private static void SendBoxedError(HttpContext context, Exception ex)
{
JsonResult result = new JsonResult();
if (ex.InnerException != null)
ex = ex.InnerException;
result.ErrorMessage = ex.Message;
result.StackTrace = ex.StackTrace;
result.Status = JsonResultStatus.Error;
SendBoxedError(context.Response, result);
}
/// <summary>
/// Sets the status of the specified JsonResult to JsonResultStatus.Error and
/// sends the error message to the client in a div. This is used to
/// respond to "DataBox" requests that fail due to an exception.
/// </summary>
/// <param name="response">The HttpResponse object to be used to send the error.</param>
/// <param name="jsonResult">The JsonResult to box the error for.</param>
public static void SendBoxedError(HttpResponse response, JsonResult jsonResult)
{
LogManager.CurrentLog.AddEntry("An error occurred fulfilling a box request: {0}\r\n{1}", LogEventType.Error, jsonResult.ErrorMessage, jsonResult.StackTrace);
jsonResult.Status = JsonResultStatus.Error;
string html = "<div class='error'>An error occurred fulfilling the request, we apologize for the inconvenience please try again shortly (";
html += jsonResult.ErrorMessage + ").</br>";
#if DEBUG
html += jsonResult.StackTrace + "</br>";
#endif
html += "</div>";
response.Clear();
response.Write(html);
response.Flush();
response.SuppressContent = true;
HttpContext.Current.ApplicationInstance.CompleteRequest();
//response.End();
}
/// <summary>
/// This method will send the "ConglomerateScript" for the specified templateName.
/// </summary>
/// <remarks>A ConglomerateScript represents all the scripts required by the JsonControls
/// in an ascx file. The BoxUserControl class prepares the resulting ascx control for
/// Json/Box rendering.</remarks>
/// <param name="context">The HttpContext significant to the current request.</param>
/// <param name="templateName">The name of an ascx file contained in the
/// BoxServer.BoxTemplateDirectory or the virutal path to an ascx file.</param>
/// <returns></returns>
//public static void SendBoxScriptResponse(HttpContext context, string templateName)
//{
// string virtualBoxPath = GetVirtualBoxPath(context, templateName);
// try
// {
// if (string.IsNullOrEmpty(virtualBoxPath))
// throw new InvalidOperationException("The box template could not be found: [" + templateName + "]");
// string requesterId = context.Request.QueryString["domid"];
// HttpResponse response = context.Response;
// //string responseString = BoxServer.GetScriptString(virtualBoxPath, requesterId);
// //GetDataBoxResponse(context, virtualBoxPath, null);
// response.Clear();
// response.Write(responseString);
// response.Flush();
// response.SuppressContent = true;
// context.ApplicationInstance.CompleteRequest();
// }
// catch (Exception ex)
// {
// SendBoxedError(context, ex);
// }
//}
/// <summary>
/// Applies a template to the Data property of the specified JsonResult object
/// and sends the result to the client as an html section or "Box".
/// </summary>
/// <param name="context">The HttpContext</param>
/// <param name="jsonResult">The result to be Boxed</param>
public static void SendDataBoxResponse(HttpContext context, JsonResult jsonResult)
{
#region check JsonResult
HttpResponse response = context.Response;
// Check the status of the jsonResult
// if status is error send default error box
if (jsonResult.Status == JsonResultStatus.Error)
{
SendBoxedError(response, jsonResult);
return;
}
if (jsonResult.Data == null)
{
SendBoxedError(response, jsonResult);
return;
}
#endregion
HttpRequest request = context.Request;
string boxTemplateName = request.QueryString["dbx"];// TODO: create enums to represent all the magic strings used by the different script components
string clientKey = request.QueryString["ck"];
if (string.IsNullOrEmpty(boxTemplateName))
{
SendBoxedError(response, jsonResult);
return;
}
object[] objectsToTemplate = new object[] { jsonResult.Data };
if (jsonResult.Data is Array)
objectsToTemplate = (object[])jsonResult.Data;
BoxResponses responses = SingletonHelper.GetApplicationProvider<BoxResponses>();
string allHtml = string.Empty;
string allScript = string.Empty;
try
{
foreach (object objectToTemplate in objectsToTemplate)
{
// getting the property variables for each object will allow objects of different types to
// be templated in one pass. This incurs some processing overhead but the flexibility is
// worth it.
