internal static string GetClientProxyScript(HttpContext context)
{
WebServiceData webServiceData = WebServiceData.GetWebServiceData(context, context.Request.FilePath);
DateTime lastModifiedDate = GetAssemblyModifiedTime(webServiceData.TypeData.Type.Assembly);
// If the browser sent this header, we can check if we need to resend
string modifiedSince = context.Request.Headers["If-Modified-Since"];
if (modifiedSince != null)
{
DateTime header;
if (DateTime.TryParse(modifiedSince, out header))
{
// We are done if the assembly hasn't been modified
if (header >= lastModifiedDate)
{
context.Response.StatusCode = 304;
return(null);
}
}
}
bool debug = RestHandlerFactory.IsClientProxyDebugRequest(context.Request.PathInfo);
// Only cache for release proxy script (/js)
if (!debug)
{
// Only cache if we get a reasonable last modified date
if (lastModifiedDate.ToUniversalTime() < DateTime.UtcNow)
{
// Cache the resource so we don't keep processing the same requests
HttpCachePolicy cachePolicy = context.Response.Cache;
cachePolicy.SetCacheability(HttpCacheability.Public);
cachePolicy.SetLastModified(lastModifiedDate);
// expires is necessary so that the browser at least does an If-Modified-Since request on every request.
// without that, the browser wouldn't request a new proxy until the user hits refresh.
// Use one year ago to reasonably ensure "past" interpretation
cachePolicy.SetExpires(lastModifiedDate.AddYears(-1));
}
}
WebServiceClientProxyGenerator proxyGenerator = new WebServiceClientProxyGenerator(context.Request.FilePath, debug);
return(proxyGenerator.GetClientProxyScript(webServiceData));
}
public virtual IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)
{
IHttpHandler handler;
IHttpHandlerFactory factory;
if (RestHandlerFactory.IsRestRequest(context))
{
// It's a REST request
factory = _restHandlerFactory;
}
else
{
// It's a regular asmx web request, so delegate to the WebServiceHandlerFactory
factory = _webServiceHandlerFactory;
}
handler = factory.GetHandler(context, requestType, url, pathTranslated);
bool requiresSession = handler is IRequiresSessionState;
if (handler is IHttpAsyncHandler)
{
if (requiresSession)
{
return(new AsyncHandlerWrapperWithSession(handler, factory));
}
else
{
return(new AsyncHandlerWrapper(handler, factory));
}
}
if (requiresSession)
{
return(new HandlerWrapperWithSession(handler, factory));
}
else
{
return(new HandlerWrapper(handler, factory));
}
}