List of unconditionally banned blocks.

[novacoin.git] / src / checkpoints.cpp

diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp
index 8bc3151..095def3 100644 (file)
--- a/src/checkpoints.cpp
+++ b/src/checkpoints.cpp
@@ -4,6 +4,7 @@
 
 #include <boost/assign/list_of.hpp> // for 'map_list_of()'
 #include <boost/foreach.hpp>
+#include <algorithm>
 
 #include "checkpoints.h"
 
@@ -14,6 +15,7 @@
 namespace Checkpoints
 {
     typedef std::map<int, std::pair<uint256, unsigned int> > MapCheckpoints;
+    typedef std::list<uint256> ListBannedBlocks;
 
     //
     // What makes a good checkpoint block?
@@ -25,14 +27,18 @@ namespace Checkpoints
     static MapCheckpoints mapCheckpoints =
         boost::assign::map_list_of
         ( 0,     std::make_pair(hashGenesisBlock, 1360105017) )
-        ( 9690,  std::make_pair(uint256("0x00000000026561450859c46868099e0df6068a538f038cb18988fd8d47dcdaf5"), 1362791423) )
         ( 13560, std::make_pair(uint256("0xa1591a0fcbf11f282d671581edb9f0aadcd06fee69761081e0a3245914c13729"), 1364674052) )
-        ( 37092, std::make_pair(uint256("0x0000000000a38c2f98556f46793b453e92d8fab2d31c0b93fd08bcf78e56099d"), 1376677203) )
-        ( 44200, std::make_pair(uint256("0xc9bda7232a18b9c1f5ff974a9e5566b2d1879ceb8fc0e9e61fba9038a25b8447"), 1380145962) )
-        ( 65000, std::make_pair(uint256("0xfb2b51a2fd65062c98a7a6053cde46aeaefebb95ba2f680e85a29ee25b1dcf05"), 1388526385) )
-        ( 68600, std::make_pair(uint256("0xb646b0562080ab9411f85d4b2a1ca8b197c67ae170c5e328406871b44233cb06"), 1389867276) )
-        ( 92161, std::make_pair(uint256("0x000000000079090eb31e7fa55487e4e666466253e68b213f44b7977ea7a2eeec"), 1398919969) )
-        ( 98661, std::make_pair(uint256("0x48328dfc0eaffc659723739c6202854d1624449340193bdea3e71ece4ccdd43f"), 1401469019) )
+        ( 143990, std::make_pair(uint256("0x00000000001ff5c3940a9f73ad4a990f64955179bde0f743c76dbf0031429efc"), 1418953493) )
+        ( 149000, std::make_pair(uint256("0x7a24acfcadcf43054e7f7d9f273522c0dfc5791ba4006e0273e7521a8d36c525"), 1420872125) )
+        ( 160000, std::make_pair(uint256("0x000000000001cb1133043d38d077c0e93f66c8b2566779f10f182137d1e34a68"), 1425150237) )
+        ( 200000, std::make_pair(uint256("0x0000000000029f8bbf66e6ea6f3e5db55009404aae0fe395a53dd33142b2bff2"), 1441127233) )
+        ( 221047, std::make_pair(uint256("0xa28aef712e7aa0c285bfe29351ca21ed416689139e3063ef770fc826a8b9e9da"), 1449431646) )
+    ;
+    
+    static ListBannedBlocks listBanned =
+        boost::assign::list_of
+        // Invalid block #221047 with future timestamp of 2016/02/23 09:24:17 UTC
+        ( uint256("0x46223e5432ceffe650d5729b4bb8479dcdf0ca1e534fa8e69382dc87b42ea94b") )
     ;
 
     // TestNet has no checkpoints
@@ -50,6 +56,14 @@ namespace Checkpoints
         return hash == i->second.first;
     }
 
+    bool CheckBanned(const uint256 &nHash)
+    {
+        if (fTestNet) // Testnet has no banned blocks
+            return true;
+        ListBannedBlocks::const_iterator it = std::find(listBanned.begin(), listBanned.end(), nHash);
+        return it == listBanned.end();
+    }
+
     int GetTotalBlocksEstimate()
     {
         MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
@@ -57,7 +71,7 @@ namespace Checkpoints
         return checkpoints.rbegin()->first;
     }
 
-    int GetLastCheckpointTime()
+    unsigned int GetLastCheckpointTime()
     {
         MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
 
@@ -152,6 +166,10 @@ namespace Checkpoints
         if (!txdb.TxnCommit())
             return error("WriteSyncCheckpoint(): failed to commit to db sync checkpoint %s", hashCheckpoint.ToString().c_str());
 
+#ifndef USE_LEVELDB
+        txdb.Close();
+#endif
+
         Checkpoints::hashSyncCheckpoint = hashCheckpoint;
         return true;
     }
@@ -182,6 +200,9 @@ namespace Checkpoints
                 }
             }
 
+#ifndef USE_LEVELDB
+            txdb.Close();
+#endif
             if (!WriteSyncCheckpoint(hashPendingCheckpoint))
                 return error("AcceptPendingSyncCheckpoint(): failed to write sync checkpoint %s", hashPendingCheckpoint.ToString().c_str());
             hashPendingCheckpoint = 0;
@@ -267,6 +288,11 @@ namespace Checkpoints
             {
                 return error("ResetSyncCheckpoint: SetBestChain failed for hardened checkpoint %s", hash.ToString().c_str());
             }
+
+#ifndef USE_LEVELDB
+            txdb.Close();
+#endif
+
         }
         else if(!mapBlockIndex.count(hash))
         {
@@ -381,7 +407,7 @@ bool CSyncCheckpoint::CheckSignature()
     return true;
 }
 
-// ppcoin: process synchronized checkpoint
+// process synchronized checkpoint
 bool CSyncCheckpoint::ProcessSyncCheckpoint(CNode* pfrom)
 {
     if (!CheckSignature())
@@ -423,6 +449,10 @@ bool CSyncCheckpoint::ProcessSyncCheckpoint(CNode* pfrom)
         }
     }
 
+#ifndef USE_LEVELDB
+    txdb.Close();
+#endif
+
     if (!Checkpoints::WriteSyncCheckpoint(hashCheckpoint))
         return error("ProcessSyncCheckpoint(): failed to write sync checkpoint %s", hashCheckpoint.ToString().c_str());
     Checkpoints::checkpointMessage = *this;