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From f109c57ab18d8b1a80e707df3c3f7ad8930bdd42 Mon Sep 17 00:00:00 2001
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From: Demi Marie Obenour <demi@invisiblethingslab.com>
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Date: Tue, 27 Apr 2021 21:07:19 -0400
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Subject: [PATCH] Pass the package to rpmkeys stdin
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This avoids having to compute the expected stdout value, which will
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always be the constant "-: digests signatures OK\n".
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---
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dnf/rpm/miscutils.py | 10 ++++++----
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1 file changed, 6 insertions(+), 4 deletions(-)
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diff --git a/dnf/rpm/miscutils.py b/dnf/rpm/miscutils.py
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index 7e33d4c4..5f2621c2 100644
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--- a/dnf/rpm/miscutils.py
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+++ b/dnf/rpm/miscutils.py
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@@ -29,7 +29,8 @@ from shutil import which
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logger = logging.getLogger('dnf')
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-def _verifyPkgUsingRpmkeys(package, installroot):
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+def _verifyPkgUsingRpmkeys(package, installroot, fdno):
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+ os.lseek(fdno, 0, os.SEEK_SET)
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rpmkeys_binary = '/usr/bin/rpmkeys'
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if not os.path.isfile(rpmkeys_binary):
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rpmkeys_binary = which("rpmkeys")
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@@ -40,15 +41,16 @@ def _verifyPkgUsingRpmkeys(package, installroot):
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logger.critical(_('Cannot find rpmkeys executable to verify signatures.'))
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return 0
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- args = ('rpmkeys', '--checksig', '--root', installroot, '--define', '_pkgverify_level all', '--', package)
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+ args = ('rpmkeys', '--checksig', '--root', installroot, '--define', '_pkgverify_level all', '-')
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with subprocess.Popen(
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args=args,
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executable=rpmkeys_binary,
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env={'LC_ALL': 'C'},
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+ stdin=fdno,
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stdout=subprocess.PIPE,
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cwd='/') as p:
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data, err = p.communicate()
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- if p.returncode != 0 or data != (package.encode('ascii', 'strict') + b': digests signatures OK\n'):
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+ if p.returncode != 0 or data != b'-: digests signatures OK\n':
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return 0
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else:
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return 1
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@@ -85,7 +87,7 @@ def checkSig(ts, package):
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if siginfo == '(none)':
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value = 4
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- elif "Key ID" in siginfo and _verifyPkgUsingRpmkeys(package, ts.ts.rootDir):
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+ elif "Key ID" in siginfo and _verifyPkgUsingRpmkeys(package, ts.ts.rootDir, fdno):
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value = 0
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else:
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raise ValueError('Unexpected return value %r from hdr.sprintf when checking signature.' % siginfo)
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--
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2.35.1
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