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-rw-r--r--src/rpcmisc.cpp101
1 files changed, 101 insertions, 0 deletions
diff --git a/src/rpcmisc.cpp b/src/rpcmisc.cpp
index 240bd68ba4..df68bdf337 100644
--- a/src/rpcmisc.cpp
+++ b/src/rpcmisc.cpp
@@ -171,4 +171,105 @@ Value validateaddress(const Array& params, bool fHelp)
return ret;
}
+//
+// Used by addmultisigaddress / createmultisig:
+//
+CScript _createmultisig(const Array& params)
+{
+ 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));
+ 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();
+#ifdef ENABLE_WALLET
+ // Case 1: Bitcoin address and we have full public key:
+ CBitcoinAddress address(ks);
+ if (pwalletMain && 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
+#endif
+ 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);
+ }
+ }
+ CScript result;
+ result.SetMultisig(nRequired, pubkeys);
+ return result;
+}
+
+Value createmultisig(const Array& params, bool fHelp)
+{
+ if (fHelp || params.size() < 2 || params.size() > 2)
+ {
+ string msg = "createmultisig nrequired [\"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.\n"
+
+ "\nArguments:\n"
+ "1. nrequired (numeric, required) The number of required signatures out of the n keys or addresses.\n"
+ "2. \"keys\" (string, required) A json array of keys which are bitcoin addresses or hex-encoded public keys\n"
+ " [\n"
+ " \"key\" (string) bitcoin address or hex-encoded public key\n"
+ " ,...\n"
+ " ]\n"
+
+ "\nResult:\n"
+ "{\n"
+ " \"address\":\"multisigaddress\", (string) The value of the new multisig address.\n"
+ " \"redeemScript\":\"script\" (string) The string value of the hex-encoded redemption script.\n"
+ "}\n"
+
+ "\nExamples:\n"
+ "\nCreate a multisig address from 2 addresses\n"
+ + HelpExampleCli("createmultisig", "2 \"[\\\"16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5\\\",\\\"171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV\\\"]\"") +
+ "\nAs a json rpc call\n"
+ + HelpExampleRpc("icreatemultisig", "2, \"[\\\"16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5\\\",\\\"171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV\\\"]\"")
+ ;
+ throw runtime_error(msg);
+ }
+
+ // Construct using pay-to-script-hash:
+ CScript inner = _createmultisig(params);
+ 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;
+}
+