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path: root/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyFragment.java
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/*
 * Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de>
 * Copyright (C) 2014 Vincent Breitmoser <v.breitmoser@mugenguild.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.sufficientlysecure.keychain.ui;

import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.graphics.PorterDuff;
import android.net.Uri;
import android.os.Bundle;
import android.os.Parcel;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.ListView;

import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.operations.results.CertifyResult;
import org.sufficientlysecure.keychain.operations.results.OperationResult;
import org.sufficientlysecure.keychain.pgp.KeyRing;
import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets;
import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.service.CertifyActionsParcel;
import org.sufficientlysecure.keychain.service.CertifyActionsParcel.CertifyAction;
import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
import org.sufficientlysecure.keychain.ui.adapter.MultiUserIdsAdapter;
import org.sufficientlysecure.keychain.ui.base.CachingCryptoOperationFragment;
import org.sufficientlysecure.keychain.ui.util.Notify;
import org.sufficientlysecure.keychain.ui.util.FormattingUtils;
import org.sufficientlysecure.keychain.ui.widget.CertifyKeySpinner;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.util.Preferences;

import java.util.ArrayList;
import java.util.Date;

public class CertifyKeyFragment
        extends CachingCryptoOperationFragment<CertifyActionsParcel, CertifyResult> {

    private CheckBox mUploadKeyCheckbox;

    private CertifyKeySpinner mCertifyKeySpinner;

    private MultiUserIdsFragment mMultiUserIdsFragment;

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        if (savedInstanceState == null) {
            // preselect certify key id if given
            long certifyKeyId = getActivity().getIntent()
                    .getLongExtra(CertifyKeyActivity.EXTRA_CERTIFY_KEY_ID, Constants.key.none);
            if (certifyKeyId != Constants.key.none) {
                try {
                    CachedPublicKeyRing key = (new ProviderHelper(getActivity()))
                            .getCachedPublicKeyRing(certifyKeyId);
                    if (key.canCertify()) {
                        mCertifyKeySpinner.setPreSelectedKeyId(certifyKeyId);
                    }
                } catch (PgpKeyNotFoundException e) {
                    Log.e(Constants.TAG, "certify certify check failed", e);
                }
            }
        }

        OperationResult result = getActivity().getIntent().getParcelableExtra(CertifyKeyActivity.EXTRA_RESULT);
        if (result != null) {
            // display result from import
            result.createNotify(getActivity()).show();
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.certify_key_fragment, null);

        mCertifyKeySpinner = (CertifyKeySpinner) view.findViewById(R.id.certify_key_spinner);
        mUploadKeyCheckbox = (CheckBox) view.findViewById(R.id.sign_key_upload_checkbox);
        mMultiUserIdsFragment = (MultiUserIdsFragment)
                getChildFragmentManager().findFragmentById(R.id.multi_user_ids_fragment);

        // make certify image gray, like action icons
        ImageView vActionCertifyImage =
                (ImageView) view.findViewById(R.id.certify_key_action_certify_image);
        vActionCertifyImage.setColorFilter(FormattingUtils.getColorFromAttr(getActivity(), R.attr.colorTertiaryText),
                PorterDuff.Mode.SRC_IN);

        View vCertifyButton = view.findViewById(R.id.certify_key_certify_button);
        vCertifyButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                long selectedKeyId = mCertifyKeySpinner.getSelectedKeyId();
                if (selectedKeyId == Constants.key.none) {
                    Notify.create(getActivity(), getString(R.string.select_key_to_certify),
                            Notify.Style.ERROR).show();
                } else {
                    cryptoOperation(new CryptoInputParcel(new Date()));
                }
            }
        });

        // If this is a debug build, don't upload by default
        if (Constants.DEBUG) {
            mUploadKeyCheckbox.setChecked(false);
        }

        return view;
    }

    @Override
    public CertifyActionsParcel createOperationInput() {

        // Bail out if there is not at least one user id selected
        ArrayList<CertifyAction> certifyActions = mMultiUserIdsFragment.getSelectedCertifyActions();
        if (certifyActions.isEmpty()) {
            Notify.create(getActivity(), "No identities selected!",
                    Notify.Style.ERROR).show();
            return null;
        }

        long selectedKeyId = mCertifyKeySpinner.getSelectedKeyId();

        // fill values for this action
        CertifyActionsParcel actionsParcel = new CertifyActionsParcel(selectedKeyId);
        actionsParcel.mCertifyActions.addAll(certifyActions);

        if (mUploadKeyCheckbox.isChecked()) {
            actionsParcel.keyServerUri = Preferences.getPreferences(getActivity())
                    .getPreferredKeyserver();
        }

        // cached for next cryptoOperation loop
        cacheActionsParcel(actionsParcel);

        return actionsParcel;
    }

    @Override
    public void onQueuedOperationSuccess(CertifyResult result) {
        // protected by Queueing*Fragment
        Activity activity = getActivity();

        Intent intent = new Intent();
        intent.putExtra(CertifyResult.EXTRA_RESULT, result);
        activity.setResult(Activity.RESULT_OK, intent);
        activity.finish();

    }

}