382 lines
15 KiB
Java
382 lines
15 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.ActivityOptions;
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import android.content.Intent;
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import android.database.Cursor;
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import android.graphics.Bitmap;
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import android.graphics.PorterDuff;
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import android.net.Uri;
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import android.os.AsyncTask;
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import android.os.Build;
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import android.os.Bundle;
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import android.support.v4.app.ActivityCompat;
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import android.support.v4.app.LoaderManager;
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import android.support.v4.content.CursorLoader;
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import android.support.v4.content.Loader;
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import android.support.v7.widget.CardView;
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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.animation.AlphaAnimation;
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import android.widget.ImageButton;
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import android.widget.ImageView;
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import android.widget.TextView;
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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.compatibility.ClipboardReflection;
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import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
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import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
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import org.sufficientlysecure.keychain.provider.KeychainContract;
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import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
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import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
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import org.sufficientlysecure.keychain.ui.util.Notify;
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import org.sufficientlysecure.keychain.ui.util.QrCodeUtils;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.NfcHelper;
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import java.io.IOException;
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public class ViewKeyAdvShareFragment extends LoaderFragment implements
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LoaderManager.LoaderCallbacks<Cursor> {
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public static final String ARG_DATA_URI = "uri";
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private TextView mFingerprint;
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private ImageView mQrCode;
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private CardView mQrCodeLayout;
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private View mFingerprintShareButton;
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private View mFingerprintClipboardButton;
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private View mKeyShareButton;
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private View mKeyClipboardButton;
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private View mKeyNfcButton;
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private ImageButton mKeySafeSlingerButton;
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private View mKeyUploadButton;
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ProviderHelper mProviderHelper;
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NfcHelper mNfcHelper;
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private static final int LOADER_ID_UNIFIED = 0;
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private Uri mDataUri;
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
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View root = super.onCreateView(inflater, superContainer, savedInstanceState);
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View view = inflater.inflate(R.layout.view_key_adv_share_fragment, getContainer());
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mProviderHelper = new ProviderHelper(ViewKeyAdvShareFragment.this.getActivity());
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mNfcHelper = new NfcHelper(getActivity(), mProviderHelper);
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mFingerprint = (TextView) view.findViewById(R.id.view_key_fingerprint);
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mQrCode = (ImageView) view.findViewById(R.id.view_key_qr_code);
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mQrCodeLayout = (CardView) view.findViewById(R.id.view_key_qr_code_layout);
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mFingerprintShareButton = view.findViewById(R.id.view_key_action_fingerprint_share);
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mFingerprintClipboardButton = view.findViewById(R.id.view_key_action_fingerprint_clipboard);
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mKeyShareButton = view.findViewById(R.id.view_key_action_key_share);
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mKeyNfcButton = view.findViewById(R.id.view_key_action_key_nfc);
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mKeyClipboardButton = view.findViewById(R.id.view_key_action_key_clipboard);
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mKeySafeSlingerButton = (ImageButton) view.findViewById(R.id.view_key_action_key_safeslinger);
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mKeyUploadButton = view.findViewById(R.id.view_key_action_upload);
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mKeySafeSlingerButton.setColorFilter(getResources().getColor(R.color.tertiary_text_light),
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PorterDuff.Mode.SRC_IN);
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mQrCodeLayout.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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showQrCodeDialog();
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}
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});
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mFingerprintShareButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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share(mDataUri, mProviderHelper, true, false);
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}
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});
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mFingerprintClipboardButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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share(mDataUri, mProviderHelper, true, true);
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}
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});
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mKeyShareButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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share(mDataUri, mProviderHelper, false, false);
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}
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});
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mKeyClipboardButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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share(mDataUri, mProviderHelper, false, true);
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}
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});
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mKeyNfcButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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mNfcHelper.invokeNfcBeam();
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}
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});
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mKeySafeSlingerButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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startSafeSlinger(mDataUri);
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}
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});
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mKeyUploadButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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uploadToKeyserver();
