Removing script types from ScriptPubKey's - this was redundant

src/main/scala/org/scalacoin/crypto/TransactionSignatureSerializer.scala

@@ -3,7 +3,6 @@ package org.scalacoin.crypto
 import org.scalacoin.currency.CurrencyUnits
 import org.scalacoin.marshallers.RawBitcoinSerializerHelper
 import org.scalacoin.marshallers.transaction.RawTransactionOutputParser
-import org.scalacoin.protocol.{MultiSignature, NonStandard, P2SH, P2PKH}
 import org.scalacoin.protocol.script._
 import org.scalacoin.protocol.transaction._
 import org.scalacoin.script.constant.ScriptToken

src/main/scala/org/scalacoin/protocol/script/ScriptPubKey.scala

@@ -23,7 +23,7 @@ sealed trait ScriptPubKey extends TransactionElement with BitcoinSLogger {
    */
   def asm : Seq[ScriptToken]
 
-  /**
+/*  /**
    * Returns the script type of this scriptPubKey
    * @return
    */
@@ -35,7 +35,7 @@ sealed trait ScriptPubKey extends TransactionElement with BitcoinSLogger {
       case _ if (asm.last == OP_CHECKMULTISIG) => MultiSignature
       case _ => NonStandard
     }
-  }
+  }*/
 
   //the addresses that the bitcoins correlated to the output
   def addresses : Seq[BitcoinAddress] = ???

src/main/scala/org/scalacoin/protocol/transaction/Transaction.scala

@@ -26,6 +26,7 @@ sealed trait Transaction extends TransactionElement {
 }
 
 case object EmptyTransaction extends Transaction {
+  override def txId = "0000000000000000000000000000000000000000000000000000000000000000"
   override def version = TransactionConstants.version
   override def inputs = Seq()
   override def outputs = Seq()

src/main/scala/org/scalacoin/protocol/transaction/TransactionOutput.scala

@@ -22,7 +22,7 @@ sealed trait TransactionOutput extends TransactionElement {
   override def hex = RawTransactionOutputParser.write(Seq(this))
 }
 
-case object TransactionOutput extends TransactionOutput {
+case object EmptyTransactionOutput extends TransactionOutput {
   override def value = CurrencyUnits.negativeSatoshi
   override def scriptPubKey = ScriptPubKeyFactory.empty
 }

src/main/scala/org/scalacoin/script/locktime/LockTimeInterpreter.scala

@@ -1,12 +1,14 @@
 package org.scalacoin.script.locktime
 
+import org.scalacoin.protocol.transaction.TransactionConstants
 import org.scalacoin.script.constant.{ScriptNumberImpl, ScriptNumber}
 import org.scalacoin.script.{ScriptProgramFactory, ScriptProgramImpl, ScriptProgram}
+import org.scalacoin.util.BitcoinSLogger
 
 /**
  * Created by chris on 2/8/16.
  */
-trait LockTimeInterpreter {
+trait LockTimeInterpreter extends BitcoinSLogger {
 
 
   /**
@@ -25,14 +27,18 @@ trait LockTimeInterpreter {
     require(program.script.headOption.isDefined && program.script.head == OP_CHECKLOCKTIMEVERIFY,
       "Script top must be OP_CHECKLOCKTIMEVERIFY")
     if (program.stack.size == 0) {
+      logger.warn("Transaction validation failing in OP_CHECKLOCKTIMEVERIFY because we have no stack items")
       ScriptProgramFactory.factory(program, program.stack, program.script.tail, false)
-    } else {
+    } else if (program.transaction.inputs(program.inputIndex).sequence == TransactionConstants.sequence) {
+      logger.warn("Transaction validation failing in OP_CHECKLOCKTIMEVERIFY because the sequence number is 0xffffffff")
+      ScriptProgramFactory.factory(program, program.stack, program.script.tail, false)
+    }
+    else {
       val isValid = program.stack.head match {
         case s : ScriptNumber if (s < ScriptNumberImpl(0)) => false
         case s : ScriptNumber if (s > ScriptNumberImpl(500000000) && program.transaction.lockTime < 500000000) => false
         case s : ScriptNumber if (s < ScriptNumberImpl(500000000) && program.transaction.lockTime > 500000000) => false
-        case s if (program.transaction.inputs.map(_.sequence == 0xffffffff).exists(_ == true)) => false
-        case _ => true
+        case _ => false
       }
       ScriptProgramFactory.factory(program,program.stack, program.script.tail, isValid)
     }

src/test/scala/org/scalacoin/marshallers/transaction/RawTransactionOutputParserTest.scala

