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<?php

/*
 AntiFlood plugin in Swift Mailer.
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 */

//@require 'Swift/Events/SendListener.php';
//@require 'Swift/Events/SendEvent.php';
//@require 'Swift/Plugins/Sleeper.php';

/**
 * Reduces network flooding when sending large amounts of mail.
 *
 * @author Chris Corbyn
 */
class Swift_Plugins_AntiFloodPlugin
  implements Swift_Events_SendListener, Swift_Plugins_Sleeper
{
    /**
   * The number of emails to send before restarting Transport.
   *
   * @var int
   */
  private $_threshold;

/**
   * The number of seconds to sleep for during a restart.
   *
   * @var int
   */
  private $_sleep;

/**
   * The internal counter.
   *
   * @var int
   */
  private $_counter = 0;

/**
   * The Sleeper instance for sleeping.
   *
   * @var Swift_Plugins_Sleeper
   */
  private $_sleeper;

/**
   * Create a new AntiFloodPlugin with $threshold and $sleep time.
   *
   * @param int $threshold
   * @param int $sleep time
   * @param Swift_Plugins_Sleeper $sleeper (not needed really)
   */
  public function __construct($threshold = 99, $sleep = 0,
    Swift_Plugins_Sleeper $sleeper = null)
  {
      $this->setThreshold($threshold);
      $this->setSleepTime($sleep);
      $this->_sleeper = $sleeper;
  }

/**
   * Set the number of emails to send before restarting.
   *
   * @param int $threshold
   */
  public function setThreshold($threshold)
  {
      $this->_threshold = $threshold;
  }

/**
   * Get the number of emails to send before restarting.
   *
   * @return int
   */
  public function getThreshold()
  {
      return $this->_threshold;
  }

/**
   * Set the number of seconds to sleep for during a restart.
   *
   * @param int $sleep time
   */
  public function setSleepTime($sleep)
  {
      $this->_sleep = $sleep;
  }

/**
   * Get the number of seconds to sleep for during a restart.
   *
   * @return int
   */
  public function getSleepTime()
  {
      return $this->_sleep;
  }

/**
   * Invoked immediately before the Message is sent.
   *
   * @param Swift_Events_SendEvent $evt
   */
  public function beforeSendPerformed(Swift_Events_SendEvent $evt)
  {
  }

/**
   * Invoked immediately after the Message is sent.
   *
   * @param Swift_Events_SendEvent $evt
   */
  public function sendPerformed(Swift_Events_SendEvent $evt)
  {
      ++$this->_counter;
      if ($this->_counter >= $this->_threshold) {
          $transport = $evt->getTransport();
          $transport->stop();
          if ($this->_sleep) {
              $this->sleep($this->_sleep);
          }
          $transport->start();
          $this->_counter = 0;
      }
  }

/**
   * Sleep for $seconds.
   *
   * @param int $seconds
   */
  public function sleep($seconds)
  {
      if (isset($this->_sleeper)) {
          $this->_sleeper->sleep($seconds);
      } else {
          sleep($seconds);
      }
  }
}

[+] ..
[+] Loggers
[-] BandwidthMonitorPlugin.php [edit]
[-] LoggerPlugin.php [edit]
[+] Reporters
[-] AntiFloodPlugin.php [edit]
[-] Logger.php [edit]
[+] Pop
[-] ReporterPlugin.php [edit]
[-] Sleeper.php [edit]
[-] DecoratorPlugin.php [edit]
[-] Reporter.php [edit]
[+] Decorator
[-] ThrottlerPlugin.php [edit]
[-] Timer.php [edit]
[-] PopBeforeSmtpPlugin.php [edit]