Enforce abuse WHOIS contact for REAL registrars when adding TLDs

We do not enforce this for non-REAL registrars or in any environment other than UNITTEST or PRODUCTION. This is similar but separate to [] since we can add allowed TLDs in either location.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=239510275

java/google/registry/tools/UpdateRegistrarCommand.java

@@ -14,10 +14,13 @@
 
 package google.registry.tools;
 
+import static google.registry.util.PreconditionsUtils.checkArgumentNotNull;
 import static google.registry.util.PreconditionsUtils.checkArgumentPresent;
 
 import com.beust.jcommander.Parameters;
+import google.registry.config.RegistryEnvironment;
 import google.registry.model.registrar.Registrar;
+import javax.annotation.Nullable;
 
 /** Command to update a Registrar. */
 @Parameters(separators = " =", commandDescription = "Update registrar account(s)")
@@ -28,4 +31,22 @@ final class UpdateRegistrarCommand extends CreateOrUpdateRegistrarCommand {
     return checkArgumentPresent(
         Registrar.loadByClientId(clientId), "Registrar %s not found", clientId);
   }
+
+  @Override
+  void checkModifyAllowedTlds(@Nullable Registrar oldRegistrar) {
+    // Only allow modifying allowed TLDs if we're in a non-PRODUCTION environment, if the registrar
+    // is not REAL, or the registrar has a WHOIS abuse contact set.
+    checkArgumentNotNull(oldRegistrar, "Old registrar was not present during modification");
+
+    boolean isRealRegistrar =
+        Registrar.Type.REAL.equals(registrarType)
+            || (Registrar.Type.REAL.equals(oldRegistrar.getType()) && registrarType == null);
+    if (RegistryEnvironment.PRODUCTION.equals(RegistryEnvironment.get()) && isRealRegistrar) {
+      checkArgumentPresent(
+          oldRegistrar.getWhoisAbuseContact(),
+          "Cannot modify allowed TLDs if there is no WHOIS abuse contact set. Please use the"
+              + " \"nomulus registrar_contact\" command on this registrar to set a WHOIS abuse"
+              + " contact.");
+    }
+  }
 }