Add websockets channel.

Makefile.am

@@ -163,6 +163,7 @@ include_bitcoin_node_channels_HEADERS = \
     include/bitcoin/node/channels/channel_http.hpp \
     include/bitcoin/node/channels/channel_peer.hpp \
     include/bitcoin/node/channels/channel_tcp.hpp \
+    include/bitcoin/node/channels/channel_websocket.hpp \
     include/bitcoin/node/channels/channels.hpp
 
 include_bitcoin_node_chasersdir = ${includedir}/bitcoin/node/chasers

builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj

@@ -170,6 +170,7 @@
     <ClInclude Include="..\..\..\..\include\bitcoin\node\channels\channel_http.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\node\channels\channel_peer.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\node\channels\channel_tcp.hpp" />
+    <ClInclude Include="..\..\..\..\include\bitcoin\node\channels\channel_websocket.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\node\channels\channels.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\node\chase.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\node\chasers\chaser.hpp" />

builds/msvc/vs2022/libbitcoin-node/libbitcoin-node.vcxproj.filters

@@ -197,6 +197,9 @@
     <ClInclude Include="..\..\..\..\include\bitcoin\node\channels\channel_tcp.hpp">
       <Filter>include\bitcoin\node\channels</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\include\bitcoin\node\channels\channel_websocket.hpp">
+      <Filter>include\bitcoin\node\channels</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\include\bitcoin\node\channels\channels.hpp">
       <Filter>include\bitcoin\node\channels</Filter>
     </ClInclude>

include/bitcoin/node.hpp

@@ -31,6 +31,7 @@
 #include <bitcoin/node/channels/channel_http.hpp>
 #include <bitcoin/node/channels/channel_peer.hpp>
 #include <bitcoin/node/channels/channel_tcp.hpp>
+#include <bitcoin/node/channels/channel_websocket.hpp>
 #include <bitcoin/node/channels/channels.hpp>
 #include <bitcoin/node/chasers/chaser.hpp>
 #include <bitcoin/node/chasers/chaser_block.hpp>

include/bitcoin/node/channels/channel_websocket.hpp

@@ -0,0 +1,53 @@
+/**
+ * Copyright (c) 2011-2025 libbitcoin developers (see AUTHORS)
+ *
+ * This file is part of libbitcoin.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef LIBBITCOIN_NODE_CHANNELS_CHANNEL_WEBSOCKET_HPP
+#define LIBBITCOIN_NODE_CHANNELS_CHANNEL_WEBSOCKET_HPP
+
+#include <memory>
+#include <bitcoin/node/channels/channel.hpp>
+#include <bitcoin/node/configuration.hpp>
+#include <bitcoin/node/define.hpp>
+
+namespace libbitcoin {
+namespace node {
+
+/// Abstract base websocket channel state for the node.
+class BCN_API channel_websocket
+  : public network::channel_websocket,
+    public node::channel
+{
+public:
+    typedef std::shared_ptr<node::channel_websocket> ptr;
+    using options_t = network::channel_websocket::options_t;
+
+    channel_websocket(const network::logger& log,
+        const network::socket::ptr& socket,
+        const node::configuration& config, uint64_t identifier=zero,
+        const options_t& options={}) NOEXCEPT
+      : network::channel_websocket(log, socket, config.network, identifier,
+          options),
+        node::channel(log, socket, config, identifier)
+    {
+    }
+};
+
+} // namespace node
+} // namespace libbitcoin
+
+#endif

include/bitcoin/node/channels/channels.hpp

@@ -23,7 +23,7 @@
 #include <bitcoin/node/channels/channel_peer.hpp>
 #include <bitcoin/node/channels/channel_tcp.hpp>
 #include <bitcoin/node/channels/channel_http.hpp>
-// add channel_websocket to network and derive here
+#include <bitcoin/node/channels/channel_websocket.hpp>
 
 #endif
 

include/bitcoin/node/protocols/protocol_websocket.hpp

@@ -26,13 +26,18 @@
 namespace libbitcoin {
 namespace node {
 
+// TODO: maybe make this an intermediate base class for websockets.
+// TODO: and then create a distinct concrete class for deployment.
 class BCN_API protocol_websocket
   : public node::protocol_http,
     protected network::tracker<protocol_websocket>
 {
 public:
     typedef std::shared_ptr<protocol_websocket> ptr;
 
+    // Replace base class channel_t (node::channel_http). 
+    using channel_t = node::channel_websocket;
+
     protocol_websocket(const auto& session,
         const network::channel::ptr& channel,
         const options_t& options) NOEXCEPT

include/bitcoin/node/settings.hpp

@@ -136,7 +136,7 @@ class BCN_API settings
     server::settings::html_server explore{ "explore" };
 
     /// native websocket query interface (http/s->tcp/s, json, handshake)
-    network::settings::webs_server websocket{ "websocket" };
+    network::settings::websocket_server websocket{ "websocket" };
 
     /// bitcoind compat interface (http/s, stateless json-rpc-v2)
     network::settings::http_server bitcoind{ "bitcoind" };