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LocalCDN: Webresource manager to request and cache web resources, aiming to make web requests faster and more reliable.
بۇ قوليازمىنى بىۋاسىتە قاچىلاشقا بولمايدۇ. بۇ باشقا قوليازمىلارنىڭ ئىشلىتىشى ئۈچۈن تەمىنلەنگەن ئامبار بولۇپ، ئىشلىتىش ئۈچۈن مېتا كۆرسەتمىسىگە قىستۇرىدىغان كود: // @require https://update.greasyfork.org/scripts/449580/1081620/LocalCDN.js
/* eslint-disable no-multi-spaces */
// ==UserScript==
// @name LocalCDN
// @namespace LocalCDN
// @version 0.1.1
// @description LocalCDN: Webresource manager to request and cache web resources, aiming to make web requests faster and more reliable.
// @author PY-DNG
// @license GPL-v3
// @grant none
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_xmlhttpRequest
// ==/UserScript==
// Loads web resources and saves them to GM-storage
// Tries to load web resources from GM-storage in subsequent calls
// Updates resources every $(this.expire) hours, or use $(this.refresh) function to update all resources instantly
// Dependencies: GM_getValue(), GM_setValue(), requestText(), AsyncManager()
function LocalCDN(expire=72) {
// Arguments: level=LogLevel.Info, logContent, asObject=false
// Needs one call "DoLog();" to get it initialized before using it!
function DoLog() {
// Get window
const win = (typeof(unsafeWindow) === 'object' && unsafeWindow !== null) ? unsafeWindow : window;
// Global log levels set
win.LogLevel = {
None: 0,
Error: 1,
Success: 2,
Warning: 3,
Info: 4,
}
win.LogLevelMap = {};
win.LogLevelMap[LogLevel.None] = {
prefix: '',
color: 'color:#ffffff'
}
win.LogLevelMap[LogLevel.Error] = {
prefix: '[Error]',
color: 'color:#ff0000'
}
win.LogLevelMap[LogLevel.Success] = {
prefix: '[Success]',
color: 'color:#00aa00'
}
win.LogLevelMap[LogLevel.Warning] = {
prefix: '[Warning]',
color: 'color:#ffa500'
}
win.LogLevelMap[LogLevel.Info] = {
prefix: '[Info]',
color: 'color:#888888'
}
win.LogLevelMap[LogLevel.Elements] = {
prefix: '[Elements]',
color: 'color:#000000'
}
// Current log level
DoLog.logLevel = win.isPY_DNG ? LogLevel.Info : LogLevel.Warning; // Info Warning Success Error
// Log counter
DoLog.logCount === undefined && (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;
}
}
if (++DoLog.logCount > 512) {
console.clear();
DoLog.logCount = 0;
}
console.log(msg, subst, logContent);
}
}
DoLog();
const LC = this;
const _GM_getValue = GM_getValue;
const _GM_setValue = GM_setValue;
const KEY_LOCALCDN = 'LOCAL-CDN';
const KEY_LOCALCDN_VERSION = 'version';
const VALUE_LOCALCDN_VERSION = '0.3';
// Default expire time (by hour)
LC.expire = expire;
// Try to get resource content from loaclCDN first, if failed/timeout, request from web && save to LocalCDN
// Accepts callback only: onload & onfail(optional)
// Returns true if got from LocalCDN, false if got from web
LC.get = function(url, onload, args=[], onfail=function(){}) {
const CDN = _GM_getValue(KEY_LOCALCDN, {});
const resource = CDN[url];
const time = (new Date()).getTime();
if (resource && resource.content !== null && !expired(time, resource.time)) {
onload.apply(null, [resource.content].concat(args));
return true;
} else {
LC.request(url, _onload, [], onfail);
return false;
}
function _onload(content) {
onload.apply(null, [content].concat(args));
}
}
// Generate resource obj and set to CDN[url]
// Returns resource obj
// Provide content means load success, provide null as content means load failed
LC.set = function(url, content) {
const CDN = _GM_getValue(KEY_LOCALCDN, {});
const time = (new Date()).getTime();
const resource = {
url: url,
time: time,
content: content,
success: content !== null ? (CDN[url] ? CDN[url].success + 1 : 1) : (CDN[url] ? CDN[url].success : 0),
fail: content === null ? (CDN[url] ? CDN[url].fail + 1 : 1) : (CDN[url] ? CDN[url].fail : 0),
};
CDN[url] = resource;
_GM_setValue(KEY_LOCALCDN, CDN);
return resource;
}
// Delete one resource from LocalCDN
LC.delete = function(url) {
const CDN = _GM_getValue(KEY_LOCALCDN, {});
if (!CDN[url]) {
return false;
} else {
delete CDN[url];
_GM_setValue(KEY_LOCALCDN, CDN);
return true;
}
}
// Delete all resources in LocalCDN
LC.clear = function() {
_GM_setValue(KEY_LOCALCDN, {});
upgradeConfig();
}
// List all resource saved in LocalCDN
LC.list = function() {
const CDN = _GM_getValue(KEY_LOCALCDN, {});
const urls = LC.listurls();
return LC.listurls().map((url) => (CDN[url]));
}
// List all resource's url saved in LocalCDN
LC.listurls = function() {
return Object.keys(_GM_getValue(KEY_LOCALCDN, {})).filter((url) => (url !== KEY_LOCALCDN_VERSION));
