393 lines
15 KiB
Java
393 lines
15 KiB
Java
/*
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* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui.dialog;
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import java.io.IOException;
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import java.net.MalformedURLException;
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import java.net.URI;
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import java.net.URISyntaxException;
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import android.app.Activity;
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import android.support.v7.app.AlertDialog;
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import android.app.Dialog;
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import android.app.ProgressDialog;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.net.Uri;
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import android.os.AsyncTask;
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import android.os.Bundle;
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import android.os.Message;
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import android.os.Messenger;
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import android.os.RemoteException;
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import android.support.annotation.NonNull;
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import android.support.v4.app.DialogFragment;
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import android.view.KeyEvent;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.inputmethod.EditorInfo;
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import android.view.inputmethod.InputMethodManager;
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import android.widget.Button;
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import android.widget.CheckBox;
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import android.widget.EditText;
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import android.widget.TextView;
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import android.widget.TextView.OnEditorActionListener;
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import com.squareup.okhttp.OkHttpClient;
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import com.squareup.okhttp.Request;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.keyimport.HkpKeyserver;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.Preferences;
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import org.sufficientlysecure.keychain.util.TlsHelper;
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import org.sufficientlysecure.keychain.util.orbot.OrbotHelper;
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import java.net.Proxy;
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public class AddEditKeyserverDialogFragment extends DialogFragment implements OnEditorActionListener {
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private static final String ARG_MESSENGER = "arg_messenger";
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private static final String ARG_ACTION = "arg_dialog_action";
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private static final String ARG_POSITION = "arg_position";
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private static final String ARG_KEYSERVER = "arg_keyserver";
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public static final int MESSAGE_OKAY = 1;
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public static final int MESSAGE_VERIFICATION_FAILED = 2;
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public static final String MESSAGE_KEYSERVER = "new_keyserver";
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public static final String MESSAGE_VERIFIED = "verified";
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public static final String MESSAGE_FAILURE_REASON = "failure_reason";
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public static final String MESSAGE_KEYSERVER_DELETED = "keyserver_deleted";
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public static final String MESSAGE_DIALOG_ACTION = "message_dialog_action";
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public static final String MESSAGE_EDIT_POSITION = "keyserver_edited_position";
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private Messenger mMessenger;
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private DialogAction mDialogAction;
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private int mPosition;
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private EditText mKeyserverEditText;
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private CheckBox mVerifyKeyserverCheckBox;
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public enum DialogAction {
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ADD,
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EDIT
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}
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public enum FailureReason {
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INVALID_URL,
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CONNECTION_FAILED
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}
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public static AddEditKeyserverDialogFragment newInstance(Messenger messenger,
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DialogAction action,
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String keyserver,
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int position) {
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AddEditKeyserverDialogFragment frag = new AddEditKeyserverDialogFragment();
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Bundle args = new Bundle();
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args.putParcelable(ARG_MESSENGER, messenger);
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args.putSerializable(ARG_ACTION, action);
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args.putString(ARG_KEYSERVER, keyserver);
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args.putInt(ARG_POSITION, position);
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frag.setArguments(args);
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return frag;
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}
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@NonNull
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@Override
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public Dialog onCreateDialog(Bundle savedInstanceState) {
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final Activity activity = getActivity();
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mMessenger = getArguments().getParcelable(ARG_MESSENGER);
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mDialogAction = (DialogAction) getArguments().getSerializable(ARG_ACTION);
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mPosition = getArguments().getInt(ARG_POSITION);
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CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(activity);
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LayoutInflater inflater = activity.getLayoutInflater();
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View view = inflater.inflate(R.layout.add_keyserver_dialog, null);
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alert.setView(view);
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mKeyserverEditText = (EditText) view.findViewById(R.id.keyserver_url_edit_text);
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mVerifyKeyserverCheckBox = (CheckBox) view.findViewById(R.id.verify_keyserver_checkbox);
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switch (mDialogAction) {
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case ADD: {
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alert.setTitle(R.string.add_keyserver_dialog_title);
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break;
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}
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case EDIT: {
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alert.setTitle(R.string.edit_keyserver_dialog_title);
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mKeyserverEditText.setText(getArguments().getString(ARG_KEYSERVER));
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break;
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}
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}
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// we don't want dialog to be dismissed on click for keyserver addition or edit,
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// thereby requiring the hack seen below and in onStart
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alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int id) {
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// we need to have an empty listener to prevent errors on some devices as mentioned
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// at http://stackoverflow.com/q/13746412/3000919
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// actual listener set in onStart for adding keyservers or editing them
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}
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});
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alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int id) {
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dismiss();
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}
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});
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switch (mDialogAction) {
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case EDIT: {
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alert.setNeutralButton(R.string.label_keyserver_dialog_delete,
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new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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deleteKeyserver(mPosition);
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}
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});
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break;
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}
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case ADD: {
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// do nothing
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break;
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}
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}
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// Hack to open keyboard.
