71 lines
2.1 KiB
PHP
71 lines
2.1 KiB
PHP
<?php declare(strict_types=1);
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namespace Lean\Response;
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use function get_class, gettype, is_object, is_string, sprintf;
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use Psr\Http\Message\StreamInterface;
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use Zend\Diactoros\Exception,
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Zend\Diactoros\Response,
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Zend\Diactoros\Stream,
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Zend\Diactoros\Response\InjectContentTypeTrait;
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/**
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* PDF Response
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*
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* Allows creating a response by passing a string to the constructor;
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* by default, sets a status code of 200 and sets the Content-Type header to
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* application/pdf.
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*/
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class PdfResponse extends Response
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{
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use InjectContentTypeTrait;
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/**
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* Create a PDF response
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*
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* Produces a pdf response with a Content-Type of application/json and a default
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* status of 200.
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*
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* @param string|StreamInterface $content String or stream for the message body.
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* @param int $status Integer status code for the response; 200 by default.
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* @param array $headers Array of headers to use at initialization.
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* @throws Exception\InvalidArgumentException if $content is neither a string or stream.
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*/
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public function __construct($content, int $status = 200, array $headers = [])
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{
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parent::__construct(
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$this->createBody($content),
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$status,
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$this->injectContentType('application/pdf; charset=utf-8', $headers)
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);
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}
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/**
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* Create the message body.
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*
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* @param string|StreamInterface $content
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* @throws Exception\InvalidArgumentException if $content is neither a string or stream.
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*/
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private function createBody($content) : StreamInterface
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{
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if ($content instanceof StreamInterface) {
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return $content;
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}
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if (! is_string($content)) {
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throw new Exception\InvalidArgumentException(sprintf(
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'Invalid content (%s) provided to %s',
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(is_object($content) ? get_class($content) : gettype($content)),
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__CLASS__
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));
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}
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$body = new Stream('php://temp', 'wb+');
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$body->write($content);
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$body->rewind();
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return $body;
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}
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}
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