diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyFragment.java')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyFragment.java | 615 |
1 files changed, 615 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyFragment.java new file mode 100644 index 000000000..9ae656b2d --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyFragment.java @@ -0,0 +1,615 @@ +/* + * Copyright (C) 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.annotation.TargetApi; +import android.content.Intent; +import android.database.Cursor; +import android.graphics.Bitmap; +import android.graphics.PorterDuff; +import android.net.Uri; +import android.os.AsyncTask; +import android.os.Build; +import android.os.Bundle; +import android.provider.Settings; +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.view.animation.AlphaAnimation; +import android.widget.AdapterView; +import android.widget.ImageButton; +import android.widget.ImageView; +import android.widget.ListView; +import android.widget.TextView; + +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.compatibility.ClipboardReflection; +import org.sufficientlysecure.keychain.compatibility.DialogFragmentWorkaround; +import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException; +import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException; +import org.sufficientlysecure.keychain.provider.KeychainContract; +import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings; +import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets; +import org.sufficientlysecure.keychain.provider.ProviderHelper; +import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException; +import org.sufficientlysecure.keychain.ui.adapter.UserIdsAdapter; +import org.sufficientlysecure.keychain.ui.dialog.ShareNfcDialogFragment; +import org.sufficientlysecure.keychain.ui.dialog.UserIdInfoDialogFragment; +import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils; +import org.sufficientlysecure.keychain.ui.util.Notify; +import org.sufficientlysecure.keychain.ui.util.QrCodeUtils; +import org.sufficientlysecure.keychain.util.Log; + +import java.io.IOException; +import java.util.Date; + +public class ViewKeyFragment extends LoaderFragment implements + LoaderManager.LoaderCallbacks<Cursor> { + + public static final String ARG_DATA_URI = "uri"; + + private View mActionEdit; + private View mActionEditDivider; + private View mActionEncryptFiles; + private View mActionEncryptText; + private View mActionEncryptTextText; + private View mActionCertify; + private View mActionCertifyText; + private ImageView mActionCertifyImage; + private View mActionUpdate; + + private TextView mFingerprint; + private ImageView mFingerprintQrCode; + private View mFingerprintShareButton; + private View mFingerprintClipboardButton; + private View mKeyShareButton; + private View mKeyClipboardButton; + private ImageButton mKeySafeSlingerButton; + private View mNfcHelpButton; + private View mNfcPrefsButton; + private View mKeyUploadButton; + private ListView mUserIds; + + private static final int LOADER_ID_UNIFIED = 0; + private static final int LOADER_ID_USER_IDS = 1; + + // conservative attitude + private boolean mHasEncrypt = true; + + private UserIdsAdapter mUserIdsAdapter; + + private Uri mDataUri; + + ProviderHelper mProviderHelper; + + /** + * Creates new instance of this fragment + */ + public static ViewKeyFragment newInstance(Uri dataUri) { + ViewKeyFragment frag = new ViewKeyFragment(); + Bundle args = new Bundle(); + args.putParcelable(ARG_DATA_URI, dataUri); + + frag.setArguments(args); + + return frag; + } + + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) { + View root = super.onCreateView(inflater, superContainer, savedInstanceState); + View view = inflater.inflate(R.layout.view_key_fragment, getContainer()); + + mProviderHelper = new ProviderHelper(getActivity()); + + mUserIds = (ListView) view.findViewById(R.id.view_key_user_ids); + mActionEdit = view.findViewById(R.id.view_key_action_edit); + mActionEditDivider = view.findViewById(R.id.view_key_action_edit_divider); + mActionEncryptText = view.findViewById(R.id.view_key_action_encrypt_text); + mActionEncryptTextText = view.findViewById(R.id.view_key_action_encrypt_text_text); + mActionEncryptFiles = view.findViewById(R.id.view_key_action_encrypt_files); + mActionCertify = view.findViewById(R.id.view_key_action_certify); + mActionCertifyText = view.findViewById(R.id.view_key_action_certify_text); + mActionCertifyImage = (ImageView) view.findViewById(R.id.view_key_action_certify_image); + // make certify image gray, like action icons + mActionCertifyImage.setColorFilter(getResources().getColor(R.color.tertiary_text_light), + PorterDuff.Mode.SRC_IN); + mActionUpdate = view.findViewById(R.id.view_key_action_update); + + mUserIds.setOnItemClickListener(new AdapterView.OnItemClickListener() { + @Override + public void onItemClick(AdapterView<?> parent, View view, int position, long id) { + showUserIdInfo(position); + } + }); + + 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); + mKeySafeSlingerButton = (ImageButton) view.findViewById(R.id.view_key_action_key_safeslinger); + mNfcHelpButton = view.findViewById(R.id.view_key_action_nfc_help); + mNfcPrefsButton = view.findViewById(R.id.view_key_action_nfc_prefs); + mKeyUploadButton = view.findViewById(R.id.view_key_action_upload); + + mKeySafeSlingerButton.setColorFilter(getResources().getColor(R.color.tertiary_text_light), + PorterDuff.Mode.SRC_IN); + + 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); + } + }); + mKeySafeSlingerButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + startSafeSlinger(mDataUri); + } + }); + mNfcHelpButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + showNfcHelpDialog(); + } + }); + mNfcPrefsButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + showNfcPrefs(); + } + }); + mKeyUploadButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + uploadToKeyserver(); + } + }); + + + return root; + } + + private void startSafeSlinger(Uri dataUri) { + long keyId = 0; + try { + keyId = new ProviderHelper(getActivity()) + .getCachedPublicKeyRing(dataUri) + .extractOrGetMasterKeyId(); + } catch (PgpKeyNotFoundException e) { + Log.e(Constants.TAG, "key not found!", e); + } + Intent safeSlingerIntent = new Intent(getActivity(), SafeSlingerActivity.class); + safeSlingerIntent.putExtra(SafeSlingerActivity.EXTRA_MASTER_KEY_ID, keyId); + startActivityForResult(safeSlingerIntent, 0); + } + + private void share(Uri dataUri, ProviderHelper providerHelper, boolean fingerprintOnly, + boolean toClipboard) { + try { + String content; + if (fingerprintOnly) { + byte[] data = (byte[]) providerHelper.getGenericData( + KeyRings.buildUnifiedKeyRingUri(dataUri), + KeychainContract.Keys.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB); + String fingerprint = KeyFormattingUtils.convertFingerprintToHex(data); + if (!toClipboard) { + content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint; + } else { + content = fingerprint; + } + } else { + Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(dataUri); + // get public keyring as ascii armored string + 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); + } + Notify.showNotify(getActivity(), message, Notify.Style.OK); + } else { + // Android will fail with android.os.TransactionTooLargeException if key is too big + // see http://www.lonestarprod.com/?p=34 + if (content.length() >= 86389) { + Notify.showNotify(getActivity(), R.string.key_too_big_for_sharing, + Notify.Style.ERROR); + 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); + } + startActivity(Intent.createChooser(sendIntent, title)); + } + } catch (PgpGeneralException | IOException e) { + Log.e(Constants.TAG, "error processing key!", e); + Notify.showNotify(getActivity(), R.string.error_key_processing, Notify.Style.ERROR); + } catch (ProviderHelper.NotFoundException e) { + Log.e(Constants.TAG, "key not found!", e); + Notify.showNotify(getActivity(), R.string.error_key_not_found, Notify.Style.ERROR); + } + } + + private void showQrCodeDialog() { + Intent qrCodeIntent = new Intent(getActivity(), QrCodeViewActivity.class); + qrCodeIntent.setData(mDataUri); + startActivity(qrCodeIntent); + } + + 