Check if the external storage is accessible before writing
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parent
afd96e6242
commit
3d18fde9cf
3 changed files with 57 additions and 3 deletions
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@ -106,10 +106,16 @@ public class MainActivity extends AppCompatActivity {
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}
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private void doExportJSON() {
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if (StorageHelper.isExternalStorageWritable()) {
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boolean success = SettingsHelper.exportAsJSON(this);
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if (success)
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showSimpleSnackbar(R.string.msg_export_success);
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else
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showSimpleSnackbar(R.string.msg_export_failed);
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} else {
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showSimpleSnackbar(R.string.msg_storage_not_accessible);
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}
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}
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private void exportJSON() {
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@ -0,0 +1,46 @@
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/*
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* Copyright (C) 2017 Jakob Nixdorf
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package org.shadowice.flocke.andotp;
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import android.os.Environment;
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public class StorageHelper {
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/* Checks if external storage is available for read and write */
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public static boolean isExternalStorageWritable() {
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String state = Environment.getExternalStorageState();
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if (Environment.MEDIA_MOUNTED.equals(state)) {
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return true;
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}
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return false;
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}
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/* Checks if external storage is available to at least read */
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public static boolean isExternalStorageReadable() {
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String state = Environment.getExternalStorageState();
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if (Environment.MEDIA_MOUNTED.equals(state) ||
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Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
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return true;
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}
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return false;
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}
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}
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@ -27,6 +27,8 @@
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This file contains all your secret keys, please keep it safe!
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</string>
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<string name="msg_export_success">Export to external storage successful</string>
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<string name="msg_export_failed">Export to external storage failed</string>
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<string name="msg_storage_not_accessible">External storage currently not accessible</string>
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<!-- About dialog -->
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<string name="about_description">An open-source two-factor authentication App for Android 4.3+</string>
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