Stillman Digital LLC integration

server_extensions_extra/src/main/java/com/generalbytes/batm/server/extensions/extra/bitcoin/BitcoinExtension.java

@@ -37,6 +37,7 @@
 import com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.hitbtc.HitbtcExchange;
 import com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.enigma.EnigmaExchange;
 import com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.poloniex.PoloniexExchange;
+import com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.stillmandigital.StillmanDigitalExchange;
 import com.generalbytes.batm.server.extensions.extra.bitcoin.paymentprocessors.bitcoinpay.BitcoinPayPP;
 import com.generalbytes.batm.server.extensions.extra.bitcoin.paymentprocessors.coinofsale.CoinOfSalePP;
 import com.generalbytes.batm.server.extensions.extra.bitcoin.sources.bitkub.BitKubRateSource;
@@ -221,6 +222,11 @@ public IExchange createExchange(String paramString) {
                 String apiKey = paramTokenizer.nextToken();
                 String apiSecret = paramTokenizer.nextToken();
                 return new BitbuyExchange(apiKey, apiSecret);
+            } else if ("stillmandigital".equalsIgnoreCase(prefix)) {
+                String apiKey = paramTokenizer.nextToken();
+                String apiSecret = paramTokenizer.nextToken();
+                boolean useSandbox = paramTokenizer.hasMoreTokens() && paramTokenizer.nextToken().equals("sandbox");
+                return new StillmanDigitalExchange(apiKey, apiSecret, useSandbox);
             }
         }
         } catch (Exception e) {
@@ -585,6 +591,11 @@ public IRateSource createRateSource(String sourceLogin) {
                 String apiKey = st.nextToken();
                 String apiSecret = st.nextToken();
                 return new BitbuyExchange(apiKey, apiSecret);
+            } else if ("stillmandigital".equalsIgnoreCase(rsType)) {
+                String apiKey = st.nextToken();
+                String apiSecret = st.nextToken();
+                boolean useSandbox = st.hasMoreTokens() && st.nextToken().equals("sandbox");
+                return new StillmanDigitalExchange(apiKey, apiSecret, useSandbox);
             }
         }
         } catch (Exception e) {

server_extensions_extra/src/main/java/com/generalbytes/batm/server/extensions/extra/bitcoin/exchanges/stillmandigital/CurrentTimeFactory.java

@@ -0,0 +1,34 @@
+/*************************************************************************************
+ * Copyright (C) 2014-2023 GENERAL BYTES s.r.o. All rights reserved.
+ *
+ * This software may be distributed and modified under the terms of the GNU
+ * General Public License version 2 (GPL2) as published by the Free Software
+ * Foundation and appearing in the file GPL2.TXT included in the packaging of
+ * this file. Please note that GPL2 Section 2[b] requires that all works based
+ * on this software must also be made publicly available under the terms of
+ * the GPL2 ("Copyleft").
+ *
+ * Contact information
+ * -------------------
+ *
+ * GENERAL BYTES s.r.o.
+ * Web      :  http://www.generalbytes.com
+ *
+ ************************************************************************************/
+package com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.stillmandigital;
+
+import si.mazi.rescu.SynchronizedValueFactory;
+
+import java.time.Clock;
+import java.util.concurrent.TimeUnit;
+
+public class CurrentTimeFactory  implements SynchronizedValueFactory<Long> {
+
+    private static final Clock UTC_CLOCK = Clock.systemUTC();
+
+
+    @Override
+    public Long createValue() {
+        return TimeUnit.MILLISECONDS.toSeconds(UTC_CLOCK.millis());
+    }
+}

server_extensions_extra/src/main/java/com/generalbytes/batm/server/extensions/extra/bitcoin/exchanges/stillmandigital/IStillmanDigitalAPI.java

