From 07f5140771388c9e0c8a99b0dd2e5d950bdb173b Mon Sep 17 00:00:00 2001
From: Yuchen Pei <hi@ypei.me>
Date: Thu, 14 Oct 2021 15:16:42 +1100
Subject: moving h-source subdir out.

---
 .../lib/classes/Swift/KeyCache/DiskKeyCache.php    | 316 +++++++++++++++++++++
 1 file changed, 316 insertions(+)
 create mode 100755 External/swiftmailer/lib/classes/Swift/KeyCache/DiskKeyCache.php

(limited to 'External/swiftmailer/lib/classes/Swift/KeyCache/DiskKeyCache.php')

diff --git a/External/swiftmailer/lib/classes/Swift/KeyCache/DiskKeyCache.php b/External/swiftmailer/lib/classes/Swift/KeyCache/DiskKeyCache.php
new file mode 100755
index 0000000..599fd6c
--- /dev/null
+++ b/External/swiftmailer/lib/classes/Swift/KeyCache/DiskKeyCache.php
@@ -0,0 +1,316 @@
+<?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/KeyCache.php';
+//@require 'Swift/KeyCacheInputStream.php';
+//@require 'Swift/InputByteStream.php';
+//@require 'Swift/OutputByteStrean.php';
+//@require 'Swift/SwiftException.php';
+//@require 'Swift/IoException.php';
+
+/**
+ * A KeyCache which streams to and from disk.
+ * @package Swift
+ * @subpackage KeyCache
+ * @author Chris Corbyn
+ */
+class Swift_KeyCache_DiskKeyCache implements Swift_KeyCache
+{
+
+  /** Signal to place pointer at start of file */
+  const POSITION_START = 0;
+
+  /** Signal to place pointer at end of file */
+  const POSITION_END = 1;
+
+  /**
+   * An InputStream for cloning.
+   * @var Swift_KeyCache_KeyCacheInputStream
+   * @access private
+   */
+  private $_stream;
+
+  /**
+   * A path to write to.
+   * @var string
+   * @access private
+   */
+  private $_path;
+
+  /**
+   * Stored keys.
+   * @var array
+   * @access private
+   */
+  private $_keys = array();
+
+  /**
+   * Will be true if magic_quotes_runtime is turned on.
+   * @var boolean
+   * @access private
+   */
+  private $_quotes = false;
+
+  /**
+   * Create a new DiskKeyCache with the given $stream for cloning to make
+   * InputByteStreams, and the given $path to save to.
+   * @param Swift_KeyCache_KeyCacheInputStream $stream
+   * @param string $path to save to
+   */
+  public function __construct(Swift_KeyCache_KeyCacheInputStream $stream, $path)
+  {
+    $this->_stream = $stream;
+    $this->_path = $path;
+    $this->_quotes = get_magic_quotes_runtime();
+  }
+
+  /**
+   * Set a string into the cache under $itemKey for the namespace $nsKey.
+   * @param string $nsKey
+   * @param string $itemKey
+   * @param string $string
+   * @param int $mode
+   * @throws Swift_IoException
+   * @see MODE_WRITE, MODE_APPEND
+   */
+  public function setString($nsKey, $itemKey, $string, $mode)
+  {
+    $this->_prepareCache($nsKey);
+    switch ($mode)
+    {
+      case self::MODE_WRITE:
+        $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_START);
+        break;
+      case self::MODE_APPEND:
+        $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_END);
+        break;
+      default:
+        throw new Swift_SwiftException(
+          'Invalid mode [' . $mode . '] used to set nsKey='.
+          $nsKey . ', itemKey=' . $itemKey
+          );
+        break;
+    }
+    fwrite($fp, $string);
+  }
+
+  /**
+   * Set a ByteStream into the cache under $itemKey for the namespace $nsKey.
+   * @param string $nsKey
+   * @param string $itemKey
+   * @param Swift_OutputByteStream $os
+   * @param int $mode
+   * @see MODE_WRITE, MODE_APPEND
+   * @throws Swift_IoException
+   */
+  public function importFromByteStream($nsKey, $itemKey, Swift_OutputByteStream $os,
+    $mode)
+  {
+    $this->_prepareCache($nsKey);
+    switch ($mode)
+    {
+      case self::MODE_WRITE:
+        $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_START);
+        break;
+      case self::MODE_APPEND:
+        $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_END);
+        break;
+      default:
+        throw new Swift_SwiftException(
+          'Invalid mode [' . $mode . '] used to set nsKey='.
+          $nsKey . ', itemKey=' . $itemKey
+          );
+        break;
+    }
+    while (false !== $bytes = $os->read(8192))
+    {
+      fwrite($fp, $bytes);
+    }
+  }
+
+  /**
+   * Provides a ByteStream which when written to, writes data to $itemKey.
+   * NOTE: The stream will always write in append mode.
+   * @param string $nsKey
+   * @param string $itemKey
