Javascript Link Fixer

Converts Javascript links that open new windows into regular old links
Verze ze dne 30. 01. 2016. Zobrazit nejnovější verzi.
Zeptejte se na otázku, přidejte recenzi nebo skript nahlašte.
Wrap lines
// ==UserScript==
// @name          Javascript Link Fixer
// @namespace     DoomTay
// @description   Converts Javascript links that open new windows into regular old links
// @version       1.2.3
// @grant         none

// ==/UserScript==

var links = document.querySelectorAll("[href *= 'javascript:']");

var paramTable = {};
	paramTable["open"] = 0;
	paramTable["window.open"] = 0;

for (var l = 0; l < links.length; l++)
{
	if(links[l].href == undefined) continue;
	if(links[l].href.indexOf("void") > -1) continue;
	if(links[l].href.substring(11) == "" || links[l].href.substring(11) == ";") continue;
	var hrefSplitter = /javascript:(\S+)\((\S+(?:,(?: )\S+)*)?\)/.exec(links[l].href);
	if(hrefSplitter == null) continue;
	var functionName = decodeURIComponent(hrefSplitter[1]).trim();
	var params = hrefSplitter[2] ? eval("[" + decodeURIComponent(hrefSplitter[2]) + "]") : [];
	var functionDig = deconstructFunction(functionName,params);
	if(functionDig != null)
	{
		links[l].setAttribute("onclick",decodeURIComponent(links[l].href).substring(links[l].href.indexOf("javascript:") + 11) + "; return false");
		links[l].href = functionDig;
	}
}

function deconstructFunction(functionName,params)
{
	if(functionName == "history.go") return null;
	var sourceCode = uneval(window[functionName]);
	var functionBody = sourceCode.substring(sourceCode.indexOf("{") + 1,sourceCode.lastIndexOf("}")).trim();
	while(functionBody.indexOf(functionName + ".arguments") > -1) functionBody = functionBody.replace(functionName + ".arguments","params");
	var args = /\(((?: )?\S+(?:,(?: )\S+)*)?(?: )?\)/.exec(sourceCode);
	args = args && args[1] ? args[1].split(/\s*,\s*/) : [];
	var containedFunctions = functionBody.match(/(\S+\(\S+(?:,(?: )?\S+)*\))/g) || [];
	var ifCollection = functionBody.match(/if ?\([a-zA-z '?=+&.<>!()0-9;]+\)[ \n\t]+?{[\s\S][\na-zA-z '?=+.,">\/()0-9;!@#$%^&*\t]+[\s]+}/g);
	var variableMatches = functionBody.match(/(\S+ ?= ?.+)/g);
	var variableDefs = [];
	if(variableMatches)
	{
		for(var m = 0; m < variableMatches.length; m++)
		{
			if(variableMatches[m].indexOf("==") > -1 || variableMatches[m].indexOf("!=") > -1 || variableMatches[m].indexOf("//") > -1 || variableMatches[m].indexOf(">=") > -1 || variableMatches[m].indexOf("<=") > -1) continue;
			if(containedFunctions != null && containedFunctions.some(elem => variableMatches[m].substring(variableMatches[m].indexOf("=") + 1).trim().indexOf(elem) > -1)) continue;
			if(/.+\(/.test(variableMatches[m]) && variableMatches[m].indexOf("eval(") == -1) continue;
			if(variableMatches[m].indexOf("+=") > -1) continue;
			variableDefs.push(variableMatches[m].match(/(\S+) ?= ?(.+?;)/).slice(1, 3));
		}
	}

	for(var a = 0; a < params.length; a++)
	{
		eval(args[a] + "= \"" + params[a] + "\"");
	}

	if(variableDefs)
	{
		for(var v = 0; v < variableDefs.length; v++)
		{
			//Making sure we're not altering any properties
			if(variableDefs[v][0].indexOf(".") == -1)
			{
				if(variableDefs[v][1].indexOf("eval(") > -1) variableDefs[v][1] = variableDefs[v][1].replace(/eval\((.+)\)/,"$1");
				console.log("Evaling",variableDefs[v]);
				if(variableDefs[v][0] == "location" || variableDefs[v][0].indexOf("window.location")) continue;
				eval(variableDefs[v][0] + "= " + variableDefs[v][1].toString());
			}
		}
	}
	if(ifCollection)
	{
		for(var i = 0; i < ifCollection.length; i++)
		{
			eval(ifCollection[i]);
		}
	}
	if(variableDefs)
	{
		for(var v = 0; v < variableDefs.length; v++)
		{
			if(variableDefs[v][0].indexOf(".location") > -1)
			{
				return eval(variableDefs[v][1]);
			}
		}
	}
	if(containedFunctions)
	{
		for(var f = 0; f < containedFunctions.length; f++)
		{
			var capture = /(\S+)\((\S+(?:,(?: )?\S+)*)?\);?/.exec(containedFunctions[f]);
			var statementName = capture[1];
			if(statementName == "if") continue;
			var statementParams = capture[2];
			statementParams = eval("[" + statementParams + "]");
			if(paramTable.hasOwnProperty(statementName)) return(statementParams[paramTable[statementName]]);
			var digDeeper = deconstructFunction(statementName,statementParams);
			if(digDeeper) return digDeeper;
		}
	}
	if(functionBody.indexOf(".location = ") > -1)
	{
		var test = /\.location ?= ?(\S+);/.exec(functionBody)[1];
		for(var p = 0; p < params.length; p++)
		{
			if(test == args[p]) return params[p];
		}
	}
	return null;
}