Implemented cookies upload dialog and the ability to "enable cookies" to hopefully circumvent 429 errors

src/app/dialogs/cookies-uploader-dialog/cookies-uploader-dialog.component.html

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+<h4 mat-dialog-title i18n="Cookies uploader dialog title">Upload new cookies</h4>
+
+<mat-dialog-content>
+    <div>
+        <div class="center">
+            <ngx-file-drop [multiple]="false" accept=".txt" dropZoneLabel="Drop files here" (onFileDrop)="dropped($event)" 
+            (onFileOver)="fileOver($event)" (onFileLeave)="fileLeave($event)">
+                <ng-template ngx-file-drop-content-tmp let-openFileSelector="openFileSelector">
+                    <div>
+                        <div>
+                            <ng-container i18n="Drag and Drop">Drag and Drop</ng-container>
+                        </div>
+                        <div style="margin-top: 6px;">
+                            <button mat-stroked-button (click)="openFileSelector()">Browse Files</button>
+                        </div>
+                    </div>
+                </ng-template>
+            </ngx-file-drop>
+            <div style="margin-top: 15px;">
+                <p style="font-size: 14px;" i18n="Cookies upload warning">NOTE: Uploading new cookies will overrride your previous cookies. Also note that cookies are instance-wide, not per-user.</p>
+            </div>
+            <div style="margin-top: 10px;">
+                <table class="table">
+                    <tbody class="upload-name-style">
+                        <tr *ngFor="let item of files; let i=index">
+                            <td style="vertical-align: middle;">
+                                <strong>{{ item.relativePath }}</strong>
+                            </td>
+                            <td>
+                                <button [disabled]="uploading || uploaded" (click)="uploadFile()" style="float: right" matTooltip="Upload" mat-mini-fab><mat-icon>publish</mat-icon><mat-spinner *ngIf="uploading" class="spinner" [diameter]="38"></mat-spinner></button>
+                            </td>
+                        </tr>
+                    </tbody>
+                </table>
+            </div>
+        </div>
+    </div>
+</mat-dialog-content>
+
+<mat-dialog-actions><button style="margin-bottom: 5px;" mat-dialog-close mat-stroked-button><ng-container i18n="Close">Close</ng-container></button></mat-dialog-actions>

src/app/dialogs/cookies-uploader-dialog/cookies-uploader-dialog.component.scss

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+.spinner {
+    bottom: 1px;
+    left: 0.5px;
+    position: absolute;
+}

src/app/dialogs/cookies-uploader-dialog/cookies-uploader-dialog.component.spec.ts

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+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CookiesUploaderDialogComponent } from './cookies-uploader-dialog.component';
+
+describe('CookiesUploaderDialogComponent', () => {
+  let component: CookiesUploaderDialogComponent;
+  let fixture: ComponentFixture<CookiesUploaderDialogComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ CookiesUploaderDialogComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(CookiesUploaderDialogComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/dialogs/cookies-uploader-dialog/cookies-uploader-dialog.component.ts

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+import { Component, OnInit } from '@angular/core';
+import { NgxFileDropEntry, FileSystemFileEntry, FileSystemDirectoryEntry } from 'ngx-file-drop';
+import { PostsService } from 'app/posts.services';
+
+@Component({
+  selector: 'app-cookies-uploader-dialog',
+  templateUrl: './cookies-uploader-dialog.component.html',
+  styleUrls: ['./cookies-uploader-dialog.component.scss']
+})
+export class CookiesUploaderDialogComponent implements OnInit {
+  public files: NgxFileDropEntry[] = [];
+
+  uploading = false;
+  uploaded = false;
+
+  constructor(private postsService: PostsService) { }
+
+  ngOnInit(): void {
+
+  }
+
+  public dropped(files: NgxFileDropEntry[]) {
+    this.files = files;
+    this.uploading = false;
+    this.uploaded = false;
+  }
+
+  uploadFile() {
+    this.uploading = true;
+    for (const droppedFile of this.files) {
+      // Is it a file?
+      if (droppedFile.fileEntry.isFile) {
+        const fileEntry = droppedFile.fileEntry as FileSystemFileEntry;
+        fileEntry.file((file: File) => {
+          // You could upload it like this:
+          const formData = new FormData()
+          formData.append('cookies', file, droppedFile.relativePath);
+          this.postsService.uploadCookiesFile(formData).subscribe(res => {
+            this.uploading = false;
+            if (res['success']) {
+              this.uploaded = true;
+              this.postsService.openSnackBar('Cookies successfully uploaded!');
+            }
+          }, err => {
+            this.uploading = false;
+          });
+        });
+      }
+    }
+  }
+
+  public fileOver(event) {
+  }
+
+  public fileLeave(event) {
+  }
+}