Add --keypass option to CLI

Up to now we only supported the default key pass (the same as the
store password). This change adds a new option to "encrypt" and
"decrypt" commands.

Fixes gh-26

spring-cloud-cli/src/main/java/org/springframework/cloud/cli/command/encrypt/BaseEncryptOptionHandler.java

@@ -40,6 +40,8 @@ class BaseEncryptOptionHandler extends OptionHandler {
 
 	private OptionSpec<String> passwordOption;
 
+	private OptionSpec<String> keyPassOption;
+
 	private Charset charset;
 
 	{
@@ -48,16 +50,18 @@ class BaseEncryptOptionHandler extends OptionHandler {
 
 	@Override
 	protected final void options() {
-		this.keyOption = option(
+		this.keyOption = option(asList("key", "k"),
-				asList("key", "k"),
 				"Specify key (symmetric secret, or pem-encoded key). If the value starts with @ it is interpreted as a file location.")
-				.withRequiredArg();
+						.withRequiredArg();
 		this.passwordOption = option("password",
-				"A password for the keyfile (assuming the --key option is a KetStore file).")
+				"A password for the keyfile (assuming the --key option is a KeyStore file).")
-				.withRequiredArg();
+						.withRequiredArg();
+		this.keyPassOption = option("keypass",
+				"A password for the key, defaults to the same as the store password (assuming the --key option is a KeyStore file).")
+						.withRequiredArg();
 		this.aliasOption = option("alias",
-				"An alias for the the key in a keyfile (assuming the --key option is a KetStore file).")
+				"An alias for the the key in a keyfile (assuming the --key option is a KeyStore file).")
-				.withRequiredArg();
+						.withRequiredArg();
 		doOptions();
 	}
 
@@ -66,17 +70,25 @@ class BaseEncryptOptionHandler extends OptionHandler {
 
 	protected TextEncryptor createEncryptor(OptionSet options) {
 		String value = keyOption.value(options);
-		if (value==null) {
+		if (value == null) {
 			throw new MissingKeyException();
 		}
 		if (options.has(passwordOption)) { // it's a keystore
 			String password = options.valueOf(passwordOption);
 			String alias = options.valueOf(aliasOption);
-			KeyStoreKeyFactory factory = new KeyStoreKeyFactory(new FileSystemResource(
+			KeyStoreKeyFactory factory = new KeyStoreKeyFactory(
-					value), password.toCharArray());
+					new FileSystemResource(value), password.toCharArray());
-			RsaSecretEncryptor encryptor = new RsaSecretEncryptor(
+			if (options.has(keyPassOption)) {
-					factory.getKeyPair(alias));
+				String keypass = options.valueOf(keyPassOption);
-			return encryptor;
+				RsaSecretEncryptor encryptor = new RsaSecretEncryptor(
+						factory.getKeyPair(alias, keypass.toCharArray()));
+				return encryptor;
+			}
+			else {
+				RsaSecretEncryptor encryptor = new RsaSecretEncryptor(
+						factory.getKeyPair(alias));
+				return encryptor;
+			}
 		}
 		boolean verbose = Boolean.getBoolean("debug");
 		if (value.startsWith("@")) {

spring-cloud-cli/src/test/java/org/springframework/cloud/cli/command/encrypt/DecryptCommandTests.java

@@ -22,6 +22,7 @@ import java.nio.charset.Charset;
 import org.junit.Test;
 import org.springframework.boot.cli.command.status.ExitStatus;
 import org.springframework.core.io.ClassPathResource;
+import org.springframework.security.rsa.crypto.KeyStoreKeyFactory;
 import org.springframework.security.rsa.crypto.RsaSecretEncryptor;
 import org.springframework.util.StreamUtils;
 
@@ -49,6 +50,19 @@ public class DecryptCommandTests {
 				command.run("-k", "@src/test/resources/private.pem", cipher));
 	}
 
+	@Test
+	public void decryptsFromRsaKeyWithKeyStore() throws Exception {
+		KeyStoreKeyFactory factory = new KeyStoreKeyFactory(
+				new ClassPathResource("keystore.jks"), "letmein".toCharArray());
+		RsaSecretEncryptor encryptor = new RsaSecretEncryptor(
+				factory.getKeyPair("mytestkey", "changeme".toCharArray()));
+		String cipher = encryptor.encrypt("foo");
+		assertEquals(ExitStatus.OK,
+				command.run("-k", "src/test/resources/keystore.jks", "--password",
+						"letmein", "--keypass", "changeme", "--alias", "mytestkey",
+						cipher));
+	}
+
 	@Test(expected = IllegalArgumentException.class)
 	public void failsWithPlainText() throws Exception {
 		assertEquals(ExitStatus.OK, command.run("-k", "deadbeef", "foo"));