239 lines
9.6 KiB
Java
239 lines
9.6 KiB
Java
/*
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* Copyright (C) 2013-2014 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.content.Intent;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.Bundle;
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import android.support.v4.app.LoaderManager;
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import android.support.v4.app.NavUtils;
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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.app.ActionBar;
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import android.support.v7.app.ActionBarActivity;
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import android.text.format.DateFormat;
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import android.view.MenuItem;
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import android.view.View;
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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.pgp.CanonicalizedPublicKeyRing;
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import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
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import org.sufficientlysecure.keychain.pgp.WrappedSignature;
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import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
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import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
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import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.util.Log;
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import java.util.Date;
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public class ViewCertActivity extends ActionBarActivity
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implements LoaderManager.LoaderCallbacks<Cursor> {
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// These are the rows that we will retrieve.
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static final String[] PROJECTION = new String[]{
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Certs.MASTER_KEY_ID,
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Certs.USER_ID,
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Certs.TYPE,
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Certs.CREATION,
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Certs.KEY_ID_CERTIFIER,
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Certs.SIGNER_UID,
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Certs.DATA,
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};
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private static final int INDEX_MASTER_KEY_ID = 0;
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private static final int INDEX_USER_ID = 1;
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private static final int INDEX_TYPE = 2;
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private static final int INDEX_CREATION = 3;
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private static final int INDEX_KEY_ID_CERTIFIER = 4;
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private static final int INDEX_SIGNER_UID = 5;
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private static final int INDEX_DATA = 6;
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private Uri mDataUri;
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private long mCertifierKeyId;
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private TextView mSigneeKey, mSigneeUid, mAlgorithm, mType, mReason, mCreation;
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private TextView mCertifierKey, mCertifierUid, mStatus;
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private View mRowReason;
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private View mViewCertifierButton;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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ActionBar actionBar = getSupportActionBar();
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actionBar.setDisplayHomeAsUpEnabled(true);
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setContentView(R.layout.view_cert_activity);
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mStatus = (TextView) findViewById(R.id.status);
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mSigneeKey = (TextView) findViewById(R.id.signee_key);
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mSigneeUid = (TextView) findViewById(R.id.signee_uid);
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mAlgorithm = (TextView) findViewById(R.id.algorithm);
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mType = (TextView) findViewById(R.id.signature_type);
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mReason = (TextView) findViewById(R.id.reason);
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mCreation = (TextView) findViewById(R.id.creation);
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mCertifierKey = (TextView) findViewById(R.id.signer_key_id);
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mCertifierUid = (TextView) findViewById(R.id.signer_uid);
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mRowReason = findViewById(R.id.row_reason);
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mViewCertifierButton = findViewById(R.id.view_cert_view_cert_key);
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mDataUri = getIntent().getData();
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if (mDataUri == null) {
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Log.e(Constants.TAG, "Intent data missing. Should be Uri of key!");
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finish();
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return;
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}
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getSupportLoaderManager().initLoader(0, null, this);
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}
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@Override
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public Loader<Cursor> onCreateLoader(int id, Bundle args) {
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// Now create and return a CursorLoader that will take care of
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// creating a Cursor for the data being displayed.