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); + } + + private void showUserIdInfo(final int position) { + final boolean isRevoked = mUserIdsAdapter.getIsRevoked(position); + final int isVerified = mUserIdsAdapter.getIsVerified(position); + + DialogFragmentWorkaround.INTERFACE.runnableRunDelayed(new Runnable() { + public void run() { + UserIdInfoDialogFragment dialogFragment = + UserIdInfoDialogFragment.newInstance(isRevoked, isVerified); + + dialogFragment.show(getActivity().getSupportFragmentManager(), "userIdInfoDialog"); + } + }); + } + + @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) { + mDataUri = dataUri; + + Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString()); + + mActionEncryptFiles.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + encrypt(mDataUri, false); + } + }); + mActionEncryptText.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + encrypt(mDataUri, true); + } + }); + mActionCertify.setOnClickListener(new View.OnClickListener() { + public void onClick(View view) { + certify(mDataUri); + } + }); + mActionEdit.setOnClickListener(new View.OnClickListener() { + public void onClick(View view) { + editKey(mDataUri); + } + }); + mActionUpdate.setOnClickListener(new View.OnClickListener() { + public void onClick(View view) { + try { + updateFromKeyserver(mDataUri, new ProviderHelper(getActivity())); + } catch (NotFoundException e) { + Notify.showNotify(getActivity(), R.string.error_key_not_found, Notify.Style.ERROR); + } + } + }); + + mUserIdsAdapter = new UserIdsAdapter(getActivity(), null, 0); + mUserIds.setAdapter(mUserIdsAdapter); + + // Prepare the loaders. Either re-connect with an existing ones, + // or start new ones. + getLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this); + getLoaderManager().initLoader(LOADER_ID_USER_IDS, 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, + KeyRings.IS_REVOKED, KeyRings.HAS_ENCRYPT, + + }; + 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; + static final int INDEX_UNIFIED_IS_REVOKED = 9; + static final int INDEX_UNIFIED_HAS_ENCRYPT = 10; + + public Loader<Cursor> onCreateLoader(int id, Bundle args) { + setContentShown(false); + + switch (id) { + case LOADER_ID_UNIFIED: { + Uri baseUri = KeyRings.buildUnifiedKeyRingUri(mDataUri); + return new CursorLoader(getActivity(), baseUri, UNIFIED_PROJECTION, null, null, null); + } + case LOADER_ID_USER_IDS: { + Uri baseUri = UserPackets.buildUserIdsUri(mDataUri); + return new CursorLoader(getActivity(), baseUri, + UserIdsAdapter.USER_IDS_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 = KeyFormattingUtils.convertFingerprintToHex(fingerprintBlob); + mFingerprint.setText(KeyFormattingUtils.colorizeFingerprint(fingerprint)); + + loadQrCode(fingerprint); + + if (data.getInt(INDEX_UNIFIED_HAS_ANY_SECRET) != 0) { + // edit button + mActionEdit.setVisibility(View.VISIBLE); + mActionEditDivider.setVisibility(View.VISIBLE); + } else { + // edit button + mActionEdit.setVisibility(View.GONE); + mActionEditDivider.setVisibility(View.GONE); + } + + // If this key is revoked, it cannot be used for anything! + if (data.getInt(INDEX_UNIFIED_IS_REVOKED) != 0) { + mActionEdit.setEnabled(false); + mActionCertify.setEnabled(false); + mActionCertifyText.setEnabled(false); + mActionEncryptText.setEnabled(false); + mActionEncryptTextText.setEnabled(false); + mActionEncryptFiles.setEnabled(false); + } else { + mActionEdit.setEnabled(true); + + Date expiryDate = new Date(data.getLong(INDEX_UNIFIED_EXPIRY) * 1000); + if (!data.isNull(INDEX_UNIFIED_EXPIRY) && expiryDate.before(new Date())) { + mActionCertify.setEnabled(false); + mActionCertifyText.setEnabled(false); + mActionEncryptText.setEnabled(false); + mActionEncryptTextText.setEnabled(false); + mActionEncryptFiles.setEnabled(false); + } else { + mActionCertify.setEnabled(true); + mActionCertifyText.setEnabled(true); + mActionEncryptText.setEnabled(true); + mActionEncryptTextText.setEnabled(true); + mActionEncryptFiles.setEnabled(true); + } + } + + mHasEncrypt = data.getInt(INDEX_UNIFIED_HAS_ENCRYPT) != 