Support for runtime permissios, to read/write local storage for settings/torrents. Fixes #258.

app/build.gradle

@@ -28,7 +28,7 @@ android {
         }
     }
     lintOptions {
-        disable 'MissingTranslation', 'ExtraTranslation'
+        disable 'MissingTranslation', 'ExtraTranslation', 'StringFormatInvalid'
     }
 }
 

app/src/main/java/org/transdroid/core/app/settings/SettingsPersistence.java

@@ -134,9 +134,9 @@ public class SettingsPersistence {
 				if (server.has("new_torrent_alarm"))
 					editor.putBoolean("server_alarmnew_" + postfix, server.getBoolean("new_torrent_alarm"));
 				if (server.has("alarm_filter_exclude"))
-					editor.putBoolean("server_alarmexclude_" + postfix, server.getBoolean("alarm_filter_exclude"));
+					editor.putString("server_alarmexclude_" + postfix, server.getString("alarm_filter_exclude"));
 				if (server.has("alarm_filter_include"))
-					editor.putBoolean("server_alarminclude_" + postfix, server.getBoolean("alarm_filter_include"));
+					editor.putString("server_alarminclude_" + postfix, server.getString("alarm_filter_include"));
 
 			}
 		}
@@ -174,11 +174,13 @@ public class SettingsPersistence {
 				if (feed.has("new_item_alarm"))
 					editor.putBoolean("rssfeed_alarmnew_" + postfix, feed.getBoolean("new_item_alarm"));
 				if (feed.has("alarm_filter_include"))
-					editor.putBoolean("rssfeed_alarminclude_" + postfix, feed.getBoolean("alarm_filter_include"));
+					editor.putString("rssfeed_include_" + postfix, feed.getString("alarm_filter_include"));
 				if (feed.has("alarm_filter_exclude"))
-					editor.putBoolean("rssfeed_alarmexclude_" + postfix, feed.getBoolean("alarm_filter_exclude"));
-				if (feed.has("last_seen"))
-					editor.putString("rssfeed_lastnew_" + postfix, feed.getString("last_seen"));
+					editor.putString("rssfeed_exclude_" + postfix, feed.getString("alarm_filter_exclude"));
+				if (feed.has("last_seen_time"))
+					editor.putLong("rssfeed_lastviewed_" + postfix, feed.getLong("last_seen_time"));
+				if (feed.has("last_seen_item"))
+					editor.putString("rssfeed_lastvieweditemurl_" + postfix, feed.getString("last_seen_item"));
 
 			}
 		}
@@ -280,8 +282,8 @@ public class SettingsPersistence {
 			server.put("server_timeout", prefs.getString("server_timeout_" + postfixi, null));
 			server.put("download_alarm", prefs.getBoolean("server_alarmfinished_" + postfixi, false));
 			server.put("new_torrent_alarm", prefs.getBoolean("server_alarmnew_" + postfixi, false));
-			server.put("alarm_filter_exclude", prefs.getBoolean("server_alarmexclude_" + postfixi, false));
-			server.put("alarm_filter_include", prefs.getBoolean("server_alarminclude_" + postfixi, false));
+			server.put("alarm_filter_exclude", prefs.getString("server_alarmexclude_" + postfixi, null));
+			server.put("alarm_filter_include", prefs.getString("server_alarminclude_" + postfixi, null));
 
 			servers.put(server);
 			i++;
@@ -317,9 +319,10 @@ public class SettingsPersistence {
 			feed.put("url", prefs.getString("rssfeed_url_" + postfixk, null));
 			feed.put("needs_auth", prefs.getBoolean("rssfeed_reqauth_" + postfixk, false));
 			feed.put("new_item_alarm", prefs.getBoolean("rssfeed_alarmnew_" + postfixk, false));
-			feed.put("alarm_filter_exclude", prefs.getBoolean("server_alarmexclude_" + postfixk, false));
-			feed.put("alarm_filter_include", prefs.getBoolean("server_alarminclude_" + postfixk, false));
-			feed.put("last_seen", prefs.getString("rssfeed_lastnew_" + postfixk, null));
+			feed.put("alarm_filter_exclude", prefs.getString("server_alarmexclude_" + postfixk, null));
+			feed.put("alarm_filter_include", prefs.getString("server_alarminclude_" + postfixk, null));
+			feed.put("last_seen_time", prefs.getLong("rssfeed_lastviewed_" + postfixk, -1));
+			feed.put("last_seen_item", prefs.getString("rssfeed_lastvieweditemurl_" + postfixk, null));
 
