provide key images of spent outputs in wallet rpc

src/wallet/wallet_rpc_server.cpp

@@ -961,10 +961,10 @@ namespace tools
     return amount;
   }
   //------------------------------------------------------------------------------------------------------------------------------
-  template<typename Ts, typename Tu>
+  template<typename Ts, typename Tu, typename Tk>
   bool wallet_rpc_server::fill_response(std::vector<tools::wallet2::pending_tx> &ptx_vector,
       bool get_tx_key, Ts& tx_key, Tu &amount, Tu &fee, Tu &weight, std::string &multisig_txset, std::string &unsigned_txset, bool do_not_relay,
-      Ts &tx_hash, bool get_tx_hex, Ts &tx_blob, bool get_tx_metadata, Ts &tx_metadata, epee::json_rpc::error &er)
+      Ts &tx_hash, bool get_tx_hex, Ts &tx_blob, bool get_tx_metadata, Ts &tx_metadata, Tk &spent_key_images, epee::json_rpc::error &er)
   {
     for (const auto & ptx : ptx_vector)
     {
@@ -979,6 +979,17 @@ namespace tools
       fill(amount, total_amount(ptx));
       fill(fee, ptx.fee);
       fill(weight, cryptonote::get_transaction_weight(ptx.tx));
+
+      // add spent key images
+      tools::wallet_rpc::key_image_list key_image_list;
+      bool all_are_txin_to_key = std::all_of(ptx.tx.vin.begin(), ptx.tx.vin.end(), [&](const cryptonote::txin_v& s_e) -> bool
+      {
+        CHECKED_GET_SPECIFIC_VARIANT(s_e, const cryptonote::txin_to_key, in, false);
+        key_image_list.key_images.push_back(epee::string_tools::pod_to_hex(in.k_image));
+        return true;
+      });
+      THROW_WALLET_EXCEPTION_IF(!all_are_txin_to_key, error::unexpected_txin_type, ptx.tx);
+      fill(spent_key_images, key_image_list);
     }
 
     if (m_wallet->multisig())
@@ -1065,7 +1076,7 @@ namespace tools
       }
 
       return fill_response(ptx_vector, req.get_tx_key, res.tx_key, res.amount, res.fee, res.weight, res.multisig_txset, res.unsigned_txset, req.do_not_relay,
-          res.tx_hash, req.get_tx_hex, res.tx_blob, req.get_tx_metadata, res.tx_metadata, er);
+          res.tx_hash, req.get_tx_hex, res.tx_blob, req.get_tx_metadata, res.tx_metadata, res.spent_key_images, er);
     }
     catch (const std::exception& e)
     {
@@ -1111,7 +1122,7 @@ namespace tools
       }
 
       return fill_response(ptx_vector, req.get_tx_keys, res.tx_key_list, res.amount_list, res.fee_list, res.weight_list, res.multisig_txset, res.unsigned_txset, req.do_not_relay,
-          res.tx_hash_list, req.get_tx_hex, res.tx_blob_list, req.get_tx_metadata, res.tx_metadata_list, er);
+          res.tx_hash_list, req.get_tx_hex, res.tx_blob_list, req.get_tx_metadata, res.tx_metadata_list, res.spent_key_images_list, er);
     }
     catch (const std::exception& e)
     {
@@ -1473,7 +1484,7 @@ namespace tools
       std::vector<wallet2::pending_tx> ptx_vector = m_wallet->create_unmixable_sweep_transactions();
 
       return fill_response(ptx_vector, req.get_tx_keys, res.tx_key_list, res.amount_list, res.fee_list, res.weight_list, res.multisig_txset, res.unsigned_txset, req.do_not_relay,
-          res.tx_hash_list, req.get_tx_hex, res.tx_blob_list, req.get_tx_metadata, res.tx_metadata_list, er);
+          res.tx_hash_list, req.get_tx_hex, res.tx_blob_list, req.get_tx_metadata, res.tx_metadata_list, res.spent_key_images_list, er);
     }
     catch (const std::exception& e)
     {
@@ -1531,7 +1542,7 @@ namespace tools
       std::vector<wallet2::pending_tx> ptx_vector = m_wallet->create_transactions_all(req.below_amount, dsts[0].addr, dsts[0].is_subaddress, req.outputs, mixin, req.unlock_time, priority, extra, req.account_index, subaddr_indices);
 
       return fill_response(ptx_vector, req.get_tx_keys, res.tx_key_list, res.amount_list, res.fee_list, res.weight_list, res.multisig_txset, res.unsigned_txset, req.do_not_relay,
-          res.tx_hash_list, req.get_tx_hex, res.tx_blob_list, req.get_tx_metadata, res.tx_metadata_list, er);
+          res.tx_hash_list, req.get_tx_hex, res.tx_blob_list, req.get_tx_metadata, res.tx_metadata_list, res.spent_key_images_list, er);
     }
     catch (const std::exception& e)
     {
@@ -1606,7 +1617,7 @@ namespace tools
       }
 
       return fill_response(ptx_vector, req.get_tx_key, res.tx_key, res.amount, res.fee, res.weight, res.multisig_txset, res.unsigned_txset, req.do_not_relay,
-          res.tx_hash, req.get_tx_hex, res.tx_blob, req.get_tx_metadata, res.tx_metadata, er);
+          res.tx_hash, req.get_tx_hex, res.tx_blob, req.get_tx_metadata, res.tx_metadata, res.spent_key_images, er);
     }
     catch (const std::exception& e)
     {

src/wallet/wallet_rpc_server.h

@@ -263,10 +263,10 @@ namespace tools
       bool not_open(epee::json_rpc::error& er);
       void handle_rpc_exception(const std::exception_ptr& e, epee::json_rpc::error& er, int default_error_code);
 
