package org.thoughtcrime.securesms; import android.annotation.SuppressLint; import android.content.Context; import android.content.DialogInterface; import android.database.Cursor; import android.os.AsyncTask; import android.support.v7.app.AlertDialog; import android.text.SpannableString; import android.text.Spanned; import android.text.method.LinkMovementMethod; import android.widget.TextView; import org.thoughtcrime.securesms.crypto.storage.TextSecureIdentityKeyStore; import org.thoughtcrime.securesms.database.Address; import org.thoughtcrime.securesms.database.DatabaseFactory; import org.thoughtcrime.securesms.database.MmsDatabase; import org.thoughtcrime.securesms.database.MmsSmsDatabase; import org.thoughtcrime.securesms.database.PushDatabase; import org.thoughtcrime.securesms.database.SmsDatabase; import org.thoughtcrime.securesms.database.documents.IdentityKeyMismatch; import org.thoughtcrime.securesms.database.model.MessageRecord; import org.thoughtcrime.securesms.jobs.PushDecryptJob; import org.thoughtcrime.securesms.recipients.Recipient; import org.thoughtcrime.securesms.sms.MessageSender; import org.thoughtcrime.securesms.util.Base64; import org.thoughtcrime.securesms.util.VerifySpan; import org.whispersystems.libsignal.SignalProtocolAddress; import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope; import org.whispersystems.signalservice.internal.push.SignalServiceProtos; import java.io.IOException; import static org.whispersystems.libsignal.SessionCipher.SESSION_LOCK; public class ConfirmIdentityDialog extends AlertDialog { @SuppressWarnings("unused") private static final String TAG = ConfirmIdentityDialog.class.getSimpleName(); private OnClickListener callback; public ConfirmIdentityDialog(Context context, MessageRecord messageRecord, IdentityKeyMismatch mismatch) { super(context); Recipient recipient = Recipient.from(context, mismatch.getAddress(), false); String name = recipient.toShortString(); String introduction = String.format(context.getString(R.string.ConfirmIdentityDialog_your_safety_number_with_s_has_changed), name, name); SpannableString spannableString = new SpannableString(introduction + " " + context.getString(R.string.ConfirmIdentityDialog_you_may_wish_to_verify_your_safety_number_with_this_contact)); spannableString.setSpan(new VerifySpan(context, mismatch), introduction.length()+1, spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); setTitle(name); setMessage(spannableString); setButton(AlertDialog.BUTTON_POSITIVE, context.getString(R.string.ConfirmIdentityDialog_accept), new AcceptListener(messageRecord, mismatch, recipient.getAddress())); setButton(AlertDialog.BUTTON_NEGATIVE, context.getString(android.R.string.cancel), new CancelListener()); } @Override public void show() { super.show(); ((TextView)this.findViewById(android.R.id.message)) .setMovementMethod(LinkMovementMethod.getInstance()); } public void setCallback(OnClickListener callback) { this.callback = callback; } private class AcceptListener implements OnClickListener { private final MessageRecord messageRecord; private final IdentityKeyMismatch mismatch; private final Address address; private AcceptListener(MessageRecord messageRecord, IdentityKeyMismatch mismatch, Address address) { this.messageRecord = messageRecord; this.mismatch = mismatch; this.address = address; } @SuppressLint("StaticFieldLeak") @Override public void onClick(DialogInterface dialog, int which) { new AsyncTask() { @Override protected Void doInBackground(Void... params) { synchronized (SESSION_LOCK) { SignalProtocolAddress mismatchAddress = new SignalProtocolAddress(address.toPhoneString(), 1); TextSecureIdentityKeyStore identityKeyStore = new TextSecureIdentityKeyStore(getContext()); identityKeyStore.saveIdentity(mismatchAddress, mismatch.getIdentityKey(), true); } processMessageRecord(messageRecord); processPendingMessageRecords(messageRecord.getThreadId(), mismatch); return null; } private void processMessageRecord(MessageRecord messageRecord) { if (messageRecord.isOutgoing()) processOutgoingMessageRecord(messageRecord); else processIncomingMessageRecord(messageRecord); } private void processPendingMessageRecords(long threadId, IdentityKeyMismatch mismatch) { MmsSmsDatabase mmsSmsDatabase = DatabaseFactory.getMmsSmsDatabase(getContext()); Cursor cursor = mmsSmsDatabase.getIdentityConflictMessagesForThread(threadId); MmsSmsDatabase.Reader reader = mmsSmsDatabase.readerFor(cursor); MessageRecord record; try { while ((record = reader.getNext()) != null) { for (IdentityKeyMismatch recordMismatch : record.getIdentityKeyMismatches()) { if (mismatch.equals(recordMismatch)) { processMessageRecord(record); } } } } finally { if (reader != null) reader.close(); } } private void processOutgoingMessageRecord(MessageRecord messageRecord) { SmsDatabase smsDatabase = DatabaseFactory.getSmsDatabase(getContext()); MmsDatabase mmsDatabase = DatabaseFactory.getMmsDatabase(getContext()); if (messageRecord.isMms()) { mmsDatabase.removeMismatchedIdentity(messageRecord.getId(), mismatch.getAddress(), mismatch.getIdentityKey()); if (messageRecord.getRecipient().isPushGroupRecipient()) { MessageSender.resendGroupMessage(getContext(), messageRecord, mismatch.getAddress()); } else { MessageSender.resend(getContext(), messageRecord); } } else { smsDatabase.removeMismatchedIdentity(messageRecord.getId(), mismatch.getAddress(), mismatch.getIdentityKey()); MessageSender.resend(getContext(), messageRecord); } } private void processIncomingMessageRecord(MessageRecord messageRecord) { try { PushDatabase pushDatabase = DatabaseFactory.getPushDatabase(getContext()); SmsDatabase smsDatabase = DatabaseFactory.getSmsDatabase(getContext()); smsDatabase.removeMismatchedIdentity(messageRecord.getId(), mismatch.getAddress(), mismatch.getIdentityKey()); boolean legacy = !messageRecord.isContentBundleKeyExchange(); SignalServiceEnvelope envelope = new SignalServiceEnvelope(SignalServiceProtos.Envelope.Type.PREKEY_BUNDLE_VALUE, messageRecord.getIndividualRecipient().getAddress().toPhoneString(), messageRecord.getRecipientDeviceId(), "", messageRecord.getDateSent(), legacy ? Base64.decode(messageRecord.getBody()) : null, !legacy ? Base64.decode(messageRecord.getBody()) : null); long pushId = pushDatabase.insert(envelope); ApplicationContext.getInstance(getContext()) .getJobManager() .add(new PushDecryptJob(getContext(), pushId, messageRecord.getId())); } catch (IOException e) { throw new AssertionError(e); } } }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); if (callback != null) callback.onClick(null, 0); } } private class CancelListener implements OnClickListener { @Override public void onClick(DialogInterface dialog, int which) { if (callback != null) callback.onClick(null, 0); } } }