ajaxsettingssectionhandler.cs

来自「AJAX开发工具包」· CS 代码 · 共 146 行

/*
 * MS	06-04-04	added DebugEnabled web.config property <debug enabled="true"/>
 * MS	06-04-05	added oldStyle section in web.config
 * MS	06-04-12	added urlNamespaceMapping/@useAssemblyQualifiedName
 * 
 * 
 * 
 * 
 */
using System;
using System.Xml;
using System.Configuration;

namespace AjaxPro
{
	internal class AjaxSettingsSectionHandler : IConfigurationSectionHandler
	{
		#region IConfigurationSectionHandler Members

		public object Create(object parent, object configContext, System.Xml.XmlNode section)
		{
			AjaxSettings settings = new AjaxSettings();

			foreach(XmlNode n in section.ChildNodes)
			{
				if(n.Name == "coreScript")
				{
					if(n.InnerText != null && n.InnerText.Length > 0) 
					{
						settings.ScriptReplacements.Add("core", n.InnerText);
					}
				}
				else if(n.Name == "scriptReplacements")
				{
					foreach(XmlNode file in n.SelectNodes("file"))
					{
						string name = "";
						string path = "";

						if(file.Attributes["name"] != null)
						{
							name = file.Attributes["name"].InnerText;
							if(file.Attributes["path"] != null) path = file.Attributes["path"].InnerText;

							if(settings.ScriptReplacements.ContainsKey(name))
								settings.ScriptReplacements[name] = path;
							else
								settings.ScriptReplacements.Add(name, path);
						}
					}
				}
				else if(n.Name == "urlNamespaceMappings")
				{
					settings.UseAssemblyQualifiedName = n.SelectSingleNode("@useAssemblyQualifiedName[.='true']") != null;

					XmlNode ns, url;

					foreach(XmlNode e in n.SelectNodes("add"))
					{
						ns = e.SelectSingleNode("@type");
						url = e.SelectSingleNode("@path");

						if(ns == null || ns.InnerText == "" || url == null || url.InnerText == "")
							continue;

						if(settings.UrlNamespaceMappings.Contains(url.InnerText))
							throw new Exception("Duplicate namespace mapping '" + url.InnerText + "'.");

						settings.UrlNamespaceMappings.Add(url.InnerText, ns.InnerText);
					}
				}
				else if(n.Name == "jsonConverters")
				{
					XmlNodeList jsonConverters = n.SelectNodes("add");

					foreach(XmlNode j in jsonConverters)
					{
						XmlNode t = j.SelectSingleNode("@type");

						if(t == null)
							continue;

						Type type = Type.GetType(t.InnerText);

						if(type == null)
						{
							// throw new ArgumentException("Could not find type " + t.InnerText + ".");
                            continue;
						}

                        if (!typeof(IJavaScriptConverter).IsAssignableFrom(type))
                        {
                            // throw new ArgumentException("Type " + t.InnerText + " does not inherit from JavaScriptObjectConverter.");
                            continue;
                        }


						IJavaScriptConverter c = (IJavaScriptConverter)Activator.CreateInstance(type);
						c.Initialize();

						settings.JavaScriptConverters.Add(c);
					}
				}
				else if(n.Name == "encryption")
				{
					string cryptType = n.SelectSingleNode("@cryptType") != null ? n.SelectSingleNode("@cryptType").InnerText : null;
					string keyType = n.SelectSingleNode("@keyType") != null ? n.SelectSingleNode("@keyType").InnerText : null;

					if(cryptType == null || keyType == null)
						continue;
					

					AjaxEncryption enc = new AjaxEncryption(cryptType, keyType);
					
					if(!enc.Init())
						throw new Exception("Ajax.NET Professional encryption configuration failed.");

					settings.Encryption = enc;
				}
				else if(n.Name == "token")
				{
					settings.TokenEnabled = n.SelectSingleNode("@enabled") != null && n.SelectSingleNode("@enabled").InnerText == "true";
					settings.TokenSitePassword = n.SelectSingleNode("@sitePassword") != null ? n.SelectSingleNode("@sitePassword").InnerText : settings.TokenSitePassword;
				}
				else if (n.Name == "debug")
				{
					if (n.SelectSingleNode("@enabled") != null && n.SelectSingleNode("@enabled").InnerText == "true")
						settings.DebugEnabled = true;
				}
				else if (n.Name == "oldStyle")
				{
					if (n.SelectSingleNode("objectExtendPrototype") != null)
					{
						if (!settings.OldStyle.Contains("objectExtendPrototype"))
							settings.OldStyle.Add("objectExtendPrototype");
					}
				}
			}

			return settings;
		}

		#endregion
	}
}