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[tor-commits] [orbot/master] create zip backup from itent



commit 5edfc344dc0e1b6c7149322122e1c7a487cbd449
Author: arrase <arrase@xxxxxxxxx>
Date:   Fri Nov 18 00:53:49 2016 +0100

    create zip backup from itent
---
 .../org/torproject/android/OrbotMainActivity.java  | 34 +++++++++------
 .../android/hsutils/ExternalStorage.java           | 42 ++++++++++++++++++
 .../android/hsutils/HiddenServiceUtils.java        | 43 +++++++++++++++++++
 .../java/org/torproject/android/hsutils/ZipIt.java | 50 ++++++++++++++++++++++
 4 files changed, 156 insertions(+), 13 deletions(-)

diff --git a/app/src/main/java/org/torproject/android/OrbotMainActivity.java b/app/src/main/java/org/torproject/android/OrbotMainActivity.java
index d6012d5..85dc028 100644
--- a/app/src/main/java/org/torproject/android/OrbotMainActivity.java
+++ b/app/src/main/java/org/torproject/android/OrbotMainActivity.java
@@ -29,6 +29,7 @@ import org.torproject.android.ui.PromoAppsActivity;
 import org.torproject.android.ui.Rotate3dAnimation;
 import org.torproject.android.ui.hs.providers.HSContentProvider;
 import org.torproject.android.vpn.VPNEnableActivity;
+import org.torproject.android.hsutils.HiddenServiceUtils;
 
 import android.annotation.SuppressLint;
 import android.app.ActivityManager;
@@ -596,25 +597,23 @@ public class OrbotMainActivity extends AppCompatActivity
             stopVpnService();
     }
 	
-	private void enableHiddenServicePort (String hsName, int hsPort, int hsRemotePort) throws RemoteException, InterruptedException
+	private void enableHiddenServicePort (String hsName, final int hsPort, int hsRemotePort, final boolean doBackup) throws RemoteException, InterruptedException
 	{
 		String onionHostname = null;
 
-		final int mHsPort = hsPort;
-
 		if(hsName == null)
-			hsName = "hs" + mHsPort;
+			hsName = "hs" + hsPort;
 
 		if(hsRemotePort == -1)
-			hsRemotePort = mHsPort;
+			hsRemotePort = hsPort;
 
 		ContentValues fields = new ContentValues();
 		fields.put("name", hsName);
-		fields.put("port", mHsPort);
+		fields.put("port", hsPort);
 		fields.put("onion_port", hsRemotePort);
 
 		ContentResolver cr = getContentResolver();
-		Cursor row = cr.query(HSContentProvider.CONTENT_URI, mProjection, "port=" + mHsPort, null, null);
+		Cursor row = cr.query(HSContentProvider.CONTENT_URI, mProjection, "port=" + hsPort, null, null);
 
 		if(row == null) {
 			cr.insert(HSContentProvider.CONTENT_URI, fields);
@@ -632,6 +631,7 @@ public class OrbotMainActivity extends AppCompatActivity
 			    public void run ()
 				{
 					String hostname = null;
+					String backupPath = null;
 
 					while (hostname == null)
 					{
@@ -643,16 +643,22 @@ public class OrbotMainActivity extends AppCompatActivity
 							e.printStackTrace();
 						}
 
-						Cursor onion = getContentResolver().query(HSContentProvider.CONTENT_URI, mProjection, "port=" + mHsPort, null, null);
+						Cursor onion = getContentResolver().query(HSContentProvider.CONTENT_URI, mProjection, "port=" + hsPort, null, null);
 						if(onion != null) {
 							hostname = onion.getString(onion.getColumnIndex(HSContentProvider.HiddenService.NAME));
+							if(doBackup) {
+								HiddenServiceUtils hsutils = new HiddenServiceUtils(getApplicationContext());
+								backupPath = hsutils.createOnionBackup(hsPort);
+							}
 							onion.close();
 						}
 					}
 
 					Intent nResult = new Intent();
 					nResult.putExtra("hs_host", hostname);
-					// TODO: Add key
+					if(doBackup && backupPath != null) {
+						nResult.putExtra("hs_backup_path", backupPath);
+					}
 					setResult(RESULT_OK, nResult);
 					finish();
 				}
@@ -685,9 +691,10 @@ public class OrbotMainActivity extends AppCompatActivity
 		
 		if (action.equals(INTENT_ACTION_REQUEST_HIDDEN_SERVICE))
 		{
-        	final int hiddenServicePort = getIntent().getIntExtra("hs_port", -1);
-        	final int hiddenServiceRemotePort = getIntent().getIntExtra("hs_onion_port", -1);
-        	final String  hiddenServiceName = getIntent().getStringExtra("hs_name");
+        	final int hiddenServicePort = intent.getIntExtra("hs_port", -1);
+        	final int hiddenServiceRemotePort = intent.getIntExtra("hs_onion_port", -1);
+        	final String hiddenServiceName = intent.getStringExtra("hs_name");
+        	final Boolean createBackup = intent.getBooleanExtra("hs_backup",false);
 
