private async Task <string> ExecuteRequestAsync(PrtgUrl url, Func <HttpResponseMessage, Task <string> > responseParser = null)
{
int retriesRemaining = prtgClient.RetryCount;
do
{
try
{
var response = await webClient.GetAsync(url.Url).ConfigureAwait(false);
var responseText = responseParser == null ? await response.Content.ReadAsStringAsync().ConfigureAwait(false) : await responseParser(response);
ValidateHttpResponse(response, responseText);
return(responseText);
}
catch (HttpRequestException ex) //todo: test making invalid requests
{
var inner = ex.InnerException as WebException;
var result = HandleRequestException(inner, ex, url, ref retriesRemaining, null);
if (!result)
{
throw;
}
}
} while (true);
}
private string ExecuteRequest(PrtgUrl url, Func <HttpResponseMessage, string> responseParser = null)
{
int retriesRemaining = prtgClient.RetryCount;
do
{
try
{
var response = webClient.GetSync(url.Url).Result;
var responseText = responseParser == null?response.Content.ReadAsStringAsync().Result : responseParser(response);
ValidateHttpResponse(response, responseText);
return(responseText);
}
catch (Exception ex) when(ex is AggregateException || ex is TaskCanceledException || ex is HttpRequestException)
{
var result = HandleRequestException(ex.InnerException?.InnerException, ex.InnerException, url, ref retriesRemaining, () =>
{
if (ex.InnerException != null)
{
throw ex.InnerException;
}
});
if (!result)
{
throw;
}
}
} while (true);
}
private async Task <string> ExecuteRequestAsync(PrtgUrl url, CancellationToken token, Func <HttpResponseMessage, Task <string> > responseParser = null)
{
prtgClient.Log($"Asynchronously executing request {url.Url}", LogLevel.Request);
int retriesRemaining = prtgClient.RetryCount;
do
{
try
{
if (token == CancellationToken.None && DefaultCancellationToken != CancellationToken.None)
{
token = DefaultCancellationToken;
}
var response = await webClient.GetAsync(url.Url, token).ConfigureAwait(false);
string responseText = null;
if (responseParser != null)
{
responseText = await responseParser(response).ConfigureAwait(false);
}
if (responseText == null)
{
responseText = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
}
prtgClient.Log(responseText, LogLevel.Response);
ValidateHttpResponse(response, responseText);
return(responseText);
}
catch (HttpRequestException ex)
{
var inner = ex.InnerException as WebException;
var result = HandleRequestException(inner, ex, url, ref retriesRemaining, null);
if (!result)
{
throw;
}
}
catch (TaskCanceledException ex)
{
//If the token we specified was cancelled, throw the TaskCanceledException
if (token.IsCancellationRequested)
{
throw;
}
//Otherwise, a token that was created internally for use with timing out was cancelled, so throw a timeout exception
throw new TimeoutException($"The server timed out while executing request.", ex);
}
} while (true);
}
internal async Task <string> ExecuteRequestAsync(HtmlFunction function, Parameters.Parameters parameters)
{
var url = new PrtgUrl(prtgClient.Server, prtgClient.UserName, prtgClient.PassHash, function, parameters);
var response = await ExecuteRequestAsync(url);
return(response);
}
internal string ExecuteRequest(HtmlFunction function, Parameters.Parameters parameters)
{
var url = new PrtgUrl(prtgClient.Server, prtgClient.UserName, prtgClient.PassHash, function, parameters);
var response = ExecuteRequest(url);
return(response);
}
internal string ExecuteRequest(CommandFunction function, Parameters.Parameters parameters, Func <HttpResponseMessage, string> responseParser = null)
{
var url = new PrtgUrl(prtgClient.Server, prtgClient.UserName, prtgClient.PassHash, function, parameters);
var response = ExecuteRequest(url, responseParser);
return(response);
}
internal async Task <XDocument> ExecuteRequestAsync(XmlFunction function, Parameters.Parameters parameters)
{
var url = new PrtgUrl(prtgClient.Server, prtgClient.UserName, prtgClient.PassHash, function, parameters);
var response = await ExecuteRequestAsync(url).ConfigureAwait(false);
return(XDocument.Parse(XDocumentHelpers.SanitizeXml(response)));
}
internal XDocument ExecuteRequest(XmlFunction function, Parameters.Parameters parameters)
{
var url = new PrtgUrl(prtgClient.Server, prtgClient.UserName, prtgClient.PassHash, function, parameters);
