mylivechat.php in My Live Chat 6

MyLiveChat module for Drupal

File

mylivechat.php

<?php

// $Id$

/**
 * @file
 * MyLiveChat module for Drupal
 */
class mylivechat {

  /**
   * Singleton pattern
   */
  protected static $instance = NULL;

  /**
   * Module directory
   */
  protected $module_dir = NULL;

  /**
   * Singleton pattern
   */
  public static function get_instance() {
    if (is_null(self::$instance)) {
      self::$instance = new mylivechat();
    }
    return self::$instance;
  }

  /**
   * Constructor
   */
  protected function __construct() {
    $this->module_dir = drupal_get_path('module', 'mylivechat');
  }

  /**
   * Resets module settings
   */
  public function reset_settings() {
    variable_del('mylivechat_id');
    variable_del('mylivechat_displaytype');
    variable_del('mylivechat_membership');
    variable_del('mylivechat_encrymode');
    variable_del('mylivechat_encrykey');
  }

  /**
   * License number validation
   */
  public function validate_id($mylivechatid) {
    $license = (int) $mylivechatid;
    if ($license === 0) {
      return false;
    }
    return preg_match('/^[0-9]{8}$/', $license);
  }

  /**
   * Checks if MyLiveChat settings are properly set up
   */
  public function is_installed() {
    $mylivechat_id = variable_get('mylivechat_id', '');
    $mylivechat_displaytype = variable_get('mylivechat_displaytype', '');
    $mylivechat_membership = variable_get('mylivechat_membership', '');
    $mylivechat_encrymode = variable_get('mylivechat_encrymode', '');
    $mylivechat_encrykey = variable_get('mylivechat_encrykey', '');
    $isIntegrateUser = false;
    if ($mylivechat_membership == "yes") {
      $isIntegrateUser = true;
    }
    if (is_null($mylivechat_id)) {
      return FALSE;
    }
    if ($this
      ->validate_id($mylivechat_id) == FALSE) {
      return FALSE;
    }
    return TRUE;
  }

  /**
   * Checks if MyLiveChat tracking code is installed properly
   */
  public function tracking_code_installed() {
    if ($this
      ->is_installed() == FALSE) {
      return FALSE;
    }
    return TRUE;
  }

  /**
   * Checks if LiveChat button code is installed properly
   */
  public function chat_button_installed() {
    if ($this
      ->is_installed() == FALSE) {
      return FALSE;
    }
    $r = db_query('SELECT status FROM {blocks} WHERE module="mylivechat"');
    $row = db_fetch_array($r);
    if (!isset($row['status']) || $row['status'] != '1') {
      return FALSE;
    }
    return true;
  }
  public function install_codes() {
    $this
      ->add_tracking_code();
  }

  /**
   * Install tracking code
   */
  public function add_tracking_code() {
    if ($this
      ->is_installed() == FALSE) {
      return FALSE;
    }
  }

  /**
   * Returns MyLiveChat button HTML code
   */
  public function getChatCode() {
    if ($this
      ->is_installed() == FALSE) {
      return FALSE;
    }
    $mylivechat_id = variable_get('mylivechat_id', '');
    $mylivechat_displaytype = variable_get('mylivechat_displaytype', 'button');
    $mylivechat_membership = variable_get('mylivechat_membership', 'no');
    $mylivechat_encrymode = variable_get('mylivechat_encrymode', 'none');
    $mylivechat_encrykey = variable_get('mylivechat_encrykey', '');
    $isIntegrateUser = false;
    if ($mylivechat_membership == "yes") {
      $isIntegrateUser = true;
    }
    $chat_button = "<div class=\"mod_mylivechat\">";
    if ($mylivechat_displaytype == "button") {
      $chat_button .= "<script type=\"text/javascript\" src=\"https://www.mylivechat.com/chatbutton.aspx?hccid=" . $mylivechat_id . "\"></script>";
    }
    else {
      if ($mylivechat_displaytype == "box") {
        $chat_button .= "<script type=\"text/javascript\" src=\"https://www.mylivechat.com/chatbox.aspx?hccid=" . $mylivechat_id . "\"></script>";
      }
      else {
        $chat_button .= "<script type=\"text/javascript\" src=\"https://www.mylivechat.com/chatlink.aspx?hccid=" . $mylivechat_id . "\"></script>";
      }
    }
    global $user;
    if (in_array('authenticated user', $user->roles) && $isIntegrateUser == true) {
      if ($mylivechat_encrykey == null || strlen($mylivechat_encrykey) == 0) {
        $chat_button .= "<script type=\"text/javascript\">MyLiveChat_SetUserName('" . $this
          ->EncodeJScript($user->name) . "');</script>";
      }
      else {
        $chat_button .= "<script type=\"text/javascript\">MyLiveChat_SetUserName('" . $this
          ->EncodeJScript($user->name) . "','" . $this
          ->GetEncrypt($user->uid . "", $mylivechat_encrymode, $mylivechat_encrykey) . "');</script>";
      }
    }
    $chat_button .= "</div>";

    // Return chat button code
    return $chat_button;
  }
  public function include_admin_css() {
  }
  public function include_admin_js() {
    drupal_add_js($this->module_dir . '/js/jquery-1.6.min.js');
    drupal_add_js($this->module_dir . '/js/mylivechat.js');
  }
  public function GetEncrypt($data, $encrymode, $encrykey) {
    if ($encrymode == "basic") {
      return $this
        ->BasicEncrypt($data, $encrykey);
    }
    return $data;
  }
  public function BasicEncrypt($data, $encryptkey) {
    $EncryptLoopCount = 4;
    $vals = $this
      ->MakeArray($data, true);
    $keys = $this
      ->MakeArray($encryptkey, false);
    $len = sizeof($vals);
    $len2 = sizeof($keys);
    for ($t = 0; $t < $EncryptLoopCount; $t++) {
      for ($i = 0; $i < $len; $i++) {
        $v = $vals[$i];
        $im = ($v + $i) % 5;
        for ($x = 0; $x < $len; $x++) {
          if ($x == $i) {
            continue;
          }
          if ($x % 5 != $im) {
            continue;
          }
          for ($y = 0; $y < $len2; $y++) {
            $k = $keys[$y];
            if ($k == 0) {
              continue;
            }
            $vals[$x] += $v % $k;
          }
        }
      }
    }
    return implode('-', $vals);
  }
  public function MakeArray($str, $random) {
    $len = pow(2, floor(log(strlen($str), 2)) + 1) + 8;
    if ($len < 32) {
      $len = 32;
    }
    $arr = array();
    $strarr = str_split($str);
    if ($random == true) {
      for ($i = 0; $i < $len; $i++) {
        $arr[] = ord($strarr[rand() % strlen($str)]);
      }
      $start = 1 + rand() % ($len - strlen($str) - 2);
      for ($i = 0; $i < strlen($str); $i++) {
        $arr[$start + $i] = ord($strarr[$i]);
      }
      $arr[$start - 1] = 0;
      $arr[$start + strlen($str)] = 0;
    }
    else {
      for ($i = 0; $i < $len; $i++) {
        $arr[] = ord($strarr[$i % strlen($str)]);
      }
    }
    return $arr;
  }
  public function EncodeJScript($str) {
    $chars = "0123456789ABCDEF";
    $chars = str_split($chars);
    $sb = "";
    $l = strlen($str);
    $strarr = str_split($str);
    for ($i = 0; $i < $l; $i++) {
      $c = $strarr[$i];
      if ($c == '\\' || $c == '"' || $c == '\'' || $c == '>' || $c == '<' || $c == '&' || $c == '\\r' || $c == '\\n') {
        if ($sb == "") {
          if ($i > 0) {
            $sb .= substr($str, 0, $i);
          }
        }
        if ($c == '\\') {
          $sb .= "\\x5C";
        }
        else {
          if ($c == '"') {
            $sb .= "\\x22";
          }
          else {
            if ($c == '\'') {
              $sb .= "\\x27";
            }
            else {
              if ($c == '\\r') {
                $sb .= "\\x0D";
              }
              else {
                if ($c == '\\n') {
                  $sb .= "\\x0A";
                }
                else {
                  if ($c == '<') {
                    $sb .= "\\x3C";
                  }
                  else {
                    if ($c == '>') {
                      $sb .= "\\x3E";
                    }
                    else {
                      if ($c == '&') {
                        $sb .= "\\x26";
                      }
                      else {
                        $code = $c;
                        $a1 = $code & 0xf;
                        $a2 = ($code & 0xf0) / 0x10;
                        $sb .= "\\x";
                        $sb .= $chars[$a2];
                        $sb .= $chars[$a1];
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
      else {
        if ($sb != "") {
          $sb .= $c;
        }
      }
    }
    if ($sb != "") {
      return $sb;
    }
    return $str;
  }

}

Classes

Name	Description
mylivechat	@file MyLiveChat module for Drupal