diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyShareFragment.java')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyShareFragment.java | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyShareFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyShareFragment.java new file mode 100644 index 000000000..aacf30429 --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyShareFragment.java @@ -0,0 +1,313 @@ +/* + * Copyright (C) 2014 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; + +import android.annotation.TargetApi; +import android.content.Intent; +import android.database.Cursor; +import android.net.Uri; +import android.os.Build; +import android.os.Bundle; +import android.provider.Settings; +import android.support.v4.app.Fragment; +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.ViewGroup; +import android.widget.ImageView; +import android.widget.LinearLayout; +import android.widget.TextView; + +import com.devspark.appmsg.AppMsg; + +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.compatibility.ClipboardReflection; +import org.sufficientlysecure.keychain.pgp.PgpKeyHelper; +import org.sufficientlysecure.keychain.provider.KeychainContract; +import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings; +import org.sufficientlysecure.keychain.provider.KeychainContract.Keys; +import org.sufficientlysecure.keychain.provider.ProviderHelper; +import org.sufficientlysecure.keychain.ui.dialog.ShareNfcDialogFragment; +import org.sufficientlysecure.keychain.ui.dialog.ShareQrCodeDialogFragment; +import org.sufficientlysecure.keychain.util.Log; +import org.sufficientlysecure.keychain.util.QrCodeUtils; + +import java.io.IOException; + + +public class ViewKeyShareFragment extends Fragment implements + LoaderManager.LoaderCallbacks<Cursor> { + + public static final String ARG_DATA_URI = "uri"; + + private LinearLayout mContainer; + private TextView mFingerprint; + private ImageView mFingerprintQrCode; + private View mFingerprintShareButton; + private View mFingerprintClipboardButton; + private View mKeyShareButton; + private View mKeyClipboardButton; + private View mNfcHelpButton; + private View mNfcPrefsButton; + + ProviderHelper mProviderHelper; + + private static final int QR_CODE_SIZE = 1000; + + private static final int LOADER_ID_UNIFIED = 0; + + private Uri mDataUri; + + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { + View view = inflater.inflate(R.layout.view_key_share_fragment, container, false); + + mProviderHelper = new ProviderHelper(ViewKeyShareFragment.this.getActivity()); + + mContainer = (LinearLayout) view.findViewById(R.id.container); + mFingerprint = (TextView) view.findViewById(R.id.view_key_fingerprint); + mFingerprintQrCode = (ImageView) view.findViewById(R.id.view_key_fingerprint_qr_code_image); + mFingerprintShareButton = view.findViewById(R.id.view_key_action_fingerprint_share); + mFingerprintClipboardButton = view.findViewById(R.id.view_key_action_fingerprint_clipboard); + mKeyShareButton = view.findViewById(R.id.view_key_action_key_share); + mKeyClipboardButton = view.findViewById(R.id.view_key_action_key_clipboard); + mNfcHelpButton = view.findViewById(R.id.view_key_action_nfc_help); + mNfcPrefsButton = view.findViewById(R.id.view_key_action_nfc_prefs); + + if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { + mNfcPrefsButton.setVisibility(View.VISIBLE); + } else { + mNfcPrefsButton.setVisibility(View.GONE); + } + + mFingerprintQrCode.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + showQrCodeDialog(); + } + }); + + mFingerprintShareButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + share(mDataUri, mProviderHelper, true, false); + } + }); + mFingerprintClipboardButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + share(mDataUri, mProviderHelper, true, true); + } + }); + mKeyShareButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + share(mDataUri, mProviderHelper, false, false); + } + }); + mKeyClipboardButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + share(mDataUri, mProviderHelper, false, true); + } + }); + mNfcHelpButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + showNfcHelpDialog(); + } + }); + mNfcPrefsButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + showNfcPrefs(); + } + }); + + return view; + } + + private void share(Uri dataUri, ProviderHelper providerHelper, boolean fingerprintOnly, + boolean toClipboard) { + try { + String content; + if (fingerprintOnly) { + byte[] data = (byte[]) providerHelper.getGenericData( + KeyRings.buildUnifiedKeyRingUri(dataUri), + Keys.