org.apache.safe.servlet.SafeServlet.java Source code

Introduction

Here is the source code for org.apache.safe.servlet.SafeServlet.java

Source

/**
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License. See accompanying LICENSE file.
 */
package org.apache.safe.servlet;

import java.io.IOException;
import java.util.Arrays;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.safe.ErrorCode;
import org.apache.safe.service.SafeException;
import org.apache.safe.service.SafeService;
import org.apache.safe.util.XmlUtils;
import org.jdom.Attribute;
import org.jdom.Element;

public class SafeServlet extends BaseServlet {

    private static final SafeService SAFE_INSTANCE = new SafeService();

    private static final Log LOG = LogFactory.getLog(SafeServlet.class);

    private static boolean INITED = false;

    static {
        try {
            SAFE_INSTANCE.init();
            INITED = true;
        } catch (IOException e) {

        }
    }

    /**
     * Return information about SLA Events.
     */
    @SuppressWarnings("unchecked")
    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        try {
            if (!INITED) {
                throw new SafeServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0200);
            }
            String action = request.getParameter(Constants.ACTION_PARAM);
            if (action.equals(Constants.SAFE_GET_KEY)) {
                String keyId = request.getParameter(Constants.SAFE_KEY_ID);

                ParamChecker.notEmpty(keyId, Constants.SAFE_KEY_ID);

                byte[] key = SAFE_INSTANCE.getKey(getUser(request), keyId);
                Element eKey = new Element("key");
                eKey.setAttribute(new Attribute("id", keyId));
                String strKey = Base64.encodeBase64String(key);
                eKey.setText(strKey);
                response.setStatus(HttpServletResponse.SC_OK);
                response.getWriter().write(XmlUtils.prettyPrint(eKey) + "\n");

            } else if (action.equals(Constants.SAFE_GET_KEYS)) {
                String keyNames = request.getParameter(Constants.SAFE_KEY_ID);
                ParamChecker.notEmpty(keyNames, Constants.SAFE_KEY_ID);
                //get the list of key names
                String[] keyIds = keyNames.split("\\s*,\\s*");
                Element eKeys = new Element("keys");
                for (String keyId : keyIds) {
                    byte[] key = SAFE_INSTANCE.getKey(getUser(request), keyId);
                    Element eKey = new Element("key");
                    eKey.setAttribute(new Attribute("id", keyId));
                    String strKey = Base64.encodeBase64String(key);
                    eKey.setText(strKey);
                    eKeys.addContent(eKey);
                }
                response.getWriter().write(XmlUtils.prettyPrint(eKeys) + "\n");
                response.setStatus(HttpServletResponse.SC_OK);
            }
        } catch (SafeException e) {
            throw new SafeServletException(HttpServletResponse.SC_UNAUTHORIZED, e.getErrorCode(), e.getMessage());
        } catch (RuntimeException re) {
            re.printStackTrace();
            LOG.error("Runtime error ", re);
            throw new SafeServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0307, re.getMessage());
        }
    }

}