From 536cb5f86d68b8cc9d368986f20ad6c0731fda81 Mon Sep 17 00:00:00 2001
From: blackjok3r <blackjok3r@gmail.com>
Date: Thu, 21 Feb 2019 20:17:08 +0800
Subject: [PATCH] geterablockheights RPC

---
 src/main.cpp       |  5 +++--
 src/rpc/misc.cpp   | 30 ++++++++++++++++++++++++++++--
 src/rpc/server.cpp |  1 +
 src/rpc/server.h   |  1 +
 4 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index 6bee5855c..6ad0e613d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1111,8 +1111,9 @@ bool ContextualCheckTransaction(
         if (IsExpiredTx(tx, nHeight)) {
             // Don't increase banscore if the transaction only just expired
             int expiredDosLevel = IsExpiredTx(tx, nHeight - 1) ? (dosLevel > 10 ? dosLevel : 10) : 0;
-            
-            return state.DoS(expiredDosLevel, error("ContextualCheckTransaction(): transaction %s is expired, expiry block %i vs current block %i",tx.GetHash().ToString(),tx.nExpiryHeight,nHeight), REJECT_INVALID, "tx-overwinter-expired");
+            string strHex = EncodeHexTx(tx);
+            //fprintf(stderr, "transaction exipred.%s\n",strHex.c_str());
+            return state.DoS(expiredDosLevel, error("ContextualCheckTransaction(): transaction %s is expired, expiry block %i vs current block %i\n txhex.%s",tx.GetHash().ToString(),tx.nExpiryHeight,nHeight,strHex), REJECT_INVALID, "tx-overwinter-expired");
         }
     }
 
diff --git a/src/rpc/misc.cpp b/src/rpc/misc.cpp
index 564d76c9c..a6b0e7923 100644
--- a/src/rpc/misc.cpp
+++ b/src/rpc/misc.cpp
@@ -86,10 +86,10 @@ extern int32_t ASSETCHAINS_LWMAPOS,ASSETCHAINS_SAPLING,ASSETCHAINS_STAKED;
 extern uint64_t ASSETCHAINS_ENDSUBSIDY[],ASSETCHAINS_REWARD[],ASSETCHAINS_HALVING[],ASSETCHAINS_DECAY[],ASSETCHAINS_NOTARY_PAY[];
 extern std::string NOTARY_PUBKEY,NOTARY_ADDRESS; extern uint8_t NOTARY_PUBKEY33[];
 
-int32_t getera(int now)
+int32_t getera(int timestamp)
 {
     for (int32_t i = 0; i < NUM_STAKED_ERAS; i++) {
-        if ( now <= STAKED_NOTARIES_TIMESTAMP[i] ) {
+        if ( timestamp <= STAKED_NOTARIES_TIMESTAMP[i] ) {
             return(i);
         }
     }
@@ -163,6 +163,32 @@ UniValue getnotarysendmany(const UniValue& params, bool fHelp)
     return ret;
 }
 
+UniValue geterablockheights(const UniValue& params, bool fHelp)
+{
+    if (fHelp || params.size() != 0)
+      throw runtime_error(
+          "getnotarysendmany\n"
+          "Returns a JSON object with the first block in each era.\n"
+          );
+      
+    CBlockIndex *pindex; int8_t lastera,era = 0; UniValue ret(UniValue::VOBJ);
+
+    for (size_t i = 1; i < chainActive.LastTip()->GetHeight(); i++)
+    {
+        pindex = chainActive[i];
+        era = getera(pindex->nTime)+1;
+        if ( era > lastera )
+        {
+            char str[16];
+            sprintf(str, "%d", era);
+            ret.push_back(Pair(str,i));
+            lastera = era;
+        }
+    }
+    
+    return(ret);
+}
+
 UniValue getinfo(const UniValue& params, bool fHelp)
 {
     uint256 notarized_hash,notarized_desttxid; int32_t prevMoMheight,notarized_height,longestchain,kmdnotarized_height,txid_height;
diff --git a/src/rpc/server.cpp b/src/rpc/server.cpp
index 89baeddf5..46eb95a25 100644
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -293,6 +293,7 @@ static const CRPCCommand vRPCCommands[] =
     { "control",            "help",                   &help,                   true  },
     { "control",            "getiguanajson",          &getiguanajson,          true  },
     { "control",            "getnotarysendmany",      &getnotarysendmany,      true  },
+    { "control",            "geterablockheights",     &geterablockheights,     true  },
     { "control",            "stop",                   &stop,                   true  },
 
     /* P2P networking */
diff --git a/src/rpc/server.h b/src/rpc/server.h
index 6aedeb254..abd0ea6a8 100644
--- a/src/rpc/server.h
+++ b/src/rpc/server.h
@@ -381,6 +381,7 @@ extern UniValue decodeccopret(const UniValue& params, bool fHelp);
 extern UniValue getinfo(const UniValue& params, bool fHelp);
 extern UniValue getiguanajson(const UniValue& params, bool fHelp);
 extern UniValue getnotarysendmany(const UniValue& params, bool fHelp);
+extern UniValue geterablockheights(const UniValue& params, bool fHelp);
 extern UniValue setpubkey(const UniValue& params, bool fHelp);
 extern UniValue getwalletinfo(const UniValue& params, bool fHelp);
 extern UniValue getblockchaininfo(const UniValue& params, bool fHelp);