.RemoveHash(url);
actual.ShouldBe(expected);
}
async Task AppendBody(HttpRequestMessage requestMessage, Stream body, CancellationToken cancellationToken)
{
if (!body.CanSeek)
{
// we need to compute the ContentHash for this body meaning that we need to have seekable version, hence copy to a memory stream first
var memoryStream = new MemoryStream();
await body.CopyToAsync(memoryStream, 81920, cancellationToken);
memoryStream.Position = 0;
body = memoryStream;
}
var bodyStartPosition = body.Position;
var contentHashBytes = await ContentHashHelper.ComputeMD5HashBytes(body, cancellationToken);
body.Position = bodyStartPosition;
requestMessage.Content = new StreamContent(body);
requestMessage.Content.Headers.ContentMD5 = contentHashBytes;
}