var response = ExecuteRequest(url);
return(XDocument.Parse(XDocumentHelpers.SanitizeXml(response)));
}
private string ExecuteRequest(PrtgUrl url, Func <HttpResponseMessage, string> responseParser = null)
{
prtgClient.Log($"Synchronously executing request {url.Url}", LogLevel.Request);
int retriesRemaining = prtgClient.RetryCount;
do
{
try
{
var response = webClient.GetSync(url.Url).Result;
string responseText = null;
if (responseParser != null)
{
responseText = responseParser(response);
}
if (responseText == null)
{
responseText = response.Content.ReadAsStringAsync().Result;
}
prtgClient.Log(responseText, LogLevel.Response);
ValidateHttpResponse(response, responseText);
return(responseText);
}
catch (Exception ex) when(ex is AggregateException || ex is TaskCanceledException || ex is HttpRequestException)
{
var innerException = ex.InnerException;
if (ex.InnerException is TaskCanceledException)
{
innerException = new TimeoutException($"The server timed out while executing request.", ex.InnerException);
}
var result = HandleRequestException(ex.InnerException?.InnerException, innerException, url, ref retriesRemaining, () =>
{
if (innerException != null)
{
throw innerException;
}
});
if (!result)
{
throw;
}
}
} while (true);
}
private async Task <string> ExecuteRequestAsync(PrtgUrl url, Func <HttpResponseMessage, Task <string> > responseParser = null)
{
prtgClient.Log($"Asynchronously executing request {url.Url}", LogLevel.Request);
int retriesRemaining = prtgClient.RetryCount;
do
{
try
{
var response = await webClient.GetAsync(url.Url).ConfigureAwait(false);
string responseText = null;
if (responseParser != null)
{
responseText = await responseParser(response).ConfigureAwait(false);
}
if (responseText == null)
{
responseText = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
}
prtgClient.Log(responseText, LogLevel.Response);
ValidateHttpResponse(response, responseText);
return(responseText);
}
catch (HttpRequestException ex)
{
var inner = ex.InnerException as WebException;
var result = HandleRequestException(inner, ex, url, ref retriesRemaining, null);
if (!result)
{
throw;
}
}
catch (TaskCanceledException ex)
{
throw new TimeoutException($"The server timed out while executing request.", ex);
}
} while (true);
}
internal async Task ExecuteRequestAsync(CommandFunction function, Parameters.Parameters parameters)
{
var url = new PrtgUrl(prtgClient.Server, prtgClient.UserName, prtgClient.PassHash, function, parameters);
var response = await ExecuteRequestAsync(url).ConfigureAwait(false);
}
private bool HandleRequestException(Exception innerMostEx, Exception fallbackHandlerEx, PrtgUrl url, ref int retriesRemaining, Action thrower)
{
if (innerMostEx != null)
{
if (retriesRemaining > 0)
{
prtgClient.HandleEvent(prtgClient.retryRequest, new RetryRequestEventArgs(innerMostEx, url.Url, retriesRemaining));
}
else
{
throw innerMostEx;
}
}
else
{
if (fallbackHandlerEx != null && retriesRemaining > 0)
{
prtgClient.HandleEvent(prtgClient.retryRequest, new RetryRequestEventArgs(fallbackHandlerEx, url.Url, retriesRemaining));
}
else
{
thrower();
return(false);
}
}
if (retriesRemaining > 0)
{
var attemptsMade = prtgClient.RetryCount - retriesRemaining + 1;
var delay = prtgClient.RetryDelay * attemptsMade;
Thread.Sleep(delay * 1000);
}
retriesRemaining--;
return(true);
}
private string ExecuteRequest(PrtgUrl url, CancellationToken token, Func <HttpResponseMessage, string> responseParser = null)
{
prtgClient.Log($"Synchronously executing request {url.Url}", LogLevel.Request);
int retriesRemaining = prtgClient.RetryCount;
do
{
try
{
if (token == CancellationToken.None && DefaultCancellationToken != CancellationToken.None)
{
token = DefaultCancellationToken;
}
var response = webClient.GetSync(url.Url, token).Result;
string responseText = null;
if (responseParser != null)
{
responseText = responseParser(response);
}
if (responseText == null)
{
responseText = response.Content.ReadAsStringAsync().Result;
}
prtgClient.Log(responseText, LogLevel.Response);
ValidateHttpResponse(response, responseText);
return(responseText);
}
catch (Exception ex) when(ex is AggregateException || ex is TaskCanceledException || ex is HttpRequestException)