 			feeds.put(feed);
 			k++;

app/src/main/java/org/transdroid/core/gui/TorrentsActivity.java

@@ -24,6 +24,7 @@ import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 import android.support.v4.view.MenuItemCompat;
 import android.support.v4.widget.DrawerLayout;
 import android.support.v7.app.ActionBarDrawerToggle;
@@ -215,6 +216,9 @@ public class TorrentsActivity extends AppCompatActivity implements TorrentTasksE
 	// Auto refresh task
 	private AsyncTask<Void, Void, Void> autoRefreshTask;
 
+	private String awaitingAddLocalFile;
+	private String awaitingAddTitle;
+
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
 		// Set the theme according to the user preference
@@ -739,6 +743,14 @@ public class TorrentsActivity extends AppCompatActivity implements TorrentTasksE
 		return true;
 	}
 
+	@Override
+	public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+		if (awaitingAddLocalFile != null && awaitingAddTitle != null &&
+				Boolean.TRUE.equals(navigationHelper.handleTorrentReadPermissionResult(requestCode, grantResults))) {
+			addTorrentByFile(awaitingAddLocalFile, awaitingAddTitle);
+		}
+	}
+
 	@Click(R.id.addmenu_link_button)
 	protected void startUrlEntryDialog() {
 		addmenuButton.collapse();
@@ -1043,6 +1055,12 @@ public class TorrentsActivity extends AppCompatActivity implements TorrentTasksE
 
 	@Background
 	protected void addTorrentByFile(String localFile, String title) {
+		if (!navigationHelper.checkTorrentReadPermission(this)) {
+			// No read permission yet (which we get the result of in onRequestPermissionsResult)
+			awaitingAddLocalFile = localFile;
+			awaitingAddTitle = title;
+			return;
+		}
 		DaemonTaskResult result = AddByFileTask.create(currentConnection, localFile).execute(log);
 		if (result instanceof DaemonTaskSuccessResult) {
 			onTaskSucceeded((DaemonTaskSuccessResult) result, getString(R.string.result_added, title));

app/src/main/java/org/transdroid/core/gui/navigation/NavigationHelper.java

@@ -16,15 +16,25 @@
  */
 package org.transdroid.core.gui.navigation;
 
+import android.Manifest;
 import android.annotation.SuppressLint;
+import android.annotation.TargetApi;
+import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.net.Uri;
+import android.os.Build;
+import android.support.annotation.NonNull;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
 import android.text.Spannable;
 import android.text.SpannableString;
 import android.text.style.TypefaceSpan;
 
+import com.afollestad.materialdialogs.DialogAction;
+import com.afollestad.materialdialogs.MaterialDialog;
 import com.nostra13.universalimageloader.cache.disc.impl.ext.LruDiskCache;
 import com.nostra13.universalimageloader.cache.disc.naming.Md5FileNameGenerator;
 import com.nostra13.universalimageloader.cache.memory.impl.UsingFreqLimitedMemoryCache;
@@ -50,10 +60,80 @@ import java.util.List;
 @EBean
 public class NavigationHelper {
 
+	private static final int REQUEST_TORRENT_READ_PERMISSION = 0;
+	private static final int REQUEST_SETTINGS_READ_PERMISSION = 1;
+	private static final int REQUEST_SETTINGS_WRITE_PERMISSION = 2;
+
 	private static ImageLoader imageCache;
 	@RootContext
 	protected Context context;
 
