import org.whispersystems.signalservice.api.crypto.SignalServiceCipher; //导入依赖的package包/类
private IncomingMessage handleIncomingSofaMessage(final SignalServiceEnvelope envelope) throws InvalidVersionException, InvalidMessageException, InvalidKeyException, DuplicateMessageException, InvalidKeyIdException, org.whispersystems.libsignal.UntrustedIdentityException, LegacyMessageException, NoSessionException {
    final SignalServiceAddress localAddress = new SignalServiceAddress(this.wallet.getOwnerAddress());
    final SignalServiceCipher cipher = new SignalServiceCipher(localAddress, this.protocolStore);
    final SignalServiceContent content = cipher.decrypt(envelope);
    final String messageSource = envelope.getSource();

    if (isUserBlocked(messageSource)) {
        LogUtil.i(getClass(), "A blocked user is trying to send a message");
        return null;
    }

    if (content.getDataMessage().isPresent()) {
        final SignalServiceDataMessage dataMessage = content.getDataMessage().get();
        if (dataMessage.isGroupUpdate()) return taskGroupUpdate.run(messageSource, dataMessage);
        else return taskHandleMessage.run(messageSource, dataMessage);
    }
    return null;
}
 

import org.whispersystems.signalservice.api.crypto.SignalServiceCipher; //导入依赖的package包/类
private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws NoSessionException, LegacyMessageException, InvalidVersionException, InvalidMessageException, DuplicateMessageException, InvalidKeyException, InvalidKeyIdException, org.whispersystems.libsignal.UntrustedIdentityException {
    SignalServiceCipher cipher = new SignalServiceCipher(new SignalServiceAddress(wallet.getOwnerAddress()), signalProtocolStore);
    try {
        return cipher.decrypt(envelope);
    } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
        signalProtocolStore.saveIdentity(new SignalProtocolAddress(e.getName(), 1), e.getUntrustedIdentity());
        return cipher.decrypt(envelope);
    }
}
 

import org.whispersystems.signalservice.api.crypto.SignalServiceCipher; //导入依赖的package包/类
private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws NoSessionException, LegacyMessageException, InvalidVersionException, InvalidMessageException, DuplicateMessageException, InvalidKeyException, InvalidKeyIdException, org.whispersystems.libsignal.UntrustedIdentityException {
    SignalServiceCipher cipher = new SignalServiceCipher(new SignalServiceAddress(username), signalProtocolStore);
    try {
        return cipher.decrypt(envelope);
    } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
        signalProtocolStore.saveIdentity(e.getName(), e.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
        throw e;
    }
}