fix: always use the same token

src/app/elements/iframe/iframe.component.ts

@@ -2,7 +2,7 @@ import {Component, Input, OnInit} from '@angular/core';
 import {DomSanitizer} from '@angular/platform-browser';
 import {NavList} from '../../ControlPage/control/control.component';
 
-import {User} from '../../globals';
+import {User, guacamole_token} from '../../globals';
 import {HttpService, LogService} from '../../app.service';
 
 @Component({
@@ -23,18 +23,23 @@ export class ElementIframeComponent implements OnInit {
 
   ngOnInit() {
     // /guacamole/api/tokens will redirect to http://guacamole/api/tokens
+    const base = window.btoa(this.host.hostname + '\0' + 'c' + '\0' + 'jumpserver');
+    if (guacamole_token.length > 0) {
+      this.target = document.location.origin + '/guacamole/#/client/' + base + '?token=' + guacamole_token;
+    } else {
       this._http.get_guacamole_token(User.name, this.host.id, this.userid).subscribe(
         data => {
-        const base = window.btoa(this.host.hostname + '\0' + 'c' + '\0' + 'jumpserver');
           // /guacamole/client will redirect to http://guacamole/#/client
           this.target = document.location.origin +
             '/guacamole/#/client/' + base + '?token=' + data['authToken'];
+          guacamole_token = data['authToken'];
         },
         error2 => {
           this._logger.error(error2);
         }
       );
     }
+  }
 
   trust(url) {
     return this.sanitizer.bypassSecurityTrustResourceUrl(url);

src/app/globals.ts

@@ -147,3 +147,4 @@ export let wsEvent: {
 
 export const i18n = new Map();
 
+export let guacamole_token = '';