 			DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
 			    
@@ -697,7 +704,8 @@ public class OrbotMainActivity extends AppCompatActivity
 			            
 						try {
 							enableHiddenServicePort (
-									hiddenServiceName, hiddenServicePort, hiddenServiceRemotePort
+									hiddenServiceName, hiddenServicePort,
+									hiddenServiceRemotePort, createBackup
 							);
 						} catch (RemoteException e) {
 							// TODO Auto-generated catch block
diff --git a/app/src/main/java/org/torproject/android/hsutils/ExternalStorage.java b/app/src/main/java/org/torproject/android/hsutils/ExternalStorage.java
new file mode 100644
index 0000000..400f39a
--- /dev/null
+++ b/app/src/main/java/org/torproject/android/hsutils/ExternalStorage.java
@@ -0,0 +1,42 @@
+package org.torproject.android.hsutils;
+
+import android.os.Environment;
+
+import java.io.File;
+
+public class ExternalStorage {
+    private final String BACKUPS_DIR = "Orbot-HiddenServices";
+
+    public String createBackupDir() {
+        if (!isExternalStorageWritable()) {
+            return null;
+        }
+
+        File path = Environment.getExternalStoragePublicDirectory(BACKUPS_DIR);
+
+        if (!path.mkdirs()) {
+            return null;
+        }
+
+        return path.getAbsolutePath();
+    }
+
+    /* Checks if external storage is available for read and write */
+    public boolean isExternalStorageWritable() {
+        String state = Environment.getExternalStorageState();
+        if (Environment.MEDIA_MOUNTED.equals(state)) {
+            return true;
+        }
+        return false;
+    }
+
+    /* Checks if external storage is available to at least read */
+    public boolean isExternalStorageReadable() {
+        String state = Environment.getExternalStorageState();
+        if (Environment.MEDIA_MOUNTED.equals(state) ||
+                Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
+            return true;
+        }
+        return false;
+    }
+}
diff --git a/app/src/main/java/org/torproject/android/hsutils/HiddenServiceUtils.java b/app/src/main/java/org/torproject/android/hsutils/HiddenServiceUtils.java
new file mode 100644
index 0000000..2eb434c
--- /dev/null
+++ b/app/src/main/java/org/torproject/android/hsutils/HiddenServiceUtils.java
@@ -0,0 +1,43 @@
+package org.torproject.android.hsutils;
+
+import android.app.Application;
+import android.content.Context;
+
+import org.torproject.android.service.TorServiceConstants;
+
+import java.io.File;
+
+public class HiddenServiceUtils {
+    private static File appCacheHome;
+
+    public HiddenServiceUtils(Context context) {
+        appCacheHome = context.getDir(TorServiceConstants.DIRECTORY_TOR_DATA, Application.MODE_PRIVATE);
+    }
+
+    public String createOnionBackup(Integer port) {
+
+        ExternalStorage storage = new ExternalStorage();
+        String storage_path = storage.createBackupDir();
+        if (storage_path == null) {
+            return null;
+        }
+
+        String zip_path = storage_path + "/hs" + port + ".zip";
+        String files[] = {
+                appCacheHome + "/hs" + port + "/hostname",
+                appCacheHome + "/hs" + port + "/private_key"
+        };
+
+        ZipIt zip = new ZipIt(files, zip_path);
+
+        if (!zip.zip()) {
+            return null;
+        }
+
+        return zip_path;
+    }
+
+    public void restoreOnionBackup(String path) {
+
+    }
+}
diff --git a/app/src/main/java/org/torproject/android/hsutils/ZipIt.java b/app/src/main/java/org/torproject/android/hsutils/ZipIt.java
new file mode 100644
index 0000000..39544ec
--- /dev/null
+++ b/app/src/main/java/org/torproject/android/hsutils/ZipIt.java
@@ -0,0 +1,50 @@
+package org.torproject.android.hsutils;
+
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+public class ZipIt {
+    private static final int BUFFER = 2048;
+
+    private String[] _files;
+    private String _zipFile;
+
+    public ZipIt(String[] files, String zipFile) {
+        _files = files;
+        _zipFile = zipFile;
+    }
+
+    public boolean zip() {
+        try {
+            BufferedInputStream origin = null;
+            FileOutputStream dest = new FileOutputStream(_zipFile);
+
+            ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(dest));
+
+            byte data[] = new byte[BUFFER];
+
+            for (String _file : _files) {
+                FileInputStream fi = new FileInputStream(_file);
+                origin = new BufferedInputStream(fi, BUFFER);
+                ZipEntry entry = new ZipEntry(_file.substring(_file.lastIndexOf("/") + 1));
+                out.putNextEntry(entry);
+                int count;
+                while ((count = origin.read(data, 0, BUFFER)) != -1) {
+                    out.write(data, 0, count);
+                }
+                origin.close();
+            }
+
+            out.close();
+        } catch (Exception e) {
+            return false;
+        }
+
+        return true;
+    }
+}
\ No newline at end of file



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