sendmany RPC command, to send to multiple recipients in one transaction.

1 files changed, 73 insertions, 0 deletions

diff --git a/rpc.cpp b/rpc.cpp
index dd94acc050..97710ff6b8 100644
--- a/rpc.cpp
+++ b/rpc.cpp
@@ -768,6 +768,69 @@ Value sendfrom(const Array& params, bool fHelp)
     return wtx.GetHash().GetHex();
 }
 
+Value sendmany(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() < 2 || params.size() > 4)
+        throw runtime_error(
+            "sendmany <fromaccount> {address:amount,...} [minconf=1] [comment]\n"
+            "amounts are double-precision floating point numbers");
+
+    string strAccount = AccountFromValue(params[0]);
+    Object sendTo = params[1].get_obj();
+    int nMinDepth = 1;
+    if (params.size() > 2)
+        nMinDepth = params[2].get_int();
+
+    CWalletTx wtx;
+    wtx.strFromAccount = strAccount;
+    if (params.size() > 3 && params[3].type() != null_type && !params[3].get_str().empty())
+        wtx.mapValue["comment"] = params[3].get_str();
+
+    set<string> setAddress;
+    vector<pair<CScript, int64> > vecSend;
+
+    int64 totalAmount = 0;
+    foreach(const Pair& s, sendTo)
+    {
+        uint160 hash160;
+        string strAddress = s.name_;
+
+        if (setAddress.count(strAddress))
+            throw JSONRPCError(-8, string("Invalid parameter, duplicated address: ")+strAddress);
+        setAddress.insert(strAddress);
+
+        CScript scriptPubKey;
+        if (!scriptPubKey.SetBitcoinAddress(strAddress))
+            throw JSONRPCError(-5, string("Invalid bitcoin address:")+strAddress);
+        int64 nAmount = AmountFromValue(s.value_); 
+        totalAmount += nAmount;
+
+        vecSend.push_back(make_pair(scriptPubKey, nAmount));
+    }
+
+    CRITICAL_BLOCK(cs_mapWallet)
+    {
+        // Check funds
+        int64 nBalance = GetAccountBalance(strAccount, nMinDepth);
+        if (totalAmount > nBalance)
+            throw JSONRPCError(-6, "Account has insufficient funds");
+
+        // Send
+        CReserveKey keyChange;
+        int64 nFeeRequired = 0;
+        bool fCreated = CreateTransaction(vecSend, wtx, keyChange, nFeeRequired);
+        if (!fCreated)
+        {
+            if (totalAmount + nFeeRequired > GetBalance())
+                throw JSONRPCError(-6, "Insufficient funds");
+            throw JSONRPCError(-4, "Transaction creation failed");
+        }
+        if (!CommitTransaction(wtx, keyChange))
+            throw JSONRPCError(-4, "Transaction commit failed");
+    }
+
+    return wtx.GetHash().GetHex();
+}
 
 
 struct tallyitem
@@ -1344,6 +1407,7 @@ pair<string, rpcfn_type> pCallTable[] =
     make_pair("getbalance",            &getbalance),
     make_pair("move",                  &movecmd),
     make_pair("sendfrom",              &sendfrom),
+    make_pair("sendmany",              &sendmany),
     make_pair("gettransaction",        &gettransaction),
     make_pair("listtransactions",      &listtransactions),
     make_pair("getwork",               &getwork),
@@ -1995,6 +2059,15 @@ int CommandLineRPC(int argc, char *argv[])
         if (strMethod == "sendfrom"               && n > 3) ConvertTo<boost::int64_t>(params[3]);
         if (strMethod == "listtransactions"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
         if (strMethod == "listaccounts"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
+        if (strMethod == "sendmany"               && n > 1)
+        {
+            string s = params[1].get_str();
+            Value v;
+            if (!read_string(s, v) || v.type() != obj_type)
+                throw runtime_error("type mismatch");
+            params[1] = v.get_obj();
+        }
+        if (strMethod == "sendmany"                && n > 2) ConvertTo<boost::int64_t>(params[2]);
 
         // Execute
         Object reply = CallRPC(strMethod, params);