protected async Task GetErrorPage(StreamWriter writer, Exception error, SourceLocation location)
{
var fileSystem = new EmbeddedResourceFileSystem(typeof(WebInitializer).Assembly);
string content;
using (var reader = new StreamReader(fileSystem.OpenRead(PathInfo.Create("Core/error_partial.html"))))
{
content = await reader.ReadToEndAsync();
}
var templateInfo = new StringTemplateInfo("error", content);
var view = await ((IViewEngine)Resolver.GetService(typeof(IViewEngine)))
.CreateViewAsync(templateInfo, typeof(ErrorViewModel)).ConfigureAwait(false);
if (location == null)
{
var modelWithoutLocation = new ErrorViewModel
{
ErrorMessage = error.Message,
Details = error.StackTrace
};
view.Render(modelWithoutLocation, new RenderingContext(writer));
return;
}
var templateRepository = (ITemplateRepository)this.Resolver.GetService(typeof(ITemplateRepository));
var sourceTemplate = await templateRepository.GetTemplateAsync(location.TemplateId).ConfigureAwait(false);
string sourceTemplateSource;
using (var reader = new StreamReader(sourceTemplate.Open()))
{
sourceTemplateSource = await reader.ReadToEndAsync().ConfigureAwait(false);
}
var model = new ErrorViewModel
{
TemplateId = location.TemplateId,
ErrorMessage = error.Message,
Details = error.StackTrace,
Before = sourceTemplateSource.Substring(0, location.Index),
Node = sourceTemplateSource.Substring(location.Index, location.Length),
After = sourceTemplateSource.Substring(location.Index + location.Length),
Text = HttpUtility.JavaScriptStringEncode(sourceTemplateSource),
Range = GetRange(sourceTemplateSource, location)
};
view.Render(model, new RenderingContext(writer));
}
public static string ExecuteJavascript(string view, object model, string viewName)
{
using (var context = new JavascriptContext())
{
var fileSystem = new EmbeddedResourceFileSystem(typeof (WebInitializer).Assembly);
using (var reader = new StreamReader(fileSystem.OpenRead(PathInfo.Create("Core/js/ViewEngine.js"))))
{
context.Run(reader.ReadToEnd());
}
context.Run("var repo = { actions: {}, register: function(name, action) { this.actions[name] = action; } };");
context.Run(view);
context.SetParameter("m", model);
context.Run(
"var ctx = new Tcn.StringRenderingContext(); repo.actions[\""+ viewName +"\"].render(ctx, m); var result = ctx.out;");
return (string) context.GetParameter("result");
}
}
