Add GET_HASHES_FAST rpc, use it in wallet

When m_refresh_from_block_height has been set, only hashes will be
retrieved up to that height, instead of full blocks. The same will
be done for "refresh <height>" when the specified height is beyond
the current local blockchain.

3 files changed, 51 insertions, 0 deletions

diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index 9fcb4373b..9e8d1108e 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -166,6 +166,25 @@ namespace cryptonote
     return true;
   }
   //------------------------------------------------------------------------------------------------------------------------------
+  bool core_rpc_server::on_get_hashes(const COMMAND_RPC_GET_HASHES_FAST::request& req, COMMAND_RPC_GET_HASHES_FAST::response& res)
+  {
+    CHECK_CORE_BUSY();
+    NOTIFY_RESPONSE_CHAIN_ENTRY::request resp;
+
+    resp.start_height = req.start_height;
+    if(!m_core.find_blockchain_supplement(req.block_ids, resp))
+    {
+      res.status = "Failed";
+      return false;
+    }
+    res.current_height = resp.total_height;
+    res.start_height = resp.start_height;
+    res.m_block_ids = std::move(resp.m_block_ids);
+
+    res.status = CORE_RPC_STATUS_OK;
+    return true;
+  }
+  //------------------------------------------------------------------------------------------------------------------------------
   bool core_rpc_server::on_get_random_outs(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res)
   {
     CHECK_CORE_BUSY();
diff --git a/src/rpc/core_rpc_server.h b/src/rpc/core_rpc_server.h
index 5c3707209..4bed148fe 100644
--- a/src/rpc/core_rpc_server.h
+++ b/src/rpc/core_rpc_server.h
@@ -75,6 +75,7 @@ namespace cryptonote
     BEGIN_URI_MAP2()
       MAP_URI_AUTO_JON2("/getheight", on_get_height, COMMAND_RPC_GET_HEIGHT)
       MAP_URI_AUTO_BIN2("/getblocks.bin", on_get_blocks, COMMAND_RPC_GET_BLOCKS_FAST)
+      MAP_URI_AUTO_BIN2("/gethashes.bin", on_get_hashes, COMMAND_RPC_GET_HASHES_FAST)
       MAP_URI_AUTO_BIN2("/get_o_indexes.bin", on_get_indexes, COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES)      
       MAP_URI_AUTO_BIN2("/getrandom_outs.bin", on_get_random_outs, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS)      
       MAP_URI_AUTO_JON2("/gettransactions", on_get_transactions, COMMAND_RPC_GET_TRANSACTIONS)
@@ -115,6 +116,7 @@ namespace cryptonote
 
     bool on_get_height(const COMMAND_RPC_GET_HEIGHT::request& req, COMMAND_RPC_GET_HEIGHT::response& res);
     bool on_get_blocks(const COMMAND_RPC_GET_BLOCKS_FAST::request& req, COMMAND_RPC_GET_BLOCKS_FAST::response& res);
+    bool on_get_hashes(const COMMAND_RPC_GET_HASHES_FAST::request& req, COMMAND_RPC_GET_HASHES_FAST::response& res);
     bool on_get_transactions(const COMMAND_RPC_GET_TRANSACTIONS::request& req, COMMAND_RPC_GET_TRANSACTIONS::response& res);
     bool on_is_key_image_spent(const COMMAND_RPC_IS_KEY_IMAGE_SPENT::request& req, COMMAND_RPC_IS_KEY_IMAGE_SPENT::response& res);
     bool on_get_indexes(const COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES::request& req, COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES::response& res);
diff --git a/src/rpc/core_rpc_server_commands_defs.h b/src/rpc/core_rpc_server_commands_defs.h
index 6067a28b7..392c7501f 100644
--- a/src/rpc/core_rpc_server_commands_defs.h
+++ b/src/rpc/core_rpc_server_commands_defs.h
@@ -89,6 +89,36 @@ namespace cryptonote
       END_KV_SERIALIZE_MAP()
     };
   };
+
+  struct COMMAND_RPC_GET_HASHES_FAST
+  {
+
+    struct request
+    {
+      std::list<crypto::hash> block_ids; //*first 10 blocks id goes sequential, next goes in pow(2,n) offset, like 2, 4, 8, 16, 32, 64 and so on, and the last one is always genesis block */
+      uint64_t    start_height;
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE_CONTAINER_POD_AS_BLOB(block_ids)
+        KV_SERIALIZE(start_height)
+      END_KV_SERIALIZE_MAP()
+    };
+
+    struct response
+    {
+      std::list<crypto::hash> m_block_ids;
+      uint64_t    start_height;
+      uint64_t    current_height;
+      std::string status;
+
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE_CONTAINER_POD_AS_BLOB(m_block_ids)
+        KV_SERIALIZE(start_height)
+        KV_SERIALIZE(current_height)
+        KV_SERIALIZE(status)
+      END_KV_SERIALIZE_MAP()
+    };
+  };
+
   //-----------------------------------------------
   struct COMMAND_RPC_GET_TRANSACTIONS
   {