Extended the sample app's capabilities in order to be able to send a create_htlc operation
- The brainkey must be specified in code before trying this feature out.develop
Nelson R. Perez
parent
9057121146
commit
d82bc6add1
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@ -14,10 +14,11 @@
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android:supportsRtl="true"
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android:theme="@style/AppTheme"
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tools:ignore="GoogleAppIndexingWarning">
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<activity android:name=".HtlcActivity"></activity>
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<activity
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android:name=".BrainkeyActivity"
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android:label="@string/title_activity_brainkey"
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android:theme="@style/AppTheme.NoActionBar"></activity>
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android:theme="@style/AppTheme.NoActionBar" />
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<activity android:name=".SubscriptionActivity" />
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<activity android:name=".CallsActivity">
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<intent-filter>
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@ -27,6 +27,7 @@ public class CallsActivity extends AppCompatActivity {
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private static final String RECONNECT_NODE = "reconnect_node";
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private static final String TEST_BRAINKEY_DERIVATION = "test_brainkey_derivation";
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private static final String CREATE_HTLC = "create_htlc";
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@BindView(R.id.call_list)
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RecyclerView mRecyclerView;
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@ -83,7 +84,8 @@ public class CallsActivity extends AppCompatActivity {
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RPC.CALL_BROADCAST_TRANSACTION,
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RPC.CALL_GET_TRANSACTION,
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RECONNECT_NODE,
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TEST_BRAINKEY_DERIVATION
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TEST_BRAINKEY_DERIVATION,
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CREATE_HTLC
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};
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@NonNull
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@ -108,7 +110,9 @@ public class CallsActivity extends AppCompatActivity {
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intent = new Intent(CallsActivity.this, RemoveNodeActivity.class);
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} else if (selectedCall.equals(TEST_BRAINKEY_DERIVATION)){
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intent = new Intent(CallsActivity.this, BrainkeyActivity.class);
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} else {
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} else if (selectedCall.equals(CREATE_HTLC)){
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intent = new Intent(CallsActivity.this, HtlcActivity.class);
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}else {
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intent = new Intent(CallsActivity.this, PerformCallActivity.class);
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intent.putExtra(Constants.KEY_SELECTED_CALL, selectedCall);
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}
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@ -0,0 +1,137 @@
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package cy.agorise.labs.sample;
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import android.content.ComponentName;
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import android.os.Bundle;
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import android.os.IBinder;
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import android.util.Log;
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import com.google.common.primitives.UnsignedLong;
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import org.bitcoinj.core.ECKey;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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import java.util.ArrayList;
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import cy.agorise.graphenej.Address;
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import cy.agorise.graphenej.Asset;
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import cy.agorise.graphenej.AssetAmount;
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import cy.agorise.graphenej.BaseOperation;
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import cy.agorise.graphenej.BlockData;
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import cy.agorise.graphenej.BrainKey;
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import cy.agorise.graphenej.HtlcHash;
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import cy.agorise.graphenej.HtlcHashType;
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import cy.agorise.graphenej.Transaction;
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import cy.agorise.graphenej.UserAccount;
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import cy.agorise.graphenej.Util;
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import cy.agorise.graphenej.api.ConnectionStatusUpdate;
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import cy.agorise.graphenej.api.android.RxBus;
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import cy.agorise.graphenej.api.calls.BroadcastTransaction;
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import cy.agorise.graphenej.api.calls.GetDynamicGlobalProperties;
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import cy.agorise.graphenej.models.DynamicGlobalProperties;
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import cy.agorise.graphenej.models.JsonRpcResponse;
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import cy.agorise.graphenej.operations.CreateHtlcOperation;
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import cy.agorise.labs.sample.fragments.CreateHtlcFragment;
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import io.reactivex.android.schedulers.AndroidSchedulers;
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import io.reactivex.disposables.Disposable;
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import io.reactivex.functions.Consumer;
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public class HtlcActivity extends ConnectedActivity implements CreateHtlcFragment.HtlcListener {
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private String TAG = this.getClass().getName();
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private final short PREIMAGE_LENGTH = 32;
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private CreateHtlcOperation createHtlcOperation;
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private Disposable mDisposable;
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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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setContentView(R.layout.activity_htlc);
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}
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@Override
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protected void onResume() {
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super.onResume();
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mDisposable = RxBus.getBusInstance()
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.asFlowable()
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.observeOn(AndroidSchedulers.mainThread())
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.subscribe(new Consumer<Object>() {
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@Override
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public void accept(Object message) throws Exception {
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if(message instanceof ConnectionStatusUpdate){
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// TODO: Update UI ?
