/// <summary>
/// Compress an ErrorReport as JSON string
/// </summary>
/// <param name="errorReport">ErrorReport</param>
/// <returns>Compressed JSON representation of the ErrorReport.</returns>
internal byte[] CompressErrorReport(UploadToScreenshotsDTO errorReport)
{
var reportJson = JsonConvert.SerializeObject(errorReport, Formatting.None,
new JsonSerializerSettings
{
TypeNameHandling = TypeNameHandling.None,
//ContractResolver =
// new IncludeNonPublicMembersContractResolver()
});
var buffer = Encoding.UTF8.GetBytes(reportJson);
//collected by GZipStream
var outMs = new MemoryStream();
using (var zipStream = new GZipStream(outMs, CompressionMode.Compress))
{
zipStream.Write(buffer, 0, buffer.Length);
//MUST close the stream, flush doesn't help and without close
// the memory stream won't get its bytes
zipStream.Close();
var result = outMs.ToArray();
return(result);
}
}
/// <summary>
/// Upload the report to the web service.
/// </summary>
/// <param name="report">CreateReport to submit</param>
public void UploadReport(UploadToScreenshotsDTO report)
{
if (report == null)
{
throw new ArgumentNullException("report");
}
if (!NetworkInterface.GetIsNetworkAvailable() || _queueReportsAccessor())
{
_reportQueue.Add(report);
}
else
{
TryUploadReportNow(report);
}
}
/// <summary>
/// Try to upload a report directly
/// </summary>
/// <param name="report">Report to upload</param>
/// <exception cref="WebException">No internet connection is available; Destination server did not accept the report.</exception>
public void TryUploadReportNow(UploadToScreenshotsDTO report)
{
if (!NetworkInterface.GetIsNetworkAvailable())
{
throw new WebException("Not connected, try again later.", WebExceptionStatus.ConnectFailure);
}
var buffer = CompressErrorReport(report);
var version = Assembly.GetExecutingAssembly().GetName().Version.ToString(2);
var hashAlgo = new HMACSHA256(Encoding.UTF8.GetBytes(_sharedSecret));
var hash = hashAlgo.ComputeHash(buffer);
var signature = Convert.ToBase64String(hash);
try
{
ExecuteRetryer retryer = new ExecuteRetryer(20, 300);
retryer.Execute(() =>
{
var uri = _reportUri + "?sig=" + signature + "&v=" + version;
var request = (HttpWebRequest)WebRequest.Create(uri);
AddProxyIfRequired(request, uri);
request.Method = "POST";
request.ContentType = "application/octet-stream";
var evt = request.BeginGetRequestStream(null, null);
var stream = request.EndGetRequestStream(evt);
stream.Write(buffer, 0, buffer.Length);
var responseRes = request.BeginGetResponse(null, null);
var response = (HttpWebResponse)request.EndGetResponse(responseRes);
using (response)
{
//Console.WriteLine(response);
}
});
}
catch (Exception err)
{
AnalyzeException(err);
throw new WebException(
"The actual upload failed (probably network error). We'll try again later..", err);
}
}
