From 70fc5bf63238ff2a7d184d5717c9981a4333e694 Mon Sep 17 00:00:00 2001
From: m-yamagishi <m-yamagishi@infiniteloop.co.jp>
Date: Tue, 12 Jan 2021 22:58:58 +0900
Subject: [PATCH 1/2] Add multiple dots test(will be failed) #94

---
 tests/ReferenceContextTest.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/ReferenceContextTest.php b/tests/ReferenceContextTest.php
index 92d9d93e..b06eb5fc 100644
--- a/tests/ReferenceContextTest.php
+++ b/tests/ReferenceContextTest.php
@@ -183,6 +183,10 @@ public function normalizeUriProvider()
                 '/var/www/api/../definitions.yaml#/components/Pet',
                 'file:///var/www/definitions.yaml#/components/Pet',
             ],
+            [
+                '/var/www/api/foo/../../definitions.yaml#/components/Pet',
+                'file:///var/www/definitions.yaml#/components/Pet',
+            ],
         ];
 
         return $data;

From 9c08ebec49d3f57da59a91d3feecf769b6b531c2 Mon Sep 17 00:00:00 2001
From: m-yamagishi <m-yamagishi@infiniteloop.co.jp>
Date: Tue, 12 Jan 2021 23:07:53 +0900
Subject: [PATCH 2/2] fix ReferenceContext with multiple dots #94

---
 src/ReferenceContext.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/ReferenceContext.php b/src/ReferenceContext.php
index 3d824a63..bde0a964 100644
--- a/src/ReferenceContext.php
+++ b/src/ReferenceContext.php
@@ -115,14 +115,16 @@ private function reduceDots($path)
     {
         $parts = explode('/', ltrim($path, '/'));
         $c = count($parts);
+        $parentOffset = 1;
         for ($i = 0; $i < $c; $i++) {
             if ($parts[$i] === '.') {
                 unset($parts[$i]);
                 continue;
             }
-            if ($i > 0 && $parts[$i] === '..' && $parts[$i-1] !== '..') {
-                unset($parts[$i-1]);
+            if ($i > 0 && $parts[$i] === '..' && $parts[$i - $parentOffset] !== '..') {
+                unset($parts[$i - $parentOffset]);
                 unset($parts[$i]);
+                $parentOffset += 2;
             }
         }
         return '/'.implode('/', $parts);