+   * @return Swift_InputByteStream
+   */
+  public function getInputByteStream($nsKey, $itemKey,
+    Swift_InputByteStream $writeThrough = null)
+  {
+    $is = clone $this->_stream;
+    $is->setKeyCache($this);
+    $is->setNsKey($nsKey);
+    $is->setItemKey($itemKey);
+    if (isset($writeThrough))
+    {
+      $is->setWriteThroughStream($writeThrough);
+    }
+    return $is;
+  }
+
+  /**
+   * Get data back out of the cache as a string.
+   * @param string $nsKey
+   * @param string $itemKey
+   * @return string
+   * @throws Swift_IoException
+   */
+  public function getString($nsKey, $itemKey)
+  {
+    $this->_prepareCache($nsKey);
+    if ($this->hasKey($nsKey, $itemKey))
+    {
+      $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_START);
+      if ($this->_quotes)
+      {
+        set_magic_quotes_runtime(0);
+      }
+      $str = '';
+      while (!feof($fp) && false !== $bytes = fread($fp, 8192))
+      {
+        $str .= $bytes;
+      }
+      if ($this->_quotes)
+      {
+        set_magic_quotes_runtime(1);
+      }
+      return $str;
+    }
+  }
+
+  /**
+   * Get data back out of the cache as a ByteStream.
+   * @param string $nsKey
+   * @param string $itemKey
+   * @param Swift_InputByteStream $is to write the data to
+   */
+  public function exportToByteStream($nsKey, $itemKey, Swift_InputByteStream $is)
+  {
+    if ($this->hasKey($nsKey, $itemKey))
+    {
+      $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_START);
+      if ($this->_quotes)
+      {
+        set_magic_quotes_runtime(0);
+      }
+      while (!feof($fp) && false !== $bytes = fread($fp, 8192))
+      {
+        $is->write($bytes);
+      }
+      if ($this->_quotes)
+      {
+        set_magic_quotes_runtime(1);
+      }
+    }
+  }
+
+  /**
+   * Check if the given $itemKey exists in the namespace $nsKey.
+   * @param string $nsKey
+   * @param string $itemKey
+   * @return boolean
+   */
+  public function hasKey($nsKey, $itemKey)
+  {
+    return is_file($this->_path . '/' . $nsKey . '/' . $itemKey);
+  }
+
+  /**
+   * Clear data for $itemKey in the namespace $nsKey if it exists.
+   * @param string $nsKey
+   * @param string $itemKey
+   */
+  public function clearKey($nsKey, $itemKey)
+  {
+    if ($this->hasKey($nsKey, $itemKey))
+    {
+      $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_END);
+      fclose($fp);
+      unlink($this->_path . '/' . $nsKey . '/' . $itemKey);
+    }
+    unset($this->_keys[$nsKey][$itemKey]);
+  }
+
+  /**
+   * Clear all data in the namespace $nsKey if it exists.
+   * @param string $nsKey
+   */
+  public function clearAll($nsKey)
+  {
+    if (array_key_exists($nsKey, $this->_keys))
+    {
+      foreach ($this->_keys[$nsKey] as $itemKey=>$null)
+      {
+        $this->clearKey($nsKey, $itemKey);
+      }
+      rmdir($this->_path . '/' . $nsKey);
+      unset($this->_keys[$nsKey]);
+    }
+  }
+
+  // -- Private methods
+
+  /**
+   * Initialize the namespace of $nsKey if needed.
+   * @param string $nsKey
+   * @access private
+   */
+  private function _prepareCache($nsKey)
+  {
+    $cacheDir = $this->_path . '/' . $nsKey;
+    if (!is_dir($cacheDir))
+    {
+      if (!mkdir($cacheDir))
+      {
+        throw new Swift_IoException('Failed to create cache directory ' . $cacheDir);
+      }
+      $this->_keys[$nsKey] = array();
+    }
+  }
+
+  /**
+   * Get a file handle on the cache item.
+   * @param string $nsKey
+   * @param string $itemKey
+   * @param int $position
+   * @return resource
+   * @access private
+   */
+  private function _getHandle($nsKey, $itemKey, $position)
+  {
+    if (!isset($this->_keys[$nsKey]) || !array_key_exists($itemKey, $this->_keys[$nsKey]))
+    {
+      $fp = fopen($this->_path . '/' . $nsKey . '/' . $itemKey, 'w+b');
+      $this->_keys[$nsKey][$itemKey] = $fp;
+    }
+    if (self::POSITION_START == $position)
+    {
+      fseek($this->_keys[$nsKey][$itemKey], 0, SEEK_SET);
+    }
+    else
+    {
+      fseek($this->_keys[$nsKey][$itemKey], 0, SEEK_END);
+    }
+    return $this->_keys[$nsKey][$itemKey];
+  }
+
+  /**
+   * Destructor.
+   */
+  public function __destruct()
+  {
+    foreach ($this->_keys as $nsKey=>$null)
+    {
+      $this->clearAll($nsKey);
+    }
+  }
+
+}
-- 
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