From 4cd7913a047b799728d6b04289c45c300c0ff613 Mon Sep 17 00:00:00 2001
From: Brendan Telzrow <telzrowb@gmail.com>
Date: Wed, 23 Dec 2015 10:04:04 -0600
Subject: [PATCH] added RPC wallet command getheight

---
 .gitignore                                   |  1 +
 src/wallet/wallet_rpc_server.cpp             | 17 ++++++++++++++++-
 src/wallet/wallet_rpc_server.h               |  2 ++
 src/wallet/wallet_rpc_server_commands_defs.h | 17 +++++++++++++++++
 4 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 18653c238..622bbdb3a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -101,4 +101,5 @@ local.properties
 
 # TeXlipse plugin
 .texlipse
+.idea/
 
diff --git a/src/wallet/wallet_rpc_server.cpp b/src/wallet/wallet_rpc_server.cpp
index 026b78d2e..a1f48bd77 100644
--- a/src/wallet/wallet_rpc_server.cpp
+++ b/src/wallet/wallet_rpc_server.cpp
@@ -115,7 +115,21 @@ namespace tools
     }
     return true;
   }
-
+  //------------------------------------------------------------------------------------------------------------------------------
+  bool wallet_rpc_server::on_getheight(const wallet_rpc::COMMAND_RPC_GET_HEIGHT::request& req, wallet_rpc::COMMAND_RPC_GET_HEIGHT::response& res, epee::json_rpc::error& er)
+  {
+    try
+    {
+      res.height = m_wallet.get_blockchain_current_height();
+    }
+    catch (std::exception& e)
+    {
+      er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
+      er.message = e.what();
+      return false;
+    }
+    return true;
+  }
   //------------------------------------------------------------------------------------------------------------------------------
   bool wallet_rpc_server::validate_transfer(const std::list<wallet_rpc::transfer_destination> destinations, std::string payment_id, std::vector<cryptonote::tx_destination_entry>& dsts, std::vector<uint8_t>& extra, epee::json_rpc::error& er)
   {
@@ -652,3 +666,4 @@ namespace tools
   }
   //------------------------------------------------------------------------------------------------------------------------------
 }
+
diff --git a/src/wallet/wallet_rpc_server.h b/src/wallet/wallet_rpc_server.h
index c81ab0141..a7c5077e9 100644
--- a/src/wallet/wallet_rpc_server.h
+++ b/src/wallet/wallet_rpc_server.h
@@ -63,6 +63,7 @@ namespace tools
       BEGIN_JSON_RPC_MAP("/json_rpc")
         MAP_JON_RPC_WE("getbalance",         on_getbalance,         wallet_rpc::COMMAND_RPC_GET_BALANCE)
         MAP_JON_RPC_WE("getaddress",         on_getaddress,         wallet_rpc::COMMAND_RPC_GET_ADDRESS)
+        MAP_JON_RPC_WE("getheight",          on_getheight,          wallet_rpc::COMMAND_RPC_GET_HEIGHT)
         MAP_JON_RPC_WE("transfer",           on_transfer,           wallet_rpc::COMMAND_RPC_TRANSFER)
         MAP_JON_RPC_WE("transfer_split",     on_transfer_split,     wallet_rpc::COMMAND_RPC_TRANSFER_SPLIT)
         MAP_JON_RPC_WE("sweep_dust",         on_sweep_dust,         wallet_rpc::COMMAND_RPC_SWEEP_DUST)
@@ -80,6 +81,7 @@ namespace tools
       //json_rpc
       bool on_getbalance(const wallet_rpc::COMMAND_RPC_GET_BALANCE::request& req, wallet_rpc::COMMAND_RPC_GET_BALANCE::response& res, epee::json_rpc::error& er);
       bool on_getaddress(const wallet_rpc::COMMAND_RPC_GET_ADDRESS::request& req, wallet_rpc::COMMAND_RPC_GET_ADDRESS::response& res, epee::json_rpc::error& er);
+      bool on_getheight(const wallet_rpc::COMMAND_RPC_GET_HEIGHT::request& req, wallet_rpc::COMMAND_RPC_GET_HEIGHT::response& res, epee::json_rpc::error& er);
       bool validate_transfer(const std::list<wallet_rpc::transfer_destination> destinations, const std::string payment_id, std::vector<cryptonote::tx_destination_entry>& dsts, std::vector<uint8_t>& extra, epee::json_rpc::error& er);
       bool on_transfer(const wallet_rpc::COMMAND_RPC_TRANSFER::request& req, wallet_rpc::COMMAND_RPC_TRANSFER::response& res, epee::json_rpc::error& er);
       bool on_transfer_split(const wallet_rpc::COMMAND_RPC_TRANSFER_SPLIT::request& req, wallet_rpc::COMMAND_RPC_TRANSFER_SPLIT::response& res, epee::json_rpc::error& er);
diff --git a/src/wallet/wallet_rpc_server_commands_defs.h b/src/wallet/wallet_rpc_server_commands_defs.h
index e12c4bfa8..678e2d2ca 100644
--- a/src/wallet/wallet_rpc_server_commands_defs.h
+++ b/src/wallet/wallet_rpc_server_commands_defs.h
@@ -78,6 +78,23 @@ namespace wallet_rpc
     };
   };
 
+    struct COMMAND_RPC_GET_HEIGHT
+    {
+      struct request
+      {
+        BEGIN_KV_SERIALIZE_MAP()
+        END_KV_SERIALIZE_MAP()
+      };
+
+      struct response
+      {
+          std::string   height;
+          BEGIN_KV_SERIALIZE_MAP()
+            KV_SERIALIZE(height)
+          END_KV_SERIALIZE_MAP()
+      };
+    };
+
   struct transfer_destination
   {
     uint64_t amount;