From 404c722920043caf548bf10c0242aac5d22a96b3 Mon Sep 17 00:00:00 2001
From: Simon Sapin <simon.sapin@exyr.org>
Date: Thu, 19 Oct 2017 19:56:18 +0200
Subject: Only pass cafile argument to urlopen in Python versions that support
 it.

---
 python/servo/util.py | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'python/servo/util.py')

diff --git a/python/servo/util.py b/python/servo/util.py
index 485637b81f1..78158b840da 100644
--- a/python/servo/util.py
+++ b/python/servo/util.py
@@ -22,6 +22,20 @@ import urllib2
 import certifi
 
 
+try:
+    from ssl import HAS_SNI
+except ImportError:
+    HAS_SNI = False
+
+# The cafile parameter was added in 2.7.9
+if HAS_SNI and sys.version_info >= (2, 7, 9):
+    STATIC_RUST_LANG_ORG_DIST = "https://static.rust-lang.org/dist"
+    URLOPEN_KWARGS = {"cafile": certifi.where()}
+else:
+    STATIC_RUST_LANG_ORG_DIST = "https://static-rust-lang-org.s3.amazonaws.com/dist"
+    URLOPEN_KWARGS = {}
+
+
 def delete(path):
     if os.path.isdir(path) and not os.path.islink(path):
         shutil.rmtree(path)
@@ -74,7 +88,7 @@ def download(desc, src, writer, start_byte=0):
         req = urllib2.Request(src)
         if start_byte:
             req = urllib2.Request(src, headers={'Range': 'bytes={}-'.format(start_byte)})
-        resp = urllib2.urlopen(req, cafile=certifi.where())
+        resp = urllib2.urlopen(req, **URLOPEN_KWARGS)
 
         fsize = None
         if resp.info().getheader('Content-Length'):
-- 
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