public static void RegisterRedirectHandler(this EditableXmlConfigHelper configHelper, string name, string redirectHandlerPath, string fullTypeName)
{
// Because the "system.webServer" ConfigurationSection is an IgnoreSection, it must be modified
// using the raw XML.
ConfigurationSection webServerSection = configHelper.Configuration.GetSection(ConfigHelperExtensions.WebServerSectionName);
if (webServerSection == null)
{
webServerSection = new IgnoreSection();
configHelper.Configuration.Sections.Add(ConfigHelperExtensions.WebServerSectionName, webServerSection);
}
XElement webServerElement;
string webServerSectionRawXml = webServerSection.SectionInformation.GetRawXml();
if (webServerSectionRawXml == null)
{
webServerElement = new XElement(ConfigHelperExtensions.WebServerSectionName);
}
else
{
webServerElement = XElement.Parse(webServerSectionRawXml);
}
XElement handlersElement = webServerElement.Element("handlers");
if (handlersElement == null)
{
handlersElement = new XElement("handlers");
webServerElement.Add(handlersElement);
}
XElement addElement = handlersElement.Elements("add")
.FirstOrDefault(e =>
{
XAttribute attr = e.Attribute("type");
return attr != null && attr.Value == fullTypeName;
});
if (addElement == null)
{
addElement = new XElement("add",
new XAttribute("name", name),
new XAttribute("verb", "GET"),
new XAttribute("path", redirectHandlerPath),
new XAttribute("type", fullTypeName));
handlersElement.Add(addElement);
}
webServerSection.SectionInformation.SetRawXml(webServerElement.ToString());
}
/// <summary>
/// Retrieves or creates the system.webServer section
/// </summary>
/// <remarks>
/// This section self initializes to empty xml, so if we detect that condition,
/// we initialize it to empty but valid xml so that it can be manipulated.
/// </remarks>
/// <returns>The existing or new system.webServer section.</returns>
public IgnoreSection GetOrCreateSystemWebServerSection()
{
// This section has no strongly typed equivalent, so we treat it only as an IgnoreSection
IgnoreSection webServerSection = this._configuration.GetSection(SystemWebServerSectionName) as IgnoreSection;
if (webServerSection == null)
{
webServerSection = new IgnoreSection();
this._configuration.Sections.Add(SystemWebServerSectionName, webServerSection);
}
// Detect empty xml and initialize it to legal empty state if found.
// We do this to simplify the logic of parsing it and adding new sections.
SectionInformation sectionInformation = webServerSection.SectionInformation;
string rawXml = sectionInformation.GetRawXml();
if (string.IsNullOrEmpty(rawXml))
{
rawXml = "<" + SystemWebServerSectionName + "/>";
sectionInformation.SetRawXml(rawXml);
}
return webServerSection;
}
