48 lines
1.6 KiB
Diff
48 lines
1.6 KiB
Diff
From 4f7cc3a38802c2ec54b1168815792b49656f7fa0 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
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Date: Fri, 7 May 2021 10:49:27 +0200
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Subject: [PATCH] Fix rejecting URLs with unsafe characters in
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---
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botocore/utils.py | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/botocore/utils.py b/botocore/utils.py
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index cf61e7a..57f6194 100644
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--- a/botocore/utils.py
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+++ b/botocore/utils.py
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@@ -173,6 +173,10 @@ ZONE_ID_PAT = "(?:%25|%)(?:[" + UNRESERVED_PAT + "]|%[a-fA-F0-9]{2})+"
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IPV6_ADDRZ_PAT = r"\[" + IPV6_PAT + r"(?:" + ZONE_ID_PAT + r")?\]"
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IPV6_ADDRZ_RE = re.compile("^" + IPV6_ADDRZ_PAT + "$")
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+# These are the characters that are stripped by post-bpo-43882 urlparse().
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+UNSAFE_URL_CHARS = frozenset('\t\r\n')
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+
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+
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def ensure_boolean(val):
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"""Ensures a boolean value if a string or boolean is provided
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@@ -977,6 +981,8 @@ class ArgumentGenerator(object):
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def is_valid_ipv6_endpoint_url(endpoint_url):
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+ if UNSAFE_URL_CHARS.intersection(endpoint_url):
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+ return False
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netloc = urlparse(endpoint_url).netloc
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return IPV6_ADDRZ_RE.match(netloc) is not None
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@@ -990,6 +996,10 @@ def is_valid_endpoint_url(endpoint_url):
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:return: True if the endpoint url is valid. False otherwise.
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"""
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+ # post-bpo-43882 urlsplit() strips unsafe characters from URL, causing
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+ # it to pass hostname validation below. Detect them early to fix that.
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+ if UNSAFE_URL_CHARS.intersection(endpoint_url):
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+ return False
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parts = urlsplit(endpoint_url)
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hostname = parts.hostname
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if hostname is None:
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--
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2.27.0
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