/// <summary>
/// Request a generic resource from the service server(s).
/// </summary>
/// <param name="route">
/// The API route to make the request to.
/// </param>
/// <param name="responseReceived">
/// Gets set to false if no response was received, otherwise false.
/// </param>
/// <param name="noLogging">
/// Whether or not to log errors. Since HttpWebRequest brilliant throws exceptions for
/// non-success HTTP status codes, it's nice to be able to control whether or not your
/// request should have errors logged.
/// </param>
/// <returns>
/// A non-null byte array on success. Null byte array on failure.
/// </returns>
public byte[] RequestResource(string resourceUri, out HttpStatusCode code, out bool responseReceived, ResourceOptions options = null, ServiceResource resource = ServiceResource.Custom)
{
if (options == null)
{
options = new ResourceOptions(); // Instantiate a resource options object with default options.
}
responseReceived = true;
Dictionary <string, object> parameters = new Dictionary <string, object>();
try
{
// Try to send the device name as well. Helps distinguish between clients under the
// same account.
string deviceName = string.Empty;
try
{
deviceName = Environment.MachineName;
}
catch
{
deviceName = "Unknown";
}
var accessToken = WebServiceUtil.Default.AuthToken;
//m_logger.Info("RequestResource1: accessToken=" + accessToken);
IVersionProvider versionProvider = PlatformTypes.New <IVersionProvider>();
string version = versionProvider.GetApplicationVersion().ToString(3);
// Build out post data with username and identifier.
parameters.Add("identifier", FingerprintService.Default.Value);
parameters.Add("device_id", deviceName);
string postString = null;
//string postString = string.Format("&identifier={0}&device_id={1}", FingerprintService.Default.Value, Uri.EscapeDataString(deviceName));
if (options.Parameters != null)
{
foreach (var parameter in options.Parameters)
{
parameters.Add(parameter.Key, parameter.Value);
}
}
if (resource == ServiceResource.UserDataSumCheck || resource == ServiceResource.UserConfigSumCheck)
{
m_logger.Info("Sending version {0} to server", version);
parameters.Add("app_version", version);
}
switch (options.ContentType)
{
case "application/x-www-form-urlencoded":
postString = string.Join("&", parameters.Select(kv => $"{kv.Key}={kv.Value}"));
break;
case "application/json":
postString = Newtonsoft.Json.JsonConvert.SerializeObject(parameters);
break;
}
if (options.Method == "GET" || options.Method == "DELETE")
{
resourceUri += "?" + postString;
if (postString.Contains("app_version"))
{
m_logger.Info("Sending postString as {0}", resourceUri);
}
}
var request = GetApiBaseRequest(resourceUri, options);
m_logger.Debug("WebServiceUtil.Request {0}", request.RequestUri);
if (StringExtensions.Valid(accessToken))
{
request.Headers.Add("Authorization", string.Format("Bearer {0}", accessToken));
}
else if (resource != ServiceResource.RetrieveToken)
{
m_logger.Info("RequestResource1: Authorization failed.");
AuthTokenRejected?.Invoke();
code = HttpStatusCode.Unauthorized;
return(null);
}
if (options.Method != "GET" && options.Method != "DELETE")
{
if (postString.Contains("app_version"))
{
m_logger.Info("Sending {0} to server as {1}", postString, options.Method);
}
var formData = System.Text.Encoding.UTF8.GetBytes(postString);
request.ContentLength = formData.Length;
using (var requestStream = request.GetRequestStream())
{
requestStream.Write(formData, 0, formData.Length);
requestStream.Close();
}
}
m_logger.Info("RequestResource: uri={0}", request.RequestUri);
// Now that our login form data has been POST'ed, get a response.
using (var response = (HttpWebResponse)request.GetResponse())
{
// Get the response code as an int so we can range check it.
var intCode = (int)response.StatusCode;
code = (HttpStatusCode)intCode;
try
{
// Check if response code is considered a success code.
if (intCode >= 200 && intCode <= 299)
{
using (var memoryStream = new MemoryStream())
{
response.GetResponseStream().CopyTo(memoryStream);
// We do this just in case we get something like a 204. The idea here
// is that if we return a non-null, the call was a success.
var responseBody = memoryStream.ToArray();
if (responseBody == null || intCode == 204)
{
return(null);
}
return(responseBody);
}
}
else
{
m_logger.Info("When requesting resource, got unexpected response code of {0}.", code);
}
}
finally
{
response.Close();
request.Abort();
}
}
}
catch (WebException e)
{
// KF - Set this to 0 for default. 0's a pretty good indicator of no internet.
code = 0;
try
{
using (WebResponse response = e.Response)
{
if (response == null)
{
responseReceived = false;
}
HttpWebResponse httpResponse = (HttpWebResponse)response;
m_logger.Error("Error code: {0}", httpResponse.StatusCode);
int intCode = (int)httpResponse.StatusCode;
code = (HttpStatusCode)intCode;
// Auth failure means re-log EXCEPT when requesting deactivation.
if ((intCode == 401 || intCode == 403) && resource != ServiceResource.DeactivationRequest)
{
WebServiceUtil.Default.AuthToken = string.Empty;
m_logger.Info("RequestResource2: Authorization failed.");
AuthTokenRejected?.Invoke();
}
else if (intCode > 399 && intCode <= 499 && resource != ServiceResource.DeactivationRequest)
{
m_logger.Info("Error occurred in RequestResource: {0}", intCode);
}
using (Stream data = response.GetResponseStream())
using (var reader = new StreamReader(data))
{
string text = reader.ReadToEnd();
m_logger.Error(text);
}
}
}
catch { }
if (!options.NoLogging)
{
m_logger.Error(e.Message);
m_logger.Error(e.StackTrace);
}
}
catch (Exception e)
{
// XXX TODO - Good default?
code = HttpStatusCode.InternalServerError;
if (!options.NoLogging)
{
while (e != null)
{
m_logger.Error(e.Message);
m_logger.Error(e.StackTrace);
e = e.InnerException;
}
}
}
return(null);
}