@@ -0,0 +1,78 @@
+/*************************************************************************************
+ * Copyright (C) 2014-2023 GENERAL BYTES s.r.o. All rights reserved.
+ *
+ * This software may be distributed and modified under the terms of the GNU
+ * General Public License version 2 (GPL2) as published by the Free Software
+ * Foundation and appearing in the file GPL2.TXT included in the packaging of
+ * this file. Please note that GPL2 Section 2[b] requires that all works based
+ * on this software must also be made publicly available under the terms of
+ * the GPL2 ("Copyleft").
+ *
+ * Contact information
+ * -------------------
+ *
+ * GENERAL BYTES s.r.o.
+ * Web      :  http://www.generalbytes.com
+ *
+ ************************************************************************************/
+package com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.stillmandigital;
+
+import com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.stillmandigital.dto.*;
+import com.generalbytes.batm.server.extensions.util.net.RateLimitingInterceptor;
+import si.mazi.rescu.ClientConfig;
+import si.mazi.rescu.Interceptor;
+import si.mazi.rescu.RestProxyFactory;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.GET;
+import javax.ws.rs.HeaderParam;
+import javax.ws.rs.POST;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.MediaType;
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+import java.util.List;
+
+@Path("")
+@Produces(MediaType.APPLICATION_JSON)
+public interface IStillmanDigitalAPI {
+
+    String API_EXPIRES_HEADER = "api-timestamp";
+
+    static IStillmanDigitalAPI create(String apiKey, String apiSecret,
+                                      boolean useSandbox) throws GeneralSecurityException {
+        return create(apiKey, apiSecret,
+            useSandbox ? "https://sandbox-api.stillmandigital.com" : "https://api.stillmandigital.com");
+    }
+
+    static IStillmanDigitalAPI create(String apiKey, String apiSecret, String baseUrl) throws GeneralSecurityException {
+        final ClientConfig config = new ClientConfig();
+        config.addDefaultParam(HeaderParam.class, "api-key", apiKey);
+        config.addDefaultParam(HeaderParam.class, API_EXPIRES_HEADER, new CurrentTimeFactory());
+        config.addDefaultParam(HeaderParam.class, "api-signature", new StillmanDigitalDigest(apiSecret));
+        Interceptor interceptor = new RateLimitingInterceptor(IStillmanDigitalAPI.class, 25, 30_000);
+        return RestProxyFactory.createProxy(IStillmanDigitalAPI.class, baseUrl, config, interceptor);
+    }
+
+    @POST
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Path("/v1/trading/rate")
+    Rate requestRate(RateRequest request) throws IOException;
+
+    @GET
+    @Path("/v1/balances")
+    List<RowBalanceByAssetResponse> getBalance() throws IOException;
+
+    @POST
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Path("/v1/trading/new")
+    NewOrderResponse sendOrder(OrderRequest orderRequest) throws IOException;
+
+    @GET
+    @Path("/v1/orders/{id}")
+    RowOrderResponse getOrder(@PathParam("id")  long orderId) throws IOException;
+
+}

server_extensions_extra/src/main/java/com/generalbytes/batm/server/extensions/extra/bitcoin/exchanges/stillmandigital/StillmanDigitalDigest.java

@@ -0,0 +1,60 @@
+/*************************************************************************************
+ * Copyright (C) 2014-2023 GENERAL BYTES s.r.o. All rights reserved.
+ *
+ * This software may be distributed and modified under the terms of the GNU
+ * General Public License version 2 (GPL2) as published by the Free Software
+ * Foundation and appearing in the file GPL2.TXT included in the packaging of
+ * this file. Please note that GPL2 Section 2[b] requires that all works based
+ * on this software must also be made publicly available under the terms of
+ * the GPL2 ("Copyleft").
+ *
+ * Contact information
+ * -------------------
+ *
+ * GENERAL BYTES s.r.o.
+ * Web      :  http://www.generalbytes.com
+ *
+ ************************************************************************************/
+package com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.stillmandigital;
+
+import com.generalbytes.batm.server.coinutil.Hex;
+import si.mazi.rescu.ParamsDigest;
+import si.mazi.rescu.RestInvocation;
+
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.GeneralSecurityException;
+
+public class StillmanDigitalDigest implements ParamsDigest {
+
+    private static final String HMAC_SHA256_ALGORITHM = "HmacSHA256";
+    private static final Charset CHARSET = StandardCharsets.UTF_8;
+
+    private final Mac mac;
+
+    public StillmanDigitalDigest(String apiSecret) throws GeneralSecurityException {
+        mac = Mac.getInstance(HMAC_SHA256_ALGORITHM);
+        mac.init(new SecretKeySpec(apiSecret.getBytes(CHARSET), HMAC_SHA256_ALGORITHM));
+    }
+
+    public String digestParams(RestInvocation restInvocation) {
+        // String dataForSign = method + BALANCE_URL_PART + validUntilSeconds + body;
+        String dataForSign = restInvocation.getHttpMethod()
+            + restInvocation.getMethodPath()
+            + restInvocation.getHttpHeadersFromParams().get(IStillmanDigitalAPI.API_EXPIRES_HEADER)
+            + restInvocation.getRequestBody();
+        return signHmacSha256(dataForSign);
+    }
+
+    private String signHmacSha256(String data) {
+        byte[] signData = mac.doFinal(data.getBytes(StandardCharsets.UTF_8));
+
+        return Hex.bytesToHexString(signData);
+    }
+}
+
+
+
+

