void httpApp_PostAcquireRequestState(object sender, EventArgs e)
{
HttpApplication httpApp = (HttpApplication)sender;
//remove extension and split the url
string url = httpApp.Context.Request.RawUrl;
string urlStart = IOHelper.ResolveUrl(SystemDirectories.Base).TrimEnd('/').ToLower() + "/";
if (url.ToLower().StartsWith(urlStart))
{
MyHttpHandler resourceHttpHandler = HttpContext.Current.Handler as MyHttpHandler;
if (resourceHttpHandler != null)
{
// set the original handler back
HttpContext.Current.Handler = resourceHttpHandler.OriginalHandler;
}
string basedir = "/" + SystemDirectories.Base.TrimStart('~').Trim('/') + "/";
int indexOfBase = url.ToLower().IndexOf(basedir);
url = url.Substring(indexOfBase);
if (url.ToLower().Contains(".aspx"))
url = url.Substring(0, url.IndexOf(".aspx"));
if (url.ToLower().Contains("?"))
url = url.Substring(0, url.IndexOf("?"));
object[] urlArray = url.Split('/');
//There has to be minimum 4 parts in the url for this to work... /base/library/method/[parameter].aspx
if (urlArray.Length >= 4)
{
string extensionAlias = urlArray[2].ToString();
string methodName = urlArray[3].ToString();
httpApp.Response.ContentType = "text/xml";
restExtension myExtension = new restExtension(extensionAlias, methodName);
if (myExtension.isAllowed)
{
TrySetCulture();
string response = invokeMethod(myExtension, urlArray);
// since return value is arbitrary (set by implementor), check length before checking for error
if (response.Length >= 7)
{
if (response.Substring(0, 7) == "<error>")
{
httpApp.Response.StatusCode = 500;
httpApp.Response.StatusDescription = "Internal Server Error";
}
}
httpApp.Response.Output.Write(response);
}
else
{
httpApp.Response.StatusCode = 500;
httpApp.Response.StatusDescription = "Internal Server Error";
//Very static error msg...
httpApp.Response.Output.Write("<error>Extension not found or permission denied</error>");
}
//end the resposne
httpApp.Response.End();
}
}
}
void httpApp_PostAcquireRequestState(object sender, EventArgs e)
{
HttpApplication httpApp = (HttpApplication)sender;
//remove extension and split the url
string url = httpApp.Context.Request.RawUrl;
string urlStart = IO.IOHelper.ResolveUrl(IO.SystemDirectories.Base).TrimEnd('/').ToLower() + "/";
if (url.ToLower().StartsWith(urlStart))
{
MyHttpHandler resourceHttpHandler = HttpContext.Current.Handler as MyHttpHandler;
if (resourceHttpHandler != null)
{
// set the original handler back
HttpContext.Current.Handler = resourceHttpHandler.OriginalHandler;
}
string basedir = "/" + IO.SystemDirectories.Base.TrimStart('~').Trim('/') + "/";
int indexOfBase = url.ToLower().IndexOf(basedir);
url = url.Substring(indexOfBase);
if (url.ToLower().Contains(".aspx"))
{
url = url.Substring(0, url.IndexOf(".aspx"));
}
object[] urlArray = url.Split('/');
//There has to be minimum 4 parts in the url for this to work... /base/library/method/[parameter].aspx
if (urlArray.Length >= 4)
{
string extensionAlias = urlArray[2].ToString();
string methodName = urlArray[3].ToString();
httpApp.Response.ContentType = "text/xml";
restExtension myExtension = new restExtension(extensionAlias, methodName);
if (myExtension.isAllowed)
{
string response = invokeMethod(myExtension, urlArray);
// since return value is arbitrary (set by implementor), check length before checking for error
if (response.Length >= 7)
{
if (response.Substring(0, 7) == "<error>")
{
httpApp.Response.StatusCode = 500;
httpApp.Response.StatusDescription = "Internal Server Error";
}
}
httpApp.Response.Output.Write(response);
}
else
{
httpApp.Response.StatusCode = 500;
httpApp.Response.StatusDescription = "Internal Server Error";
//Very static error msg...
httpApp.Response.Output.Write("<error>Extension not found or permission denied</error>");
}
//end the resposne
httpApp.Response.End();
}
}
}
private string invokeMethod(restExtension myExtension, object[] paras)
{
try
{
//So method is either not found or not valid... this should probably be moved...
if (!myExtension.method.IsPublic || !myExtension.method.IsStatic)
return "<error>Method has to be public and static</error>";
else //And if it is lets continue trying to invoke it...
{
//lets check if we have parameters enough in the url..
if (myExtension.method.GetParameters().Length > (paras.Length - 4)) //Too few
return "<error>Not Enough parameters in url</error>";
else
{
//We have enough parameters... lets invoke..
//Create an instance of the type we need to invoke the method from.
