kiri-core/http-message/Message.php

<?php

namespace Protocol\Message;

use JetBrains\PhpStorm\Pure;
use Kiri\Core\Xml;
use Psr\Http\Message\StreamInterface;


/**
 *
 */
trait Message
{

    /**
     * @var string
     */
    protected string $version;


    /**
     * @var \Psr\Http\Message\StreamInterface
     */
    protected StreamInterface $stream;


    /**
     * @var array
     */
    protected array $headers = [];


    /**
     * @return string
     */
    public function getProtocolVersion(): string
    {
        return $this->version;
    }


    /**
     * @param $version
     * @return static
     */
    public function withProtocolVersion($version): static
    {
        $this->version = $version;
        return $this;
    }

    /**
     * @return array
     */
    public function getHeaders(): array
    {
        return $this->headers;
    }


    /**
     * @param $name
     * @return bool
     */
    public function hasHeader($name): bool
    {
        return array_key_exists($name, $this->headers);
    }


    /**
     * @param $name
     * @return string|array|null
     */
    #[Pure] public function getHeader($name): string|null|array
    {
        if (!$this->hasHeader($name)) {
            return null;
        }
        return $this->headers[$name];
    }


    /**
     * @param \Swoole\Http\Request $request
     * @return static
     */
    public function parseRequestHeaders(\Swoole\Http\Request $request): static
    {
        $index = strpos($request->getData(), "\r\n\r\n");
        $headers = explode("\r\n", substr($request->getData(), 0, $index));
        array_shift($headers);
        foreach ($headers as $header) {
            [$key, $value] = explode(': ', $header);
            $this->addRequestHeader($key, $value);
        }
        return $this;
    }


    /**
     * @param $key
     * @param $value
     */
    private function addRequestHeader($key, $value)
    {
        $this->headers[$key] = [$value];
    }


    /**
     * @param $name
     * @return string|null
     */
    #[Pure] public function getHeaderLine($name): string|null
    {
        if ($this->hasHeader($name)) {
            return implode(';', $this->headers[$name]);
        }
        return null;
    }


    /**
     * @return string|null
     */
    #[Pure] public function getContentType(): ?string
    {
        return $this->getHeaderLine('Content-Type');
    }


    /**
     * @param $name
     * @param $value
     * @return static
     */
    public function withHeader($name, $value): static
    {
        if (!is_array($value)) {
            $value = [$value];
        }
        $this->headers[$name] = $value;
        return $this;
    }


    /**
     * @param $name
     * @param $value
     * @return static
     * @throws
     */
    public function withAddedHeader($name, $value): static
    {
        if (!array_key_exists($name, $this->headers)) {
            throw new \Exception('Headers `' . $name . '` not exists.');
        }
        $this->headers[$name][] = $value;
        return $this;
    }


    /**
     * @param $name
     * @return static
     */
    public function withoutHeader($name): static
    {
        unset($this->headers[$name]);
        return $this;
    }


    /**
     * @return string
     */
    public function getBody(): string
    {
        return $this->stream->getContents();
    }


    /**
     * @param StreamInterface $body
     * @return static
     */
    public function withBody(StreamInterface $body): static
    {
        $this->stream = $body;
        return $this;
    }



    /**
     * @return string|null
     */
    #[Pure] public function getAccessControlAllowOrigin(): ?string
    {
        return $this->getHeaderLine('Access-Control-Allow-Origin');
    }


    /**
     * @return string|null
     */
    #[Pure] public function getAccessControlAllowHeaders(): ?string
    {
        return $this->getHeaderLine('Access-Control-Allow-Headers');
    }


    /**
     * @return string|null
     */
    #[Pure] public function getAccessControlRequestMethod(): ?string
    {
        return $this->getHeaderLine('Access-Control-Request-Method');
    }

}