VpnService: Use a string to remember the primary config

This allows simplifies the code a bit. Also, a few other minor changes.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Samuel Holland 2017-08-17 04:50:41 -05:00
parent c2189a78b9
commit 27241d074e

View File

@ -3,7 +3,6 @@ package com.wireguard.android;
import android.app.Service;
import android.content.Intent;
import android.content.SharedPreferences;
import android.databinding.ObservableArrayMap;
import android.os.AsyncTask;
import android.os.Binder;
import android.os.IBinder;
@ -29,9 +28,9 @@ import java.util.Set;
public class VpnService extends Service
implements SharedPreferences.OnSharedPreferenceChangeListener {
private static final String KEY_ENABLED_CONFIGS = "enabled_configs";
private static final String KEY_PRIMARY_CONFIG = "primary_config";
private static final String KEY_RESTORE_ON_BOOT = "restore_on_boot";
public static final String KEY_ENABLED_CONFIGS = "enabled_configs";
public static final String KEY_PRIMARY_CONFIG = "primary_config";
public static final String KEY_RESTORE_ON_BOOT = "restore_on_boot";
private static final String TAG = "VpnService";
private static VpnService instance;
@ -44,7 +43,7 @@ public class VpnService extends Service
private final ObservableTreeMap<String, Config> configurations = new ObservableTreeMap<>();
private final Set<String> enabledConfigs = new HashSet<>();
private SharedPreferences preferences;
private Config primaryConfig;
private String primaryName;
private RootShell rootShell;
/**
@ -128,22 +127,30 @@ public class VpnService extends Service
preferences.registerOnSharedPreferenceChangeListener(this);
}
@Override
public void onDestroy() {
preferences.unregisterOnSharedPreferenceChangeListener(this);
}
@Override
public void onSharedPreferenceChanged(final SharedPreferences preferences,
final String key) {
Log.i(TAG, "Preference change trigger!");
if (!KEY_PRIMARY_CONFIG.equals(key))
return;
final String name = preferences.getString(key, null);
if (primaryConfig != null && !primaryConfig.getName().equals(name)) {
primaryConfig.setIsPrimary(false);
primaryConfig = null;
final String newName = preferences.getString(key, null);
if (primaryName != null && !primaryName.equals(newName)) {
final Config oldConfig = configurations.get(primaryName);
if (oldConfig != null)
oldConfig.setIsPrimary(false);
}
if (primaryConfig == null && name != null) {
primaryConfig = configurations.get(name);
if (primaryConfig != null)
primaryConfig.setIsPrimary(true);
if (newName != null && !newName.equals(primaryName)) {
final Config newConfig = configurations.get(newName);
if (newConfig != null)
newConfig.setIsPrimary(true);
else
preferences.edit().remove(KEY_PRIMARY_CONFIG).apply();
}
primaryName = newName;
}
@Override
@ -279,12 +286,8 @@ public class VpnService extends Service
return;
for (final Config config : configs)
configurations.put(config.getName(), config);
final String primaryName = preferences.getString(KEY_PRIMARY_CONFIG, null);
if (primaryName != null) {
primaryConfig = configurations.get(primaryName);
if (primaryConfig != null)
primaryConfig.setIsPrimary(true);
}
// Run the handler to avoid duplicating the code here.
onSharedPreferenceChanged(preferences, KEY_PRIMARY_CONFIG);
if (preferences.getBoolean(KEY_RESTORE_ON_BOOT, false)) {
final Set<String> configsToEnable =
preferences.getStringSet(KEY_ENABLED_CONFIGS, null);
@ -323,9 +326,10 @@ public class VpnService extends Service
if (!result)
return;
configurations.remove(config.getName());
if (config.getName().equals(primaryName)) {
// This will get picked up by the preference change listener.
if (primaryConfig == config)
preferences.edit().putString(KEY_PRIMARY_CONFIG, null).apply();
preferences.edit().remove(KEY_PRIMARY_CONFIG).apply();
}
}
}
@ -391,6 +395,8 @@ public class VpnService extends Service
}
newConfig.setIsEnabled(false);
configurations.put(newName, newConfig);
if (isRename() && oldName.equals(primaryName))
preferences.edit().putString(KEY_PRIMARY_CONFIG, newName).apply();
if (shouldConnect)
new ConfigEnabler(newConfig).execute();
}