add file chuck upload, file validation, redirect to home page incase route doesnt exist and refresh token interceptor

src/app/services/file/file-loader.service.ts

@@ -25,7 +25,7 @@ export class FileLoaderService {
     // input.onchange = () => {
     //   // you can use this method to get file and perform respective operations
     //   let files =   Array.from(input.files);
-    //   
+    //
     // };
 
 

src/app/services/file/file-validator.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { FileValidatorService } from './file-validator.service';
+
+describe('FileValidatorService', () => {
+  let service: FileValidatorService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(FileValidatorService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

src/app/services/file/file-validator.service.ts

@@ -0,0 +1,173 @@
+import { Injectable } from '@angular/core';
+import { Either, error, ok} from "src/app/services/Either"
+import * as Sentry from '@sentry/capacitor';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class FileValidatorService {
+
+  forbiddenExtensions = [
+    ".exe",
+    ".bat",
+    ".sh",
+    ".jar",
+    ".js",
+    ".vbs",
+    ".ps1",
+    ".ini",
+    ".config",
+    ".zip",
+    ".rar",
+    ".tar.gz",
+    ".7z",
+    ".cab",
+    ".sql",
+    ".bak",
+    ".htaccess",
+    ".htpasswd",
+    ".scr",
+    ".pif",
+    ".com",
+    ".msi",
+    ".dll",
+    ".sys",
+    ".ini",
+    ".docm",
+    ".xlsm",
+    ".pptm",
+    ".rtf",
+    ".so",
+    ".dylib",
+    ".dat",
+    ".log",
+    ".conf",
+    ".php",
+    ".py",
+    ".rb",
+  ];
+
+  constructor() { }
+
+  private base64ToBlob(base64) {
+    const binaryData = atob(base64);
+    const arrayBuffer = new ArrayBuffer(binaryData.length);
+    const view = new Uint8Array(arrayBuffer);
+    for (let i = 0; i < binaryData.length; i++) {
+      view[i] = binaryData.charCodeAt(i);
+    }
+    return new Blob([arrayBuffer], { type: 'video/mp4' }); // Adjust the type as per your video format
+  }
+
+  ValidateImage(base64Image: string): Promise<Either<true, Event>>  {
+    const imageDiv: HTMLImageElement = document.createElement("img")
+
+    return new Promise((resolve, reject) => {
+      imageDiv.onload = () => {
+        resolve(ok(true))
+      }
+
+      imageDiv.onerror = (e: Event) => {
+        resolve(error(e))
+        Sentry.captureMessage('FileValidatorService invalid image content');
+      }
+
+      imageDiv.src = base64Image
+    })
+  }
+
+  ValidateVideoFromBase64Data(base64Data: string) : Promise<Either<true, false>> {
+    const blob = this.base64ToBlob(base64Data);
+
+    return new Promise((resolve, reject) => {
+
+      const videoElement = document.createElement('video');
+      videoElement.src = URL.createObjectURL(blob);
+
+      // Add event listeners to handle video load and error
+      videoElement.addEventListener('loadeddata',  () => {
+        resolve(ok(true))
+        // You can also perform additional validation checks here if needed.
+      });
+
+      videoElement.addEventListener('error', () => {
+        resolve(ok(true))
+        Sentry.captureMessage('FileValidatorService invalid video content');
+      });
+    })
+
+  }
+
+  ValidateVideoFromBlob(blob: Blob) : Promise<Either<true, false>> {
+
+    return new Promise((resolve, reject) => {
+
+      const videoElement = document.createElement('video');
+      videoElement.src = URL.createObjectURL(blob);
+
+      // Add event listeners to handle video load and error
+      videoElement.addEventListener('loadeddata',  () => {
+        resolve(ok(true))
+        // You can also perform additional validation checks here if needed.
+      });
+
+      videoElement.addEventListener('error', () => {
+        resolve(ok(true))
+        Sentry.captureMessage('FileValidatorService invalid video content');
+      });
+    })
+
+  }
+
+
+  validateAudioFromBlob(blob: Blob): Promise<Either<true, false>> {
+
+    return new Promise((resolve, reject) => {
+
+      const audioElement = new Audio();
+
+
+      // Add event listeners to handle audio load and error
+      audioElement.addEventListener('canplaythrough',  () => {
+        console.log('Valid audio');
+        resolve(ok(true))
+        // You can also perform additional validation checks here if needed.
+      });
+
+      audioElement.addEventListener('error', () => {
+        console.log('Invalid audio');
+        resolve(error(false))
+      });
+
+
+      audioElement.src = URL.createObjectURL(blob);
+    })
+
+  }
+
+  hasDuplicateExtension(filename): Either<true, false> {
+    // Use a regular expression to match multiple consecutive dots
+    const duplicateExtensionRegex = /\.\.+/;
+    const a = duplicateExtensionRegex.test(filename);
+    if(a) {
+      return ok(true)
+    } else {
+      Sentry.captureMessage('FileValidatorService invalid filename '+ filename);
+      return error(false)
+    }
+  }
+
+
+  fileNameValidation(fileName): Either<true, false> {
+    const fileExtension = fileName.slice(((fileName.lastIndexOf(".") - 1) >>> 0) + 2);
+
+    const found = this.forbiddenExtensions.includes(`.${fileExtension.toLowerCase()}`);
+
+    if(found) {
+      return error(false)
+    } else {
+      return ok(true)
+    }
+  }
+
+}