private void BuildBatchRequestContent(IAsyncResult asyncResult)
{
MixpanelRequestState state = (MixpanelRequestState)asyncResult.AsyncState;
HttpWebRequest request = state.Request;
// No timeout available on HttpWebRequest object, using a signal instead.
state.Completed = new ManualResetEvent(false);
try
{
Stream stream = request.EndGetRequestStream(asyncResult);
byte[] data = Encoding.UTF8.GetBytes(state.RequestData);
// Write to the request stream.
stream.Write(data, 0, data.Length);
stream.Flush();
stream.Close();
}
catch (Exception ex)
{
state.Error = ex;
state.Result = "0";
state.Completed.Set();
return;
}
state.Completed.Reset();
request.BeginGetResponse(new AsyncCallback(RequestCompleted), state);
}
private void RequestCompleted(IAsyncResult asyncResult)
{
MixpanelRequestState state = (MixpanelRequestState)asyncResult.AsyncState;
try
{
HttpWebRequest request = state.Request;
state.Response = (HttpWebResponse)request.EndGetResponse(asyncResult);
if ((int)state.Response.StatusCode >= 400)
{
state.Error = new WebException("HTTP Error");
state.Result = "0";
}
else
{
// API sends 0 or 1 as response, it's safe to read stream in a single shot.
using (Stream stream = state.Response.GetResponseStream())
{
StreamReader reader = new StreamReader(stream, Utilities.DefaultEncoding);
state.Result = reader.ReadToEnd();
}
}
}
catch (Exception ex)
{
state.Error = ex;
state.Result = "0";
}
finally
{
if (state.Completed != null)
{
state.Completed.Set();
}
}
}
private async Task <bool> SendBatch(string endpointName, string data, IDictionary <string, string> uriParameters)
{
if (string.IsNullOrEmpty(endpointName))
{
throw new ArgumentException("String cannot be null or empty.", "endpointName");
}
if (string.IsNullOrEmpty(data))
{
throw new ArgumentException("String cannot be null or empty.", "data");
}
if (uriParameters == null)
{
throw new ArgumentNullException("uriParameters");
}
string requestUri = BaseUrl + endpointName + "/?ip=1";// +"&verbose=1";
foreach (KeyValuePair <string, string> kvp in uriParameters)
{
if (string.IsNullOrEmpty(kvp.Key) || string.IsNullOrEmpty(kvp.Value))
{
continue;
}
requestUri += "&" + Utilities.UrlEncode(kvp.Key) + "=" + Utilities.UrlEncode(kvp.Value);
}
// Ensure built-in cache is bypassed by passing a bogus changing parameter
requestUri += "&ms-ts=" + (DateTime.UtcNow.Ticks / 10000);
string requestData = "data=" + Utilities.ToBase64(data);
#if WINDOWS_PHONE
HttpWebRequest request = HttpWebRequest.CreateHttp(requestUri);
request.UserAgent = UserAgent;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
MixpanelRequestState state = new MixpanelRequestState();
state.Request = request;
state.RequestData = requestData;
IAsyncResult asyncResult = request.BeginGetRequestStream(new AsyncCallback(BuildBatchRequestContent), state);
state = (MixpanelRequestState)asyncResult.AsyncState;
await Task.Run(() =>
{
bool completed = false;
if (state.Completed != null)
{
completed = state.Completed.WaitOne(MaxTimeout * 1000);
}
if (!completed || !asyncResult.IsCompleted)
{
// Timeout
request.Abort();
throw new WebException("Timeout");
}
if (state.Error != null)
{
throw state.Error;
}
});
string result = null;
if (state.Result != null)
{
result = state.Result.ToString();
}
#else
TimeSpan timeout = TimeSpan.FromSeconds(MaxTimeout);
if (_httpClient.Timeout != timeout)
{
_httpClient.Timeout = timeout;
}
string result;
using (HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, requestUri))
{
request.Headers.Add("User-Agent", UserAgent);
request.Content = new StringContent(requestData);
request.Content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/x-www-form-urlencoded");
using (HttpResponseMessage response = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseContentRead))
{
response.EnsureSuccessStatusCode();
if (response.Content == null)
{
return(false);
}
result = await response.Content.ReadAsStringAsync();
}
}
#endif
return(Utilities.ToBoolean(result, false));
}
private async Task <bool> Send(string endpointName, string data, IDictionary <string, string> uriParameters)
{
if (string.IsNullOrEmpty(endpointName))
{
throw new ArgumentException("String cannot be null or empty.", "endpointName");
}
if (string.IsNullOrEmpty(data))
{
throw new ArgumentException("String cannot be null or empty.", "data");
}
if (uriParameters == null)
{
throw new ArgumentNullException("uriParameters");
}
string encodedData = Utilities.ToBase64(data);
string requestUri = BaseUrl + endpointName + "/?";
requestUri += (IsGeolocationEnabled) ? "ip=1" : "ip=0";
if (IsVerboseEnabled)
{
requestUri += "&verbose=1";
}
requestUri += "&data=" + encodedData;
foreach (KeyValuePair <string, string> kvp in uriParameters)
{
if (string.IsNullOrEmpty(kvp.Key) || string.IsNullOrEmpty(kvp.Value))
{
continue;
}
requestUri += "&" + Utilities.UrlEncode(kvp.Key) + "=" + Utilities.UrlEncode(kvp.Value);
}
#if WINDOWS_PHONE
// Ensure built-in cache is bypassed by passing a bogus changing parameter
requestUri += "&ms-ts=" + (DateTime.UtcNow.Ticks / 10000);
HttpWebRequest request = HttpWebRequest.CreateHttp(requestUri);
request.UserAgent = UserAgent;
MixpanelRequestState state = new MixpanelRequestState();
state.Request = request;
// No timeout available on HttpWebRequest object, using a signal instead.
state.Completed = new ManualResetEvent(false);
state.Completed.Reset();
IAsyncResult asyncResult = (IAsyncResult)request.BeginGetResponse(new AsyncCallback(RequestCompleted), state);
state = (MixpanelRequestState)asyncResult.AsyncState;
await Task.Run(() =>
{
bool completed = false;
if (state.Completed != null)
{
completed = state.Completed.WaitOne(MaxTimeout * 1000);
}
if (!completed || !asyncResult.IsCompleted)
{
// Timeout
request.Abort();
throw new WebException("Timeout");
}
if (state.Error != null)
{
throw state.Error;
}
});
string result = state.Result.ToString();
#else
TimeSpan timeout = TimeSpan.FromSeconds(MaxTimeout);
if (_httpClient.Timeout != timeout)
{
_httpClient.Timeout = timeout;
}
string result;
using (HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, requestUri))
{
request.Headers.Add("User-Agent", UserAgent);
using (HttpResponseMessage response = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseContentRead))
{
response.EnsureSuccessStatusCode();
if (response.Content == null)
{
return(false);
}
result = await response.Content.ReadAsStringAsync();
}
}
#endif
return(Utilities.ToBoolean(result, false));
}