Object obj = Activator.CreateInstance(myExtension.type);
Object response;
//umbracoBase.baseBinder bBinder = new baseBinder();
if (myExtension.method.GetParameters().Length == 0)
{
//response = myMethod.method.Invoke(obj, BindingFlags.Public | BindingFlags.Instance, bBinder, null, System.Globalization.CultureInfo.CurrentCulture);
response = myExtension.method.Invoke(obj, null); //Invoke with null as parameters as there are none
}
else
{
//We only need the parts of the url above the number 4 so we'll
//recast those to objects and add them to the object[]
//Getting the right lenght.. 4 is the magic number dum di dum..
object[] methodParams = new object[(paras.Length - 4)];
int i = 0;
foreach (ParameterInfo pInfo in myExtension.method.GetParameters())
{
Type myType = Type.GetType(pInfo.ParameterType.ToString());
methodParams[(i)] = Convert.ChangeType(paras[i + 4], myType);
i++;
}
//Invoke with methodParams
//response = myMethod.method.Invoke(obj, BindingFlags.Public | BindingFlags.Instance, bBinder, methodParams, System.Globalization.CultureInfo.CurrentCulture);
response = myExtension.method.Invoke(obj, methodParams);
}
/*TODO - SOMETHING ALITTLE BETTER THEN ONLY CHECK FOR XPATHNODEITERATOR OR ELSE do ToString() */
if (response != null)
{
switch (myExtension.method.ReturnType.ToString())
{
case "System.Xml.XPath.XPathNodeIterator":
return ((System.Xml.XPath.XPathNodeIterator)response).Current.OuterXml;
case "System.Xml.Linq.XDocument":
return response.ToString();
case "System.Xml.XmlDocument":
XmlDocument xmlDoc = (XmlDocument)response;
StringWriter sw = new StringWriter();
XmlTextWriter xw = new XmlTextWriter(sw);
xmlDoc.WriteTo(xw);
return sw.ToString();
default:
string strResponse = ((string)response.ToString());
if (myExtension.returnXML)
{
//do a quick "is this html?" check... if it is add CDATA...
if (strResponse.Contains("<") || strResponse.Contains(">"))
strResponse = "<![CDATA[" + strResponse + "]]>";
return "<value>" + strResponse + "</value>";
}
else
{
HttpContext.Current.Response.ContentType = "text/html";
return strResponse;
}
}
}
else
{
if (myExtension.returnXML)
return "<error>Null value returned</error>";
else
return string.Empty;
}
}
}
}
catch (Exception ex)
{
//Overall exception handling...
return "<error><![CDATA[MESSAGE:\n" + ex.Message + "\n\nSTACKTRACE:\n" + ex.StackTrace + "\n\nINNEREXCEPTION:\n" + ex.InnerException + "]]></error>";
}
}
private string invokeMethod(restExtension myExtension, object[] paras)
{
try
{
//So method is either not found or not valid... this should probably be moved...
if (!myExtension.method.IsPublic || !myExtension.method.IsStatic)
{
return("<error>Method has to be public and static</error>");
}
else //And if it is lets continue trying to invoke it...
{
//lets check if we have parameters enough in the url..
if (myExtension.method.GetParameters().Length > (paras.Length - 4)) //Too few
{
return("<error>Not Enough parameters in url</error>");
}
else
{
//We have enough parameters... lets invoke..
//Create an instance of the type we need to invoke the method from.
Object obj = Activator.CreateInstance(myExtension.type);
Object response;
//umbracoBase.baseBinder bBinder = new baseBinder();
if (myExtension.method.GetParameters().Length == 0)
{
//response = myMethod.method.Invoke(obj, BindingFlags.Public | BindingFlags.Instance, bBinder, null, System.Globalization.CultureInfo.CurrentCulture);
response = myExtension.method.Invoke(obj, null); //Invoke with null as parameters as there are none
}
else
{
//We only need the parts of the url above the number 4 so we'll
//recast those to objects and add them to the object[]
//Getting the right lenght.. 4 is the magic number dum di dum..
object[] methodParams = new object[(paras.Length - 4)];
int i = 0;
foreach (ParameterInfo pInfo in myExtension.method.GetParameters())
{
Type myType = Type.GetType(pInfo.ParameterType.ToString());
methodParams[(i)] = Convert.ChangeType(paras[i + 4], myType);
i++;
}
//Invoke with methodParams
//response = myMethod.method.Invoke(obj, BindingFlags.Public | BindingFlags.Instance, bBinder, methodParams, System.Globalization.CultureInfo.CurrentCulture);
response = myExtension.method.Invoke(obj, methodParams);
}
/*TODO - SOMETHING ALITTLE BETTER THEN ONLY CHECK FOR XPATHNODEITERATOR OR ELSE do ToString() */
if (response != null)
{
switch (myExtension.method.ReturnType.ToString())
{
case "System.Xml.XPath.XPathNodeIterator":
return(((System.Xml.XPath.XPathNodeIterator)response).Current.OuterXml);
case "System.Xml.Linq.XDocument":
return(response.ToString());
case "System.Xml.XmlDocument":
XmlDocument xmlDoc = (XmlDocument)response;
StringWriter sw = new StringWriter();
XmlTextWriter xw = new XmlTextWriter(sw);
xmlDoc.WriteTo(xw);
return(sw.ToString());
default:
string strResponse = ((string)response.ToString());
if (myExtension.returnXML)
{
//do a quick "is this html?" check... if it is add CDATA...
if (strResponse.Contains("<") || strResponse.Contains(">"))
{
strResponse = "<![CDATA[" + strResponse + "]]>";
}
return("<value>" + strResponse + "</value>");
}
else
{
HttpContext.Current.Response.ContentType = "text/html";
return(strResponse);
}
}
}
else
{
if (myExtension.returnXML)
{
return("<error>Null value returned</error>");
}
else
{
return(string.Empty);
}
}
}
}
}
catch (Exception ex)
{
//Overall exception handling...
return("<error><![CDATA[MESSAGE:\n" + ex.Message + "\n\nSTACKTRACE:\n" + ex.StackTrace + "\n\nINNEREXCEPTION:\n" + ex.InnerException + "]]></error>");
}
}
