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Delete detect-annotation-preference.js

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Kevin Heis
2023-06-20 07:43:37 -07:00
parent 3c3bfa2a13
commit fd97da73ff
1 changed files with 0 additions and 68 deletions
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middleware/detect-annotation-preference.js
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@@ -1,68 +0,0 @@
import languages, { languageKeys } from '../lib/languages.js'
import parser from 'accept-language-parser'
import { USER_LANGUAGE_COOKIE_NAME } from '../lib/constants.js'
const chineseRegions = [
'CN', // Mainland
'HK', // Hong Kong
'SG', // Singapore
'TW', // Taiwan
]
function translationExists(language) {
if (language.code === 'zh') {
return chineseRegions.includes(language.region)
}
// 92BD1212-61B8-4E7A: Remove ` && !languages[language.code].wip` for the public ship of ko, fr, de, ru
return languageKeys.includes(language.code) && !languages[language.code].wip
}
function getLanguageCode(language) {
return language.code === 'cn' && chineseRegions.includes(language.region) ? 'zh' : language.code
}
function getUserLanguage(browserLanguages) {
try {
let numTopPreferences = 1
for (let lang = 0; lang < browserLanguages.length; lang++) {
// If language has multiple regions, Chrome adds the non-region language to list
if (lang > 0 && browserLanguages[lang].code !== browserLanguages[lang - 1].code)
numTopPreferences++
if (translationExists(browserLanguages[lang]) && numTopPreferences < 3) {
return getLanguageCode(browserLanguages[lang])
}
}
} catch {
return undefined
}
}
function getUserLanguageFromCookie(req) {
const value = req.cookies[USER_LANGUAGE_COOKIE_NAME]
// 92BD1212-61B8-4E7A: Remove ` && !languages[value].wip` for the public ship of ko, fr, de, ru
if (value && languages[value] && !languages[value].wip) {
return value
}
}
// determine language code from a path. Default to en if no valid match
export function getLanguageCodeFromPath(path) {
const maybeLanguage = (path.split('/')[path.startsWith('/_next/data/') ? 4 : 1] || '').slice(0, 2)
return languageKeys.includes(maybeLanguage) ? maybeLanguage : 'en'
}
export function getLanguageCodeFromHeader(req) {
const browserLanguages = parser.parse(req.headers['accept-language'])
return getUserLanguage(browserLanguages)
}
export default function detectLanguage(req, res, next) {
req.language = getLanguageCodeFromPath(req.path)
// Detecting browser language by user preference
req.userLanguage = getUserLanguageFromCookie(req)
if (!req.userLanguage) {
req.userLanguage = getLanguageCodeFromHeader(req)
}
return next()
}