@@ -1,7 +1,6 @@
 package org.scalacoin.marshallers.transaction
 
 import org.scalacoin.currency.{Satoshis, CurrencyUnits, Bitcoins}
-import org.scalacoin.protocol.{P2PKH, P2SH}
 import org.scalacoin.protocol.transaction.TransactionOutput
 import org.scalacoin.script.bitwise.OP_EQUAL
 import org.scalacoin.script.constant.{BytesToPushOntoStackImpl, ScriptConstantImpl}
@@ -26,8 +25,6 @@ class RawTransactionOutputParserTest extends FlatSpec with MustMatchers with Raw
     secondOutput.value must be (CurrencyUnits.toSatoshis(Bitcoins(0.02981145)))
     firstOutput.scriptPubKey.asm must be (Seq(OP_HASH160, BytesToPushOntoStackImpl(20),ScriptConstantImpl("eda8ae08b5c9f973f49543e90a7c292367b3337c"), OP_EQUAL))
     secondOutput.scriptPubKey.asm must be (Seq(OP_HASH160,BytesToPushOntoStackImpl(20), ScriptConstantImpl("be2319b9060429692ebeffaa3be38497dc5380c8"), OP_EQUAL))
-    firstOutput.scriptPubKey.scriptType must be (P2SH)
-    secondOutput.scriptPubKey.scriptType must be (P2SH)
   }
 
   it must "seralialize a transaction output" in {
@@ -54,7 +51,5 @@ class RawTransactionOutputParserTest extends FlatSpec with MustMatchers with Raw
     val rawTwoOutputs = "026c405d05000000001976a91431a420903c05a0a7de2de40c9f02ebedbacdc17288ac809698000000000017a914af575bd77c5ce7eba3bd9ce6f89774713ae62c7987"
     val outputs = RawTransactionOutputParser.read(rawTwoOutputs)
     outputs.size must be (2)
-    outputs.head.scriptPubKey.scriptType must be (P2PKH)
-    outputs(1).scriptPubKey.scriptType must be (P2SH)
   }
 }

src/test/scala/org/scalacoin/protocol/script/ScriptPubKeyTest.scala

@@ -1,7 +1,6 @@
 package org.scalacoin.protocol.script
 
 import org.scalacoin.crypto.ECFactory
-import org.scalacoin.protocol.{MultiSignature, P2SH, P2PKH}
 import org.scalacoin.script.bitwise.OP_EQUALVERIFY
 import org.scalacoin.script.constant.{ScriptConstantImpl, BytesToPushOntoStackImpl, ScriptToken}
 import org.scalacoin.script.crypto.{OP_CHECKSIG, OP_HASH160, OP_CODESEPARATOR}
@@ -24,25 +23,4 @@ class ScriptPubKeyTest extends FlatSpec with MustMatchers {
     scriptPubKey.asm must be (expectedAsm)
   }
 
-  it must "derive a P2PKH script type from a scriptPubKey" in {
-    scriptPubKey.scriptType must be (P2PKH)
-  }
-
-  it must "derive a P2SH script type for a scriptPubKey" in {
-
-    TestUtil.p2shScriptPubKey.scriptType must be (P2SH)
-  }
-
-
-
-  it must "derive a multisignature script type for a scriptPubKey" in {
-    val multiSigRawScriptPubKey = "5221025878e270211662a27181cf" +
-      "4d6ad4d2cf0e69a98a3815c086f587c7e9388d87182103fc85980e3fac1f3d" +
-      "8a5c3223c3ef5bffc1bd42d2cc42add8c3899cc66e7f1906210215b5bd0508" +
-      "69166a70a7341b4f216e268b7c6c7504576dcea2cce7d11cc9a35f53ae"
-    val multiSigScriptPubKey = ScriptPubKeyFactory.fromHex(multiSigRawScriptPubKey)
-
-    multiSigScriptPubKey.scriptType must be (MultiSignature)
-  }
-
 }

