Add out-of-bound exceptions and handle them in RPC

src/wallet/wallet2.cpp

@@ -644,8 +644,7 @@ void wallet2::add_subaddress_account(const std::string& label)
 //----------------------------------------------------------------------------------------------------
 void wallet2::add_subaddress(uint32_t index_major, const std::string& label)
 {
-  if (index_major >= m_subaddress_labels.size())
-    throw std::runtime_error("index_major is out of bound");
+  THROW_WALLET_EXCEPTION_IF(index_major >= m_subaddress_labels.size(), error::account_index_outofbound);
   uint32_t index_minor = (uint32_t)get_num_subaddresses(index_major);
   expand_subaddresses({index_major, index_minor});
   m_subaddress_labels[index_major][index_minor] = label;
@@ -701,10 +700,9 @@ std::string wallet2::get_subaddress_label(const cryptonote::subaddress_index& in
 //----------------------------------------------------------------------------------------------------
 void wallet2::set_subaddress_label(const cryptonote::subaddress_index& index, const std::string &label)
 {
-  if (index.major >= m_subaddress_labels.size() || index.minor >= m_subaddress_labels[index.major].size())
-    MERROR("Subaddress index is out of bounds. Failed to set subaddress label.");
-  else
-    m_subaddress_labels[index.major][index.minor] = label;
+  THROW_WALLET_EXCEPTION_IF(index.major >= m_subaddress_labels.size(), error::account_index_outofbound);
+  THROW_WALLET_EXCEPTION_IF(index.minor >= m_subaddress_labels[index.major].size(), error::address_index_outofbound);
+  m_subaddress_labels[index.major][index.minor] = label;
 }
 //----------------------------------------------------------------------------------------------------
 /*!

src/wallet/wallet_errors.h

@@ -269,6 +269,28 @@ namespace tools
       }
     };
     //----------------------------------------------------------------------------------------------------
+    struct index_outofbound : public wallet_logic_error
+    {
+      explicit index_outofbound(std::string&& loc, const std::string& message)
+        : wallet_logic_error(std::move(loc), message)
+      {
+      }
+    };
+    struct account_index_outofbound : public index_outofbound
+    {
+      explicit account_index_outofbound(std::string&& loc)
+        : index_outofbound(std::move(loc), "account index is out of bound")
+      {
+      }
+    };
+    struct address_index_outofbound: public index_outofbound
+    {
+      explicit address_index_outofbound(std::string&& loc)
+        : index_outofbound(std::move(loc), "address index is out of bound")
+      {
+      }
+    };
+    //----------------------------------------------------------------------------------------------------
     struct acc_outs_lookup_error : public refresh_error
     {
       explicit acc_outs_lookup_error(std::string&& loc, const cryptonote::transaction& tx,

src/wallet/wallet_rpc_server.cpp

@@ -376,27 +376,23 @@ namespace tools
   bool wallet_rpc_server::on_create_address(const wallet_rpc::COMMAND_RPC_CREATE_ADDRESS::request& req, wallet_rpc::COMMAND_RPC_CREATE_ADDRESS::response& res, epee::json_rpc::error& er)
   {
     if (!m_wallet) return not_open(er);
-    m_wallet->add_subaddress(req.account_index, req.label);
-    res.address_index = m_wallet->get_num_subaddresses(req.account_index) - 1;
-    res.address = m_wallet->get_subaddress_as_str({req.account_index, res.address_index});
+    try
+    {
+      m_wallet->add_subaddress(req.account_index, req.label);
+      res.address_index = m_wallet->get_num_subaddresses(req.account_index) - 1;
+      res.address = m_wallet->get_subaddress_as_str({req.account_index, res.address_index});
+    }
+    catch (const std::exception& e)
+    {
+      handle_rpc_exception(std::current_exception(), er, WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR);
+      return false;
+    }
     return true;
   }
   //------------------------------------------------------------------------------------------------------------------------------
   bool wallet_rpc_server::on_label_address(const wallet_rpc::COMMAND_RPC_LABEL_ADDRESS::request& req, wallet_rpc::COMMAND_RPC_LABEL_ADDRESS::response& res, epee::json_rpc::error& er)
   {
     if (!m_wallet) return not_open(er);
-    if (req.index.major >= m_wallet->get_num_subaddress_accounts())
-    {
-      er.code = WALLET_RPC_ERROR_CODE_ACCOUNT_INDEX_OUTOFBOUND;
-      er.message = "Account index is out of bound";
-      return false;
-    }
-    if (req.index.minor >= m_wallet->get_num_subaddresses(req.index.major))
-    {
-      er.code = WALLET_RPC_ERROR_CODE_ADDRESS_INDEX_OUTOFBOUND;
-      er.message = "Address index is out of bound";
-      return false;
-    }
     try
     {
       m_wallet->set_subaddress_label(req.index, req.label);
@@ -458,12 +454,6 @@ namespace tools
   bool wallet_rpc_server::on_label_account(const wallet_rpc::COMMAND_RPC_LABEL_ACCOUNT::request& req, wallet_rpc::COMMAND_RPC_LABEL_ACCOUNT::response& res, epee::json_rpc::error& er)
   {
     if (!m_wallet) return not_open(er);
-    if (req.account_index >= m_wallet->get_num_subaddress_accounts())
-    {
-      er.code = WALLET_RPC_ERROR_CODE_ACCOUNT_INDEX_OUTOFBOUND;
-      er.message = "Account index is out of bound";
-      return false;
-    }
     try
     {
       m_wallet->set_subaddress_label({req.account_index, 0}, req.label);
@@ -2041,6 +2031,16 @@ namespace tools
       er.code = WALLET_RPC_ERROR_CODE_INVALID_PASSWORD;
       er.message = "Invalid password.";
     }
+    catch (const error::account_index_outofbound& e)
+    {
+      er.code = WALLET_RPC_ERROR_CODE_ACCOUNT_INDEX_OUTOFBOUND;
+      er.message = e.what();
+    }
+    catch (const error::address_index_outofbound& e)
+    {
+      er.code = WALLET_RPC_ERROR_CODE_ADDRESS_INDEX_OUTOFBOUND;
+      er.message = e.what();
+    }
     catch (const std::exception& e)
     {
       er.code = default_error_code;