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// This is the only method that I found to work across all Android versions
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// http://turbomanage.wordpress.com/2012/05/02/show-soft-keyboard-automatically-when-edittext-receives-focus/
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// Notes: * onCreateView can't be used because we want to add buttons to the dialog
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// * opening in onActivityCreated does not work on Android 4.4
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mKeyserverEditText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
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@Override
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public void onFocusChange(View v, boolean hasFocus) {
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mKeyserverEditText.post(new Runnable() {
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@Override
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public void run() {
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InputMethodManager imm = (InputMethodManager) getActivity()
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.getSystemService(Context.INPUT_METHOD_SERVICE);
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imm.showSoftInput(mKeyserverEditText, InputMethodManager.SHOW_IMPLICIT);
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}
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});
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}
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});
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mKeyserverEditText.requestFocus();
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mKeyserverEditText.setImeActionLabel(getString(android.R.string.ok),
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EditorInfo.IME_ACTION_DONE);
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mKeyserverEditText.setOnEditorActionListener(this);
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return alert.show();
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}
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@Override
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public void onStart() {
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super.onStart();
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AlertDialog addKeyserverDialog = (AlertDialog) getDialog();
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if (addKeyserverDialog != null) {
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Button positiveButton = addKeyserverDialog.getButton(Dialog.BUTTON_POSITIVE);
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positiveButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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// behaviour same for edit and add
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final String keyserverUrl = mKeyserverEditText.getText().toString();
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if (mVerifyKeyserverCheckBox.isChecked()) {
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final Preferences.ProxyPrefs proxyPrefs = Preferences.getPreferences(getActivity())
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.getProxyPrefs();
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Runnable ignoreTor = new Runnable() {
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@Override
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public void run() {
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verifyConnection(keyserverUrl, null);
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}
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};
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if (OrbotHelper.putOrbotInRequiredState(R.string.orbot_ignore_tor, ignoreTor, proxyPrefs,
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getActivity())) {
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verifyConnection(keyserverUrl, proxyPrefs.parcelableProxy.getProxy());
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}
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} else {
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dismiss();
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// return unverified keyserver back to activity
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keyserverEdited(keyserverUrl, false);
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}
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}
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});
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}
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}
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public void keyserverEdited(String keyserver, boolean verified) {
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dismiss();
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Bundle data = new Bundle();
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data.putSerializable(MESSAGE_DIALOG_ACTION, mDialogAction);
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data.putString(MESSAGE_KEYSERVER, keyserver);
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data.putBoolean(MESSAGE_VERIFIED, verified);
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if (mDialogAction == DialogAction.EDIT) {
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data.putInt(MESSAGE_EDIT_POSITION, mPosition);
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}
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sendMessageToHandler(MESSAGE_OKAY, data);
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}
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public void deleteKeyserver(int position) {
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dismiss();
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Bundle data = new Bundle();
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data.putSerializable(MESSAGE_DIALOG_ACTION, DialogAction.EDIT);
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data.putInt(MESSAGE_EDIT_POSITION, position);
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data.putBoolean(MESSAGE_KEYSERVER_DELETED, true);
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sendMessageToHandler(MESSAGE_OKAY, data);
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}
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public void verificationFailed(FailureReason reason) {
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Bundle data = new Bundle();
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data.putSerializable(MESSAGE_FAILURE_REASON, reason);
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sendMessageToHandler(MESSAGE_VERIFICATION_FAILED, data);
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}
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public void verifyConnection(String keyserver, final Proxy proxy) {
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new AsyncTask<String, Void, FailureReason>() {
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ProgressDialog mProgressDialog;
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String mKeyserver;
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@Override
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protected void onPreExecute() {
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mProgressDialog = new ProgressDialog(getActivity());
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mProgressDialog.setMessage(getString(R.string.progress_verifying_keyserver_url));
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mProgressDialog.setCancelable(false);
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mProgressDialog.show();
