Added 3rd party KH modules

modules/khemail/vendor/swift/classes/Swift/ByteStream/ArrayByteStream.php

@@ -0,0 +1,190 @@
+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+//@require 'Swift/InputByteStream.php';
+//@require 'Swift/OutputByteStream.php';
+
+/**
+ * Allows reading and writing of bytes to and from an array.
+ * @package Swift
+ * @subpackage ByteStream
+ * @author Chris Corbyn
+ */
+class Swift_ByteStream_ArrayByteStream
+  implements Swift_InputByteStream, Swift_OutputByteStream
+{
+
+  /**
+   * The internal stack of bytes.
+   * @var string[]
+   * @access private
+   */
+  private $_array = array();
+
+  /**
+   * The size of the stack
+   * @var int
+   * @access private
+   */
+  private $_arraySize = 0;
+
+  /**
+   * The internal pointer offset.
+   * @var int
+   * @access private
+   */
+  private $_offset = 0;
+  
+  /** Bound streams */
+  private $_mirrors = array();
+  
+  /**
+   * Create a new ArrayByteStream.
+   * If $stack is given the stream will be populated with the bytes it contains.
+   * @param mixed $stack of bytes in string or array form, optional
+   */
+  public function __construct($stack = null)
+  {
+    if (is_array($stack))
+    {
+      $this->_array = $stack;
+      $this->_arraySize = count($stack);
+    }
+    elseif (is_string($stack))
+    {
+      $this->write($stack);
+    }
+    else
+    {
+      $this->_array = array();
+    }
+  }
+
+  /**
+   * Reads $length bytes from the stream into a string and moves the pointer
+   * through the stream by $length. If less bytes exist than are requested the
+   * remaining bytes are given instead. If no bytes are remaining at all, boolean
+   * false is returned.
+   * @param int $length
+   * @return string
+   */
+  public function read($length)
+  {
+    if ($this->_offset == $this->_arraySize)
+    {
+      return false;
+    }
+
+    // Don't use array slice
+    $end = $length + $this->_offset;
+    $end = $this->_arraySize<$end
+      ?$this->_arraySize
+      :$end;
+    $ret = '';
+    for (; $this->_offset < $end; ++$this->_offset)
+    {
+      $ret .= $this->_array[$this->_offset];
+    }
+    return $ret;
+  }
+
+  /**
+   * Writes $bytes to the end of the stream.
+   * @param string $bytes
+   */
+  public function write($bytes)
+  {
+    $to_add = str_split($bytes);
+    foreach ($to_add as $value)
+    {
+      $this->_array[] = $value;
+    }
+    $this->_arraySize = count($this->_array);
+    
+    foreach ($this->_mirrors as $stream)
+    {
+      $stream->write($bytes);
+    }
+  }
+  
+  /**
+   * Not used.
+   */
+  public function commit()
+  {
+  }
+  
+  /**
+   * Attach $is to this stream.
+   * The stream acts as an observer, receiving all data that is written.
+   * All {@link write()} and {@link flushBuffers()} operations will be mirrored.
+   *
+   * @param Swift_InputByteStream $is
+   */
+  public function bind(Swift_InputByteStream $is)
+  {
+    $this->_mirrors[] = $is;
+  }
+  
+  /**
+   * Remove an already bound stream.
+   * If $is is not bound, no errors will be raised.
+   * If the stream currently has any buffered data it will be written to $is
+   * before unbinding occurs.
+   *
+   * @param Swift_InputByteStream $is
+   */
+  public function unbind(Swift_InputByteStream $is)
+  {
+    foreach ($this->_mirrors as $k => $stream)
+    {
+      if ($is === $stream)
+      {
+        unset($this->_mirrors[$k]);
+      }
+    }
+  }
+
+  /**
+   * Move the internal read pointer to $byteOffset in the stream.
+   * @param int $byteOffset
+   * @return boolean
+   */
+  public function setReadPointer($byteOffset)
+  {
+    if ($byteOffset > $this->_arraySize)
+    {
+      $byteOffset = $this->_arraySize;
+    }
+    elseif ($byteOffset < 0)
+    {
+      $byteOffset = 0;
+    }
+
+    $this->_offset = $byteOffset;
+  }
+
+  /**
+   * Flush the contents of the stream (empty it) and set the internal pointer
+   * to the beginning.
+   */
+  public function flushBuffers()
+  {
+    $this->_offset = 0;
+    $this->_array = array();
+    $this->_arraySize = 0;
+    
+    foreach ($this->_mirrors as $stream)
+    {
+      $stream->flushBuffers();
+    }
+  }
+
+}