}
// Request content from web and save it to CDN[url]
// Accepts callbacks only: onload & onfail(optional)
LC.request = function(url, onload, args=[], onfail=function(){}) {
const CDN = _GM_getValue(KEY_LOCALCDN, {});
requestText(url, _onload, [], _onfail);
function _onload(content) {
LC.set(url, content);
onload.apply(null, [content].concat(args));
}
function _onfail() {
LC.set(url, null);
onfail(url);
}
}
// Re-request all resources in CDN instantly, ignoring LC.expire
LC.refresh = function(callback, args=[]) {
const urls = LC.listurls();
const AM = new AsyncManager();
AM.onfinish = function() {
callback.apply(null, [].concat(args))
};
for (const url of urls) {
AM.add();
LC.request(url, function() {
AM.finish();
});
}
AM.finishEvent = true;
}
// Sort src && srcset, to get a best request sorting
LC.sort = function(srcset) {
const CDN = _GM_getValue(KEY_LOCALCDN, {});
const result = {srclist: [], lists: []};
const lists = result.lists;
const srclist = result.srclist;
const suc_rec = lists[0] = []; // Recent successes take second (not expired yet)
const suc_old = lists[1] = []; // Old successes take third
const fails = lists[2] = []; // Fails & unused take the last place
const time = (new Date()).getTime();
// Make lists
for (const s of srcset) {
const resource = CDN[s];
if (resource && resource.content !== null) {
if (!expired(resource.time, time)) {
suc_rec.push(s);
} else {
suc_old.push(s);
}
} else {
fails.push(s);
}
}
// Sort lists
// Recently successed: Choose most recent ones
suc_rec.sort((res1, res2) => (res2.time - res1.time));
// Successed long ago or failed: Sort by success rate & tried time
[suc_old, fails].forEach((arr) => (arr.sort(sorting)));
// Push all resources into seclist
[suc_rec, suc_old, fails].forEach((arr) => (arr.forEach((res) => (srclist.push(res)))));
return result;
function sorting(res1, res2) {
const sucRate1 = (res1.success+1) / (res1.fail+1);
const sucRate2 = (res2.success+1) / (res2.fail+1);
if (sucRate1 !== sucRate2) {
// Success rate: high to low
return sucRate2 - sucRate1;
} else {
// Tried time: less to more
// Less tried time means newer added source
return (res1.success+res1.fail) - (res2.success+res2.fail);
}
}
}
function upgradeConfig() {
const CDN = _GM_getValue(KEY_LOCALCDN, {});
switch(CDN[KEY_LOCALCDN_VERSION]) {
case undefined:
init();
break;
case '0.1':
v01_To_v02();
logUpgrade();
break;
case '0.2':
v01_To_v02();
v02_To_v03();
logUpgrade();
break;
case VALUE_LOCALCDN_VERSION:
DoLog('LocalCDN is in latest version.');
break;
default:
DoLog(LogLevel.Error, 'LocalCDN.upgradeConfig: Invalid config version({V}) for LocalCDN. '.replace('{V}', CDN[KEY_LOCALCDN_VERSION]));
}
CDN[KEY_LOCALCDN_VERSION] = VALUE_LOCALCDN_VERSION;
_GM_setValue(KEY_LOCALCDN, CDN);
function logUpgrade() {
DoLog(LogLevel.Success, 'LocalCDN successfully upgraded From v{V1} to v{V2}. '.replaceAll('{V1}', CDN[KEY_LOCALCDN_VERSION]).replaceAll('{V2}', VALUE_LOCALCDN_VERSION));
}
function init() {
// Nothing to do here
}
function v01_To_v02() {
const urls = LC.listurls();
for (const url of urls) {
if (url === KEY_LOCALCDN_VERSION) {continue;}
CDN[url] = {
url: url,
time: 0,
content: CDN[url]
};
}
}
function v02_To_v03() {
const urls = LC.listurls();
for (const url of urls) {
CDN[url].success = CDN[url].fail = 0;
}
}
}
function clearExpired() {
const resources = LC.list();
const time = (new Date()).getTime();
for (const resource of resources) {
expired(resource.time, time) && LC.delete(resource.url);
}
}
function expired(t1, t2) {
return (t1 - t2) > (LC.expire * 60 * 60 * 1000);
}
upgradeConfig();
clearExpired();
function requestText(url, callback, args=[], onfail=function(){}) {
GM_xmlhttpRequest({
method: 'GET',
url: url,
responseType: 'text',
timeout: 45*1000,
onload: function(response) {
const text = response.responseText;
const argvs = [text].concat(args);
callback.apply(null, argvs);
},
onerror: onfail,
ontimeout: onfail,
onabort: onfail,
})
}
function AsyncManager() {
const AM = this;
// Ongoing xhr count
this.taskCount = 0;
// Whether generate finish events
let finishEvent = false;
Object.defineProperty(this, 'finishEvent', {
configurable: true,
enumerable: true,
get: () => (finishEvent),
set: (b) => {
finishEvent = b;
b && AM.taskCount === 0 && AM.onfinish && AM.onfinish();
}
});
// Add one task
this.add = () => (++AM.taskCount);
// Finish one task
this.finish = () => ((--AM.taskCount === 0 && AM.finishEvent && AM.onfinish && AM.onfinish(), AM.taskCount));
}
}