Jidprep also handles the resource part

src/test.cpp

@@ -161,10 +161,15 @@ int main()
   assert(jid2.domain == "ツ.coucou");
   assert(jid2.resource == "coucou@coucou/coucou");
 
-  // Nodeprep
+  // Jidprep
-  const std::string& badjid("~louiz@EpiK-7D9D1FDE.poez.io");
+  const std::string& badjid("~zigougou@EpiK-7D9D1FDE.poez.io/Boujour/coucou/slt");
   const std::string correctjid = jidprep(badjid);
-  assert(correctjid == "~louiz@epik-7d9d1fde.poez.io");
+  assert(correctjid == "~zigougou@epik-7d9d1fde.poez.io/Boujour/coucou/slt");
+
+  const std::string& badjid2("Zigougou@poez.io");
+  const std::string correctjid2 = jidprep(badjid2);
+  std::cout << correctjid2 << std::endl;
+  assert(correctjid2 == "zigougou@poez.io");
 
   /**
    * Config

src/xmpp/jid.cpp

@@ -59,7 +59,22 @@ std::string jidprep(const std::string& original)
     return "";
   }
 
+  // If there is no resource, stop here
+  if (jid.resource.empty())
     return std::string(local) + "@" + domain;
+
+  // Otherwise, also process the resource part
+  char resource[max_jid_part_len] = {};
+  memcpy(resource, jid.resource.data(), jid.resource.size());
+  rc = static_cast<Stringprep_rc>(::stringprep(resource, max_jid_part_len,
+       static_cast<Stringprep_profile_flags>(0), stringprep_xmpp_resourceprep));
+  if (rc != STRINGPREP_OK)
+    {
+      log_error(error_msg + stringprep_strerror(rc));
+      return "";
+    }
+  return std::string(local) + "@" + domain + "/" + resource;
+
 #else
   (void)original;
   return "";