daemon: allow proxy configuration

Co-authored-by: selsta <selsta@sent.at>
Co-authored-by: tobtoht <thotbot@protonmail.com>

3 files changed, 24 insertions, 2 deletions

diff --git a/src/p2p/net_node.cpp b/src/p2p/net_node.cpp
index 84cc1581e..c951db085 100644
--- a/src/p2p/net_node.cpp
+++ b/src/p2p/net_node.cpp
@@ -94,6 +94,9 @@ namespace
         case net::i2p_address::get_type_id():
             set = client->set_connect_command(remote.as<net::i2p_address>());
             break;
+        case epee::net_utils::ipv4_network_address::get_type_id():
+            set = client->set_connect_command(remote.as<epee::net_utils::ipv4_network_address>());
+            break;
         default:
             MERROR("Unsupported network address in socks_connect");
             return false;
diff --git a/src/p2p/net_node.h b/src/p2p/net_node.h
index f2888674b..9e64121be 100644
--- a/src/p2p/net_node.h
+++ b/src/p2p/net_node.h
@@ -259,6 +259,7 @@ namespace nodetool
         m_offline(false),
         is_closing(false),
         m_network_id(),
+        m_enable_dns_seed_nodes(true),
         max_connections(1)
     {}
     virtual ~node_server();
@@ -267,7 +268,7 @@ namespace nodetool
 
     bool run();
     network_zone& add_zone(epee::net_utils::zone zone);
-    bool init(const boost::program_options::variables_map& vm);
+    bool init(const boost::program_options::variables_map& vm, const std::string& proxy = {}, bool proxy_dns_leaks_allowed = {});
     bool deinit();
     bool send_stop_signal();
     uint32_t get_this_peer_port(){return m_listening_port;}
@@ -516,6 +517,7 @@ namespace nodetool
 
     epee::net_utils::ssl_support_t m_ssl_support;
 
+    bool m_enable_dns_seed_nodes;
     bool m_enable_dns_blocklist;
 
     uint32_t max_connections;
diff --git a/src/p2p/net_node.inl b/src/p2p/net_node.inl
index a0b8438b2..e2b1f3c9c 100644
--- a/src/p2p/net_node.inl
+++ b/src/p2p/net_node.inl
@@ -723,6 +723,12 @@ namespace nodetool
     {
       return get_ip_seed_nodes();
     }
+    if (!m_enable_dns_seed_nodes)
+    {
+      // TODO: a domain can be set through socks, so that the remote side does the lookup for the DNS seed nodes.
+      m_fallback_seed_nodes_added.test_and_set();
+      return get_ip_seed_nodes();
+    }
 
     std::set<std::string> full_addrs;
 
@@ -861,10 +867,21 @@ namespace nodetool
   }
   //-----------------------------------------------------------------------------------
   template<class t_payload_net_handler>
-  bool node_server<t_payload_net_handler>::init(const boost::program_options::variables_map& vm)
+  bool node_server<t_payload_net_handler>::init(const boost::program_options::variables_map& vm, const std::string& proxy, bool proxy_dns_leaks_allowed)
   {
     bool res = handle_command_line(vm);
     CHECK_AND_ASSERT_MES(res, false, "Failed to handle command line");
+    if (proxy.size())
+    {
+      const auto endpoint = net::get_tcp_endpoint(proxy);
+      CHECK_AND_ASSERT_MES(endpoint, false, "Failed to parse proxy: " << proxy << " - " << endpoint.error());
+      network_zone& public_zone = m_network_zones[epee::net_utils::zone::public_];
+      public_zone.m_connect = &socks_connect;
+      public_zone.m_proxy_address = *endpoint;
+      public_zone.m_can_pingback = false;
+      m_enable_dns_seed_nodes &= proxy_dns_leaks_allowed;
+      m_enable_dns_blocklist &= proxy_dns_leaks_allowed;
+    }
 
     if (m_nettype == cryptonote::TESTNET)
     {