Litecoin: M prefix added for script addresses

src/base58.cpp

@@ -216,12 +216,18 @@ class CBitcoinAddressVisitor : public boost::static_visitor<bool>
 {
 private:
     CBitcoinAddress* addr;
+    CChainParams::Base58Type script_type_;
 
 public:
-    CBitcoinAddressVisitor(CBitcoinAddress* addrIn) : addr(addrIn) {}
+    CBitcoinAddressVisitor(CBitcoinAddress* addrIn, CChainParams::Base58Type script_type) 
+      : addr(addrIn), script_type_(script_type) 
+    {
+        assert(script_type == CChainParams::SCRIPT_ADDRESS || 
+               script_type == CChainParams::SCRIPT_ADDRESS2);
+    }
 
     bool operator()(const CKeyID& id) const { return addr->Set(id); }
-    bool operator()(const CScriptID& id) const { return addr->Set(id); }
+    bool operator()(const CScriptID& id) const { return addr->Set(id, script_type_); }
     bool operator()(const CNoDestination& no) const { return false; }
 };
 
@@ -233,15 +239,17 @@ bool CBitcoinAddress::Set(const CKeyID& id)
     return true;
 }
 
-bool CBitcoinAddress::Set(const CScriptID& id)
+bool CBitcoinAddress::Set(const CScriptID& id, CChainParams::Base58Type type)
 {
-    SetData(Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS), &id, 20);
+    assert(type == CChainParams::SCRIPT_ADDRESS || type == CChainParams::SCRIPT_ADDRESS2);
+    SetData(Params().Base58Prefix(type), &id, 20);
     return true;
 }
 
-bool CBitcoinAddress::Set(const CTxDestination& dest)
+bool CBitcoinAddress::Set(const CTxDestination& dest, CChainParams::Base58Type type)
 {
-    return boost::apply_visitor(CBitcoinAddressVisitor(this), dest);
+    assert(type == CChainParams::SCRIPT_ADDRESS || type == CChainParams::SCRIPT_ADDRESS2);
+    return boost::apply_visitor(CBitcoinAddressVisitor(this, type), dest);
 }
 
 bool CBitcoinAddress::IsValid() const
@@ -253,7 +261,8 @@ bool CBitcoinAddress::IsValid(const CChainParams& params) const
 {
     bool fCorrectSize = vchData.size() == 20;
     bool fKnownVersion = vchVersion == params.Base58Prefix(CChainParams::PUBKEY_ADDRESS) ||
-                         vchVersion == params.Base58Prefix(CChainParams::SCRIPT_ADDRESS);
+                         vchVersion == params.Base58Prefix(CChainParams::SCRIPT_ADDRESS) ||
+                         vchVersion == params.Base58Prefix(CChainParams::SCRIPT_ADDRESS2);
     return fCorrectSize && fKnownVersion;
 }
 
@@ -265,7 +274,8 @@ CTxDestination CBitcoinAddress::Get() const
     memcpy(&id, vchData.data(), 20);
     if (vchVersion == Params().Base58Prefix(CChainParams::PUBKEY_ADDRESS))
         return CKeyID(id);
-    else if (vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS))
+    else if (vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS) ||
+             vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS2))
         return CScriptID(id);
     else
         return CNoDestination();
@@ -283,7 +293,8 @@ bool CBitcoinAddress::GetKeyID(CKeyID& keyID) const
 
 bool CBitcoinAddress::IsScript() const
 {
-    return IsValid() && vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS);
+    return IsValid() && (vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS) ||
+                         vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS2));
 }
 
 void CBitcoinSecret::SetKey(const CKey& vchSecret)

src/base58.h

@@ -104,8 +104,8 @@ public:
 class CBitcoinAddress : public CBase58Data {
 public:
     bool Set(const CKeyID &id);
-    bool Set(const CScriptID &id);
+    bool Set(const CScriptID &id, CChainParams::Base58Type type=CChainParams::SCRIPT_ADDRESS2);
-    bool Set(const CTxDestination &dest);
+    bool Set(const CTxDestination &dest, CChainParams::Base58Type type=CChainParams::SCRIPT_ADDRESS2);
     bool IsValid() const;
     bool IsValid(const CChainParams &params) const;
 

src/test/base58_tests.cpp

@@ -227,7 +227,7 @@ BOOST_AUTO_TEST_CASE(base58_keys_valid_gen)
                 continue;
             }
             CBitcoinAddress addrOut;
-            BOOST_CHECK_MESSAGE(addrOut.Set(dest), "encode dest: " + strTest);
+            BOOST_CHECK_MESSAGE(addrOut.Set(dest, CChainParams::SCRIPT_ADDRESS), "encode dest: " + strTest);
             BOOST_CHECK_MESSAGE(addrOut.ToString() == exp_base58string, "mismatch: " + strTest);
         }
     }

