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[autoinstallsdev/mediawiki.git] / vendor / justinrainbow / json-schema / src / JsonSchema / Uri / Retrievers / Curl.php

diff --git a/vendor/justinrainbow/json-schema/src/JsonSchema/Uri/Retrievers/Curl.php b/vendor/justinrainbow/json-schema/src/JsonSchema/Uri/Retrievers/Curl.php
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+++ b/vendor/justinrainbow/json-schema/src/JsonSchema/Uri/Retrievers/Curl.php
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+<?php
+
+/*
+ * This file is part of the JsonSchema package.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+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;
+    }
+}