Added consent page.

src/web/consent.js

@@ -0,0 +1,29 @@
+export default function consentHandler(req, res, next) {
+	if (Object.hasOwn(req.query, 'lgbt')) {
+		const lgbtFilters = (req.tagFilter || []).filter((tag) => !['gay', 'bisexual', 'transsexual'].includes(tag));
+
+		req.tagFilter = lgbtFilters; // eslint-disable-line no-param-reassign
+		res.cookie('tags', JSON.stringify(lgbtFilters));
+	}
+
+	if (Object.hasOwn(req.query, 'straight')) {
+		const straightFilters = Array.from(new Set([...(req.tagFilter || []), 'gay', 'bisexual', 'transsexual']));
+
+		req.tagFilter = straightFilters; // eslint-disable-line no-param-reassign
+		res.cookie('tags', JSON.stringify(straightFilters));
+	}
+
+	if (Object.hasOwn(req.query, 'consent')) {
+		req.session.hasConsent = true; // eslint-disable-line no-param-reassign
+		res.redirect(req.path);
+
+		return;
+	}
+
+	if (!req.path.includes('/consent') && !req.session?.hasConsent) {
+		res.redirect('/consent');
+		return;
+	}
+
+	next();
+}