742 lines
21 KiB
PHP
742 lines
21 KiB
PHP
<?php
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declare(strict_types=1);
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namespace GuzzleHttp\Psr7;
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use GuzzleHttp\Psr7\Exception\MalformedUriException;
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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, \JsonSerializable
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{
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/**
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* Absolute http and https URIs require a host per RFC 7230 Section 2.7
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* but in generic URIs the host can be empty. So for http(s) URIs
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* we apply this default host when no host is given yet to form a
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* valid URI.
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*/
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private const HTTP_DEFAULT_HOST = 'localhost';
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private const DEFAULT_PORTS = [
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'http' => 80,
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'https' => 443,
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'ftp' => 21,
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'gopher' => 70,
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'nntp' => 119,
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'news' => 119,
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'telnet' => 23,
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'tn3270' => 23,
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'imap' => 143,
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'pop' => 110,
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'ldap' => 389,
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];
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/**
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* Unreserved characters for use in a regex.
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*
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* @see https://tools.ietf.org/html/rfc3986#section-2.3
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*/
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private const CHAR_UNRESERVED = 'a-zA-Z0-9_\-\.~';
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/**
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* Sub-delims for use in a regex.
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*
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* @see https://tools.ietf.org/html/rfc3986#section-2.2
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*/
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private const CHAR_SUB_DELIMS = '!\$&\'\(\)\*\+,;=';
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private const QUERY_SEPARATORS_REPLACEMENT = ['=' => '%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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/** @var string|null String representation */
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private $composedComponents;
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public function __construct(string $uri = '')
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{
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if ($uri !== '') {
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$parts = self::parse($uri);
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if ($parts === false) {
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throw new MalformedUriException("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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/**
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* UTF-8 aware \parse_url() replacement.
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*
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* The internal function produces broken output for non ASCII domain names
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* (IDN) when used with locales other than "C".
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*
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* On the other hand, cURL understands IDN correctly only when UTF-8 locale
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* is configured ("C.UTF-8", "en_US.UTF-8", etc.).
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*
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* @see https://bugs.php.net/bug.php?id=52923
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* @see https://www.php.net/manual/en/function.parse-url.php#114817
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* @see https://curl.haxx.se/libcurl/c/CURLOPT_URL.html#ENCODING
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*
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* @return array|false
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*/
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private static function parse(string $url)
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{
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// If IPv6
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$prefix = '';
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if (preg_match('%^(.*://\[[0-9:a-f]+\])(.*?)$%', $url, $matches)) {
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/** @var array{0:string, 1:string, 2:string} $matches */
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$prefix = $matches[1];
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$url = $matches[2];
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}
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/** @var string */
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$encodedUrl = preg_replace_callback(
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'%[^:/@?&=#]+%usD',
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static function ($matches) {
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return urlencode($matches[0]);
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},
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$url
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);
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$result = parse_url($prefix.$encodedUrl);
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if ($result === false) {
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return false;
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}
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return array_map('urldecode', $result);
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}
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public function __toString(): string
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{
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if ($this->composedComponents === null) {
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$this->composedComponents = self::composeComponents(
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$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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return $this->composedComponents;
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}
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/**
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* Composes a URI reference string from its various components.
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*
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* Usually this method does not need to be called manually but instead is used indirectly via
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* `Psr\Http\Message\UriInterface::__toString`.
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*
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* PSR-7 UriInterface treats an empty component the same as a missing component as
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* getQuery(), getFragment() etc. always return a string. This explains the slight
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* difference to RFC 3986 Section 5.3.
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*
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* Another adjustment is that the authority separator is added even when the authority is missing/empty
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* for the "file" scheme. This is because PHP stream functions like `file_get_contents` only work with
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* `file:///myfile` but not with `file:/myfile` although they are equivalent according to RFC 3986. But
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* `file:///` is the more common syntax for the file scheme anyway (Chrome for example redirects to
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* that format).
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*
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* @see https://tools.ietf.org/html/rfc3986#section-5.3
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*/
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public static function composeComponents(?string $scheme, ?string $authority, string $path, ?string $query, ?string $fragment): string
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{
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$uri = '';
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// weak type checks to also accept null until we can add scalar type hints
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if ($scheme != '') {
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$uri .= $scheme.':';
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}
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if ($authority != '' || $scheme === 'file') {
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$uri .= '//'.$authority;
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}
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if ($authority != '' && $path != '' && $path[0] != '/') {
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$path = '/'.$path;
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}
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$uri .= $path;
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if ($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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* Whether the URI has the default port of the current scheme.
