100 lines
2.4 KiB
JavaScript
100 lines
2.4 KiB
JavaScript
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import storage from "./storage";
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import { fetchPolyfill } from "./fetch";
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import { matchValue, type } from "./utils";
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import {
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STOKEY_RULESCACHE_PREFIX,
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GLOBAL_KEY,
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OPT_TRANS_ALL,
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OPT_STYLE_ALL,
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OPT_LANGS_FROM,
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OPT_LANGS_TO,
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} from "../config";
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const fromLangs = OPT_LANGS_FROM.map((item) => item[0]);
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const toLangs = OPT_LANGS_TO.map((item) => item[0]);
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/**
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* 检查过滤rules
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* @param {*} rules
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* @returns
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*/
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export const checkRules = (rules) => {
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if (type(rules) === "string") {
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rules = JSON.parse(rules);
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}
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if (type(rules) !== "array") {
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throw new Error("data error");
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}
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const patternSet = new Set();
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rules = rules
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.filter((rule) => type(rule) === "object")
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.filter(({ pattern }) => {
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if (type(pattern) !== "string" || patternSet.has(pattern.trim())) {
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return false;
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}
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patternSet.add(pattern.trim());
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return true;
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})
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.map(
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({
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pattern,
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selector,
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translator,
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fromLang,
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toLang,
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textStyle,
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transOpen,
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bgColor,
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}) => ({
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pattern: pattern.trim(),
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selector: type(selector) === "string" ? selector : "",
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bgColor: type(bgColor) === "string" ? bgColor : "",
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translator: matchValue([GLOBAL_KEY, ...OPT_TRANS_ALL], translator),
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fromLang: matchValue([GLOBAL_KEY, ...fromLangs], fromLang),
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toLang: matchValue([GLOBAL_KEY, ...toLangs], toLang),
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textStyle: matchValue([GLOBAL_KEY, ...OPT_STYLE_ALL], textStyle),
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transOpen: matchValue([GLOBAL_KEY, "true", "false"], transOpen),
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})
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);
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return rules;
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};
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/**
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* 本地rules缓存
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*/
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export const rulesCache = {
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fetch: async (url) => {
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const res = await fetchPolyfill(url);
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const rules = checkRules(res).filter(
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(rule) => rule.pattern.replaceAll(GLOBAL_KEY, "") !== ""
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);
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return rules;
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},
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set: async (url, rules) => {
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await storage.setObj(`${STOKEY_RULESCACHE_PREFIX}${url}`, rules);
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},
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get: async (url) => {
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return await storage.getObj(`${STOKEY_RULESCACHE_PREFIX}${url}`);
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},
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del: async (url) => {
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await storage.del(`${STOKEY_RULESCACHE_PREFIX}${url}`);
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},
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};
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/**
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* 从缓存或远程加载订阅的rules
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* @param {*} url
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* @returns
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*/
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export const tryLoadRules = async (url) => {
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let rules = await rulesCache.get(url);
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if (rules?.length) {
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return rules;
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}
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rules = await rulesCache.fetch(url);
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await rulesCache.set(url, rules);
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return rules;
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};
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