/**
* Resolve a base URI with a relative URI and return a new URI.
*
* @param UriInterface $base Base URI
* @param null|string|UriInterface $rel Relative URI
*
* @throws \InvalidArgumentException
*
* @return UriInterface
*/
public static function resolve(UriInterface $base, $rel = null)
{
if ($rel === null || $rel === '') {
return $base;
}
if (!$rel instanceof UriInterface) {
$rel = new self($rel);
}
// Return the relative uri as-is if it has a scheme.
if ($rel->getScheme()) {
return $rel->withPath(static::removeDotSegments($rel->getPath()));
}
$relParts = ['scheme' => $rel->getScheme(), 'authority' => $rel->getAuthority(), 'path' => $rel->getPath(), 'query' => $rel->getQuery(), 'fragment' => $rel->getFragment()];
$parts = ['scheme' => $base->getScheme(), 'authority' => $base->getAuthority(), 'path' => $base->getPath(), 'query' => $base->getQuery(), 'fragment' => $base->getFragment()];
if (!empty($relParts['path'])) {
if (strpos($relParts['path'], '/') === 0) {
$parts['path'] = self::removeDotSegments($relParts['path']);
$parts['query'] = $relParts['query'];
$parts['fragment'] = $relParts['fragment'];
} else {
$mergedPath = substr($parts['path'], 0, strrpos($parts['path'], '/') + 1);
$parts['path'] = self::removeDotSegments($mergedPath . $relParts['path']);
$parts['query'] = $relParts['query'];
$parts['fragment'] = $relParts['fragment'];
}
} elseif (!empty($relParts['query'])) {
$parts['query'] = $relParts['query'];
} elseif ($relParts['fragment'] !== null) {
$parts['fragment'] = $relParts['fragment'];
}
return new self(static::createUriString($parts['scheme'], $parts['authority'], $parts['path'], $parts['query'], $parts['fragment']));
}
/**
* Resolve a base URI with a relative URI and return a new URI.
*
* @param UriInterface $base Base URI
* @param string|UriInterface $rel Relative URI
*
* @return UriInterface
* @link http://tools.ietf.org/html/rfc3986#section-5.2
*/
public static function resolve(UriInterface $base, $rel)
{
if (!$rel instanceof UriInterface) {
$rel = new self($rel);
}
if ((string) $rel === '') {
// we can simply return the same base URI instance for this same-document reference
return $base;
}
if ($rel->getScheme() != '') {
return $rel->withPath(self::removeDotSegments($rel->getPath()));
}
if ($rel->getAuthority() != '') {
$targetAuthority = $rel->getAuthority();
$targetPath = self::removeDotSegments($rel->getPath());
$targetQuery = $rel->getQuery();
} else {
$targetAuthority = $base->getAuthority();
if ($rel->getPath() === '') {
$targetPath = $base->getPath();
$targetQuery = $rel->getQuery() != '' ? $rel->getQuery() : $base->getQuery();
} else {
if ($rel->getPath()[0] === '/') {
$targetPath = $rel->getPath();
} else {
if ($targetAuthority != '' && $base->getPath() === '') {
$targetPath = '/' . $rel->getPath();
} else {
$lastSlashPos = strrpos($base->getPath(), '/');
if ($lastSlashPos === false) {
$targetPath = $rel->getPath();
} else {
$targetPath = substr($base->getPath(), 0, $lastSlashPos + 1) . $rel->getPath();
}
}
}
$targetPath = self::removeDotSegments($targetPath);
$targetQuery = $rel->getQuery();
}
}
return new self(self::createUriString($base->getScheme(), $targetAuthority, $targetPath, $targetQuery, $rel->getFragment()));
}
