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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 org.apache.harmony.xnet.provider.jsse;
import java.security.InvalidKeyException;
import java.security.PrivateKey;
public class OpenSSLEngine {
static {
NativeCrypto.ENGINE_load_dynamic();
}
/** The ENGINE's native handle. */
private final int ctx;
public static OpenSSLEngine getInstance(String engine) throws IllegalArgumentException {
if (engine == null) {
throw new NullPointerException("engine == null");
}
final int engineCtx = NativeCrypto.ENGINE_by_id(engine);
if (engineCtx == 0) {
throw new IllegalArgumentException("Unknown ENGINE id: " + engine);
}
return new OpenSSLEngine(engineCtx);
}
private OpenSSLEngine(int engineCtx) {
ctx = engineCtx;
if (NativeCrypto.ENGINE_init(engineCtx) == 0) {
throw new IllegalArgumentException("Could not initialize engine");
}
}
public PrivateKey getPrivateKeyById(String id) throws InvalidKeyException {
if (id == null) {
throw new NullPointerException("id == null");
}
final int keyRef = NativeCrypto.ENGINE_load_private_key(ctx, id);
if (keyRef == 0) {
return null;
}
final int keyType = NativeCrypto.EVP_PKEY_type(keyRef);
switch (keyType) {
case NativeCrypto.EVP_PKEY_RSA:
return OpenSSLRSAPrivateKey.getInstance(new OpenSSLKey(keyRef, this));
case NativeCrypto.EVP_PKEY_DSA:
return new OpenSSLDSAPrivateKey(new OpenSSLKey(keyRef, this));
default:
throw new InvalidKeyException("Unknown key type: " + keyType);
}
}
int getEngineContext() {
return ctx;
}
@Override
protected void finalize() throws Throwable {
try {
NativeCrypto.ENGINE_finish(ctx);
NativeCrypto.ENGINE_free(ctx);
} finally {
super.finalize();
}
}
@Override
public boolean equals(Object o) {
if (o == this) {
return true;
}
if (!(o instanceof OpenSSLEngine)) {
return false;
}
OpenSSLEngine other = (OpenSSLEngine) o;
return other.getEngineContext() == ctx;
}
@Override
public int hashCode() {
return ctx;
}
}
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