Removed stripe keys and analytics data from export (#12573)

closes https://github.com/TryGhost/Ghost/issues/12449

We’re starting to bump into errors with our current exporter due to the size of some of the tables in the db and hitting an issue with Ghost running out of memory during export. The intention for the export/import is not to be backup/restore functionality, but for exporting content and authors.

In addition, exporting and re-importing Stripe secret/publishable keys can cause unexpected side-effects for sites that can has major side-effects. This change -

- Removes `email_batches` and `email_recipients` tables from export data to reduce export size due to large amount of analytics data
- Removes stripe's secret/publishable/webhook keys to avoid unexpected issues with re-import

core/server/data/exporter/index.js

@@ -8,7 +8,16 @@ const logging = require('../../../shared/logging');
 const errors = require('@tryghost/errors');
 const security = require('@tryghost/security');
 const models = require('../../models');
-const EXCLUDED_TABLES = ['sessions', 'mobiledoc_revisions'];
+const EXCLUDED_TABLES = ['sessions', 'mobiledoc_revisions', 'email_batches', 'email_recipients'];
+const EXCLUDED_SETTING_KEYS = [
+    'stripe_connect_publishable_key',
+    'stripe_connect_secret_key',
+    'stripe_connect_account_id',
+    'stripe_secret_key',
+    'stripe_publishable_key',
+    'members_stripe_webhook_id',
+    'members_stripe_webhook_secret'
+];
 
 const modelOptions = {context: {internal: true}};
 
@@ -53,6 +62,12 @@ const exportTable = function exportTable(tableName, options) {
     }
 };
 
+const getSettingsTableData = function getSettingsTableData(settingsData) {
+    return settingsData && settingsData.filter((setting) => {
+        return !EXCLUDED_SETTING_KEYS.includes(setting.key);
+    });
+};
+
 const doExport = function doExport(options) {
     options = options || {include: []};
 
@@ -78,7 +93,11 @@ const doExport = function doExport(options) {
         };
 
         _.each(tables, function (name, i) {
-            exportData.data[name] = tableData[i];
+            if (name === 'settings') {
+                exportData.data[name] = getSettingsTableData(tableData[i]);
+            } else {
+                exportData.data[name] = tableData[i];
+            }
         });
 
         return exportData;

test/api-acceptance/admin/db_spec.js

@@ -47,7 +47,7 @@ describe('DB API', function () {
         const jsonResponse = res.body;
         should.exist(jsonResponse.db);
         jsonResponse.db.should.have.length(1);
-        Object.keys(jsonResponse.db[0].data).length.should.eql(34);
+        Object.keys(jsonResponse.db[0].data).length.should.eql(32);
     });
 
     it('Can import a JSON database', async function () {