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Add initial export function to save the database as plain-text JSON file

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This commit is contained in:
Jakob Nixdorf 2017-06-30 18:16:16 +02:00
parent 6e68141638
commit 7f0784b6bb
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GPG key ID: BE99BF86574A7DBC
5 changed files with 145 additions and 19 deletions
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3
app/src/main/AndroidManifest.xml
View file

@ -2,6 +2,9 @@
<manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools"
package="org.shadowice.flocke.andotp">
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="false"
android:icon="@mipmap/ic_launcher"

86
app/src/main/java/org/shadowice/flocke/andotp/MainActivity.java
View file

@ -26,6 +26,7 @@ import android.Manifest;
import android.animation.ObjectAnimator;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
@ -65,6 +66,7 @@ public class MainActivity extends AppCompatActivity {
private Runnable handlerTask;
private static final int PERMISSIONS_REQUEST_CAMERA = 42;
private static final int PERMISSIONS_REQUEST_WRITE_EXPORT = 24;
private void doScanQRCode(){
new IntentIntegrator(MainActivity.this)
@ -74,17 +76,14 @@ public class MainActivity extends AppCompatActivity {
}
private void scanQRCode(){
// check Android 6 permission
if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
doScanQRCode();
} else {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.CAMERA}, PERMISSIONS_REQUEST_CAMERA);
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, PERMISSIONS_REQUEST_CAMERA);
}
}
private void showAbout() {
// Inflate the dialog_about message contents
View messageView = getLayoutInflater().inflate(R.layout.dialog_about, null, false);
String versionName = "";
@ -106,31 +105,72 @@ public class MainActivity extends AppCompatActivity {
builder.show();
}
private void doExportJSON() {
boolean success = SettingsHelper.exportAsJSON(this);
if (success)
showSimpleSnackbar(R.string.msg_export_success);
}
private void exportJSON() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
doExportJSON();
} else {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, PERMISSIONS_REQUEST_WRITE_EXPORT);
}
}
private void exportJSONWithWarning() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(getString(R.string.msg_security_warning))
.setMessage(getString(R.string.msg_export_warning))
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
exportJSON();
}
})
.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {}
})
.setIcon(android.R.drawable.ic_dialog_alert)
.show();
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
if(requestCode == PERMISSIONS_REQUEST_CAMERA) {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted
doScanQRCode();
} else {
Snackbar.make(fab, R.string.msg_camera_permission, Snackbar.LENGTH_LONG).setCallback(new Snackbar.Callback() {
@Override
public void onDismissed(Snackbar snackbar, int event) {
super.onDismissed(snackbar, event);
if (entries.isEmpty()) {
showNoAccount();
}
}
}).show();
showSimpleSnackbar(R.string.msg_camera_permission);
}
}
else {
} else if (requestCode == PERMISSIONS_REQUEST_WRITE_EXPORT) {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
doExportJSON();
} else {
showSimpleSnackbar(R.string.msg_storage_permissions);
}
} else {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
private Entry nextSelection = null;
private void showSimpleSnackbar(int string_res) {
Snackbar.make(fab, string_res, Snackbar.LENGTH_LONG).setCallback(new Snackbar.Callback() {
@Override
public void onDismissed(Snackbar snackbar, int event) {
super.onDismissed(snackbar, event);
if (entries.isEmpty()) {
showNoAccount();
}
}
}).show();
}
private void showNoAccount(){
Snackbar noAccountSnackbar = Snackbar.make(fab, R.string.no_accounts, Snackbar.LENGTH_INDEFINITE)
.setAction(R.string.button_add, new View.OnClickListener() {
@ -286,7 +326,15 @@ public class MainActivity extends AppCompatActivity {
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if(id == R.id.action_about){
if (id == R.id.action_export) {
exportJSONWithWarning();
return true;
} else if (id == R.id.action_import) {
SettingsHelper.importFromJSON(this);
return true;
} else if (id == R.id.action_about){
showAbout();
return true;

46
app/src/main/java/org/shadowice/flocke/andotp/SettingsHelper.java
View file

@ -27,11 +27,15 @@ import android.content.Context;
import org.json.JSONArray;
import org.json.JSONException;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.Writer;
import java.util.ArrayList;
import javax.crypto.SecretKey;
import static android.os.Environment.getExternalStorageDirectory;
import static org.shadowice.flocke.andotp.Utils.readFully;
import static org.shadowice.flocke.andotp.Utils.writeFully;
@ -39,6 +43,8 @@ public class SettingsHelper {
public static final String KEY_FILE = "otp.key";
public static final String SETTINGS_FILE = "secrets.dat";
public static final String EXPORT_FILE = "otp_accounts.json";
public static void store(Context context, ArrayList<Entry> entries){
JSONArray a = new JSONArray();
@ -81,4 +87,44 @@ public class SettingsHelper {
}
return entries;
}
public static JSONArray readJSON(Context context) {
JSONArray json = new JSONArray();
try {
byte[] data = readFully(new File(context.getFilesDir() + "/" + SETTINGS_FILE));
SecretKey key = EncryptionHelper.loadOrGenerateKeys(context, new File(context.getFilesDir() + "/" + KEY_FILE));
data = EncryptionHelper.decrypt(key, data);
json = new JSONArray(new String(data));
}
catch (Exception e) {
}
return json;
}
public static boolean exportAsJSON(Context context) {
File outputFile = new File(getExternalStorageDirectory() + "/" + EXPORT_FILE);
JSONArray data = readJSON(context);
boolean success = true;
try {
Writer output = new BufferedWriter(new FileWriter(outputFile));
output.write(data.toString());
output.close();
} catch (Exception e) {
success = false;
e.printStackTrace();
}
return success;
}
public static void importFromJSON(Context context) {
}
}

19
app/src/main/res/menu/menu_main.xml
View file

@ -1,6 +1,25 @@
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/submenu_backup"
android:title="@string/menu_submenu_backup">
<menu>
<item
android:id="@+id/action_export"
android:orderInCategory="100"
android:title="@string/menu_export"
app:showAsAction="never" />
<item
android:id="@+id/action_import"
android:orderInCategory="100"
android:title="@string/menu_import"
app:showAsAction="never" />
</menu>
</item>
<item
android:id="@+id/action_about"
android:orderInCategory="100"

10
app/src/main/res/values/strings.xml
View file

@ -6,6 +6,9 @@
<string name="menu_edit">Edit</string>
<string name="menu_scan">Scan QR Code</string>
<string name="menu_about">About</string>
<string name="menu_submenu_backup">Import / Export</string>
<string name="menu_export">Export as JSON</string>
<string name="menu_import">Import from JSON</string>
<string name="msg_invalid_qr_code">Invalid QR Code</string>
<string name="msg_account_added">Account added</string>
<string name="button_cancel">Cancel</string>
@ -17,6 +20,13 @@
<string name="alert_rename">Rename</string>
<string name="alert_remove">"Remove "</string>
<string name="msg_camera_permission">Camera permission not granted</string>
<string name="msg_storage_permissions">Storage permissions not granted</string>
<string name="msg_security_warning">Security warning</string>
<string name="msg_export_warning">
Do you really want to export the database as plain-text JSON file?
This file contains all your secret keys, please keep it safe!
</string>
<string name="msg_export_success">Export to external storage successful</string>
<!-- About dialog -->
<string name="about_description">An open-source two-factor authentication App for Android 4.3+</string>