private async Task <DrapoDynamic> IsRequestCustom(HttpContext context)
{
//Cookies
string theme = null;
string view = null;
Dictionary <string, string> cookieValues = this.ExtractCookieValues(context, this._options.Config.CookieName);
if (cookieValues != null)
{
if (cookieValues.ContainsKey("theme"))
{
theme = cookieValues["theme"];
}
if (cookieValues.ContainsKey("view"))
{
view = cookieValues["view"];
}
if (theme == "default")
{
theme = null;
}
if (view == "default")
{
view = null;
}
}
//Theme Or View
DrapoDynamic dynamic = await IsRequestThemeOrView(context, theme, view);
if (dynamic != null)
{
if (this._options.Config.HandlerCustom != null)
{
dynamic = await this._options.Config.HandlerCustom(dynamic);
}
return(dynamic);
}
//Dynamic
dynamic = await IsRequestDynamic(context, theme, view);
if (dynamic != null)
{
if (this._options.Config.HandlerCustom != null)
{
dynamic = await this._options.Config.HandlerCustom(dynamic);
}
return(dynamic);
}
return(null);
}
private async Task <DrapoDynamic> IsRequestDynamic(HttpContext context, string theme, string view)
{
DrapoDynamic dynamic = new DrapoDynamic();
if (!this.ExtractRequestDynamic(context, out string tag, out string code))
{
return(null);
}
for (int i = 0; i < this._options.Config.Dynamics.Count; i++)
{
DrapoDynamicHandler dynamicHandler = this._options.Config.Dynamics[i];
if (dynamicHandler.Tag != tag)
{
continue;
}
DrapoDynamicRequest request = new DrapoDynamicRequest();
request.Code = code;
request.Context = dynamicHandler.UseTheme ? theme : dynamicHandler.UseView ? view : null;
request.Path = context.Request.Path;
request.PathBase = context.Request.PathBase;
DrapoDynamicResponse response = await dynamicHandler.Handler(request);
if (response == null)
{
dynamic.Status = 404;
return(dynamic);
}
dynamic.Status = response.Status ?? 200;
dynamic.Headers = response.Headers;
if (dynamic.Status == 302)
{
return(dynamic);
}
dynamic.ETag = GenerateETag(Encoding.UTF8.GetBytes(response.Content));
dynamic.LastModified = response.LastModified.ToString("R");
dynamic.ContentType = dynamicHandler.ContentType;
dynamic.ContentData = response.Content;
return(dynamic);
}
return(null);
}
private async Task <DrapoDynamic> IsRequestCustomType(HttpContext context, string path, string custom, string extension, string contentType)
{
string key = string.Format("{0}{1}", custom, path);
DrapoFile file = this.GetCacheFile(key);
if (file == null)
{
file = CreateCacheFile(context, path, custom, extension, key);
}
if (!file.Exists)
{
return(null);
}
DrapoDynamic dynamic = new DrapoDynamic();
dynamic.ETag = file.ETag;
dynamic.LastModified = file.LastModified;
dynamic.ContentData = file.ContentData;
dynamic.ContentType = contentType;
return(await Task.FromResult <DrapoDynamic>(dynamic));
}
public async Task Invoke(HttpContext context)
{
DrapoComponent component = null;
DrapoComponentFile file = null;
DrapoDynamic dynamic = null;
//Activator
if (this.IsActivator(context))
{
//JS
bool isCache = ((context.Request.Headers.Keys.Contains("If-None-Match")) && (context.Request.Headers["If-None-Match"].ToString() == this._libETag));
context.Response.OnStarting(state =>
{
var httpContext = (HttpContext)state;
httpContext.Response.StatusCode = isCache ? (int)HttpStatusCode.NotModified : (int)HttpStatusCode.OK;
httpContext.Response.Headers["ETag"] = new[] { this._libETag };
httpContext.Response.Headers.Add("Last-Modified", new[] { this._libLastModified });
httpContext.Response.Headers.Add("Cache-Control", new[] { "no-cache" });
httpContext.Response.Headers.Add("Content-Type", new[] { "application/javascript" });
