Check for duplicate remote hosts

src/containers/AddRemoteMount/AddRemoteMount.js

@@ -9,6 +9,12 @@ import Text from '../../components/UI/Text/Text';
 import {notifyError} from '../../redux/actions/error_actions';
 import {addRemoteMount} from '../../redux/actions/mount_actions';
 
+const mapStateToProps = state => {
+  return {
+    RemoteMounts: state.mounts.RemoteMounts,
+  };
+};
+
 const mapDispatchToProps = dispatch => {
   return {
     addRemoteMount: (hostNameOrIp, port, token) => dispatch(addRemoteMount(hostNameOrIp, port, token)),
@@ -16,7 +22,7 @@ const mapDispatchToProps = dispatch => {
   }
 };
 
-export default connect(null, mapDispatchToProps)(class extends Component {
+export default connect(mapStateToProps, mapDispatchToProps)(class extends Component {
   state = {
     Display: false,
     HostNameOrIp: '',
@@ -27,6 +33,10 @@ export default connect(null, mapDispatchToProps)(class extends Component {
   addRemoteMount = () => {
     if (this.state.HostNameOrIp.length === 0) {
       this.props.notifyError('Hostname or IP cannot be empty.');
+    } else {
+      const provider = 'Remote' + this.state.HostNameOrIp + ':' + this.state.Port;
+      if (this.props.RemoteMounts.includes(provider)) {
+        this.props.notifyError('Remote host already exists');
       } else {
         this.setState({
           Display: false
@@ -39,6 +49,7 @@ export default connect(null, mapDispatchToProps)(class extends Component {
           });
         });
       }
+    }
   };
 
   createModalConditionally = (condition, jsx, critical) => {