684N/A

684N/A

684N/Aimport getopt

684N/Aimport gettext

684N/Aimport hashlib

684N/Aimport locale

684N/Aimport os

684N/Aimport shutil

684N/Aimport sys

684N/Aimport tempfile

684N/Aimport traceback

684N/A

684N/Afrom cryptography import x509

684N/Afrom cryptography.hazmat.backends import default_backend

684N/Afrom cryptography.hazmat.primitives import serialization

684N/Afrom imp import reload

684N/A

684N/Aimport pkg

684N/Aimport pkg.actions as actions

684N/Aimport pkg.client.api_errors as api_errors

684N/Aimport pkg.client.transport.transport as transport

684N/Aimport pkg.digest as digest

684N/Aimport pkg.fmri as fmri

684N/Aimport pkg.manifest as manifest

684N/Aimport pkg.misc as misc

684N/Aimport pkg.publish.transaction as trans

684N/Afrom pkg.client import global_settings

684N/Afrom pkg.client.debugvalues import DebugValues

684N/Afrom pkg.misc import emsg, msg, PipeError

684N/A

684N/APKG_CLIENT_NAME = "pkgsign"

684N/A

684N/AEXIT_OK = 0

684N/AEXIT_OOPS = 1

684N/AEXIT_BADOPT = 2

684N/AEXIT_PARTIAL = 3

684N/A

684N/Arepo_cache = {}

684N/A

684N/Adef error(text, cmd=None):

684N/A """Emit an error message prefixed by the command name """

684N/A

684N/A if cmd:

684N/A text = "{0}: {1}".format(cmd, text)

684N/A

684N/A else:

684N/A text = "{0}: {1}".format(PKG_CLIENT_NAME, text)

684N/A

684N/A

684N/A # If the message starts with whitespace, assume that it should come

684N/A # *before* the command-name prefix.

684N/A text_nows = text.lstrip()

684N/A ws = text[:len(text) - len(text_nows)]

684N/A

684N/A # This has to be a constant value as we can't reliably get our actual

684N/A # program name on all platforms.

684N/A emsg(ws + text_nows)

684N/A

684N/Adef usage(usage_error=None, cmd=None, retcode=EXIT_BADOPT):

684N/A """Emit a usage message and optionally prefix it with a more specific

684N/A

684N/A if usage_error:

684N/A error(usage_error, cmd=cmd)

684N/A emsg (_("""\

684N/A"""))

684N/A

684N/A sys.exit(retcode)

684N/A

684N/Adef fetch_catalog(src_pub, xport, temp_root):

684N/A """Fetch the catalog from src_uri."""

684N/A

684N/A if not src_pub.meta_root:

684N/A # Create a temporary directory for catalog.

684N/A cat_dir = tempfile.mkdtemp(dir=temp_root)

684N/A src_pub.meta_root = cat_dir

684N/A

684N/A src_pub.transport = xport

684N/A src_pub.refresh(True, True)

684N/A

684N/A return src_pub.catalog

684N/A

684N/Adef __make_tmp_cert(d, pth):

684N/A try:

684N/A with open(pth, "rb") as f:

684N/A cert = x509.load_pem_x509_certificate(f.read(),

684N/A default_backend())

684N/A except (ValueError, IOError) as e:

684N/A raise api_errors.BadFileFormat(_("The file {0} was expected to "

684N/A "be a PEM certificate but it could not be read.").format(

684N/A pth))

684N/A fd, fp = tempfile.mkstemp(dir=d)

684N/A with os.fdopen(fd, "wb") as fh:

684N/A fh.write(cert.public_bytes(serialization.Encoding.PEM))

684N/A return fp

684N/A

684N/Adef main_func():

684N/A misc.setlocale(locale.LC_ALL, "", error)

684N/A gettext.install("pkg", "/usr/share/locale",

684N/A codeset=locale.getpreferredencoding())

684N/A global_settings.client_name = "pkgsign"

684N/A

684N/A try:

684N/A opts, pargs = getopt.getopt(sys.argv[1:], "a:c:i:k:ns:D:",

684N/A ["help", "no-index", "no-catalog"])