AppendHeaderContainerId(httpContext);
return(Task.FromResult(0));
}, context);
if (!isCache)
{
await context.Response.WriteAsync(this._libContent);
}
}
else if (this.IsConfig(context))
{
//Config
bool isCache = ((context.Request.Headers.Keys.Contains("If-None-Match")) && (context.Request.Headers["If-None-Match"].ToString() == this._configETag));
context.Response.OnStarting(state =>
{
var httpContext = (HttpContext)state;
httpContext.Response.StatusCode = isCache ? (int)HttpStatusCode.NotModified : (int)HttpStatusCode.OK;
httpContext.Response.Headers["ETag"] = new[] { this._configETag };
httpContext.Response.Headers.Add("Last-Modified", new[] { this._libLastModified });
httpContext.Response.Headers.Add("Cache-Control", new[] { "no-cache" });
httpContext.Response.Headers.Add("Content-Type", new[] { "application/json" });
AppendHeaderContainerId(httpContext);
return(Task.FromResult(0));
}, context);
if (!isCache)
{
await context.Response.WriteAsync(this._configContent);
}
}
else if (this.IsComponentFile(context, out component, out file))
{
//Component File
string key = this.CreateKeyComponentFile(component, file);
string eTag = this.GetComponentFileEtag(component, file, key);
bool isCache = ((context.Request.Headers.Keys.Contains("If-None-Match")) && (context.Request.Headers["If-None-Match"].ToString() == eTag));
context.Response.OnStarting(state =>
{
var httpContext = (HttpContext)state;
httpContext.Response.StatusCode = isCache ? (int)HttpStatusCode.NotModified : (int)HttpStatusCode.OK;
httpContext.Response.Headers["ETag"] = new[] { eTag };
httpContext.Response.Headers.Add("Last-Modified", new[] { this.GetComponentFileLastModified(component, file, key) });
httpContext.Response.Headers.Add("Cache-Control", new[] { "no-cache" });
httpContext.Response.Headers.Add("Content-Type", new[] { this.GetComponentFileContentType(component, file, key) });
AppendHeaderContainerId(httpContext);
return(Task.FromResult(0));
}, context);
if (!isCache)
{
await context.Response.WriteAsync(this.GetComponentFileContent(component, file, key));
}
}
else if ((dynamic = await this.IsRequestCustom(context)) != null)
{
//Custom
bool isCache = ((context.Request.Headers.Keys.Contains("If-None-Match")) && (context.Request.Headers["If-None-Match"].ToString() == dynamic.ETag));
context.Response.OnStarting(state =>
{
var httpContext = (HttpContext)state;
httpContext.Response.StatusCode = isCache ? (int)HttpStatusCode.NotModified : dynamic.Status;
if (!string.IsNullOrEmpty(dynamic.ETag))
{
httpContext.Response.Headers["ETag"] = new[] { dynamic.ETag }
}
;
if (!string.IsNullOrEmpty(dynamic.LastModified))
{
httpContext.Response.Headers.Add("Last-Modified", new[] { dynamic.LastModified });
}
httpContext.Response.Headers.Add("Cache-Control", new[] { "no-cache" });
if (!string.IsNullOrEmpty(dynamic.ContentType))
{
httpContext.Response.Headers.Add("Content-Type", new[] { dynamic.ContentType });
}
if (dynamic.Headers != null)
{
foreach (KeyValuePair <string, string> entry in dynamic.Headers)
{
httpContext.Response.Headers.Add(entry.Key, new[] { entry.Value });
}
}
AppendHeaderContainerId(httpContext);
return(Task.FromResult(0));
}, context);
if ((!isCache) && (!string.IsNullOrEmpty(dynamic.ContentData)))
{
await context.Response.WriteAsync(dynamic.ContentData, Encoding.UTF8);
}
}
else
{
if (HasHeaderContainerId())
{
context.Response.OnStarting(state =>
{
var httpContext = (HttpContext)state;
AppendHeaderContainerId(httpContext);
return(Task.FromResult(0));
}, context);
}
await _next.Invoke(context);
}
}
