Move signature verification functions to CPubKey.
[novacoin.git] / src / rpcrawtransaction.cpp
index fdc5426..b8365c6 100644 (file)
@@ -7,7 +7,7 @@
 
 #include "base58.h"
 #include "bitcoinrpc.h"
-#include "db.h"
+#include "txdb.h"
 #include "init.h"
 #include "main.h"
 #include "net.h"
@@ -18,14 +18,16 @@ using namespace boost;
 using namespace boost::assign;
 using namespace json_spirit;
 
-void ScriptPubKeyToJSON(const CScript& scriptPubKey, Object& out)
+void ScriptPubKeyToJSON(const CScript& scriptPubKey, Object& out, bool fIncludeHex)
 {
     txnouttype type;
     vector<CTxDestination> addresses;
     int nRequired;
 
     out.push_back(Pair("asm", scriptPubKey.ToString()));
-    out.push_back(Pair("hex", HexStr(scriptPubKey.begin(), scriptPubKey.end())));
+
+    if (fIncludeHex)
+        out.push_back(Pair("hex", HexStr(scriptPubKey.begin(), scriptPubKey.end())));
 
     if (!ExtractDestinations(scriptPubKey, type, addresses, nRequired))
     {
@@ -33,21 +35,42 @@ void ScriptPubKeyToJSON(const CScript& scriptPubKey, Object& out)
         return;
     }
 
-    out.push_back(Pair("reqSigs", nRequired));
-    out.push_back(Pair("type", GetTxnOutputType(type)));
+    if (type != TX_NULL_DATA)
+    {
+        out.push_back(Pair("reqSigs", nRequired));
+        out.push_back(Pair("type", GetTxnOutputType(type)));
 
-    Array a;
-    BOOST_FOREACH(const CTxDestination& addr, addresses)
-        a.push_back(CBitcoinAddress(addr).ToString());
-    out.push_back(Pair("addresses", a));
+        if (type == TX_PUBKEY_DROP)
+        {
+            vector<valtype> vSolutions;
+            Solver(scriptPubKey, type, vSolutions);
+            out.push_back(Pair("keyVariant", HexStr(vSolutions[0])));
+            out.push_back(Pair("R", HexStr(vSolutions[1])));
+
+            CMalleableKeyView view;
+            if (pwalletMain->CheckOwnership(CPubKey(vSolutions[0]), CPubKey(vSolutions[1]), view))
+                out.push_back(Pair("pubkeyPair", CBitcoinAddress(view.GetMalleablePubKey()).ToString()));
+        }
+        else
+        {
+            Array a;
+            BOOST_FOREACH(const CTxDestination& addr, addresses)
+                a.push_back(CBitcoinAddress(addr).ToString());
+            out.push_back(Pair("addresses", a));
+        }
+    }
+    else
+    {
+        out.push_back(Pair("type", GetTxnOutputType(type)));
+    }
 }
 
-void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry)
+void TxToJSON(const CTransaction& tx, const uint256& hashBlock, Object& entry)
 {
     entry.push_back(Pair("txid", tx.GetHash().GetHex()));
     entry.push_back(Pair("version", tx.nVersion));
-    entry.push_back(Pair("time", (boost::int64_t)tx.nTime));
-    entry.push_back(Pair("locktime", (boost::int64_t)tx.nLockTime));
+    entry.push_back(Pair("time", (int64_t)tx.nTime));
+    entry.push_back(Pair("locktime", (int64_t)tx.nLockTime));
     Array vin;
     BOOST_FOREACH(const CTxIn& txin, tx.vin)
     {
@@ -57,13 +80,13 @@ void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry)
         else
         {
             in.push_back(Pair("txid", txin.prevout.hash.GetHex()));
-            in.push_back(Pair("vout", (boost::int64_t)txin.prevout.n));
+            in.push_back(Pair("vout", (int64_t)txin.prevout.n));
             Object o;
             o.push_back(Pair("asm", txin.scriptSig.ToString()));
             o.push_back(Pair("hex", HexStr(txin.scriptSig.begin(), txin.scriptSig.end())));
             in.push_back(Pair("scriptSig", o));
         }
-        in.push_back(Pair("sequence", (boost::int64_t)txin.nSequence));
+        in.push_back(Pair("sequence", (int64_t)txin.nSequence));
         vin.push_back(in);
     }
     entry.push_back(Pair("vin", vin));
@@ -73,9 +96,9 @@ void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry)
         const CTxOut& txout = tx.vout[i];
         Object out;
         out.push_back(Pair("value", ValueFromAmount(txout.nValue)));
-        out.push_back(Pair("n", (boost::int64_t)i));
+        out.push_back(Pair("n", (int64_t)i));
         Object o;
-        ScriptPubKeyToJSON(txout.scriptPubKey, o);
+        ScriptPubKeyToJSON(txout.scriptPubKey, o, true);
         out.push_back(Pair("scriptPubKey", o));
         vout.push_back(out);
     }
@@ -91,8 +114,8 @@ void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry)
             if (pindex->IsInMainChain())
             {
                 entry.push_back(Pair("confirmations", 1 + nBestHeight - pindex->nHeight));
-                entry.push_back(Pair("time", (boost::int64_t)pindex->nTime));
-                entry.push_back(Pair("blocktime", (boost::int64_t)pindex->nTime));
+                entry.push_back(Pair("time", (int64_t)pindex->nTime));
+                entry.push_back(Pair("blocktime", (int64_t)pindex->nTime));
             }
             else
                 entry.push_back(Pair("confirmations", 0));
@@ -189,14 +212,33 @@ Value listunspent(const Array& params, bool fHelp)
                 continue;
         }
 
