Add file handlers, s3 support

src/utils/claims.ts

@@ -10,6 +10,7 @@ export type Claim =
   | "permit:delete"
   | "file:upload"
   | "file:download"
+  | "file:delete"
   | "token:read"
   | "token:write"
   | "token:delete";

src/utils/s3.ts

@@ -0,0 +1,46 @@
+import {
+  S3Client,
+  PutObjectCommand,
+  GetObjectCommand,
+  DeleteObjectCommand,
+} from "@aws-sdk/client-s3";
+import { getSignedUrl } from "@aws-sdk/s3-request-presigner";
+
+const BUCKET = process.env.BUCKET || "";
+
+const client = new S3Client({
+  region: process.env.REGION || "",
+  credentials: {
+    accessKeyId: process.env.ACCESS_KEY_ID || "",
+    secretAccessKey: process.env.SECRET_ACCESS_KEY || "",
+  },
+});
+
+export async function uploadFileS3(key: string, body: Buffer) {
+  const command = new PutObjectCommand({
+    Body: body,
+    Bucket: BUCKET,
+    Key: key,
+  });
+
+  const response = await client.send(command);
+}
+
+export async function getFileUrlS3(key: string, name: string) {
+  const command = new GetObjectCommand({
+    Bucket: BUCKET,
+    Key: key,
+    ResponseContentDisposition: `attachment; filename=${name}`,
+  });
+
+  return await getSignedUrl(client, command, { expiresIn: 300 });
+}
+
+export async function deleteFileS3(key: string) {
+  const command = new DeleteObjectCommand({
+    Bucket: BUCKET,
+    Key: key,
+  });
+
+  return await client.send(command);
+}