From 512375f6ed6f7fe895f0ebbb9494e7d2feb7a525 Mon Sep 17 00:00:00 2001
From: Flam3rboy <34555296+Flam3rboy@users.noreply.github.com>
Date: Thu, 12 Aug 2021 20:16:45 +0200
Subject: :sparkles: cdn

---
 cdn/src/util/FileStorage.ts | 40 ++++++++++++++++++++++++++++++++++++++++
 cdn/src/util/Storage.ts     | 15 +++++++++++++++
 cdn/src/util/multer.ts      | 10 ++++++++++
 3 files changed, 65 insertions(+)
 create mode 100644 cdn/src/util/FileStorage.ts
 create mode 100644 cdn/src/util/Storage.ts
 create mode 100644 cdn/src/util/multer.ts

(limited to 'cdn/src/util')

diff --git a/cdn/src/util/FileStorage.ts b/cdn/src/util/FileStorage.ts
new file mode 100644
index 00000000..6e74788f
--- /dev/null
+++ b/cdn/src/util/FileStorage.ts
@@ -0,0 +1,40 @@
+import { Storage } from "./Storage";
+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
+	const root = process.env.STORAGE_LOCATION || "../";
+	var filename = join(root, path);
+
+	if (path.indexOf("\0") !== -1 || !filename.startsWith(root)) throw new Error("invalid path");
+	return filename;
+}
+
+export class FileStorage implements Storage {
+	async get(path: string): Promise<Buffer | null> {
+		try {
+			return fs.readFileSync(getPath(path));
+		} catch (error) {
+			return null;
+		}
+	}
+
+	async set(path: string, value: any) {
+		path = getPath(path);
+		fse.ensureDirSync(dirname(path));
+
+		value = Readable.from(value);
+		const cleaned_file = fs.createWriteStream(path);
+
+		return value.pipe(new ExifTransformer()).pipe(cleaned_file);
+	}
+
+	async delete(path: string) {
+		fs.unlinkSync(getPath(path));
+	}
+}
diff --git a/cdn/src/util/Storage.ts b/cdn/src/util/Storage.ts
new file mode 100644
index 00000000..f8b09e71
--- /dev/null
+++ b/cdn/src/util/Storage.ts
@@ -0,0 +1,15 @@
+import { FileStorage } from "./FileStorage";
+
+export interface Storage {
+	set(path: string, data: Buffer): Promise<void>;
+	get(path: string): Promise<Buffer | null>;
+	delete(path: string): Promise<void>;
+}
+
+var storage: Storage;
+
+if (process.env.STORAGE_PROVIDER === "file") {
+	storage = new FileStorage();
+}
+
+export { storage };
diff --git a/cdn/src/util/multer.ts b/cdn/src/util/multer.ts
new file mode 100644
index 00000000..bfdf6aff
--- /dev/null
+++ b/cdn/src/util/multer.ts
@@ -0,0 +1,10 @@
+import multerConfig from "multer";
+
+export const multer = multerConfig({
+	storage: multerConfig.memoryStorage(),
+	limits: {
+		fields: 10,
+		files: 10,
+		fileSize: 1024 * 1024 * 100, // 100 mb
+	},
+});
-- 
cgit 1.5.1