Check update for Greasyfork userscript
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/431490/1080054/GreasyForkScriptUpdate.js
/* eslint-disable no-multi-spaces */
// ==UserScript==
// @name GreasyForkScriptUpdate
// @namespace GreasyForkScriptUpdate
// @version 0.4.2
// @description Check update for Greasyfork userscript
// @author PY-DNG
// @match http*://*/*
// @icon data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant GM_xmlhttpRequest
// @grant unsafeWindow
// ==/UserScript==
(function () {
'use strict';
// Accessable in Global_Scope
typeof(unsafeWindow) !== 'object' && (window.unsafeWindow = window);
unsafeWindow.GreasyForkUpdater = GreasyForkUpdater;
// Use 'new' keyword
function GreasyForkUpdater(metarule=null) {
const GFU = this;
const singles = metarule ? metarule.singles : [];
const multiples = metarule ? metarule.multiples : [];
// Parse '// ==UserScript==\n...\n// ==/UserScript==' to {name: '', namespace: '', version: '', ...}
// Returns metaData object directly
GFU.parseMetaData = function(metaText) {
const metaData = {};
const lines = metaText.split('\n');
const edgeMatcher = /==\/?UserScript==/i;
const keyValueMatcher = /^\/\/ *@([^@ ]+) +(.+) *$/;
const keyOnlyMatcher = /^\/\/ *@([^@ ]+) *$/;
for (let line of lines) {
// Get & validate line
line = line.trim();
if (line.match(edgeMatcher)) {continue;};
if (!line.match(keyValueMatcher) && !line.match(keyOnlyMatcher)) {continue;};
// Get key-value
const match = line.match(keyValueMatcher) ? line.match(keyValueMatcher) : line.match(keyOnlyMatcher);
const key = match[1];
const value = match[2] ? match[2] : true;
// Attach to metaData object
if (singles.includes(key)) {
// Single value metaitem: stores only the first value
if (!metaData.hasOwnProperty(key)) {
metaData[key] = value;
}
} else if (multiples.includes(key)) {
// Multiple value metaitem: always stores all values in an array whether provided value are multiple or not
if (!metaData.hasOwnProperty(key)) {
metaData[key] = [value];
} else {
metaData[key].push(value);
}
} else {
// Unspecificed metaitem: stores single-provided values directly and multiple-provided values in arrays
if (!metaData.hasOwnProperty(key)) {
metaData[key] = value;
} else {
if (Array.isArray(metaData[key])) {
metaData[key].push(value);
} else {
metaData[key] = [metaData[key], value];
}
}
}
}
return metaData;
}
// Request latest script meta text from greasyfork
// You'll get metaText string as the first argument in your callback function
GFU.requestMetaText = function(scriptID, callback, args=[]) {
if (!scriptID) {return false;};
const url = 'https://greasyfork.org/scripts/{SID}/code/script.meta.js'.replace('{SID}', String(scriptID));
GM_xmlhttpRequest({
method: 'GET',
url: url,
responseType: 'text',
onload: function(e) {
callback && callback.apply(null, [e.responseText].concat(args));
}
})
}
// Request & parse latest script meta data from greasyfork
// You'll get metaData object as the first argument in your callback function
GFU.getMetaData = function(scriptID, callback, args=[]) {
if (!scriptID) {return false;};
GFU.requestMetaText(scriptID, function(metaText) {
const metaData = GFU.parseMetaData(metaText);
callback && callback.apply(null, [metaData].concat(args));
})
}
// Compare two version texts(v1, v2), returns true if v1 > v2
// Returns null while version text contains Non-demical text period(s)
GFU.versionNewer = function(v1, v2) {
v1 = v1.trim().split('.');
v2 = v2.trim().split('.');
for (let i = 0; i < Math.min(v1.length, v2.length); i++) {
v1[i] = Number(v1[i]);
v2[i] = Number(v2[i]);
if (!v1[i] || !v2[i]) {return null;};
if (v1[i] !== v2[i]) {return v1[i] > v2[i];};
}
return v1.length > v2.length;
}
// Check if there's new version of the script on GreasyFork using scriptID, current version text
// You'll get update(bool), updateurl(string), metaData(object) as the first, second and third argument in your callback function
GFU.checkUpdate = function(scriptID, curver, callback, args=[]) {
if (!scriptID) {return false;};
GFU.getMetaData(scriptID, function(metaData) {
const update = GFU.versionNewer(metaData.version, curver);
const updateurl = 'https://greasyfork.org/scripts/{SID}/code/script.user.js'.replace('{SID}', String(scriptID));
callback && callback.apply(null, [update, updateurl, metaData].concat(args));
})
}
// Check & Install update automatically
GFU.update = function(scriptID, curver) {
GFU.checkUpdate(scriptID, curver, function() {
const url = 'https://greasyfork.org/scripts/{SID}/code/script.user.js'.replace('{SID}', String(scriptID));
location.href = url;
})
}
}
})();