From 9c1f970b82950ad0022c54f37d68bca3ef1392fd Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Fri, 17 Jan 2020 22:09:39 +0000
Subject: wallet2: remember daemon address overrides when loading a new wallet

---
 src/wallet/wallet2.cpp | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

(limited to 'src/wallet/wallet2.cpp')

diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 4d2ec5103..cc5e050ea 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -149,6 +149,9 @@ static const std::string MULTISIG_EXTRA_INFO_MAGIC = "MultisigxV1";
 
 static const std::string ASCII_OUTPUT_MAGIC = "MoneroAsciiDataV1";
 
+boost::mutex tools::wallet2::default_daemon_address_lock;
+std::string tools::wallet2::default_daemon_address = "";
+
 namespace
 {
   std::string get_default_ringdb_path()
@@ -412,6 +415,15 @@ std::unique_ptr<tools::wallet2> make_basic(const boost::program_options::variabl
     daemon_port = get_config(nettype).RPC_DEFAULT_PORT;
   }
 
+  // if no daemon settings are given and we have a previous one, reuse that one
+  if (command_line::is_arg_defaulted(vm, opts.daemon_host) && command_line::is_arg_defaulted(vm, opts.daemon_port) && command_line::is_arg_defaulted(vm, opts.daemon_address))
+  {
+    // not a bug: taking a const ref to a temporary in this way is actually ok in a recent C++ standard
+    const std::string &def = tools::wallet2::get_default_daemon_address();
+    if (!def.empty())
+      daemon_address = def;
+  }
+
   if (daemon_address.empty())
     daemon_address = std::string("http://") + daemon_host + ":" + std::to_string(daemon_port);
 
@@ -1312,8 +1324,15 @@ bool wallet2::set_daemon(std::string daemon_address, boost::optional<epee::net_u
     m_node_rpc_proxy.invalidate();
   }
 
-  MINFO("setting daemon to " << get_daemon_address());
-  return m_http_client.set_server(get_daemon_address(), get_daemon_login(), std::move(ssl_options));
+  const std::string address = get_daemon_address();
+  MINFO("setting daemon to " << address);
+  bool ret =  m_http_client.set_server(address, get_daemon_login(), std::move(ssl_options));
+  if (ret)
+  {
+    CRITICAL_REGION_LOCAL(default_daemon_address_lock);
+    default_daemon_address = address;
+  }
+  return ret;
 }
 //----------------------------------------------------------------------------------------------------
 bool wallet2::init(std::string daemon_address, boost::optional<epee::net_utils::http::login> daemon_login, boost::asio::ip::tcp::endpoint proxy, uint64_t upper_transaction_weight_limit, bool trusted_daemon, epee::net_utils::ssl_options_t ssl_options)
-- 
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