0; + + break; + } + } + + case LOADER_ID_USER_IDS: + mUserIdsAdapter.swapCursor(data); + break; + + } + setContentShown(true); + } + + /** + * 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) { + switch (loader.getId()) { + case LOADER_ID_USER_IDS: + mUserIdsAdapter.swapCursor(null); + break; + } + } + + + /** + * Load QR Code asynchronously and with a fade in animation + * + * @param fingerprint + */ + private void loadQrCode(final String fingerprint) { + AsyncTask<Void, Void, Bitmap> loadTask = + new AsyncTask<Void, Void, Bitmap>() { + protected Bitmap doInBackground(Void... unused) { + String qrCodeContent = Constants.FINGERPRINT_SCHEME + ":" + fingerprint; + // render with minimal size + return QrCodeUtils.getQRCodeBitmap(qrCodeContent, 0); + } + + protected void onPostExecute(Bitmap qrCode) { + // only change view, if fragment is attached to activity + if (ViewKeyFragment.this.isAdded()) { + + // scale the image up to our actual size. we do this in code rather + // than let the ImageView do this because we don't require filtering. + Bitmap scaled = Bitmap.createScaledBitmap(qrCode, + mFingerprintQrCode.getHeight(), mFingerprintQrCode.getHeight(), + false); + mFingerprintQrCode.setImageBitmap(scaled); + + // simple fade-in animation + AlphaAnimation anim = new AlphaAnimation(0.0f, 1.0f); + anim.setDuration(200); + mFingerprintQrCode.startAnimation(anim); + } + } + }; + + loadTask.execute(); + } + + private void uploadToKeyserver() { + Intent uploadIntent = new Intent(getActivity(), UploadKeyActivity.class); + uploadIntent.setData(mDataUri); + startActivityForResult(uploadIntent, 0); + } + + private void encrypt(Uri dataUri, boolean text) { + // If there is no encryption key, don't bother. + if (!mHasEncrypt) { + Notify.showNotify(getActivity(), R.string.error_no_encrypt_subkey, Notify.Style.ERROR); + return; + } + try { + long keyId = new ProviderHelper(getActivity()) + .getCachedPublicKeyRing(dataUri) + .extractOrGetMasterKeyId(); + long[] encryptionKeyIds = new long[]{keyId}; + Intent intent; + if (text) { + intent = new Intent(getActivity(), EncryptTextActivity.class); + intent.setAction(EncryptTextActivity.ACTION_ENCRYPT_TEXT); + intent.putExtra(EncryptTextActivity.EXTRA_ENCRYPTION_KEY_IDS, encryptionKeyIds); + } else { + intent = new Intent(getActivity(), EncryptFilesActivity.class); + intent.setAction(EncryptFilesActivity.ACTION_ENCRYPT_DATA); + intent.putExtra(EncryptFilesActivity.EXTRA_ENCRYPTION_KEY_IDS, encryptionKeyIds); + } + // used instead of startActivity set actionbar based on callingPackage + startActivityForResult(intent, 0); + } catch (PgpKeyNotFoundException e) { + Log.e(Constants.TAG, "key not found!", e); + } + } + + private void updateFromKeyserver(Uri dataUri, ProviderHelper providerHelper) + throws NotFoundException { + byte[] blob = (byte[]) providerHelper.getGenericData( + KeyRings.buildUnifiedKeyRingUri(dataUri), + KeychainContract.Keys.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB); + String fingerprint = KeyFormattingUtils.convertFingerprintToHex(blob); + + Intent queryIntent = new Intent(getActivity(), ImportKeysActivity.class); + queryIntent.setAction(ImportKeysActivity.ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN_RESULT); + queryIntent.putExtra(ImportKeysActivity.EXTRA_FINGERPRINT, fingerprint); + + startActivityForResult(queryIntent, 0); + } + + private void certify(Uri dataUri) { + long keyId = 0; + try { + keyId = new ProviderHelper(getActivity()) + .getCachedPublicKeyRing(dataUri) + .extractOrGetMasterKeyId(); + } catch (PgpKeyNotFoundException e) { + Log.e(Constants.TAG, "key not found!", e); + } + Intent certifyIntent = new Intent(getActivity(), CertifyKeyActivity.class); + certifyIntent.putExtra(CertifyKeyActivity.EXTRA_KEY_IDS, new long[]{keyId}); + startActivityForResult(certifyIntent, 0); + } + + private void editKey(Uri dataUri) { + Intent editIntent = new Intent(getActivity(), EditKeyActivity.class); + editIntent.setData(KeychainContract.KeyRingData.buildSecretKeyRingUri(dataUri)); + startActivityForResult(editIntent, 0); + } + +} |