+	@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
+	public boolean checkTorrentReadPermission(final Activity activity) {
+		return Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT ||
+				checkPermission(activity, Manifest.permission.READ_EXTERNAL_STORAGE, REQUEST_TORRENT_READ_PERMISSION);
+	}
+
+	@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
+	public boolean checkSettingsReadPermission(final Activity activity) {
+		return Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT ||
+				checkPermission(activity, Manifest.permission.READ_EXTERNAL_STORAGE, REQUEST_SETTINGS_READ_PERMISSION);
+	}
+
+	@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
+	public boolean checkSettingsWritePermission(final Activity activity) {
+		return Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT ||
+				checkPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE, REQUEST_SETTINGS_WRITE_PERMISSION);
+	}
+
+	private boolean checkPermission(final Activity activity, final String permission, final int requestCode) {
+		if (hasPermission(permission))
+			// Permission already granted
+			return true;
+		if (!ActivityCompat.shouldShowRequestPermissionRationale(activity, permission)) {
+			// Never asked again: show a dialog with an explanation
+			new MaterialDialog.Builder(context).content(R.string.permission_readtorrent).positiveText(android.R.string.ok)
+					.onPositive(new MaterialDialog.SingleButtonCallback() {
+						@Override
+						public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
+							ActivityCompat.requestPermissions(activity, new String[]{permission}, requestCode);
+						}
+					}).show();
+			return false;
+		}
+		// Permission not granted (and we asked for it already before)
+		ActivityCompat.requestPermissions(activity, new String[]{permission}, REQUEST_TORRENT_READ_PERMISSION);
+		return false;
+	}
+
+	private boolean hasPermission(String requiredPermission) {
+		return ContextCompat.checkSelfPermission(context, requiredPermission) == PackageManager.PERMISSION_GRANTED;
+	}
+
+	public Boolean handleTorrentReadPermissionResult(int requestCode, int[] grantResults) {
+		if (requestCode == REQUEST_TORRENT_READ_PERMISSION) {
+			// Return permission granting result
+			return grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED;
+		}
+		return null;
+	}
+
+	public Boolean handleSettingsReadPermissionResult(int requestCode, int[] grantResults) {
+		if (requestCode == REQUEST_SETTINGS_READ_PERMISSION) {
+			// Return permission granting result
+			return grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED;
+		}
+		return null;
+	}
+
+	public Boolean handleSettingsWritePermissionResult(int requestCode, int[] grantResults) {
+		if (requestCode == REQUEST_SETTINGS_WRITE_PERMISSION) {
+			// Return permission granting result
+			return grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED;
+		}
+		return null;
+	}
+
 	/**
 	 * Converts a string into a {@link Spannable} that displays the string in the Roboto Condensed font
 	 * @param string A plain text {@link String}

app/src/main/java/org/transdroid/core/gui/settings/SystemSettingsActivity.java

@@ -28,8 +28,8 @@ import android.os.Bundle;
 import android.preference.CheckBoxPreference;
 import android.preference.Preference;
 import android.preference.Preference.OnPreferenceClickListener;
-import android.preference.PreferenceActivity;
 import android.preference.PreferenceManager;
+import android.support.annotation.NonNull;
 import android.text.TextUtils;
 
 import com.nispok.snackbar.Snackbar;
@@ -81,6 +81,7 @@ public class SystemSettingsActivity extends PreferenceCompatActivity {
 	protected ErrorLogSender errorLogSender;
 	@Bean
 	protected SettingsPersistence settingsPersistence;
+
 	private OnPreferenceClickListener onCheckUpdatesClick = new OnPreferenceClickListener() {
 		@Override
 		public boolean onPreferenceClick(Preference preference) {
@@ -103,19 +104,12 @@ public class SystemSettingsActivity extends PreferenceCompatActivity {
 	private OnClickListener importSettingsFromFile = new OnClickListener() {
 		@Override
 		public void onClick(DialogInterface dialog, int which) {
-			SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(SystemSettingsActivity.this);
-			try {
-				settingsPersistence.importSettingsFromFile(prefs, SettingsPersistence.DEFAULT_SETTINGS_FILE);
-				SnackbarManager.show(Snackbar.with(SystemSettingsActivity.this).text(R.string.pref_import_success));
-			} catch (FileNotFoundException e) {
-				SnackbarManager
-						.show(Snackbar.with(SystemSettingsActivity.this).text(R.string.error_file_not_found).colorResource(R.color.red));
-			} catch (JSONException e) {
-				SnackbarManager.show(Snackbar.with(SystemSettingsActivity.this)
-						.text(getString(R.string.error_no_valid_settings_file, getString(R.string.app_name))).colorResource(R.color.red));
-			}
+			if (!navigationHelper.checkSettingsReadPermission(SystemSettingsActivity.this))
+				return; // We are requesting permission to access file storage
+			importSettingsFromFile();
 		}
 	};
+
 	private OnClickListener importSettingsFromQr = new OnClickListener() {
 		@Override
 		public void onClick(DialogInterface dialog, int which) {
@@ -125,16 +119,12 @@ public class SystemSettingsActivity extends PreferenceCompatActivity {
 	private OnClickListener exportSettingsToFile = new OnClickListener() {
 		@Override
 		public void onClick(DialogInterface dialog, int which) {
-			SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(SystemSettingsActivity.this);
-			try {
-				settingsPersistence.exportSettingsToFile(prefs, SettingsPersistence.DEFAULT_SETTINGS_FILE);
-				SnackbarManager.show(Snackbar.with(SystemSettingsActivity.this).text(R.string.pref_export_success));
-			} catch (JSONException | IOException e) {
-				SnackbarManager.show(Snackbar.with(SystemSettingsActivity.this).text(R.string.error_cant_write_settings_file)
-						.colorResource(R.color.red));
-			}
+			if (!navigationHelper.checkSettingsWritePermission(SystemSettingsActivity.this))
+				return; // We are requesting permission to access file storage
+			exportSettingsToFile();
 		}
 	};
+
 	private OnClickListener exportSettingsToQr = new OnClickListener() {
 		@Override
 		public void onClick(DialogInterface dialog, int which) {
@@ -176,8 +166,42 @@ public class SystemSettingsActivity extends PreferenceCompatActivity {
 		MainSettingsActivity_.intent(this).flags(Intent.FLAG_ACTIVITY_CLEAR_TOP).start();
 	}
 
