next/dist/shared/lib/i18n/get-locale-redirect.js

The React Framework

"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
Object.defineProperty(exports, "getLocaleRedirect", {
    enumerable: true,
    get: function() {
        return getLocaleRedirect;
    }
});
const _acceptheader = require("../../../server/accept-header");
const _denormalizepagepath = require("../page-path/denormalize-page-path");
const _detectdomainlocale = require("./detect-domain-locale");
const _formaturl = require("../router/utils/format-url");
const _getcookieparser = require("../../../server/api-utils/get-cookie-parser");
function getLocaleFromCookie(i18n, headers = {}) {
    const nextLocale = (0, _getcookieparser.getCookieParser)(headers || {})()?.NEXT_LOCALE?.toLowerCase();
    return nextLocale ? i18n.locales.find((locale)=>nextLocale === locale.toLowerCase()) : undefined;
}
function detectLocale({ i18n, headers, domainLocale, preferredLocale, pathLocale }) {
    return pathLocale || domainLocale?.defaultLocale || getLocaleFromCookie(i18n, headers) || preferredLocale || i18n.defaultLocale;
}
function getAcceptPreferredLocale(i18n, headers) {
    if (headers?.['accept-language'] && !Array.isArray(headers['accept-language'])) {
        try {
            return (0, _acceptheader.acceptLanguage)(headers['accept-language'], i18n.locales);
        } catch (err) {}
    }
}
function getLocaleRedirect({ defaultLocale, domainLocale, pathLocale, headers, nextConfig, urlParsed }) {
    if (nextConfig.i18n && nextConfig.i18n.localeDetection !== false && (0, _denormalizepagepath.denormalizePagePath)(urlParsed.pathname) === '/') {
        const preferredLocale = getAcceptPreferredLocale(nextConfig.i18n, headers);
        const detectedLocale = detectLocale({
            i18n: nextConfig.i18n,
            preferredLocale,
            headers,
            pathLocale,
            domainLocale
        });
        const preferredDomain = (0, _detectdomainlocale.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 (0, _formaturl.formatUrl)({
                ...urlParsed,
                pathname: `${nextConfig.basePath || ''}/${detectedLocale}${nextConfig.trailingSlash ? '/' : ''}`
            });
        }
    }
}

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