XMAN Replicator

Path: /home/rlinfolily/www/wp-content/plugins/amp/includes/lib/
Name	Size	Rights	Date	Actions
[.]	<DIR>	drwxr-xr-x	2016-05-06 10:15	🔄 🗑️ 🗑️📁 ⬇️ 🔒
[..]	<DIR>	drwxr-xr-x	2016-05-06 10:15	🔄 🗑️ 🗑️📁 ⬇️ 🔒
class-fastimage.php	4,071 B	-rw-r--r--	2016-05-06 10:15	✏️ 🔄 🗑️ ⬇️ 🔒
View: class-fastimage.php

<?php

/**
 * FastImage - Because sometimes you just want the size!
 * Based on the Ruby Implementation by Steven Sykes (https://github.com/sdsykes/fastimage)
 *
 * Copyright (c) 2012 Tom Moor
 * Tom Moor, http://tommoor.com
 *
 * MIT Licensed
 * @version 0.1
 */

class FastImage
{
	private $strpos = 0;
	private $str;
	private $type;
	private $handle;

	public function __construct($uri = null)
	{
		if ($uri) $this->load($uri);
	}


	public function load($uri)
	{
		if ($this->handle) $this->close();

		$this->handle = fopen($uri, 'r');
	}


	public function close()
	{
		if ($this->handle)
		{
			fclose($this->handle);
			$this->handle = null;
			$this->type = null;
			$this->str = null;
		}
	}


	public function getSize()
	{
		if (!$this->handle)
		{
			return false;
		}

		$this->strpos = 0;
		if ($this->getType())
		{
			return array_values($this->parseSize());
		}

		return false;
	}


	public function getType()
	{
		if (!$this->handle)
		{
			return false;
		}

		$this->strpos = 0;

		if (!$this->type)
		{
			switch ($this->getChars(2))
			{
				case "BM":
					return $this->type = 'bmp';
				case "GI":
					return $this->type = 'gif';
				case chr(0xFF).chr(0xd8):
					return $this->type = 'jpeg';
				case chr(0x89).'P':
					return $this->type = 'png';
				default:
					return false;
			}
		}

		return $this->type;
	}


	private function parseSize()
	{
		$this->strpos = 0;

		switch ($this->type)
		{
			case 'png':
				return $this->parseSizeForPNG();
			case 'gif':
				return $this->parseSizeForGIF();
			case 'bmp':
				return $this->parseSizeForBMP();
			case 'jpeg':
				return $this->parseSizeForJPEG();
		}

		return null;
	}


	private function parseSizeForPNG()
	{
		$chars = $this->getChars(25);

		return unpack("N*", substr($chars, 16, 8));
	}


	private function parseSizeForGIF()
	{
		$chars = $this->getChars(11);

		return unpack("S*", substr($chars, 6, 4));
	}


	private function parseSizeForBMP()
	{
		$chars = $this->getChars(29);
	 	$chars = substr($chars, 14, 14);
		$type = unpack('C', $chars);

		return (reset($type) == 40) ? unpack('L*', substr($chars, 4)) : unpack('L*', substr($chars, 4, 8));
	}


	private function parseSizeForJPEG()
	{
		$state = null;
		$i = 0;

		while (true)
		{
			switch ($state)
			{
				default:
					$this->getChars(2);
					$state = 'started';
					break;

				case 'started':
					$b = $this->getByte();
					if ($b === false) return false;

					$state = $b == 0xFF ? 'sof' : 'started';
					break;

				case 'sof':
					$b = $this->getByte();
					if (in_array($b, range(0xe0, 0xef)))
					{
						$state = 'skipframe';
					}
					elseif (in_array($b, array_merge(range(0xC0,0xC3), range(0xC5,0xC7), range(0xC9,0xCB), range(0xCD,0xCF))))
					{
						$state = 'readsize';
					}
					elseif ($b == 0xFF)
					{
						$state = 'sof';
					}
					else
					{
						$state = 'skipframe';
					}
					break;

				case 'skipframe':
					$skip = $this->readInt($this->getChars(2)) - 2;
					$state = 'doskip';
					break;

				case 'doskip':
					$this->getChars($skip);
					$state = 'started';
					break;

				case 'readsize':
					$c = $this->getChars(7);

					return array($this->readInt(substr($c, 5, 2)), $this->readInt(substr($c, 3, 2)));
			}
		}
	}


	private function getChars($n)
	{
		$response = null;

		// do we need more data?
		if ($this->strpos + $n -1 >= strlen($this->str))
		{
			$end = ($this->strpos + $n);

			while (strlen($this->str) < $end && $response !== false)
			{
				// read more from the file handle
				$need = $end - ftell($this->handle);

				if ($response = fread($this->handle, $need))
				{
					$this->str .= $response;
				}
				else
				{
					return false;
				}
			}
		}

		$result = substr($this->str, $this->strpos, $n);
		$this->strpos += $n;

		return $result;
	}


	private function getByte()
	{
		$c = $this->getChars(1);
		$b = unpack("C", $c);

		return reset($b);
	}


	private function readInt($str)
	{
		$size = unpack("C*", $str);

		return ($size[1] << 8) + $size[2];
	}


	public function __destruct()
	{
		$this->close();
	}
}
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View: class-fastimage.php

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