internal WebPageHttpHandler(WebPage webPage, Lazy<WebPageRenderingBase> startPage)
{
if (webPage == null)
{
throw new ArgumentNullException("webPage");
}
_webPage = webPage;
_startPage = startPage;
}
/// <summary>
/// Executes the page code of the desired method
/// and send it as JSON to the Http Response.
/// </summary>
/// <param name="WebPage"></param>
public void JsonResponse(System.Web.WebPages.WebPage WebPage)
{
var data = Run(WebPage);
WebPage.Response.ContentType = "application/json";
// JSON.NET Works Better: good datetime formatting as ISO-8601 and some bugfixes details.
// IMPORTANT: Ideally, we must return dates as UTC, but currently datetimes from database are not detected as 'local'
// so trying to return as 'utc' with DateTimezoneHandling.UTc results in the same time with a 'Z' in the end, that's an error.
// Almost, using 'Local' will append the correct offset and browsers/javascript engines do the conversion correctly.
WebPage.Response.Write(Newtonsoft.Json.JsonConvert.SerializeObject(data, new Newtonsoft.Json.JsonSerializerSettings
{
DateTimeZoneHandling = Newtonsoft.Json.DateTimeZoneHandling.Local
}));
//Json.Write(jsondata, Response.Output);
WebPage.Response.End();
}
/// <summary>
/// Executes the page code of the desired method
/// and returns an object with the result.
/// That result must be piped to the response manually
/// (or use JsonResponse).
/// </summary>
/// <param name="WebPage"></param>
/// <returns></returns>
public dynamic Run(System.Web.WebPages.WebPage WebPage)
{
this.WebPage = WebPage;
dynamic result = null;
// For all requests:
// No cache
WebPage.Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1));
WebPage.Response.Cache.SetValidUntilExpires(false);
WebPage.Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
WebPage.Response.Cache.SetCacheability(HttpCacheability.NoCache);
WebPage.Response.Cache.SetNoStore();
// No cookies
WebPage.Response.Cookies.Clear();
try
{
switch (Request.HttpMethod.ToUpper())
{
case "GET":
result = Get();
break;
case "POST":
// By general, if everything goes fine, a 'post' must return
// the http code '201:Created'. On any error will be replaced.
// And can be explicitely replaced by the specific page on the
// overrided 'Post()' method
WebPage.Response.StatusCode = 201;
result = Post();
break;
case "PUT":
result = Put();
break;
case "DELETE":
result = Delete();
break;
case "OPTIONS":
// Just let asp.net to response empty with the
// custom headers for CORS that were set in the web.config
break;
default:
throw new HttpException(405, String.Format("{0} is not allowed", Request.HttpMethod));
}
}
catch (ValidationException valEx)
{
result = new Dictionary <string, dynamic>();
result["errorMessage"] = LcRessources.ValidationSummaryTitle;
result["errorSource"] = "validation";
var errors = new System.Collections.Hashtable();
if (!String.IsNullOrEmpty(valEx.ContainerName))
{
errors[valEx.ContainerName + "." + valEx.ParamName] = valEx.Message;
}
errors[valEx.ParamName] = valEx.Message;
result["errors"] = errors;
WebPage.Response.StatusCode = 400;
}
catch (HttpException http)
{
result = new Dictionary <string, dynamic>();
WebPage.Response.StatusCode = http.GetHttpCode();
result["errorMessage"] = http.Message;
if (!ModelState.IsValid)
{
result["errorSource"] = "validation";
result["errors"] = ModelState.Errors();
}
if (WebPage.Response.StatusCode == 500)
{
if (ASP.LcHelpers.InDev)
{
result["exception"] = http;
}
else
{
LcLogger.LogAspnetError(http);
}
}
}
catch (Exception ex)
{
result = new Dictionary <string, dynamic>();
result["errorMessage"] = ex.Message;
// Bad Format code for "Constraint" or Internal server error:
WebPage.Response.StatusCode = ex is ConstraintException ? 400 : 500;
if (ASP.LcHelpers.InDev)
{
result["exception"] = ex;
}
else
{
LcLogger.LogAspnetError(ex);
}
}
return(result);
}
public WebPageHttpHandler(WebPage webPage)
: this(webPage, new Lazy<WebPageRenderingBase>(() => System.Web.WebPages.StartPage.GetStartPage(webPage, StartPageFileName, GetRegisteredExtensions())))
{
}
public WebPageHttpHandler(WebPage webPage) {
if (webPage == null) {
throw new ArgumentNullException("webPage");
}
_webPage = webPage;
}
public WebPageHttpHandler(WebPage webPage)
: this(webPage, new Lazy <WebPageRenderingBase>(() => System.Web.WebPages.StartPage.GetStartPage(webPage, StartPageFileName, GetRegisteredExtensions())))
{
}
