ethereum and tezos transaction signing complete for android

EjaraApp · Sep 20, 2021 · 8725ccc · 8725ccc
1 parent 38becc7
commit 8725ccc
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Showing 6 changed files with 161 additions and 12 deletions.
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
diff --git a/android/build.gradle b/android/build.gradle
@@ -18,6 +18,13 @@ rootProject.allprojects {
     repositories {
         google()
         jcenter()
+        maven {
+            url = uri("https://maven.pkg.github.com/trustwallet/wallet-core")
+            credentials {
+                username = "baahkusi"//System.getenv("GITHUB_USER")
+                password = "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" //System.getenv("GITHUB_TOKEN")
+            }
+        }
     }
 }
 
@@ -35,10 +42,13 @@ android {
     }
 
     dependencies {
-        implementation "com.trustwallet:wallet-core:0.12.31"
+        implementation "com.trustwallet:wallet-core:2.6.25"
     }
 }
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 }
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
+}
diff --git a/android/src/main/kotlin/africa/ejara/trustdart/TrustdartPlugin.kt b/android/src/main/kotlin/africa/ejara/trustdart/TrustdartPlugin.kt
@@ -1,6 +1,7 @@
 package africa.ejara.trustdart
 
 import androidx.annotation.NonNull
+import org.json.JSONObject
 
 import io.flutter.embedding.engine.plugins.FlutterPlugin
 import io.flutter.plugin.common.MethodCall
@@ -12,6 +13,7 @@ import io.flutter.plugin.common.MethodChannel.Result
 import wallet.core.jni.HDWallet
 import wallet.core.jni.CoinType
 import wallet.core.jni.BitcoinAddress
+import wallet.core.java.AnySigner
 
 /** TrustdartPlugin */
 class TrustdartPlugin: FlutterPlugin, MethodCallHandler {
@@ -56,7 +58,7 @@ class TrustdartPlugin: FlutterPlugin, MethodCallHandler {
           val address: Map<String, String?>? = generateAddressForCoin(path, coin)
           if (address == null) result.error("address_null", "failed to generate address", null) else result.success(address)
         } else {
-          result.error("arguments_null", "$path and $coin cannot be null", null)
+          result.error("arguments_null", "[path] and [coin] cannot be null", null)
         }
       }
       "validateAddressForCoin" -> {
@@ -69,8 +71,16 @@ class TrustdartPlugin: FlutterPlugin, MethodCallHandler {
           result.error("arguments_null", "$address and $coin cannot be null", null)
         }
       }
-      "buildTransaction" -> {
-        result.notImplemented()
+      "buildAndSignTransaction" -> {
+        val coin: String? = call.argument("coin")
+        val path: String? = call.argument("path")
+        val txData: Map<String, String>? = call.argument("txData")
+        if (txData != null && coin != null && path != null) {
+          val txHash: String? = buildAndSignTransaction(coin, path, txData)
+          if (txHash == null) result.error("txhash_null", "failed to buid and sign transaction", null) else result.success(txHash)
+        } else {
+          result.error("arguments_null", "[txData], [coin] and [path] cannot be null", null)
+        }
       }
       else -> result.notImplemented()
     }
@@ -81,17 +91,19 @@ class TrustdartPlugin: FlutterPlugin, MethodCallHandler {
   }
 
   private fun generateAddressForCoin(path: String, coin: String): Map<String, String?>? {
-    val privateKey = wallet.getKey(path)
     return when(coin) {
       "BTC" -> {
+        val privateKey = wallet.getKey(CoinType.BITCOIN, path)
         val publicKey = privateKey.getPublicKeySecp256k1(true)
         val address = BitcoinAddress(publicKey, CoinType.BITCOIN.p2pkhPrefix())
         mapOf("legacy" to address.description(), "segwit" to CoinType.BITCOIN.deriveAddress(privateKey))
       }
       "ETH" -> {
+        val privateKey = wallet.getKey(CoinType.ETHEREUM, path)
         mapOf("legacy" to CoinType.ETHEREUM.deriveAddress(privateKey))
       }
       "XTZ" -> {
+        val privateKey = wallet.getKey(CoinType.TEZOS, path)
         mapOf("legacy" to CoinType.TEZOS.deriveAddress(privateKey))
       }
       else -> null
@@ -112,4 +124,38 @@ class TrustdartPlugin: FlutterPlugin, MethodCallHandler {
       else -> false
     }
   }
+
+  private fun buildAndSignTransaction(coin: String, path: String, txData: Map<String, String>): String? {
+    return when(coin) {
+      "XTZ" -> {
+        buildAndSignTezosTransaction(path, txData)
+      }
+      "ETH" -> {
+        buildAndSignEthereumTransaction(path, txData)
+      }
+      "BTC" -> {
+        buildAndSignBitcoinTransaction(path, txData)
+      }
+      else -> null
+    }
+  }
+
+  private fun buildAndSignTezosTransaction(path: String, txData: Map<String, String>): String? {
+    val privateKey = wallet.getKey(CoinType.TEZOS, path)
+    val opJson =  JSONObject(txData).toString();
+    val result = AnySigner.signJSON(opJson, privateKey.data(), CoinType.TEZOS.value())
+    return result
+  }
+
+  private fun buildAndSignEthereumTransaction(path: String, txData: Map<String, String>): String? {
+    val privateKey = wallet.getKey(CoinType.ETHEREUM, path)
+    val opJson =  JSONObject(txData).toString();
+    val result = AnySigner.signJSON(opJson, privateKey.data(), CoinType.ETHEREUM.value())
+    return result
+  }
+
+  private fun buildAndSignBitcoinTransaction(path: String, txData: Map<String, String>): String? {
+    val privateKey = wallet.getKey(CoinType.BITCOIN, path)
+    return null;
+  }
 }
diff --git a/example/lib/main.dart b/example/lib/main.dart
@@ -22,6 +22,50 @@ class _MyAppState extends State<MyApp> {
     initPlatformState();
   }
 