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*
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* `Psr\Http\Message\UriInterface::getPort` may return null or the standard port. This method can be used
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* independently of the implementation.
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*/
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public static function isDefaultPort(UriInterface $uri): bool
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{
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return $uri->getPort() === null
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|| (isset(self::DEFAULT_PORTS[$uri->getScheme()]) && $uri->getPort() === self::DEFAULT_PORTS[$uri->getScheme()]);
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}
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/**
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* Whether the URI is absolute, i.e. it has a scheme.
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*
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* An instance of UriInterface can either be an absolute URI or a relative reference. This method returns true
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* if it is the former. An absolute URI has a scheme. A relative reference is used to express a URI relative
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* to another URI, the base URI. Relative references can be divided into several forms:
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* - network-path references, e.g. '//example.com/path'
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* - absolute-path references, e.g. '/path'
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* - relative-path references, e.g. 'subpath'
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*
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* @see Uri::isNetworkPathReference
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* @see Uri::isAbsolutePathReference
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* @see Uri::isRelativePathReference
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* @see https://tools.ietf.org/html/rfc3986#section-4
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*/
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public static function isAbsolute(UriInterface $uri): bool
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{
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return $uri->getScheme() !== '';
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}
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/**
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* Whether the URI is a network-path reference.
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*
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* A relative reference that begins with two slash characters is termed an network-path reference.
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*
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* @see https://tools.ietf.org/html/rfc3986#section-4.2
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*/
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public static function isNetworkPathReference(UriInterface $uri): bool
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{
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return $uri->getScheme() === '' && $uri->getAuthority() !== '';
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}
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/**
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* Whether the URI is a absolute-path reference.
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*
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* A relative reference that begins with a single slash character is termed an absolute-path reference.
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*
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* @see https://tools.ietf.org/html/rfc3986#section-4.2
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*/
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public static function isAbsolutePathReference(UriInterface $uri): bool
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{
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return $uri->getScheme() === ''
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&& $uri->getAuthority() === ''
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&& isset($uri->getPath()[0])
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&& $uri->getPath()[0] === '/';
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}
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/**
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* Whether the URI is a relative-path reference.
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*
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* A relative reference that does not begin with a slash character is termed a relative-path reference.
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*
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* @see https://tools.ietf.org/html/rfc3986#section-4.2
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*/
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public static function isRelativePathReference(UriInterface $uri): bool
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{
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return $uri->getScheme() === ''
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&& $uri->getAuthority() === ''
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&& (!isset($uri->getPath()[0]) || $uri->getPath()[0] !== '/');
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}
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/**
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* Whether the URI is a same-document reference.
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*
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* A same-document reference refers to a URI that is, aside from its fragment
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* component, identical to the base URI. When no base URI is given, only an empty
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* URI reference (apart from its fragment) is considered a same-document reference.
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*
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* @param UriInterface $uri The URI to check
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* @param UriInterface|null $base An optional base URI to compare against
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*
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* @see https://tools.ietf.org/html/rfc3986#section-4.4
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*/
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public static function isSameDocumentReference(UriInterface $uri, UriInterface $base = null): bool
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{
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if ($base !== null) {
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$uri = UriResolver::resolve($base, $uri);
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return ($uri->getScheme() === $base->getScheme())
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&& ($uri->getAuthority() === $base->getAuthority())
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&& ($uri->getPath() === $base->getPath())
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&& ($uri->getQuery() === $base->getQuery());
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}
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return $uri->getScheme() === '' && $uri->getAuthority() === '' && $uri->getPath() === '' && $uri->getQuery() === '';
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}
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/**
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* Creates 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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public static function withoutQueryValue(UriInterface $uri, string $key): UriInterface
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{
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$result = self::getFilteredQueryString($uri, [$key]);
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return $uri->withQuery(implode('&', $result));
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}
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/**
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* Creates 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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public static function withQueryValue(UriInterface $uri, string $key, ?string $value): UriInterface
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{
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$result = self::getFilteredQueryString($uri, [$key]);
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$result[] = self::generateQueryString($key, $value);
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return $uri->withQuery(implode('&', $result));
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}
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/**
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* Creates a new URI with multiple specific query string values.
