Add aquarius redirects
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Jonathan Hodgson
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1 changed files with 241 additions and 0 deletions
241
bin/aquarius-redirects
Executable file
241
bin/aquarius-redirects
Executable file
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#!/usr/bin/node
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let fs = require('fs'),
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path = require('path'),
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args = process.argv.slice(2),
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input = "-", // - will reperesent stdin
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output = "-", // - will represent stdout
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delimiter = ",";
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let Reset = "\x1b[0m",
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Bright = "\x1b[1m",
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Dim = "\x1b[2m",
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Underscore = "\x1b[4m",
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Blink = "\x1b[5m",
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Reverse = "\x1b[7m",
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Hidden = "\x1b[8m",
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FgBlack = "\x1b[30m",
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FgRed = "\x1b[31m",
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FgGreen = "\x1b[32m",
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FgYellow = "\x1b[33m",
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FgBlue = "\x1b[34m",
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FgMagenta = "\x1b[35m",
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FgCyan = "\x1b[36m",
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FgWhite = "\x1b[37m",
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BgBlack = "\x1b[40m",
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BgRed = "\x1b[41m",
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BgGreen = "\x1b[42m",
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BgYellow = "\x1b[43m",
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BgBlue = "\x1b[44m",
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BgMagenta = "\x1b[45m",
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BgCyan = "\x1b[46m",
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BgWhite = "\x1b[47m";
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if( args[0] == "-h" || args[0] == "--help" ){
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console.log(FgGreen + "Aquarius Redirects (beta)" + Reset);
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console.log();
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console.log("This takes a csv file from stdinput or a given filename as the first parameter");
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console.log();
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console.log(FgGreen + "Example:" + Reset);
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console.log("aquarius-redirects test.csv \t\t\t This will take each line of a csv file and turn it into a redirect");
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console.log("cat test.csv | aquarius-redirects\t\t This is equivilent to the above");
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console.log("echo \"/test/, /test-2/\" | aquarius-redirects\t This will create a redirect from /test/ to /test-2/");
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console.log();
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console.log();
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console.log();
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console.log(FgGreen + "The CSV File" + Reset);
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console.log();
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console.log("Each row in the CSV file should respond to a redirect.");
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console.log("\t 1. From URL");
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console.log("\t 2. To URL");
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console.log("\t 3. Redirect Type");
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console.log("\t 4. Exact ");
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console.log();
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console.log(FgGreen + "E.g." + Reset);
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console.log("/page-1/ | /page-2/ | | ");
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console.log("/about-us/meet-the-team/ | /meet-the-team/ | | ");
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console.log("/about-us/meet-the-team/*/ | /meet-the-team/*/ | | true ");
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console.log("//google.com/page-1/ | /page-2/ | | ");
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console.log("//google.com/page-1/ | //google.co.uk/page-2/ | 302 | true ");
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console.log("//google.com/*/ | //google.co.uk/*/ | | ");
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console.log();
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console.log(FgGreen + "From URL" + Reset);
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console.log("This is the URL that should be redirected away from");
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console.log("It can optionally contain a * symbol do denote a wildcard expresion");
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console.log("For exmaple, /about-us/*/ will redirect from any child page of /about-us/");
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console.log("");
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console.log(FgGreen + "To URL" + Reset);
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console.log("This is the URL that should be redirected to");
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console.log("It can optionally contain an * symbol if you contained one in the From URL");
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console.log("For exmaple, /about-us/*/ in From and /about/*/ in To will redirect all child pages of about us to the corresponding page under about");
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console.log("");
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console.log(FgGreen + "Redirect Type" + Reset);
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console.log("This is the redirect type");
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console.log("This is optional and contains the responce code that will be sent with the redirection request.");
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console.log("The default is 301 which is a permenant redirect. You might want to make this 302 which implies a temporary redirect");
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console.log("");
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console.log(FgGreen + "Exact" + Reset);
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console.log("This denotes whether the trailing slash should be optional on the from URL");
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console.log("This defualts to false");
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console.log("If true, the From url /about-us != /about-us/ ");
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process.exit(0);
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}
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if(args[0] != undefined && args[0] != ""){
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input = args[0];
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}
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if(input == "-" ) { // We are reading from stdin
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process.stdin.setEncoding('utf-8');
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let contents = "";
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process.stdin.on("readable", () => {
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let back = process.stdin.read();
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if (back != null){
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contents = contents + back;
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}
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});
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process.stdin.on("end", () => {
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doRedirects(contents);
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});
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//console.error("I haven't implemented stdin yet");
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//process.exit(1);
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} else {
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fs.readFile(input, {encoding: 'utf-8'}, function(err,data){
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if (!err) {
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doRedirects(data)
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} else {
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console.log(err);
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process.exit(1);
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}
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});
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}
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function doRedirects(data){
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let lines = data.split("\n");
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for (let i = 0; i < lines.length; i++){
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lines[i] = lines[i].split(",");
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for (let j = 0; j < lines[i].length; j++){
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lines[i][j] = lines[i][j].replace(/^\s*/g,"");
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lines[i][j] = lines[i][j].replace(/\s*$/g,"");
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}
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if (lines[i].length > 1){
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let from = lines[i][0],
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to = lines[i][1],
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type = lines[i][2] || 301,
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exact = lines[i][3] || false;
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let redirect = individualRedirect(from,to,type,exact);
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process.stdout.write("###Redirect from "+from+" to "+to+"###\n");
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process.stdout.write(redirect+"\n");
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process.stdout.write("\n");
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}
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}
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}
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function individualRedirect(from, to, type, exact){
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var ret = "";
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if(!from){
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throw new Error( "You must have a from url" );
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}
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if(!to){
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throw new Error( "You must have a to url" );
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}
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if(!type){
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type = 301;
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}
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if(!exact){
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exact = false;
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}
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if(typeof exact == "string" && exact.toLowerCase() != "true"){
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exact = false;
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}
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from = splitURL_(from);
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if(from.domain != ""){
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ret += "RewriteCond %{HTTP_HOST} ^" + escape_(from.domain) + "$\n";
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}
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for (var i in from.queries){
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ret += "RewriteCond %{QUERY_STRING} (^|&)" + i + ((from.queries[i] !== undefined)?("\=" + from.queries[i]):"") + "($|&)\n";
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}
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ret += "RewriteRule " + doFrom_(from.path,exact) + " " + doTo_(to) + " " + doRewrite_(type);
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return ret;
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}
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function doFrom_(from,exact){
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if(from[0]=="/"){
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from = "^" + from.substring(1,from.length);
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}
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if(!exact){
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if(from[from.length-1]=="/"){
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from = from+"?";
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} else {
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from = from + "\/?";
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}
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}
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from = escape_(from);
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return from + "$";
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}
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function escape_(url){
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return url.replace(/\//g,"\\\/")
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.replace(/\-/g,"\\\-")
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.replace(/\./g,"\\\.")
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.replace(/\*/g,"(.*?)");
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}
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function doTo_(to){
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if(to[0]!="/" && to.indexOf("//")==-1){
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to = "/"+to;
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}
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to = to
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.replace(/\*/g,"$1");
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return to;
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}
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function doRewrite_(type){
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return "[L,R="+type+"]";
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}
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function splitURL_(url){
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ret = {
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protocol:"",
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domain:"",
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path:"",
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queries:{}
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};
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var p=url.indexOf("//");
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if(p!=-1){
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//Gets the protocol
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ret.protocol = url.substring(0,p-1);
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//Removes up to and including the protocol
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url = url.substring(p+2)
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var d = url.indexOf("/");
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if(d!=-1){
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//gets the domain
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ret.domain = url.substring(0,d);
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url=url.substring(d);
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} else {
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ret.domain = url;
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url = "";
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}
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}
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var q=url.indexOf("?");
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if(q!=-1){
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queries = url.substring(q+1).split("&");
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for (var i = 0; i<queries.length; i++){
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ret.queries[queries[i].split("=")[0]] = queries[i].split("=")[1];
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}
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url = url.substring(0,q);
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}
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ret.path=url;
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return ret;
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}
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