private void context_BeginRequest(object sender, EventArgs e)
{
HttpApplication application = sender as HttpApplication;
if (application != null && application.Context != null && application.Request != null && _Manifest != null)
{
HttpRequest request = application.Request;
RequestAnalysis analysis = _Manifest.AnalyzeRequest(request);
if (analysis.IsRecurringTask)
{
ConfiguredTask taskConfig;
if (_Manifest.TryGetTask(analysis.TaskIdentifier, out taskConfig))
{
if (RevaleeRegistrar.ValidateCallback(new HttpRequestWrapper(request)))
{
if (taskConfig.SetLastOccurrence(analysis.Occurrence))
{
application.Context.Items.Add(_InProcessContextKey, BuildCallbackDetails(request));
application.Context.RewritePath(taskConfig.Url.AbsolutePath, true);
_Manifest.Reschedule(taskConfig);
return;
}
}
}
application.Context.Response.StatusCode = (int)HttpStatusCode.OK;
application.Context.Response.SuppressContent = true;
application.CompleteRequest();
return;
}
}
}
internal RequestAnalysis AnalyzeRequest(HttpRequest request)
{
string absolutePath = request.Url.AbsolutePath;
if (absolutePath.StartsWith(_RecurringTaskHandlerAbsolutePath, StringComparison.Ordinal))
{
var analysis = new RequestAnalysis();
analysis.IsRecurringTask = true;
int parameterStartingIndex = _RecurringTaskHandlerAbsolutePath.Length;
if (absolutePath.Length > parameterStartingIndex)
{
// AbsolutePath format:
// task -> ~/__RevaleeRecurring.axd/{identifier}/{occurrence}
// heartbeat -> ~/__RevaleeRecurring.axd/{heartbeatId}
int taskParameterDelimiterIndex = absolutePath.IndexOf('/', parameterStartingIndex);
if (taskParameterDelimiterIndex < 0)
{
// no task parameter delimiter
if ((absolutePath.Length - parameterStartingIndex) == 32)
{
Guid heartbeatId;
if (Guid.TryParseExact(absolutePath.Substring(parameterStartingIndex), "N", out heartbeatId))
{
if (heartbeatId.Equals(_Id))
{
this.OnActivate();
}
}
}
}
else
{
// task parameter delimiter present
if ((absolutePath.Length - taskParameterDelimiterIndex) > 1)
{
if (long.TryParse(absolutePath.Substring(taskParameterDelimiterIndex + 1), NumberStyles.None, CultureInfo.InvariantCulture, out analysis.Occurrence))
{
analysis.TaskIdentifier = absolutePath.Substring(parameterStartingIndex, taskParameterDelimiterIndex - parameterStartingIndex);
}
}
}
}
// If the TaskIdentifier is not set the default will be string.Empty, which will be discarded by the HttpModule
return(analysis);
}
return(NonRecurringRequest);
}
private void context_BeginRequest(object sender, EventArgs e)
{
HttpApplication application = sender as HttpApplication;
if (application != null && application.Context != null && application.Request != null && _Manifest != null)
{
HttpRequest request = application.Request;
RequestAnalysis analysis = _Manifest.AnalyzeRequest(request);
if (analysis.IsRecurringTask)
{
ConfiguredTask taskConfig;
HttpStatusCode statusCode;
if (_Manifest.TryGetTask(analysis.TaskIdentifier, out taskConfig))
{
if (request.HttpMethod == "POST")
{
if (RevaleeRegistrar.ValidateCallback(new HttpRequestWrapper(request)))
{
if (taskConfig.SetLastOccurrence(analysis.Occurrence))
{
_Manifest.Reschedule(taskConfig);
application.Context.Items.Add(_InProcessContextKey, BuildCallbackDetails(request));
application.Context.RewritePath(taskConfig.Url.AbsolutePath, true);
return;
}
else
{
statusCode = HttpStatusCode.Accepted;
}
}
else
{
statusCode = HttpStatusCode.Unauthorized;
}
}
else
{
if (request.HttpMethod == "GET" || request.HttpMethod == "HEAD")
{
if (request.Headers["Expect"] == "100-continue")
{
application.Context.Response.StatusCode = (int)HttpStatusCode.Continue;
return;
}
else
{
statusCode = HttpStatusCode.MethodNotAllowed;
}
}
else
{
statusCode = HttpStatusCode.NotImplemented;
}
}
}
else
{
statusCode = HttpStatusCode.NoContent;
}
application.Context.Response.StatusCode = (int)statusCode;
application.Context.Response.SuppressContent = true;
application.CompleteRequest();
return;
}
}
}
internal RequestAnalysis AnalyzeRequest(HttpRequest request)
{
string absolutePath = request.Url.AbsolutePath;
if (absolutePath.StartsWith(_RecurringTaskHandlerAbsolutePath, StringComparison.Ordinal))
{
var analysis = new RequestAnalysis();
analysis.IsRecurringTask = true;
int parameterStartingIndex = _RecurringTaskHandlerAbsolutePath.Length;
if (absolutePath.Length > parameterStartingIndex)
{
// AbsolutePath format:
// task -> ~/__RevaleeRecurring.axd/{identifier}/{occurrence}
// heartbeat -> ~/__RevaleeRecurring.axd/{heartbeatId}
int taskParameterDelimiterIndex = absolutePath.IndexOf('/', parameterStartingIndex);
if (taskParameterDelimiterIndex < 0)
{
// no task parameter delimiter
if ((absolutePath.Length - parameterStartingIndex) == 32)
{
Guid heartbeatId;
if (Guid.TryParseExact(absolutePath.Substring(parameterStartingIndex), "N", out heartbeatId))
{
if (heartbeatId.Equals(_Id))
{
this.OnActivate();
}
}
}
}
else
{
// task parameter delimiter present
if ((absolutePath.Length - taskParameterDelimiterIndex) > 1)
{
if (long.TryParse(absolutePath.Substring(taskParameterDelimiterIndex + 1), NumberStyles.None, CultureInfo.InvariantCulture, out analysis.Occurrence))
{
analysis.TaskIdentifier = absolutePath.Substring(parameterStartingIndex, taskParameterDelimiterIndex - parameterStartingIndex);
}
}
}
}
// If the TaskIdentifier is not set the default will be string.Empty, which will be discarded by the HttpModule
return analysis;
}
return NonRecurringRequest;
}
