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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed 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 com.android.ant;
import com.android.sdklib.internal.build.SignedJarBuilder;
import com.android.sdklib.internal.build.SignedJarBuilder.IZipEntryFilter;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.types.Path;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.security.KeyStore;
import java.security.KeyStore.PrivateKeyEntry;
import java.security.cert.X509Certificate;
/**
* Simple Task to sign an apk.
*
*/
public class SignApkTask extends SingleInputOutputTask {
private String mKeystore;
private String mStorepass;
private String mAlias;
private String mKeypass;
public void setKeystore(Path keystore) {
mKeystore = TaskHelper.checkSinglePath("keystore", keystore);
}
public void setStorepass(String storepass) {
mStorepass = storepass;
}
public void setAlias(String alias) {
mAlias = alias;
}
public void setKeypass(String keypass) {
mKeypass = keypass;
}
@Override
protected void createOutput() throws BuildException {
PrivateKeyEntry key = loadKeyEntry(
mKeystore, null, mStorepass.toCharArray(),
mAlias, mKeypass.toCharArray());
if (key == null) {
throw new BuildException(String.format("Signing key %s not found", mAlias));
}
SignedJarBuilder mBuilder = null;
try {
mBuilder = new SignedJarBuilder(
new FileOutputStream(getOutput(), false /* append */),
key.getPrivateKey(), (X509Certificate) key.getCertificate());
mBuilder.writeZip(new FileInputStream(getInput()), new NullZipFilter());
mBuilder.close();
} catch (FileNotFoundException e) {
throw new BuildException(String.format("Keystore '%s' is not found!", mKeystore));
} catch (Exception e) {
throw new BuildException(e.getMessage());
} finally {
if (mBuilder != null) {
mBuilder.cleanUp();
}
}
}
/**
* Loads the debug key from the keystore.
* @param osKeyStorePath the OS path to the keystore.
* @param storeType an optional keystore type, or <code>null</code> if the default is to
* be used.
* @return <code>true</code> if success, <code>false</code> if the keystore does not exist.
*/
private PrivateKeyEntry loadKeyEntry(String osKeyStorePath, String storeType,
char[] storePassword, String alias, char[] aliasPassword) {
FileInputStream fis = null;
try {
KeyStore keyStore = KeyStore.getInstance(
storeType != null ? storeType : KeyStore.getDefaultType());
fis = new FileInputStream(osKeyStorePath);
keyStore.load(fis, storePassword);
return (KeyStore.PrivateKeyEntry)keyStore.getEntry(
alias, new KeyStore.PasswordProtection(aliasPassword));
} catch (Exception e) {
String msg = e.getMessage();
String causeMsg = null;
Throwable cause = e.getCause();
if (cause != null) {
causeMsg = cause.getMessage();
}
if (msg != null) {
if (causeMsg == null) {
throw new BuildException(msg);
} else {
throw new BuildException(msg + ": " + causeMsg);
}
} else {
if (causeMsg == null) {
throw new BuildException(e);
} else {
throw new BuildException(causeMsg);
}
}
} finally {
if (fis != null) {
try {
fis.close();
} catch (IOException e) {
// pass
}
}
}
}
private final static class NullZipFilter implements IZipEntryFilter {
@Override
public boolean checkEntry(String archivePath) throws ZipAbortException {
return true;
}
}
}