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[scl.org] [PATCH] Make rh-python36-python-pip use system ca cert trust (vs embedded)

Hi All,

I hope this is an appropriate channel for patch submissions. Here is a patch that mirrors the base "python3-pip" approach to use the system CA cert trust file, rather than the one that gets embedded into pip via the Requests/Certifi packages. This is preferable because it lets pip pickup locally administered CA trust (e.g. certs issued by an internal CA). This helps immensely when running a private secure pip/pypy repo!

This should be testable by comparing the output of these two commands:
scl enable rh-python36 'python -mpip._vendor.requests.certs'
python3 -mpip._vendor.requests.certs

The output if pip is using bundled certs is something like:
versus system certs:

A similar patch could probably be applied to prior SCL python (3.[345]). But I hope by getting it in 3.6, it will walk forward for 3.7+.

The attached patch is public domain.

attached: 0001-include-patch-from-python-pip-for-system-CA-cert-tru.patch


James Flemer

1909 26th Street, Suite 1E
Boulder, Colorado 80302
Office: 720-897-7334
Cell: 970-217-3204
james flemer ndpgroup com

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From 36f6069128150b2724d40d045cb6a95a5a36de1d Mon Sep 17 00:00:00 2001
From: "James E. Flemer" <james.flemer@ndpgroup.com>
Date: Thu, 16 Apr 2020 16:22:40 +0000
Subject: [PATCH] include patch from python-pip for system CA cert trust

 SOURCES/dummy-certifi.patch | 13 +++++++++++++
 SPECS/python-pip.spec       | 14 +++++++++++++-
 2 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 SOURCES/dummy-certifi.patch

diff --git a/SOURCES/dummy-certifi.patch b/SOURCES/dummy-certifi.patch
new file mode 100644
index 0000000..4afc3d8
--- /dev/null
+++ b/SOURCES/dummy-certifi.patch
@@ -0,0 +1,13 @@
+--- pip-9.0.1/pip/_vendor/requests/certs.py	2016-11-06 18:49:45.000000000 +0000
++++ dummy-certifi/pip/_vendor/requests/certs.py	2020-04-16 12:48:44.206090267 +0000
+@@ -18,8 +18,8 @@
+ except ImportError:
+     def where():
+         """Return the preferred certificate bundle."""
+-        # vendored bundle inside Requests
+-        return os.path.join(os.path.dirname(__file__), 'cacert.pem')
++        # system CA certs
++        return '/etc/pki/tls/certs/ca-bundle.crt'
+ if __name__ == '__main__':
+     print(where())
diff --git a/SPECS/python-pip.spec b/SPECS/python-pip.spec
index d6dbcb7..94b2fd8 100644
--- a/SPECS/python-pip.spec
+++ b/SPECS/python-pip.spec
@@ -15,7 +15,7 @@
 Name:           %{?scl_prefix}python-%{srcname}
 Version:        9.0.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        A tool for installing and managing Python packages
 Group:          Development/Libraries
@@ -24,6 +24,10 @@ URL:            http://www.pip-installer.org
 Source0:        https://files.pythonhosted.org/packages/source/p/pip/%{srcname}-%{version}.tar.gz
 Patch0:         allow-stripping-given-prefix-from-wheel-RECORD-files.patch
+# Use the system level root certificate instead of the one bundled in certifi
+# https://bugzilla.redhat.com/show_bug.cgi?id=1655253
+Patch1:         dummy-certifi.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildArch:      noarch
@@ -47,6 +51,11 @@ easy_installable should be pip-installable as well.
 %setup -q -n %{srcname}-%{version}
 %patch0 -p1
+%patch1 -p1
+# this goes together with patch1
+rm pip/_vendor/*/*.pem
+sed -i '/\.pem$/d' pip.egg-info/SOURCES.txt
 %{__sed} -i '1d' pip/__init__.py
@@ -88,6 +97,9 @@ pip3 install -I dist/%{python3_wheelname} --root %{buildroot} --strip-file-prefi
+* Thu Apr 16 2020 James E. Flemer <james.flemer@ndpgroup.com> - 9.0.1-3
+- include patch from python-pip for system CA cert trust
 * Wed Jun 14 2017 Charalampos Stratakis <cstratak@redhat.com> - 9.0.1-2
 - Rebuild as wheel

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