From 9d2974ed5b4e32d7a3787e10642ee80910f8a5e7 Mon Sep 17 00:00:00 2001
From: Jay Graber <jay@z.cash>
Date: Wed, 27 Dec 2017 12:58:42 -0800
Subject: [PATCH 1/2] Add getdeprecationinfo rpc call to return current version
 and deprecation block height.

---
 src/rpcnet.cpp    | 28 ++++++++++++++++++++++++++++
 src/rpcserver.cpp |  1 +
 src/rpcserver.h   |  1 +
 3 files changed, 30 insertions(+)

diff --git a/src/rpcnet.cpp b/src/rpcnet.cpp
index dc46c786e..03d96f8b2 100644
--- a/src/rpcnet.cpp
+++ b/src/rpcnet.cpp
@@ -13,6 +13,7 @@
 #include "timedata.h"
 #include "util.h"
 #include "version.h"
+#include "deprecation.h"
 
 #include <boost/foreach.hpp>
 
@@ -398,6 +399,33 @@ static UniValue GetNetworksInfo()
     return networks;
 }
 
+UniValue getdeprecationinfo(const UniValue& params, bool fHelp)
+{
+    if (fHelp || params.size() != 0)
+        throw runtime_error(
+            "getdeprecationinfo\n"
+            "Returns an object containing current version and deprecation block height.\n"
+            "\nResult:\n"
+            "{\n"
+            "  \"version\": xxxxx,                      (numeric) the server version\n"
+            "  \"subversion\": \"/MagicBean:x.y.z[-v]/\",     (string) the server subversion string\n"
+            "  \"deprecationheight\": xxxxx,            (numeric) the block height at which this version will deprecate and shut down (unless -disabledeprecation is set)\n"
+            "}\n"
+            "\nExamples:\n"
+            + HelpExampleCli("getdeprecationinfo", "")
+            + HelpExampleRpc("getdeprecationinfo", "")
+        );
+
+
+    UniValue obj(UniValue::VOBJ);
+    obj.push_back(Pair("version",       CLIENT_VERSION));
+    obj.push_back(Pair("subversion",
+        FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, std::vector<string>())));
+    obj.push_back(Pair("deprecationheight", DEPRECATION_HEIGHT));
+
+    return obj;
+}
+
 UniValue getnetworkinfo(const UniValue& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
diff --git a/src/rpcserver.cpp b/src/rpcserver.cpp
index 7a3880902..b531b2883 100644
--- a/src/rpcserver.cpp
+++ b/src/rpcserver.cpp
@@ -265,6 +265,7 @@ static const CRPCCommand vRPCCommands[] =
 
     /* P2P networking */
     { "network",            "getnetworkinfo",         &getnetworkinfo,         true  },
+    { "network",            "getdeprecationinfo",     &getdeprecationinfo,     true  },
     { "network",            "addnode",                &addnode,                true  },
     { "network",            "disconnectnode",         &disconnectnode,         true  },
     { "network",            "getaddednodeinfo",       &getaddednodeinfo,       true  },
diff --git a/src/rpcserver.h b/src/rpcserver.h
index 321568748..178befd38 100644
--- a/src/rpcserver.h
+++ b/src/rpcserver.h
@@ -238,6 +238,7 @@ extern UniValue getinfo(const UniValue& params, bool fHelp);
 extern UniValue getwalletinfo(const UniValue& params, bool fHelp);
 extern UniValue getblockchaininfo(const UniValue& params, bool fHelp);
 extern UniValue getnetworkinfo(const UniValue& params, bool fHelp);
+extern UniValue getdeprecationinfo(const UniValue& params, bool fHelp);
 extern UniValue setmocktime(const UniValue& params, bool fHelp);
 extern UniValue resendwallettransactions(const UniValue& params, bool fHelp);
 extern UniValue zc_benchmark(const UniValue& params, bool fHelp);

From df46562f261592d8a5ddde14dea5d208269db260 Mon Sep 17 00:00:00 2001
From: Jay Graber <jay@z.cash>
Date: Wed, 17 Jan 2018 01:25:58 -0800
Subject: [PATCH 2/2] Make applicable only on mainnet

---
 src/rpcnet.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/rpcnet.cpp b/src/rpcnet.cpp
index 03d96f8b2..6f908516d 100644
--- a/src/rpcnet.cpp
+++ b/src/rpcnet.cpp
@@ -401,10 +401,11 @@ static UniValue GetNetworksInfo()
 
 UniValue getdeprecationinfo(const UniValue& params, bool fHelp)
 {
-    if (fHelp || params.size() != 0)
+    const CChainParams& chainparams = Params();
+    if (fHelp || params.size() != 0 || chainparams.NetworkIDString() != "main")
         throw runtime_error(
             "getdeprecationinfo\n"
-            "Returns an object containing current version and deprecation block height.\n"
+            "Returns an object containing current version and deprecation block height. Applicable only on mainnet.\n"
             "\nResult:\n"
             "{\n"
             "  \"version\": xxxxx,                      (numeric) the server version\n"
@@ -416,9 +417,8 @@ UniValue getdeprecationinfo(const UniValue& params, bool fHelp)
             + HelpExampleRpc("getdeprecationinfo", "")
         );
 
-
     UniValue obj(UniValue::VOBJ);
-    obj.push_back(Pair("version",       CLIENT_VERSION));
+    obj.push_back(Pair("version", CLIENT_VERSION));
     obj.push_back(Pair("subversion",
         FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, std::vector<string>())));
     obj.push_back(Pair("deprecationheight", DEPRECATION_HEIGHT));