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<?php
namespace YOOtheme\Http\Message;
use Psr\Http\Message\UriInterface;
class Uri implements UriInterface
{
const PATH = '/(?:[^a-zA-Z0-9_\-\.~:@&=\+\$,\/;%]+|%(?![A-Fa-f0-9]{2}))/';
const QUERY = '/(?:[^a-zA-Z0-9_\-\.~!\$&\'\(\)\*\+,;=%:@\/\?]+|%(?![A-Fa-f0-9]{2}))/';
/**
* @var string
*/
protected $scheme = '';
/**
* @var string
*/
protected $userInfo = '';
/**
* @var string
*/
protected $host = '';
/**
* @var null|int
*/
protected $port;
/**
* @var string
*/
protected $path = '';
/**
* @var string
*/
protected $query = '';
/**
* @var string
*/
protected $fragment = '';
/**
* @var array
*/
protected static $schemes = [
'http' => 80,
'https' => 443,
];
/**
* Constructor.
*
* @param string $url
*/
public function __construct($url)
{
extract(parse_url($url));
$this->scheme = isset($scheme) ? static::filterScheme($scheme) : '';
$this->host = isset($host) ? $host : '';
$this->port = isset($port) ? static::filterPort($port) : null;
$this->path = empty($path) ? '' : static::filterPath($path);
$this->query = isset($query) ? static::filterQuery($query) : '';
$this->fragment = isset($fragment) ? static::filterQuery($fragment) : '';
$this->userInfo = isset($user) ? $user : '';
if (isset($pass)) {
$this->userInfo .= ":$pass";
}
}
/**
* Creates an instance from server globals.
*
* @param array $server
*
* @return static
*/
public static function fromGlobals(array $server = [])
{
if (!$server) {
$server = $_SERVER;
}
$http = isset($server['HTTPS']) ? 'https://' : 'http://';
$host = isset($server['HTTP_HOST']) ? $server['HTTP_HOST'] : '';
$path = isset($server['REQUEST_URI']) ? $server['REQUEST_URI'] : '';
return new static($http . $host . $path);
}
/**
* @inheritdoc
*/
public function getAuthority()
{
$port = $this->getPort();
$user = $this->getUserInfo();
return ($user ? $user . '@' : '') . $this->getHost() . ($port !== null ? ':' . $port : '');
}
/**
* @inheritdoc
*/
public function getScheme()
{
return $this->scheme;
}
/**
* @inheritdoc
*/
public function withScheme($scheme)
{
$clone = clone $this;
$clone->scheme = static::filterScheme($scheme);
return $clone;
}
/**
* @inheritdoc
*/
public function getUserInfo()
{
return $this->userInfo;
}
/**
* @inheritdoc
*/
public function withUserInfo($user, $password = null)
{
$userInfo = $user;
if ($password) {
$userInfo .= ":$password";
}
$clone = clone $this;
$clone->userInfo = $userInfo;
return $clone;
}
/**
* @inheritdoc
*/
public function getHost()
{
return $this->host;
}
/**
* @inheritdoc
*/
public function withHost($host)
{
$clone = clone $this;
$clone->host = $host;
return $clone;
}
/**
* @inheritdoc
*/
public function getPort()
{
if (
isset(static::$schemes[$this->scheme]) &&
$this->port == static::$schemes[$this->scheme]
) {
return;
}
return $this->port;
}
/**
* @inheritdoc
*/
public function withPort($port)
{
$clone = clone $this;
$clone->port = static::filterPort($port);
return $clone;
}
/**
* @inheritdoc
*/
public function getPath()
{
return $this->path;
}
/**
* @inheritdoc
*/
public function withPath($path)
{
$clone = clone $this;
$clone->path = static::filterPath($path);
return $clone;
}
/**
* @inheritdoc
*/
public function getQuery()
{
return $this->query;
}
/**
* @inheritdoc
*/
public function withQuery($query)
{
$clone = clone $this;
$clone->query = static::filterQuery(ltrim($query, '?'));
return $clone;
}
/**
* @inheritdoc
*/
public function getFragment()
{
return $this->fragment;
}
/**
* @inheritdoc
*/
public function withFragment($fragment)
{
$clone = clone $this;
$clone->fragment = static::filterQuery(ltrim($fragment, '#'));
return $clone;
}
/**
* @inheritdoc
*/
public function __toString()
{
$scheme = $this->getScheme();
$authority = $this->getAuthority();
$path = $this->getPath();
$query = $this->getQuery();
$fragment = $this->getFragment();
return ($scheme ? $scheme . ':' : '') .
($authority ? '//' . $authority : '') .
$path .
($query ? '?' . $query : '') .
($fragment ? '#' . $fragment : '');
}
/**
* Filter URI scheme.
*
* @param string $scheme
*
* @return string
*/
protected static function filterScheme($scheme)
{
$scheme = strtolower($scheme);
$scheme = rtrim($scheme, ':/');
if ($scheme !== '' && !isset(static::$schemes[$scheme])) {
throw new \InvalidArgumentException('Uri scheme must be one of: "", "http", "https"');
}
return $scheme;
}
/**
* Filter URI port.
*
* @param int|null $port
*
* @return int|null
*/
protected static function filterPort($port)
{
if (is_null($port) || (is_integer($port) && ($port >= 1 && $port <= 65535))) {
return $port;
}
throw new \InvalidArgumentException(
'Uri port must be null or an integer between 1 and 65535'
);
}
/**
* Filter URI path.
*
* @param string $path
*
* @return string
*/
protected static function filterPath($path)
{
return preg_replace_callback(
static::PATH,
function ($match) {
return rawurlencode($match[0]);
},
$path
);
}
/**
* Filters the query string or fragment of a URI.
*
* @param string $query
*
* @return string
*/
protected static function filterQuery($query)
{
return preg_replace_callback(
static::QUERY,
function ($match) {
return rawurlencode($match[0]);
},
$query
);
}
}