diff --git a/scm-core/src/main/java/sonia/scm/repository/RepositoryRequestListener.java b/scm-core/src/main/java/sonia/scm/repository/RepositoryRequestListener.java
new file mode 100644
index 0000000000..5a911718db
--- /dev/null
+++ b/scm-core/src/main/java/sonia/scm/repository/RepositoryRequestListener.java
@@ -0,0 +1,75 @@
+/**
+ * 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.repository;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import sonia.scm.plugin.ExtensionPoint;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.IOException;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * Listener before a repository request is executed. Repository request are
+ * request to a repository from a client like git, mercurial or svn.
+ *
+ * @author Sebastian Sdorra
+ * @since 1.10
+ */
+@ExtensionPoint
+public interface RepositoryRequestListener
+{
+
+  /**
+   * Handle repository requests. Return false to abort the request.
+   *
+   *
+   * @param request the servletrequest
+   * @param response the servletresponse
+   * @param repository the requested repository
+   *
+   *
+   * @return false to abort the request
+   * @throws IOException
+   * @throws RepositoryException
+   */
+  public boolean handleRequest(HttpServletRequest request,
+                               HttpServletResponse response,
+                               Repository repository)
+          throws IOException, RepositoryException;
+}
diff --git a/scm-core/src/main/java/sonia/scm/repository/RepositoryRequestListenerUtil.java b/scm-core/src/main/java/sonia/scm/repository/RepositoryRequestListenerUtil.java
new file mode 100644
index 0000000000..1cc654378b
--- /dev/null
+++ b/scm-core/src/main/java/sonia/scm/repository/RepositoryRequestListenerUtil.java
@@ -0,0 +1,141 @@
+/**
+ * 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.repository;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import sonia.scm.util.Util;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.util.Set;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ * @since 1.10
+ */
+@Singleton
+public class RepositoryRequestListenerUtil
+{
+
+  /** the logger for RepositoryRequestListenerUtil */
+  private static final Logger logger =
+    LoggerFactory.getLogger(RepositoryRequestListenerUtil.class);
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param listenerSet
+   */
+  @Inject
+  public RepositoryRequestListenerUtil(
+          Set<RepositoryRequestListener> listenerSet)
+  {
+    this.listenerSet = listenerSet;
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param request
+   * @param response
+   * @param repository
+   *
+   * @return
+   */
+  public boolean callListeners(HttpServletRequest request,
+                               HttpServletResponse response,
+                               Repository repository)
+  {
+    boolean process = true;
+
+    if (Util.isNotEmpty(listenerSet))
+    {
+      try
+      {
+        for (RepositoryRequestListener listener : listenerSet)
+        {
+          if (logger.isTraceEnabled())
+          {
+            logger.trace("call repository request listener {}",
+                         listener.getClass());
+          }
+
+          if (!listener.handleRequest(request, response, repository))
+          {
+            process = false;
+
+            if (logger.isDebugEnabled())
+            {
+              logger.debug("repository request listener {} aborted request",
+                           listener.getClass());
+            }
+          }
+        }
+      }
+      catch (Exception ex)
+      {
+        process = false;
+        logger.error("repository request listener failed", ex);
+      }
+    }
+    else if (logger.isTraceEnabled())
+    {
+      logger.trace("no repository request listener defined");
+    }
+
+    return process;
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private Set<RepositoryRequestListener> listenerSet;
+}