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB); + String fingerprint = PgpKeyHelper.convertFingerprintToHex(data); + content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint; + } else { + // get public keyring as ascii armored string + Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(dataUri); + content = providerHelper.getKeyRingAsArmoredString(uri); + } + + if (toClipboard) { + ClipboardReflection.copyToClipboard(getActivity(), content); + String message; + if (fingerprintOnly) { + message = getResources().getString(R.string.fingerprint_copied_to_clipboard); + } else { + message = getResources().getString(R.string.key_copied_to_clipboard); + } + AppMsg.makeText(getActivity(), message, AppMsg.STYLE_INFO).show(); + } else { + // Android will fail with android.os.TransactionTooLargeException if key is too big + // see http://www.lonestarprod.com/?p=34 + if (content.length() >= 86389) { + AppMsg.makeText(getActivity(), R.string.key_too_big_for_sharing, + AppMsg.STYLE_ALERT).show(); + return; + } + + // let user choose application + Intent sendIntent = new Intent(Intent.ACTION_SEND); + sendIntent.putExtra(Intent.EXTRA_TEXT, content); + sendIntent.setType("text/plain"); + String title; + if (fingerprintOnly) { + title = getResources().getString(R.string.title_share_fingerprint_with); + } else { + title = getResources().getString(R.string.title_share_key_with); + } + startActivity(Intent.createChooser(sendIntent, title)); + } + } catch (IOException e) { + Log.e(Constants.TAG, "error processing key!", e); + AppMsg.makeText(getActivity(), R.string.error_key_processing, AppMsg.STYLE_ALERT).show(); + } 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(); + } + } + + private void showQrCodeDialog() { + ShareQrCodeDialogFragment dialog = ShareQrCodeDialogFragment.newInstance(mDataUri, + true); + dialog.show(ViewKeyShareFragment.this.getActivity().getSupportFragmentManager(), "shareQrCodeDialog"); + } + + private void showNfcHelpDialog() { + ShareNfcDialogFragment dialog = ShareNfcDialogFragment.newInstance(); + dialog.show(getActivity().getSupportFragmentManager(), "shareNfcDialog"); + } + + @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH) + private void showNfcPrefs() { + Intent intentSettings = new Intent( + Settings.ACTION_NFCSHARING_SETTINGS); + startActivity(intentSettings); + } + + @Override + public void onActivityCreated(Bundle savedInstanceState) { + super.onActivityCreated(savedInstanceState); + + Uri dataUri = getArguments().getParcelable(ARG_DATA_URI); + if (dataUri == null) { + Log.e(Constants.TAG, "Data missing. Should be Uri of key!"); + getActivity().finish(); + return; + } + + loadData(dataUri); + } + + private void loadData(Uri dataUri) { + getActivity().setProgressBarIndeterminateVisibility(true); + mContainer.setVisibility(View.GONE); + + mDataUri = dataUri; + + Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString()); + + // Prepare the loaders. Either re-connect with an existing ones, + // or start new ones. + getLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this); + } + + static final String[] UNIFIED_PROJECTION = new String[]{ + KeyRings._ID, KeyRings.MASTER_KEY_ID, KeyRings.HAS_ANY_SECRET, + KeyRings.USER_ID, KeyRings.FINGERPRINT, + KeyRings.ALGORITHM, KeyRings.KEY_SIZE, KeyRings.CREATION, KeyRings.EXPIRY, + + }; + static final int INDEX_UNIFIED_MASTER_KEY_ID = 1; + static final int INDEX_UNIFIED_HAS_ANY_SECRET = 2; + static final int INDEX_UNIFIED_USER_ID = 3; + static final int INDEX_UNIFIED_FINGERPRINT = 4; + static final int INDEX_UNIFIED_ALGORITHM = 5; + static final int INDEX_UNIFIED_KEY_SIZE = 6; + static final int INDEX_UNIFIED_CREATION = 7; + static final int INDEX_UNIFIED_EXPIRY = 8; + + public Loader<Cursor> onCreateLoader(int id, Bundle args) { + switch (id) { + case LOADER_ID_UNIFIED: { + Uri baseUri = KeyRings.buildUnifiedKeyRingUri(mDataUri); + return new CursorLoader(getActivity(), baseUri, UNIFIED_PROJECTION, null, null, null); + } + + default: + return null; + } + } + + public void onLoadFinished(Loader<Cursor> loader, Cursor data) { + /* TODO better error handling? May cause problems when a key is deleted, + * because the notification triggers faster than the activity closes. + */ + // Avoid NullPointerExceptions... + if (data.getCount() == 0) { + return; + } + // Swap the new cursor in. (The framework will take care of closing the + // old cursor once we return.) + switch (loader.getId()) { + case LOADER_ID_UNIFIED: { + if (data.moveToFirst()) { + + byte[] fingerprintBlob = data.getBlob(INDEX_UNIFIED_FINGERPRINT); + String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob); + mFingerprint.setText(PgpKeyHelper.colorizeFingerprint(fingerprint)); + + String qrCodeContent = Constants.FINGERPRINT_SCHEME + ":" + fingerprint; + mFingerprintQrCode.setImageBitmap( + QrCodeUtils.getQRCodeBitmap(qrCodeContent, QR_CODE_SIZE) + ); + + break; + } + } + + } + getActivity().setProgressBarIndeterminateVisibility(false); + mContainer.setVisibility(View.VISIBLE); + } + + /** + * This is called when the last Cursor provided to onLoadFinished() above is about to be closed. + * We need to make sure we are no longer using it. + */ + public void onLoaderReset(Loader<Cursor> loader) { + } +} |