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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Feed;
class Uri
{
/**
* @var string
*/
protected $fragment;
/**
* @var string
*/
protected $host;
/**
* @var string
*/
protected $pass;
/**
* @var string
*/
protected $path;
/**
* @var int
*/
protected $port;
/**
* @var string
*/
protected $query;
/**
* @var string
*/
protected $scheme;
/**
* @var string
*/
protected $user;
/**
* @var bool
*/
protected $valid;
/**
* Valid schemes
*/
protected $validSchemes = [
'http',
'https',
'file',
];
/**
* @param string $uri
*/
public function __construct($uri)
{
$parsed = parse_url($uri);
if (false === $parsed) {
$this->valid = false;
return;
}
$this->scheme = isset($parsed['scheme']) ? $parsed['scheme'] : null;
$this->host = isset($parsed['host']) ? $parsed['host'] : null;
$this->port = isset($parsed['port']) ? $parsed['port'] : null;
$this->user = isset($parsed['user']) ? $parsed['user'] : null;
$this->pass = isset($parsed['pass']) ? $parsed['pass'] : null;
$this->path = isset($parsed['path']) ? $parsed['path'] : null;
$this->query = isset($parsed['query']) ? $parsed['query'] : null;
$this->fragment = isset($parsed['fragment']) ? $parsed['fragment'] : null;
}
/**
* Create an instance
*
* Useful for chained validations
*
* @param string $uri
* @return self
*/
public static function factory($uri)
{
return new static($uri);
}
/**
* Retrieve the host
*
* @return string
*/
public function getHost()
{
return $this->host;
}
/**
* Retrieve the URI path
*
* @return string
*/
public function getPath()
{
return $this->path;
}
/**
* Retrieve the scheme
*
* @return string
*/
public function getScheme()
{
return $this->scheme;
}
/**
* Is the URI valid?
*
* @return bool
*/
public function isValid()
{
if (false === $this->valid) {
return false;
}
if ($this->scheme && !in_array($this->scheme, $this->validSchemes)) {
return false;
}
if ($this->host) {
if ($this->path && substr($this->path, 0, 1) != '/') {
return false;
}
return true;
}
// no host, but user and/or port... what?
if ($this->user || $this->port) {
return false;
}
if ($this->path) {
// Check path-only (no host) URI
if (substr($this->path, 0, 2) == '//') {
return false;
}
return true;
}
if (! ($this->query || $this->fragment)) {
// No host, path, query or fragment - this is not a valid URI
return false;
}
return true;
}
/**
* Is the URI absolute?
*
* @return bool
*/
public function isAbsolute()
{
return ($this->scheme !== null);
}
}