Forward CTCP version request to XMPP

src/bridge/bridge.cpp

@@ -304,3 +304,8 @@ void Bridge::send_affiliation_role_change(const Iid& iid, const std::string& tar
   std::tie(role, affiliation) = get_role_affiliation_from_irc_mode(mode);
   this->xmpp->send_affiliation_role_change(iid.chan + "%" + iid.server, target, affiliation, role, this->user_jid);
 }
+
+void Bridge::send_iq_version_request(const std::string& nick, const std::string& hostname)
+{
+  this->xmpp->send_iq_version_request(nick + "%" + hostname, this->user_jid);
+}

src/bridge/bridge.hpp

@@ -99,6 +99,10 @@ public:
    * Send a role/affiliation change, matching the change of mode for that user
    */
   void send_affiliation_role_change(const Iid& iid, const std::string& target, const char mode);
+  /**
+   * Send an iq version request coming from nick%hostname@
+   */
+  void send_iq_version_request(const std::string& nick, const std::string& hostname);
 
   /**
    * Misc

src/irc/irc_client.cpp

@@ -348,6 +348,8 @@ void IrcClient::on_channel_message(const IrcMessage& message)
       if (body.substr(1, 6) == "ACTION")
         this->bridge->send_message(iid, nick,
                   "/me"s + body.substr(7, body.size() - 8), muc);
+      else if (body.substr(1, 8) == "VERSION\01")
+        this->bridge->send_iq_version_request(nick, this->hostname);
     }
   else
     this->bridge->send_message(iid, nick, body, muc);

src/xmpp/xmpp_component.cpp

@@ -28,6 +28,9 @@
 #define XHTMLIM_NS       "http://jabber.org/protocol/xhtml-im"
 #define STANZA_NS        "urn:ietf:params:xml:ns:xmpp-stanzas"
 #define STREAMS_NS       "urn:ietf:params:xml:ns:xmpp-streams"
+#define VERSION_NS       "jabber:iq:version"
+
+using namespace std::string_literals;
 
 unsigned long XmppComponent::current_id = 0;
 
@@ -786,6 +789,22 @@ void XmppComponent::send_self_disco_info(const std::string& id, const std::strin
   this->send_stanza(iq);
 }
 
+void XmppComponent::send_iq_version_request(const std::string& from,
+                                            const std::string& jid_to)
+{
+  Stanza iq("iq");
+  iq["type"] = "get";
+  iq["id"] = "version_"s + XmppComponent::next_id();
+  iq["from"] = from + "@" + this->served_hostname;
+  iq["to"] = jid_to;
+  XmlNode query("query");
+  query["xmlns"] = VERSION_NS;
+  query.close();
+  iq.add_child(std::move(query));
+  iq.close();
+  this->send_stanza(iq);
+}
+
 std::string XmppComponent::next_id()
 {
   return std::to_string(XmppComponent::current_id++);

src/xmpp/xmpp_component.hpp

@@ -154,6 +154,11 @@ public:
    * Send a result IQ with the gateway disco informations.
    */
   void send_self_disco_info(const std::string& id, const std::string& jid_to);
+  /**
+   * Send an iq version request
+   */
+  void send_iq_version_request(const std::string& from,
+                               const std::string& jid_to);
   /**
    * Handle the various stanza types
    */