-      template<typename Ts, typename Tu>
+      template<typename Ts, typename Tu, typename Tk>
       bool fill_response(std::vector<tools::wallet2::pending_tx> &ptx_vector,
           bool get_tx_key, Ts& tx_key, Tu &amount, Tu &fee, Tu &weight, std::string &multisig_txset, std::string &unsigned_txset, bool do_not_relay,
-          Ts &tx_hash, bool get_tx_hex, Ts &tx_blob, bool get_tx_metadata, Ts &tx_metadata, epee::json_rpc::error &er);
+          Ts &tx_hash, bool get_tx_hex, Ts &tx_blob, bool get_tx_metadata, Ts &tx_metadata, Tk &spent_key_images, epee::json_rpc::error &er);
 
       bool validate_transfer(const std::list<wallet_rpc::transfer_destination>& destinations, const std::string& payment_id, std::vector<cryptonote::tx_destination_entry>& dsts, std::vector<uint8_t>& extra, bool at_least_one_destination, epee::json_rpc::error& er);
 

src/wallet/wallet_rpc_server_commands_defs.h

@@ -519,6 +519,15 @@ namespace wallet_rpc
     typedef epee::misc_utils::struct_init<response_t> response;
   };
 
+  struct key_image_list
+  {
+    std::list<std::string> key_images;
+
+    BEGIN_KV_SERIALIZE_MAP()
+      KV_SERIALIZE(key_images)
+    END_KV_SERIALIZE_MAP()
+  };
+
   struct COMMAND_RPC_TRANSFER
   {
     struct request_t
@@ -562,6 +571,7 @@ namespace wallet_rpc
       std::string tx_metadata;
       std::string multisig_txset;
       std::string unsigned_txset;
+      key_image_list spent_key_images;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(tx_hash)
@@ -573,6 +583,7 @@ namespace wallet_rpc
         KV_SERIALIZE(tx_metadata)
         KV_SERIALIZE(multisig_txset)
         KV_SERIALIZE(unsigned_txset)
+        KV_SERIALIZE(spent_key_images)
       END_KV_SERIALIZE_MAP()
     };
     typedef epee::misc_utils::struct_init<response_t> response;
@@ -630,6 +641,7 @@ namespace wallet_rpc
       std::list<std::string> tx_metadata_list;
       std::string multisig_txset;
       std::string unsigned_txset;
+      std::list<key_image_list> spent_key_images_list;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(tx_hash_list)
@@ -641,6 +653,7 @@ namespace wallet_rpc
         KV_SERIALIZE(tx_metadata_list)
         KV_SERIALIZE(multisig_txset)
         KV_SERIALIZE(unsigned_txset)
+        KV_SERIALIZE(spent_key_images_list)
       END_KV_SERIALIZE_MAP()
     };
     typedef epee::misc_utils::struct_init<response_t> response;
@@ -805,6 +818,7 @@ namespace wallet_rpc
       std::list<std::string> tx_metadata_list;
       std::string multisig_txset;
       std::string unsigned_txset;
+      std::list<key_image_list> spent_key_images_list;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(tx_hash_list)
@@ -816,6 +830,7 @@ namespace wallet_rpc
         KV_SERIALIZE(tx_metadata_list)
         KV_SERIALIZE(multisig_txset)
         KV_SERIALIZE(unsigned_txset)
+        KV_SERIALIZE(spent_key_images_list)
       END_KV_SERIALIZE_MAP()
     };
     typedef epee::misc_utils::struct_init<response_t> response;
@@ -879,6 +894,7 @@ namespace wallet_rpc
       std::list<std::string> tx_metadata_list;
       std::string multisig_txset;
       std::string unsigned_txset;
+      std::list<key_image_list> spent_key_images_list;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(tx_hash_list)
@@ -890,6 +906,7 @@ namespace wallet_rpc
         KV_SERIALIZE(tx_metadata_list)
         KV_SERIALIZE(multisig_txset)
         KV_SERIALIZE(unsigned_txset)
+        KV_SERIALIZE(spent_key_images_list)
       END_KV_SERIALIZE_MAP()
     };
     typedef epee::misc_utils::struct_init<response_t> response;
@@ -938,6 +955,7 @@ namespace wallet_rpc
       std::string tx_metadata;
       std::string multisig_txset;
       std::string unsigned_txset;
+      key_image_list spent_key_images;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(tx_hash)
@@ -949,6 +967,7 @@ namespace wallet_rpc
         KV_SERIALIZE(tx_metadata)
         KV_SERIALIZE(multisig_txset)
         KV_SERIALIZE(unsigned_txset)
+        KV_SERIALIZE(spent_key_images)
       END_KV_SERIALIZE_MAP()
     };
     typedef epee::misc_utils::struct_init<response_t> response;