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}
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});
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return root;
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}
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private void startSafeSlinger(Uri dataUri) {
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long keyId = 0;
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try {
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keyId = new ProviderHelper(getActivity())
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.getCachedPublicKeyRing(dataUri)
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.extractOrGetMasterKeyId();
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} catch (PgpKeyNotFoundException e) {
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Log.e(Constants.TAG, "key not found!", e);
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}
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Intent safeSlingerIntent = new Intent(getActivity(), SafeSlingerActivity.class);
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safeSlingerIntent.putExtra(SafeSlingerActivity.EXTRA_MASTER_KEY_ID, keyId);
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startActivityForResult(safeSlingerIntent, 0);
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}
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private void share(Uri dataUri, ProviderHelper providerHelper, boolean fingerprintOnly,
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boolean toClipboard) {
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try {
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String content;
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if (fingerprintOnly) {
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byte[] data = (byte[]) providerHelper.getGenericData(
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KeyRings.buildUnifiedKeyRingUri(dataUri),
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Keys.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
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String fingerprint = KeyFormattingUtils.convertFingerprintToHex(data);
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if (!toClipboard) {
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content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
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} else {
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content = fingerprint;
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}
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} else {
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Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(dataUri);
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// get public keyring as ascii armored string
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content = providerHelper.getKeyRingAsArmoredString(uri);
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}
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if (toClipboard) {
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ClipboardReflection.copyToClipboard(getActivity(), content);
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String message;
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if (fingerprintOnly) {
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message = getResources().getString(R.string.fingerprint_copied_to_clipboard);
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} else {
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message = getResources().getString(R.string.key_copied_to_clipboard);
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}
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Notify.create(getActivity(), message, Notify.Style.OK).show();
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} else {
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// Android will fail with android.os.TransactionTooLargeException if key is too big
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// see http://www.lonestarprod.com/?p=34
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if (content.length() >= 86389) {
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Notify.create(getActivity(), R.string.key_too_big_for_sharing,
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Notify.Style.ERROR).show();
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return;
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}
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// let user choose application
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Intent sendIntent = new Intent(Intent.ACTION_SEND);
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sendIntent.putExtra(Intent.EXTRA_TEXT, content);
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sendIntent.setType("text/plain");
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String title;
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if (fingerprintOnly) {
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title = getResources().getString(R.string.title_share_fingerprint_with);
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} else {
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title = getResources().getString(R.string.title_share_key);
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}
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startActivity(Intent.createChooser(sendIntent, title));
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}
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} catch (PgpGeneralException | IOException e) {
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Log.e(Constants.TAG, "error processing key!", e);
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Notify.create(getActivity(), R.string.error_key_processing, Notify.Style.ERROR).show();
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} catch (ProviderHelper.NotFoundException e) {
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Log.e(Constants.TAG, "key not found!", e);
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Notify.create(getActivity(), R.string.error_key_not_found, Notify.Style.ERROR).show();
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}
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}
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private void showQrCodeDialog() {
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Intent qrCodeIntent = new Intent(getActivity(), QrCodeViewActivity.class);
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// create the transition animation - the images in the layouts
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// of both activities are defined with android:transitionName="qr_code"
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Bundle opts = null;
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
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ActivityOptions options = ActivityOptions
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.makeSceneTransitionAnimation(getActivity(), mQrCodeLayout, "qr_code");
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opts = options.toBundle();
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}
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qrCodeIntent.setData(mDataUri);
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ActivityCompat.startActivity(getActivity(), qrCodeIntent, opts);
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}
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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Uri dataUri = getArguments().getParcelable(ARG_DATA_URI);
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if (dataUri == null) {
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Log.e(Constants.TAG, "Data missing. Should be Uri of key!");
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getActivity().finish();
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return;
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}
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loadData(dataUri);
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}
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private void loadData(Uri dataUri) {
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mDataUri = dataUri;
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Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString());
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// Prepare the loaders. Either re-connect with an existing ones,
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// or start new ones.
