1 files changed, 82 insertions, 0 deletions
diff --git a/build/android/app/src/main/java/net/minetest/minetest/CopyZipTask.java b/build/android/app/src/main/java/net/minetest/minetest/CopyZipTask.java
new file mode 100644
index 000000000..770995502
--- /dev/null
+++ b/build/android/app/src/main/java/net/minetest/minetest/CopyZipTask.java
@@ -0,0 +1,82 @@
+/*
+Minetest
+Copyright (C) 2014-2020 MoNTE48, Maksim Gamarnik <MoNTE48@mail.ua>
+Copyright (C) 2014-2020 ubulem,  Bektur Mambetov <berkut87@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+package net.minetest.minetest;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.AsyncTask;
+import android.util.Log;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.lang.ref.WeakReference;
+
+public class CopyZipTask extends AsyncTask<String, Void, String> {
+
+	private final WeakReference<Context> contextRef;
+
+	CopyZipTask(Context context) {
+		contextRef = new WeakReference<>(context);
+	}
+
+	protected String doInBackground(String... params) {
+		copyAssets(params);
+		return params[0];
+	}
+
+	@Override
+	protected void onPostExecute(String result) {
+		startUnzipService(result);
+	}
+
+	private void copyAsset(String zipName) throws IOException {
+		String filename = zipName.substring(zipName.lastIndexOf("/") + 1);
+		try (InputStream in = contextRef.get().getAssets().open(filename);
+		     OutputStream out = new FileOutputStream(zipName)) {
+			copyFile(in, out);
+		}
+	}
+
+	private void copyAssets(String[] zips) {
+		try {
+			for (String zipName : zips)
+				copyAsset(zipName);
+		} catch (IOException e) {
+			Log.e("CopyZipTask", e.getLocalizedMessage());
+			cancel(true);
+		}
+	}
+
+	private void copyFile(InputStream in, OutputStream out) throws IOException {
+		byte[] buffer = new byte[1024];
+		int read;
+		while ((read = in.read(buffer)) != -1)
+			out.write(buffer, 0, read);
+	}
+
+	private void startUnzipService(String file) {
+		Intent intent = new Intent(contextRef.get(), UnzipService.class);
+		intent.putExtra(UnzipService.EXTRA_KEY_IN_FILE, file);
+		contextRef.get().startService(intent);
+	}
+}