Provide the “realname_customization” option

ref #3136

doc/biboumi.1.md

@@ -77,6 +77,12 @@ The configuration file uses a simple format of the form
   users join their own IRC server using an XMPP client, while forbidding
   access to any other IRC server.
 
+`realname_customization`
+
+ If this option is set to “false” (default is “true”), the users will not be
+ able to use the ad-hoc commands that lets them configure their realname and
+ username.
+
 `log_file`
 
   A filename into which logs are written.  If none is provided, the logs are

src/irc/irc_client.cpp

@@ -6,6 +6,7 @@
 #include <irc/irc_user.hpp>
 
 #include <logger/logger.hpp>
+#include <config/config.hpp>
 #include <utils/tolower.hpp>
 #include <utils/split.hpp>
 
@@ -120,11 +121,14 @@ void IrcClient::on_connected()
   this->send_nick_command(this->username);
 
 #ifdef USE_DATABASE
+  if (Config::get("realname_customization", "true") == "true")
+    {
       if (!options.username.value().empty())
         this->username = options.username.value();
       if (!options.realname.value().empty())
         this->realname = options.realname.value();
       this->send_user_command(username, realname);
+    }
 #endif
   this->send_user_command(this->username, this->realname);
 

src/xmpp/biboumi_adhoc_commands.cpp

@@ -1,6 +1,7 @@
 #include <xmpp/biboumi_adhoc_commands.hpp>
 #include <xmpp/biboumi_component.hpp>
 #include <bridge/bridge.hpp>
+#include <config/config.hpp>
 #include <utils/string.hpp>
 #include <utils/split.hpp>
 #include <xmpp/jid.hpp>
@@ -191,6 +192,8 @@ void ConfigureIrcServerStep1(XmppComponent*, AdhocSession& session, XmlNode& com
   after_cnt_cmd.add_child(required);
   x.add_child(std::move(after_cnt_cmd));
 
+  if (Config::get("realname_customization", "true") == "true")
+    {
       XmlNode username("field");
       username["var"] = "username";
       username["type"] = "text-single";
@@ -216,6 +219,7 @@ void ConfigureIrcServerStep1(XmppComponent*, AdhocSession& session, XmlNode& com
         }
       realname.add_child(required);
       x.add_child(std::move(realname));
+    }
 
   command_node.add_child(std::move(x));
 }