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use a servlet instead of a restful resource

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Sebastian Sdorra
2011-08-07 16:35:51 +02:00
parent 8e4ff52207
commit b93230c8a1
3 changed files with 74 additions and 27 deletions
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201
scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/web/HgHookCallbackServlet.java Normal file
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/**
* Copyright (c) 2010, Sebastian Sdorra
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of SCM-Manager; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* http://bitbucket.org/sdorra/scm-manager
*
*/
package sonia.scm.web;
//~--- non-JDK imports --------------------------------------------------------
import com.google.inject.Inject;
import com.google.inject.Singleton;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import sonia.scm.repository.HgHookManager;
import sonia.scm.repository.HgRepositoryHandler;
import sonia.scm.repository.HgRepositoryHookEvent;
import sonia.scm.repository.RepositoryManager;
import sonia.scm.repository.RepositoryNotFoundException;
import sonia.scm.util.HttpUtil;
//~--- JDK imports ------------------------------------------------------------
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
*
* @author Sebastian Sdorra
*/
@Singleton
public class HgHookCallbackServlet extends HttpServlet
{
/** Field description */
private static final String PARAM_CHALLENGE = "challenge";
/** Field description */
private static final String PARAM_NODE = "node";
/** Field description */
private static final Pattern REGEX_URL =
Pattern.compile("^/hook/hg/([^/]+)/([^/]+)$");
/** the logger for HgHookCallbackServlet */
private static final Logger logger =
LoggerFactory.getLogger(HgHookCallbackServlet.class);
//~--- constructors ---------------------------------------------------------
/**
* Constructs ...
*
*
* @param repositoryManager
* @param handler
* @param hookManager
*/
@Inject
public HgHookCallbackServlet(RepositoryManager repositoryManager,
HgRepositoryHandler handler,
HgHookManager hookManager)
{
this.repositoryManager = repositoryManager;
this.handler = handler;
this.hookManager = hookManager;
}
//~--- methods --------------------------------------------------------------
/**
* Method description
*
*
* @param response
* @param repositoryName
* @param type
* @param challenge
* @param node
*
* @throws IOException
*/
public void hookCallback(HttpServletResponse response, String repositoryName,
String type, String challenge, String node)
throws IOException
{
if (hookManager.isAcceptAble(challenge))
{
try
{
repositoryManager.fireHookEvent(HgRepositoryHandler.TYPE_NAME,
repositoryName,
new HgRepositoryHookEvent(handler,
repositoryName, node));
}
catch (RepositoryNotFoundException ex)
{
if (logger.isErrorEnabled())
{
logger.error("could not find repository {}", repositoryName);
if (logger.isTraceEnabled())
{
logger.trace("repository not found", ex);
}
}
response.sendError(HttpServletResponse.SC_NOT_FOUND);
}
}
else
{
if (logger.isWarnEnabled())
{
logger.warn("hg hook challenge is not accept able");
}
response.sendError(HttpServletResponse.SC_BAD_REQUEST);
}
}
/**
* Method description
*
*
* @param request
* @param response
*
* @throws IOException
* @throws ServletException
*/
@Override
protected void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
{
String strippedURI = HttpUtil.getStrippedURI(request);
Matcher m = REGEX_URL.matcher(strippedURI);
if (m.matches())
{
String repositoryId = m.group(1);
String type = m.group(2);
String challenge = request.getParameter(PARAM_CHALLENGE);
String node = request.getParameter(PARAM_NODE);
hookCallback(response, repositoryId, type, challenge, node);
}
else
{
response.sendError(HttpServletResponse.SC_BAD_REQUEST);
}
}
//~--- fields ---------------------------------------------------------------
/** Field description */
private HgRepositoryHandler handler;
/** Field description */
private HgHookManager hookManager;
/** Field description */
private RepositoryManager repositoryManager;
}