added removal of metadata

includes all posted assets

package-lock.json

@@ -14,6 +14,7 @@
 				"btoa": "^1.2.1",
 				"cheerio": "^1.0.0-rc.5",
 				"dotenv": "^10.0.0",
+				"exif-be-gone": "^1.2.0",
 				"express": "^4.17.1",
 				"express-async-errors": "^3.1.1",
 				"file-type": "^16.5.0",
@@ -90,6 +91,11 @@
 				"@types/node": "*"
 			}
 		},
+		"node_modules/@types/chai": {
+			"version": "4.2.21",
+			"resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.21.tgz",
+			"integrity": "sha512-yd+9qKmJxm496BOV9CMNaey8TWsikaZOwMRwPHQIjcOJM9oV+fi9ZMNw3JsVnbEEbo2gRTDnGEBv8pjyn67hNg=="
+		},
 		"node_modules/@types/connect": {
 			"version": "3.4.34",
 			"resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.34.tgz",
@@ -160,6 +166,11 @@
 			"integrity": "sha512-YATxVxgRqNH6nHEIsvg6k2Boc1JHI9ZbH5iWFFv/MTkchz3b1ieGDa5T0a9RznNdI0KhVbdbWSN+KWWrQZRxTw==",
 			"dev": true
 		},
+		"node_modules/@types/mocha": {
+			"version": "8.2.3",
+			"resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-8.2.3.tgz",
+			"integrity": "sha512-ekGvFhFgrc2zYQoX4JeZPmVzZxw6Dtllga7iGHzfbYIYkAMUx/sAFP2GdFpLff+vdHXu5fl7WX9AT+TtqYcsyw=="
+		},
 		"node_modules/@types/mongodb": {
 			"version": "3.6.17",
 			"resolved": "https://registry.npmjs.org/@types/mongodb/-/mongodb-3.6.17.tgz",
@@ -249,6 +260,14 @@
 				"@types/node": "*"
 			}
 		},
+		"node_modules/@types/stream-buffers": {
+			"version": "3.0.4",
+			"resolved": "https://registry.npmjs.org/@types/stream-buffers/-/stream-buffers-3.0.4.tgz",
+			"integrity": "sha512-qU/K1tb2yUdhXkLIATzsIPwbtX6BpZk0l3dPW6xqWyhfzzM1ECaQ/8faEnu3CNraLiQ9LHyQQPBGp7N9Fbs25w==",
+			"dependencies": {
+				"@types/node": "*"
+			}
+		},
 		"node_modules/@types/uuid": {
 			"version": "8.3.0",
 			"resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-8.3.0.tgz",
@@ -770,6 +789,20 @@
 				"node": ">= 0.6"
 			}
 		},
+		"node_modules/exif-be-gone": {
+			"version": "1.2.0",
+			"resolved": "https://registry.npmjs.org/exif-be-gone/-/exif-be-gone-1.2.0.tgz",
+			"integrity": "sha512-FIfhEo2jJwXX94iLIONdxm2koKKarpwN6E8wMk8nfgTjRFZySMZRoWzWUvUEaTK+L6iAOzHpSNv4mgdL1JlLdQ==",
+			"dependencies": {
+				"@types/chai": "^4.2.12",
+				"@types/mocha": "^8.0.2",
+				"@types/node": "^14.0.27",
+				"@types/stream-buffers": "^3.0.3"
+			},
+			"bin": {
+				"exif-be-gone": "cli.js"
+			}
+		},
 		"node_modules/express": {
 			"version": "4.17.1",
 			"resolved": "https://registry.npmjs.org/express/-/express-4.17.1.tgz",
@@ -1962,6 +1995,11 @@
 				"@types/node": "*"
 			}
 		},
+		"@types/chai": {
+			"version": "4.2.21",
+			"resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.21.tgz",
+			"integrity": "sha512-yd+9qKmJxm496BOV9CMNaey8TWsikaZOwMRwPHQIjcOJM9oV+fi9ZMNw3JsVnbEEbo2gRTDnGEBv8pjyn67hNg=="
+		},
