start implementation of a new security system to allow global permissions for repositories

scm-webapp/src/main/java/sonia/scm/security/DefaultSecuritySystem.java

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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.security;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+
+import org.apache.shiro.SecurityUtils;
+import org.apache.shiro.subject.PrincipalCollection;
+
+import sonia.scm.event.ScmEventBus;
+import sonia.scm.store.Store;
+import sonia.scm.store.StoreFactory;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ * @since 1.31
+ */
+@Singleton
+public class DefaultSecuritySystem implements SecuritySystem
+{
+
+  /** Field description */
+  private static final String NAME = "security";
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param storeFactory
+   */
+  @Inject
+  public DefaultSecuritySystem(StoreFactory storeFactory)
+  {
+    store = storeFactory.getStore(SecurityConfiguration.class, NAME);
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public SecurityConfiguration getConfiguration()
+  {
+    SecurityConfiguration configuration = store.get();
+
+    if (configuration == null)
+    {
+      configuration = new SecurityConfiguration();
+    }
+
+    return configuration;
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public PrincipalCollection getSystemAccount()
+  {
+    throw new UnsupportedOperationException("Not supported yet.");    // To change body of generated methods, choose Tools | Templates.
+  }
+
+  //~--- set methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param newConfiguration
+   */
+  @Override
+  public void setConfiguration(SecurityConfiguration newConfiguration)
+  {
+    SecurityUtils.getSubject().checkRole(Role.ADMIN);
+
+    SecurityConfiguration oldConfiguration = store.get();
+
+    store.set(newConfiguration);
+    //J-
+    ScmEventBus.getInstance().post(
+      new SecurityConfigurationChangedEvent(oldConfiguration, newConfiguration)
+    );
+    //J+
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private Store<SecurityConfiguration> store;
+}