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system/vendor/swift/Swift/Plugin/AntiFlood.php

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+<?php
+
+/**
+ * Swift Mailer AntiFlood Plugin
+ * Please read the LICENSE file
+ * @author Chris Corbyn <chris@w3style.co.uk>
+ * @package Swift_Plugin
+ * @license GNU Lesser General Public License
+ */
+
+require_once dirname(__FILE__) . "/../ClassLoader.php";
+Swift_ClassLoader::load("Swift_Events_SendListener");
+
+/**
+ * Swift AntiFlood controller.
+ * Closes a connection and pauses for X seconds after a number of emails have been sent.
+ * @package Swift_Plugin
+ * @author Chris Corbyn <chris@w3style.co.uk>
+ */
+class Swift_Plugin_AntiFlood implements Swift_Events_SendListener
+{
+  /**
+   * The number of emails to send between connections
+   * @var int
+   */
+  protected $threshold = null;
+  /**
+   * The number of seconds to pause for between connections
+   * @var int
+   */
+  protected $waitFor = null;
+  /**
+   * Number of emails sent so far
+   * @var int
+   */
+  protected $count = 0;
+  
+  /**
+   * Constructor
+   * @param int Number of emails to send before re-connecting
+   * @param int The timeout in seconds between connections
+   */
+  public function __construct($threshold, $wait=0)
+  {
+    $this->setThreshold($threshold);
+    $this->setWait($wait);
+  }
+  /**
+   * Set the number of emails which must be sent for a reconnection to occur
+   * @param int Number of emails
+   */
+  public function setThreshold($threshold)
+  {
+    $this->threshold = (int) $threshold;
+  }
+  /**
+   * Get the number of emails which need to be sent for reconnection to occur
+   * @return int
+   */
+  public function getThreshold()
+  {
+    return $this->threshold;
+  }
+  /**
+   * Set the number of seconds the plugin should wait for before reconnecting
+   * @param int Time in seconds
+   */
+  public function setWait($time)
+  {
+    $this->waitFor = (int) $time;
+  }
+  /**
+   * Get the number of seconds the plugin should wait for before re-connecting
+   * @return int
+   */
+  public function getWait()
+  {
+    return $this->waitFor;
+  }
+  /**
+   * Sleep for a given number of seconds
+   * @param int Number of seconds to wait for
+   */
+  public function wait($seconds)
+  {
+    if ($seconds) sleep($seconds);
+  }
+  /**
+   * Swift's SendEvent listener.
+   * Invoked when Swift sends a message
+   * @param Swift_Events_SendEvent The event information
+   * @throws Swift_ConnectionException If the connection cannot be closed/re-opened
+   */
+  public function sendPerformed(Swift_Events_SendEvent $e)
+  {
+    $this->count++;
+    if ($this->count >= $this->getThreshold())
+    {
+      $e->getSwift()->disconnect();
+      $this->wait($this->getWait());
+      $e->getSwift()->connect();
+      $this->count = 0;
+    }
+  }
+}