{
var innerException = ex.InnerException;
if (innerException is TaskCanceledException)
{
//If the token we specified was cancelled, throw the TaskCanceledException
if (token.IsCancellationRequested)
{
throw innerException;
}
//Otherwise, a token that was created internally for use with timing out was cancelled, so throw a timeout exception
innerException = new TimeoutException($"The server timed out while executing request.", ex.InnerException);
}
var result = HandleRequestException(ex.InnerException?.InnerException, innerException, url, ref retriesRemaining, () =>
{
if (innerException != null)
{
throw innerException;
}
});
if (!result)
{
throw;
}
}
} while (true);
}
private async Task <PrtgResponse> ExecuteRequestAsync(PrtgUrl url, CancellationToken token, Func <HttpResponseMessage, Task <PrtgResponse> > responseParser = null)
{
prtgClient.Log($"Asynchronously executing request {url.Url}", LogLevel.Request);
int retriesRemaining = prtgClient.RetryCount;
do
{
try
{
if (token == CancellationToken.None && DefaultCancellationToken != CancellationToken.None)
{
token = DefaultCancellationToken;
}
var responseMessage = await webClient.GetAsync(url.Url, token).ConfigureAwait(false);
PrtgResponse responseContent = null;
if (responseParser != null)
{
responseContent = await responseParser(responseMessage).ConfigureAwait(false);
}
if (responseContent == null)
{
responseContent = await GetAppropriateResponseAsync(responseMessage, prtgClient.LogLevel).ConfigureAwait(false);
}
//If we needed to log response, GetAppropriateResponseAsync will have handled this
if (responseContent.Type == PrtgResponseType.String)
{
prtgClient.Log(responseContent.StringValue, LogLevel.Response);
}
ValidateHttpResponse(responseMessage, responseContent);
return(responseContent);
}
catch (HttpRequestException ex)
{
var inner = ex.InnerException as WebException;
var result = HandleRequestException(inner, ex, url, ref retriesRemaining, null);
if (!result)
{
throw;
}
}
catch (TaskCanceledException ex)
{
//If the token we specified was cancelled, throw the TaskCanceledException
if (token.IsCancellationRequested)
{
throw;
}
//Otherwise, a token that was created internally for use with timing out was cancelled, so throw a timeout exception
throw new TimeoutException($"The server timed out while executing request.", ex);
}
} while (true); //Keep retrying as long as we have retries remaining
}
private PrtgResponse ExecuteRequest(PrtgUrl url, CancellationToken token, Func <HttpResponseMessage, PrtgResponse> responseParser = null)
{
prtgClient.Log($"Synchronously executing request {url.Url}", LogLevel.Request);
int retriesRemaining = prtgClient.RetryCount;
do
{
try
{
if (token == CancellationToken.None && DefaultCancellationToken != CancellationToken.None)
{
token = DefaultCancellationToken;
}
var responseMessage = webClient.GetSync(url.Url, token).Result;
PrtgResponse responseContent = null;
if (responseParser != null)
{
responseContent = responseParser(responseMessage);
}
if (responseContent == null)
{
responseContent = GetAppropriateResponse(responseMessage, prtgClient.LogLevel);
}
//If we needed to log response, GetAppropriateResponse will have handled this
if (responseContent.Type == PrtgResponseType.String)
{
prtgClient.Log(responseContent.StringValue, LogLevel.Response);
}
ValidateHttpResponse(responseMessage, responseContent);
return(responseContent);
}
catch (Exception ex) when(ex is AggregateException || ex is TaskCanceledException || ex is HttpRequestException)
{
var innerException = ex.InnerException;
if (innerException is TaskCanceledException)
{
//If the token we specified was cancelled, throw the TaskCanceledException
if (token.IsCancellationRequested)
{
throw innerException;
}
//Otherwise, a token that was created internally for use with timing out was cancelled, so throw a timeout exception
innerException = new TimeoutException($"The server timed out while executing request.", ex.InnerException);
}
var result = HandleRequestException(ex.InnerException?.InnerException, innerException, url, ref retriesRemaining, () =>
{
if (innerException != null)
{
throw innerException;
}
});
if (!result)
{
throw;
}
}
} while (true); //Keep retrying as long as we have retries remaining
}
