Add calcpow RPC

Calculate PoW hash for a block candidate

1 files changed, 37 insertions, 0 deletions

diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index da36f3c64..28ea03d28 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -1912,6 +1912,43 @@ namespace cryptonote
     return true;
   }
   //------------------------------------------------------------------------------------------------------------------------------
+  bool core_rpc_server::on_calcpow(const COMMAND_RPC_CALCPOW::request& req, COMMAND_RPC_CALCPOW::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx)
+  {
+    RPC_TRACKER(calcpow);
+
+    blobdata blockblob;
+    if(!string_tools::parse_hexstr_to_binbuff(req.block_blob, blockblob))
+    {
+      error_resp.code = CORE_RPC_ERROR_CODE_WRONG_BLOCKBLOB;
+      error_resp.message = "Wrong block blob";
+      return false;
+    }
+    if(!m_core.check_incoming_block_size(blockblob))
+    {
+      error_resp.code = CORE_RPC_ERROR_CODE_WRONG_BLOCKBLOB_SIZE;
+      error_resp.message = "Block blob size is too big, rejecting block";
+      return false;
+    }
+    crypto::hash seed_hash, pow_hash;
+    std::string buf;
+    if(req.seed_hash.size())
+    {
+      if (!string_tools::parse_hexstr_to_binbuff(req.seed_hash, buf) ||
+        buf.size() != sizeof(crypto::hash))
+      {
+        error_resp.code = CORE_RPC_ERROR_CODE_WRONG_PARAM;
+        error_resp.message = "Wrong seed hash";
+        return false;
+      }
+      buf.copy(reinterpret_cast<char *>(&seed_hash), sizeof(crypto::hash));
+    }
+
+    cryptonote::get_block_longhash(&(m_core.get_blockchain_storage()), blockblob, pow_hash, req.height,
+      req.major_version, req.seed_hash.size() ? &seed_hash : NULL, 0);
+    res = string_tools::pod_to_hex(pow_hash);
+    return true;
+  }
+  //------------------------------------------------------------------------------------------------------------------------------
   bool core_rpc_server::on_add_aux_pow(const COMMAND_RPC_ADD_AUX_POW::request& req, COMMAND_RPC_ADD_AUX_POW::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx)
   {
     RPC_TRACKER(add_aux_pow);