428 lines
16 KiB
Java
428 lines
16 KiB
Java
/*
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* Copyright (C) 2017 Schürmann & Breitmoser GbR
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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.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.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.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 androidx.annotation.NonNull;
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import androidx.appcompat.app.AlertDialog;
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import androidx.fragment.app.DialogFragment;
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import com.google.android.material.textfield.TextInputLayout;
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import okhttp3.OkHttpClient;
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import okhttp3.Request;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.keyimport.HkpKeyserverAddress;
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import org.sufficientlysecure.keychain.network.OkHttpClientFactory;
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import org.sufficientlysecure.keychain.network.orbot.OrbotHelper;
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import org.sufficientlysecure.keychain.util.ParcelableProxy;
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import org.sufficientlysecure.keychain.util.Preferences;
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import timber.log.Timber;
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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 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_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 TextInputLayout mKeyserverEditTextLayout;
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private EditText mKeyserverEditOnionText;
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private TextInputLayout mKeyserverEditOnionTextLayout;
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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 VerifyReturn {
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INVALID_URL,
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CONNECTION_FAILED,
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NO_PINNED_CERTIFICATE,
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GOOD
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}
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public static AddEditKeyserverDialogFragment newInstance(Messenger messenger,
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DialogAction action,
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HkpKeyserverAddress 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.putParcelable(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 = view.findViewById(R.id.keyserver_url_edit_text);
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mKeyserverEditTextLayout = view.findViewById(R.id.keyserver_url_edit_text_layout);
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mKeyserverEditOnionText = view.findViewById(R.id.keyserver_onion_edit_text);
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mKeyserverEditOnionTextLayout = view.findViewById(R.id.keyserver_onion_edit_text_layout);
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mVerifyKeyserverCheckBox = view.findViewById(R.id.verify_connection_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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HkpKeyserverAddress keyserver = getArguments().getParcelable(ARG_KEYSERVER);
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mKeyserverEditText.setText(keyserver.getUrl());
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mKeyserverEditOnionText.setText(keyserver.getOnion());
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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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mKeyserverEditTextLayout.setErrorEnabled(false);
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mKeyserverEditOnionTextLayout.setErrorEnabled(false);
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// behaviour same for edit and add
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String keyserverUrl = mKeyserverEditText.getText().toString();
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String keyserverOnion = mKeyserverEditOnionText.getText() == null ? null
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: mKeyserverEditOnionText.getText().toString();
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final HkpKeyserverAddress keyserver =
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HkpKeyserverAddress.createWithOnionProxy(keyserverUrl, keyserverOnion);
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if (mVerifyKeyserverCheckBox.isChecked()) {
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final ParcelableProxy proxy = Preferences.getPreferences(getActivity())
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.getParcelableProxy();
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OrbotHelper.DialogActions dialogActions = new OrbotHelper.DialogActions() {
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@Override
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public void onOrbotStarted() {
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verifyConnection(keyserver, proxy);
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}
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@Override
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public void onNeutralButton() {
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verifyConnection(keyserver, null);
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}
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@Override
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public void onCancel() {
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// do nothing
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}
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};
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if (OrbotHelper.putOrbotInRequiredState(dialogActions, getActivity())) {
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verifyConnection(keyserver, proxy);
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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(keyserver, 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(HkpKeyserverAddress 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.putParcelable(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(VerifyReturn verifyReturn) {
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switch (verifyReturn) {
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case CONNECTION_FAILED: {
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mKeyserverEditTextLayout.setError(
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getString(R.string.add_keyserver_connection_failed));
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break;
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}
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case INVALID_URL: {
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mKeyserverEditTextLayout.setError(
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getString(R.string.add_keyserver_invalid_url));
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break;
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}
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case NO_PINNED_CERTIFICATE: {
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mKeyserverEditTextLayout.setError(
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getString(R.string.add_keyserver_keyserver_not_trusted));
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break;
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}
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}
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}
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public void verifyConnection(HkpKeyserverAddress keyserver, ParcelableProxy proxy) {
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new AsyncTask<HkpKeyserverAddress, Void, VerifyReturn>() {
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ProgressDialog mProgressDialog;
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HkpKeyserverAddress 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_connection));
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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 VerifyReturn doInBackground(HkpKeyserverAddress... keyservers) {
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mKeyserver = keyservers[0];
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return verifyKeyserver(mKeyserver, proxy);
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}
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@Override
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protected void onPostExecute(VerifyReturn verifyReturn) {
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mProgressDialog.dismiss();
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if (verifyReturn == VerifyReturn.GOOD) {
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keyserverEdited(mKeyserver, true);
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} else {
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verificationFailed(verifyReturn);
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}
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}
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}.execute(keyserver);
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}
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private VerifyReturn verifyKeyserver(HkpKeyserverAddress keyserver, ParcelableProxy proxy) {
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VerifyReturn reason = VerifyReturn.GOOD;
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try {
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URI keyserverUriHttp = keyserver.getUrlURI();
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OkHttpClient client = OkHttpClientFactory.getClientPinnedIfAvailable(
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keyserverUriHttp.toURL(), proxy.getProxy());
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client.newCall(new Request.Builder().url(keyserverUriHttp.toURL()).build()).execute();
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// try out onion keyserver if Tor is enabled
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if (proxy.isTorEnabled()) {
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URI keyserverUriOnion = keyserver.getOnionURI();
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OkHttpClient clientTor = OkHttpClientFactory.getClientPinnedIfAvailable(
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keyserverUriOnion.toURL(), proxy.getProxy());
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clientTor.newCall(new Request.Builder().url(keyserverUriOnion.toURL()).build()).execute();
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}
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} catch (MalformedURLException | URISyntaxException e) {
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Timber.w("Invalid keyserver URL entered by user.");
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reason = VerifyReturn.INVALID_URL;
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} catch (IOException e) {
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Timber.w("Could not connect to entered keyserver url");
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reason = VerifyReturn.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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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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Timber.w(e, "Exception sending message, Is handler present?");
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} catch (NullPointerException e) {
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Timber.w(e, "Messenger is null!");
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}
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}
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}
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