#4 - add support for sharing and viewing a page publicly without login

src/app/app-routing.module.ts

@@ -3,6 +3,7 @@ import { PreloadAllModules, RouterModule, Routes } from '@angular/router';
 import {LoginPage} from './pages/login/login.page';
 import {AuthService} from './service/auth.service';
 import {GuestOnlyGuard} from './service/guard/GuestOnly.guard';
+import {EditorGuard} from './service/guard/Editor.guard';
 
 const routes: Routes = [
   {
@@ -17,7 +18,7 @@ const routes: Routes = [
   },
   {
     path: 'editor',
-    canActivate: [AuthService],
+    canActivate: [EditorGuard],
     loadChildren: () => import('./components/components.module').then( m => m.ComponentsModule)
   },
   {

src/app/components/editor/files/files.component.html

@@ -17,6 +17,9 @@
                         </ion-item>
                     </ion-card>
                 </ion-col>
+                <ion-col>
+                    <div class="not-available" *ngIf="fileRecords.length < 1 && readonly">There are no files in this group yet.</div>
+                </ion-col>
             </ion-row>
         </ion-grid>
     </div>

src/app/components/editor/files/files.component.scss

@@ -2,11 +2,11 @@ div.files-wrapper {
   border: 2px solid #8c8c8c;
   border-radius: 3px;
   margin-top: 15px;
+}
 
-  &.not-available {
-    height: 150px;
-    text-align: center;
-    padding-top: 40px;
-    color: #494949;
-  }
+.not-available {
+  height: 150px;
+  text-align: center;
+  padding-top: 40px;
+  color: #494949;
 }

src/app/components/editor/files/files.component.ts

@@ -50,6 +50,8 @@ export class FilesComponent extends EditorNodeContract implements OnInit {
       this.node.Value = {};
     }
 
+    console.log('files load', this)
+
     if ( !this.node.Value.Value && !this.readonly ) {
       this.dbRecord = await this.api.createFileGroup(this.page.UUID, this.node.UUID);
       this.fileRecords = this.dbRecord.files;

src/app/components/nodes/file-box/file-box.component.html

@@ -22,9 +22,9 @@
                 (click)="dismiss()"
             ><i class="fa fa-times"></i></button>
         </div>
-        <ion-buttons *ngIf="!readonly" style="flex-wrap: wrap;">
-            <ion-button [disabled]="isLoading" (click)="onActionClick('folder-add')"><i class="fa fa-folder-plus"></i>&nbsp;&nbsp;Folder</ion-button>
-            <ion-button [disabled]="isLoading" (click)="onUploadFilesClick($event)"><i class="fa fa-upload"></i>&nbsp;&nbsp;Upload Files</ion-button>
+        <ion-buttons style="flex-wrap: wrap;">
+            <ion-button *ngIf="!readonly" [disabled]="isLoading" (click)="onActionClick('folder-add')"><i class="fa fa-folder-plus"></i>&nbsp;&nbsp;Folder</ion-button>
+            <ion-button *ngIf="!readonly" [disabled]="isLoading" (click)="onUploadFilesClick($event)"><i class="fa fa-upload"></i>&nbsp;&nbsp;Upload Files</ion-button>
             <ion-button [disabled]="isLoading" (click)="openFileBox()" *ngIf="!fullPage"><i class="fa fa-external-link-alt"></i>&nbsp;&nbsp;Open</ion-button>
 
             <div class="buffer"></div>
@@ -38,7 +38,7 @@
                 ></ion-input>
             </div>
 
-            <input type="file" name="fileInput" #fileInput multiple style="display: none;" (change)="onUploadFilesChange($event)">
+            <input *ngIf="!readonly" type="file" name="fileInput" #fileInput multiple style="display: none;" (change)="onUploadFilesChange($event)">
         </ion-buttons>
     </ion-toolbar>
     <div class="content-wrapper" (contextmenu)="onSurfaceContextMenu($event)">

src/app/components/nodes/markdown/markdown.component.scss

@@ -1,6 +1,6 @@
 .container {
   display: flex;
-  min-height: 600px;
+  min-height: 200px;
   flex-direction: row;
 
