/// <summary>
/// Writes the response's information to the given log
/// </summary>
/// <param name="response">The response to write</param>
/// <param name="logger">The log to write to</param>
/// <param name="level">The log-level to write at</param>
public static void WriteToLog(this HttpResponseData response, Logger logger, LogLevel level)
{
ExceptionUtilities.CheckArgumentNotNull(response, "response");
ExceptionUtilities.CheckArgumentNotNull(logger, "logger");
logger.WriteLine(level, ((int)response.StatusCode) + " " + response.StatusCode);
logger.WriteLine(level, string.Join(Environment.NewLine, response.Headers.Select(h => h.Key + ": " + h.Value).ToArray()));
logger.WriteLine(level, string.Empty);
if (response.Body != null)
{
var encoding = response.GetEncodingFromHeadersOrDefault();
logger.WriteLine(level, encoding.GetString(response.Body, 0, response.Body.Length));
logger.WriteLine(level, string.Empty);
}
}
/// <summary>
/// Initializes a new instance of the HttpResponse class using the status code and headers given, and by reading from the given stream
/// </summary>
/// <param name="statusCode">The status code for the response</param>
/// <param name="headers">The headers for the response</param>
/// <param name="bodyStream">The underlying response body stream</param>
/// <returns>The http response</returns>
public static HttpResponseData BuildResponse(HttpStatusCode statusCode, IDictionary <string, string> headers, Stream bodyStream)
{
ExceptionUtilities.CheckArgumentNotNull(headers, "headers");
ExceptionUtilities.CheckArgumentNotNull(bodyStream, "bodyStream");
var response = new HttpResponseData();
response.StatusCode = statusCode;
foreach (var header in headers)
{
response.Headers.Add(header.Key, header.Value);
}
// get the content length from the headers, using -1 to indicate that it is not known
int contentLength = -1;
if (headers.ContainsKey(HttpHeaders.ContentLength))
{
// note that numbers greater than int.MaxValue will not be parsed,
// and so we will read as if we did not know the length
if (!int.TryParse(headers[HttpHeaders.ContentLength], out contentLength))
{
contentLength = -1;
}
}
// Empty could also be null, but this is nicer to work with
if (contentLength == 0)
{
response.Body = new byte[0];
}
else
{
// create an in-memory stream to store the body. if the length is known, pre-allocate the space
MemoryStream tempStream;
if (contentLength > 0)
{
tempStream = new MemoryStream(contentLength);
}
else
{
tempStream = new MemoryStream();
}
using (tempStream)
{
// copy blocks into the in-memory stream until read() returns -1
int read;
byte[] buffer = new byte[BufferSize];
while ((read = bodyStream.Read(buffer, 0, buffer.Length)) > 0)
{
tempStream.Write(buffer, 0, read);
}
// save the bytes in the in-memory stream
response.Body = tempStream.ToArray();
}
}
return(response);
}
