The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mobile/android/base/mozglue/NativeZip.java	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,87 @@
     1.4 +/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +package org.mozilla.gecko.mozglue;
    1.10 +
    1.11 +import org.mozilla.gecko.mozglue.generatorannotations.WrapElementForJNI;
    1.12 +
    1.13 +import java.io.InputStream;
    1.14 +import java.nio.ByteBuffer;
    1.15 +import java.util.zip.Inflater;
    1.16 +import java.util.zip.InflaterInputStream;
    1.17 +
    1.18 +public class NativeZip implements NativeReference {
    1.19 +    private static final int DEFLATE = 8;
    1.20 +    private static final int STORE = 0;
    1.21 +
    1.22 +    private volatile long mObj;
    1.23 +    private InputStream mInput;
    1.24 +
    1.25 +    public NativeZip(String path) {
    1.26 +        mObj = getZip(path);
    1.27 +        mInput = null;
    1.28 +    }
    1.29 +
    1.30 +    public NativeZip(InputStream input) {
    1.31 +        if (!(input instanceof ByteBufferInputStream)) {
    1.32 +            throw new IllegalArgumentException("Got " + input.getClass()
    1.33 +                                               + ", but expected ByteBufferInputStream!");
    1.34 +        }
    1.35 +        ByteBufferInputStream bbinput = (ByteBufferInputStream)input;
    1.36 +        mObj = getZipFromByteBuffer(bbinput.mBuf);
    1.37 +        mInput = input;
    1.38 +    }
    1.39 +
    1.40 +    @Override
    1.41 +    public void finalize() {
    1.42 +        release();
    1.43 +    }
    1.44 +
    1.45 +    public void close() {
    1.46 +        release();
    1.47 +    }
    1.48 +
    1.49 +    @Override
    1.50 +    public void release() {
    1.51 +        if (mObj != 0) {
    1.52 +            _release(mObj);
    1.53 +            mObj = 0;
    1.54 +        }
    1.55 +        mInput = null;
    1.56 +    }
    1.57 +
    1.58 +    @Override
    1.59 +    public boolean isReleased() {
    1.60 +        return (mObj == 0);
    1.61 +    }
    1.62 +
    1.63 +    public InputStream getInputStream(String path) {
    1.64 +        if (isReleased()) {
    1.65 +            throw new IllegalStateException("Can't get path \"" + path
    1.66 +                                            + "\" because NativeZip is closed!");
    1.67 +        }
    1.68 +        return _getInputStream(mObj, path);
    1.69 +    }
    1.70 +
    1.71 +    private static native long getZip(String path);
    1.72 +    private static native long getZipFromByteBuffer(ByteBuffer buffer);
    1.73 +    private static native void _release(long obj);
    1.74 +    private native InputStream _getInputStream(long obj, String path);
    1.75 +
    1.76 +    @WrapElementForJNI
    1.77 +    private InputStream createInputStream(ByteBuffer buffer, int compression) {
    1.78 +        if (compression != STORE && compression != DEFLATE) {
    1.79 +            throw new IllegalArgumentException("Unexpected compression: " + compression);
    1.80 +        }
    1.81 +
    1.82 +        InputStream input = new ByteBufferInputStream(buffer, this);
    1.83 +        if (compression == DEFLATE) {
    1.84 +            Inflater inflater = new Inflater(true);
    1.85 +            input = new InflaterInputStream(input, inflater);
    1.86 +        }
    1.87 +
    1.88 +        return input;
    1.89 +    }
    1.90 +}