wenku8+ loader entry

load wenku8+ temporarily (entry)

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greasyfork.org/scripts/437462/1001414/wenku8%2B%20loader%20entry.js

(function () {
	const KEY_LOCALCDN = 'LOCAL-CDN';
	const KEY_LOCALCDN_VERSION = 'version';
	const VALUE_LOCALCDN_VERSION = '0.1';
	const KEY_POLYFILL = 'wenku8-plus-injecter';
	GM_PolyFill(KEY_POLYFILL);
	DoLog();
	const loader_url = 'https://greasyfork.org/scripts/437461/code/script.js';

	const a = document.querySelector('a[href="#wenkuplus"]');
	a.setAttribute('tiptitle', '点击这里即可运行脚本,关闭浏览器后脚本就会自动消失');
	a.addEventListener('click', function(e) {
		destroyEvent(e);
		!window.wenku8plus_loader_loaded && confirm('是否运行 [轻小说文库8+]?') && loadJSPlus(loader_url, function(success) {
            if (success) {
                DoLog(['wenku8+ loader loaded']);
                window.wenku8plus_loader_loaded = true;
                a.setAttribute('tiptitle', '[轻小说文库8+]已经在运行啦!点击这里打开文库首页,开始浏览文库8~');
                a.href = 'https://www.wenku8.net/index.php';
            } else {
                DoLog(['wenku8+ loader load failed on', oDom]);
            }
        });
	});

	// Just stopPropagation and preventDefault
	function destroyEvent(e) {
		if (!e) {return false;};
		if (!e instanceof Event) {return false;};
		e.stopPropagation();
		e.preventDefault();
	}

	// Load/Read and Save javascript from given url
	// Auto reties when xhr fails.
	// If load success then callback(true), else callback(false)
	function loadJSPlus(url, callback, oDoc = document, maxRetry = 3, retried = 0) {
		const fn = callback || function () {};
		const localCDN = GM_getValue(KEY_LOCALCDN, {});
		if (localCDN[url]) {
			DoLog(LogLevel.Info, 'Loading js from localCDN: ' + url);
			const js = localCDN[url];
			appendScript(js);
			fn(true);
			return;
		}
		DoLog(LogLevel.Info, 'Loading js from web: ' + url);
		GM_xmlhttpRequest({
			method: 'GET',
			url: url,
			responseType: 'text',
			onload: function (e) {
					if (e.status === 200) {
						const js = e.responseText;
						localCDN[url] = js;
						localCDN[KEY_LOCALCDN_VERSION] = VALUE_LOCALCDN_VERSION;
						GM_setValue(KEY_LOCALCDN, localCDN);
						appendScript(js);
						fn(true);
					} else {
						retry();
					}
				},
				onerror: retry
		})

		function appendScript(code) {
			const script = oDoc.createElement('script');
			script.type = 'text/javascript';
			script.innerHTML = code;
			oDoc.head.appendChild(script);
		}

		function retry() {
			retried++;
			if (retried <= maxRetry) {
				loadJSPlus(url, callback, oDoc, maxRetry, retried);
			} else {
				fn(false);
			}
		}
	}

	// GM_Polyfill By PY-DNG
	// 2021.07.18
	// Simply provides the following GM_functions using localStorage, XMLHttpRequest and window.open:
	// Returns object GM_POLYFILLED which has the following properties that shows you which GM_functions are actually polyfilled:
	// GM_setValue, GM_getValue, GM_deleteValue, GM_listValues, GM_xmlhttpRequest, GM_openInTab, GM_setClipboard
	function GM_PolyFill(name = 'default') {
		const GM_POLYFILL_KEY_STORAGE = 'GM_STORAGE_POLYFILL';
		const GM_POLYFILL_storage = GM_POLYFILL_getStorage();
		const GM_POLYFILLED = {
			GM_setValue: true,
			GM_getValue: true,
			GM_deleteValue: true,
			GM_listValues: true,
			GM_xmlhttpRequest: true,
			GM_openInTab: true,
			GM_setClipboard: true,
		};
		GM_setValue_polyfill();
		GM_getValue_polyfill();
		GM_deleteValue_polyfill();
		GM_listValues_polyfill();
		GM_xmlhttpRequest_polyfill();
		GM_openInTab_polyfill();
		GM_setClipboard_polyfill();