 		"@types/connect": {
 			"version": "3.4.34",
 			"resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.34.tgz",
@@ -2031,6 +2069,11 @@
 			"integrity": "sha512-YATxVxgRqNH6nHEIsvg6k2Boc1JHI9ZbH5iWFFv/MTkchz3b1ieGDa5T0a9RznNdI0KhVbdbWSN+KWWrQZRxTw==",
 			"dev": true
 		},
+		"@types/mocha": {
+			"version": "8.2.3",
+			"resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-8.2.3.tgz",
+			"integrity": "sha512-ekGvFhFgrc2zYQoX4JeZPmVzZxw6Dtllga7iGHzfbYIYkAMUx/sAFP2GdFpLff+vdHXu5fl7WX9AT+TtqYcsyw=="
+		},
 		"@types/mongodb": {
 			"version": "3.6.17",
 			"resolved": "https://registry.npmjs.org/@types/mongodb/-/mongodb-3.6.17.tgz",
@@ -2120,6 +2163,14 @@
 				"@types/node": "*"
 			}
 		},
+		"@types/stream-buffers": {
+			"version": "3.0.4",
+			"resolved": "https://registry.npmjs.org/@types/stream-buffers/-/stream-buffers-3.0.4.tgz",
+			"integrity": "sha512-qU/K1tb2yUdhXkLIATzsIPwbtX6BpZk0l3dPW6xqWyhfzzM1ECaQ/8faEnu3CNraLiQ9LHyQQPBGp7N9Fbs25w==",
+			"requires": {
+				"@types/node": "*"
+			}
+		},
 		"@types/uuid": {
 			"version": "8.3.0",
 			"resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-8.3.0.tgz",
@@ -2521,6 +2572,17 @@
 			"resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
 			"integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
 		},
+		"exif-be-gone": {
+			"version": "1.2.0",
+			"resolved": "https://registry.npmjs.org/exif-be-gone/-/exif-be-gone-1.2.0.tgz",
+			"integrity": "sha512-FIfhEo2jJwXX94iLIONdxm2koKKarpwN6E8wMk8nfgTjRFZySMZRoWzWUvUEaTK+L6iAOzHpSNv4mgdL1JlLdQ==",
+			"requires": {
+				"@types/chai": "^4.2.12",
+				"@types/mocha": "^8.0.2",
+				"@types/node": "^14.0.27",
+				"@types/stream-buffers": "^3.0.3"
+			}
+		},
 		"express": {
 			"version": "4.17.1",
 			"resolved": "https://registry.npmjs.org/express/-/express-4.17.1.tgz",

package.json

@@ -26,6 +26,7 @@
 		"btoa": "^1.2.1",
 		"cheerio": "^1.0.0-rc.5",
 		"dotenv": "^10.0.0",
+		"exif-be-gone": "^1.2.0",
 		"express": "^4.17.1",
 		"express-async-errors": "^3.1.1",
 		"file-type": "^16.5.0",

src/util/FileStorage.ts

@@ -3,6 +3,8 @@ import fs from "fs";
 import fse from "fs-extra";
 import { join, relative, dirname } from "path";
 import "missing-native-js-functions";
+import { Readable } from "stream";
+import ExifTransformer = require("exif-be-gone");
 
 function getPath(path: string) {
 	// STORAGE_LOCATION has a default value in start.ts
@@ -26,7 +28,10 @@ export class FileStorage implements Storage {
 		path = getPath(path);
 		fse.ensureDirSync(dirname(path));
 
-		return fs.writeFileSync(path, value, { encoding: "binary" });
+		value = Readable.from(value);
+		const cleaned_file = fs.createWriteStream(path);
+
+		return value.pipe(new ExifTransformer()).pipe(cleaned_file);
 	}
 
 	async delete(path: string) {