psn_name_checker.js

/**
 * 1. Go to this page: https://my.playstation.com/logged-in/trophies/public-trophies/ (using google chrome)
 * 2. Right click on the page and select "inspect element"
 * 3. Go to the "console" tab.
 * 4. Change the names below with the ones you want to test
 * 5. Copy/Paste the following script in the console and hit "enter".
 */

(function () {

  // PASTE YOUR NAMES HERE
  // http://www.namegenerator.biz/screen-name-generator.php
  var names = (function () { /*

    TheChangeableGamer
    TheJaggedMike
    TheMomentousMike
    TheElfinMike
    TheUnevenMike
    TheSleepyMike

  */});

  var extractNames = function (fn) {
    return fn
      .toString()
      .split("\n")
      .slice(1, -1)
      .map(function (line) {
        return line.trim();
      })
      .filter(function (line) {
        return line.length > 0;
      });
  };

  var isAvailable = function (name, callback) {
    var url = "https://my.playstation.com/playstation/psn/profile/public/userData?onlineId=";
    $.getJSON(url + name).then(function (data) {
        callback(null, typeof data.handle === "undefined");
    }, function (error) {
        callback(error, null);
    });
  };
  
  var availabelNames = [],
      pending        = 0;

  extractNames(names).forEach(function (name) {
    pending++;
    isAvailable(name, function (error, available) {
      if (error === null) {
        console.log(name, available ? ":)" : ":(");
        if (available) {
          availabelNames.push(name);
        }
      } else {
        console.log(name, error);
      }
      if (--pending === 0) {
        console.log(
          "\n\n" +
          availabelNames.length.toString() +
          " name(s) available:\n\n"
        );
        availabelNames.forEach(function (name) {
          console.log("\t" + name);
        });
      }
    });
  });

}).call(null);