		function GM_POLYFILL_getStorage() {
			let gstorage = localStorage.getItem(GM_POLYFILL_KEY_STORAGE);
			gstorage = gstorage ? JSON.parse(gstorage) : {};
			let storage = gstorage[name] ? gstorage[name] : {};
			return storage;
		};

		function GM_POLYFILL_saveStorage() {
			let gstorage = localStorage.getItem(GM_POLYFILL_KEY_STORAGE);
			gstorage = gstorage ? JSON.parse(gstorage) : {};
			gstorage[name] = GM_POLYFILL_storage;
			localStorage.setItem(GM_POLYFILL_KEY_STORAGE, JSON.stringify(gstorage));
		};
		// GM_setValue
		function GM_setValue_polyfill() {
			typeof (GM_setValue) === 'function' ? GM_POLYFILLED.GM_setValue = false: window.GM_setValue = PF_GM_setValue;;

			function PF_GM_setValue(name, value) {
				name = String(name);
				GM_POLYFILL_storage[name] = value;
				GM_POLYFILL_saveStorage();
			};
		};
		// GM_getValue
		function GM_getValue_polyfill() {
			typeof (GM_getValue) === 'function' ? GM_POLYFILLED.GM_getValue = false: window.GM_getValue = PF_GM_getValue;

			function PF_GM_getValue(name, defaultValue) {
				name = String(name);
				if (GM_POLYFILL_storage.hasOwnProperty(name)) {
					return GM_POLYFILL_storage[name];
				} else {
					return defaultValue;
				};
			};
		};
		// GM_deleteValue
		function GM_deleteValue_polyfill() {
			typeof (GM_deleteValue) === 'function' ? GM_POLYFILLED.GM_deleteValue = false: window.GM_deleteValue = PF_GM_deleteValue;

			function PF_GM_deleteValue(name) {
				name = String(name);
				if (GM_POLYFILL_storage.hasOwnProperty(name)) {
					delete GM_POLYFILL_storage[name];
					GM_POLYFILL_saveStorage();
				};
			};
		};
		// GM_listValues
		function GM_listValues_polyfill() {
			typeof (GM_listValues) === 'function' ? GM_POLYFILLED.GM_listValues = false: window.GM_listValues = PF_GM_listValues;

			function PF_GM_listValues() {
				return Object.keys(GM_POLYFILL_storage);
			};
		};
		// GM_xmlhttpRequest
		// not supported properties of details: synchronous binary nocache revalidate context fetch
		// not supported properties of response(onload arguments[0]): finalUrl
		// ---!IMPORTANT!--- DOES NOT SUPPORT CROSS-ORIGIN REQUESTS!!!!! ---!IMPORTANT!---
		function GM_xmlhttpRequest_polyfill() {
			typeof (GM_xmlhttpRequest) === 'function' ? GM_POLYFILLED.GM_xmlhttpRequest = false: window.GM_xmlhttpRequest = PF_GM_xmlhttpRequest;
			// details.synchronous is not supported as Tempermonkey
			function PF_GM_xmlhttpRequest(details) {
				const xhr = new XMLHttpRequest();
				// open request
				const openArgs = [details.method, details.url, true];
				if (details.user && details.password) {
					openArgs.push(details.user);
					openArgs.push(details.password);
				}
				xhr.open.apply(xhr, openArgs);
				// set headers
				if (details.headers) {
					for (const key of Object.keys(details.headers)) {
						xhr.setRequestHeader(key, details.headers[key]);
					};
				};
				details.cookie ? xhr.setRequestHeader('cookie', details.cookie) : function () {};
				details.anonymous ? xhr.setRequestHeader('cookie', '') : function () {};
				// properties
				xhr.timeout = details.timeout;
				xhr.responseType = details.responseType;
				details.overrideMimeType ? xhr.overrideMimeType(details.overrideMimeType) : function () {};
				// events
				xhr.onabort = details.onabort;
				xhr.onerror = details.onerror;
				xhr.onloadstart = details.onloadstart;
				xhr.onprogress = details.onprogress;
				xhr.onreadystatechange = details.onreadystatechange;
				xhr.ontimeout = details.ontimeout;
				xhr.onload = function (e) {
					const response = {
						readyState: xhr.readyState,
						status: xhr.status,
						statusText: xhr.statusText,
						responseHeaders: xhr.getAllResponseHeaders(),
						response: xhr.response
					};
					(details.responseType === '' || details.responseType === 'text') ? (response.responseText = xhr.responseText) : function () {};
					(details.responseType === '' || details.responseType === 'document') ? (response.responseXML = xhr.responseXML) : function () {};
					details.onload(response);
				};
				// send request
				details.data ? xhr.send(details.data) : xhr.send();
				return {
					abort: xhr.abort
				};
			};
		};
		// NOTE: options(arg2) is NOT SUPPORTED! if provided, then will just be skipped.
		function GM_openInTab_polyfill() {
			typeof (GM_openInTab) === 'function' ? GM_POLYFILLED.GM_openInTab = false: window.GM_openInTab = PF_GM_openInTab;

