| /* |
| * Copyright (C) 2014 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.conscrypt; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.ByteBuffer; |
| |
| public final class OpenSSLBIOSource { |
| private OpenSSLBIOInputStream source; |
| |
| public static OpenSSLBIOSource wrap(ByteBuffer buffer) { |
| return new OpenSSLBIOSource( |
| new OpenSSLBIOInputStream(new ByteBufferInputStream(buffer), false)); |
| } |
| |
| public OpenSSLBIOSource(OpenSSLBIOInputStream source) { |
| this.source = source; |
| } |
| |
| public long getContext() { |
| return source.getBioContext(); |
| } |
| |
| public synchronized void release() { |
| if (source != null) { |
| NativeCrypto.BIO_free_all(source.getBioContext()); |
| source = null; |
| } |
| } |
| |
| @Override |
| protected void finalize() throws Throwable { |
| try { |
| release(); |
| } finally { |
| super.finalize(); |
| } |
| } |
| |
| private static class ByteBufferInputStream extends InputStream { |
| private final ByteBuffer source; |
| |
| public ByteBufferInputStream(ByteBuffer source) { |
| this.source = source; |
| } |
| |
| @Override |
| public int read() throws IOException { |
| if (source.remaining() > 0) { |
| return source.get(); |
| } else { |
| return -1; |
| } |
| } |
| |
| @Override |
| public int available() throws IOException { |
| return source.limit() - source.position(); |
| } |
| |
| @Override |
| public int read(byte[] buffer) throws IOException { |
| int originalPosition = source.position(); |
| source.get(buffer); |
| return source.position() - originalPosition; |
| } |
| |
| @Override |
| public int read(byte[] buffer, int byteOffset, int byteCount) throws IOException { |
| int toRead = Math.min(source.remaining(), byteCount); |
| int originalPosition = source.position(); |
| source.get(buffer, byteOffset, toRead); |
| return source.position() - originalPosition; |
| } |
| |
| @Override |
| public void reset() throws IOException { |
| source.reset(); |
| } |
| |
| @Override |
| public long skip(long byteCount) throws IOException { |
| int originalPosition = source.position(); |
| source.position((int) (originalPosition + byteCount)); |
| return source.position() - originalPosition; |
| } |
| } |
| } |