Réécriture du wall de deblan

<?php

class WallException extends Exception {}

class Wall {
	private $curl      = null;
	private $language  = 'html';
	private $code      = null;
	private $title     = null;
	private $showLines = true;

	private static $instance = null;

	public static function getInstance() {
		return (self::$instance === null) ? self::$instance = new Wall() : self::$instance;
	}

	public function __construct() {
		$this->curl = curl_init();
	}

	public function setCode($code) {
		$this->code = $code;
		return $this;
	}

	public function setCodeFromFile($file) {
		$this->code = (file_exists($file) && is_readable($file)) ? file_get_contents($file) : '';
		return $this;
	}

	public function getCode() {
		return $this->code;
	}

	public function setLanguage($language) {
		$this->language = $language;
		return $this;
	}	

	public function getLanguage() {
		return $this->language;
	}

	public function setTitle($title) {
		$this->title = $title;
		return $this;
	}	

	public function getTitle() {
		return $this->title;
	}

	public function setShowLines($showLines) {
		$this->showLines = (bool)$showLines;
		return $this;
	}

	public function getShowLines() {
		return $this->showLines;
	}

	public function paste() {
		$options = array(
			CURLOPT_URL            => 'http://wall.deblan.fr/',
			CURLOPT_HEADER         => true,
			CURLOPT_FOLLOWLOCATION => true,
			CURLOPT_RETURNTRANSFER => true,
			CURLOPT_POST           => true,
			CURLOPT_POSTFIELDS     => http_build_query(array(
				'code'     => $this->getCode(),
				'language' => $this->getLanguage(),
				'title'    => $this->getTitle(),
				'line'     => $this->getShowLines()
			))
		);

		curl_setopt_array($this->curl, $options);

		$header = curl_exec($this->curl); 
		
		if(curl_errno($this->curl)) {
			throw new WallException('Curl error: '.curl_error($this->curl));
		}
		else {
			$http_code = curl_getinfo($this->curl, CURLINFO_HTTP_CODE);
			if(in_array($http_code, array(301, 302, 200))) {
				preg_match('`location: ([^\s]+)`i', $header, $matches);
				return 'http://wall.deblan.fr'.trim(array_pop($matches));
			} else {
				throw new WallException('HTTP header error: unexpected response code ('.$http_code.')');
			} 
		}
	}
}

try {
	$wall = Wall::getInstance()
		->setCodeFromFile(__FILE__)
		// html, js, xml, javascript, sql, 
		// perl, c, asp, python, bash
		// actionscript, texte
		->setLanguage('html')
		->setTitle('foo')
		->paste();

	echo 'Url: '.$wall;
}
catch(WallException $e) {
	echo $e->getMessage();
}