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}
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@Override
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protected FailureReason doInBackground(String... keyservers) {
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mKeyserver = keyservers[0];
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FailureReason reason = null;
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try {
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// replace hkps/hkp scheme and reconstruct Uri
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Uri keyserverUri = Uri.parse(mKeyserver);
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String scheme = keyserverUri.getScheme();
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String schemeSpecificPart = keyserverUri.getSchemeSpecificPart();
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String fragment = keyserverUri.getFragment();
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if (scheme == null) {
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throw new MalformedURLException();
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}
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if ("hkps".equalsIgnoreCase(scheme)) {
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scheme = "https";
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} else if ("hkp".equalsIgnoreCase(scheme)) {
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scheme = "http";
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}
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URI newKeyserver = new URI(scheme, schemeSpecificPart, fragment);
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Log.d("Converted URL", newKeyserver.toString());
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OkHttpClient client = HkpKeyserver.getClient(newKeyserver.toURL(), proxy);
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TlsHelper.pinCertificateIfNecessary(client, newKeyserver.toURL());
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client.newCall(new Request.Builder().url(newKeyserver.toURL()).build()).execute();
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} catch (TlsHelper.TlsHelperException e) {
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reason = FailureReason.CONNECTION_FAILED;
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} catch (MalformedURLException | URISyntaxException e) {
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Log.w(Constants.TAG, "Invalid keyserver URL entered by user.");
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reason = FailureReason.INVALID_URL;
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} catch (IOException e) {
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Log.w(Constants.TAG, "Could not connect to entered keyserver url");
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reason = FailureReason.CONNECTION_FAILED;
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}
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return reason;
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}
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@Override
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protected void onPostExecute(FailureReason failureReason) {
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mProgressDialog.dismiss();
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if (failureReason == null) {
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keyserverEdited(mKeyserver, true);
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} else {
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verificationFailed(failureReason);
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}
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}
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}.execute(keyserver);
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}
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@Override
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public void onDismiss(DialogInterface dialog) {
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super.onDismiss(dialog);
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// hide keyboard on dismiss
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hideKeyboard();
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}
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private void hideKeyboard() {
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if (getActivity() == null) {
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return;
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}
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InputMethodManager inputManager = (InputMethodManager) getActivity()
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.getSystemService(Context.INPUT_METHOD_SERVICE);
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//check if no view has focus:
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View v = getActivity().getCurrentFocus();
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if (v == null)
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return;
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inputManager.hideSoftInputFromWindow(v.getWindowToken(), 0);
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}
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/**
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* Associate the "done" button on the soft keyboard with the okay button in the view
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*/
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@Override
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public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
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if (EditorInfo.IME_ACTION_DONE == actionId) {
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AlertDialog dialog = ((AlertDialog) getDialog());
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Button bt = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
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bt.performClick();
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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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* Send message back to handler which is initialized in a activity
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*
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* @param what Message integer you want to send
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*/
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private void sendMessageToHandler(Integer what, Bundle data) {
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Message msg = Message.obtain();
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msg.what = what;
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if (data != null) {
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msg.setData(data);
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}
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try {
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mMessenger.send(msg);
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} catch (RemoteException e) {
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Log.w(Constants.TAG, "Exception sending message, Is handler present?", e);
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} catch (NullPointerException e) {
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Log.w(Constants.TAG, "Messenger is null!", e);
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}
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}
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}
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