server_extensions_extra/src/main/java/com/generalbytes/batm/server/extensions/extra/bitcoin/exchanges/stillmandigital/StillmanDigitalExchange.java

@@ -0,0 +1,183 @@
+/*************************************************************************************
+ * Copyright (C) 2014-2023 GENERAL BYTES s.r.o. All rights reserved.
+ *
+ * This software may be distributed and modified under the terms of the GNU
+ * General Public License version 2 (GPL2) as published by the Free Software
+ * Foundation and appearing in the file GPL2.TXT included in the packaging of
+ * this file. Please note that GPL2 Section 2[b] requires that all works based
+ * on this software must also be made publicly available under the terms of
+ * the GPL2 ("Copyleft").
+ *
+ * Contact information
+ * -------------------
+ *
+ * GENERAL BYTES s.r.o.
+ * Web      :  http://www.generalbytes.com
+ *
+ ************************************************************************************/
+package com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.stillmandigital;
+
+import com.generalbytes.batm.common.currencies.CryptoCurrency;
+import com.generalbytes.batm.common.currencies.FiatCurrency;
+import com.generalbytes.batm.server.extensions.IExchangeAdvanced;
+import com.generalbytes.batm.server.extensions.IRateSourceAdvanced;
+import com.generalbytes.batm.server.extensions.ITask;
+import com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.stillmandigital.dto.RateRequest;
+import com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.stillmandigital.dto.RowBalanceByAssetResponse;
+import com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.stillmandigital.dto.Side;
+import com.generalbytes.batm.server.extensions.extra.bitcoin.exchanges.stillmandigital.dto.Rate;
+import com.google.common.collect.ImmutableSet;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.math.BigDecimal;
+import java.security.GeneralSecurityException;
+import java.util.Objects;
+import java.util.Set;
+
+public class StillmanDigitalExchange implements IExchangeAdvanced, IRateSourceAdvanced {
+    private static final Logger log = LoggerFactory.getLogger("batm.master.exchange.StillmanDigitalExchange");
+    public static final String SEPARATOR = "/";
+
+    private final String preferredFiatCurrency = FiatCurrency.USD.getCode();
+    private final IStillmanDigitalAPI api;
+
+    public StillmanDigitalExchange(String apiKey,
+                                   String apiSecret,
+                                   boolean useSandbox) throws GeneralSecurityException {
+        this.api = IStillmanDigitalAPI.create(apiKey, apiSecret, useSandbox);
+    }
+
+    // for tests only
+    StillmanDigitalExchange(String apiKey,
+                            String apiSecret,
+                            String baseUrl) throws GeneralSecurityException {
+        this.api = IStillmanDigitalAPI.create(apiKey, apiSecret, baseUrl);
+    }
+
+    private static final Set<String> fiatCurrencies = ImmutableSet.of(
+        FiatCurrency.USD.getCode());
+
+    private static final Set<String> cryptoCurrencies = ImmutableSet.of(
+        CryptoCurrency.BTC.getCode(),
+        CryptoCurrency.ETH.getCode());
+
+    @Override
+    public Set<String> getCryptoCurrencies() {
+        return cryptoCurrencies;
+    }
+
+    @Override
+    public Set<String> getFiatCurrencies() {
+        return fiatCurrencies;
+    }
+
+    @Override
+    public String getPreferredFiatCurrency() {
+        return preferredFiatCurrency;
+    }
+
+    @Override
+    public BigDecimal getCryptoBalance(String cryptoCurrency) {
+        try {
