212 lines
7.6 KiB
Java
212 lines
7.6 KiB
Java
/*
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* Copyright (C) 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;
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import android.app.Activity;
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import android.content.Context;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.text.Editable;
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import android.text.TextWatcher;
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import android.text.method.HideReturnsTransformationMethod;
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import android.text.method.PasswordTransformationMethod;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.inputmethod.InputMethodManager;
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import android.widget.CheckBox;
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import android.widget.CompoundButton;
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import android.widget.EditText;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.ui.CreateKeyActivity.FragAction;
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import org.sufficientlysecure.keychain.ui.widget.PassphraseEditText;
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import org.sufficientlysecure.keychain.util.Passphrase;
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public class CreateKeyPassphraseFragment extends Fragment {
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// view
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CreateKeyActivity mCreateKeyActivity;
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PassphraseEditText mPassphraseEdit;
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EditText mPassphraseEditAgain;
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CheckBox mShowPassphrase;
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View mBackButton;
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View mNextButton;
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/**
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* Creates new instance of this fragment
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*/
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public static CreateKeyPassphraseFragment newInstance() {
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CreateKeyPassphraseFragment frag = new CreateKeyPassphraseFragment();
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Bundle args = new Bundle();
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frag.setArguments(args);
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return frag;
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}
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/**
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* Checks if text of given EditText is not empty. If it is empty an error is
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* set and the EditText gets the focus.
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*
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* @param context
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* @param editText
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* @return true if EditText is not empty
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*/
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private static boolean isEditTextNotEmpty(Context context, EditText editText) {
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boolean output = true;
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if (editText.getText().length() == 0) {
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editText.setError(context.getString(R.string.create_key_empty));
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editText.requestFocus();
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output = false;
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} else {
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editText.setError(null);
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}
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return output;
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}
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private static boolean areEditTextsEqual(EditText editText1, EditText editText2) {
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Passphrase p1 = new Passphrase(editText1);
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Passphrase p2 = new Passphrase(editText2);
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return (p1.equals(p2));
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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View view = inflater.inflate(R.layout.create_key_passphrase_fragment, container, false);
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mPassphraseEdit = (PassphraseEditText) view.findViewById(R.id.create_key_passphrase);
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mPassphraseEditAgain = (EditText) view.findViewById(R.id.create_key_passphrase_again);
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mShowPassphrase = (CheckBox) view.findViewById(R.id.create_key_show_passphrase);
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mBackButton = view.findViewById(R.id.create_key_back_button);
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mNextButton = view.findViewById(R.id.create_key_next_button);
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// initial values
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// TODO: using String here is unsafe...
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if (mCreateKeyActivity.mPassphrase != null) {
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mPassphraseEdit.setText(mCreateKeyActivity.mPassphrase.toStringUnsafe());
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mPassphraseEditAgain.setText(mCreateKeyActivity.mPassphrase.toStringUnsafe());
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}
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mPassphraseEdit.requestFocus();
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mBackButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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back();
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}
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});
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mNextButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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nextClicked();
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}
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});
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mShowPassphrase.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
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@Override
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public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
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if (isChecked) {
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mPassphraseEdit.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
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mPassphraseEditAgain.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
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} else {
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mPassphraseEdit.setTransformationMethod(PasswordTransformationMethod.getInstance());
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mPassphraseEditAgain.setTransformationMethod(PasswordTransformationMethod.getInstance());
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}
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}
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});
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TextWatcher textWatcher = new TextWatcher() {
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {
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}
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@Override
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public void onTextChanged(CharSequence s, int start, int before, int count) {
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if (!isEditTextNotEmpty(getActivity(), mPassphraseEdit)) {
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mPassphraseEditAgain.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
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return;
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}
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if (areEditTextsEqual(mPassphraseEdit, mPassphraseEditAgain)) {
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mPassphraseEditAgain.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ic_stat_retyped_ok, 0);
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} else {
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mPassphraseEditAgain.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ic_stat_retyped_bad, 0);
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}
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}
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@Override
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public void afterTextChanged(Editable s) {
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}
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};
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mPassphraseEdit.addTextChangedListener(textWatcher);
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mPassphraseEditAgain.addTextChangedListener(textWatcher);
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return view;
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}
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@Override
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public void onAttach(Context context) {
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super.onAttach(context);
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mCreateKeyActivity = (CreateKeyActivity) getActivity();
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}
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private void back() {
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hideKeyboard();
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mCreateKeyActivity.loadFragment(null, FragAction.TO_LEFT);
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}
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private void nextClicked() {
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if (isEditTextNotEmpty(getActivity(), mPassphraseEdit)) {
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if (!areEditTextsEqual(mPassphraseEdit, mPassphraseEditAgain)) {
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mPassphraseEditAgain.setError(getActivity().getApplicationContext().getString(R.string.create_key_passphrases_not_equal));
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mPassphraseEditAgain.requestFocus();
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return;
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}
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mPassphraseEditAgain.setError(null);
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// save state
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mCreateKeyActivity.mPassphrase = new Passphrase(mPassphraseEdit);
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CreateKeyFinalFragment frag = CreateKeyFinalFragment.newInstance();
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hideKeyboard();
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mCreateKeyActivity.loadFragment(frag, FragAction.TO_RIGHT);
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}
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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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