public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (HostingEnvironmentExtensions.IsDevelopment(env))
{
DeveloperExceptionPageExtensions.UseDeveloperExceptionPage(app);
}
else
{
ExceptionHandlerExtensions.UseExceptionHandler(app, "/Error");
HstsBuilderExtensions.UseHsts(app);
}
HttpsPolicyBuilderExtensions.UseHttpsRedirection(app);
StaticFileExtensions.UseStaticFiles(app);
MvcApplicationBuilderExtensions.UseMvc(app);
}
public async Task Invoke(HttpContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
using (StopWatchTimer stopwatchTimer = StopWatchTimer.Initialise(_timings))
{
string fileExtension = RouteFileExtension(context);
if (!String.IsNullOrEmpty(fileExtension) &&
StaticFileExtensions.Contains($"{fileExtension};"))
{
await _next(context);
return;
}
string route = RouteLowered(context);
if (route.Length > 1 && route[route.Length - 1] == Constants.ForwardSlashChar)
{
route = route.Substring(0, route.Length - 1);
}
string cacheName = $"Seo Cache {route}";
CacheItem cacheItem = _memoryCache.GetCache().Get(cacheName);
if (cacheItem == null)
{
_seoProvider.GetSeoDataForRoute(route, out string title, out string description,
out string author, out List <string> tags);
cacheItem = new CacheItem(cacheName, new SeoCacheItem(title, description, author, tags));
_memoryCache.GetCache().Add(cacheName, cacheItem);
}
SeoCacheItem seoCache = (SeoCacheItem)cacheItem.Value;
context.Items[SeoMetaAuthor] = seoCache.Author;
context.Items[SeoTitle] = seoCache.Title;
context.Items[SeoMetaDescription] = seoCache.Description;
context.Items[SeoMetaKeywords] = seoCache.Keywords;
}
await _next(context);
}
