1 files changed, 204 insertions, 0 deletions
diff --git a/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/BinaryInstaller.java b/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/BinaryInstaller.java
new file mode 100644
index 00000000..0d6aa61e
--- /dev/null
+++ b/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/BinaryInstaller.java
@@ -0,0 +1,204 @@
+/* Copyright (c) 2009, Nathan Freitas, Orbot / The Guardian Project - http://openideals.com/guardian */
+/* See LICENSE for licensing information */
+
+package se.leap.bitmaskclient.pluggableTransports;
+
+import android.content.Context;
+import android.util.Log;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.concurrent.TimeoutException;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+
+public class BinaryInstaller {
+
+    File installFolder;
+    Context context;
+
+    public BinaryInstaller(Context context, File installFolder)
+    {
+        this.installFolder = installFolder;
+
+        this.context = context;
+    }
+
+    public void deleteDirectory(File file) {
+        if( file.exists() ) {
+            if (file.isDirectory()) {
+                File[] files = file.listFiles();
+                for(int i=0; i<files.length; i++) {
+                    if(files[i].isDirectory()) {
+                        deleteDirectory(files[i]);
+                    }
+                    else {
+                        files[i].delete();
+                    }
+                }
+            }
+
+            file.delete();
+        }
+    }
+
+    private final static String COMMAND_RM_FORCE = "rm -f ";
+    private final static String MP3_EXT = ".mp3";
+    //        
+    /*
+     * Extract the resources from the APK file using ZIP
+     */
+    public File installResource (String basePath, String assetKey, boolean overwrite) throws IOException, FileNotFoundException, TimeoutException
+    {
+
+        InputStream is;
+        File outFile;
+
+        outFile = new File(installFolder, assetKey);
+
+        if (outFile.exists() && (!overwrite)) {
+            Log.d("BINARY_INSTALLER", "Binary already exists! Using " + outFile.getCanonicalPath());
+            return outFile;
+        }
+
+        deleteDirectory(installFolder);
+        installFolder.mkdirs();
+
+        Log.d("BINARY_INSTALLER", "Search asset in " + basePath + "/" + assetKey);
+
+        is = context.getAssets().open(basePath + '/' + assetKey);
+        streamToFile(is,outFile, false, false);
+        setExecutable(outFile);
+
+        Log.d("BINARY_INSTALLER", "Asset copied from " + basePath + "/" + assetKey + " to: " + outFile.getCanonicalPath());
+
+        return outFile;
+    }
+
+
+    private final static int FILE_WRITE_BUFFER_SIZE = 1024*8;
+    /*
+     * Write the inputstream contents to the file
+     */
+    public static boolean streamToFile(InputStream stm, File outFile, boolean append, boolean zip) throws IOException
+
+    {
+        byte[] buffer = new byte[FILE_WRITE_BUFFER_SIZE];
+
+        int bytecount;
+
+        OutputStream stmOut = new FileOutputStream(outFile.getAbsolutePath(), append);
+        ZipInputStream zis = null;
+
+        if (zip)
+        {
+            zis = new ZipInputStream(stm);
+            ZipEntry ze = zis.getNextEntry();
+            stm = zis;
+
+        }
+
+        while ((bytecount = stm.read(buffer)) > 0)
+        {
+
+            stmOut.write(buffer, 0, bytecount);
+
+        }
+
+        stmOut.close();
+        stm.close();
+
+        if (zis != null)
+            zis.close();
+
+
+        return true;
+
+    }
+
+    //copy the file from inputstream to File output - alternative impl
+    public static boolean copyFile (InputStream is, File outputFile)
+    {
+
+        try {
+            if (outputFile.exists())
+                outputFile.delete();
+
+            boolean newFile = outputFile.createNewFile();
+            DataOutputStream out = new DataOutputStream(new FileOutputStream(outputFile));
+            DataInputStream in = new DataInputStream(is);
+
+            int b = -1;
+            byte[] data = new byte[1024];
+
+            while ((b = in.read(data)) != -1) {
+                out.write(data);
+            }
+
+            if (b == -1); //rejoice
+
+            //
+            out.flush();
+            out.close();
+            in.close();
+            // chmod?
+
+            return newFile;
+
+
+        } catch (IOException ex) {
+            Log.e("Binaryinstaller", "error copying binary", ex);
+            return false;
+        }
+
+    }
+
+    /**
+     * Copies a raw resource file, given its ID to the given location
+     * @param ctx context
+     * @param resid resource id
+     * @param file destination file
+     * @param mode file permissions (E.g.: "755")
+     * @throws IOException on error
+     * @throws InterruptedException when interrupted
+     */
+    public static void copyRawFile(Context ctx, int resid, File file, String mode, boolean isZipd) throws IOException, InterruptedException
+    {
+        final String abspath = file.getAbsolutePath();
+        // Write the iptables binary
+        final FileOutputStream out = new FileOutputStream(file);
+        InputStream is = ctx.getResources().openRawResource(resid);
+
+        if (isZipd)
+        {
+            ZipInputStream zis = new ZipInputStream(is);
+            ZipEntry ze = zis.getNextEntry();
+            is = zis;
+        }
+
+        byte buf[] = new byte[1024];
+        int len;
+        while ((len = is.read(buf)) > 0) {
+            out.write(buf, 0, len);
+        }
+        out.close();
+        is.close();
+        // Change the permissions
+        Runtime.getRuntime().exec("chmod "+mode+" "+abspath).waitFor();
+    }
+
+
+    private void setExecutable(File fileBin) {
+        fileBin.setReadable(true);
+        fileBin.setExecutable(true);
+        fileBin.setWritable(false);
+        fileBin.setWritable(true, true);
+    }
+
+}