Workaround for BC break with json-schema v2.0.3

Workaround to jsonrainbow/json-schema#262

Author: Maks3w

src/JsonSchema/Uri/Retrievers/FileGetContentsRetriever.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace FR3D\SwaggerAssertions\JsonSchema\Uri\Retrievers;
+
+use JsonSchema\Exception\ResourceNotFoundException;
+use JsonSchema\Uri\Retrievers\FileGetContents;
+
+/**
+ * Workaround to BC Break https://github.com/justinrainbow/json-schema/pull/262
+ */
+class FileGetContentsRetriever extends FileGetContents
+{
+    public function retrieve($uri)
+    {
+        set_error_handler(function () use ($uri) {
+            throw new ResourceNotFoundException('JSON schema not found at ' . $uri);
+        });
+        $response = file_get_contents($uri);
+        restore_error_handler();
+
+        if (false === $response) {
+            throw new ResourceNotFoundException('JSON schema was not retrieved at ' . $uri);
+        }
+
+        if ($response == '' && substr($uri, 0, 7) == 'file://' && substr($uri, -1) == '/') {
+            throw new ResourceNotFoundException('JSON schema not found at ' . $uri);
+        }
+
+        $this->messageBody = $response;
+        if (!empty($http_response_header)) {
+            $this->fetchContentType($http_response_header);
+        } else {
+            // Could be a "file://" url or something else - fake up the response
+            $this->contentType = null;
+        }
+
+        return $this->messageBody;
+    }
+
+    /**
+     * @param array $headers HTTP Response Headers
+     *
+     * @return boolean Whether the Content-Type header was found or not
+     */
+    private function fetchContentType(array $headers)
+    {
+        foreach ($headers as $header) {
+            if ($this->contentType = self::getContentTypeMatchInHeader($header)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}

src/SchemaManager.php

@@ -2,6 +2,7 @@
 
 namespace FR3D\SwaggerAssertions;
 
+use FR3D\SwaggerAssertions\JsonSchema\Uri\Retrievers\FileGetContentsRetriever;
 use InvalidArgumentException;
 use JsonSchema\RefResolver;
 use JsonSchema\Uri\UriResolver;
@@ -30,7 +31,7 @@ class SchemaManager
      */
     public static function fromUri($definitionUri)
     {
-        $refResolver = new RefResolver(new UriRetriever(), new UriResolver());
+        $refResolver = new RefResolver((new UriRetriever())->setUriRetriever(new FileGetContentsRetriever()), new UriResolver());
 
         return new self($refResolver->resolve($definitionUri));
     }