Add rewrite url for articles relative resources

src/app.js

@@ -161,9 +161,16 @@ module.exports = (config) => {
     }
   });
 
+  //rewrite urls to hide articles titles : /2019/05/05/sometitle/img.png => /2019/05/05/img.png
+  app.use((req, res, next) => {
+    if (/^\/\d{4}\/\d{2}\/\d{2}\//.test(req.url))
+      req.url = req.url.slice(0, 11) + req.url.slice(req.url.lastIndexOf('/'));
+    next();
+  });
+
   // catch all article urls and render them
   app.get('*', (req, res, next) => {
-    if (/^\/\d{4}\/\d{2}\/\d{2}\/(\w*\/)?$/.test(req.path)) {
+    if (/^\/\d{4}\/\d{2}\/\d{2}\/$/.test(req.path)) {
       const articlePath = req.path.substr(1, 10);
       const article = articles[articlePath];
       if (!article)

test/app.test.js

@@ -286,13 +286,22 @@ describe('Test static files', () => {
     });
   });
   test('200 valid file', (done) => {
-    fs.writeFileSync(`${dataDir}/somefile.txt`, 'filecontent');
+    fs.writeFileSync(path.join(dataDir, 'somefile.txt'), 'filecontent');
     request(app).get('/somefile.txt').then((response) => {
       expect(response.statusCode).toBe(200);
       expect(response.text).toBe('filecontent');
       done();
     });
   });
+  test('200 valid resource of article', (done) => {
+    utils.createEmptyDirs([path.join(dataDir, '2019', '05', '05'),]);
+    fs.writeFileSync(path.join(dataDir, '2019', '05', '05', 'somefile.txt'), 'filecontent');
+    request(app).get('/2019/05/05/title/somefile.txt').then((response) => {
+      expect(response.statusCode).toBe(200);
+      expect(response.text).toBe('filecontent');
+      done();
+    });
+  });
 });
 
 describe('Test other requests', () => {