			function PF_GM_openInTab(url) {
				window.open(url);
			};
		};
		// NOTE: needs to be called in an event handler function, and info(arg2) is NOT SUPPORTED!
		function GM_setClipboard_polyfill() {
			typeof (GM_setClipboard) === 'function' ? GM_POLYFILLED.GM_setClipboard = false: window.GM_setClipboard = PF_GM_setClipboard;

			function PF_GM_setClipboard(text) {
				// Create a new textarea for copying
				const newInput = document.createElement('textarea');
				document.body.appendChild(newInput);
				newInput.value = text;
				newInput.select();
				document.execCommand('copy');
				document.body.removeChild(newInput);
			};
		};
		return GM_POLYFILLED;
	};
	// Arguments: level=LogLevel.Info, logContent, asObject=false
	// Needs one call "DoLog();" to get it initialized before using it!
	function DoLog() {
		// Global log levels set
		window.LogLevel = {
			None: 0,
			Error: 1,
			Success: 2,
			Warning: 3,
			Info: 4,
		}
		window.LogLevelMap = {};
		window.LogLevelMap[LogLevel.None] = {
			prefix: '',
			color: 'color:#ffffff'
		}
		window.LogLevelMap[LogLevel.Error] = {
			prefix: '[Error]',
			color: 'color:#ff0000'
		}
		window.LogLevelMap[LogLevel.Success] = {
			prefix: '[Success]',
			color: 'color:#00aa00'
		}
		window.LogLevelMap[LogLevel.Warning] = {
			prefix: '[Warning]',
			color: 'color:#ffa500'
		}
		window.LogLevelMap[LogLevel.Info] = {
			prefix: '[Info]',
			color: 'color:#888888'
		}
		window.LogLevelMap[LogLevel.Elements] = {
				prefix: '[Elements]',
				color: 'color:#000000'
			}
			// Current log level
		DoLog.logLevel = window.isPY_DNG ? LogLevel.Info : LogLevel.Warning; // Info Warning Success Error
		// Log counter
		DoLog.logCount === undefined && (DoLog.logCount = 0);
		if (++DoLog.logCount > 512) {
			console.clear();
			DoLog.logCount = 0;
		}
		// Get args
		let level, logContent, asObject;
		switch (arguments.length) {
		case 1:
			level = LogLevel.Info;
			logContent = arguments[0];
			asObject = false;
			break;
		case 2:
			level = arguments[0];
			logContent = arguments[1];
			asObject = false;
			break;
		case 3:
			level = arguments[0];
			logContent = arguments[1];
			asObject = arguments[2];
			break;
		default:
			level = LogLevel.Info;
			logContent = 'DoLog initialized.';
			asObject = false;
			break;
		}
		// Log when log level permits
		if (level <= DoLog.logLevel) {
			let msg = '%c' + LogLevelMap[level].prefix;
			let subst = LogLevelMap[level].color;
			if (asObject) {
				msg += ' %o';
			} else {
				switch (typeof (logContent)) {
				case 'string':
					msg += ' %s';
					break;
				case 'number':
					msg += ' %d';
					break;
				case 'object':
					msg += ' %o';
					break;
				}
			}
			console.log(msg, subst, logContent);
		}
	}
})();