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Posted to commits@mina.apache.org by gn...@apache.org on 2011/07/01 09:37:14 UTC

svn commit: r1141851 - /mina/sshd/trunk/sshd-core/src/main/java/org/apache/sshd/common/keyprovider/ResourceKeyPairProvider.java

Author: gnodet
Date: Fri Jul  1 07:37:14 2011
New Revision: 1141851

URL: http://svn.apache.org/viewvc?rev=1141851&view=rev
Log:
[SSH-113] KeyPair provider from classpath resource
Patch provided by Cédric Chantepie.

Added:
    mina/sshd/trunk/sshd-core/src/main/java/org/apache/sshd/common/keyprovider/ResourceKeyPairProvider.java

Added: mina/sshd/trunk/sshd-core/src/main/java/org/apache/sshd/common/keyprovider/ResourceKeyPairProvider.java
URL: http://svn.apache.org/viewvc/mina/sshd/trunk/sshd-core/src/main/java/org/apache/sshd/common/keyprovider/ResourceKeyPairProvider.java?rev=1141851&view=auto
==============================================================================
--- mina/sshd/trunk/sshd-core/src/main/java/org/apache/sshd/common/keyprovider/ResourceKeyPairProvider.java (added)
+++ mina/sshd/trunk/sshd-core/src/main/java/org/apache/sshd/common/keyprovider/ResourceKeyPairProvider.java Fri Jul  1 07:37:14 2011
@@ -0,0 +1,174 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sshd.common.keyprovider;
+
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.security.KeyPair;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.sshd.common.util.IoUtils;
+import org.apache.sshd.common.util.SecurityUtils;
+import org.bouncycastle.openssl.PEMReader;
+import org.bouncycastle.openssl.PasswordFinder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * (from org.apache.sshd.common.keyprovider.FileKeyPairProvider)
+ * This host key provider loads private keys from the specified resources.
+ * <p/>
+ * Note that this class has a direct dependency on BouncyCastle and won't work
+ * unless it has been correctly registered as a security provider.
+ *
+ * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
+ */
+public class ResourceKeyPairProvider extends AbstractKeyPairProvider {
+    // --- Shared ---
+
+    /**
+     * Logger
+     */
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    // --- Properties ---
+
+    /**
+     * Class loader
+     */
+    private final ClassLoader cloader;
+
+    /**
+     * Key resources
+     */
+    private String[] resources;
+
+    /**
+     * Password finder
+     */
+    private PasswordFinder passwordFinder;
+
+    // ---
+
+    /**
+     * No-arg constructor.
+     */
+    public ResourceKeyPairProvider() {
+        this.cloader = this.getClass().getClassLoader();
+    } // end of <init>
+
+    /**
+     * Bulk constructor 1.
+     */
+    public ResourceKeyPairProvider(String[] resources) {
+        this.cloader = this.getClass().getClassLoader();
+        this.resources = resources;
+    } // end of <init>
+
+    /**
+     * Bulk constructor 2.
+     */
+    public ResourceKeyPairProvider(String[] resources,
+                                   PasswordFinder passwordFinder) {
+
+        this.cloader = this.getClass().getClassLoader();
+        this.resources = resources;
+        this.passwordFinder = passwordFinder;
+    } // end of <init>
+
+    /**
+     * Bulk constructor 3.
+     */
+    public ResourceKeyPairProvider(String[] resources,
+                                   PasswordFinder passwordFinder,
+                                   ClassLoader cloader) {
+
+        this.cloader = cloader;
+        this.resources = resources;
+        this.passwordFinder = passwordFinder;
+    } // end of <init>
+
+    // --- Properties accessors ---
+
+    /**
+     * {@inheritDoc}
+     */
+    public String[] getResources() {
+        return this.resources;
+    } // end of getResources
+
+    /**
+     * {@inheritDoc}
+     */
+    public void setResources(String[] resources) {
+        this.resources = resources;
+    } // end of setResources
+
+    /**
+     * {@inheritDoc}
+     */
+    public PasswordFinder getPasswordFinder() {
+        return this.passwordFinder;
+    } // end of getPasswordFinder
+
+    /**
+     * {@inheritDoc}
+     */
+    public void setPasswordFinder(PasswordFinder passwordFinder) {
+        this.passwordFinder = passwordFinder;
+    } // end of setPasswordFinder
+
+    /**
+     * {@inheritDoc}
+     */
+    public KeyPair[] loadKeys() {
+        if (!SecurityUtils.isBouncyCastleRegistered()) {
+            throw new IllegalStateException("BouncyCastle must be registered as a JCE provider");
+        } // end of if
+
+        // ---
+
+        final List<KeyPair> keys =
+                new ArrayList<KeyPair>(this.resources.length);
+
+        for (String resource : resources) {
+            PEMReader r = null;
+            InputStreamReader isr = null;
+            InputStream is = null;
+            try {
+                is = this.cloader.getResourceAsStream(resource);
+                isr = new InputStreamReader(is);
+                r = new PEMReader(isr);
+
+                Object o = r.readObject();
+
+                if (o instanceof KeyPair) {
+                    keys.add((KeyPair) o);
+                } // end of if
+            } catch (Exception e) {
+                log.warn("Unable to read key", e);
+            } finally {
+                IoUtils.closeQuietly(r, is, isr);
+            } // end of finally
+        } // end of for
+
+        return keys.toArray(new KeyPair[keys.size()]);
+    } // end of loadKeys
+} // end of class ResourceKeyPairProvider
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