+  Map _getTezosOperation() {
+    return {
+      "operationList": {
+        "branch": "BL8euoCWqNCny9AR3AKjnpi38haYMxjei1ZqNHuXMn19JSQnoWp",
+        "operations": [{
+          "source": "tz1XVJ8bZUXs7r5NV8dHvuiBhzECvLRLR3jW",
+          "fee": 1272,
+          "counter": 30738,
+          "gasLimit": 10100,
+          "storageLimit": 257,
+          "kind": 107,
+          "revealOperationData": {
+            "publicKey": "QpqYbIBypAofOj4qtaWBm7Gy+2mZPFAEg3gVudxVkj4="
+          }
+        }, {
+          "source": "tz1XVJ8bZUXs7r5NV8dHvuiBhzECvLRLR3jW",
+          "fee": 1272,
+          "counter": 30739,
+          "gasLimit": 10100,
+          "storageLimit": 257,
+          "kind": 108,
+          "transactionOperationData": {
+            "destination": "tz1XVJ8bZUXs7r5NV8dHvuiBhzECvLRLR3jW",
+            "amount": 1
+          }
+        }]
+      }
+    };
+  }
+
+  Map _getEthereumOperation() {
+    return {
+      "chainId": "AQ==",
+      "gasPrice": "1pOkAA==",
+      "gasLimit": "Ugg=",
+      "toAddress": "0x7d8bf18C7cE84b3E175b339c4Ca93aEd1dD166F1",
+      "transaction": {
+        "transfer": {
+          "amount":"A0i8paFgAA=="
+        }
+      }
+    };
+  }
+
   // Platform messages are asynchronous, so we initialize in an async method.
   Future<void> initPlatformState() async {
     String platformVersion;
@@ -35,9 +79,12 @@ class _MyAppState extends State<MyApp> {
       String dondo = "imitate embody law mammal exotic transfer roof hope price swift ordinary uncle";
       bool wallet = await Trustdart.importWalletFromMnemonic(dondo);
       print(wallet);
-      Map btcAddress = await Trustdart.generateAddressForCoin('BTC', "m/44'/0'/0'/0/0");
-      Map ethAddress = await Trustdart.generateAddressForCoin('ETH', "m/44'/60'/0'/0/0");
-      Map xtzAddress = await Trustdart.generateAddressForCoin('XTZ', "m/44'/1729'/0'/0'");
+      String btcPath = "m/44'/0'/0'/0/0";
+      String ethPath = "m/44'/60'/0'/0/0";
+      String xtzPath = "m/44'/1729'/0'/0'";
+      Map btcAddress = await Trustdart.generateAddressForCoin('BTC', btcPath);
+      Map ethAddress = await Trustdart.generateAddressForCoin('ETH', ethPath);
+      Map xtzAddress = await Trustdart.generateAddressForCoin('XTZ', xtzPath);
       print([btcAddress, ethAddress, xtzAddress]);
       bool isBtcLegacyValid = await Trustdart.validateAddressForCoin('BTC', btcAddress['legacy']);
       bool isBtcSegWitValid = await Trustdart.validateAddressForCoin('BTC', btcAddress['segwit']);
@@ -48,6 +95,10 @@ class _MyAppState extends State<MyApp> {
       bool invalidETH = await Trustdart.validateAddressForCoin('ETH', xtzAddress['legacy']);
       bool invalidXTZ = await Trustdart.validateAddressForCoin('XTZ', btcAddress['legacy']);
       print([invalidBTC, invalidETH, invalidXTZ]);
+
+      String xtzTx = await Trustdart.buildAndSignTransaction('XTZ', xtzPath, _getTezosOperation());
+      String ethTx = await Trustdart.buildAndSignTransaction('ETH', ethPath, _getEthereumOperation());
+      print([xtzTx, ethTx]);
     } on PlatformException {
       platformVersion = 'Failed to get platform version.';
     }

diff --git a/lib/trustdart.dart b/lib/trustdart.dart
@@ -37,4 +37,13 @@ class Trustdart {
     });
     return isAddressValid;
   }
+
+  static Future<String> buildAndSignTransaction(String coin, String path, Map txData) async {
+    final txHash = await _channel.invokeMethod('buildAndSignTransaction', <String, dynamic> {
+      'coin': coin,
+      'txData': txData,
+      'path': path,
+    });
+    return txHash;
+  }
 }
diff --git a/trustdart.iml b/trustdart.iml
@@ -11,6 +11,9 @@
       <excludeFolder url="file://$MODULE_DIR$/example/.dart_tool" />
       <excludeFolder url="file://$MODULE_DIR$/example/.pub" />
       <excludeFolder url="file://$MODULE_DIR$/example/build" />
+      <excludeFolder url="file://$MODULE_DIR$/example/ios/.symlinks/plugins/trustdart/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/example/ios/.symlinks/plugins/trustdart/build" />
+      <excludeFolder url="file://$MODULE_DIR$/example/ios/.symlinks/plugins/trustdart/.dart_tool" />
     </content>
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="Dart SDK" level="project" />