/// <summary>
/// Sends an HTTP request to the inner handler to send to the server as an asynchronous operation.
/// </summary>
/// <param name="request">The HTTP request message to send to the server.</param>
/// <param name="cancellationToken">A cancellation token to cancel operation.</param>
/// <returns>
/// Returns <see cref="T:System.Threading.Tasks.Task`1" />. The task object representing the asynchronous operation.
/// </returns>
protected async override Task <HttpResponseMessage> SendAsync(
HttpRequestMessage request,
CancellationToken cancellationToken)
{
try
{
// check if request is encrypted or non encrypted
var isNonEncRequest = request.Headers.FirstOrDefault(r => r.Key == "Non-Encrypt-Request");
bool?isNonEncrypted = null;
if (!string.IsNullOrWhiteSpace(isNonEncRequest.Key))
{
isNonEncrypted = true;
}
var contentType = request.Content.Headers.ContentType;
var oldHeaders = request.Content.Headers;
if (contentType != null)
{
if (contentType.MediaType.StartsWith("application/x-www-form-urlencoded", StringComparison.OrdinalIgnoreCase))
{
return(request.CreateResponse(WebMethods.CreateServiceResponseWithErrors("Error")));
}
if (contentType.MediaType.StartsWith("multipart/form-data", StringComparison.OrdinalIgnoreCase))
{
if (!request.Content.IsMimeMultipartContent())
{
return(request.CreateResponse(WebMethods.CreateServiceResponseWithErrors("Error")));
}
var requestJson = HttpContext.Current.Request.Params["RequestJSON"];
if (requestJson != null)
{
var requestObj = JsonMethods.JObjectParse(requestJson);
var requestContent = requestObj["RequestJSON"];
if (requestContent != null)
{
var jsonData = JsonMethods.CreateJsonRequest(requestContent.ToString(), !isNonEncrypted);
request.Content = new StringContent(jsonData);
// webapi is not supporting multipart/form-data so request can not redirect to particular action
// multipart is possible if action don't have any parameters
oldHeaders.Remove("Content-type");
oldHeaders.Add("Content-type", "application/json");
}
else
{
return(request.CreateResponse(WebMethods.CreateServiceResponseWithErrors("Error")));
}
}
else
{
}
}
else if (contentType.MediaType.StartsWith("application/json", StringComparison.OrdinalIgnoreCase) || contentType.MediaType.StartsWith("text/json", StringComparison.OrdinalIgnoreCase))
{
var formData = request.Content.ReadAsStringAsync().Result;
var requestObj = JsonMethods.JObjectParse(formData);
var requestContent = requestObj["RequestJSON"];
if (requestContent != null)
{
if (requestContent.ToString() != "{}")
{
var jsonData = JsonMethods.CreateJsonRequest(requestContent.ToString(), !isNonEncrypted);
request.Content = new StringContent(jsonData);
}
}
else
{
}
}
else
{
//new Exception(CommonResources.GetError("UnsupportedContentType")).LogToElmah();
}
}
this.ReplaceHeaders(request.Content.Headers, oldHeaders);
var response = await base.SendAsync(request, cancellationToken);
return(response);
}
catch (Exception exception)
{
var responseMessage = request.CreateResponse(WebMethods.CreateServiceResponseWithErrors("Error"));
return(responseMessage);
}
}