feat: Allow data imports larger than the standard attachment size (#4449)

* feat: Allow data imports larger than the standard attachment size

* Use correct preset for data imports

* Cleanup of expired attachments

* lint

server/models/helpers/AttachmentHelper.ts

@@ -0,0 +1,76 @@
+import { addHours } from "date-fns";
+import { AttachmentPreset } from "@shared/types";
+import env from "@server/env";
+
+export default class AttachmentHelper {
+  /**
+   * Get the upload location for the given upload details
+   *
+   * @param acl The ACL to use
+   * @param id The ID of the attachment
+   * @param name The name of the attachment
+   * @param userId The ID of the user uploading the attachment
+   */
+  static getKey({
+    acl,
+    id,
+    name,
+    userId,
+  }: {
+    acl: string;
+    id: string;
+    name: string;
+    userId: string;
+  }) {
+    const bucket = acl === "public-read" ? "public" : "uploads";
+    const keyPrefix = `${bucket}/${userId}/${id}`;
+    return `${keyPrefix}/${name}`;
+  }
+
+  /**
+   * Get the ACL to use for a given attachment preset
+   *
+   * @param preset The preset to use
+   * @returns A valid S3 ACL
+   */
+  static presetToAcl(preset: AttachmentPreset) {
+    switch (preset) {
+      case AttachmentPreset.Avatar:
+        return "public-read";
+      default:
+        return env.AWS_S3_ACL;
+    }
+  }
+
+  /**
+   * Get the expiration time for a given attachment preset
+   *
+   * @param preset The preset to use
+   * @returns An expiration time
+   */
+  static presetToExpiry(preset: AttachmentPreset) {
+    switch (preset) {
+      case AttachmentPreset.Import:
+        return addHours(new Date(), 24);
+      default:
+        return undefined;
+    }
+  }
+
+  /**
+   * Get the maximum upload size for a given attachment preset
+   *
+   * @param preset The preset to use
+   * @returns The maximum upload size in bytes
+   */
+  static presetToMaxUploadSize(preset: AttachmentPreset) {
+    switch (preset) {
+      case AttachmentPreset.Avatar:
+        return Math.min(1024 * 1024 * 5, env.AWS_S3_UPLOAD_MAX_SIZE);
+      case AttachmentPreset.Import:
+        return env.MAXIMUM_IMPORT_SIZE;
+      default:
+        return env.AWS_S3_UPLOAD_MAX_SIZE;
+    }
+  }
+}