string[] propertyVariables = GetPropertyVariables(objectToTemplate.GetType());
string virtualBoxPath = GetVirtualDataBoxPath(context, objectToTemplate.GetType(), boxTemplateName);
if (string.IsNullOrEmpty(virtualBoxPath))
SendBoxedError(context, ExceptionHelper.CreateException<JsonInvalidOperationException>("Unable to find specified data box template ['{0}.{1}']", objectToTemplate.GetType().Name, boxTemplateName));
BoxResponse dataBoxResponse = GetBoxResponse(context, virtualBoxPath, objectToTemplate, true);
string html = dataBoxResponse.Html;
string script = dataBoxResponse.Script;
allHtml += GetVariableReplaceText(html, propertyVariables, objectToTemplate);
allScript += GetVariableReplaceText(script, propertyVariables, objectToTemplate);
}
}
catch (Exception ex)
{
SendBoxedError(context, ex);
}
responses.Add(clientKey, new BoxResponse(allHtml, allScript));
response.Clear();
response.Write(allHtml);
response.Flush();
response.SuppressContent = true;
HttpContext.Current.ApplicationInstance.CompleteRequest();
//response.End();
}
private static JsonResult GetJsonResultFromInvoke(string typeName, string methodName, string[] parameters)
{
Expect.IsNotNullOrEmpty(typeName, "typeName not specified");
Expect.IsNotNullOrEmpty(methodName, "methodName not specified");
JsonResult ret = new JsonResult();
ret.Status = JsonResultStatus.Unknown;
ret.Input = parameters;
if (HttpContext.Current == null)
{
ret.Status = JsonResultStatus.Error;
ret.Data = NewInvalidOperationException();
}
else
{
object handler = GetInstance(typeName);//HttpContext.Current.Session[typeName.ToLowerInvariant()];
if (handler == null)
{
ret.Status = JsonResultStatus.Error;
ret.Data = new Exception("The specified type was not registered to handle json requests");
}
else
{
MethodInfo[] methods = handler.GetType().GetMethods();
foreach (MethodInfo method in methods)
{
JsonMethod jsonMethodAttribute = null;
if (!CustomAttributeExtension.HasCustomAttributeOfType <JsonMethod>(method, out jsonMethodAttribute))
{
continue;
}
if (method.Name.ToLowerInvariant().Equals(methodName.ToLowerInvariant()))
{
try
{
switch (jsonMethodAttribute.Verb)
{
case Verbs.GET:
ret.Data = method.Invoke(handler, (object[])parameters);
ret.Status = JsonResultStatus.Success;
break;
case Verbs.POST:
ParameterInfo[] parameterInfos = method.GetParameters();
string[] jsonParameters = null;
using (StreamReader sr = new StreamReader(HttpContext.Current.Request.InputStream))
{
string inputString = sr.ReadToEnd();
jsonParameters = StringExtensions.DelimitSplit(inputString, ParameterDelimiter);
}
if (jsonParameters.Length != parameterInfos.Length)
{
ExceptionHelper.Throw <JsonInvalidOperationException>("Parameter count mismatch in call to method {0}, required {1} parameters received {2}", method.Name, parameterInfos.Length, jsonParameters.Length);
}
List <object> parameterList = new List <object>();
for (int i = 0; i < parameterInfos.Length; i++)
{
ParameterInfo parameterInfo = parameterInfos[i];
Serializer serializer = new Serializer(parameterInfo.ParameterType);
parameterList.Add(serializer.Deserialize(jsonParameters[i]));
}
ret.Data = method.Invoke(handler, parameterList.ToArray());
ret.Status = JsonResultStatus.Success;
ret.Input = jsonParameters;
break;
}
break;
}
catch (Exception ex)
{
string parms = parameters != null?StringExtensions.ToDelimited(parameters, ",") : "";
LogManager.CurrentLog.AddEntry("An error occurred during Javascript Method Invokation: typeName={0};methodName={1};parameters={2}", ex, typeName, methodName, parms);
if (ex.InnerException != null)
{
ex = ex.InnerException;
}
ret.Status = JsonResultStatus.Error;
ret.Data = ex.Message;
ret.ErrorMessage = ex.Message;
#if DEBUG
ret.StackTrace = ex.StackTrace;
#endif
break;
}
}
}
}
}
return(ret);
}
