From 949f87447031d8d83b8108aaa11046eb8a50650b Mon Sep 17 00:00:00 2001
From: Lars Kellogg-Stedman <lars@redhat.com>
Date: Thu, 8 Dec 2016 15:24:24 -0500
Subject: [PATCH] url_helper: fail gracefully if oauthlib is not available

We are unable to ship python-oauthlib in RHEL.  Allow imports of
url_helper to succeed even when oauthlib is unavailable.

X-downstream-only: true
---
 cloudinit/url_helper.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/cloudinit/url_helper.py b/cloudinit/url_helper.py
index 312b046..19c8148 100644
--- a/cloudinit/url_helper.py
+++ b/cloudinit/url_helper.py
@@ -17,7 +17,11 @@ import time
 from email.utils import parsedate
 from functools import partial
 
-import oauthlib.oauth1 as oauth1
+try:
+    import oauthlib.oauth1 as oauth1
+except ImportError:
+    oauth1 = None
+
 from requests import exceptions
 
 from six.moves.urllib.parse import (
@@ -481,6 +485,10 @@ class OauthUrlHelper(object):
 
 def oauth_headers(url, consumer_key, token_key, token_secret, consumer_secret,
                   timestamp=None):
+
+    if oauth1 is None:
+        raise NotImplementedError('oauth support is not available')
+
     if timestamp:
         timestamp = str(timestamp)
     else: