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.

---
 .../classes/Swift/ByteStream/FileByteStream.php    | 177 +++++++++++++++++++++
 1 file changed, 177 insertions(+)
 create mode 100755 External/swiftmailer/lib/classes/Swift/ByteStream/FileByteStream.php

(limited to 'External/swiftmailer/lib/classes/Swift/ByteStream/FileByteStream.php')

diff --git a/External/swiftmailer/lib/classes/Swift/ByteStream/FileByteStream.php b/External/swiftmailer/lib/classes/Swift/ByteStream/FileByteStream.php
new file mode 100755
index 0000000..14773c2
--- /dev/null
+++ b/External/swiftmailer/lib/classes/Swift/ByteStream/FileByteStream.php
@@ -0,0 +1,177 @@
+<?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/ByteStream/AbstractFilterableInputStream.php';
+//@require 'Swift/InputByteStream.php';
+//@require 'Swift/FileStream.php';
+//@require 'Swift/IoException.php';
+
+/**
+ * Allows reading and writing of bytes to and from a file.
+ * @package Swift
+ * @subpackage ByteStream
+ * @author Chris Corbyn
+ */
+class Swift_ByteStream_FileByteStream
+  extends Swift_ByteStream_AbstractFilterableInputStream
+  implements Swift_FileStream
+{
+  
+  /** The internal pointer offset */
+  private $_offset = 0;
+  
+  /** The path to the file */
+  private $_path;
+  
+  /** The mode this file is opened in for writing */
+  private $_mode;
+  
+  /** A lazy-loaded resource handle for reading the file */
+  private $_reader;
+  
+  /** A lazy-loaded resource handle for writing the file */
+  private $_writer;
+  
+  /** If magic_quotes_runtime is on, this will be true */
+  private $_quotes = false;
+  
+  /**
+   * Create a new FileByteStream for $path.
+   * @param string $path
+   * @param string $writable if true
+   */
+  public function __construct($path, $writable = false)
+  {
+    $this->_path = $path;
+    $this->_mode = $writable ? 'w+b' : 'rb';
+    $this->_quotes = get_magic_quotes_runtime();
+  }
+  
+  /**
+   * Get the complete path to the file.
+   * @return string
+   */
+  public function getPath()
+  {
+    return $this->_path;
+  }
+  
+  /**
+   * 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 $length
+   * @return string
+   * @throws Swift_IoException
+   */
+  public function read($length)
+  {
+    $fp = $this->_getReadHandle();
+    if (!feof($fp))
+    {
+      if ($this->_quotes)
+      {
+        set_magic_quotes_runtime(0);
+      }
+      $bytes = fread($fp, $length);
+      if ($this->_quotes)
+      {
+        set_magic_quotes_runtime(1);
+      }
+      $this->_offset = ftell($fp);
+      return $bytes;
+    }
+    else
+    {
+      return false;
+    }
+  }
+  
+  /**
+   * Move the internal read pointer to $byteOffset in the stream.
+   * @param int $byteOffset
+   * @return boolean
+   */
+  public function setReadPointer($byteOffset)
+  {
+    if (isset($this->_reader))
+    {
+      fseek($this->_reader, $byteOffset, SEEK_SET);
+    }
+    $this->_offset = $byteOffset;
+  }
+  
+  // -- Private methods
+  
+  /** Just write the bytes to the file */
+  protected function _commit($bytes)
+  {
+    fwrite($this->_getWriteHandle(), $bytes);
+    $this->_resetReadHandle();
+  }
+  
+  /** Not used */
+  protected function _flush()
+  {
+  }
+  
+  /** Get the resource for reading */
+  private function _getReadHandle()
+  {
+    if (!isset($this->_reader))
+    {
+      if (!$this->_reader = fopen($this->_path, 'rb'))
+      {
+        throw new Swift_IoException(
+          'Unable to open file for reading [' . $this->_path . ']'
+          );
+      }
+      fseek($this->_reader, $this->_offset, SEEK_SET);
+    }
+    return $this->_reader;
+  }
+  
+  /** Get the resource for writing */
+  private function _getWriteHandle()
+  {
+    if (!isset($this->_writer))
+    {
+      if (!$this->_writer = fopen($this->_path, $this->_mode))
+      {
+        throw new Swift_IoException(
+          'Unable to open file for writing [' . $this->_path . ']'
+          );
+      }
+    }
+    return $this->_writer;
+  }
+  
+  /** Force a reload of the resource for writing */
+  private function _resetWriteHandle()
+  {
+    if (isset($this->_writer))
+    {
+      fclose($this->_writer);
+      $this->_writer = null;
+    }
+  }
+  
+  /** Force a reload of the resource for reading */
+  private function _resetReadHandle()
+  {
+    if (isset($this->_reader))
+    {
+      fclose($this->_reader);
+      $this->_reader = null;
+    }
+  }
+  
+}
-- 
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