Adding magic bytes to network parameters, doing real validation for bitcoin addresses now

src/main/scala/org/scalacoin/config/NetworkParametersWrapper.scala

@@ -0,0 +1,38 @@
+package org.scalacoin.config
+
+import org.bitcoinj.core.NetworkParameters
+import org.bitcoinj.params.{MainNetParams, RegTestParams, TestNet3Params}
+
+/**
+ * Created by chris on 7/27/15.
+ */
+trait NetworkParametersWrapper {
+  def network : NetworkParameters
+  def p2pkhNetworkByte : Byte
+  def p2shNetworkByte : Byte
+}
+
+trait MainNet extends NetworkParametersWrapper {
+  override def network = MainNetParams.get
+  override def p2pkhNetworkByte = 0x00
+  override def p2shNetworkByte = 0x05
+}
+
+object MainNet extends MainNet
+
+trait TestNet3 extends NetworkParametersWrapper {
+  override def network = TestNet3Params.get
+  override def p2pkhNetworkByte = 0x6F
+  override def p2shNetworkByte = 196.toByte
+}
+
+object TestNet3 extends TestNet3
+
+trait RegTest extends NetworkParametersWrapper {
+  override def network = RegTestParams.get
+  override def p2pkhNetworkByte = TestNet3.p2pkhNetworkByte
+  override def p2shNetworkByte = TestNet3.p2shNetworkByte
+
+}
+
+object RegTest extends RegTest

src/main/scala/org/scalacoin/protocol/Address.scala

@@ -1,6 +1,7 @@
 package org.scalacoin.protocol
 
 import org.bitcoinj.core.{VersionedChecksummedBytes, Base58, Utils}
+import org.scalacoin.config.{RegTest, TestNet3, MainNet}
 
 case class AddressInfo(bitcoinAddress: BitcoinAddress, n_tx: Long, total_received: Long, total_sent: Long,
   final_balance: Long)
@@ -43,7 +44,14 @@ object BitcoinAddress {
    * @return
    */
   def p2shAddress(address : String) : Boolean = {
-    address.charAt(0) == '3' || address.charAt(0) == '2'
+    try {
+      val base58decodeChecked : Array[Byte] = Base58.decodeChecked(address)
+      val firstByte = base58decodeChecked(0)
+      ((firstByte == MainNet.p2shNetworkByte || firstByte == TestNet3.p2shNetworkByte) && base58decodeChecked.size == 21)
+    } catch {
+      case _ : Throwable => false
+    }
+
   }
 
   /**
@@ -59,8 +67,16 @@ object BitcoinAddress {
    * @return
    */
   def p2pkh(address : String) : Boolean = {
-    val firstChar = address.charAt(0)
-    firstChar == '1' || firstChar == 'm' || firstChar == 'n'
+    try {
+      val base58decodeChecked : Array[Byte] = Base58.decodeChecked(address)
+      val firstByte = base58decodeChecked(0)
+
+      ((firstByte == MainNet.p2pkhNetworkByte || firstByte == TestNet3.p2pkhNetworkByte ||
+        firstByte == RegTest.p2pkhNetworkByte) && base58decodeChecked.size == 21)
+    } catch {
+      case _ : Throwable =>  false
+    }
+
   }
 
   /**

src/main/scala/org/scalacoin/protocol/CommonStructures.scala

@@ -20,7 +20,6 @@ trait VarInt {
 case class NetworkVarInt( serialization : String) extends VarInt with ScalacoinUtil {
   override def length : BigInt = {
     val slice = hexToBigInt(serialization.slice(0,2))
-    println(slice)
     if (slice == 0xFD) hexToBigInt(serialization.slice(2,6))
     else if (slice == 0xFE) hexToBigInt(serialization.slice(2,10))
     else if (slice == 0xFF) hexToBigInt(serialization.slice(2,18))

src/test/scala/org/scalacoin/protocol/BitcoinAddressTest.scala

@@ -41,19 +41,6 @@ class BitcoinAddressTest extends FlatSpec with MustMatchers {
     }
   }
 
-  "3J98t1WpEZ73CNmQviecrnyiWr (26 characters) " must "be a valid bitcoin address" in {
-    val address = "3J98t1WpEZ73CNmQviecrnyiWr"
-    BitcoinAddress(address).value must be(address)
-  }
-
-  "3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLyy (35 characters)" must "be a valid bitcoin address" in {
-    val address = "3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLyy"
-    BitcoinAddress(address).value must be(address)
-  }
-
-
-
-
   "akJsoCcyh34FGPotxfEoSXGwFPCNAkyCgTA" must "be a valid asset address" in {
     val assetAddress = AssetAddress("akJsoCcyh34FGPotxfEoSXGwFPCNAkyCgTA")
     assetAddress.value must be ("akJsoCcyh34FGPotxfEoSXGwFPCNAkyCgTA")