Update to 17.2.0 and backport memory leak fix

Signed-off-by: Jeremy Cline <jeremy@jcline.org>

Provide-a-destructor-for-the-CRL-object.patch

@@ -0,0 +1,49 @@
+From 7b5cecf595cd1f4d0fb5b73e97f5fe2e00c4e255 Mon Sep 17 00:00:00 2001
+From: Jeremy Cline <jeremy@jcline.org>
+Date: Thu, 7 Sep 2017 20:11:08 -0400
+Subject: [PATCH] Provide a destructor for the CRL object (#690)
+
+This frees the memory allocated for the CRL object. Prior to this
+commit, the following script would leak memory:
+
+```
+from OpenSSL.crypto import load_crl, FILETYPE_PEM
+
+crl = """
+-----BEGIN X509 CRL-----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-----END X509 CRL-----
+"""
+
+for _ in range(0, 1000000):
+    load_crl(FILETYPE_PEM, crl)
+```
+
+Signed-off-by: Jeremy Cline <jeremy@jcline.org>
+---
+ src/OpenSSL/crypto.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/OpenSSL/crypto.py b/src/OpenSSL/crypto.py
+index 52fcdaf..85c60b7 100644
+--- a/src/OpenSSL/crypto.py
++++ b/src/OpenSSL/crypto.py
+@@ -2758,7 +2758,7 @@ def load_crl(type, buffer):
+         _raise_current_error()
+ 
+     result = CRL.__new__(CRL)
+-    result._crl = crl
++    result._crl = _ffi.gc(crl, _lib.X509_CRL_free)
+     return result
+ 
+ 
+-- 
+2.13.5
+

pyOpenSSL.spec

@@ -4,10 +4,13 @@
 
 Summary: Python wrapper module around the OpenSSL library
 Name: pyOpenSSL
-Version: 17.1.0
+Version: 17.2.0
-Release: 2%{?dist}
+Release: 1%{?dist}
 Source0: https://files.pythonhosted.org/packages/source/p/pyOpenSSL/pyOpenSSL-%{version}.tar.gz
 Source1: https://files.pythonhosted.org/packages/source/p/pyOpenSSL/pyOpenSSL-%{version}.tar.gz.asc
+# A backport of https://github.com/pyca/pyopenssl/pull/690 which will be included
+# in the next pyOpenSSL release (17.3.0 or later).
+Patch0: Provide-a-destructor-for-the-CRL-object.patch
 
 BuildArch: noarch
 License: ASL 2.0
@@ -68,7 +71,7 @@ BuildArch: noarch
 Documentation for pyOpenSSL
 
 %prep
-%setup -q -n pyOpenSSL-%{version}
+%autosetup -p1 -n pyOpenSSL-%{version}
 
 %build
 %py2_build
@@ -106,6 +109,10 @@ rm doc/_build/html/.buildinfo
 %doc CHANGELOG.rst examples doc/_build/html
 
 %changelog
+* Fri Sep 08 2017 Jeremy Cline <jeremy@jcline.org> - 17.2.0-1
+- New upstream release 17.2.0
+- Backport a memory leak fix with CRLs (upstream PR #690).
+
 * Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 17.1.0-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild