603 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			603 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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namespace GuzzleHttp\Psr7;
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use Psr\Http\Message\UriInterface;
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/**
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 * PSR-7 URI implementation.
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 *
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 * @author Michael Dowling
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 * @author Tobias Schultze
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 * @author Matthew Weier O'Phinney
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 */
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class Uri implements UriInterface
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{
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    private static $schemes = [
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        'http'  => 80,
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        'https' => 443,
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    ];
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    private static $charUnreserved = 'a-zA-Z0-9_\-\.~';
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    private static $charSubDelims = '!\$&\'\(\)\*\+,;=';
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    private static $replaceQuery = ['=' => '%3D', '&' => '%26'];
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    /** @var string Uri scheme. */
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    private $scheme = '';
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    /** @var string Uri user info. */
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    private $userInfo = '';
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    /** @var string Uri host. */
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    private $host = '';
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    /** @var int|null Uri port. */
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    private $port;
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    /** @var string Uri path. */
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    private $path = '';
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    /** @var string Uri query string. */
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    private $query = '';
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    /** @var string Uri fragment. */
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    private $fragment = '';
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    /**
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     * @param string $uri URI to parse
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     */
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    public function __construct($uri = '')
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    {
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        if ($uri != '') {
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            $parts = parse_url($uri);
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            if ($parts === false) {
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                throw new \InvalidArgumentException("Unable to parse URI: $uri");
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            }
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            $this->applyParts($parts);
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        }
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    }
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    public function __toString()
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    {
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        return self::createUriString(
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            $this->scheme,
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            $this->getAuthority(),
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            $this->path,
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            $this->query,
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            $this->fragment
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        );
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    }
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    /**
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     * Removes dot segments from a path and returns the new path.
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     *
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     * @param string $path
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     *
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     * @return string
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     * @link http://tools.ietf.org/html/rfc3986#section-5.2.4
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     */
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    public static function removeDotSegments($path)
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    {
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        static $noopPaths = ['' => true, '/' => true, '*' => true];
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        static $ignoreSegments = ['.' => true, '..' => true];
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        if (isset($noopPaths[$path])) {
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            return $path;
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        }
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        $results = [];
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        $segments = explode('/', $path);
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        foreach ($segments as $segment) {
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            if ($segment === '..') {
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                array_pop($results);
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            } elseif (!isset($ignoreSegments[$segment])) {
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                $results[] = $segment;
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            }
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        }
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        $newPath = implode('/', $results);
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        // Add the leading slash if necessary
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        if (substr($path, 0, 1) === '/' &&
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            substr($newPath, 0, 1) !== '/'
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        ) {
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            $newPath = '/' . $newPath;
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        }
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        // Add the trailing slash if necessary
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        if ($newPath !== '/' && isset($ignoreSegments[end($segments)])) {
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            $newPath .= '/';
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        }
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        return $newPath;
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    }
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    /**
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     * Resolve a base URI with a relative URI and return a new URI.
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     *
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     * @param UriInterface        $base Base URI
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     * @param string|UriInterface $rel  Relative URI
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     *
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     * @return UriInterface
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     * @link http://tools.ietf.org/html/rfc3986#section-5.2
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     */
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    public static function resolve(UriInterface $base, $rel)
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    {
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        if (!($rel instanceof UriInterface)) {
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            $rel = new self($rel);
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        }
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        if ((string) $rel === '') {
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            // we can simply return the same base URI instance for this same-document reference
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            return $base;
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        }
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        if ($rel->getScheme() != '') {
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            return $rel->withPath(self::removeDotSegments($rel->getPath()));
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        }
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        if ($rel->getAuthority() != '') {
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            $targetAuthority = $rel->getAuthority();
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            $targetPath = self::removeDotSegments($rel->getPath());
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            $targetQuery = $rel->getQuery();
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        } else {
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            $targetAuthority = $base->getAuthority();
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            if ($rel->getPath() === '') {
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                $targetPath = $base->getPath();
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                $targetQuery = $rel->getQuery() != '' ? $rel->getQuery() : $base->getQuery();
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            } else {
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                if ($rel->getPath()[0] === '/') {
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                    $targetPath = $rel->getPath();
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                } else {
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                    if ($targetAuthority != '' && $base->getPath() === '') {
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                        $targetPath = '/' . $rel->getPath();
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                    } else {
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                        $lastSlashPos = strrpos($base->getPath(), '/');
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                        if ($lastSlashPos === false) {
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                            $targetPath = $rel->getPath();
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                        } else {
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                            $targetPath = substr($base->getPath(), 0, $lastSlashPos + 1) . $rel->getPath();
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                        }
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                    }
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                }
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                $targetPath = self::removeDotSegments($targetPath);
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                $targetQuery = $rel->getQuery();
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            }
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        }
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        return new self(self::createUriString(
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            $base->getScheme(),
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            $targetAuthority,
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            $targetPath,
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            $targetQuery,
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            $rel->getFragment()
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        ));
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    }
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    /**
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     * Create a new URI with a specific query string value removed.
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     *
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     * Any existing query string values that exactly match the provided key are
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     * removed.
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     *
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     * @param UriInterface $uri URI to use as a base.
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     * @param string       $key Query string key to remove.
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     *
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     * @return UriInterface
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     */
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    public static function withoutQueryValue(UriInterface $uri, $key)
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    {
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        $current = $uri->getQuery();
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        if ($current == '') {
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            return $uri;
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        }
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        $decodedKey = rawurldecode($key);
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        $result = array_filter(explode('&', $current), function ($part) use ($decodedKey) {
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            return rawurldecode(explode('=', $part)[0]) !== $decodedKey;
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        });
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        return $uri->withQuery(implode('&', $result));
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    }
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    /**
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     * Create a new URI with a specific query string value.
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     *
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     * Any existing query string values that exactly match the provided key are
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     * removed and replaced with the given key value pair.
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     *
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     * A value of null will set the query string key without a value, e.g. "key"
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     * instead of "key=value".
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     *
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     * @param UriInterface $uri   URI to use as a base.
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     * @param string       $key   Key to set.
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     * @param string|null  $value Value to set
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     *
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     * @return UriInterface
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     */
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    public static function withQueryValue(UriInterface $uri, $key, $value)
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    {
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        $current = $uri->getQuery();
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        if ($current == '') {
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            $result = [];
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        } else {
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            $decodedKey = rawurldecode($key);
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            $result = array_filter(explode('&', $current), function ($part) use ($decodedKey) {
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                return rawurldecode(explode('=', $part)[0]) !== $decodedKey;
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            });
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        }
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        // Query string separators ("=", "&") within the key or value need to be encoded
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        // (while preventing double-encoding) before setting the query string. All other
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        // chars that need percent-encoding will be encoded by withQuery().
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        $key = strtr($key, self::$replaceQuery);
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        if ($value !== null) {
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            $result[] = $key . '=' . strtr($value, self::$replaceQuery);
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        } else {
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            $result[] = $key;
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        }
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        return $uri->withQuery(implode('&', $result));
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    }
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    /**
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     * Create a URI from a hash of parse_url parts.
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     *
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     * @param array $parts
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     *
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     * @return self
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     */
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    public static function fromParts(array $parts)
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    {
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        $uri = new self();
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        $uri->applyParts($parts);
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        return $uri;
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    }
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    public function getScheme()
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    {
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        return $this->scheme;
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    }
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    public function getAuthority()
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    {
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        if ($this->host == '') {
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            return '';
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        }
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        $authority = $this->host;
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        if ($this->userInfo != '') {
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            $authority = $this->userInfo . '@' . $authority;
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        }
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        if ($this->port !== null) {
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            $authority .= ':' . $this->port;
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        }
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        return $authority;
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    }
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    public function getUserInfo()
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    {
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        return $this->userInfo;
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    }
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    public function getHost()
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    {
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        return $this->host;
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    }
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    public function getPort()
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    {
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        return $this->port;
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    }
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    public function getPath()
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    {
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        return $this->path;
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    }
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    public function getQuery()
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    {
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        return $this->query;
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    }
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    public function getFragment()
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    {
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        return $this->fragment;
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    }
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    public function withScheme($scheme)
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    {
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        $scheme = $this->filterScheme($scheme);
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        if ($this->scheme === $scheme) {
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            return $this;
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        }
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        $new = clone $this;
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        $new->scheme = $scheme;
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        $new->port = $new->filterPort($new->port);
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        return $new;
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    }
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    public function withUserInfo($user, $password = null)
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    {
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        $info = $user;
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        if ($password != '') {
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            $info .= ':' . $password;
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        }
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        if ($this->userInfo === $info) {
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            return $this;
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        }
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        $new = clone $this;
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        $new->userInfo = $info;
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        return $new;
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    }
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    public function withHost($host)
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    {
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        $host = $this->filterHost($host);
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        if ($this->host === $host) {
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            return $this;
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        }
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        $new = clone $this;
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        $new->host = $host;
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        return $new;
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    }
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    public function withPort($port)
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    {
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        $port = $this->filterPort($port);
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        if ($this->port === $port) {
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            return $this;
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        }
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        $new = clone $this;
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        $new->port = $port;
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        return $new;
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    }
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    public function withPath($path)
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    {
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        $path = $this->filterPath($path);
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        if ($this->path === $path) {
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            return $this;
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        }
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        $new = clone $this;
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        $new->path = $path;
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        return $new;
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    }
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    public function withQuery($query)
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    {
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        $query = $this->filterQueryAndFragment($query);
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        if ($this->query === $query) {
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            return $this;
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        }
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        $new = clone $this;
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        $new->query = $query;
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        return $new;
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    }
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    public function withFragment($fragment)
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    {
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        $fragment = $this->filterQueryAndFragment($fragment);
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        if ($this->fragment === $fragment) {
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            return $this;
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        }
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        $new = clone $this;
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        $new->fragment = $fragment;
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        return $new;
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    }
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    /**
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     * Apply parse_url parts to a URI.
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     *
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     * @param array $parts Array of parse_url parts to apply.
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     */
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    private function applyParts(array $parts)
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    {
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        $this->scheme = isset($parts['scheme'])
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            ? $this->filterScheme($parts['scheme'])
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            : '';
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        $this->userInfo = isset($parts['user']) ? $parts['user'] : '';
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        $this->host = isset($parts['host'])
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            ? $this->filterHost($parts['host'])
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            : '';
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        $this->port = isset($parts['port'])
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            ? $this->filterPort($parts['port'])
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            : null;
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        $this->path = isset($parts['path'])
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            ? $this->filterPath($parts['path'])
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            : '';
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        $this->query = isset($parts['query'])
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            ? $this->filterQueryAndFragment($parts['query'])
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            : '';
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        $this->fragment = isset($parts['fragment'])
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            ? $this->filterQueryAndFragment($parts['fragment'])
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            : '';
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        if (isset($parts['pass'])) {
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            $this->userInfo .= ':' . $parts['pass'];
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        }
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    }
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    /**
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     * Create a URI string from its various parts
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     *
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     * @param string $scheme
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     * @param string $authority
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     * @param string $path
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     * @param string $query
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     * @param string $fragment
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     * @return string
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     */
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    private static function createUriString($scheme, $authority, $path, $query, $fragment)
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    {
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        $uri = '';
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        if ($scheme != '') {
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            $uri .= $scheme . ':';
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        }
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        if ($authority != '') {
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            $uri .= '//' . $authority;
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        }
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        if ($path != '') {
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            if ($path[0] !== '/') {
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                if ($authority != '') {
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                    // If the path is rootless and an authority is present, the path MUST be prefixed by "/"
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                    $path = '/' . $path;
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                }
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            } elseif (isset($path[1]) && $path[1] === '/') {
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                if ($authority == '') {
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                    // If the path is starting with more than one "/" and no authority is present, the
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                    // starting slashes MUST be reduced to one.
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                    $path = '/' . ltrim($path, '/');
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                }
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            }
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            $uri .= $path;
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        }
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        if ($query != '') {
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            $uri .= '?' . $query;
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        }
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        if ($fragment != '') {
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            $uri .= '#' . $fragment;
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        }
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        return $uri;
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    }
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    /**
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     * Is a given port non-standard for the current scheme?
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     *
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     * @param string $scheme
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     * @param int    $port
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     *
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     * @return bool
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     */
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    private static function isNonStandardPort($scheme, $port)
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    {
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        return !isset(self::$schemes[$scheme]) || $port !== self::$schemes[$scheme];
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    }
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    /**
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     * @param string $scheme
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						|
     *
 | 
						|
     * @return string
 | 
						|
     *
 | 
						|
     * @throws \InvalidArgumentException If the scheme is invalid.
 | 
						|
     */
 | 
						|
    private function filterScheme($scheme)
 | 
						|
    {
 | 
						|
        if (!is_string($scheme)) {
 | 
						|
            throw new \InvalidArgumentException('Scheme must be a string');
 | 
						|
        }
 | 
						|
 | 
						|
        return strtolower($scheme);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param string $host
 | 
						|
     *
 | 
						|
     * @return string
 | 
						|
     *
 | 
						|
     * @throws \InvalidArgumentException If the host is invalid.
 | 
						|
     */
 | 
						|
    private function filterHost($host)
 | 
						|
    {
 | 
						|
        if (!is_string($host)) {
 | 
						|
            throw new \InvalidArgumentException('Host must be a string');
 | 
						|
        }
 | 
						|
 | 
						|
        return strtolower($host);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int|null $port
 | 
						|
     *
 | 
						|
     * @return int|null
 | 
						|
     *
 | 
						|
     * @throws \InvalidArgumentException If the port is invalid.
 | 
						|
     */
 | 
						|
    private function filterPort($port)
 | 
						|
    {
 | 
						|
        if ($port === null) {
 | 
						|
            return null;
 | 
						|
        }
 | 
						|
 | 
						|
        $port = (int) $port;
 | 
						|
        if (1 > $port || 0xffff < $port) {
 | 
						|
            throw new \InvalidArgumentException(
 | 
						|
                sprintf('Invalid port: %d. Must be between 1 and 65535', $port)
 | 
						|
            );
 | 
						|
        }
 | 
						|
 | 
						|
        return self::isNonStandardPort($this->scheme, $port) ? $port : null;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Filters the path of a URI
 | 
						|
     *
 | 
						|
     * @param string $path
 | 
						|
     *
 | 
						|
     * @return string
 | 
						|
     *
 | 
						|
     * @throws \InvalidArgumentException If the path is invalid.
 | 
						|
     */
 | 
						|
    private function filterPath($path)
 | 
						|
    {
 | 
						|
        if (!is_string($path)) {
 | 
						|
            throw new \InvalidArgumentException('Path must be a string');
 | 
						|
        }
 | 
						|
 | 
						|
        return preg_replace_callback(
 | 
						|
            '/(?:[^' . self::$charUnreserved . self::$charSubDelims . '%:@\/]++|%(?![A-Fa-f0-9]{2}))/',
 | 
						|
            [$this, 'rawurlencodeMatchZero'],
 | 
						|
            $path
 | 
						|
        );
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Filters the query string or fragment of a URI.
 | 
						|
     *
 | 
						|
     * @param string $str
 | 
						|
     *
 | 
						|
     * @return string
 | 
						|
     *
 | 
						|
     * @throws \InvalidArgumentException If the query or fragment is invalid.
 | 
						|
     */
 | 
						|
    private function filterQueryAndFragment($str)
 | 
						|
    {
 | 
						|
        if (!is_string($str)) {
 | 
						|
            throw new \InvalidArgumentException('Query and fragment must be a string');
 | 
						|
        }
 | 
						|
 | 
						|
        return preg_replace_callback(
 | 
						|
            '/(?:[^' . self::$charUnreserved . self::$charSubDelims . '%:@\/\?]++|%(?![A-Fa-f0-9]{2}))/',
 | 
						|
            [$this, 'rawurlencodeMatchZero'],
 | 
						|
            $str
 | 
						|
        );
 | 
						|
    }
 | 
						|
 | 
						|
    private function rawurlencodeMatchZero(array $match)
 | 
						|
    {
 | 
						|
        return rawurlencode($match[0]);
 | 
						|
    }
 | 
						|
}
 |