chore: fix evernote attachment imports causing CSP issues [skip e2e]

packages/ui-services/src/Import/EvernoteConverter/EvernoteConverter.ts

@@ -7,6 +7,7 @@ import MD5 from 'crypto-js/md5'
 import Base64 from 'crypto-js/enc-base64'
 import { Converter, UploadFileFn } from '../Converter'
 import { ConversionResult } from '../ConversionResult'
+import { getBlobFromBase64 } from '../Utils'
 dayjs.extend(customParseFormat)
 dayjs.extend(utc)
 
@@ -330,8 +331,7 @@ export class EvernoteConverter implements Converter {
   }
 
   async getFileFromResource(resource: EvernoteResource): Promise<File> {
-    const response = await fetch(resource.data)
-    const blob = await response.blob()
+    const blob = getBlobFromBase64(resource.data, resource.mimeType)
     return new File([blob], resource.fileName, { type: resource.mimeType })
   }
 

packages/ui-services/src/Import/Utils.ts

@@ -11,3 +11,20 @@ export const readFileAsText = (file: File): Promise<string> => {
     reader.readAsText(file)
   })
 }
+
+export const getBlobFromBase64 = (b64Data: string, contentType = '') => {
+  const byteString = atob(b64Data.split(',')[1])
+
+  if (!contentType) {
+    contentType = b64Data.split(',')[0].split(':')[1].split(';')[0]
+  }
+
+  const buffer = new ArrayBuffer(byteString.length)
+  const view = new Uint8Array(buffer)
+  for (let i = 0; i < byteString.length; i++) {
+    view[i] = byteString.charCodeAt(i)
+  }
+
+  const blob = new Blob([buffer], { type: contentType })
+  return blob
+}