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}else if(message instanceof JsonRpcResponse){
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handleJsonRpcResponse((JsonRpcResponse) message);
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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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protected void onPause() {
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super.onPause();
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if(!mDisposable.isDisposed())
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mDisposable.dispose();
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}
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@Override
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public void onHtlcProposal(String from, String to, Double amount, Long timelock) {
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Log.d(TAG,"onHtlcProposal");
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UserAccount sourceAccount = new UserAccount(from);
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UserAccount destinationAccount = new UserAccount(to);
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AssetAmount fee = new AssetAmount(UnsignedLong.valueOf("86726"), new Asset("1.3.0"));
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AssetAmount operationAmount = new AssetAmount(UnsignedLong.valueOf(Double.valueOf(amount * 100000).longValue()), new Asset("1.3.0"));
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SecureRandom secureRandom = new SecureRandom();
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byte[] preimage = new byte[PREIMAGE_LENGTH];
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secureRandom.nextBytes(preimage);
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try {
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byte[] hash = Util.htlcHash(preimage, HtlcHashType.RIPEMD160);
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HtlcHash htlcHash = new HtlcHash(HtlcHashType.RIPEMD160, hash);
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// Creating a HTLC operation, used later.
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createHtlcOperation = new CreateHtlcOperation(fee, sourceAccount, destinationAccount, operationAmount, htlcHash, PREIMAGE_LENGTH, timelock.intValue());
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// Requesting dynamic network parameters
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long id = mNetworkService.sendMessage(new GetDynamicGlobalProperties(), GetDynamicGlobalProperties.REQUIRED_API);
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Log.d(TAG,"sendMessage returned: " + id);
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} catch (NoSuchAlgorithmException e) {
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Log.e(TAG,"NoSuchAlgorithmException while trying to create HTLC operation. Msg: " + e.getMessage());
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}
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}
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private void handleJsonRpcResponse(JsonRpcResponse jsonRpcResponse){
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Log.d(TAG,"handleJsonRpcResponse");
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if(jsonRpcResponse.error == null && jsonRpcResponse.result instanceof DynamicGlobalProperties){
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DynamicGlobalProperties dynamicGlobalProperties = (DynamicGlobalProperties) jsonRpcResponse.result;
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Transaction tx = buildHltcTransaction(dynamicGlobalProperties);
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long id = mNetworkService.sendMessage(new BroadcastTransaction(tx), BroadcastTransaction.REQUIRED_API);
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Log.d(TAG,"sendMessage returned: " + id);
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}
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}
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private Transaction buildHltcTransaction(DynamicGlobalProperties dynamicProperties){
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// Deriving private key
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BrainKey brainKey = new BrainKey(">> Enter your own test Brainkey here <<", 0);
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ECKey privKey = brainKey.getPrivateKey();
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Address address = new Address(ECKey.fromPublicOnly(privKey.getPubKey()));
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// Use the valid BlockData just obtained from the blockchain
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long expirationTime = (dynamicProperties.time.getTime() / 1000) + Transaction.DEFAULT_EXPIRATION_TIME;
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String headBlockId = dynamicProperties.head_block_id;
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long headBlockNumber = dynamicProperties.head_block_number;
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BlockData blockData = new BlockData(headBlockNumber, headBlockId, expirationTime);
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// Using the HTLC create operaton just obtained before
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ArrayList<BaseOperation> operations = new ArrayList<>();
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operations.add(this.createHtlcOperation);
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// Return a newly built transaction
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return new Transaction(privKey, blockData, operations);
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}
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@Override
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public void onServiceConnected(ComponentName componentName, IBinder iBinder) { }
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@Override
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public void onServiceDisconnected(ComponentName componentName) { }
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}
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@ -0,0 +1,101 @@
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package cy.agorise.labs.sample.fragments;
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import android.content.Context;
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import android.os.Bundle;
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import android.support.design.widget.TextInputEditText;
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import android.support.v4.app.Fragment;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.Toast;
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import butterknife.BindView;
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import butterknife.ButterKnife;
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import butterknife.OnClick;
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import cy.agorise.labs.sample.R;
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/**
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* A simple {@link Fragment} subclass.
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*/
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public class CreateHtlcFragment extends Fragment {
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private final String TAG = this.getClass().getName();
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@BindView(R.id.from)
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TextInputEditText fromField;
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@BindView(R.id.to)
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TextInputEditText toField;
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@BindView(R.id.amount)
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TextInputEditText amountField;
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@BindView(R.id.timelock)
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TextInputEditText timelockField;
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// Parent activity, which must implement the HtlcListener interface.
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private HtlcListener mListener;
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public CreateHtlcFragment() {
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// Required empty public constructor
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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View view = inflater.inflate(R.layout.fragment_create_htlc, container, false);
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ButterKnife.bind(this, view);
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return view;
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}
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@OnClick(R.id.button_create)
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public void onSendClicked(View v){
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Log.d(TAG,"onSendClicked");
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String from = fromField.getText().toString();
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String to = toField.getText().toString();
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Double amount = null;
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Long timeLock = null;
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try{
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amount = Double.parseDouble(amountField.getText().toString());
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}catch(NumberFormatException e){
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amountField.setError("Invalid amount");
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}
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try{
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timeLock = Long.parseLong(timelockField.getText().toString());
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}catch(NumberFormatException e){
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timelockField.setError("Invalid value");
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}
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Log.d(TAG,"amount: " + amount + ", timelock: " + timeLock);
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if(amount != null && timeLock != null){
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Toast.makeText(getContext(), "Should be sending message up", Toast.LENGTH_SHORT).show();
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mListener.onHtlcProposal(from, to, amount, timeLock);
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}
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}
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@Override
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public void onAttach(Context context) {
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super.onAttach(context);
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if(context instanceof HtlcListener){
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mListener = (HtlcListener) context;
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}else{
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throw new ClassCastException(context.toString() + " must implement the HtlcListener interface!");
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}
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}
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/**
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* Interface to be implemented by the parent activity.