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getLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this);
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// Prepare the NfcHelper
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mNfcHelper.initNfc(mDataUri);
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}
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static final String[] UNIFIED_PROJECTION = new String[] {
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KeyRings._ID, KeyRings.MASTER_KEY_ID, KeyRings.HAS_ANY_SECRET,
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KeyRings.USER_ID, KeyRings.FINGERPRINT,
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KeyRings.ALGORITHM, KeyRings.KEY_SIZE, KeyRings.CREATION, KeyRings.IS_EXPIRED,
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};
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static final int INDEX_UNIFIED_MASTER_KEY_ID = 1;
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static final int INDEX_UNIFIED_HAS_ANY_SECRET = 2;
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static final int INDEX_UNIFIED_USER_ID = 3;
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static final int INDEX_UNIFIED_FINGERPRINT = 4;
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static final int INDEX_UNIFIED_ALGORITHM = 5;
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static final int INDEX_UNIFIED_KEY_SIZE = 6;
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static final int INDEX_UNIFIED_CREATION = 7;
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static final int INDEX_UNIFIED_ID_EXPIRED = 8;
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public Loader<Cursor> onCreateLoader(int id, Bundle args) {
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setContentShown(false);
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switch (id) {
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case LOADER_ID_UNIFIED: {
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Uri baseUri = KeyRings.buildUnifiedKeyRingUri(mDataUri);
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return new CursorLoader(getActivity(), baseUri, UNIFIED_PROJECTION, null, null, null);
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}
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default:
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return null;
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}
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}
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public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
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/* TODO better error handling? May cause problems when a key is deleted,
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* because the notification triggers faster than the activity closes.
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*/
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// Avoid NullPointerExceptions...
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if (data.getCount() == 0) {
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return;
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}
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// Swap the new cursor in. (The framework will take care of closing the
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// old cursor once we return.)
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switch (loader.getId()) {
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case LOADER_ID_UNIFIED: {
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if (data.moveToFirst()) {
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byte[] fingerprintBlob = data.getBlob(INDEX_UNIFIED_FINGERPRINT);
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String fingerprint = KeyFormattingUtils.convertFingerprintToHex(fingerprintBlob);
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mFingerprint.setText(KeyFormattingUtils.colorizeFingerprint(fingerprint));
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loadQrCode(fingerprint);
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break;
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}
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}
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}
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setContentShown(true);
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}
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/**
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* This is called when the last Cursor provided to onLoadFinished() above is about to be closed.
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* We need to make sure we are no longer using it.
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*/
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public void onLoaderReset(Loader<Cursor> loader) {
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}
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/**
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* Load QR Code asynchronously and with a fade in animation
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*
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* @param fingerprint
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*/
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private void loadQrCode(final String fingerprint) {
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AsyncTask<Void, Void, Bitmap> loadTask =
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new AsyncTask<Void, Void, Bitmap>() {
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protected Bitmap doInBackground(Void... unused) {
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String qrCodeContent = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
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// render with minimal size
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return QrCodeUtils.getQRCodeBitmap(qrCodeContent, 0);
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}
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protected void onPostExecute(Bitmap qrCode) {
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// only change view, if fragment is attached to activity
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if (ViewKeyAdvShareFragment.this.isAdded()) {
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// scale the image up to our actual size. we do this in code rather
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// than let the ImageView do this because we don't require filtering.
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Bitmap scaled = Bitmap.createScaledBitmap(qrCode,
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mQrCode.getHeight(), mQrCode.getHeight(),
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false);
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mQrCode.setImageBitmap(scaled);
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// simple fade-in animation
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AlphaAnimation anim = new AlphaAnimation(0.0f, 1.0f);
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anim.setDuration(200);
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mQrCode.startAnimation(anim);
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}
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}
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};
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loadTask.execute();
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}
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private void uploadToKeyserver() {
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Intent uploadIntent = new Intent(getActivity(), UploadKeyActivity.class);
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uploadIntent.setData(mDataUri);
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startActivityForResult(uploadIntent, 0);
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}
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} |