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# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# Copyright 2003 Duke University
from __future__ import print_function, absolute_import
from __future__ import unicode_literals
import rpm
import os
from dnf.i18n import ucd
def checkSig(ts, package):
"""Takes a transaction set and a package, check it's sigs,
return 0 if they are all fine
return 1 if the gpg key can't be found
return 2 if the header is in someway damaged
return 3 if the key is not trusted
return 4 if the pkg is not gpg or pgp signed"""
value = 0
currentflags = ts.setVSFlags(0)
fdno = os.open(package, os.O_RDONLY)
try:
hdr = ts.hdrFromFdno(fdno)
except rpm.error as e:
if str(e) == "public key not availaiable":
value = 1
if str(e) == "public key not available":
value = 1
if str(e) == "public key not trusted":
value = 3
if str(e) == "error reading package header":
value = 2
else:
# checks signature from an hdr
string = '%|DSAHEADER?{%{DSAHEADER:pgpsig}}:{%|RSAHEADER?{%{RSAHEADER:pgpsig}}:' \
'{%|SIGGPG?{%{SIGGPG:pgpsig}}:{%|SIGPGP?{%{SIGPGP:pgpsig}}:{(none)}|}|}|}|'
try:
siginfo = hdr.sprintf(string)
siginfo = ucd(siginfo)
if siginfo == '(none)':
value = 4
except UnicodeDecodeError:
pass
del hdr
try:
os.close(fdno)
except OSError as e: # if we're not opened, don't scream about it
pass
ts.setVSFlags(currentflags) # put things back like they were before
return value