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authorJack Humbert <jack.humb@gmail.com>2016-11-17 17:42:14 -0500
committerJack Humbert <jack.humb@gmail.com>2016-11-17 17:42:14 -0500
commit3774a7fcdab5544fc787f4c200be05fcd417e31f (patch)
treebb1c582d658ec7f19bce9d43f1c536b83066d40b /tmk_core/common/action.c
parent530dd3377e4d409a7ca2fee7e47b60b735ebc0fa (diff)
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/*
 * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
 *
 * 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.dialog;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import com.devspark.appmsg.AppMsg;

import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.provider.KeychainContract;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.util.QrCodeUtils;

import java.io.IOException;
import java.util.ArrayList;

public class ShareQrCodeDialogFragment extends DialogFragment {
    private static final String ARG_KEY_URI = "uri";
    private static final String ARG_FINGERPRINT_ONLY = "fingerprint_only";

    private ImageView mImage;
    private TextView mText;

    private boolean mFingerprintOnly;

    private ArrayList<String> mContentList;
    private int mCounter;

    private static final int QR_CODE_SIZE = 1000;

    /**
     * Creates new instance of this dialog fragment
     */
    public static ShareQrCodeDialogFragment newInstance(Uri dataUri, boolean fingerprintOnly) {
        ShareQrCodeDialogFragment frag = new ShareQrCodeDialogFragment();
        Bundle args = new Bundle();
        args.putParcelable(ARG_KEY_URI, dataUri);
        args.putBoolean(ARG_FINGERPRINT_ONLY, fingerprintOnly);

        frag.setArguments(args);

        return frag;
    }

    /**
     * Creates dialog
     */
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        final Activity activity = getActivity();

        Uri dataUri = getArguments().getParcelable(ARG_KEY_URI);
        mFingerprintOnly = getArguments().getBoolean(ARG_FINGERPRINT_ONLY);

        AlertDialog.Builder alert = new AlertDialog.Builder(getActivity());

        alert.setTitle(R.string.share_qr_code_dialog_title);

        LayoutInflater inflater = activity.getLayoutInflater();
        View view = inflater.inflate(R.layout.share_qr_code_dialog, null);
        alert.setView(view);

        mImage = (ImageView) view.findViewById(R.id.share_qr_code_dialog_image);
        mText = (TextView) view.findViewById(R.id.share_qr_code_dialog_text);

        String content = null;
        if (mFingerprintOnly) {
            alert.setPositiveButton(R.string.btn_okay, null);

            byte[] blob = (byte[]) ProviderHelper.getGenericData(
                    getActivity(), KeyRings.buildUnifiedKeyRingUri(dataUri),
                    KeyRings.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
            if(blob == null) {
                // TODO error handling?!
                return null;
            }

            String fingerprint = PgpKeyHelper.convertFingerprintToHex(blob);
            mText.setText(getString(R.string.share_qr_code_dialog_fingerprint_text) + " " + fingerprint);
            content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
            setQrCode(content);
        } else {
            mText.setText(R.string.share_qr_code_dialog_start);

            try {
                Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(dataUri);
                content = ProviderHelper.getKeyRingAsArmoredString(getActivity(), uri);
            } catch (IOException e) {
                Log.e(Constants.TAG, "error processing key!", e);
                AppMsg.makeText(getActivity(), R.string.error_invalid_data, AppMsg.STYLE_ALERT).show();
                return null;
            } catch (ProviderHelper.NotFoundException e) {
                Log.e(Constants.TAG, "key not found!", e);
                AppMsg.makeText(getActivity(), R.string.error_key_not_found, AppMsg.STYLE_ALERT).show();
                return null;
            }

            // OnClickListener are set in onResume to prevent automatic dismissing of Dialogs
            // http://bit.ly/O5vfaR
            alert.setPositiveButton(R.string.btn_next, null);
            alert.setNegativeButton(android.R.string.cancel, null);

            mContentList = splitString(content, 1000);

            // start with first
            mCounter = 0;
            updatePartsQrCode();
        }

        return alert.create();
    }

    @Override
    public void onResume() {
        super.onResume();

        if (!mFingerprintOnly) {
            AlertDialog alertDialog = (AlertDialog) getDialog();
            final Button backButton = alertDialog.getButton(AlertDialog.BUTTON_NEGATIVE);