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return new CursorLoader(this, mDataUri, PROJECTION, null, null, null);
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}
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@Override
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public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
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if (data.moveToFirst()) {
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String signeeKey = PgpKeyHelper.convertKeyIdToHex(data.getLong(INDEX_MASTER_KEY_ID));
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mSigneeKey.setText(signeeKey);
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String signeeUid = data.getString(INDEX_USER_ID);
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mSigneeUid.setText(signeeUid);
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Date creationDate = new Date(data.getLong(INDEX_CREATION) * 1000);
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mCreation.setText(DateFormat.getDateFormat(getApplicationContext()).format(creationDate));
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mCertifierKeyId = data.getLong(INDEX_KEY_ID_CERTIFIER);
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String certifierKey = PgpKeyHelper.convertKeyIdToHex(mCertifierKeyId);
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mCertifierKey.setText(certifierKey);
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String certifierUid = data.getString(INDEX_SIGNER_UID);
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if (certifierUid != null) {
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mCertifierUid.setText(certifierUid);
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} else {
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mCertifierUid.setText(R.string.unknown_uid);
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}
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WrappedSignature sig = WrappedSignature.fromBytes(data.getBlob(INDEX_DATA));
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try {
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ProviderHelper providerHelper = new ProviderHelper(this);
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CanonicalizedPublicKeyRing signeeRing =
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providerHelper.getCanonicalizedPublicKeyRing(data.getLong(INDEX_MASTER_KEY_ID));
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CanonicalizedPublicKeyRing signerRing =
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providerHelper.getCanonicalizedPublicKeyRing(sig.getKeyId());
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try {
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sig.init(signerRing.getPublicKey());
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if (sig.verifySignature(signeeRing.getPublicKey(), signeeUid)) {
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mStatus.setText(R.string.cert_verify_ok);
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mStatus.setTextColor(getResources().getColor(R.color.android_green_light));
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} else {
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mStatus.setText(R.string.cert_verify_failed);
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mStatus.setTextColor(getResources().getColor(R.color.alert));
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}
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} catch (PgpGeneralException e) {
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mStatus.setText(R.string.cert_verify_error);
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mStatus.setTextColor(getResources().getColor(R.color.alert));
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}
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} catch (ProviderHelper.NotFoundException e) {
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mStatus.setText(R.string.cert_verify_unavailable);
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mStatus.setTextColor(getResources().getColor(R.color.black));
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}
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String algorithmStr = PgpKeyHelper.getAlgorithmInfo(this, sig.getKeyAlgorithm(), 0);
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mAlgorithm.setText(algorithmStr);
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mRowReason.setVisibility(View.GONE);
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switch (data.getInt(INDEX_TYPE)) {
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case WrappedSignature.DEFAULT_CERTIFICATION:
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mType.setText(R.string.cert_default);
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break;
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case WrappedSignature.NO_CERTIFICATION:
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mType.setText(R.string.cert_none);
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break;
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case WrappedSignature.CASUAL_CERTIFICATION:
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mType.setText(R.string.cert_casual);
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break;
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case WrappedSignature.POSITIVE_CERTIFICATION:
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mType.setText(R.string.cert_positive);
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break;
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case WrappedSignature.CERTIFICATION_REVOCATION: {
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mType.setText(R.string.cert_revoke);
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if (sig.isRevocation()) {
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try {
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mReason.setText(sig.getRevocationReason());
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} catch(PgpGeneralException e) {
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mReason.setText(R.string.none);
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}
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mRowReason.setVisibility(View.VISIBLE);
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}
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break;
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}
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}
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}
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// can't do this before the data is initialized
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mViewCertifierButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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Intent viewIntent = new Intent(ViewCertActivity.this, ViewKeyActivity.class);
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try {
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ProviderHelper providerHelper = new ProviderHelper(ViewCertActivity.this);
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long signerMasterKeyId = providerHelper.getCachedPublicKeyRing(
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KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(mCertifierKeyId)).getMasterKeyId();
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viewIntent.setData(KeyRings.buildGenericKeyRingUri(signerMasterKeyId));
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startActivity(viewIntent);
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} catch (PgpGeneralException e) {
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// TODO notify user of this, maybe offer download?
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Log.e(Constants.TAG, "key not found!", e);
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}
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}
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});
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}
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@Override
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public void onLoaderReset(Loader<Cursor> loader) {
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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switch (item.getItemId()) {
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case android.R.id.home: {
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Intent viewIntent = NavUtils.getParentActivityIntent(this);
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viewIntent.setData(KeyRings.buildGenericKeyRingUri(mDataUri));
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NavUtils.navigateUpTo(this, viewIntent);
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return true;
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}
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}
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return super.onOptionsItemSelected(item);
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}
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}
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