Subdomain enterprise support

frontend/src/app/components/master-page/master-page.component.html

@@ -1,6 +1,9 @@
 <ng-container *ngIf="{ val: network$ | async } as network">
 <header>
   <nav class="navbar navbar-expand-md navbar-dark bg-dark">
+  <ng-template [ngIf]="subdomain">
+    <img [src]="'/api/v1/enterprise/images/' + subdomain + '/logo'" height="35" class="subdomain_logo" onload="this.style.display='block'">
+  </ng-template>
   <a class="navbar-brand" [routerLink]="['/' | relativeUrl]" style="position: relative;">
     <ng-container *ngIf="{ val: connectionState$ | async } as connectionState">
       <img *ngIf="!officialMempoolSpace" src="/resources/mempool-logo.png" height="35" width="140" class="logo" [ngStyle]="{'opacity': connectionState.val === 2 ? 1 : 0.5 }" alt="The Mempool Open Source Project logo">

frontend/src/app/components/master-page/master-page.component.scss

@@ -145,3 +145,8 @@ nav {
 .navbar-dark .navbar-nav .nav-link {
   color: #f1f1f1;
 }
+
+.subdomain_logo {
+  margin-right: 15px;
+  display: none;
+}

frontend/src/app/components/master-page/master-page.component.ts

@@ -1,7 +1,8 @@
-import { Component, OnInit } from '@angular/core';
+import { Component, Inject, OnInit } from '@angular/core';
 import { Env, StateService } from '../../services/state.service';
 import { Observable, merge, of } from 'rxjs';
 import { LanguageService } from 'src/app/services/language.service';
+import { EnterpriseService } from 'src/app/services/enterprise.service';
 
 @Component({
   selector: 'app-master-page',
@@ -16,10 +17,12 @@ export class MasterPageComponent implements OnInit {
   isMobile = window.innerWidth <= 767.98;
   officialMempoolSpace = this.stateService.env.OFFICIAL_MEMPOOL_SPACE;
   urlLanguage: string;
+  subdomain = '';
 
   constructor(
     public stateService: StateService,
     private languageService: LanguageService,
+    private enterpriseService: EnterpriseService,
   ) { }
 
   ngOnInit() {
@@ -27,6 +30,7 @@ export class MasterPageComponent implements OnInit {
     this.connectionState$ = this.stateService.connectionState$;
     this.network$ = merge(of(''), this.stateService.networkChanged$);
     this.urlLanguage = this.languageService.getLanguageForUrl();
+    this.subdomain = this.enterpriseService.getSubdomain();
   }
 
   collapse(): void {