public void ProcessRequest(HttpContext context)
{
string gadgetFile = context.Request["gadget"];
string gadgetString = null;
string controlFactory = "gadget_v1.0";
if (!string.IsNullOrEmpty(gadgetFile))
{
string filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, GadgetFileList.GADGET_DIRECTORY + "\\" + gadgetFile);
if (File.Exists(filePath))
{
using (StreamReader sr = new StreamReader(filePath))
{
gadgetString = sr.ReadToEnd();
}
GadgetMaster gm = GadgetMaster.CreateGadget(controlFactory, gadgetString);
if (gm.HasExternalMessageBundles())
{
LoadMessageBundles(gm, gadgetFile);
}
if (gm.HasExternalTemplateLibraries())
{
LoadTemplates(gm, gadgetFile);
}
context.Response.StatusCode = 200;
context.Response.ContentType = "text/html";
StreamWriter writer = new StreamWriter(context.Response.OutputStream);
gm.Render(writer); //or context.Response.Write(gm.RenderToString());
}
else
{
context.Response.ContentType = "text/plain";
context.Response.StatusCode = 400;
context.Response.Write("File not found: " + gadgetFile);
}
}
else if (context.Request.HttpMethod.Equals("post", StringComparison.InvariantCultureIgnoreCase))
{
//check for form post
gadgetString = context.Request.Form["source"];
if (string.IsNullOrEmpty(gadgetString))
{
context.Response.ContentType = "text/plain";
context.Response.StatusCode = 400;
context.Response.Write("No content posted to render");
}
else
{
//gadgetString = gadgetString.Trim();
string tmp = context.Request.Form["parser"];
if (!string.IsNullOrEmpty(tmp))
{
controlFactory = tmp;
}
ControlFactory cf = ControlFactory.GetControlFactory(controlFactory);
RootElementMaster rm = cf.BuildControlTree(gadgetString);
rm.MyDataResolver = new SimpleDataPipelineResolver();
context.Response.StatusCode = 200;
context.Response.ContentType = "text/html";
if (rm.Errors.HasParseErrors())
{
context.Response.Write("<div style='border:2px solid red;'><ul>");
foreach (var err in rm.Errors.ParseErrors)
{
context.Response.Write("<li>");
context.Response.Write(err.ToString());
context.Response.Write("</li>");
}
context.Response.Write("</ul></div>");
}
StreamWriter writer = new StreamWriter(context.Response.OutputStream);
writer.AutoFlush = true;
rm.Render(writer);
}
}
else
{
context.Response.StatusCode = 200;
context.Response.ContentType = "text/html";
context.Response.Write("[No content specified]");
}
}
/// <summary>
/// Loads any local templates
/// </summary>
/// <param name="gm"></param>
/// <param name="gadgetFile"></param>
private void LoadTemplates(GadgetMaster gm, string gadgetFile)
{
if (!gm.HasExternalTemplateLibraries())
{
return;
}
string gadgetPrivatePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, RenderGadget.TEMPLATE_FILES + "\\" + gadgetFile + "\\");
string templatePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, RenderGadget.TEMPLATE_FILES);
LinkedList <TemplateLibraryDef> siteTemplates = new LinkedList <TemplateLibraryDef>();
LinkedList <TemplateLibraryDef> urlTemplates = new LinkedList <TemplateLibraryDef>();
foreach (var def in gm.TemplateLibraries.Libraries)
{
if (!string.IsNullOrEmpty(def.Uri))
{
if (def.Uri.StartsWith("site:"))
{
siteTemplates.AddFirst(def);
}
else if (def.Uri.StartsWith("http"))
{
urlTemplates.AddFirst(def);
}
}
}
if (urlTemplates.Count > 0)
{
List <KeyValuePair <TemplateLibraryDef, IAsyncResult> > fetchResults = new List <KeyValuePair <TemplateLibraryDef, IAsyncResult> >();
foreach (var def in urlTemplates)
{
fetchResults.Add(new KeyValuePair <TemplateLibraryDef, IAsyncResult>(def, AsyncRequestProcessor.EnqueueRequest(def.Uri)));
}
foreach (var keyset in fetchResults)
{
IAsyncResult resultHandle = keyset.Value;
resultHandle.AsyncWaitHandle.WaitOne(800); //wait 800 ms
if (!resultHandle.IsCompleted)
{
//failedFetch.Add(keyset);
}
else
{
try
{
RequestResult thisResult = AsyncRequestProcessor.EndRequest(resultHandle);
if (thisResult.ResponseCode == 200)
{
gm.LoadTemplateLibrary(keyset.Key.Uri, thisResult.ResponseString);
}
}
catch { }
}
}
}
//site templates
if (siteTemplates.Count > 0)
{
foreach (var def in siteTemplates)
{
int pos = def.Uri.IndexOf("site:");
if (pos == -1)
{
continue;
}
string part = def.Uri.Substring(pos + 5);
string filePath = Path.Combine(templatePath, part);
if (File.Exists(filePath))
{
string templateString = null;
using (StreamReader sr = new StreamReader(filePath))
{
templateString = sr.ReadToEnd();
}
if (!string.IsNullOrEmpty(templateString))
{
gm.LoadTemplateLibrary(def.Uri, templateString);
}
}
}
}
}
