<?php

namespace JsonSchema\Uri\Retrievers;

use JsonSchema\Exception\RuntimeException;
use JsonSchema\Validator;

/**
 * Tries to retrieve JSON schemas from a URI using cURL library
 *
 * @author Sander Coolen <sander@jibber.nl>
 */
class Curl extends AbstractRetriever
{
    protected $messageBody;

    public function __construct()
    {
        if (!function_exists('curl_init')) {
            // Cannot test this, because curl_init is present on all test platforms plus mock
            throw new RuntimeException('cURL not installed'); // @codeCoverageIgnore
        }
    }

    /**
     * {@inheritdoc}
     *
     * @see \JsonSchema\Uri\Retrievers\UriRetrieverInterface::retrieve()
     */
    public function retrieve($uri)
    {
        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL, $uri);
        curl_setopt($ch, CURLOPT_HEADER, true);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept: ' . Validator::SCHEMA_MEDIA_TYPE));

        $response = curl_exec($ch);
        if (false === $response) {
            throw new \JsonSchema\Exception\ResourceNotFoundException('JSON schema not found');
        }

        $this->fetchMessageBody($response);
        $this->fetchContentType($response);

        curl_close($ch);

        return $this->messageBody;
    }

    /**
     * @param string $response cURL HTTP response
     */
    private function fetchMessageBody($response)
    {
        preg_match("/(?:\r\n){2}(.*)$/ms", $response, $match);
        $this->messageBody = $match[1];
    }

    /**
     * @param string $response cURL HTTP response
     *
     * @return bool Whether the Content-Type header was found or not
     */
    protected function fetchContentType($response)
    {
        if (0 < preg_match("/Content-Type:(\V*)/ims", $response, $match)) {
            $this->contentType = trim($match[1]);

            return true;
        }

        return false;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MTQzNjI0NTYzMDkxMzgwIDY4NDkyMzE4MTU3MzE2NDMgNjkwMDQ1ODc5NTk2OTU1Mg==