package tinystruct.examples;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

import org.tinystruct.AbstractApplication;

import org.tinystruct.ApplicationException;

import org.tinystruct.dom.Element;

import org.tinystruct.handle.Reforward;

public class error extends AbstractApplication {

private HttpServletRequest request;

private HttpServletResponse response;

private Reforward reforward;

@Override

public void init() {

// TODO Auto-generated method stub

this.setAction("error", "process");

this.setAction("info", "info");

}

@Override

public String version() {

// TODO Auto-generated method stub

return null;

}

public Object process()

throws ApplicationException {

this.request = (HttpServletRequest) this.context.getAttribute("HTTP_REQUEST");

this.response = (HttpServletResponse) this.context.getAttribute("HTTP_RESPONSE");

this.reforward=new Reforward(this.request,this.response);

this.setVariable("from", this.reforward.getFromURL());

HttpSession session=this.request.getSession();

if(session.getAttribute("error")!=null)

{

ApplicationException exception=(ApplicationException)session.getAttribute("error");

String message=exception.getRootCause().getMessage();

if(message!=null) this.setVariable("exception.message", message);

else this.setVariable("exception.message", "Unknown error");

this.setVariable("exception.details", this.getDetail(exception).toString());

return this.getVariable("exception.message").getValue().toString()+this.getVariable("exception.details").getValue();

}

else

{

this.reforward.forward();

}

return "This request is forbidden!";

}

private Element getDetail(ApplicationException exception)

{

Element errors=new Element("ul");

int i=0;

Throwable ex=exception.getRootCause();

StackTraceElement[] trace=ex.getStackTrace();

while(i<trace.length)

{

Element element=new Element("li");

element.setData(trace[i++].toString());

errors.addElement(element);

}

return errors;

}

public StringBuffer info()

{

StringBuffer buffer=new StringBuffer();

buffer.append("Protocol: " + this.request.getProtocol()+"\r\n");

buffer.append("Scheme: " + this.request.getScheme()+"\r\n");

buffer.append("Server Name: " + this.request.getServerName()+"\r\n");

buffer.append("Server Port: " + this.request.getServerPort()+"\r\n");

buffer.append("Protocol: " + this.request.getProtocol()+"\r\n");

// buffer.append("Server Info: " + getServletConfig().getServletContext().getServerInfo()+"\r\n");

buffer.append("Remote Addr: " + this.request.getRemoteAddr()+"\r\n");

buffer.append("Remote Host: " + this.request.getRemoteHost()+"\r\n");

buffer.append("Character Encoding: " + this.request.getCharacterEncoding()+"\r\n");

buffer.append("Content Length: " + this.request.getContentLength()+"\r\n");

buffer.append("Content Type: "+ this.request.getContentType()+"\r\n");

buffer.append("Auth Type: " + this.request.getAuthType()+"\r\n");

buffer.append("HTTP Method: " + this.request.getMethod()+"\r\n");

buffer.append("Path Info: " + this.request.getPathInfo()+"\r\n");

buffer.append("Path Trans: " + this.request.getPathTranslated()+"\r\n");

buffer.append("Query String: " + this.request.getQueryString()+"\r\n");

buffer.append("Remote User: " + this.request.getRemoteUser()+"\r\n");

buffer.append("Session Id: " + this.request.getRequestedSessionId()+"\r\n");

buffer.append("Request URI: " + this.request.getRequestURI()+"\r\n");

buffer.append("Servlet Path: " + this.request.getServletPath()+"\r\n");

buffer.append("Accept: " + this.request.getHeader("Accept")+"\r\n");

buffer.append("Host: " + this.request.getHeader("Host")+"\r\n");

buffer.append("Referer : " + this.request.getHeader("Referer")+"\r\n");

buffer.append("Accept-Language : " + this.request.getHeader("Accept-Language")+"\r\n");

buffer.append("Accept-Encoding : " + this.request.getHeader("Accept-Encoding")+"\r\n");

buffer.append("User-Agent : " + this.request.getHeader("User-Agent")+"\r\n");

buffer.append("Connection : " + this.request.getHeader("Connection")+"\r\n");

buffer.append("Cookie : " + this.request.getHeader("Cookie")+"\r\n");

return buffer;

}

}