-        int64 nValue = out.tx->vout[out.i].nValue;
+        int64_t nValue = out.tx->vout[out.i].nValue;
         const CScript& pk = out.tx->vout[out.i].scriptPubKey;
         Object entry;
         entry.push_back(Pair("txid", out.tx->GetHash().GetHex()));
         entry.push_back(Pair("vout", out.i));
+        CTxDestination address;
+        if (ExtractDestination(out.tx->vout[out.i].scriptPubKey, address))
+        {
+            entry.push_back(Pair("address", CBitcoinAddress(address).ToString()));
+            if (pwalletMain->mapAddressBook.count(address))
+                entry.push_back(Pair("account", pwalletMain->mapAddressBook[address]));
+        }
         entry.push_back(Pair("scriptPubKey", HexStr(pk.begin(), pk.end())));
+        if (pk.IsPayToScriptHash())
+        {
+            CTxDestination address;
+            if (ExtractDestination(pk, address))
+            {
+                const CScriptID& hash = boost::get<CScriptID>(address);
+                CScript redeemScript;
+                if (pwalletMain->GetCScript(hash, redeemScript))
+                    entry.push_back(Pair("redeemScript", HexStr(redeemScript.begin(), redeemScript.end())));
+            }
+        }
         entry.push_back(Pair("amount",ValueFromAmount(nValue)));
         entry.push_back(Pair("confirmations",out.nDepth));
+        entry.push_back(Pair("spendable", out.fSpendable));
         results.push_back(entry);
     }
 
@@ -205,12 +247,13 @@ Value listunspent(const Array& params, bool fHelp)
 
 Value createrawtransaction(const Array& params, bool fHelp)
 {
-    if (fHelp || params.size() != 2)
+    if (fHelp || params.size() > 3 || params.size() < 2)
         throw runtime_error(
-            "createrawtransaction [{\"txid\":txid,\"vout\":n},...] {address:amount,...}\n"
+            "createrawtransaction <'[{\"txid\":txid,\"vout\":n},...]'> <'{address:amount,...}'> [hex data]\n"
             "Create a transaction spending given inputs\n"
             "(array of objects containing transaction id and output number),\n"
-            "sending to given address(es).\n"
+            "sending to given address(es),\n"
+            "optional data to add into data-carrying output.\n"
             "Returns hex-encoded raw transaction.\n"
             "Note that the transaction's inputs are not signed, and\n"
             "it is not stored in the wallet or transmitted to the network.");
@@ -247,22 +290,40 @@ Value createrawtransaction(const Array& params, bool fHelp)
     set<CBitcoinAddress> setAddress;
     BOOST_FOREACH(const Pair& s, sendTo)
     {
+        // Create output destination script
+        CScript scriptPubKey;
         CBitcoinAddress address(s.name_);
-        if (!address.IsValid())
-            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, string("Invalid NovaCoin address: ")+s.name_);
 
-        if (setAddress.count(address))
-            throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated address: ")+s.name_);
-        setAddress.insert(address);
+        if (address.IsValid())
+        {
+            scriptPubKey.SetAddress(address);
 
-        CScript scriptPubKey;
-        scriptPubKey.SetDestination(address.Get());
-        int64 nAmount = AmountFromValue(s.value_);
+            // Don't perform duplication checking for pubkey-pair addresses
+            if (!address.IsPair())
+            {
+                if (setAddress.count(address))
+                    throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated address: ")+s.name_);
+                setAddress.insert(address);
+            }
+        }
+        else
+            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, string("Invalid output destination: ")+s.name_);
+
+        int64_t nAmount = AmountFromValue(s.value_);
 
