FreeWifiReconnect.js

// ==UserScript==
// @name         Free WiFi Reconnect
// @namespace    http://glukki.ru/
// @description  Detects free Wi-Fi timelimit expiration and logs you back in
// @version      0.0.5
// @updateURL    https://gist.githubusercontent.com/glukki/d9d61709dc9c1f4354d8/raw/FreeWifiReconnect.js
// @match        http://www.apple.com/library/test/success.html
// @match        *://login.connectum.ru/*
// @grant        unsafeWindow
// @copyright    2014+, Vitaliy Meschaninov
// ==/UserScript==

var Logic = function(options){
  this._window = options.window;
};

Logic.prototype.CHECK_URL = "http://www.apple.com/library/test/success.html";
Logic.prototype.SUCCESS = "Success";
Logic.prototype.INTERVAL = 30 * 1000; // 30 seconds

Logic.prototype.reload = function() {
  this._window.location = this.CHECK_URL;
};

Logic.prototype.checkSuccess = function() {
  if (this._window && this._window.document && this._window.document.title === this.SUCCESS) {
    return true;
  }
  return false;
};

Logic.prototype.connect = function() {
  var strategy = this.strategy[this._window.location.hostname];
  if (!strategy) {
    return alert("We have no strategy for this network");
  }
  
  if (typeof strategy === "object") {
    var keys = Object.keys(strategy);
    for (var i = 0; i < keys.length; i += 1) {
      if (this._window.location.pathname.indexOf(strategy[keys[i]]) !== -1){
        strategy = strategy[keys[i]];
        break;
      }
    }
    if(typeof strategy !== "string") {
      return alert("We have no matching strategy for this network");
    }
  }
  
  var element;
  var type = strategy[0];
  strategy = strategy.substr(1);
  if (type === "#") {
    element = this._window.document.getElementById(strategy);
  } else if (type === ".") {
    element = this._window.document.getElementsByClassName(strategy)[0]
  } else {
    return alert("Selector not supported");
  }
  
  if (!element) {
    return alert("Cant get required element");
  }
  
  element.click();
};

Logic.prototype.run = function() {
  if (!this.checkSuccess()) {
    return this.connect();
  }
  
  setTimeout(this.reload.bind(this), this.INTERVAL);
};

/**
 * Click rules
 * hostname : selector
 * OR
 * hostname : pathname (substring) : selector
 */
Logic.prototype.strategy = {
  "login.connectum.ru": ".connectbutton"
};



(function() {
  var instance = new Logic({
    window: unsafeWindow
  });
  instance.run();
})();