hfs
Version:
HTTP File Server
86 lines (85 loc) • 3.52 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.code2file = code2file;
exports.file2code = file2code;
exports.getLangData = getLangData;
const misc_1 = require("./misc");
const expiringCache_1 = require("./expiringCache");
const promises_1 = require("fs/promises");
const config_1 = require("./config");
const watchLoad_1 = require("./watchLoad");
const embedded_1 = __importDefault(require("./langs/embedded"));
const plugins_1 = require("./plugins");
const path_1 = require("path");
const lodash_1 = __importDefault(require("lodash"));
const PREFIX = 'hfs-lang-';
const SUFFIX = '.json';
const EMBEDDED_LANGUAGE = 'en';
function code2file(code) {
return PREFIX + code.toLowerCase() + SUFFIX;
}
function file2code(fn) {
return fn.replace(PREFIX, '').replace(SUFFIX, '');
}
const cache = (0, expiringCache_1.expiringCache)(3000); // 3 seconds for both a good dx and acceptable performance
async function getLangData(ctxOrLangCsv) {
if (typeof ctxOrLangCsv !== 'string') {
const ctx = ctxOrLangCsv;
const param = String(ctx.query.lang || '');
if (!param && forceLangData)
return forceLangData;
ctxOrLangCsv = param || ctx.get('Accept-Language') || '';
}
const csv = ctxOrLangCsv.toLowerCase();
return cache.try(csv, async () => {
var _a;
const langs = csv.split(',');
const ret = {};
let i = 0;
while (i < langs.length) {
let k = langs[i] || ''; // shut up ts
if (!k || k === EMBEDDED_LANGUAGE)
break;
const fn = code2file(k);
try {
ret[k] = JSON.parse(await (0, promises_1.readFile)(fn, 'utf8'));
} // allow external files to override embedded translations
catch (_b) {
if ((0, misc_1.hasProp)(embedded_1.default, k))
ret[k] = lodash_1.default.cloneDeep(embedded_1.default[k]);
else {
do {
k = k.substring(0, k.lastIndexOf('-'));
} while (k && langs.includes(k));
if (k) {
langs[i] = k; // overwrite and retry
continue;
}
}
}
const fromPlugins = (0, misc_1.onlyTruthy)(await Promise.all((0, plugins_1.mapPlugins)(async (pl) => { var _a; return (_a = (0, misc_1.tryJson)(await (0, promises_1.readFile)((0, path_1.join)(pl.folder, fn), 'utf8').catch(() => ''))) === null || _a === void 0 ? void 0 : _a.translate; })));
if (fromPlugins.length)
lodash_1.default.defaults((_a = (ret[k] || (ret[k] = {}))).translate || (_a.translate = {}), ...fromPlugins); // be sure we have an entry for k
i++;
}
return ret;
});
}
let forceLangData;
let undo;
(0, config_1.defineConfig)(misc_1.CFG.force_lang, '', v => {
undo === null || undo === void 0 ? void 0 : undo();
if (!v)
return forceLangData = undefined;
const translation = embedded_1.default[v];
forceLangData = { [v]: translation };
if (v === EMBEDDED_LANGUAGE)
return;
const res = (0, watchLoad_1.watchLoad)(code2file(v), data => {
forceLangData = { [v]: (0, misc_1.tryJson)(data) || translation };
});
undo = res.unwatch;
});