         CTxOut out(nAmount, scriptPubKey);
         rawTx.vout.push_back(out);
     }
 
+    if (params.size() == 3)
+    {
+        // Data carrying output
+        CScript scriptPubKey;
+        scriptPubKey << OP_RETURN << ParseHex(params[2].get_str());
+        CTxOut out(0, scriptPubKey);
+        rawTx.vout.push_back(out);
+    }
+
     CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
     ss << rawTx;
     return HexStr(ss.begin(), ss.end());
@@ -283,7 +344,7 @@ Value decoderawtransaction(const Array& params, bool fHelp)
     try {
         ssData >> tx;
     }
-    catch (std::exception &e) {
+    catch (const std::exception&) {
         throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
     }
 
@@ -293,11 +354,34 @@ Value decoderawtransaction(const Array& params, bool fHelp)
     return result;
 }
 
+Value decodescript(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() != 1)
+        throw runtime_error(
+            "decodescript <hex string>\n"
+            "Decode a hex-encoded script.");
+
+    RPCTypeCheck(params, list_of(str_type));
+
+    Object r;
+    CScript script;
+    if (params[0].get_str().size() > 0){
+        vector<unsigned char> scriptData(ParseHexV(params[0], "argument"));
+        script = CScript(scriptData.begin(), scriptData.end());
+    } else {
+        // Empty scripts are valid
+    }
+    ScriptPubKeyToJSON(script, r, false);
+
+    r.push_back(Pair("p2sh", CBitcoinAddress(script.GetID()).ToString()));
+    return r;
+}
+
 Value signrawtransaction(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 4)
         throw runtime_error(
-            "signrawtransaction <hex string> [{\"txid\":txid,\"vout\":n,\"scriptPubKey\":hex},...] [<privatekey1>,...] [sighashtype=\"ALL\"]\n"
+            "signrawtransaction <hex string> '[{\"txid\":txid,\"vout\":n,\"scriptPubKey\":hex,\"redeemScript\":hex},...]' '[<privatekey1>,...]' [sighashtype=\"ALL\"]\n"
             "Sign inputs for raw transaction (serialized, hex-encoded).\n"
             "Second optional argument (may be null) is an array of previous transaction outputs that\n"
             "this transaction depends on but may not yet be in the blockchain.\n"
@@ -322,7 +406,7 @@ Value signrawtransaction(const Array& params, bool fHelp)
             ssData >> tx;
             txVariants.push_back(tx);
         }
-        catch (std::exception &e) {
+        catch (const std::exception&) {
             throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
         }
     }
@@ -358,6 +442,28 @@ Value signrawtransaction(const Array& params, bool fHelp)
         }
     }
 
+    bool fGivenKeys = false;
+    CBasicKeyStore tempKeystore;
+    if (params.size() > 2 && params[2].type() != null_type)
+    {
+        fGivenKeys = true;
+        Array keys = params[2].get_array();
+        BOOST_FOREACH(Value k, keys)
+        {
+            CBitcoinSecret vchSecret;
+            bool fGood = vchSecret.SetString(k.get_str());
+            if (!fGood)
+                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid private key");
+            CKey key;
+            bool fCompressed;
+            CSecret secret = vchSecret.GetSecret(fCompressed);
+            key.SetSecret(secret, fCompressed);
+            tempKeystore.AddKey(key);
+        }
+    }
+    else
+        EnsureWalletIsUnlocked();
+
     // Add previous txouts given in the RPC call:
     if (params.size() > 1 && params[1].type() != null_type)
     {
@@ -401,30 +507,23 @@ Value signrawtransaction(const Array& params, bool fHelp)
             }
             else
                 mapPrevOut[outpoint] = scriptPubKey;
-        }
-    }
 
-    bool fGivenKeys = false;
-    CBasicKeyStore tempKeystore;
-    if (params.size() > 2 && params[2].type() != null_type)
-    {
-        fGivenKeys = true;
-        Array keys = params[2].get_array();
-        BOOST_FOREACH(Value k, keys)
-        {
-            CBitcoinSecret vchSecret;
-            bool fGood = vchSecret.SetString(k.get_str());
-            if (!fGood)
-                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,"Invalid private key");
-            CKey key;
-            bool fCompressed;
-            CSecret secret = vchSecret.GetSecret(fCompressed);
-            key.SetSecret(secret, fCompressed);
-            tempKeystore.AddKey(key);
+            // if redeemScript given and not using the local wallet (private keys
+            // given), add redeemScript to the tempKeystore so it can be signed:
+            Value v = find_value(prevOut, "redeemScript");
+            if (fGivenKeys && scriptPubKey.IsPayToScriptHash())
+            {
+                RPCTypeCheck(prevOut, map_list_of("txid", str_type)("vout", int_type)("scriptPubKey", str_type)("redeemScript",str_type));
+                Value v = find_value(prevOut, "redeemScript");
+                if (!(v == Value::null))
+                {
+                    vector<unsigned char> rsData(ParseHexV(v, "redeemScript"));
+                    CScript redeemScript(rsData.begin(), rsData.end());
+                    tempKeystore.AddCScript(redeemScript);
+                }
+            }
         }
     }
-    else
-        EnsureWalletIsUnlocked();
 
     const CKeyStore& keystore = (fGivenKeys ? tempKeystore : *pwalletMain);
 
