mirror of
https://github.com/openSUSE/osc.git
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123 lines
3.0 KiB
Python
123 lines
3.0 KiB
Python
from __future__ import print_function
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from tempfile import mkdtemp
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import os
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from shutil import rmtree
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import rpm
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import base64
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class KeyError(Exception):
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def __init__(self, key, *args):
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Exception.__init__(self)
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self.args = args
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self.key = key
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def __str__(self):
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return ''+self.key+' :'+' '.join(self.args)
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class Checker:
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def __init__(self):
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self.dbdir = mkdtemp(prefix='oscrpmdb')
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self.imported = {}
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rpm.addMacro('_dbpath', self.dbdir)
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self.ts = rpm.TransactionSet()
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self.ts.initDB()
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self.ts.openDB()
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self.ts.setVSFlags(0)
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#self.ts.Debug(1)
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def readkeys(self, keys=[]):
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rpm.addMacro('_dbpath', self.dbdir)
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for key in keys:
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try:
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self.readkey(key)
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except KeyError as e:
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print(e)
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if not len(self.imported):
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raise KeyError('', "no key imported")
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rpm.delMacro("_dbpath")
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# python is an idiot
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# def __del__(self):
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# self.cleanup()
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def cleanup(self):
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self.ts.closeDB()
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rmtree(self.dbdir)
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def readkey(self, file):
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if file in self.imported:
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return
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fd = open(file, "r")
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line = fd.readline()
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if line and line[0:14] == "-----BEGIN PGP":
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line = fd.readline()
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while line and line != "\n":
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line = fd.readline()
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if not line:
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raise KeyError(file, "not a pgp public key")
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else:
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raise KeyError(file, "not a pgp public key")
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key = ''
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line = fd.readline()
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crc = None
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while line:
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if line[0:12] == "-----END PGP":
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break
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line = line.rstrip()
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if (line[0] == '='):
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crc = line[1:]
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line = fd.readline()
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break
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else:
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key += line
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line = fd.readline()
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fd.close()
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if not line or line[0:12] != "-----END PGP":
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raise KeyError(file, "not a pgp public key")
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# TODO: compute and compare CRC, see RFC 2440
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bkey = base64.b64decode(key)
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r = self.ts.pgpImportPubkey(bkey)
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if r != 0:
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raise KeyError(file, "failed to import pubkey")
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self.imported[file] = 1
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def check(self, pkg):
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# avoid errors on non rpm
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if pkg[-4:] != '.rpm':
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return
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fd = None
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try:
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fd = os.open(pkg, os.O_RDONLY)
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hdr = self.ts.hdrFromFdno(fd)
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finally:
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if fd is not None:
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os.close(fd)
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if __name__ == "__main__":
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import sys
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keyfiles = []
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pkgs = []
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for arg in sys.argv[1:]:
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if arg[-4:] == '.rpm':
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pkgs.append(arg)
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else:
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keyfiles.append(arg)
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checker = Checker()
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try:
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checker.readkeys(keyfiles)
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for pkg in pkgs:
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checker.check(pkg)
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except Exception as e:
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checker.cleanup()
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raise e
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# vim: sw=4 et
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