+            for (RowBalanceByAssetResponse assetData : api.getBalance()) {
+                if (Objects.equals(cryptoCurrency, assetData.asset)) {
+                    // crypto is interesting in terms on how much client can withdraw
+                    return assetData.total;
+                }
+            }
+        } catch (IOException e) {
+            log.error("Error", e);
+        }
+        return null;
+    }
+
+    @Override
+    public BigDecimal getFiatBalance(String fiatCurrency) {
+        try {
+            for (RowBalanceByAssetResponse assetData : api.getBalance()) {
+                if (Objects.equals(fiatCurrency, assetData.asset)) {
+                    // fiat is interesting in terms on how much client can spent to buy crypto, due this just FREE
+                    return assetData.free;
+                }
+            }
+        } catch (IOException e) {
+            log.error("Error", e);
+        }
+        return null;
+    }
+
+    @Override
+    public String sendCoins(String destinationAddress,
+                            BigDecimal amount, String cryptoCurrency, String description) {
+        return "Plz contact your manager for withdraw";
+    }
+
+    @Override
+    public String getDepositAddress(String cryptoCurrency) {
+        return null;
+    }
+
+    @Override
+    public ITask createPurchaseCoinsTask(BigDecimal amount, String cryptoCurrency, String fiatCurrencyToUse, String description) {
+        return new StillmanOrderTask(api, Side.BUY, cryptoCurrency + SEPARATOR + fiatCurrencyToUse, amount, log);
+    }
+
+    @Override
+    public ITask createSellCoinsTask(BigDecimal amount, String cryptoCurrency, String fiatCurrencyToUse, String description) {
+        return new StillmanOrderTask(api, Side.SELL, cryptoCurrency + SEPARATOR + fiatCurrencyToUse, amount, log);
+    }
+
+    @Override
+    public BigDecimal getExchangeRateForBuy(String cryptoCurrency, String fiatCurrency) {
+        try {
+            Rate rate = api.requestRate(new RateRequest(cryptoCurrency + SEPARATOR + fiatCurrency));
+            if (rate != null) {
+                return rate.buyRate;
+            }
+        } catch (IOException e) {
+            log.error("Error", e);
+        }
+        return null;
+    }
+
+    @Override
+    public BigDecimal getExchangeRateForSell(String cryptoCurrency, String fiatCurrency) {
+        try {
+            Rate rate = api.requestRate(new RateRequest(cryptoCurrency + SEPARATOR + fiatCurrency));
+            if (rate != null) {
+                return rate.sellRate;
+            }
+        } catch (IOException e) {
+            log.error("Error", e);
+        }
+        return null;
+    }
+
+    @Override
+    public BigDecimal calculateBuyPrice(String cryptoCurrency, String fiatCurrency, BigDecimal cryptoAmount) {
+        try {
+            Rate rate = api.requestRate(new RateRequest(cryptoCurrency + SEPARATOR + fiatCurrency, cryptoAmount));
+            if (rate != null && rate.buyRate != null) {
+                return rate.buyRate;
+            }
+        } catch (IOException e) {
+            log.error("Error", e);
+        }
+        return null;
+    }
+
+    @Override
+    public BigDecimal calculateSellPrice(String cryptoCurrency, String fiatCurrency, BigDecimal cryptoAmount) {
+        try {
+            Rate rate = api.requestRate(new RateRequest(cryptoCurrency + SEPARATOR + fiatCurrency, cryptoAmount));
+            if (rate != null && rate.sellRate != null) {
+                return rate.sellRate;
+            }
+        } catch (IOException e) {
+            log.error("Error", e);
+        }
+        return null;
+    }
+}