From d01f760404a03e4736cdc2159a957b985d89334b Mon Sep 17 00:00:00 2001
From: moneroexamples <moneroexamples@tuta.io>
Date: Thu, 28 Dec 2017 08:36:19 +0800
Subject: [PATCH] rpccalls::get_hardfork_info added

https://github.com/moneroexamples/onion-monero-blockchain-explorer/issues/92
---
 src/MempoolStatus.cpp |  9 ++++---
 src/rpccalls.cpp      | 62 +++++++++++++++++++++++++++++++++++++++++++
 src/rpccalls.h        |  3 +++
 3 files changed, 71 insertions(+), 3 deletions(-)

diff --git a/src/MempoolStatus.cpp b/src/MempoolStatus.cpp
index 4d186e0..660d9be 100644
--- a/src/MempoolStatus.cpp
+++ b/src/MempoolStatus.cpp
@@ -211,9 +211,7 @@ MempoolStatus::read_network_info()
     COMMAND_RPC_GET_INFO::response rpc_network_info;
 
     if (!rpc.get_network_info(rpc_network_info))
-    {
         return false;
-    }
 
     uint64_t fee_estimated;
 
@@ -229,6 +227,11 @@ MempoolStatus::read_network_info()
 
     (void) error_msg;
 
+    COMMAND_RPC_HARD_FORK_INFO::response rpc_hardfork_info;
+
+    if (!rpc.get_hardfork_info(rpc_hardfork_info))
+        return false;
+
 
     network_info local_copy;
 
@@ -254,7 +257,7 @@ MempoolStatus::read_network_info()
     local_copy.fee_per_kb                 = fee_estimated;
     local_copy.info_timestamp             = static_cast<uint64_t>(std::time(nullptr));
 
-    local_copy.current_hf_version         = core_storage->get_current_hard_fork_version();
+    local_copy.current_hf_version         = rpc_hardfork_info.version;
 
     local_copy.current                    = true;
 
diff --git a/src/rpccalls.cpp b/src/rpccalls.cpp
index 036b8ff..d9711be 100644
--- a/src/rpccalls.cpp
+++ b/src/rpccalls.cpp
@@ -207,6 +207,68 @@ rpccalls::get_network_info(COMMAND_RPC_GET_INFO::response& response)
 }
 
 
+bool
+rpccalls::get_hardfork_info(COMMAND_RPC_HARD_FORK_INFO::response& response)
+{
+    epee::json_rpc::request<cryptonote::COMMAND_RPC_HARD_FORK_INFO::request> req_t = AUTO_VAL_INIT(req_t);
+    epee::json_rpc::response<cryptonote::COMMAND_RPC_HARD_FORK_INFO::response, std::string> resp_t = AUTO_VAL_INIT(resp_t);
+
+
+    bool r {false};
+
+    req_t.jsonrpc = "2.0";
+    req_t.id = epee::serialization::storage_entry(0);
+    req_t.method = "hard_fork_info";
+
+    {
+        std::lock_guard<std::mutex> guard(m_daemon_rpc_mutex);
+
+        if (!connect_to_monero_deamon())
+        {
+            cerr << "get_hardfork_info: not connected to deamon" << endl;
+            return false;
+        }
+
+        r = epee::net_utils::invoke_http_json("/json_rpc",
+                                              req_t, resp_t,
+                                              m_http_client);
+    }
+
+
+    string err;
+
+    if (r)
+    {
+        if (resp_t.result.status == CORE_RPC_STATUS_BUSY)
+        {
+            err = "daemon is busy. Please try again later.";
+        }
+        else if (resp_t.result.status != CORE_RPC_STATUS_OK)
+        {
+            err = resp_t.result.status;
+        }
+
+        if (!err.empty())
+        {
+            cerr << "Error connecting to Monero deamon due to "
+                 << err << endl;
+            return false;
+        }
+    }
+    else
+    {
+        cerr << "Error connecting to Monero deamon at "
+             << deamon_url << endl;
+        return false;
+    }
+
+    response = resp_t.result;
+
+    return true;
+}
+
+
+
 bool
 rpccalls::get_dynamic_per_kb_fee_estimate(
         uint64_t grace_blocks,
diff --git a/src/rpccalls.h b/src/rpccalls.h
index 1e8ef83..720936e 100644
--- a/src/rpccalls.h
+++ b/src/rpccalls.h
@@ -99,6 +99,9 @@ public:
     bool
     get_network_info(COMMAND_RPC_GET_INFO::response& info);
 
+    bool
+    get_hardfork_info( COMMAND_RPC_HARD_FORK_INFO::response& res);
+
     bool
     get_dynamic_per_kb_fee_estimate(
             uint64_t grace_blocks,