| 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | import sys, os |
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| 4 | import subprocess, tempfile |
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| 5 | import os.path |
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| 6 | import re |
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| 7 | |
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| 8 | from M2Crypto import X509 |
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| 9 | |
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| 10 | from string import join |
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| 11 | from federation.util import abac_pem_type, abac_split_cert, file_expanding_opts |
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| 12 | |
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| 13 | class Parser(file_expanding_opts): |
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| 14 | def __init__(self): |
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| 15 | file_expanding_opts.__init__(self, usage='%prog [options]') |
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| 16 | self.add_option('--out', dest='out', help='destination file', |
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| 17 | action='callback', callback=self.expand_file, type='str', |
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| 18 | default='./cert.pem') |
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| 19 | self.add_option('--debug', dest='debug', action='store_true', |
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| 20 | default=False, help='Just print command') |
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| 21 | self.add_option('--cert', dest='cert', |
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| 22 | help='Cretificate to copy subject from') |
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| 23 | self.add_option('--nokey', dest='include_key', |
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| 24 | action='store_false', default=True, |
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| 25 | help='Do not include the key in the generated ID') |
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| 26 | self.add_option('--cn', dest='cn', default=None, |
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| 27 | help='Set the CN directly') |
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| 28 | self.add_option('--openssl', dest='openssl', |
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| 29 | help='Path to openssl command', default='/usr/bin/openssl') |
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| 30 | |
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| 31 | parser = Parser() |
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| 32 | opts, args = parser.parse_args() |
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| 33 | delete_key = False |
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| 34 | |
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| 35 | if args: |
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| 36 | key = args[0] |
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| 37 | else: |
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| 38 | sys.exit('Expecting a key as a non-optioned argument') |
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| 39 | |
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| 40 | ktype = abac_pem_type(key) |
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| 41 | if ktype == 'both': |
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| 42 | key, cert = abac_split_cert(key) |
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| 43 | os.unlink(cert) |
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| 44 | delete_key = True |
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| 45 | elif ktype != 'key': |
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| 46 | sys.exit('Cannot use %s as identity. It is a %s ' % (key, ktype) + |
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| 47 | 'and we were expecting a key') |
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| 48 | |
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| 49 | |
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| 50 | try: |
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| 51 | if opts.cn is not None: |
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| 52 | subj = '/CN=' + opts.cn |
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| 53 | if len(subj) > 64: subj = subj[0:63] |
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| 54 | else: |
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| 55 | c = X509.load_cert(opts.cert) |
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| 56 | subj = c.get_subject().as_text() |
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| 57 | if subj.startswith('/'): i = 1 |
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| 58 | else: i = 0 |
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| 59 | subj = '/' + re.sub('/', '\/', subj[i:]) |
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| 60 | |
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| 61 | tf, tn = tempfile.mkstemp(suffix=".pem") |
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| 62 | cmd = [opts.openssl, 'req', '-new', '-nodes', '-subj', |
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| 63 | subj, '-x509', '-days', '3650', |
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| 64 | '-key', key, '-out', tn] |
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| 65 | if opts.debug: |
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| 66 | print join(cmd) |
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| 67 | sys.exit(0) |
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| 68 | else: |
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| 69 | rv = subprocess.call(cmd) |
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| 70 | if rv == 0: |
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| 71 | try: |
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| 72 | of = os.fdopen(os.open(opts.out, |
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| 73 | os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0600), 'w') |
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| 74 | if opts.include_key: sources = (tn, key) |
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| 75 | else:sources = (tn,) |
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| 76 | |
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| 77 | for inf in sources: |
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| 78 | f = open(inf, 'r') |
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| 79 | for line in f: |
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| 80 | print >>of, line, |
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| 81 | f.close() |
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| 82 | of.close() |
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| 83 | except EnvironmentError, e: |
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| 84 | sys.exit("Cannot open %s: %s" % (efilename, e.strerror)) |
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| 85 | else: |
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| 86 | sys.exit("%s failed: %d" % (opts.openssl, rv)) |
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| 87 | finally: |
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| 88 | if delete_key and key: os.unlink(key) |
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