src/test/scala/org/scalacoin/protocol/transaction/TransactionInputTest.scala

@@ -0,0 +1,19 @@
+package org.scalacoin.protocol.transaction
+
+import org.scalacoin.protocol.script.EmptyScriptSignature
+import org.scalatest.{FlatSpec, MustMatchers}
+
+/**
+ * Created by chris on 3/30/16.
+ */
+class TransactionInputTest extends FlatSpec with MustMatchers {
+
+
+  "TransactionInput" must "define an empty transaction input" in {
+    EmptyTransactionInput.previousOutput must be (EmptyTransactionOutPoint)
+    EmptyTransactionInput.scriptSignature must be (EmptyScriptSignature)
+    EmptyTransactionInput.scriptSigCompactSizeUInt.num must be (0)
+    EmptyTransactionInput.scriptSigCompactSizeUInt.size must be (1)
+    EmptyTransactionInput.sequence must be (TransactionConstants.sequence)
+  }
+}

src/test/scala/org/scalacoin/protocol/transaction/TransactionOutPointTest.scala

@@ -0,0 +1,13 @@
+package org.scalacoin.protocol.transaction
+
+import org.scalatest.{FlatSpec, MustMatchers}
+
+/**
+ * Created by chris on 3/30/16.
+ */
+class TransactionOutPointTest extends FlatSpec with MustMatchers {
+  "TransactionOutPoint" must "define an empty transaction outpoint" in {
+    EmptyTransactionOutPoint.txId must be ("")
+    EmptyTransactionOutPoint.vout must be (-1)
+  }
+}

src/test/scala/org/scalacoin/protocol/transaction/TransactionOutputTest.scala

@@ -0,0 +1,16 @@
+package org.scalacoin.protocol.transaction
+
+import org.scalacoin.currency.CurrencyUnits
+import org.scalacoin.protocol.script.EmptyScriptPubKey
+import org.scalatest.{FlatSpec, MustMatchers}
+
+/**
+ * Created by chris on 3/30/16.
+ */
+class TransactionOutputTest extends FlatSpec with MustMatchers  {
+
+  "TransactionOutput" must "define an empty transaction output" in {
+    EmptyTransactionOutput.scriptPubKey must be (EmptyScriptPubKey)
+    EmptyTransactionOutput.value must be (CurrencyUnits.negativeSatoshi)
+  }
+}

src/test/scala/org/scalacoin/protocol/transaction/TransactionTest.scala

@@ -16,4 +16,11 @@ class TransactionTest extends FlatSpec with MustMatchers {
 
     tx.txId must be ("cddda897b0e9322937ee1f4fd5d6147d60f04a0f4d3b461e4f87066ac3918f2a")
   }
+
+  it must "have an empty transaction with the correct fields" in {
+    EmptyTransaction.inputs.isEmpty must be (true)
+    EmptyTransaction.outputs.isEmpty must be (true)
+    EmptyTransaction.lockTime must be (TransactionConstants.lockTime)
+    EmptyTransaction.txId must be ("0000000000000000000000000000000000000000000000000000000000000000")
+  }
 }

src/test/scala/org/scalacoin/script/locktime/LockTimeInterpreterTest.scala

@@ -0,0 +1,28 @@
+package org.scalacoin.script.locktime
+
+import org.scalacoin.script.ScriptProgramFactory
+import org.scalacoin.script.constant.OP_0
+import org.scalacoin.util.TestUtil
+import org.scalatest.{MustMatchers, FlatSpec}
+
+/**
+ * Created by chris on 3/30/16.
+ */
+class LockTimeInterpreterTest extends FlatSpec with MustMatchers with LockTimeInterpreter {
+
+  "LockTimeInterpreter" must "mark the transaction invalid if the stack is empty" in {
+    val stack = Seq()
+    val script = Seq(OP_CHECKLOCKTIMEVERIFY)
+    val program = ScriptProgramFactory.factory(TestUtil.testProgram,stack,script)
+    val newProgram = opCheckLockTimeVerify(program)
+    newProgram.isValid must be (false)
+  }
+
+  it must "mark the transaction invalid if the transaction's sequence number is set to the max" in {
+    val stack = Seq(OP_0)
+    val script = Seq(OP_CHECKLOCKTIMEVERIFY)
+    val program = ScriptProgramFactory.factory(TestUtil.testProgram,stack,script)
+    val newProgram = opCheckLockTimeVerify(program)
+    newProgram.isValid must be (false)
+  }
+}