PPCoin: Sign block when communicating with miners via RPC 'getwork'

[novacoin.git] / src / bitcoinrpc.cpp

diff --git a/src/bitcoinrpc.cpp b/src/bitcoinrpc.cpp
index 16fc8c5..e68f1fe 100644 (file)
--- a/src/bitcoinrpc.cpp
+++ b/src/bitcoinrpc.cpp
@@ -216,10 +216,11 @@ double GetDifficulty()
 
     if (pindexBest == NULL)
         return 1.0;
-    int nShift = (pindexBest->nBits >> 24) & 0xff;
+    const CBlockIndex* pindexLastProofOfWork = GetLastBlockIndex(pindexBest, false);
+    int nShift = (pindexLastProofOfWork->nBits >> 24) & 0xff;
 
     double dDiff =
-        (double)0x0000ffff / (double)(pindexBest->nBits & 0x00ffffff);
+        (double)0x0000ffff / (double)(pindexLastProofOfWork->nBits & 0x00ffffff);
 
     while (nShift < 29)
     {
@@ -1656,14 +1657,14 @@ Value getwork(const Array& params, bool fHelp)
             nStart = GetTime();
 
             // Create new block
-            pblock = CreateNewBlock(pwalletMain);
+            pblock = CreateNewBlock(pwalletMain, true);
             if (!pblock)
                 throw JSONRPCError(-7, "Out of memory");
             vNewBlock.push_back(pblock);
         }
 
         // Update nTime
-        pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
+        pblock->nTime = max(pblock->GetBlockTime(), GetAdjustedTime());
         pblock->nNonce = 0;
 
         // Update nExtraNonce
@@ -1709,6 +1710,8 @@ Value getwork(const Array& params, bool fHelp)
         pblock->nNonce = pdata->nNonce;
         pblock->vtx[0].vin[0].scriptSig = mapNewBlock[pdata->hashMerkleRoot].second;
         pblock->hashMerkleRoot = pblock->BuildMerkleTree();
+        if (!pblock->SignBlock(*pwalletMain))
+            throw JSONRPCError(-100, "Unable to sign block");
 
         return CheckWork(pblock, *pwalletMain, reservekey);
     }
@@ -1802,6 +1805,26 @@ Value getmemorypool(const Array& params, bool fHelp)
 }
 
 
+// ppcoin: get information of sync-checkpoint
+Value getcheckpoint(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() != 0)
+        throw runtime_error(
+            "getcheckpoint\n"
+            "Show info of synchronized checkpoint.\n");
+
+    Object result;
+    CBlockIndex* pindexCheckpoint;
+    
+    result.push_back(Pair("synccheckpoint", Checkpoints::hashSyncCheckpoint.ToString().c_str()));
+    pindexCheckpoint = mapBlockIndex[Checkpoints::hashSyncCheckpoint];        
+    result.push_back(Pair("height", pindexCheckpoint->nHeight));
+    result.push_back(Pair("timestamp", DateTimeStrFormat("%x %H:%M:%S", pindexCheckpoint->GetBlockTime()).c_str()));
+    
+    return result;
+}
+
+
 // ppcoin: reserve balance from being staked for network protection
 Value reservebalance(const Array& params, bool fHelp)
 {
@@ -2074,6 +2097,7 @@ pair<string, rpcfn_type> pCallTable[] =
     make_pair("settxfee",               &settxfee),
     make_pair("getmemorypool",          &getmemorypool),
     make_pair("listsinceblock",        &listsinceblock),
+    make_pair("getcheckpoint",         &getcheckpoint),
     make_pair("reservebalance",         &reservebalance),
     make_pair("checkwallet",            &checkwallet),
     make_pair("repairwallet",           &repairwallet),
@@ -2106,6 +2130,7 @@ string pAllowInSafeMode[] =
     "validateaddress",
     "getwork",
     "getmemorypool",
+    "getcheckpoint",
 };
 set<string> setAllowInSafeMode(pAllowInSafeMode, pAllowInSafeMode + sizeof(pAllowInSafeMode)/sizeof(pAllowInSafeMode[0]));