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*
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* It has the same behavior as withQueryValue() but for an associative array 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 array<string, string|null> $keyValueArray Associative array of key and values
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*/
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public static function withQueryValues(UriInterface $uri, array $keyValueArray): UriInterface
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{
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$result = self::getFilteredQueryString($uri, array_keys($keyValueArray));
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foreach ($keyValueArray as $key => $value) {
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$result[] = self::generateQueryString((string) $key, $value !== null ? (string) $value : null);
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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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* Creates a URI from a hash of `parse_url` components.
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*
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* @see http://php.net/manual/en/function.parse-url.php
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*
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* @throws MalformedUriException If the components do not form a valid URI.
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*/
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public static function fromParts(array $parts): UriInterface
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{
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$uri = new self();
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$uri->applyParts($parts);
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$uri->validateState();
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return $uri;
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}
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public function getScheme(): string
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{
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return $this->scheme;
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}
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public function getAuthority(): string
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{
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$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(): string
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{
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return $this->userInfo;
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}
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public function getHost(): string
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{
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return $this->host;
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}
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public function getPort(): ?int
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{
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return $this->port;
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}
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public function getPath(): string
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{
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return $this->path;
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}
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public function getQuery(): string
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{
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return $this->query;
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}
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public function getFragment(): string
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{
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return $this->fragment;
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}
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public function withScheme($scheme): UriInterface
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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->composedComponents = null;
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$new->removeDefaultPort();
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$new->validateState();
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return $new;
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}
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public function withUserInfo($user, $password = null): UriInterface
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{
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$info = $this->filterUserInfoComponent($user);
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if ($password !== null) {
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$info .= ':'.$this->filterUserInfoComponent($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 = $info;
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$new->composedComponents = null;
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$new->validateState();
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return $new;
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}
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public function withHost($host): UriInterface
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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 = $host;
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$new->composedComponents = null;
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$new->validateState();
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return $new;
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}
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public function withPort($port): UriInterface
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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 = $port;
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$new->composedComponents = null;
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$new->removeDefaultPort();
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$new->validateState();
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return $new;
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}
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public function withPath($path): UriInterface
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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 = $path;
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$new->composedComponents = null;
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$new->validateState();
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return $new;
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}
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public function withQuery($query): UriInterface
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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 = $query;
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$new->composedComponents = null;
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return $new;
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}
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public function withFragment($fragment): UriInterface
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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 = $fragment;
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$new->composedComponents = null;
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return $new;
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}
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|
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public function jsonSerialize(): string
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|
{
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return $this->__toString();
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}
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|
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/**
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|
* Apply parse_url parts to a URI.
|
|
*
|
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* @param array $parts Array of parse_url parts to apply.
|
|
*/
|
|
private function applyParts(array $parts): void
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|
{
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$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'])
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? $this->filterUserInfoComponent($parts['user'])
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: '';
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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 .= ':'.$this->filterUserInfoComponent($parts['pass']);
|
|
}
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|
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$this->removeDefaultPort();
|
|
}
|
|
|
|
/**
|
|
* @param mixed $scheme
|
|
*
|
|
* @throws \InvalidArgumentException If the scheme is invalid.
|
|
*/
|
|
private function filterScheme($scheme): string
|
|
{
|
|
if (!is_string($scheme)) {
|
|
throw new \InvalidArgumentException('Scheme must be a string');
|
|
}
|
|
|
|
return \strtr($scheme, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz');
|
|
}
|
|
|
|
/**
|
|
* @param mixed $component
|
|
*
|
|
* @throws \InvalidArgumentException If the user info is invalid.
|
|
*/
|
|
private function filterUserInfoComponent($component): string
|
|
{
|
|
if (!is_string($component)) {
|
|
throw new \InvalidArgumentException('User info must be a string');
|
|
}
|
|
|
|
return preg_replace_callback(
|
|
'/(?:[^%'.self::CHAR_UNRESERVED.self::CHAR_SUB_DELIMS.']+|%(?![A-Fa-f0-9]{2}))/',
|
|
[$this, 'rawurlencodeMatchZero'],
|
|
$component
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param mixed $host
|
|
*
|
|
* @throws \InvalidArgumentException If the host is invalid.
|
|
*/
|
|
private function filterHost($host): string
|
|
{
|
|
if (!is_string($host)) {
|
|
throw new \InvalidArgumentException('Host must be a string');
|
|
}
|
|
|
|
return \strtr($host, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz');
|
|
}
|
|
|
|
/**
|
|
* @param mixed $port
|
|
*
|
|
* @throws \InvalidArgumentException If the port is invalid.
