(ws) ws echo_server gains a new option (-p) to disable responding to pings with pongs

docs/CHANGELOG.md

@@ -4,6 +4,7 @@ All changes to this project will be documented in this file.
 ## [8.2.7] - 2020-03-17
 
 (ws) ws connect gains a new option to set the interval at which to send pings
+(ws) ws echo_server gains a new option (-p) to disable responding to pings with pongs
 
 ```
 IXWebSocket$ ws connect --ping_interval 2 wss://echo.websocket.org

ixwebsocket/IXWebSocketVersion.h

@@ -6,4 +6,4 @@
 
 #pragma once
 
-#define IX_WEBSOCKET_VERSION "8.2.6"
+#define IX_WEBSOCKET_VERSION "8.2.7"

ws/ws.cpp

@@ -187,6 +187,7 @@ int main(int argc, char** argv)
     echoServerApp->add_flag("-g", greetings, "Verbose");
     echoServerApp->add_flag("-6", ipv6, "IpV6");
     echoServerApp->add_flag("-x", disablePerMessageDeflate, "Disable per message deflate");
+    echoServerApp->add_flag("-p", disablePong, "Disable sending PONG in response to PING");
     addTLSOptions(echoServerApp);
 
     CLI::App* broadcastServerApp = app.add_subcommand("broadcast_server", "Broadcasting server");
@@ -403,7 +404,7 @@ int main(int argc, char** argv)
     else if (app.got_subcommand("echo_server"))
     {
         ret = ix::ws_echo_server_main(
-            port, greetings, hostname, tlsOptions, ipv6, disablePerMessageDeflate);
+            port, greetings, hostname, tlsOptions, ipv6, disablePerMessageDeflate, disablePong);
     }
     else if (app.got_subcommand("broadcast_server"))
     {

ws/ws.h

@@ -32,7 +32,8 @@ namespace ix
                             const std::string& hostname,
                             const ix::SocketTLSOptions& tlsOptions,
                             bool ipv6,
-                            bool disablePerMessageDeflate);
+                            bool disablePerMessageDeflate,
+                            bool disablePong);
 
     int ws_broadcast_server_main(int port,
                                  const std::string& hostname,

ws/ws_echo_server.cpp

@@ -16,7 +16,8 @@ namespace ix
                             const std::string& hostname,
                             const ix::SocketTLSOptions& tlsOptions,
                             bool ipv6,
-                            bool disablePerMessageDeflate)
+                            bool disablePerMessageDeflate,
+                            bool disablePong)
     {
         spdlog::info("Listening on {}:{}", hostname, port);
 
@@ -35,6 +36,12 @@ namespace ix
             server.disablePerMessageDeflate();
         }
 
+        if (disablePong)
+        {
+            spdlog::info("Disable responding to PING messages with PONG");
+            server.disablePong();
+        }
+
         server.setOnConnectionCallback(
             [greetings](std::shared_ptr<ix::WebSocket> webSocket,
                         std::shared_ptr<ConnectionState> connectionState) {