i18next-http-middleware
Version:
i18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno.
136 lines (135 loc) • 7.25 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var utils = _interopRequireWildcard(require("./utils.js"));
var _cookie = _interopRequireDefault(require("./languageLookups/cookie.js"));
var _querystring = _interopRequireDefault(require("./languageLookups/querystring.js"));
var _path = _interopRequireDefault(require("./languageLookups/path.js"));
var _header = _interopRequireDefault(require("./languageLookups/header.js"));
var _session = _interopRequireDefault(require("./languageLookups/session.js"));
var _httpFunctions = require("./httpFunctions.js");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
function getDefaults() {
return (0, _httpFunctions.extendOptionsWithDefaults)({
order: ['querystring', 'cookie', 'header'],
lookupQuerystring: 'lng',
lookupCookie: 'i18next',
lookupSession: 'lng',
lookupFromPathIndex: 0,
caches: false,
cookieSameSite: 'strict',
ignoreCase: true,
convertDetectedLanguage: function convertDetectedLanguage(l) {
return l;
}
});
}
var LanguageDetector = function () {
function LanguageDetector(services) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var allOptions = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
_classCallCheck(this, LanguageDetector);
this.type = 'languageDetector';
this.detectors = {};
this.init(services, options, allOptions);
}
return _createClass(LanguageDetector, [{
key: "init",
value: function init(services) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var allOptions = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
this.services = services;
this.options = utils.defaults(options, this.options || {}, getDefaults());
this.allOptions = allOptions;
if (typeof this.options.convertDetectedLanguage === 'string' && this.options.convertDetectedLanguage.indexOf('15897') > -1) {
this.options.convertDetectedLanguage = function (l) {
return l.replace('-', '_');
};
}
this.addDetector(_cookie.default);
this.addDetector(_querystring.default);
this.addDetector(_path.default);
this.addDetector(_header.default);
this.addDetector(_session.default);
}
}, {
key: "addDetector",
value: function addDetector(detector) {
this.detectors[detector.name] = detector;
}
}, {
key: "detect",
value: function detect(req, res, detectionOrder) {
var _this = this;
if (arguments.length < 2) return;
if (!detectionOrder) detectionOrder = this.options.order;
var found;
detectionOrder.forEach(function (detectorName) {
if (found || !_this.detectors[detectorName]) return;
var detections = _this.detectors[detectorName].lookup(req, res, _this.options);
if (!detections) return;
if (!Array.isArray(detections)) detections = [detections];
detections = detections.filter(function (d) {
return d !== undefined && d !== null && !utils.hasXSS(d);
}).map(function (d) {
return _this.options.convertDetectedLanguage(d);
});
if (_this.services.languageUtils.getBestMatchFromCodes) {
found = _this.services.languageUtils.getBestMatchFromCodes(detections);
if (found) {
if (_this.options.ignoreCase) {
if (detections.map(function (d) {
return d.toLowerCase();
}).indexOf(found.toLowerCase()) < 0) found = undefined;
} else {
if (detections.indexOf(found) < 0) found = undefined;
}
}
if (found) req.i18nextLookupName = detectorName;
} else {
found = detections.length > 0 ? detections[0] : null;
}
});
if (!found) {
var fallbacks = this.allOptions.fallbackLng;
if (typeof fallbacks === 'function') fallbacks = fallbacks();
if (typeof fallbacks === 'string') fallbacks = [fallbacks];
if (!fallbacks) fallbacks = [];
if (Object.prototype.toString.apply(fallbacks) === '[object Array]') {
found = fallbacks[0];
} else {
found = fallbacks[0] || fallbacks.default && fallbacks.default[0];
}
}
;
return found;
}
}, {
key: "cacheUserLanguage",
value: function cacheUserLanguage(req, res, lng, caches) {
var _this2 = this;
if (arguments.length < 3) return;
if (!caches) caches = this.options.caches;
if (!caches) return;
caches.forEach(function (cacheName) {
if (_this2.detectors[cacheName] && _this2.detectors[cacheName].cacheUserLanguage && res.cachedUserLanguage !== lng) {
_this2.detectors[cacheName].cacheUserLanguage(req, res, lng, _this2.options);
res.cachedUserLanguage = lng;
}
});
}
}]);
}();
LanguageDetector.type = 'languageDetector';
var _default = exports.default = LanguageDetector;
module.exports = exports.default;