fix: #8549 send 308 Permanent Redirect on topic/category shortlinks

src/controllers/category.js

@@ -39,7 +39,7 @@ categoryController.get = async function (req, res, next) {
 	}
 
 	if (!res.locals.isAPI && (!req.params.slug || categoryFields.slug !== cid + '/' + req.params.slug) && (categoryFields.slug && categoryFields.slug !== cid + '/')) {
-		return helpers.redirect(res, '/category/' + categoryFields.slug);
+		return helpers.redirect(res, '/category/' + categoryFields.slug, true);
 	}
 
 	const topicCount = categoryFields.topic_count;

src/controllers/helpers.js

@@ -151,11 +151,11 @@ helpers.notAllowed = async function (req, res, error) {
 	}
 };
 
-helpers.redirect = function (res, url) {
+helpers.redirect = function (res, url, permanent) {
 	if (res.locals.isAPI) {
 		res.set('X-Redirect', encodeURI(url)).status(200).json(url);
 	} else {
-		res.redirect(nconf.get('relative_path') + encodeURI(url));
+		res.redirect(permanent ? 308 : 307, nconf.get('relative_path') + encodeURI(url));
 	}
 };
 

src/controllers/topics.js

@@ -44,7 +44,7 @@ topicsController.get = async function getTopic(req, res, callback) {
 	}
 
 	if (!res.locals.isAPI && (!req.params.slug || topicData.slug !== tid + '/' + req.params.slug) && (topicData.slug && topicData.slug !== tid + '/')) {
-		return helpers.redirect(res, '/topic/' + topicData.slug + (postIndex ? '/' + postIndex : '') + (currentPage > 1 ? '?page=' + currentPage : ''));
+		return helpers.redirect(res, '/topic/' + topicData.slug + (postIndex ? '/' + postIndex : '') + (currentPage > 1 ? '?page=' + currentPage : ''), true);
 	}
 
 	if (postIndex === 'unread') {