311 lines
7.8 KiB
PHP
311 lines
7.8 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Nyholm\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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* @author Tobias Nyholm <tobias.nyholm@gmail.com>
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* @author Martijn van der Ven <martijn@vanderven.se>
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*/
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final class Uri implements UriInterface
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{
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private const SCHEMES = ['http' => 80, 'https' => 443];
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private const CHAR_UNRESERVED = 'a-zA-Z0-9_\-\.~';
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private const CHAR_SUB_DELIMS = '!\$&\'\(\)\*\+,;=';
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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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public function __construct(string $uri = '')
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{
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if ('' !== $uri) {
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if (false === $parts = \parse_url($uri)) {
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throw new \InvalidArgumentException("Unable to parse URI: $uri");
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}
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// Apply parse_url parts to a URI.
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$this->scheme = isset($parts['scheme']) ? \strtolower($parts['scheme']) : '';
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$this->userInfo = $parts['user'] ?? '';
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$this->host = isset($parts['host']) ? \strtolower($parts['host']) : '';
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$this->port = isset($parts['port']) ? $this->filterPort($parts['port']) : null;
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$this->path = isset($parts['path']) ? $this->filterPath($parts['path']) : '';
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$this->query = isset($parts['query']) ? $this->filterQueryAndFragment($parts['query']) : '';
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$this->fragment = isset($parts['fragment']) ? $this->filterQueryAndFragment($parts['fragment']) : '';
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if (isset($parts['pass'])) {
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$this->userInfo .= ':' . $parts['pass'];
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}
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}
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}
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public function __toString(): string
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{
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return self::createUriString($this->scheme, $this->getAuthority(), $this->path, $this->query, $this->fragment);
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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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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 (null !== $this->port) {
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$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): self
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{
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if (!\is_string($scheme)) {
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throw new \InvalidArgumentException('Scheme must be a string');
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}
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if ($this->scheme === $scheme = \strtolower($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, $password = null): self
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{
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$info = $user;
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if (null !== $password && '' !== $password) {
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$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): self
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{
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if (!\is_string($host)) {
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throw new \InvalidArgumentException('Host must be a string');
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}
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if ($this->host === $host = \strtolower($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): self
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{
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if ($this->port === $port = $this->filterPort($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): self
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{
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if ($this->path === $path = $this->filterPath($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): self
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{
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if ($this->query === $query = $this->filterQueryAndFragment($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): self
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{
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if ($this->fragment === $fragment = $this->filterQueryAndFragment($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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* Create a URI string from its various parts.
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*/
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private static function createUriString(string $scheme, string $authority, string $path, string $query, string $fragment): string
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{
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$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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private static function isNonStandardPort(string $scheme, int $port): bool
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{
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return !isset(self::SCHEMES[$scheme]) || $port !== self::SCHEMES[$scheme];
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}
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private function filterPort($port): ?int
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{
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if (null === $port) {
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return null;
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}
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$port = (int) $port;
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if (0 > $port || 0xffff < $port) {
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throw new \InvalidArgumentException(\sprintf('Invalid port: %d. Must be between 0 and 65535', $port));
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}
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return self::isNonStandardPort($this->scheme, $port) ? $port : null;
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}
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private function filterPath($path): string
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{
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if (!\is_string($path)) {
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throw new \InvalidArgumentException('Path must be a string');
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}
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return \preg_replace_callback('/(?:[^' . self::CHAR_UNRESERVED . self::CHAR_SUB_DELIMS . '%:@\/]++|%(?![A-Fa-f0-9]{2}))/', [__CLASS__, 'rawurlencodeMatchZero'], $path);
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}
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private function filterQueryAndFragment($str): string
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{
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if (!\is_string($str)) {
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throw new \InvalidArgumentException('Query and fragment must be a string');
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}
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return \preg_replace_callback('/(?:[^' . self::CHAR_UNRESERVED . self::CHAR_SUB_DELIMS . '%:@\/\?]++|%(?![A-Fa-f0-9]{2}))/', [__CLASS__, 'rawurlencodeMatchZero'], $str);
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}
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private static function rawurlencodeMatchZero(array $match): string
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{
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return \rawurlencode($match[0]);
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}
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}
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