+	@Override
+	public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+		if (Boolean.TRUE.equals(navigationHelper.handleSettingsReadPermissionResult(requestCode, grantResults))) {
+			importSettingsFromFile();
+		} else if (Boolean.TRUE.equals(navigationHelper.handleSettingsWritePermissionResult(requestCode, grantResults))) {
+			exportSettingsToFile();
+		}
+	}
+
+	private void importSettingsFromFile() {
+		SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(SystemSettingsActivity.this);
+		try {
+			settingsPersistence.importSettingsFromFile(prefs, SettingsPersistence.DEFAULT_SETTINGS_FILE);
+			SnackbarManager.show(Snackbar.with(SystemSettingsActivity.this).text(R.string.pref_import_success));
+		} catch (FileNotFoundException e) {
+			SnackbarManager
+					.show(Snackbar.with(SystemSettingsActivity.this).text(R.string.error_file_not_found).colorResource(R.color.red));
+		} catch (JSONException e) {
+			SnackbarManager.show(Snackbar.with(SystemSettingsActivity.this)
+					.text(getString(R.string.error_no_valid_settings_file, getString(R.string.app_name))).colorResource(R.color.red));
+		}
+	}
+
+	private void exportSettingsToFile() {
+		SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(SystemSettingsActivity.this);
+		try {
+			settingsPersistence.exportSettingsToFile(prefs, SettingsPersistence.DEFAULT_SETTINGS_FILE);
+			SnackbarManager.show(Snackbar.with(SystemSettingsActivity.this).text(R.string.pref_export_success));
+		} catch (JSONException | IOException e) {
+			SnackbarManager.show(Snackbar.with(SystemSettingsActivity.this).text(R.string.error_cant_write_settings_file)
+					.colorResource(R.color.red));
+		}
+	}
+
 	@OnActivityResult(BarcodeHelper.ACTIVITY_BARCODE_QRSETTINGS)
-	public void onQrCodeScanned(int resultCode, Intent data) {
+	public void onQrCodeScanned(@SuppressWarnings("UnusedParameters") int resultCode, Intent data) {
 		// We should have received Intent extras with the QR-decoded data representing Transdroid settings
 		if (data == null || !data.hasExtra("SCAN_RESULT"))
 			return; // Cancelled scan; ignore

app/src/main/res/values/strings.xml

@@ -435,7 +435,11 @@
 		<item>43200</item>
 		<item>86400</item>
 	</string-array>
-	
+
+	<string name="permission_readtorrent">Transdroid requires read access to your file storage in order to read local .torrent files</string>
+	<string name="permission_readsettings">Transdroid requires read access to your file storage if you want to read from a local settings file</string>
+	<string name="permission_writesettings">Transdroid requires write access to your file storage to write the local settings file</string>
+
 	<string name="error_httperror">Error during communication; check your connection</string>
 	<string name="error_unsupported">Your torrent client does not support this operation</string>
 	<string name="error_jsonrequesterror">Internal error building request</string>

build.gradle

@@ -3,7 +3,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.3.0'
+        classpath 'com.android.tools.build:gradle:2.0.0-alpha5'
         classpath 'com.neenbedankt.gradle.plugins:android-apt:1.4'
     }
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Tue Dec 09 09:45:38 CET 2014
+#Wed Jan 20 12:20:00 CET 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.8-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip