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File Content: `Uri.php`

<?php

namespace React\Http\Message;

use Psr\Http\Message\UriInterface;

/**
 * Respresents a URI (or URL).
 *
 * This class implements the
 * [PSR-7 `UriInterface`](https://www.php-fig.org/psr/psr-7/#35-psrhttpmessageuriinterface).
 *
 * This is mostly used internally to represent the URI of each HTTP request
 * message for our HTTP client and server implementations. Likewise, you may
 * also use this class with other HTTP implementations and for tests.
 *
 * @see UriInterface
 */
final class Uri implements UriInterface
{
    /** @var string */
    private $scheme = '';

    /** @var string */
    private $userInfo = '';

    /** @var string */
    private $host = '';

    /** @var ?int */
    private $port = null;

    /** @var string */
    private $path = '';

    /** @var string */
    private $query = '';

    /** @var string */
    private $fragment = '';

    /**
     * @param string $uri
     * @throws \InvalidArgumentException if given $uri is invalid
     */
    public function __construct($uri)
    {
        // @codeCoverageIgnoreStart
        if (\PHP_VERSION_ID < 50407 && \strpos($uri, '//') === 0) {
            // @link https://3v4l.org/UrAQP
            $parts = \parse_url('http:' . $uri);
            unset($parts['schema']);
        } else {
            $parts = \parse_url($uri);
        }
        // @codeCoverageIgnoreEnd

        if ($parts === false || (isset($parts['scheme']) && !\preg_match('#^[a-z]+$#i', $parts['scheme'])) || (isset($parts['host']) && \preg_match('#[\s%+]#', $parts['host']))) {
            throw new \InvalidArgumentException('Invalid URI given');
        }

        if (isset($parts['scheme'])) {
            $this->scheme = \strtolower($parts['scheme']);
        }

        if (isset($parts['user']) || isset($parts['pass'])) {
            $this->userInfo = $this->encode(isset($parts['user']) ? $parts['user'] : '', \PHP_URL_USER) . (isset($parts['pass']) ? ':' . $this->encode($parts['pass'], \PHP_URL_PASS) : '');
        }

        if (isset($parts['host'])) {
            $this->host = \strtolower($parts['host']);
        }

        if (isset($parts['port']) && !(($parts['port'] === 80 && $this->scheme === 'http') || ($parts['port'] === 443 && $this->scheme === 'https'))) {
            $this->port = $parts['port'];
        }

        if (isset($parts['path'])) {
            $this->path = $this->encode($parts['path'], \PHP_URL_PATH);
        }

        if (isset($parts['query'])) {
            $this->query = $this->encode($parts['query'], \PHP_URL_QUERY);
        }

        if (isset($parts['fragment'])) {
            $this->fragment = $this->encode($parts['fragment'], \PHP_URL_FRAGMENT);
        }
    }

    public function getScheme()
    {
        return $this->scheme;
    }

    public function getAuthority()
    {
        if ($this->host === '') {
            return '';
        }

        return ($this->userInfo !== '' ? $this->userInfo . '@' : '') . $this->host . ($this->port !== null ? ':' . $this->port : '');
    }

    public function getUserInfo()
    {
        return $this->userInfo;
    }

    public function getHost()
    {
        return $this->host;
    }

    public function getPort()
    {
        return $this->port;
    }

    public function getPath()
    {
        return $this->path;
    }

    public function getQuery()
    {
        return $this->query;
    }

    public function getFragment()
    {
        return $this->fragment;
    }

    public function withScheme($scheme)
    {
        $scheme = \strtolower($scheme);
        if ($scheme === $this->scheme) {
            return $this;
        }

        if (!\preg_match('#^[a-z]*$#', $scheme)) {
            throw new \InvalidArgumentException('Invalid URI scheme given');
        }

        $new = clone $this;
        $new->scheme = $scheme;

        if (($this->port === 80 && $scheme === 'http') || ($this->port === 443 && $scheme === 'https')) {
            $new->port = null;
        }

        return $new;
    }

    public function withUserInfo($user, $password = null)
    {
        $userInfo = $this->encode($user, \PHP_URL_USER) . ($password !== null ? ':' . $this->encode($password, \PHP_URL_PASS) : '');
        if ($userInfo === $this->userInfo) {
            return $this;
        }

        $new = clone $this;
        $new->userInfo = $userInfo;

        return $new;
    }

    public function withHost($host)
    {
        $host = \strtolower($host);
        if ($host === $this->host) {
            return $this;
        }

        if (\preg_match('#[\s%+]#', $host) || ($host !== '' && \parse_url('http://' . $host, \PHP_URL_HOST) !== $host)) {
            throw new \InvalidArgumentException('Invalid URI host given');
        }

        $new = clone $this;
        $new->host = $host;

        return $new;
    }

    public function withPort($port)
    {
        $port = $port === null ? null : (int) $port;
        if (($port === 80 && $this->scheme === 'http') || ($port === 443 && $this->scheme === 'https')) {
            $port = null;
        }

        if ($port === $this->port) {
            return $this;
        }

        if ($port !== null && ($port < 1 || $port > 0xffff)) {
            throw new \InvalidArgumentException('Invalid URI port given');
        }

        $new = clone $this;
        $new->port = $port;

        return $new;
    }

    public function withPath($path)
    {
        $path = $this->encode($path, \PHP_URL_PATH);
        if ($path === $this->path) {
            return $this;
        }

        $new = clone $this;
        $new->path = $path;

        return $new;
    }

    public function withQuery($query)
    {
        $query = $this->encode($query, \PHP_URL_QUERY);
        if ($query === $this->query) {
            return $this;
        }

        $new = clone $this;
        $new->query = $query;

        return $new;
    }

    public function withFragment($fragment)
    {
        $fragment = $this->encode($fragment, \PHP_URL_FRAGMENT);
        if ($fragment === $this->fragment) {
            return $this;
        }

        $new = clone $this;
        $new->fragment = $fragment;

        return $new;
    }

    public function __toString()
    {
        $uri = '';
        if ($this->scheme !== '') {
            $uri .= $this->scheme . ':';
        }

        $authority = $this->getAuthority();
        if ($authority !== '') {
            $uri .= '//' . $authority;
        }

        if ($authority !== '' && isset($this->path[0]) && $this->path[0] !== '/') {
            $uri .= '/' . $this->path;
        } elseif ($authority === '' && isset($this->path[0]) && $this->path[0] === '/') {
            $uri .= '/' . \ltrim($this->path, '/');
        } else {
            $uri .= $this->path;
        }

        if ($this->query !== '') {
            $uri .= '?' . $this->query;
        }

        if ($this->fragment !== '') {
            $uri .= '#' . $this->fragment;
        }

        return $uri;
    }

    /**
     * @param string $part
     * @param int $component
     * @return string
     */
    private function encode($part, $component)
    {
        return \preg_replace_callback(
            '/(?:[^a-z0-9_\-\.~!\$&\'\(\)\*\+,;=' . ($component === \PHP_URL_PATH ? ':@\/' : ($component === \PHP_URL_QUERY || $component === \PHP_URL_FRAGMENT ? ':@\/\?' : '')) . '%]++|%(?![a-f0-9]{2}))/i',
            function (array $match) {
                return \rawurlencode($match[0]);
            },
            $part
        );
    }

    /**
     * [Internal] Resolve URI relative to base URI and return new absolute URI
     *
     * @internal
     * @param UriInterface $base
     * @param UriInterface $rel
     * @return UriInterface
     * @throws void
     */
    public static function resolve(UriInterface $base, UriInterface $rel)
    {
        if ($rel->getScheme() !== '') {
            return $rel->getPath() === '' ? $rel : $rel->withPath(self::removeDotSegments($rel->getPath()));
        }

        $reset = false;
        $new = $base;
        if ($rel->getAuthority() !== '') {
            $reset = true;
            $userInfo = \explode(':', $rel->getUserInfo(), 2);
            $new = $base->withUserInfo($userInfo[0], isset($userInfo[1]) ? $userInfo[1]: null)->withHost($rel->getHost())->withPort($rel->getPort());
        }

        if ($reset && $rel->getPath() === '') {
            $new = $new->withPath('');
        } elseif (($path = $rel->getPath()) !== '') {
            $start = '';
            if ($path === '' || $path[0] !== '/') {
                $start = $base->getPath();
                if (\substr($start, -1) !== '/') {
                    $start .= '/../';
                }
            }
            $reset = true;
            $new = $new->withPath(self::removeDotSegments($start . $path));
        }
        if ($reset || $rel->getQuery() !== '') {
            $reset = true;
            $new = $new->withQuery($rel->getQuery());
        }
        if ($reset || $rel->getFragment() !== '') {
            $new = $new->withFragment($rel->getFragment());
        }

        return $new;
    }

    /**
     * @param string $path
     * @return string
     */
    private static function removeDotSegments($path)
    {
        $segments = array();
        foreach (\explode('/', $path) as $segment) {
            if ($segment === '..') {
                \array_pop($segments);
            } elseif ($segment !== '.' && $segment !== '') {
                $segments[] = $segment;
            }
        }
        return '/' . \implode('/', $segments) . ($path !== '/' && \substr($path, -1) === '/' ? '/' : '');
    }
}
Name	Size	Permission
Request.php	2230 bytes	0644
Response.php	14839 bytes	0644
ResponseException.php	1241 bytes	0644
ServerRequest.php	12055 bytes	0644
Uri.php	9625 bytes	0644
File Content: Uri.php

File Content: `Uri.php`