test/functional/test_runner.py

@@ -107,6 +107,7 @@ BASE_SCRIPTS= [
     'invalidtxrequest.py',
     'p2p-versionbits-warning.py',
     'preciousblock.py',
+    'test_script_address2.py',
     'importprunedfunds.py',
     'signmessages.py',
     'nulldummy.py',

test/functional/test_script_address2.py

@@ -0,0 +1,97 @@
+#!/usr/bin/env python3
+# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#
+# Test new Litecoin multisig prefix functionality.
+#
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import *
+import decimal
+
+class ScriptAddress2Test(BitcoinTestFramework):
+    def __init__(self):
+        super().__init__()
+        self.num_nodes = 3
+        self.setup_clean_chain = False
+
+    def setup_network(self):
+        self.nodes = self.start_nodes(self.num_nodes, self.options.tmpdir)
+        connect_nodes(self.nodes[1], 0)
+        connect_nodes(self.nodes[2], 0)
+        self.is_network_split = False
+        self.sync_all()
+
+    def run_test(self):
+        cnt = self.nodes[0].getblockcount()
+
+        # Mine some blocks
+        self.nodes[1].generate(100)
+        self.sync_all()
+        if (self.nodes[0].getblockcount() != cnt + 100):
+            raise AssertionError("Failed to mine 100 blocks")
+
+        addr = self.nodes[0].getnewaddress()
+        addr2 = self.nodes[0].getnewaddress()
+        multisig_addr = self.nodes[0].addmultisigaddress(2, [addr, addr2], "multisigaccount")
+        assert_equal(multisig_addr[0], 'Q')
+
+        # Send to a new multisig address
+        txid = self.nodes[1].sendtoaddress(multisig_addr, 1)
+        block = self.nodes[1].generate(3)
+        self.sync_all()
+        tx = self.nodes[2].getrawtransaction(txid, 1)
+        dest_addrs = [tx["vout"][0]['scriptPubKey']['addresses'][0],
+                      tx["vout"][1]['scriptPubKey']['addresses'][0]]
+        assert(multisig_addr in dest_addrs)
+
+        # Spend from the new multisig address
+        addr3 = self.nodes[1].getnewaddress()
+        txid = self.nodes[0].sendfrom("multisigaccount", addr3, 0.8)
+        block = self.nodes[0].generate(2)
+        self.sync_all()
+        assert(self.nodes[0].getbalance("multisigaccount", 1) < 0.2)
+        assert(self.nodes[1].listtransactions()[-1]['address'] == addr3)
+
+        # Send to an old multisig address. The api addmultisigaddress
+        # can only generate a new address so we manually compute
+        # multisig_addr_old beforehand using an old client.
+        priv_keys = ["cU7eeLPKzXeKMeZvnEJhvZZ3tLqVF3XGeo1BbM8dnbmV7pP3Qg89",
+                     "cTw7mRhSvTfzqCt6MFgBoTBqwBpYu2rWugisXcwjv4cAASh3iqPt"]
+
+        addrs = ["mj6gNGRXPXrD69R5ApjcsDerZGrYKSfb6v",
+                 "mqET4JA3L7P7FoUjUP3F6m6YsLpCkyzzou"]
+
+        self.nodes[0].importprivkey(priv_keys[0])
+        self.nodes[0].importprivkey(priv_keys[1])
+
+        multisig_addr_new = self.nodes[0].addmultisigaddress(2, addrs, "multisigaccount2")
+        assert_equal(multisig_addr_new, "QZ974ZrPrmqMmm1PSVp4m8YEgo3bCQZBbe")
+        multisig_addr_old = "2N5nLwYz9qfnGdaFLpPn3gS6oYQbmLTWPjq"
+        
+        ## Let's send to the old address. We can then find it in the
+        ## new address with the new client. So basically the old
+        ## address and the new one are the same thing.
+        txid = self.nodes[1].sendtoaddress(multisig_addr_old, 1)
+        block = self.nodes[1].generate(1)
+        self.sync_all()
+        tx = self.nodes[2].getrawtransaction(txid, 1)
+        dest_addrs = [tx["vout"][0]['scriptPubKey']['addresses'][0],
+                      tx["vout"][1]['scriptPubKey']['addresses'][0]]
+        assert(multisig_addr_new in dest_addrs)
+        assert(multisig_addr_old not in dest_addrs)
+
+        # Spend from the new multisig address
+        addr4 = self.nodes[1].getnewaddress()
+        txid = self.nodes[0].sendfrom("multisigaccount2", addr4, 0.8)
+        block = self.nodes[0].generate(2)
+        self.sync_all()
+        assert(self.nodes[0].getbalance("multisigaccount2", 1) < 0.2)
+        assert(self.nodes[1].listtransactions()[-1]['address'] == addr4)
+
+
+
+if __name__ == '__main__':
+    ScriptAddress2Test().main()