   .editor-container, .display {

src/app/components/sharing/selector/selector.component.html

@@ -22,9 +22,13 @@
           <ion-button fill="outline" color="medium" (click)="getShareLink('update')">
             <ion-icon name="link" color="dark"></ion-icon>&nbsp;&nbsp;Edit
           </ion-button>
-          <ion-button fill="outline" color="medium" (click)="getShareLink('manage')">
+          <ion-button fill="outline" color="medium" (click)="getShareLink('manage')" [disabled]="publicLink">
             <ion-icon name="link" color="dark"></ion-icon>&nbsp;&nbsp;Manage
           </ion-button>
+          <ion-item title="If checked, the link will never expire, and can be accessed by anyone without logging in.">
+            <ion-checkbox [(ngModel)]="publicLink"></ion-checkbox>
+            <ion-label>&nbsp;&nbsp;Public link?</ion-label>
+          </ion-item>
         </ion-buttons>
       </ion-col>
     </ion-row>
@@ -49,7 +53,7 @@
               <ion-button fill="invisible" (click)="setShareLevel(sharingInfo.view[i], 'update')">
                 <ion-icon name="create" color="medium"></ion-icon>
               </ion-button>
-              <ion-button fill="invisible" (click)="setShareLevel(sharingInfo.view[i], 'manage')">
+              <ion-button fill="invisible" (click)="setShareLevel(sharingInfo.view[i], 'manage')" *ngIf="!group.public">
                 <ion-icon name="build" color="medium"></ion-icon>
               </ion-button>
               <ion-button fill="invisible" (click)="unsharePage(sharingInfo.view[i])">
@@ -66,7 +70,7 @@
               <ion-button fill="invisible" (click)="setShareLevel(sharingInfo.update[i], 'view')">
                 <ion-icon name="eye" color="medium"></ion-icon>
               </ion-button>
-              <ion-button fill="invisible" (click)="setShareLevel(sharingInfo.update[i], 'manage')">
+              <ion-button fill="invisible" (click)="setShareLevel(sharingInfo.update[i], 'manage')" *ngIf="!group.public">
                 <ion-icon name="build" color="medium"></ion-icon>
               </ion-button>
               <ion-button fill="invisible" (click)="unsharePage(sharingInfo.update[i])">

src/app/components/sharing/selector/selector.component.ts

@@ -2,6 +2,7 @@ import {Component, Input, OnInit} from '@angular/core';
 import {ModalController} from '@ionic/angular';
 import {ApiService} from '../../../service/api.service';
 import {Observable} from 'rxjs';
+import {environment} from '../../../../environments/environment';
 
 @Component({
   selector: 'app-selector',
@@ -11,11 +12,12 @@ import {Observable} from 'rxjs';
 export class SelectorComponent implements OnInit {
   @Input() node: any;
   public sharingInfo: {
-    view: Array<{username: string, id: string, level: 'view'|'update'|'manage'}>,
-    update: Array<{username: string, id: string, level: 'view'|'update'|'manage'}>,
-    manage: Array<{username: string, id: string, level: 'view'|'update'|'manage'}>,
+    view: Array<{username: string, public?: boolean, id: string, level: 'view'|'update'|'manage'}>,
+    update: Array<{username: string, public?: boolean, id: string, level: 'view'|'update'|'manage'}>,
+    manage: Array<{username: string, public?: boolean, id: string, level: 'view'|'update'|'manage'}>,
   } = {view: [], update: [], manage: []};
   public generatedLink = '';
+  public publicLink = false;
 
   constructor(
       protected modals: ModalController,
@@ -54,7 +56,7 @@ export class SelectorComponent implements OnInit {
   }
 
   setShareLevel(group, level) {
-    this.api.post(`/share/page/${this.node.id}/share`, { user_id: group.id, level }).subscribe(result => {
+    this.api.post(`/share/page/${this.node.id}/share?public=${!!group.public}`, { user_id: group.id, level }).subscribe(result => {
       this.loadShareInfo().subscribe(data => {
         this.sharingInfo = data;
       });
@@ -62,7 +64,7 @@ export class SelectorComponent implements OnInit {
   }
 
   unsharePage(group) {
-    this.api.post(`/share/page/${this.node.id}/revoke`, { user_id: group.id }).subscribe(result => {
+    this.api.post(`/share/page/${this.node.id}/revoke?public=${!!group.public}`, { user_id: group.id }).subscribe(result => {
       this.loadShareInfo().subscribe(data => {
         this.sharingInfo = data;
       });
@@ -70,8 +72,13 @@ export class SelectorComponent implements OnInit {
   }
 
   getShareLink(level) {
-    this.api.get(`/share/page/${this.node.id}/link/${level}`).subscribe(result => {
-      this.generatedLink = result.data.link;
+    this.api.get(`/share/page/${this.node.id}/link/${level}?public=${this.publicLink}`).subscribe(result => {
+      if ( this.publicLink ) {
+        this.generatedLink = `${window.location.origin}${environment.appBase}editor;id=${this.node.id}`;
+        this.ngOnInit();
+      } else {
+        this.generatedLink = result.data.link;
+      }
     });
   }
 }

src/app/home/home.page.ts

@@ -1,6 +1,7 @@
 import {Component, OnInit} from '@angular/core';
 import {ApiService} from '../service/api.service';
 import {isDebug, debug} from '../utility';
+import {Router} from '@angular/router';
 
