fix: STRF-12276 Remove compile method from hbs renderer (#320)

Author: jairo-bc

helpers/3p/array.js

@@ -42,7 +42,9 @@ helpers.after = function(array, n) {
  * @api public
  */
 
-helpers.arrayify = function(value) {
+helpers.arrayify = function(...args) {
+  args.pop(); // remove handlebars options object
+  const value = args[0];
   return value ? (Array.isArray(value) ? value : [value]) : [];
 };
 

helpers/3p/inflection.js

@@ -18,7 +18,9 @@ var helpers = module.exports;
  * @api public
  */
 
-helpers.inflect = function(count, singular, plural, include) {
+helpers.inflect = function(...args) {
+  args.pop();
+  const [count, singular, plural, include] = args;
   var word = (count > 1 || count === 0) ? plural : singular;
 
   if (utils.isUndefined(include) || include === false) {

helpers/3p/misc.js

@@ -16,7 +16,10 @@ var helpers = module.exports;
  * @api public
  */
 
-helpers.default = function(value, defaultValue) {
+helpers.default = function(...args) {
+  args.pop();
+  const value = args.shift();
+  const defaultValue = args.shift();
   return !value
     ? defaultValue
     : value;

helpers/deprecated/pick.js

@@ -6,6 +6,7 @@ const factory = () => {
      * @deprecate
      */
     return function(...args) {
+        args.pop();
         const target = args.shift();
         const toReturn = {};
         const paths = args[0];

helpers/getImageSrcset.js

@@ -3,7 +3,9 @@ const utils = require('./3p/utils');
 const common = require('./lib/common');
 
 const factory = globals => {
-    return function (image, defaultImageUrl) {
+    return function (...args) {
+        args.pop();
+        let [image, defaultImageUrl] = args;
         // Regex to test size string is of the form 123x123 or 100w
         const sizeRegex = /(^\d+w$)|(^(\d+?)x(\d+?)$)/;
         // Regex to test to that srcset descriptor is of the form 1x 1.5x 2x OR 123w

helpers/getObject.js

@@ -10,7 +10,9 @@ const { getValue } = require('./lib/common');
  * Property paths (`a.b.c`) may be used to get nested properties.
  */
 const factory = (globals) => {
-    return function (path, context) {
+    return function (...args) {
+        args.pop();
+        let [path, context] = args;
         // use an empty context if none was given
         // (expect 3 args: `path`, `context`, and the `options` object 
         // Handlebars always passes as the last argument to a helper)

helpers/toLowerCase.js

@@ -1,7 +1,9 @@
 'use strict';
 
 const factory = () => {
-    return function(string) {
+    return function(...args) {
+        args.pop();
+        const string = args[0];
         if (typeof string !== 'string') {
             return string;
         }

helpers/truncate.js

@@ -24,7 +24,9 @@ const substring = require('stringz').substring;
  *  {{lang (truncate 'blog.post.body.' 40) }}
  */
 const factory = globals => {
-    return function(string, length) {
+    return function(...args) {
+        args.pop();
+        const [string, length] = args;
         if (typeof string !== 'string' || string.length === 0) {
             return string;
         }

index.js

@@ -296,6 +296,8 @@ class HandlebarsRenderer {
                 context.locale_name = this._translator.getLocale();
             }
 
+            delete this.handlebars.compile;
+
             // Look up the template
             const template = this.handlebars.partials[path];
             if (typeof template === 'undefined') {
@@ -333,11 +335,19 @@ class HandlebarsRenderer {
      */
     renderString(template, context) {
         return new Promise((resolve, reject) => {
+            let precompiledTemplate;
             context = context || {};
 
+            if (typeof template !== 'string') {
+                return reject(new CompileError('Template must be a string'));
+            }
+
             // Compile the template
             try {
-                template = this.handlebars.compile(template);
+                delete this.handlebars.compile;
+                const precompiled = this.handlebars.precompile(template, handlebarsOptions);
+                eval(`precompiledTemplate = ${precompiled}`);
+                template = this.handlebars.template(precompiledTemplate);
             } catch(e) {
                 return reject(new CompileError(e.message));
             }

spec/index.js

@@ -374,7 +374,7 @@ describe('renderString', () => {
 
     it('throws RenderError if given malformed template', done => {
         renderer.renderString('{{', context).catch(e => {
-            expect(e instanceof HandlebarsRenderer.errors.RenderError).to.be.true();
+            expect(e instanceof HandlebarsRenderer.errors.CompileError).to.be.true();
             done();
         });
     });
@@ -514,3 +514,56 @@ describe('logging', () => {
     });
 
 });
+
+// STRF-12276
+describe('object manipulation fix', () => {
+    let sandbox, logger;
+    let consoleErrorCopy = console.error;
+    const templateString = `{{#JSONparse}} '{"a":"b"}'{{/JSONparse}}`;
+
+    beforeEach(done => {
+        sandbox = Sinon.createSandbox();
+        logger = {
+            info: Sinon.fake(),
+            warn: Sinon.fake(),
+            error: Sinon.fake(),
+        };
+        console = {
+            log: console.log,
+            error: Sinon.fake(),
+        };
+        done();
+    }); 
+
+    afterEach(done => {
+        console.error = consoleErrorCopy;
+        sandbox.restore();
+        done();
+    });
+
+    it('shouldnt print when use renderString', async () => {
+        const renderer = new HandlebarsRenderer({}, {}, 'v4', logger);
+        try {
+            await renderer.renderString(templateString, {});
+            expect(logger.error.called()).to.equal(false);
+        } catch (e) {
+            expect(e instanceof HandlebarsRenderer.errors.RenderError).to.be.true();
+        }
+    });
+
+    it('shouldnt print when use render', async () => {
+        const renderer = new HandlebarsRenderer({}, {}, 'v4', logger);
+        try {
+            const templates = {'foo': templateString };
+               
+            const processor = renderer.getPreProcessor();
+            renderer.addTemplates(processor(templates));
+            await renderer.render('foo', {});
+            expect(logger.error.called()).to.equal(false);
+        } catch (e) {
+            expect(e instanceof HandlebarsRenderer.errors.RenderError).to.be.true();
+        }
+    });
+});
+
+