98 lines
2.7 KiB
JavaScript
98 lines
2.7 KiB
JavaScript
import { fetchGM } from "./fetch";
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/**
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* 注入页面的脚本，请求并接受GM接口信息
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* @param {*} param0
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*/
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export const injectScript = (ping) => {
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const MSG_GM_xmlHttpRequest = "xmlHttpRequest";
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const MSG_GM_setValue = "setValue";
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const MSG_GM_getValue = "getValue";
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const MSG_GM_deleteValue = "deleteValue";
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const MSG_GM_info = "info";
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let GM_info;
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const promiseGM = (action, args, timeout = 5000) =>
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new Promise((resolve, reject) => {
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const pong = btoa(Math.random()).slice(3, 11);
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const handleEvent = (e) => {
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window.removeEventListener(pong, handleEvent);
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const { data, error } = e.detail;
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if (error) {
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reject(new Error(error));
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} else {
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resolve(data);
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}
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};
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window.addEventListener(pong, handleEvent);
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window.dispatchEvent(
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new CustomEvent(ping, { detail: { action, args, pong } })
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);
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setTimeout(() => {
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window.removeEventListener(pong, handleEvent);
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reject(new Error("timeout"));
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}, timeout);
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});
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window.KISS_GM = {
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fetch: (input, init) => promiseGM(MSG_GM_xmlHttpRequest, { input, init }),
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setValue: (key, val) => promiseGM(MSG_GM_setValue, { key, val }),
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getValue: (key) => promiseGM(MSG_GM_getValue, { key }),
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deleteValue: (key) => promiseGM(MSG_GM_deleteValue, { key }),
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getInfo: () => {
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if (GM_info) {
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return GM_info;
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}
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return promiseGM(MSG_GM_info);
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},
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};
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window.APP_NAME = process.env.REACT_APP_NAME;
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};
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/**
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* 监听并回应页面对GM接口的请求
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* @param {*} param0
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*/
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export const handlePing = async (e) => {
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const MSG_GM_xmlHttpRequest = "xmlHttpRequest";
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const MSG_GM_setValue = "setValue";
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const MSG_GM_getValue = "getValue";
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const MSG_GM_deleteValue = "deleteValue";
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const MSG_GM_info = "info";
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const { action, args, pong } = e.detail;
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let res;
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try {
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switch (action) {
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case MSG_GM_xmlHttpRequest:
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const { input, init } = args;
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res = await fetchGM(input, init);
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break;
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case MSG_GM_setValue:
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const { key, val } = args;
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await GM.setValue(key, val);
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res = val;
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break;
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case MSG_GM_getValue:
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res = await GM.getValue(args.key);
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break;
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case MSG_GM_deleteValue:
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await GM.deleteValue(args.key);
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res = "ok";
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break;
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case MSG_GM_info:
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res = GM.info;
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break;
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default:
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throw new Error(`message action is unavailable: ${action}`);
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}
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window.dispatchEvent(new CustomEvent(pong, { detail: { data: res } }));
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} catch (err) {
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window.dispatchEvent(
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new CustomEvent(pong, { detail: { error: err.message } })
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);
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}
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};
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