Core RPC: optionally add POW hash to block_header_response

src/daemon/rpc_command_executor.cpp

@@ -74,6 +74,7 @@ namespace {
       << "depth: " << boost::lexical_cast<std::string>(header.depth) << std::endl
       << "hash: " << header.hash << std::endl
       << "difficulty: " << boost::lexical_cast<std::string>(header.difficulty) << std::endl
+      << "POW hash: " << header.pow_hash << std::endl
       << "reward: " << boost::lexical_cast<std::string>(header.reward);
   }
 
@@ -654,6 +655,7 @@ bool t_rpc_command_executor::print_block_by_hash(crypto::hash block_hash) {
   epee::json_rpc::error error_resp;
 
   req.hash = epee::string_tools::pod_to_hex(block_hash);
+  req.fill_pow_hash = true;
 
   std::string fail_message = "Unsuccessful";
 
@@ -685,6 +687,7 @@ bool t_rpc_command_executor::print_block_by_height(uint64_t height) {
   epee::json_rpc::error error_resp;
 
   req.height = height;
+  req.fill_pow_hash = true;
 
   std::string fail_message = "Unsuccessful";
 

src/rpc/core_rpc_server.cpp

@@ -1229,7 +1229,7 @@ namespace cryptonote
     return reward;
   }
   //------------------------------------------------------------------------------------------------------------------------------
-  bool core_rpc_server::fill_block_header_response(const block& blk, bool orphan_status, uint64_t height, const crypto::hash& hash, block_header_response& response)
+  bool core_rpc_server::fill_block_header_response(const block& blk, bool orphan_status, uint64_t height, const crypto::hash& hash, block_header_response& response, bool fill_pow_hash)
   {
     PERF_TIMER(fill_block_header_response);
     response.major_version = blk.major_version;
@@ -1245,6 +1245,7 @@ namespace cryptonote
     response.reward = get_block_reward(blk);
     response.block_size = m_core.get_blockchain_storage().get_db().get_block_size(height);
     response.num_txes = blk.tx_hashes.size();
+    response.pow_hash = fill_pow_hash ? string_tools::pod_to_hex(get_block_longhash(blk, height)) : "";
     return true;
   }
   //------------------------------------------------------------------------------------------------------------------------------
@@ -1334,7 +1335,7 @@ namespace cryptonote
       error_resp.message = "Internal error: can't get last block.";
       return false;
     }
-    bool response_filled = fill_block_header_response(last_block, false, last_block_height, last_block_hash, res.block_header);
+    bool response_filled = fill_block_header_response(last_block, false, last_block_height, last_block_hash, res.block_header, req.fill_pow_hash);
     if (!response_filled)
     {
       error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
@@ -1375,7 +1376,7 @@ namespace cryptonote
       return false;
     }
     uint64_t block_height = boost::get<txin_gen>(blk.miner_tx.vin.front()).height;
-    bool response_filled = fill_block_header_response(blk, orphan, block_height, block_hash, res.block_header);
+    bool response_filled = fill_block_header_response(blk, orphan, block_height, block_hash, res.block_header, req.fill_pow_hash);
     if (!response_filled)
     {
       error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
@@ -1424,7 +1425,7 @@ namespace cryptonote
         return false;
       }
       res.headers.push_back(block_header_response());
-      bool response_filled = fill_block_header_response(blk, false, block_height, block_hash, res.headers.back());
+      bool response_filled = fill_block_header_response(blk, false, block_height, block_hash, res.headers.back(), req.fill_pow_hash);
       if (!response_filled)
       {
         error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
@@ -1457,7 +1458,7 @@ namespace cryptonote
       error_resp.message = "Internal error: can't get block by height. Height = " + std::to_string(req.height) + '.';
       return false;
     }
-    bool response_filled = fill_block_header_response(blk, false, req.height, block_hash, res.block_header);
+    bool response_filled = fill_block_header_response(blk, false, req.height, block_hash, res.block_header, req.fill_pow_hash);
     if (!response_filled)
     {
       error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
@@ -1511,7 +1512,7 @@ namespace cryptonote
       return false;
     }
     uint64_t block_height = boost::get<txin_gen>(blk.miner_tx.vin.front()).height;
-    bool response_filled = fill_block_header_response(blk, orphan, block_height, block_hash, res.block_header);
+    bool response_filled = fill_block_header_response(blk, orphan, block_height, block_hash, res.block_header, req.fill_pow_hash);
     if (!response_filled)
     {
       error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;

