From 7585e98fd72a07ad6cb2745e033c22a1b164bd8e Mon Sep 17 00:00:00 2001
From: Nikolaus Rath <Nikolaus@rath.org>
Date: Sun, 9 Sep 2018 14:55:55 +0100
Subject: [PATCH] Fix bug in AWS Signature calculation

The query string needs to be quoted slightly differently.
---
 src/s3ql/backends/s3.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/s3ql/backends/s3.py b/src/s3ql/backends/s3.py
index 239d8948f..9d2ec0ca3 100644
--- a/src/s3ql/backends/s3.py
+++ b/src/s3ql/backends/s3.py
@@ -181,11 +181,12 @@ def _authorize_request(self, method, path, headers, subres, query_string):
         auth_strs.append(urllib.parse.quote(path))
 
         if query_string:
-            s = urllib.parse.urlencode(query_string, doseq=True).split('&')
+            s = urllib.parse.urlencode(query_string, doseq=True,
+                                       quote_via=urllib.parse.quote).split('&')
         else:
             s = []
         if subres:
-            s.append(urllib.parse.quote_plus(subres) + '=')
+            s.append(urllib.parse.quote(subres) + '=')
         if s:
             s = '&'.join(sorted(s))
         else: