/**
* Reads a Bencoded file and puts it into and array.
*/
public function testReadingFile()
{
// you should always trim an opened file, in case of a newline character
// at the end, f*****g some shit up
$stream = trim(file_get_contents(__DIR__ . '/assets/dictionary.be'));
$dictionary = new Dictionary();
$dictionary->decode($stream);
$this->assertEquals($stream, $dictionary->encode());
}
/**
* Decoding a Dictionary is a lot like decoding a List, however we are
* looking for the firs two Elements and setting them as the key and value
* of the array.
*
* A key must be an encoded byte, however the value can be any of the other
* elements, such as an Integer, List or another Dictionary.
*
* @param string $stream Encoded Dictionary
*
* @return string the remainder of the stream, if anything
*/
public function decode($stream)
{
$stream = $this->dropEncoding($stream, self::PATTERN);
if (is_numeric($stream[0])) {
$key = new Byte();
} elseif ($stream[0] === 'i') {
$key = new Integer();
} else {
return $stream;
}
// always read the key first, then onto the value
$stream = $key->decode($stream);
if (is_numeric($stream[0])) {
$value = new Byte();
} elseif ($stream[0] === 'i') {
$value = new Integer();
} elseif ($stream[0] === 'l') {
$value = new BList();
} elseif ($stream[0] === 'd') {
$value = new Dictionary();
} else {
throw new DictionaryException('Improper dictionary value encoding: ' . $stream);
}
$stream = $value->decode($stream);
// assign the key and value.
$this->_buffer[$key->write()] = $value->write();
if (strlen($stream) > 0) {
return $this->decode($stream);
}
return $stream;
}
<?php
/**
* This file will demonstrate opening a .torrent file and getting its
* contents. Run it from the command line and see the comment from the
* 'test.torrent' file in the tests/assets/ directory.
*/
require '../vendor/autoload.php';
use Bencode\Collection\Dictionary;
$dictionary = new Dictionary();
$torrent = file_get_contents('../tests/assets/test.torrent');
$dictionary->decode($torrent);
$buffer = $dictionary->write();
var_dump($buffer);
echo $buffer['comment'] . "\n";