daemon: add more chain specific info in alt_chain_info

1 files changed, 45 insertions, 28 deletions

diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index c6c6553f3..55f2ccdaf 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -1593,38 +1593,55 @@ namespace cryptonote
     if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_BLOCK_HEADER_BY_HASH>(invoke_http_mode::JON_RPC, "getblockheaderbyhash", req, res, r))
       return r;
 
-    crypto::hash block_hash;
-    bool hash_parsed = parse_hash256(req.hash, block_hash);
-    if(!hash_parsed)
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_WRONG_PARAM;
-      error_resp.message = "Failed to parse hex representation of block hash. Hex = " + req.hash + '.';
-      return false;
-    }
-    block blk;
-    bool orphan = false;
-    bool have_block = m_core.get_block_by_hash(block_hash, blk, &orphan);
-    if (!have_block)
-    {
-      error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
-      error_resp.message = "Internal error: can't get block by hash. Hash = " + req.hash + '.';
-      return false;
-    }
-    if (blk.miner_tx.vin.size() != 1 || blk.miner_tx.vin.front().type() != typeid(txin_gen))
+    auto get = [this](const std::string &hash, bool fill_pow_hash, block_header_response &block_header, bool restricted, epee::json_rpc::error& error_resp) -> bool {
+      crypto::hash block_hash;
+      bool hash_parsed = parse_hash256(hash, block_hash);
+      if(!hash_parsed)
+      {
+        error_resp.code = CORE_RPC_ERROR_CODE_WRONG_PARAM;
+        error_resp.message = "Failed to parse hex representation of block hash. Hex = " + hash + '.';
+        return false;
+      }
+      block blk;
+      bool orphan = false;
+      bool have_block = m_core.get_block_by_hash(block_hash, blk, &orphan);
+      if (!have_block)
+      {
+        error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
+        error_resp.message = "Internal error: can't get block by hash. Hash = " + hash + '.';
+        return false;
+      }
+      if (blk.miner_tx.vin.size() != 1 || blk.miner_tx.vin.front().type() != typeid(txin_gen))
+      {
+        error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
+        error_resp.message = "Internal error: coinbase transaction in the block has the wrong type";
+        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, block_header, fill_pow_hash && !restricted);
+      if (!response_filled)
+      {
+        error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
+        error_resp.message = "Internal error: can't produce valid response.";
+        return false;
+      }
+      return true;
+    };
+
+    const bool restricted = m_restricted && ctx;
+    if (!req.hash.empty())
     {
-      error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
-      error_resp.message = "Internal error: coinbase transaction in the block has the wrong type";
-      return false;
+      if (!get(req.hash, req.fill_pow_hash, res.block_header, restricted, error_resp))
+        return false;
     }
-    uint64_t block_height = boost::get<txin_gen>(blk.miner_tx.vin.front()).height;
-    const bool restricted = m_restricted && ctx;
-    bool response_filled = fill_block_header_response(blk, orphan, block_height, block_hash, res.block_header, req.fill_pow_hash && !restricted);
-    if (!response_filled)
+    res.block_headers.reserve(req.hashes.size());
+    for (const std::string &hash: req.hashes)
     {
-      error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
-      error_resp.message = "Internal error: can't produce valid response.";
-      return false;
+      res.block_headers.push_back({});
+      if (!get(hash, req.fill_pow_hash, res.block_headers.back(), restricted, error_resp))
+        return false;
     }
+
     res.status = CORE_RPC_STATUS_OK;
     return true;
   }