/// <summary>
/// Registers the Http Handler in configuration.
/// </summary>
public virtual void RegisterHandlerInConfiguration()
{
// supported only at design time
if (!this.DesignMode)
{
return;
}
// no point to add if http handler name or type is null
if (string.IsNullOrEmpty(this.HttpHandlerName) || (null == this.HttpHandlerType))
{
return;
}
// get the Web application configuration
IWebApplication webApplication = (IWebApplication)this.Site.GetService(typeof(IWebApplication));
if (null != webApplication)
{
global::System.Configuration.Configuration webConfig = webApplication.OpenWebConfiguration(false);
if (null == webConfig)
{
throw new ConfigurationErrorsException("web.config file not found to register the http handler.");
}
// get the <system.web> section
ConfigurationSectionGroup systemWeb = webConfig.GetSectionGroup("system.web");
if (null == systemWeb)
{
systemWeb = new ConfigurationSectionGroup();
webConfig.SectionGroups.Add("system.web", systemWeb);
}
// get the <httpHandlers> section
HttpHandlersSection httpHandlersSection = (HttpHandlersSection)systemWeb.Sections.Get("httpHandlers");
if (null == httpHandlersSection)
{
httpHandlersSection = new HttpHandlersSection();
systemWeb.Sections.Add("httpHandlers", httpHandlersSection);
}
// add the image handler
httpHandlersSection.Handlers.Add(new HttpHandlerAction(this.HttpHandlerName, this.HttpHandlerType.AssemblyQualifiedName, "*"));
// save the new web config
webConfig.Save();
}
}
private IEnumerable<ConfigurationHttpHandlersModel> ProcessHttpHandler(HttpHandlersSection httpHandlersSection)
{
if (httpHandlersSection == null)
{
return null;
}
var result = new List<ConfigurationHttpHandlersModel>();
foreach (HttpHandlerAction httpModule in httpHandlersSection.Handlers)
{
var resultItem = new ConfigurationHttpHandlersModel();
resultItem.Path = httpModule.Path;
resultItem.Verb = httpModule.Verb;
resultItem.Validate = httpModule.Validate;
resultItem.Type = httpModule.Type;
result.Add(resultItem);
}
return result;
}
public UsingHttpHandlersSection()
{
// Process the
// System.Web.Configuration.HttpHandlersSectionobject.
try
{
// <Snippet1>
// Get the Web application configuration.
System.Configuration.Configuration configuration = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("/aspnetTest");
// Get the section.
System.Web.Configuration.HttpHandlersSection httpHandlersSection = (System.Web.Configuration.HttpHandlersSection)configuration.GetSection("system.web/httphandlers");
// </Snippet1>
// <Snippet2>
// Get the handlers.
System.Web.Configuration.HttpHandlerActionCollection httpHandlers = httpHandlersSection.Handlers;
// </Snippet2>
// <Snippet3>
// Add a new HttpHandlerAction to the Handlers property HttpHandlerAction collection.
httpHandlersSection.Handlers.Add(new HttpHandlerAction(
"Calculator.custom",
"Samples.Aspnet.SystemWebConfiguration.Calculator, CalculatorHandler",
"GET",
true));
// </Snippet3>
// <Snippet4>
// Get a HttpHandlerAction in the Handlers property HttpHandlerAction collection.
HttpHandlerAction httpHandler = httpHandlers[0];
// </Snippet4>
// <Snippet5>
// Change the Path for the HttpHandlerAction.
httpHandler.Path = "Calculator.custom";
// </Snippet5>
// <Snippet6>
// Change the Type for the HttpHandlerAction.
httpHandler.Type =
"Samples.Aspnet.SystemWebConfiguration.Calculator, CalculatorHandler";
// </Snippet6>
// <Snippet7>
// Change the Verb for the HttpHandlerAction.
httpHandler.Verb = "POST";
// </Snippet7>
// <Snippet8>
// Change the Validate for the HttpHandlerAction.
httpHandler.Validate = false;
// </Snippet8>
// <Snippet9>
// Get the specified handler's index.
