159 lines
2.9 KiB
Java
159 lines
2.9 KiB
Java
/* Copyright (c) 2009-2011, Nathan Freitas, The Guardian Project - http://openideals.com/guardian */
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/* See LICENSE for licensing information */
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package org.torproject.android;
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import java.io.DataInputStream;
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import java.io.DataOutputStream;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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import android.util.Log;
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public class TorBinaryInstaller implements TorConstants {
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private final static String LOG_TAG = "Tor";
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public TorBinaryInstaller ()
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{
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}
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/*
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* Start the binary installation if the file doesn't exist or is forced
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*/
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public void start (boolean force)
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{
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boolean binaryExists = new File(TOR_BINARY_INSTALL_PATH).exists();
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Log.i(LOG_TAG,"Tor binary exists=" + binaryExists);
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if (!binaryExists || force)
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installFromZip ();
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}
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/*
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* Extract the Tor binary from the APK file using ZIP
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*/
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private void installFromZip ()
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{
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try
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{
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ZipFile zip = new ZipFile(APK_PATH);
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ZipEntry zipen = zip.getEntry(TOR_BINARY_ZIP_KEY);
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streamToFile(zip.getInputStream(zipen),TOR_BINARY_INSTALL_PATH);
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zipen = zip.getEntry(TORRC_ZIP_KEY);
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streamToFile(zip.getInputStream(zipen),TORRC_INSTALL_PATH);
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zip.close();
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}
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catch (IOException ioe)
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{
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Log.i(LOG_TAG,"unable to unzip tor binary from apk",ioe);
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}
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}
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/*
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* Write the inputstream contents to the file
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*/
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private static void streamToFile(InputStream stm, String targetFilename)
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{
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FileOutputStream stmOut = null;
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byte[] buffer = new byte[FILE_WRITE_BUFFER_SIZE];
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int bytecount;
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File outFile = new File(targetFilename);
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try {
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outFile.createNewFile();
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stmOut = new FileOutputStream(outFile);
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}
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catch (java.io.IOException e)
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{
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Log.i(LOG_TAG,"Error opening output file " + targetFilename,e);
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return;
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}
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try
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{
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while ((bytecount = stm.read(buffer)) > 0)
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{
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stmOut.write(buffer, 0, bytecount);
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}
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stmOut.close();
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}
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catch (java.io.IOException e)
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{
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Log.i(LOG_TAG,"Error writing output file '" + targetFilename + "': " + e.toString());
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return;
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}
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}
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//copy the file from inputstream to File output - alternative impl
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public void copyFile (InputStream is, File outputFile)
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{
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try {
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outputFile.createNewFile();
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DataOutputStream out = new DataOutputStream(new FileOutputStream(outputFile));
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DataInputStream in = new DataInputStream(is);
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int b;
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byte[] data = new byte[1024];
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while ((b = in.read(data)) != -1) {
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out.write(data);
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}
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//
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out.flush();
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out.close();
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in.close();
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// chmod?
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} catch (IOException ex) {
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Log.e(LOG_TAG, "error copying binary", ex);
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}
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}
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}
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