|
|
*/
|
|
private function filterPort($port): ?int
|
|
{
|
|
if ($port === null) {
|
|
return null;
|
|
}
|
|
|
|
$port = (int) $port;
|
|
if (0 > $port || 0xFFFF < $port) {
|
|
throw new \InvalidArgumentException(
|
|
sprintf('Invalid port: %d. Must be between 0 and 65535', $port)
|
|
);
|
|
}
|
|
|
|
return $port;
|
|
}
|
|
|
|
/**
|
|
* @param string[] $keys
|
|
*
|
|
* @return string[]
|
|
*/
|
|
private static function getFilteredQueryString(UriInterface $uri, array $keys): array
|
|
{
|
|
$current = $uri->getQuery();
|
|
|
|
if ($current === '') {
|
|
return [];
|
|
}
|
|
|
|
$decodedKeys = array_map('rawurldecode', $keys);
|
|
|
|
return array_filter(explode('&', $current), function ($part) use ($decodedKeys) {
|
|
return !in_array(rawurldecode(explode('=', $part)[0]), $decodedKeys, true);
|
|
});
|
|
}
|
|
|
|
private static function generateQueryString(string $key, ?string $value): string
|
|
{
|
|
// Query string separators ("=", "&") within the key or value need to be encoded
|
|
// (while preventing double-encoding) before setting the query string. All other
|
|
// chars that need percent-encoding will be encoded by withQuery().
|
|
$queryString = strtr($key, self::QUERY_SEPARATORS_REPLACEMENT);
|
|
|
|
if ($value !== null) {
|
|
$queryString .= '='.strtr($value, self::QUERY_SEPARATORS_REPLACEMENT);
|
|
}
|
|
|
|
return $queryString;
|
|
}
|
|
|
|
private function removeDefaultPort(): void
|
|
{
|
|
if ($this->port !== null && self::isDefaultPort($this)) {
|
|
$this->port = null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters the path of a URI
|
|
*
|
|
* @param mixed $path
|
|
*
|
|
* @throws \InvalidArgumentException If the path is invalid.
|
|
*/
|
|
private function filterPath($path): string
|
|
{
|
|
if (!is_string($path)) {
|
|
throw new \InvalidArgumentException('Path must be a string');
|
|
}
|
|
|
|
return preg_replace_callback(
|
|
'/(?:[^'.self::CHAR_UNRESERVED.self::CHAR_SUB_DELIMS.'%:@\/]++|%(?![A-Fa-f0-9]{2}))/',
|
|
[$this, 'rawurlencodeMatchZero'],
|
|
$path
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Filters the query string or fragment of a URI.
|
|
*
|
|
* @param mixed $str
|
|
*
|
|
* @throws \InvalidArgumentException If the query or fragment is invalid.
|
|
*/
|
|
private function filterQueryAndFragment($str): string
|
|
{
|
|
if (!is_string($str)) {
|
|
throw new \InvalidArgumentException('Query and fragment must be a string');
|
|
}
|
|
|
|
return preg_replace_callback(
|
|
'/(?:[^'.self::CHAR_UNRESERVED.self::CHAR_SUB_DELIMS.'%:@\/\?]++|%(?![A-Fa-f0-9]{2}))/',
|
|
[$this, 'rawurlencodeMatchZero'],
|
|
$str
|
|
);
|
|
}
|
|
|
|
private function rawurlencodeMatchZero(array $match): string
|
|
{
|
|
return rawurlencode($match[0]);
|
|
}
|
|
|
|
private function validateState(): void
|
|
{
|
|
if ($this->host === '' && ($this->scheme === 'http' || $this->scheme === 'https')) {
|
|
$this->host = self::HTTP_DEFAULT_HOST;
|
|
}
|
|
|
|
if ($this->getAuthority() === '') {
|
|
if (0 === strpos($this->path, '//')) {
|
|
throw new MalformedUriException('The path of a URI without an authority must not start with two slashes "//"');
|
|
}
|
|
if ($this->scheme === '' && false !== strpos(explode('/', $this->path, 2)[0], ':')) {
|
|
throw new MalformedUriException('A relative URI must not have a path beginning with a segment containing a colon');
|
|
}
|
|
}
|
|
}
|
|
}
|