next
Version:
The React Framework
53 lines (52 loc) • 2.83 kB
JavaScript
import { acceptLanguage } from "../../../server/accept-header";
import { denormalizePagePath } from "../page-path/denormalize-page-path";
import { detectDomainLocale } from "./detect-domain-locale";
import { formatUrl } from "../router/utils/format-url";
import { getCookieParser } from "../../../server/api-utils";
function getLocaleFromCookie(i18n, headers) {
if (headers === void 0) headers = {};
var _getCookieParser, _getCookieParser_NEXT_LOCALE;
const nextLocale = (_getCookieParser = getCookieParser(headers || {})()) == null ? void 0 : (_getCookieParser_NEXT_LOCALE = _getCookieParser.NEXT_LOCALE) == null ? void 0 : _getCookieParser_NEXT_LOCALE.toLowerCase();
return nextLocale ? i18n.locales.find((locale)=>nextLocale === locale.toLowerCase()) : undefined;
}
function detectLocale(param) {
let { i18n , headers , domainLocale , preferredLocale , pathLocale } = param;
return pathLocale || (domainLocale == null ? void 0 : domainLocale.defaultLocale) || getLocaleFromCookie(i18n, headers) || preferredLocale || i18n.defaultLocale;
}
function getAcceptPreferredLocale(i18n, headers) {
if ((headers == null ? void 0 : headers["accept-language"]) && !Array.isArray(headers["accept-language"])) {
try {
return acceptLanguage(headers["accept-language"], i18n.locales);
} catch (err) {}
}
}
export function getLocaleRedirect(param) {
let { defaultLocale , domainLocale , pathLocale , headers , nextConfig , urlParsed } = param;
if (nextConfig.i18n && nextConfig.i18n.localeDetection !== false && denormalizePagePath(urlParsed.pathname) === "/") {
const preferredLocale = getAcceptPreferredLocale(nextConfig.i18n, headers);
const detectedLocale = detectLocale({
i18n: nextConfig.i18n,
preferredLocale,
headers,
pathLocale,
domainLocale
});
const preferredDomain = detectDomainLocale(nextConfig.i18n.domains, undefined, preferredLocale);
if (domainLocale && preferredDomain) {
const isPDomain = preferredDomain.domain === domainLocale.domain;
const isPLocale = preferredDomain.defaultLocale === preferredLocale;
if (!isPDomain || !isPLocale) {
const scheme = "http" + (preferredDomain.http ? "" : "s");
const rlocale = isPLocale ? "" : preferredLocale;
return scheme + "://" + preferredDomain.domain + "/" + rlocale;
}
}
if (detectedLocale.toLowerCase() !== defaultLocale.toLowerCase()) {
return formatUrl({
...urlParsed,
pathname: (nextConfig.basePath || "") + "/" + detectedLocale + (nextConfig.trailingSlash ? "/" : "")
});
}
}
}
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