render opengraph correctly for video, spoilers and no-thumb images, and show render time in ms at bottom of page.

helpers/files/deletetempfiles.js

@@ -2,7 +2,7 @@
 
 const remove = require('fs-extra').remove;
 
-module.exports = (req) => {
+module.exports = async (req) => {
 
 	if (req.files != null) {
 		let files = [];

helpers/render.js

@@ -8,6 +8,6 @@ const configs = require(__dirname+'/../configs/main.json')
 	, templateDirectory = path.join(__dirname+'/../views/pages/');
 
 module.exports = async (htmlName, templateName, options) => {
-	const html = pug.renderFile(`${templateDirectory}${templateName}`, { ...options, cache: configs.cacheTemplates, openGraph: configs.openGraph });
+	const html = pug.renderFile(`${templateDirectory}${templateName}`, { ...options, renderStart: Date.now(), cache: configs.cacheTemplates, openGraph: configs.openGraph });
 	return outputFile(`${uploadDirectory}html/${htmlName}`, html);
 };

views/includes/footer.pug

@@ -1,2 +1,3 @@
 small.footer
 	a(href='https://github.com/fatchan/jschan/') source code
+	span - rendered in #{Date.now() - renderStart}ms

views/pages/thread.pug

@@ -7,7 +7,13 @@ block head
 	meta(property='og:title', content=thread.subjct)
 	meta(property='og:url', content=openGraph.url)
 	meta(property='og:description', content=thread.message.substring(0,200))
-	meta(property='og:image', content=thread.files.length > 0 ? '/img/'+thread.files[0].filename : '')
+	if thread.files.length > 0
+		if thread.spoiler
+			meta(property='og:image', content='/img/spoiler.png')
+		else if thread.files[0].hasThumb
+			meta(property='og:image', content='/img/thumb-'+thread.files[0].filename.split('.')[0]+'.jpg')
+		else
+			meta(property='og:image', content='/img/'+thread.files[0].filename)
 
 block content
 	include ../includes/boardheader.pug