feat(core): Improvements/overhaul for nodes working with binary data (#7651)

Github issue / Community forum post (link here to close automatically):

---------

Co-authored-by: Giulio Andreini <andreini@netseven.it>
Co-authored-by: Marcus <marcus@n8n.io>

packages/nodes-base/nodes/Files/ReadWriteFile/helpers/utils.ts

@@ -0,0 +1,32 @@
+import type { IDataObject, IExecuteFunctions } from 'n8n-workflow';
+import { NodeOperationError } from 'n8n-workflow';
+
+export function errorMapper(
+	this: IExecuteFunctions,
+	error: Error,
+	itemIndex: number,
+	context?: IDataObject,
+) {
+	let message;
+	let description;
+
+	if (error.message.includes('Cannot create a string longer than')) {
+		message = 'The file is too large';
+		description =
+			'The binary file you are attempting to read exceeds 512MB, which is limit when using default binary data mode, try using the filesystem binary mode. More information <a href="https://docs.n8n.io/hosting/scaling/binary-data/" target="_blank">here</a>.';
+	} else if (error.message.includes('EACCES') && context?.operation === 'read') {
+		const path =
+			((error as unknown as IDataObject).path as string) || (context?.filePath as string);
+		message = `You don't have the permissions to access ${path}`;
+		description =
+			"Verify that the path specified in 'File(s) Selector' is correct, or change the file(s) permissions if needed";
+	} else if (error.message.includes('EACCES') && context?.operation === 'write') {
+		const path =
+			((error as unknown as IDataObject).path as string) || (context?.filePath as string);
+		message = `You don't have the permissions to write the file ${path}`;
+		description =
+			"Specify another destination folder in 'File Path and Name', or change the permissions of the parent folder";
+	}
+
+	return new NodeOperationError(this.getNode(), error, { itemIndex, message, description });
+}