 @Component({
   selector: 'app-home',
@@ -10,6 +11,7 @@ import {isDebug, debug} from '../utility';
 export class HomePage implements OnInit {
   constructor(
       public readonly api: ApiService,
+      public readonly router: Router,
   ) {}
 
   ngOnInit() {
@@ -17,10 +19,10 @@ export class HomePage implements OnInit {
       if ( isDebug() ) {
         debug('Forcing authentication...');
         setTimeout(() => {
-          this.api.forceRestart();
+          this.router.navigate(['/login']);
         }, 2000);
       } else {
-        this.api.forceRestart();
+        this.router.navigate(['/login']);
       }
     }
   }

src/app/service/api.service.ts

@@ -1463,6 +1463,36 @@ export class ApiService {
     });
   }
 
+  public checkPermission(permission: string): Promise<boolean> {
+    return new Promise(async (res, rej) => {
+      if ( this.isOffline ) {
+        return rej(new ResourceNotAvailableOfflineError());
+      }
+
+      this.post('/share/check', { permission }).subscribe({
+        next: result => {
+          return res(result.data.check);
+        },
+        error: rej,
+      });
+    });
+  }
+
+  public checkPagePermission(PageId: string, level: string = 'view'): Promise<boolean> {
+    return new Promise(async (res, rej) => {
+      if ( this.isOffline ) {
+        return rej(new ResourceNotAvailableOfflineError());
+      }
+
+      this.post(`/share/check-page/${PageId}/${level}`, {}).subscribe({
+        next: result => {
+          return res(result.data.check);
+        },
+        error: rej,
+      });
+    });
+  }
+
   public attemptLogin(uid: string, password: string): Promise<{ success: boolean, message?: string }> {
     return new Promise(async (res, rej) => {
       if ( this.isOffline ) {

src/app/service/guard/Editor.guard.ts

@@ -0,0 +1,43 @@
+import {ActivatedRoute, ActivatedRouteSnapshot, CanActivate, Router, RouterStateSnapshot} from '@angular/router';
+import {ApiService} from '../api.service';
+import {NavigationService} from '../navigation.service';
+import {Injectable} from '@angular/core';
+
+@Injectable({
+    providedIn: 'root'
+})
+export class EditorGuard implements CanActivate {
+    constructor(
+        protected readonly api: ApiService,
+        protected readonly router: Router,
+        protected readonly nav: NavigationService,
+    ) { }
+
+    async canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Promise<boolean> {
+        const checkCanActivate = async () => {
+            const PageId = route.paramMap.get('id');
+
+            const canView = await this.api.checkPagePermission(String(PageId));
+
+            if ( !canView ) {
+                await this.router.navigate(['/login']);
+                return false;
+            } else {
+                return true;
+            }
+        };
+
+        return new Promise(async res => {
+            if ( !this.nav.initialized$.getValue() ) {
+                const sub = this.nav.initialized$.subscribe(async initialized => {
+                    if ( initialized ) {
+                        sub.unsubscribe();
+                        return res(await checkCanActivate());
+                    }
+                });
+            } else {
+                return res(await checkCanActivate());
+            }
+        });
+    }
+}

src/environments/environment.prod.ts

@@ -6,5 +6,6 @@ export const environment = {
   versionUrl: '/i/version.html?ngsw-bypass',
   logoUrl: '/i/assets/icon/logo_lines.svg',
   starshipUrl: '/auth/starship_oauth/login',
+  appBase: '/i/',
   outputDebug: false,
 };

src/environments/environment.ts

@@ -10,6 +10,7 @@ export const environment = {
   versionUrl: '/link_api/assets/version.html?ngsw-bypass',
   logoUrl: '/assets/icon/logo_lines.svg',
   starshipUrl: '/link_api/auth/starship_oauth/login',
+  appBase: '/',
   outputDebug: true,
 };