fix(swarm): fixed issue parsing url with no scheme [EE-4017] (#7502)

app/react/portainer/environments/wizard/EnvironmentsCreationView/shared/AgentForm/AgentForm.validation.tsx

@@ -9,8 +9,42 @@ import { nameValidation } from '../NameField';
 export function validation(): SchemaOf<CreateAgentEnvironmentValues> {
   return object({
     name: nameValidation(),
-    environmentUrl: string().required('This field is required.'),
+    environmentUrl: environmentValidation(),
     meta: metadataValidation(),
     gpus: gpusListValidation(),
   });
 }
+
+function environmentValidation() {
+  return string()
+    .required('This field is required')
+    .test(
+      'address',
+      'Environment address must be of the form <IP>:<PORT> or <HOST>:<PORT>.',
+      (environmentUrl) => validateAddress(environmentUrl)
+    );
+}
+
+export function validateAddress(address: string | undefined) {
+  if (typeof address === 'undefined') {
+    return false;
+  }
+
+  if (address.indexOf('://') > -1) {
+    return false;
+  }
+
+  const [host, port] = address.split(':');
+
+  if (
+    host.length === 0 ||
+    Number.isNaN(parseInt(port, 10)) ||
+    port.match(/^[0-9]+$/) == null ||
+    parseInt(port, 10) < 1 ||
+    parseInt(port, 10) > 65535
+  ) {
+    return false;
+  }
+
+  return true;
+}

app/react/portainer/environments/wizard/EnvironmentsCreationView/shared/AgentForm/EnvironmentUrlField.tsx

@@ -12,7 +12,7 @@ export function EnvironmentUrlField() {
       errors={meta.error}
       required
       inputId="environment-url-field"
-      tooltip="A host:port combination. The host can be either an IP address or a host name."
+      tooltip="<HOST>:<PORT> or <IP>:<PORT>"
     >
       <Field
         id="environment-url-field"