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Switch to Sharp for EXIF removal

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This commit is contained in:
Sam Becker 2024-06-07 12:32:40 -05:00
parent f74ef19180
commit 45689acb26
3 changed files with 31 additions and 17 deletions
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12
src/photo/server.ts
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@ -133,3 +133,15 @@ export const blurImageFromUrl = async (url: string) =>
fetch(decodeURIComponent(url))
.then(res => res.arrayBuffer())
.then(buffer => blurImage(buffer));
export const removeGpsData = async (image: ArrayBuffer) =>
generateBase64(image, sharp => sharp
.withExifMerge({
IFD3: {
GPSLatitudeRef: '',
GPSLatitude: '',
GPSLongitudeRef: '',
GPSLongitude: '',
},
})
);

2
src/photo/storage.ts
View File

@ -18,7 +18,7 @@ export const convertUploadToPhoto = async (
console.log('Fetching original file');
const fileBytes = await fetch(urlOrigin, { cache: 'no-store' })
.then(res => res.arrayBuffer());
const fileWithoutGps = stripGpsFromFile(fileBytes);
const fileWithoutGps = await stripGpsFromFile(fileBytes);
console.log('Uploading file without GPS');
return putFile(fileWithoutGps, photoPath).then(async url => {
if (url) {

34
src/utility/exif-server.ts
View File

@ -1,24 +1,26 @@
import * as PiExif from 'piexifjs';
// import * as PiExif from 'piexifjs';
import { b64toBlob } from './data';
import { removeGpsData } from '@/photo/server';
export const stripGpsFromFile = (
export const stripGpsFromFile = async (
fileBytes: ArrayBuffer
): Blob => {
const base64 = Buffer.from(fileBytes).toString('base64');
const base64Url = `data:image/jpeg;base64,${base64}`;
): Promise<Blob> => {
// const base64 = Buffer.from(fileBytes).toString('base64');
// const base64Url = `data:image/jpeg;base64,${base64}`;
console.log('Stripping GPS from file');
const exifObject = PiExif.load(base64Url);
delete exifObject.GPS;
const exifDataWithoutGps = PiExif.dump(exifObject);
// console.log('Stripping GPS from file');
// const exifObject = PiExif.load(base64Url);
// delete exifObject.GPS;
// const exifDataWithoutGps = PiExif.dump(exifObject);
console.log('Updating EXIF');
const data = PiExif.insert(
exifDataWithoutGps,
base64Url,
);
// console.log('Updating EXIF');
// const data = PiExif.insert(
// exifDataWithoutGps,
// base64Url,
// );
console.log('EXIF updated');
// console.log('EXIF updated');
return b64toBlob(data);
// Removing EXIF data with Sharp
return b64toBlob(await removeGpsData(fileBytes));
};