Backup endpoint improvements (#9365)

closes #9297

- backup endpoint returns JSON
- allows setting of export filename
- DRY up code
- the endpoint is not documented, no breaking change

core/server/api/db.js

@@ -1,17 +1,13 @@
 // # DB API
 // API for DB operations
 var Promise = require('bluebird'),
-    path = require('path'),
-    fs = require('fs-extra'),
     pipeline = require('../lib/promise/pipeline'),
     localUtils = require('./utils'),
     exporter = require('../data/export'),
     importer = require('../data/importer'),
     backupDatabase = require('../data/db/backup'),
     models = require('../models'),
-    config = require('../config'),
     common = require('../lib/common'),
-    urlService = require('../services/url'),
     docName = 'db',
     db;
 
@@ -23,26 +19,26 @@ var Promise = require('bluebird'),
 db = {
     /**
      * ### Archive Content
-     * Generate the JSON to export - for Moya only
+     * Generate the JSON to export
      *
      * @public
      * @returns {Promise} Ghost Export JSON format
      */
-    backupContent: function () {
-        var props = {
-            data: exporter.doExport(),
-            filename: exporter.fileName()
-        };
+    backupContent: function (options) {
+        var tasks;
 
-        return Promise.props(props)
-            .then(function successMessage(exportResult) {
-                var filename = path.resolve(urlService.utils.urlJoin(config.get('paths').contentPath, 'data', exportResult.filename));
+        options = options || {};
 
-                return fs.writeFile(filename, JSON.stringify(exportResult.data))
-                    .then(function () {
-                        return filename;
-                    });
-            });
+        function jsonResponse(filename) {
+            return {db: [{filename: filename}]};
+        }
+
+        tasks = [
+            backupDatabase,
+            jsonResponse
+        ];
+
+        return pipeline(tasks, options);
     },
     /**
      * ### Export Content

core/server/data/db/backup.js

@@ -35,6 +35,7 @@ backup = function backup(options) {
         .then(writeExportFile)
         .then(function successMessage(filename) {
             common.logging.info('Database backup written to: ' + filename);
+            return filename;
         });
 };
 

core/server/data/export/index.js

@@ -21,6 +21,13 @@ exportFileName = function exportFileName(options) {
     var datetime = (new Date()).toJSON().substring(0, 10),
         title = '';
 
+    options = options || {};
+
+    // custom filename
+    if (options.filename) {
+        return Promise.resolve(options.filename + '.json');
+    }
+
     return models.Settings.findOne({key: 'title'}, _.merge({}, modelOptions, options)).then(function (result) {
         if (result) {
             title = security.string.safe(result.get('value')) + '.';

core/test/functional/routes/api/db_spec.js

@@ -116,7 +116,28 @@ describe('DB API', function () {
                 if (err) {
                     return done(err);
                 }
-                res.body.should.match(/data/);
+
+                (typeof res.body).should.be.Object;
+                should.exist(res.body.db[0].filename);
+                fsStub.calledOnce.should.eql(true);
+
+                done();
+            });
+    });
+
+    it('export can be triggered and named by backup client', function (done) {
+        backupQuery = '?client_id=' + backupClient.slug + '&client_secret=' + backupClient.secret + '&filename=test';
+        fsStub = sandbox.stub(fs, 'writeFile').resolves();
+        request.post(testUtils.API.getApiQuery('db/backup' + backupQuery))
+            .expect('Content-Type', /json/)
+            .expect(200)
+            .end(function (err, res) {
+                if (err) {
+                    return done(err);
+                }
+
+                (typeof res.body).should.be.Object;
+                res.body.db[0].filename.should.match(/test\.json/);
                 fsStub.calledOnce.should.eql(true);
 
                 done();