HttpHandlerAction httpHandler2 = new HttpHandlerAction(
"Calculator.custom",
"Samples.Aspnet.SystemWebConfiguration.Calculator, CalculatorHandler",
"GET", true);
int handlerIndex = httpHandlers.IndexOf(httpHandler2);
// </Snippet9>
// <Snippet10>
// Remove a HttpHandlerAction object
HttpHandlerAction httpHandler3 = new HttpHandlerAction(
"Calculator.custom",
"Samples.Aspnet.SystemWebConfiguration.Calculator, CalculatorHandler",
"GET", true);
httpHandlers.Remove(httpHandler3);
// </Snippet10>
// <Snippet11>
// Remove a HttpHandlerAction object with 0 index.
httpHandlers.RemoveAt(0);
// </Snippet11>
// <Snippet12>
// Clear all CustomError objects from the Handlers property HttpHandlerAction collection.
httpHandlers.Clear();
// </Snippet12>
// <Snippet13>
// Remove the handler with the specified verb and path.
httpHandlers.Remove("GET", "*.custom");
// </Snippet13>
Console.WriteLine("List the Errors collection:");
int handlerActionCtr = 0;
foreach (HttpHandlerAction handlerAction in httpHandlersSection.Handlers)
{
// <Snippet14>
string type = handlerAction.Type;
// </Snippet14>
// <Snippet15>
string verb = handlerAction.Verb;
// </Snippet15>
// <Snippet16>
bool validation = handlerAction.Validate;
// </Snippet16>
Console.WriteLine(" {0}: message", ++handlerActionCtr);
}
// Update if not locked.
if (!httpHandlersSection.SectionInformation.IsLocked)
{
configuration.Save();
Console.WriteLine("** Configuration updated.");
}
else
{
Console.WriteLine("** Could not update, section is locked.");
}
}
catch (System.ArgumentException e)
{
// Unknown error.
Console.WriteLine(e.ToString());
}
}
internal static void CheckConfiguration(ISite site)
{
if (site == null)
{
return;
}
IWebApplication app = (IWebApplication)site.GetService(typeof(IWebApplication));
if (app == null)
{
return;
}
Configuration config = app.OpenWebConfiguration(false);
HttpHandlersSection handlers = (HttpHandlersSection)config.GetSection("system.web/httpHandlers");
// Does the httpHandlers Secton already exist?
if (handlers == null)
{
// If not, add it...
handlers = new HttpHandlersSection();
ConfigurationSectionGroup group = config.GetSectionGroup("system.web");
// Does the system.web Section already exist?
if (group == null)
{
// If not, add it...
config.SectionGroups.Add("system.web", new ConfigurationSectionGroup());
group = config.GetSectionGroup("system.web");
}
if (group != null)
{
group.Sections.Add("httpHandlers", handlers);
}
}
HttpHandlerAction action = new HttpHandlerAction("*/ext.axd", "Ext.Net.ResourceHandler", "*", false);
// Does the ResourceHandler already exist?
if (handlers.Handlers.IndexOf(action) < 0)
{
// If not, add it...
handlers.Handlers.Add(action);
config.Save();
}
HttpModulesSection modules = (HttpModulesSection)config.GetSection("system.web/httpModules");
// Does the httpModules Secton already exist?
if (modules == null)
{
// If not, add it...
modules = new HttpModulesSection();
ConfigurationSectionGroup group = config.GetSectionGroup("system.web");
// Does the system.web Section already exist?
if (group == null)
{
// If not, add it...
config.SectionGroups.Add("system.web", new ConfigurationSectionGroup());
group = config.GetSectionGroup("system.web");
}
if (group != null)
{
group.Sections.Add("httpModules", modules);
}
}
//<add name="DirectRequestModule" type="Ext.Net.DirectRequestModule, Ext.Net" />
HttpModuleAction action2 = new HttpModuleAction("DirectRequestModule", "Ext.Net.DirectRequestModule, Ext.Net");
// Does the ResourceHandler already exist?
if (modules.Modules.IndexOf(action2) < 0)
{
// If not, add it...
modules.Modules.Add(action2);
config.Save();
}
}
