UriBuilder.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\WebDAV\Mount;
 
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\UriInterface;
use ILIAS\WebDAV\Config;
 
class UriBuilder
{
    private const array SCHEMAS = [
        'default' => 'http',
        'konqueror' => 'webdav',
        'nautilus' => 'dav',
    ];
 
    private ?UriInterface $uri = null;
    private ?string $host = null;
    private ?string $base_path = null;
 
    public function __construct(
        private ServerRequestInterface $request,
        private Config $config
    ) {
    }
 
    private function uri(): UriInterface
    {
        return $this->uri ??= $this->request->getUri();
    }
 
    private function host(): string
    {
        if ($this->host !== null) {
            return $this->host;
        }
        $host = $this->uri()->getHost();
        $port = $this->uri()->getPort();
        if ($port !== null && !in_array($port, [80, 443], true)) {
            $host .= ':' . $port;
        }
        return $this->host = $host;
    }
 
    private function basePath(): string
    {
        return $this->base_path ??= $this->resolveBasePath($this->uri()->getPath());
    }
 
    private function resolveBasePath(string $original_path): string
    {
        $endpoint = $this->config->getEndpoint();
        $segments = explode('/', $original_path);
 
        if (in_array($endpoint, $segments, true)) {
            $kept = [];
            foreach ($segments as $segment) {
                $kept[] = $segment;
                if ($segment === $endpoint) {
                    break;
                }
            }
            return implode('/', $kept);
        }
 
        $kept = array_slice($segments, 0, -1);
        return implode('/', $kept) . '/' . $endpoint;
    }
 
    public function getWebDavDefaultUri(int $ref_id): string
    {
        return $this->buildSchemedUri('default', $this->getWebDavPathToRef($ref_id));
    }
 
    public function getWebDavKonquerorUri(int $ref_id): string
    {
        return $this->buildSchemedUri('konqueror', $this->getWebDavPathToRef($ref_id));
    }
 
    public function getWebDavNautilusUri(int $ref_id): string
    {
        return $this->buildSchemedUri('nautilus', $this->getWebDavPathToRef($ref_id));
    }
 
    public function getUriToMountInstructionModalByRef(int $ref_id): string
    {
        return $this->getWebDavPathToRef($ref_id) . '?' . $this->config->getMountInstructionsQuery();
    }
 
    public function getUriToMountInstructionModalByLanguage(string $language): string
    {
        return $this->getWebDavBasePath() . '/' . $language . '?' . $this->config->getMountInstructionsQuery();
    }
 
    private function getWebDavPathToRef(int $ref_id): string
    {
        return $this->getWebDavBasePath() . '/ref_' . $ref_id;
    }
 
    private function getWebDavBasePath(): string
    {
        if ($this->config->prependClientName() && $this->config->getClientId() !== '') {
            return $this->basePath() . '/' . $this->config->getClientId();
        }
        return $this->basePath();
    }
 
    private function buildSchemedUri(string $placeholder, string $path): string
    {
        $scheme = self::SCHEMAS[$placeholder];
        if ($this->uri()->getScheme() === 'https') {
            $scheme .= 's';
        }
        return $scheme . '://' . $this->host() . $path;
    }
}