src/rpc/core_rpc_server.h

@@ -224,7 +224,7 @@ private:
     
     //utils
     uint64_t get_block_reward(const block& blk);
-    bool fill_block_header_response(const block& blk, bool orphan_status, uint64_t height, const crypto::hash& hash, block_header_response& response);
+    bool fill_block_header_response(const block& blk, bool orphan_status, uint64_t height, const crypto::hash& hash, block_header_response& response, bool fill_pow_hash);
     enum invoke_http_mode { JON, BIN, JON_RPC };
     template <typename COMMAND_TYPE>
     bool use_bootstrap_daemon_if_necessary(const invoke_http_mode &mode, const std::string &command_name, const typename COMMAND_TYPE::request& req, typename COMMAND_TYPE::response& res, bool &r);

src/rpc/core_rpc_server_commands_defs.h

@@ -49,7 +49,7 @@ namespace cryptonote
 // advance which version they will stop working with
 // Don't go over 32767 for any of these
 #define CORE_RPC_VERSION_MAJOR 1
-#define CORE_RPC_VERSION_MINOR 19
+#define CORE_RPC_VERSION_MINOR 20
 #define MAKE_CORE_RPC_VERSION(major,minor) (((major)<<16)|(minor))
 #define CORE_RPC_VERSION MAKE_CORE_RPC_VERSION(CORE_RPC_VERSION_MAJOR, CORE_RPC_VERSION_MINOR)
 
@@ -1163,6 +1163,7 @@ namespace cryptonote
       uint64_t reward;
       uint64_t block_size;
       uint64_t num_txes;
+      std::string pow_hash;
       
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(major_version)
@@ -1178,6 +1179,7 @@ namespace cryptonote
         KV_SERIALIZE(reward)
         KV_SERIALIZE(block_size)
         KV_SERIALIZE(num_txes)
+        KV_SERIALIZE(pow_hash)
       END_KV_SERIALIZE_MAP()
   };
 
@@ -1185,7 +1187,10 @@ namespace cryptonote
   {
     struct request
     {
+      bool fill_pow_hash;
+
       BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE_OPT(fill_pow_hash, false);
       END_KV_SERIALIZE_MAP()
     };
 
@@ -1209,9 +1214,11 @@ namespace cryptonote
     struct request
     {
       std::string hash;
+      bool fill_pow_hash;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(hash)
+        KV_SERIALIZE_OPT(fill_pow_hash, false);
       END_KV_SERIALIZE_MAP()
     };
 
@@ -1235,9 +1242,11 @@ namespace cryptonote
     struct request
     {
       uint64_t height;
+      bool fill_pow_hash;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(height)
+        KV_SERIALIZE_OPT(fill_pow_hash, false);
       END_KV_SERIALIZE_MAP()
     };
 
@@ -1262,10 +1271,12 @@ namespace cryptonote
     {
       std::string hash;
       uint64_t height;
+      bool fill_pow_hash;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(hash)
         KV_SERIALIZE(height)
+        KV_SERIALIZE_OPT(fill_pow_hash, false);
       END_KV_SERIALIZE_MAP()
     };
 
@@ -1618,10 +1629,12 @@ namespace cryptonote
     {
       uint64_t start_height;
       uint64_t end_height;
+      bool fill_pow_hash;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(start_height)
         KV_SERIALIZE(end_height)
+        KV_SERIALIZE_OPT(fill_pow_hash, false);
       END_KV_SERIALIZE_MAP()
     };