Added opportunity to upload favicon and route to get saved favicon

config/development.json

@@ -3,5 +3,6 @@
   "database": ".db",
   "rcFile": "./.codexdocsrc",
   "uploads": "public/uploads",
-  "secret": "iamasecretstring"
+  "secret": "iamasecretstring",
+  "faviconURL": ""
 }

config/production.json

@@ -3,5 +3,6 @@
   "database": ".db",
   "rcFile": "./.codexdocsrc",
   "uploads": "/uploads",
-  "secret": "iamasecretstring"
+  "secret": "iamasecretstring",
+  "faviconURL": ""
 }

config/testing.json

@@ -3,5 +3,6 @@
   "database": ".testdb",
   "rcFile": "./src/test/.codexdocsrc",
   "uploads": "public/uploads_test",
-  "secret": "iamasecretstring"
+  "secret": "iamasecretstring",
+  "faviconURL": ""
 }

src/backend/routes/favicon.ts

@@ -0,0 +1,22 @@
+import config from 'config';
+import uploadFavicon from '../utils/uploadFavicon';
+import path from 'path';
+import os from 'os';
+import fs from 'fs';
+import express from 'express';
+
+const router = express.Router();
+
+router.get('/favicon', (req, res) => {
+  const faviconURL: string = config.get('faviconURL');
+
+  uploadFavicon(faviconURL).then((file) => {
+    const filename = faviconURL.substring(faviconURL.lastIndexOf('/')+1);
+    const filePath = path.join(os.tmpdir(), filename);
+
+    fs.writeFileSync(filePath, file);
+    res.sendFile(filePath);
+  });
+} );
+
+export default router;

src/backend/routes/index.ts

@@ -5,12 +5,14 @@ import auth from './auth';
 import aliases from './aliases';
 import api from './api';
 import pagesMiddleware from './middlewares/pages';
+import favicon from './favicon';
 
 const router = express.Router();
 
 router.use('/', pagesMiddleware, home);
 router.use('/', pagesMiddleware, pages);
 router.use('/', pagesMiddleware, auth);
+router.use('/', favicon);
 router.use('/api', api);
 router.use('/', aliases);
 

src/backend/utils/uploadFavicon.ts

@@ -0,0 +1,34 @@
+import { get } from 'https';
+
+// Create empty buffer for file
+let file: Buffer = Buffer.alloc(0);
+
+/**
+ * Upload favicon by url
+ *
+ * @param url - url for uploading favicon
+ * @returns { Promise<Buffer> } - Promise with whole file data
+ */
+export default function uploadFavicon(url: string): Promise<Buffer> {
+  return new Promise(function (resolve, reject) {
+    const req = get(url, function ( res) {
+      // Reject on bad status
+      if (res.statusCode && (res.statusCode < 200 || res.statusCode >= 300)) {
+        return reject(new Error('statusCode=' + res.statusCode));
+      }
+      // Response on incoming data
+      res.on('data', (chunk) => {
+        file = Buffer.concat([file, chunk]);
+      });
+      res.on('end', function () {
+        resolve(file);
+      });
+    });
+
+    // Reject on request error
+    req.on('error', function (err) {
+      reject(err);
+    });
+    req.end();
+  });
+}

src/backend/views/layout.twig

@@ -7,11 +7,7 @@
     <meta property="og:title" content="{{ page.title | striptags }}" />
     <meta property="article:modified_time" content="{{ (page.body.time / 1000) | date("c") }}" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
-    {% if config.favicon is empty %}
-      <link rel="icon" type="image/png" href="/favicon.png">
-    {% else %}
-      <link rel="icon" type="image/png" href="{{ config.favicon }}">
-    {% endif %}
+    <link rel="icon" type="image/png" href="/favicon">
   </head>
     <script>
       window.config = {

src/backend/views/pages/index.twig

@@ -4,11 +4,7 @@
   <title>{{ config.title }}</title>
   <link rel="stylesheet" href="/dist/main.css" />
   <link rel="preload" href="{{ config.landingFrameSrc }}" as="document">
-  {% if config.favicon is empty %}
-    <link rel="icon" type="image/png" href="/favicon.png?v=2">
-  {% else %}
-    <link rel="icon" type="image/png" href="{{ config.favicon }}">
-  {% endif %}
+  <link rel="icon" type="image/png" href="/favicon">
   <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
   <meta property="og:title" content="{{ config.title }}" />
   <meta property="og:site_name" content="{{ config.title }}" />