public static ILogResponseBodyStrategy Create(Stream stream, Encoding encoding, Logger logger)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (encoding == null)
{
throw new ArgumentNullException(nameof(encoding));
}
if (logger == null)
{
throw new ArgumentNullException(nameof(logger));
}
if (!stream.CanRead)
{
return(new NullLogResponseBody());
}
if (stream.Length > Constants.MaximumAllowedFileSizeInBytes)
{
return(new LogResponseBodySizeTooLargeException(logger, stream.Length, Constants.MaximumAllowedFileSizeInBytes));
}
var headers = logger.DataContainer.HttpProperties.Response?.Properties?.Headers;
string contentType = headers?.FirstOrDefault(p => string.Compare(p.Key, "Content-Type", StringComparison.OrdinalIgnoreCase) == 0).Value;
string responseFileName = InternalHelpers.GenerateResponseFileName(headers);
IReadStreamStrategy strategy = ReadStreamStrategyFactory.Create(stream, encoding, contentType);
return(new LogResponseBody(logger, responseFileName, strategy));
}
public void ReturnsNullReadStreamWhenStreamIsDisposed()
{
var stream = new Mock <Stream>();
stream.Setup(p => p.CanRead).Returns(false);
IReadStreamStrategy strategy = ReadStreamStrategyFactory.Create(stream.Object, Encoding.UTF8, "text/plain");
Assert.IsInstanceOfType(strategy, typeof(NullReadStream));
}
public void ReturnsReadStreamAsStringForValidContentTypes(string contentType)
{
var stream = new Mock <Stream>();
stream.Setup(p => p.CanRead).Returns(true);
stream.Setup(p => p.Length).Returns(Constants.ReadStreamAsStringMaxContentLengthInBytes);
IReadStreamStrategy strategy = ReadStreamStrategyFactory.Create(stream.Object, Encoding.UTF8, contentType);
Assert.IsInstanceOfType(strategy, typeof(ReadStreamAsString));
}
public void ReturnsReadStreamToTemporaryFileWhenContentSizeIsGtThanMaximumContentLength()
{
var stream = new Mock <Stream>();
stream.Setup(p => p.CanRead).Returns(true);
stream.Setup(p => p.Length).Returns(Constants.ReadStreamAsStringMaxContentLengthInBytes + 1);
IReadStreamStrategy strategy = ReadStreamStrategyFactory.Create(stream.Object, Encoding.UTF8, "text/plain");
Assert.IsInstanceOfType(strategy, typeof(ReadStreamToTemporaryFile));
}
public LogResponseBody(
Logger logger,
string responseFileName,
IReadStreamStrategy readStreamStrategy)
{
if (string.IsNullOrWhiteSpace(responseFileName))
{
throw new ArgumentNullException(nameof(responseFileName));
}
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
_readStreamStrategy = readStreamStrategy ?? throw new ArgumentNullException(nameof(readStreamStrategy));
_responseFileName = responseFileName;
}
