zmq: add restricted rpc mode

1 files changed, 73 insertions, 0 deletions

diff --git a/src/rpc/zmq_restricted_methods.cpp b/src/rpc/zmq_restricted_methods.cpp
new file mode 100644
index 000000000..eb58fd3d2
--- /dev/null
+++ b/src/rpc/zmq_restricted_methods.cpp
@@ -0,0 +1,73 @@
+// Copyright (c) 2016-2026, The Monero Project
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "rpc/zmq_restricted_methods.h"
+
+#include <algorithm>
+#include <array>
+
+namespace cryptonote
+{
+namespace rpc
+{
+  namespace
+  {
+    const std::array<boost::string_ref, 9> blocked_in_restricted_mode{{
+      "flush_txpool",
+      "get_peer_list",
+      "mining_status",
+      "relay_tx",
+      "save_bc",
+      "set_log_categories",
+      "set_log_level",
+      "start_mining",
+      "stop_mining"
+    }};
+  }
+
+  bool is_blocked_in_restricted_mode(const boost::string_ref method) noexcept
+  {
+    return std::binary_search(
+      blocked_in_restricted_mode.begin(),
+      blocked_in_restricted_mode.end(),
+      method
+    );
+  }
+
+  void check_blocked_methods_sorted()
+  {
+    const auto last =
+      std::is_sorted_until(blocked_in_restricted_mode.begin(), blocked_in_restricted_mode.end());
+
+    if (last != blocked_in_restricted_mode.end())
+      throw std::logic_error{
+        std::string{"ZMQ restricted-method map is not properly sorted, see "} + last->to_string()
+      };
+  }
+} // rpc
+} // cryptonote