Expose setting auth level on outgoing connection

This is necessary to allow a remote to issue authenticated commands back
to us.

setup.py

@@ -3,7 +3,7 @@ from setuptools import setup
 # Available at setup time due to pyproject.toml
 from pybind11.setup_helpers import Pybind11Extension, build_ext
 
-__version__ = "1.0.3"
+__version__ = "1.0.4"
 
 # Note:
 #   Sort input source files if you glob sources to ensure bit-for-bit

src/oxenmq.cpp

@@ -622,28 +622,34 @@ permissions: in this example, the required permissions the access the endpoint w
                     OxenMQ::ConnectSuccess on_success,
                     OxenMQ::ConnectFailure on_failure,
                     std::chrono::milliseconds timeout,
-                    std::optional<bool> ephemeral_routing_id) {
+                    std::optional<bool> ephemeral_routing_id,
+                    AuthLevel auth_level) {
 
             return self.connect_remote(remote, std::move(on_success), std::move(on_failure), 
                     connect_option::timeout{timeout},
-                    connect_option::ephemeral_routing_id{ephemeral_routing_id.value_or(self.EPHEMERAL_ROUTING_ID)}
+                    connect_option::ephemeral_routing_id{ephemeral_routing_id.value_or(self.EPHEMERAL_ROUTING_ID)},
+                    auth_level
                     );
         },
         "remote"_a, "on_success"_a, "on_failure"_a,
         kwonly,
-        "timeout"_a = oxenmq::REMOTE_CONNECT_TIMEOUT, "ephemeral_routing_id"_a = std::nullopt,
+        "timeout"_a = oxenmq::REMOTE_CONNECT_TIMEOUT,
+        "ephemeral_routing_id"_a = std::nullopt,
+        "auth_level"_a = AuthLevel::none,
         R"(
 Starts connecting to a remote address and return immediately.  The connection can be used
 immediately, however messages will only be queued until the connection is established (or dropped if
 the connection fails).  The given callbacks are invoked for success or failure.
 
 `ephemeral_routing_id` and `timeout` allowing overriding the defaults (oxenmq.EPHEMERAL_ROUTING_ID
-and 10s, respectively).
+and 10s, respectively).  `auth_level` can be specified to set the auth level of *incoming* requests
+that arrive through this connection.
 )")
         .def("connect_remote", [](OxenMQ& self,
                     const address& remote,
                     std::chrono::milliseconds timeout,
-                    std::optional<bool> ephemeral_routing_id) {
+                    std::optional<bool> ephemeral_routing_id,
+                    AuthLevel auth_level) {
             std::promise<ConnectionID> promise;
             self.connect_remote(
                     remote,
@@ -653,10 +659,16 @@ and 10s, respectively).
                                     std::runtime_error{"Connection failed: " + std::string{reason}}));
                     },
                     oxenmq::connect_option::timeout{timeout},
-                    connect_option::ephemeral_routing_id{ephemeral_routing_id.value_or(self.EPHEMERAL_ROUTING_ID)}
+                    connect_option::ephemeral_routing_id{ephemeral_routing_id.value_or(self.EPHEMERAL_ROUTING_ID)},
+                    auth_level
                     );
             return promise.get_future().get();
-        }, "remote"_a, "timeout"_a = oxenmq::REMOTE_CONNECT_TIMEOUT, "ephemeral_routing_id"_a = std::nullopt,
+        },
+        "remote"_a,
+        "timeout"_a = oxenmq::REMOTE_CONNECT_TIMEOUT,
+        kwonly,
+        "ephemeral_routing_id"_a = std::nullopt,
+        "auth_level"_a = AuthLevel::none,
         R"(Simpler version of connect_remote that connects to a remote address synchronously.
 
 This will block until the connection is established or times out; throws on connection failure,
@@ -667,12 +679,14 @@ Takes the address and an optional `timeout` to override the timeout (default 10s
                     py::bytes pubkey,
                     std::optional<std::chrono::milliseconds> keep_alive,
                     std::optional<std::string> remote_hint,
-                    std::optional<bool> ephemeral_routing_id) {
+                    std::optional<bool> ephemeral_routing_id,
+                    AuthLevel auth_level) {
             return self.connect_sn(std::string{pubkey},
                     connect_option::keep_alive{keep_alive.value_or(-1ms)},
                     connect_option::hint{remote_hint.value_or("")},
-                    connect_option::ephemeral_routing_id{ephemeral_routing_id.value_or(self.EPHEMERAL_ROUTING_ID)});
+                    connect_option::ephemeral_routing_id{ephemeral_routing_id.value_or(self.EPHEMERAL_ROUTING_ID)},
-        }, "pubkey"_a, kwonly, "keep_alive"_a, "remote_hint"_a, "ephemeral_routing_id"_a,
+                    auth_level);
+        }, "pubkey"_a, kwonly, "keep_alive"_a, "remote_hint"_a, "ephemeral_routing_id"_a, "auth_level"_a = AuthLevel::none,
         R"(Connect to a remote service node by pubkey.
 
 Try to initiate a connection to the given SN in anticipation of needing a connection in the future.
@@ -699,6 +713,9 @@ Parameters:
 - ephemeral_routing_id - if set, override the default OxenMQ.EPHEMERAL_ROUTING_ID for this
   connection.
 
+- auth_level - specified the authentication level for incoming commands (i.e. issued *to us*) over
+  this connection.
+
 Returns a ConnectionID that identifies an connection with the given SN.  Typically you *don't* need
 to worry about saving this (and can just discard it): you can always simply pass the pubkey into
 send/request methods to send to the SN by pubkey.