added EncryptionHandler

scm-core/src/main/java/sonia/scm/BasicContextProvider.java

@@ -12,6 +12,8 @@ package sonia.scm;
 import sonia.scm.group.GroupManager;
 import sonia.scm.repository.BasicRepositoryManager;
 import sonia.scm.repository.RepositoryManager;
+import sonia.scm.security.EncryptionHandler;
+import sonia.scm.security.MessageDigestEncryptionHandler;
 import sonia.scm.util.ServiceUtil;
 import sonia.scm.util.Util;
 
@@ -79,6 +81,7 @@ public class BasicContextProvider implements SCMContextProvider
   {
     loadGroupManagers();
     loadRepositoryManager();
+    loadEncryptionHandler();
   }
 
   //~--- get methods ----------------------------------------------------------
@@ -95,6 +98,18 @@ public class BasicContextProvider implements SCMContextProvider
     return baseDirectory;
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public EncryptionHandler getEncryptionHandler()
+  {
+    return encryptionHandler;
+  }
+
   /**
    * Method description
    *
@@ -155,6 +170,20 @@ public class BasicContextProvider implements SCMContextProvider
     return directory;
   }
 
+  /**
+   * Method description
+   *
+   */
+  private void loadEncryptionHandler()
+  {
+    encryptionHandler = ServiceUtil.getService(EncryptionHandler.class);
+
+    if (encryptionHandler == null)
+    {
+      encryptionHandler = new MessageDigestEncryptionHandler();
+    }
+  }
+
   /**
    * Method description
    *
@@ -194,6 +223,9 @@ public class BasicContextProvider implements SCMContextProvider
   /** Field description */
   private File baseDirectory;
 
+  /** Field description */
+  private EncryptionHandler encryptionHandler;
+
   /** Field description */
   private Map<String, GroupManager> groupManagerMap;
 

scm-core/src/main/java/sonia/scm/SCMContextProvider.java

@@ -11,15 +11,13 @@ package sonia.scm;
 
 import sonia.scm.group.GroupManager;
 import sonia.scm.repository.RepositoryManager;
-import sonia.scm.repository.RepositoryType;
+import sonia.scm.security.EncryptionHandler;
 
 //~--- JDK imports ------------------------------------------------------------
 
 import java.io.Closeable;
 import java.io.File;
 
-import java.util.Collection;
-
 /**
  *
  * @author Sebastian Sdorra
@@ -43,6 +41,14 @@ public interface SCMContextProvider extends Closeable
    */
   public File getBaseDirectory();
 
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public EncryptionHandler getEncryptionHandler();
+
   /**
    * Method description
    *

scm-core/src/main/java/sonia/scm/security/EncryptionException.java

@@ -0,0 +1,64 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm.security;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class EncryptionException extends RuntimeException
+{
+
+  /** Field description */
+  private static final long serialVersionUID = -3733681356044140444L;
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   */
+  public EncryptionException()
+  {
+    super();
+  }
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param message
+   */
+  public EncryptionException(String message)
+  {
+    super(message);
+  }
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param cause
+   */
+  public EncryptionException(Throwable cause)
+  {
+    super(cause);
+  }
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param message
+   * @param cause
+   */
+  public EncryptionException(String message, Throwable cause)
+  {
+    super(message, cause);
+  }
+}

scm-core/src/main/java/sonia/scm/security/EncryptionHandler.java

@@ -0,0 +1,26 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm.security;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public interface EncryptionHandler
+{
+
+  /**
+   * Method description
+   *
+   *
+   * @param value
+   *
+   * @return
+   */
+  public String encrypt(String value);
+}

scm-core/src/main/java/sonia/scm/security/MessageDigestEncryptionHandler.java

@@ -0,0 +1,133 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm.security;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import sonia.scm.util.AssertUtil;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class MessageDigestEncryptionHandler implements EncryptionHandler
+{
+
+  /** Field description */
+  public static final String DEFAULT_DIGEST = "SHA-1";
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   */
+  public MessageDigestEncryptionHandler()
+  {
+    this.digest = DEFAULT_DIGEST;
+  }
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param digest
+   */
+  public MessageDigestEncryptionHandler(String digest)
+  {
+    this.digest = digest;
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param value
+   *
+   * @return
+   */
+  @Override
+  public String encrypt(String value)
+  {
+    String result = null;
+
+    try
+    {
+      AssertUtil.assertIsNotEmpty(value);
+
+      MessageDigest messageDigest = MessageDigest.getInstance(digest);
+
+      result = encrypt(messageDigest, value);
+    }
+    catch (NoSuchAlgorithmException ex)
+    {
+      throw new EncryptionException(ex);
+    }
+
+    return result;
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public String getDigest()
+  {
+    return digest;
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param messageDigest
+   * @param value
+   *
+   * @return
+   */
+  private String encrypt(MessageDigest messageDigest, String value)
+  {
+    messageDigest.reset();
+    messageDigest.update(value.getBytes());
+
+    byte hashCode[] = messageDigest.digest();
+    StringBuilder hashString = new StringBuilder();
+
+    for (int i = 0; i < hashCode.length; i++)
+    {
+      int x = hashCode[i] & 0xff;
+
+      if (x < 16)
+      {
+        hashString.append('0');
+      }
+
+      hashString.append(Integer.toString(x, 16));
+    }
+
+    return hashString.toString();
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private String digest;
+}