Uri

18class Uri implements UriInterface19{20    private const SCHEMES = ['http' => 80, 'https' => 443];21    private const CHAR_UNRESERVED = 'a-zA-Z0-9_\-\.~';22    private const CHAR_SUB_DELIMS = '!\$&\'\(\)\*\+,;=';23    private const CHAR_GEN_DELIMS = ':\/\?#\[\]@';24    /** @var string Uri scheme. */25    private $scheme = '';26    /** @var string Uri user info. */27    private $userInfo = '';28    /** @var string Uri host. */29    private $host = '';30    /** @var int|null Uri port. */31    private $port;32    /** @var string Uri path. */33    private $path = '';34    /** @var string Uri query string. */35    private $query = '';36    /** @var string Uri fragment. */37    private $fragment = '';38    public function __construct(string $uri = '')39    {40        if ('' !== $uri) {41            if (\false === $parts = \parse_url($uri)) {42                throw new \InvalidArgumentException(\sprintf('Unable to parse URI: "%s"', $uri));43            }44            // Apply parse_url parts to a URI.45            $this->scheme = isset($parts['scheme']) ? \strtr($parts['scheme'], 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz') : '';46            $this->userInfo = $parts['user'] ?? '';47            $this->host = isset($parts['host']) ? \strtr($parts['host'], 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz') : '';48            $this->port = isset($parts['port']) ? $this->filterPort($parts['port']) : null;49            $this->path = isset($parts['path']) ? $this->filterPath($parts['path']) : '';50            $this->query = isset($parts['query']) ? $this->filterQueryAndFragment($parts['query']) : '';51            $this->fragment = isset($parts['fragment']) ? $this->filterQueryAndFragment($parts['fragment']) : '';52            if (isset($parts['pass'])) {53                $this->userInfo .= ':' . $parts['pass'];54            }55        }56    }57    public function __toString(): string58    {59        return self::createUriString($this->scheme, $this->getAuthority(), $this->path, $this->query, $this->fragment);60    }61    public function getScheme(): string62    {63        return $this->scheme;64    }65    public function getAuthority(): string66    {67        if ('' === $this->host) {68            return '';69        }70        $authority = $this->host;71        if ('' !== $this->userInfo) {72            $authority = $this->userInfo . '@' . $authority;73        }74        if (null !== $this->port) {75            $authority .= ':' . $this->port;76        }77        return $authority;78    }79    public function getUserInfo(): string80    {81        return $this->userInfo;82    }83    public function getHost(): string84    {85        return $this->host;86    }87    public function getPort(): ?int88    {89        return $this->port;90    }91    public function getPath(): string92    {93        $path = $this->path;94        if ('' !== $path && '/' !== $path[0]) {95            if ('' !== $this->host) {96                // If the path is rootless and an authority is present, the path MUST be prefixed by "/"97                $path = '/' . $path;