write mercurial hook module on first request

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/api/rest/resources/HgHookCallback.java

@@ -0,0 +1,80 @@
+/**
+ * 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.api.rest.resources;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.core.Response;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@Path("hook/hg/{repository}/{type}")
+public class HgHookCallback
+{
+
+  /** the logger for HgHookCallback */
+  private static final Logger logger =
+    LoggerFactory.getLogger(HgHookCallback.class);
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param repositoryName
+   * @param type
+   *
+   * @return
+   */
+  @GET
+  public Response hookCallback(@PathParam("repository") String repositoryName,
+                               @PathParam("type") String type)
+  {
+    logger.warn("retrive hg hook {}", type);
+
+    return Response.ok().build();
+  }
+}

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/web/HgHookScriptFilter.java

@@ -0,0 +1,206 @@
+/**
+ * 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.SCMContextProvider;
+import sonia.scm.io.RegexResourceProcessor;
+import sonia.scm.io.ResourceProcessor;
+import sonia.scm.repository.HgConfig;
+import sonia.scm.repository.HgRepositoryHandler;
+import sonia.scm.util.IOUtil;
+import sonia.scm.util.Util;
+import sonia.scm.web.filter.HttpFilter;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@Singleton
+public class HgHookScriptFilter extends HttpFilter
+{
+
+  /** Field description */
+  public static final String SCRIPT_TEMPLATE = "/sonia/scm/hghook.py";
+
+  /** the logger for HgHookScriptFilter */
+  private static final Logger logger =
+    LoggerFactory.getLogger(HgHookScriptFilter.class);
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param context
+   * @param handler
+   */
+  @Inject
+  public HgHookScriptFilter(SCMContextProvider context,
+                            HgRepositoryHandler handler)
+  {
+    this.context = context;
+    this.handler = handler;
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param request
+   * @param response
+   * @param chain
+   *
+   * @throws IOException
+   * @throws ServletException
+   */
+  @Override
+  protected void doFilter(HttpServletRequest request,
+                          HttpServletResponse response, FilterChain chain)
+          throws IOException, ServletException
+  {
+    if (!written)
+    {
+      synchronized (HgHookScriptFilter.class)
+      {
+        if (!written)
+        {
+          writeHookScript(request);
+          written = true;
+        }
+      }
+    }
+
+    chain.doFilter(request, response);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param request
+   *
+   * @throws IOException
+   */
+  private void writeHookScript(HttpServletRequest request) throws IOException
+  {
+    StringBuilder url = new StringBuilder(request.getScheme());
+
+    url.append("://localhost:").append(request.getServerPort());
+    url.append(request.getContextPath()).append("/api/rest/hook/hg/");
+
+    File cgiDirectory = new File(context.getBaseDirectory(), "cgi-bin");
+
+    IOUtil.mkdirs(cgiDirectory);
+
+    File hgHookScript = new File(cgiDirectory, "hg-hook.py");
+
+    if (logger.isDebugEnabled())
+    {
+      logger.debug("write hg hook script to '{}'", hgHookScript);
+    }
+
+    writeScript(hgHookScript, url.toString());
+  }
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param script
+   * @param url
+   *
+   * @throws IOException
+   */
+  private void writeScript(File script, String url) throws IOException
+  {
+    InputStream input = null;
+    OutputStream output = null;
+
+    try
+    {
+      input = HgWebConfigWriter.class.getResourceAsStream(SCRIPT_TEMPLATE);
+      output = new FileOutputStream(script);
+
+      HgConfig config = handler.getConfig();
+      ResourceProcessor rp = new RegexResourceProcessor();
+
+      rp.addVariable("python", config.getPythonBinary());
+      rp.addVariable("path", Util.nonNull(config.getPythonPath()));
+      rp.addVariable("url", url);
+      rp.process(input, output);
+      script.setExecutable(true);
+    }
+    finally
+    {
+      IOUtil.close(input);
+      IOUtil.close(output);
+    }
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private SCMContextProvider context;
+
+  /** Field description */
+  private HgRepositoryHandler handler;
+
+  /** Field description */
+  private volatile boolean written = false;
+}

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/web/HgServletModule.java

@@ -36,8 +36,8 @@ package sonia.scm.web;
 //~--- non-JDK imports --------------------------------------------------------
 
 import com.google.inject.servlet.ServletModule;
-import sonia.scm.plugin.ext.Extension;
 
+import sonia.scm.plugin.ext.Extension;
 import sonia.scm.web.filter.BasicAuthenticationFilter;
 
 /**
@@ -48,6 +48,9 @@ import sonia.scm.web.filter.BasicAuthenticationFilter;
 public class HgServletModule extends ServletModule
 {
 
+  /** Field description */
+  public static final String MAPPING_ALL = "/*";
+
   /** Field description */
   public static final String MAPPING_HG = "/hg/*";
 
@@ -60,6 +63,11 @@ public class HgServletModule extends ServletModule
   @Override
   protected void configureServlets()
   {
+
+    // write hook script
+    filter(MAPPING_ALL).through(HgHookScriptFilter.class);
+
+    // register hg cgi servlet
     filter(MAPPING_HG).through(BasicAuthenticationFilter.class);
     filter(MAPPING_HG).through(HgPermissionFilter.class);
     serve(MAPPING_HG).with(HgCGIServlet.class);

scm-plugins/scm-hg-plugin/src/main/resources/sonia/scm/hghook.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env ${python}
+
+import os, sys, urllib
+
+pythonPath = "${path}"
+
+if len(pythonPath) > 0:
+  pathParts = pythonPath.split(os.pathsep)
+  for i in range(len(pathParts)):
+    sys.path.insert(i, pathParts[i])
+
+baseUrl = "${url}"
+
+def scmhook(ui, repo, hooktype, node=None, source=None, **kwargs):
+  url = baseUrl + os.path.basename(repo.root) + "/" + hooktype
+  conn = urllib.urlopen(url);
+  # todo validate (if conn.code == 200:)