Return a proper iq when the IRC server responds to our kick

A result or an error, depending on the type of message

src/bridge/bridge.cpp

@@ -216,11 +216,49 @@ void Bridge::send_irc_nick_change(const Iid& iid, const std::string& new_nick)
     irc->send_nick_command(new_nick);
 }
 
-void Bridge::send_irc_kick(const Iid& iid, const std::string& target, const std::string& reason)
+void Bridge::send_irc_kick(const Iid& iid, const std::string& target, const std::string& reason,
+                           const std::string& iq_id, const std::string& to_jid)
 {
   IrcClient* irc = this->get_irc_client(iid.get_server());
   if (irc)
-    irc->send_kick_command(iid.get_local(), target, reason);
+    {
+      irc->send_kick_command(iid.get_local(), target, reason);
+      this->add_waiting_iq([this, target, iq_id, to_jid, iid](const std::string& irc_hostname, const IrcMessage& message){
+          if (irc_hostname != iid.get_server())
+            return false;
+          if (message.command == "KICK" && message.arguments.size() >= 2)
+            {
+              const std::string target_later = message.arguments[1];
+              const std::string chan_name_later = utils::tolower(message.arguments[0]);
+              if (target_later != target || chan_name_later != iid.get_local())
+                return false;
+              this->xmpp->send_iq_result(iq_id, to_jid, std::to_string(iid));
+            }
+          else if (message.command == "401" && message.arguments.size() >= 2)
+            {
+              const std::string target_later = message.arguments[1];
+              if (target_later != target)
+                return false;
+              std::string error_message = "No such nick";
+              if (message.arguments.size() >= 3)
+                error_message = message.arguments[2];
+              this->xmpp->send_stanza_error("iq", to_jid, std::to_string(iid), iq_id, "cancel", "item-not-found",
+                                            error_message, false);
+            }
+          else if (message.command == "482" && message.arguments.size() >= 2)
+            {
+              const std::string chan_name_later = utils::tolower(message.arguments[1]);
+              if (chan_name_later != iid.get_local())
+                return false;
+              std::string error_message = "You're not channel operator";
+              if (message.arguments.size() >= 3)
+                error_message = message.arguments[2];
+              this->xmpp->send_stanza_error("iq", to_jid, std::to_string(iid), iq_id, "cancel", "not-allowed",
+                                            error_message, false);
+            }
+          return true;
+        });
+    }
 }
 
 void Bridge::set_channel_topic(const Iid& iid, const std::string& subject)

src/bridge/bridge.hpp

@@ -1,6 +1,7 @@
 #ifndef BRIDGE_INCLUDED
 # define BRIDGE_INCLUDED
 
+#include <irc/irc_message.hpp>
 #include <irc/irc_client.hpp>
 #include <bridge/colors.hpp>
 #include <irc/irc_user.hpp>
@@ -62,7 +63,8 @@ public:
   void send_private_message(const Iid& iid, const std::string& body, const std::string& type="PRIVMSG");
   void leave_irc_channel(Iid&& iid, std::string&& status_message);
   void send_irc_nick_change(const Iid& iid, const std::string& new_nick);
-  void send_irc_kick(const Iid& iid, const std::string& target, const std::string& reason);
+  void send_irc_kick(const Iid& iid, const std::string& target, const std::string& reason,
+                     const std::string& iq_id, const std::string& to_jid);
   void set_channel_topic(const Iid& iid, const std::string& subject);
   void send_xmpp_version_to_irc(const Iid& iid, const std::string& name, const std::string& version, const std::string& os);