Converts Javascript links that open new windows into regular old links
// ==UserScript==
// @name Javascript Link Fixer
// @namespace DoomTay
// @description Converts Javascript links that open new windows into regular old links
// @include *
// @version 1.2.5
// @grant none
// ==/UserScript==
var links = document.querySelectorAll("[href *= 'javascript:'],a[onclick]");
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) != ";")
{
var hrefSplitter = /javascript:(\S+)\((\S+(?:,(?: )\S+)*)?\)/.exec(links[l].href);
if(hrefSplitter != null)
{
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");
if(functionDig.indexOf("/") == 0 && window.location.href.indexOf("archive.org/web") > -1 && functionDig.indexOf("/web") != 0)
{
links[l].href = window.location.href.substring(0,window.location.href.indexOf("/",window.location.href.lastIndexOf("//") + 2)) + functionDig;
}
else links[l].href = functionDig;
continue;
}
}
}
if(links[l].getAttribute("onclick"))
{
if(links[l].getAttribute("onclick").indexOf("void") > -1) continue;
if(links[l].getAttribute("onclick").substring(11) != "" && links[l].getAttribute("onclick").substring(11) != ";")
{
var funcSplitter = /(\S+)\(([^;]+)\)/.exec(links[l].getAttribute("onclick"));
if(funcSplitter != null)
{
var functionName = decodeURIComponent(funcSplitter[1]).trim();
var params = funcSplitter[2] ? eval("[" + decodeURIComponent(funcSplitter[2]) + "]") : [];
if(links[l].getAttribute("csclick"))
{
if(CSAct[params][1].indexOf("/") == 0 && window.location.href.indexOf("archive.org/web") > -1 && CSAct[params][1].indexOf("/web") != 0)
{
links[l].href = window.location.href.substring(0,window.location.href.indexOf("/",window.location.href.lastIndexOf("//") + 2)) + CSAct[params][1];
}
else links[l].href = CSAct[params][1];
continue;
}
var functionDig = deconstructFunction(functionName,params);
if(functionDig != null)
{
if(functionDig.indexOf("/") == 0 && window.location.href.indexOf("archive.org/web") > -1 && functionDig.indexOf("/web") != 0)
{
links[l].href = window.location.href.substring(0,window.location.href.indexOf("/",window.location.href.lastIndexOf("//") + 2)) + functionDig;
}
else links[l].href = functionDig;
continue;
}
}
}
}
}
function deconstructFunction(functionName,params)
{
if(functionName == "history.go") return null;
if(functionName == "window.close") 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");
if(functionBody.indexOf("for") > -1) return null;
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);
for(var a = 0; a < params.length; a++)
{
eval(args[a] + "= \"" + params[a] + "\"");
}
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(ifCollection != null && ifCollection.some(elem => elem.indexOf(variableMatches[m]) > -1)) continue;
if(/.+\(/.test(variableMatches[m]) && variableMatches[m].indexOf("eval(") == -1) continue;
var varSplitter = /(?!["'=><!])? ?[+\-*\/]?= ?(?!["'=><!])/;
var splitVars = [variableMatches[m].substring(0,variableMatches[m].search(varSplitter)).trim(),variableMatches[m].substring(variableMatches[m].search(varSplitter) + 2).trim()];
//Making sure we're not altering any properties
if(splitVars[0].indexOf(".location") > -1 || /location(?:.href)? ?= ? (?!yes|no)/.test(variableMatches[m])) return eval(splitVars[1]);
else if(splitVars[0].indexOf(".") == -1) eval(variableMatches[m]);
}
}
if(ifCollection)
{
for(var i = 0; i < ifCollection.length; i++)
{
eval(ifCollection[i]);
}
}
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.includes(".location = "))
{
var test = /\.location ?= ?(\S+);/.exec(functionBody)[1];
for(var p = 0; p < params.length; p++)
{
if(test == args[p]) return params[p];
}
}
return null;
}