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path: root/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java
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package eu.siacs.conversations.ui;

import java.security.KeyStoreException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Locale;

import de.tzur.conversations.Settings;
import de.duenndns.ssl.MemorizingTrustManager;

import eu.siacs.conversations.R;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.xmpp.XmppConnection;

import android.app.AlertDialog;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.os.Build;
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceManager;
import android.widget.Toast;

public class SettingsActivity extends XmppActivity implements
		OnSharedPreferenceChangeListener {
	private SettingsFragment mSettingsFragment;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		FragmentManager fm = getFragmentManager();
		mSettingsFragment = (SettingsFragment) fm.findFragmentById(android.R.id.content);
		if (mSettingsFragment == null || !mSettingsFragment.getClass().equals(SettingsFragment.class)) {
			mSettingsFragment = new SettingsFragment();
			fm.beginTransaction().replace(android.R.id.content, mSettingsFragment).commit();
		}
	}

	@Override
	void onBackendConnected() {

	}

	@Override
	public void onStart() {
		super.onStart();
		PreferenceManager.getDefaultSharedPreferences(this).registerOnSharedPreferenceChangeListener(this);
		ListPreference resources = (ListPreference) mSettingsFragment.findPreference("resource");
		if (resources != null) {
			ArrayList<CharSequence> entries = new ArrayList<>(Arrays.asList(resources.getEntries()));
			if (!entries.contains(Build.MODEL)) {
				entries.add(0, Build.MODEL);
				resources.setEntries(entries.toArray(new CharSequence[entries.size()]));
				resources.setEntryValues(entries.toArray(new CharSequence[entries.size()]));
			}
		}

		final Preference removeCertsPreference = mSettingsFragment.findPreference("remove_trusted_certificates");
		removeCertsPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
			@Override
			public boolean onPreferenceClick(Preference preference) {
				final MemorizingTrustManager mtm = xmppConnectionService.getMemorizingTrustManager();
				final ArrayList<String> aliases = Collections.list(mtm.getCertificates());
				if (aliases.size() == 0) {
					displayToast(getString(R.string.toast_no_trusted_certs));
					return true;
				}
				final ArrayList selectedItems = new ArrayList<Integer>();
				final AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(SettingsActivity.this);
				dialogBuilder.setTitle(getResources().getString(R.string.dialog_manage_certs_title));
				dialogBuilder.setMultiChoiceItems(aliases.toArray(new CharSequence[aliases.size()]), null,
						new DialogInterface.OnMultiChoiceClickListener() {
							@Override
							public void onClick(DialogInterface dialog, int indexSelected,
												boolean isChecked) {
								if (isChecked) {
									selectedItems.add(indexSelected);
								} else if (selectedItems.contains(indexSelected)) {
									selectedItems.remove(Integer.valueOf(indexSelected));
								}
								if (selectedItems.size() > 0)
									((AlertDialog) dialog).getButton(DialogInterface.BUTTON_POSITIVE).setEnabled(true);
								else {
									((AlertDialog) dialog).getButton(DialogInterface.BUTTON_POSITIVE).setEnabled(false);
								}
							}
						});

				dialogBuilder.setPositiveButton(
						getResources().getString(R.string.dialog_manage_certs_positivebutton), new DialogInterface.OnClickListener() {
							@Override
							public void onClick(DialogInterface dialog, int which) {
								int count = selectedItems.size();
								if (count > 0) {
									for (int i = 0; i < count; i++) {
										try {
											Integer item = Integer.valueOf(selectedItems.get(i).toString());
											String alias = aliases.get(item);
											mtm.deleteCertificate(alias);
										} catch (KeyStoreException e) {
											e.printStackTrace();
											displayToast("Error: " + e.getLocalizedMessage());
										}
									}
									if (xmppConnectionServiceBound) {
										reconnectAccounts();
									}
									displayToast(getResources().getQuantityString(R.plurals.toast_delete_certificates, count, count));
								}
							}
						});
				dialogBuilder.setNegativeButton(getResources().getString(R.string.dialog_manage_certs_negativebutton), null);
				AlertDialog removeCertsDialog = dialogBuilder.create();
				removeCertsDialog.show();
				removeCertsDialog.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
				return true;
			}
		});
	}

	@Override
	public void onStop() {
		super.onStop();
		PreferenceManager.getDefaultSharedPreferences(this)
				.unregisterOnSharedPreferenceChangeListener(this);
	}

	@Override
	public void onSharedPreferenceChanged(SharedPreferences preferences,
			String name) {
        // need to synchronize the settings class first
        Settings.synchronizeSettingsClassWithPreferences(getPreferences(), name);
        switch (name) {
            case "resource":
                String resource = preferences.getString("resource", "mobile")
                        .toLowerCase(Locale.US);
                if (xmppConnectionServiceBound) {
                    for (Account account : xmppConnectionService.getAccounts()) {
                        account.setResource(resource);
                        if (!account.isOptionSet(Account.OPTION_DISABLED)) {
                            XmppConnection connection = account.getXmppConnection();
							if (connection != null) {
								connection.resetStreamId();
							}
                            xmppConnectionService.reconnectAccountInBackground(account);
                        }
                    }
                }
                break;
            case "keep_foreground_service":
                xmppConnectionService.toggleForegroundService();
                break;
			case "confirm_messages":
				if (xmppConnectionServiceBound) {
					for (Account account : xmppConnectionService.getAccounts()) {
						if (!account.isOptionSet(Account.OPTION_DISABLED)) {
							xmppConnectionService.sendPresence(account);
						}
					}
				}
				break;
            case "dont_trust_system_cas":
                xmppConnectionService.updateMemorizingTrustmanager();
			    reconnectAccounts();
                break;
        }

	private void displayToast(final String msg) {
		runOnUiThread(new Runnable() {
			@Override
			public void run() {
				Toast.makeText(SettingsActivity.this, msg, Toast.LENGTH_LONG).show();
			}
		});
	}

	private void reconnectAccounts() {
		for (Account account : xmppConnectionService.getAccounts()) {
			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
				xmppConnectionService.reconnectAccountInBackground(account);
			}
		}
	}
	}

}