1 files changed, 28 insertions, 0 deletions
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index 798a73c4f..833e8120c 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -1803,6 +1803,34 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
     }
     bei.cumulative_difficulty += current_diff;
 
+    bei.block_cumulative_weight = cryptonote::get_transaction_weight(b.miner_tx);
+    for (const crypto::hash &txid: b.tx_hashes)
+    {
+      cryptonote::tx_memory_pool::tx_details td;
+      cryptonote::blobdata blob;
+      if (m_tx_pool.get_transaction_info(txid, td))
+      {
+        bei.block_cumulative_weight += td.weight;
+      }
+      else if (m_db->get_pruned_tx_blob(txid, blob))
+      {
+        cryptonote::transaction tx;
+        if (!cryptonote::parse_and_validate_tx_base_from_blob(blob, tx))
+        {
+          MERROR_VER("Block with id: " << epee::string_tools::pod_to_hex(id) << " (as alternative) refers to unparsable transaction hash " << txid << ".");
+          bvc.m_verifivation_failed = true;
+          return false;
+        }
+        bei.block_cumulative_weight += cryptonote::get_pruned_transaction_weight(tx);
+      }
+      else
+      {
+        // we can't determine the block weight, set it to 0 and break out of the loop
+        bei.block_cumulative_weight = 0;
+        break;
+      }
+    }
+
     // add block to alternate blocks storage,
     // as well as the current "alt chain" container
     CHECK_AND_ASSERT_MES(!m_db->get_alt_block(id, NULL, NULL), false, "insertion of new alternative block returned as it already exists");