/// <summary>
/// Boot-up is completed, this allows you to perform any other boot-up logic required for the application.
/// Resolution is frozen so now they can be used to resolve instances.
/// </summary>
/// <param name="umbracoApplication">
/// The current <see cref="UmbracoApplicationBase"/>
/// </param>
/// <param name="applicationContext">
/// The Umbraco <see cref="ApplicationContext"/> for the current application.
/// </param>
protected override void ApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
{
// Try and install the package.
if (!ZoombracoBootstrapper.Install(umbracoApplication, applicationContext))
{
return;
}
// Register custom routes.
RouteBuilder.RegisterRoutes(RouteTable.Routes);
// Ensure that the xml formatter does not interfere with API controllers.
GlobalConfiguration.Configuration.Formatters.XmlFormatter.SupportedMediaTypes.Clear();
// Clear out any CDN url requests on new image processing.
// This ensures that when we update an image the cached CDN result for rendering is deleted.
ImageProcessingModule.OnPostProcessing += (s, e) => { ZoombracoApplicationCache.RemoveItem(e.Context.Request.Unvalidated.RawUrl); };
// Assign indexer for full text searching.
UmbracoContentIndexer indexProvider = ExamineManager.Instance.IndexProviderCollection[ZoombracoConstants.Search.IndexerName] as UmbracoContentIndexer;
UmbracoExamineSearcher searchProvider = ExamineManager.Instance.SearchProviderCollection[ZoombracoConstants.Search.SearcherName] as UmbracoExamineSearcher;
if (indexProvider == null)
{
throw new ArgumentOutOfRangeException($"{ZoombracoConstants.Search.IndexerName} is missing. Please check the ExamineSettings.config file.");
}
if (searchProvider == null)
{
throw new ArgumentOutOfRangeException($"{ZoombracoConstants.Search.SearcherName} is missing. Please check the ExamineSettings.config file.");
}
UmbracoHelper helper = new UmbracoHelper(UmbracoContext.Current);
ContentHelper contentHelper = new ContentHelper(helper);
indexProvider.GatheringNodeData += (sender, e) => this.GatheringNodeData(sender, e, helper, contentHelper, applicationContext);
// Register the VortoPropertyAttribute as the default property processor so that any property can be made multilingual.
Ditto.RegisterDefaultProcessorType <VortoPropertyAttribute>();
}
/// <summary>
/// Gets the ImageProcessor Url from the CDN by the crop alias (from the "umbracoFile" property alias)
/// on the <see cref="Image"/> item.
/// </summary>
/// <param name="image">The <see cref="Image"/> this method extends.</param>
/// <param name="alias">The crop alias <example>thumbnail</example>.</param>
/// <param name="useCropDimensions">Whether to use the the crop dimensions to retrieve the url.</param>
/// <param name="useFocalPoint">Whether to use the focal point.</param>
/// <param name="quality">The quality of jpeg images.</param>
/// <param name="parameters">Any additional querystring parameters we need to add or replace.</param>
/// <returns>The <see cref="ImageProcessor.Web"/> Url. </returns>
public static string GetCdnCropUrl(this Image image, string alias, bool useCropDimensions = true, bool useFocalPoint = true, int quality = 85, NameValueCollection parameters = null)
{
if (HttpContext.Current == null)
{
return(GetCropUrl(image, alias, useCropDimensions, useFocalPoint, quality, parameters));
}
// Piece together the full qualified url. We use this to make a head requests that ImageProcessor.Web will intercept and
// route to the correct location. We'll cache that for subsequent requests.
string domain = HttpContext.Current.Request.Url.GetLeftPart(UriPartial.Authority);
string cropUrl = GetCropUrl(image, alias, useCropDimensions, useFocalPoint, quality, parameters);
string key = $"{domain}{cropUrl}";
string result = cropUrl;
int timeout = ZoombracoConfiguration.Instance.ImageCdnRequestTimeout;
// We don't want timeouts or errors causing constant slowdown of the page rendering so we always cache either the CDN or non CDN result.
// We do, however log extensively so that we can see why things are going wrong.
return((string)ZoombracoApplicationCache.GetOrAddItem(
key,
() =>
{
HttpWebResponse response = null;
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(key);
request.Method = "HEAD";
request.Timeout = timeout;
response = (HttpWebResponse)request.GetResponse();
HttpStatusCode responseCode = response.StatusCode;
if (responseCode == HttpStatusCode.OK)
{
result = response.ResponseUri.AbsoluteUri;
}
}
catch (WebException ex)
{
// If you are testing against localhost then this will happen.
if (ex.Response == null)
{
if (ex.Status == WebExceptionStatus.Timeout)
{
// Warn but about the timeout.
LogHelper.Warn <Image>($"CDN url request for {key} timed out. Consider adjusting the {ZoombracoConstants.Configuration.ImageCdnRequestTimeout} setting in the Web.Config.");
}
return GetCropUrl(image, alias, useCropDimensions, useFocalPoint, quality, parameters);
}
// ImageProcessor.Web will handle returning a response from the cache catering for different
// error codes from the cache providers. We'll just check for a url.
response = (HttpWebResponse)ex.Response;
if (response.ResponseUri != null)
{
result = response.ResponseUri.AbsoluteUri;
}
else
{
// Something is terribly wrong here.
LogHelper.Error <Image>($"Cannot get CDN url for {key}.", ex);
}
}
finally
{
response?.Dispose();
}
return result;
}));
}
