rendered paste body<?php class BEncodeUnserializer { private $_source = ''; //Source string private $_source_length = 0; //Source length private $_position = 0; //Current position of the string /** * Decode a Bencoded string * * @param string * @return mixed */ public function Unserialize($str) { $this->_source = $str; $this->_position = 0; $this->_source_length = strlen($this->_source); return $this->_bDecode(); } private function _bDecode() { switch ($this->_getChar()) { case 'i': $this->_position++; return $this->_decode_int(); break; case 'l': $this->_position++; return $this->_decode_list(); break; case 'd': $this->_position++; return $this->_decode_dict(); break; default: return $this->_decode_string(); } } private function _decode_dict() { while ($char = $this->_getChar()) { if ($char == 'e') break; $key = $this->_decode_string(); $val = $this->_bDecode(); $return[$key] = $val; } $this->_position++; return $return; } private function _decode_string() { if(!$pos_colon = @strpos($this->_source, ':', $this->_position)) return false; $str_length = intval(substr($this->_source, $this->_position, $pos_colon)); // Get length of string $return = substr($this->_source, $pos_colon + 1, $str_length); // Get string $this->_position = $pos_colon + $str_length + 1; // Move Pointer after string return $return; } private function _decode_int() { $pos_e = strpos($this->_source, 'e', $this->_position); $return = intval(substr($this->_source, $this->_position, $pos_e - $this->_position)); $this->_position = $pos_e + 1; return $return; } private function _decode_list() { $return = array(); $char = $this->_getChar(); while ($this->_source{$this->_position} != 'e') { $val = $this->_bDecode(); $return[] = $val; } $this->_position++; return $return; } private function _getChar() { if (empty($this->_source)) return false; if ($this->_position >= $this->_source_length) return false; return $this->_source{$this->_position}; } }?>