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*/
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public interface HtlcListener {
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/**
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* Method used to notify the parent activity of the request to create an HTLC with the following parameters.
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*
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* @param from Source account id.
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* @param to Destination account id.
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* @param amount The amount of BTS to propose the HTLC.
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* @param timelock The timelock in seconds.
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*/
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void onHtlcProposal(String from, String to, Double amount, Long timelock);
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}
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}
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@ -0,0 +1,30 @@
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package cy.agorise.labs.sample.fragments;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import cy.agorise.labs.sample.R;
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/**
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* A simple {@link Fragment} subclass.
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*/
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public class PrintResponseFragment extends Fragment {
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public PrintResponseFragment() {
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// Required empty public constructor
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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// Inflate the layout for this fragment
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return inflater.inflate(R.layout.fragment_print_response, container, false);
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}
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}
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@ -0,0 +1,18 @@
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:orientation="vertical"
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tools:context=".HtlcActivity">
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<fragment android:name="cy.agorise.labs.sample.fragments.PrintResponseFragment"
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android:id="@+id/fragment_print_response"
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android:layout_weight="0.4"
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android:layout_height="0dp"
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android:layout_width="match_parent"/>
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<fragment android:name="cy.agorise.labs.sample.fragments.CreateHtlcFragment"
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android:id="@+id/fragment_htlc_parameters"
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android:layout_weight="0.6"
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android:layout_height="0dp"
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android:layout_width="match_parent"/>
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</LinearLayout>
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@ -0,0 +1,71 @@
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<?xml version="1.0" encoding="utf-8"?>
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<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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xmlns:app="http://schemas.android.com/apk/res-auto"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:layout_margin="16dp"
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tools:context=".fragments.CreateHtlcFragment">
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<android.support.design.widget.TextInputLayout
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android:id="@+id/container_from"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:hint="@string/hint_from"
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app:layout_constraintBottom_toTopOf="@+id/container_to"
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app:layout_constraintTop_toTopOf="parent">
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<android.support.design.widget.TextInputEditText
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android:id="@+id/from"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:text="1.2.1029856" />
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</android.support.design.widget.TextInputLayout>
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<android.support.design.widget.TextInputLayout
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android:id="@+id/container_to"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:hint="@string/hint_to"
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app:layout_constraintBottom_toTopOf="@+id/container_amount"
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app:layout_constraintTop_toBottomOf="@id/container_from">
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<android.support.design.widget.TextInputEditText
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android:id="@+id/to"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:text="1.2.153769" />
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</android.support.design.widget.TextInputLayout>
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<android.support.design.widget.TextInputLayout
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android:id="@+id/container_amount"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:hint="@string/hint_amount"
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app:layout_constraintBottom_toTopOf="@+id/container_timelock"
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app:layout_constraintTop_toBottomOf="@+id/container_to">
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<android.support.design.widget.TextInputEditText
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android:id="@+id/amount"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:inputType="numberDecimal"
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android:singleLine="true"
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android:nextFocusDown="@+id/timelock"/>
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</android.support.design.widget.TextInputLayout>
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<android.support.design.widget.TextInputLayout
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android:id="@+id/container_timelock"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:hint="@string/hint_timelock"
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app:layout_constraintBottom_toTopOf="@+id/button_create"
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app:layout_constraintTop_toBottomOf="@id/container_amount">
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<android.support.design.widget.TextInputEditText
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android:id="@+id/timelock"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:inputType="number"/>
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</android.support.design.widget.TextInputLayout>
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<Button
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android:id="@+id/button_create"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:text="@string/action_send"
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app:layout_constraintBottom_toBottomOf="parent"/>
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</android.support.constraint.ConstraintLayout>
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@ -0,0 +1,10 @@
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<?xml version="1.0" encoding="utf-8"?>
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<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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tools:context=".fragments.PrintResponseFragment">
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<TextView
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android:layout_width="match_parent"
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android:layout_height="match_parent"/>
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</FrameLayout>
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@ -70,4 +70,10 @@
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<string name="hint_brainkey">Brainkey</string>
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<string name="hint_pubkey">Desired public key / address</string>
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<string name="button_generate">Generate public key</string>
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<!-- CreateHtlcFragment strings -->
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<string name="hint_from">From account</string>
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<string name="hint_to">To account</string>
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<string name="hint_amount">Amount</string>
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<string name="hint_timelock">Time to lock (in seconds)</string>
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</resources>
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