@@ -470,7 +569,7 @@ Value signrawtransaction(const Array& params, bool fHelp)
         {
             txin.scriptSig = CombineSignatures(prevPubKey, mergedTx, i, txin.scriptSig, txv.vin[i].scriptSig);
         }
-        if (!VerifyScript(txin.scriptSig, prevPubKey, mergedTx, i, true, 0))
+        if (!VerifyScript(txin.scriptSig, prevPubKey, mergedTx, i, STRICT_FLAGS, 0))
             fComplete = false;
     }
 
@@ -501,7 +600,7 @@ Value sendrawtransaction(const Array& params, bool fHelp)
     try {
         ssData >> tx;
     }
-    catch (std::exception &e) {
+    catch (const std::exception&) {
         throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
     }
     uint256 hashTx = tx.GetHash();
@@ -526,7 +625,84 @@ Value sendrawtransaction(const Array& params, bool fHelp)
 
         SyncWithWallets(tx, NULL, true);
     }
-    RelayMessage(CInv(MSG_TX, hashTx), tx);
+    RelayTransaction(tx, hashTx);
 
     return hashTx.GetHex();
 }
+
+Value createmultisig(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() < 2 || params.size() > 3)
+    {
+        string msg = "createmultisig <nrequired> <'[\"key\",\"key\"]'>\n"
+            "\nCreates a multi-signature address with n signature of m keys required.\n"
+            "It returns a json object with the address and redeemScript.";
+        throw runtime_error(msg);
+    }
+
+    int nRequired = params[0].get_int();
+    const Array& keys = params[1].get_array();
+
+    // Gather public keys
+    if (nRequired < 1)
+        throw runtime_error("a multisignature address must require at least one key to redeem");
+    if ((int)keys.size() < nRequired)
+        throw runtime_error(
+            strprintf("not enough keys supplied "
+                      "(got %" PRIszu " keys, but need at least %d to redeem)", keys.size(), nRequired));
+    if (keys.size() > 16)
+        throw runtime_error("Number of addresses involved in the multisignature address creation > 16\nReduce the number");
+    std::vector<CPubKey> pubkeys;
+    pubkeys.resize(keys.size());
+    for (unsigned int i = 0; i < keys.size(); i++)
+    {
+        const std::string& ks = keys[i].get_str();
+
+        // Case 1: Bitcoin address and we have full public key:
+        CBitcoinAddress address(ks);
+        if (address.IsValid())
+        {
+            CKeyID keyID;
+            if (!address.GetKeyID(keyID))
+                throw runtime_error(
+                    strprintf("%s does not refer to a key",ks.c_str()));
+            CPubKey vchPubKey;
+            if (!pwalletMain->GetPubKey(keyID, vchPubKey))
+                throw runtime_error(
+                    strprintf("no full public key for address %s",ks.c_str()));
+            if (!vchPubKey.IsFullyValid())
+                throw runtime_error(" Invalid public key: "+ks);
+            pubkeys[i] = vchPubKey;
+        }
+
+        // Case 2: hex public key
+        else if (IsHex(ks))
+        {
+            CPubKey vchPubKey(ParseHex(ks));
+            if (!vchPubKey.IsFullyValid())
+                throw runtime_error(" Invalid public key: "+ks);
+            pubkeys[i] = vchPubKey;
+        }
+        else
+        {
+            throw runtime_error(" Invalid public key: "+ks);
+        }
+    }
+
+    // Construct using pay-to-script-hash:
+    CScript inner;
+    inner.SetMultisig(nRequired, pubkeys);
+
+    if (inner.size() > MAX_SCRIPT_ELEMENT_SIZE)
+        throw runtime_error(
+            strprintf("redeemScript exceeds size limit: %" PRIszu " > %d", inner.size(), MAX_SCRIPT_ELEMENT_SIZE));
+
+    CScriptID innerID = inner.GetID();
+    CBitcoinAddress address(innerID);
+
+    Object result;
+    result.push_back(Pair("address", address.ToString()));
+    result.push_back(Pair("redeemScript", HexStr(inner.begin(), inner.end())));
+
+    return result;
+}