edu.uiuc.ncsa.myproxy.oa4mp.server.servlet.ErrorServlet Maven / Gradle / Ivy
package edu.uiuc.ncsa.myproxy.oa4mp.server.servlet;
import edu.uiuc.ncsa.security.core.exceptions.UnknownClientException;
import edu.uiuc.ncsa.security.core.util.BasicIdentifier;
import edu.uiuc.ncsa.oa4mp.delegation.server.ServiceTransaction;
import edu.uiuc.ncsa.oa4mp.delegation.server.request.IssuerResponse;
import edu.uiuc.ncsa.oa4mp.delegation.common.storage.clients.Client;
import edu.uiuc.ncsa.security.servlet.JSPUtil;
import org.apache.commons.codec.binary.Base64;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.net.URLDecoder;
/**
* This servlet handles error redirects. If an error (such as a 404, 500 or anything else) occurs,
* OAuth will intecept the response and throw an exception -- losing any other information.
* Therefore, there must be a redirect and clients must be prepared to deal with these.
* Generally there are a few error type pages
* Created by Jeff Gaynor
* on 9/4/12 at 6:03 PM
*/
public class ErrorServlet extends MyProxyDelegationServlet {
@Override
public ServiceTransaction verifyAndGet(IssuerResponse iResponse) throws IOException {
return null;
}
public static final String MESSAGE = "message";
public static final String IDENTIFIER = "identifier";
public static final String STACK_TRACE = "stackTrace";
public static final String CAUSE = "cause";
@Override
protected void doIt(HttpServletRequest request, HttpServletResponse response) throws Throwable {
String cause = request.getParameter(CAUSE);
String identifier = request.getParameter(IDENTIFIER);
request.setAttribute(CAUSE, cause);
request.setAttribute(IDENTIFIER, identifier);
request.setAttribute(MESSAGE, URLDecoder.decode(request.getParameter(MESSAGE), "UTF-8"));
String stackTrace = request.getParameter(STACK_TRACE);
if (stackTrace == null || stackTrace.length() == 0) {
stackTrace = "(none)";
} else {
try {
stackTrace = new String(Base64.decodeBase64(stackTrace));
} catch (Throwable x) {
info("Could not decode stack trace for cause " + x.getClass().getName() + " msg=\"" + x.getMessage() + "\", trace:" + stackTrace);
stackTrace = "(none)";
}
}
request.setAttribute(STACK_TRACE, stackTrace);
if (cause.equals(UnknownClientException.class.getSimpleName())) {
JSPUtil.fwd(request, response, "/noClientErrorPage.jsp");
return;
}
Client client = getClient(BasicIdentifier.newID(identifier));
request.setAttribute("client", client);
JSPUtil.fwd(request, response, "/errorPage2.jsp");
}
}