opnform-host-nginx/client/middleware/custom-domain.global.js

56 lines
1.4 KiB
JavaScript

import { customDomainUsed, getDomain, getHost } from "~/lib/utils.js"
/**
* Added by Caddy when proxying to the app
* @type {string}
*/
const customDomainHeaderName = "user-custom-domain"
/**
* List of routes that can be used with a custom domain
* @type {string[]}
*/
const customDomainAllowedRoutes = ["forms-slug"]
function redirectToMainDomain(details = {}) {
console.warn("Redirecting to main domain", { reason: "unknown", ...details })
return navigateTo(
useRuntimeConfig().public.appUrl +
"?utm_source=failed_custom_domain_redirect",
{ redirectCode: 301, external: true },
)
}
export default defineNuxtRouteMiddleware((to) => {
if (!customDomainUsed()) return
const config = useRuntimeConfig()
const customDomainHeaderValue = useRequestHeaders()[customDomainHeaderName]
if (
import.meta.server &&
(!customDomainHeaderValue ||
customDomainHeaderValue !== getDomain(getHost()))
) {
return redirectToMainDomain({
reason: "header_mismatch",
customDomainHeaderValue: customDomainHeaderValue,
host: getDomain(getHost()),
})
}
if (!config.public.customDomainsEnabled) {
// If custom domain not allowed, redirect
return redirectToMainDomain({
reason: "custom_domains_disabled",
})
}
if (!customDomainAllowedRoutes.includes(to.name)) {
// Custom domain only allowed for form url
return redirectToMainDomain({
reason: "route_not_allowed",
})
}
})