684N/A except getopt.GetoptError as e:

684N/A usage(_("illegal global option -- {0}").format(e.opt))

684N/A

684N/A show_usage = False

684N/A sig_alg = "rsa-sha256"

684N/A cert_path = None

684N/A key_path = None

679N/A chain_certs = []

679N/A add_to_catalog = True

684N/A set_alg = False

684N/A dry_run = False

684N/A

684N/A repo_uri = os.getenv("PKG_REPO", None)

684N/A for opt, arg in opts:

684N/A if opt == "-a":

684N/A sig_alg = arg

684N/A set_alg = True

684N/A elif opt == "-c":

684N/A cert_path = os.path.abspath(arg)

684N/A if not os.path.isfile(cert_path):

684N/A usage(_("{0} was expected to be a certificate "

684N/A "but isn't a file.").format(cert_path))

684N/A elif opt == "-i":

684N/A p = os.path.abspath(arg)

684N/A if not os.path.isfile(p):

684N/A usage(_("{0} was expected to be a certificate "

684N/A "but isn't a file.").format(p))

684N/A chain_certs.append(p)

684N/A elif opt == "-k":

684N/A key_path = os.path.abspath(arg)

684N/A if not os.path.isfile(key_path):

684N/A usage(_("{0} was expected to be a key file "

684N/A "but isn't a file.").format(key_path))

684N/A elif opt == "-n":

684N/A dry_run = True

684N/A elif opt == "-s":

684N/A repo_uri = misc.parse_uri(arg)

684N/A elif opt == "--help":

684N/A show_usage = True

684N/A elif opt == "--no-catalog":

684N/A add_to_catalog = False

684N/A elif opt == "-D":

684N/A try:

684N/A key, value = arg.split("=", 1)

684N/A DebugValues.set_value(key, value)

684N/A except (AttributeError, ValueError):

684N/A error(_("{opt} takes argument of form "

684N/A "name=value, not {arg}").format(

684N/A opt=opt, arg=arg))

684N/A if show_usage:

684N/A usage(retcode=EXIT_OK)

684N/A

684N/A if not repo_uri:

684N/A usage(_("a repository must be provided"))

684N/A

684N/A if key_path and not cert_path:

684N/A usage(_("If a key is given to sign with, its associated "

684N/A "certificate must be given."))

684N/A

684N/A if cert_path and not key_path:

684N/A usage(_("If a certificate is given, its associated key must be "

684N/A "given."))

679N/A

684N/A if chain_certs and not cert_path:

684N/A usage(_("Intermediate certificates are only valid if a key "

684N/A "and certificate are also provided."))

684N/A

684N/A if not pargs:

684N/A usage(_("At least one fmri or pattern must be provided to "

684N/A "sign."))

684N/A

684N/A if not set_alg and not key_path:

684N/A sig_alg = "sha256"

684N/A

684N/A s, h = actions.signature.SignatureAction.decompose_sig_alg(sig_alg)

684N/A if h is None:

684N/A usage(_("{0} is not a recognized signature algorithm.").format(

684N/A sig_alg))

684N/A if s and not key_path:

684N/A usage(_("Using {0} as the signature algorithm requires that a "

684N/A "key and certificate pair be presented using the -k and -c "

684N/A "options.").format(sig_alg))

684N/A if not s and key_path:

684N/A usage(_("The {0} hash algorithm does not use a key or "

684N/A "certificate. Do not use the -k or -c options with this "

684N/A "algorithm.").format(sig_alg))

684N/A

684N/A if DebugValues:

684N/A reload(digest)

684N/A

684N/A errors = []

684N/A

684N/A t = misc.config_temp_root()

684N/A temp_root = tempfile.mkdtemp(dir=t)

684N/A del t

684N/A

684N/A cache_dir = tempfile.mkdtemp(dir=temp_root)

684N/A incoming_dir = tempfile.mkdtemp(dir=temp_root)

684N/A chash_dir = tempfile.mkdtemp(dir=temp_root)

684N/A cert_dir = tempfile.mkdtemp(dir=temp_root)

684N/A

684N/A try:

684N/A chain_certs = [

684N/A __make_tmp_cert(cert_dir, c) for c in chain_certs

684N/A ]

684N/A if cert_path is not None:

684N/A cert_path = __make_tmp_cert(cert_dir, cert_path)

684N/A

684N/A xport, xport_cfg = transport.setup_transport()

684N/A xport_cfg.add_cache(cache_dir, readonly=False)

684N/A xport_cfg.incoming_root = incoming_dir

684N/A

684N/A # Configure publisher(s)

684N/A transport.setup_publisher(repo_uri, "source", xport,

684N/A xport_cfg, remote_prefix=True)

684N/A pats = pargs

684N/A successful_publish = False

684N/A

684N/A concrete_fmris = []

684N/A unmatched_pats = set(pats)

684N/A all_pats = frozenset(pats)

684N/A get_all_pubs = False

684N/A pub_prefs = set()

684N/A # Gather the publishers whose catalogs will be needed.

684N/A for pat in pats:

684N/A try:

684N/A p_obj = fmri.MatchingPkgFmri(pat)

684N/A except fmri.IllegalMatchingFmri as e:

684N/A errors.append(e)

684N/A continue

684N/A pub_prefix = p_obj.get_publisher()

684N/A if pub_prefix:

684N/A pub_prefs.add(pub_prefix)

684N/A else:

684N/A get_all_pubs = True

684N/A # Check each publisher for matches to our patterns.

684N/A for p in xport_cfg.gen_publishers():

684N/A if not get_all_pubs and p.prefix not in pub_prefs:

684N/A continue

684N/A cat = fetch_catalog(p, xport, temp_root)

684N/A ms, tmp1, u = cat.get_matching_fmris(pats)

684N/A # Find which patterns matched.

684N/A matched_pats = all_pats - u

684N/A # Remove those patterns from the unmatched set.

684N/A unmatched_pats -= matched_pats

679N/A for v_list in ms.values():

660N/A concrete_fmris.extend([(v, p) for v in v_list])

684N/A if unmatched_pats:

684N/A raise api_errors.PackageMatchErrors(

679N/A unmatched_fmris=unmatched_pats)

684N/A

684N/A for pfmri, src_pub in sorted(set(concrete_fmris)):

684N/A try:

684N/A # Get the existing manifest for the package to

684N/A # be signed.

684N/A m_str = xport.get_manifest(pfmri,

684N/A content_only=True, pub=src_pub)

684N/A m = manifest.Manifest()

684N/A m.set_content(content=m_str)

679N/A

684N/A # Construct the base signature action.

684N/A attrs = { "algorithm": sig_alg }

684N/A a = actions.signature.SignatureAction(cert_path,

684N/A **attrs)

684N/A a.hash = cert_path

684N/A

684N/A # Add the action to the manifest to be signed

684N/A # since the action signs itself.

684N/A m.add_action(a, misc.EmptyI)

684N/A

684N/A # Set the signature value and certificate

684N/A # information for the signature action.

684N/A a.set_signature(m.gen_actions(),

684N/A key_path=key_path, chain_paths=chain_certs,

684N/A chash_dir=chash_dir)

684N/A

684N/A # The hash of 'a' is currently a path, we need

684N/A # to find the hash of that file to allow

684N/A # comparison to existing signatures.

684N/A hsh = None

684N/A if cert_path:

684N/A # Action identity still uses the 'hash'

684N/A # member of the action, so we need to

660N/A # stay with the sha1 hash.

684N/A hsh, _dummy = \

684N/A misc.get_data_digest(cert_path,

684N/A hash_func=hashlib.sha1)

684N/A

684N/A # Check whether the signature about to be added

684N/A # is identical, or almost identical, to existing

684N/A # signatures on the package. Because 'a' has

684N/A # already been added to the manifest, it is

684N/A # generated by gen_actions_by_type, so the cnt

684N/A # must be 2 or higher to be an issue.

684N/A cnt = 0

684N/A almost_identical = False

684N/A for a2 in m.gen_actions_by_type("signature"):

684N/A try:

679N/A if a.identical(a2, hsh):

684N/A cnt += 1

684N/A except api_errors.AlmostIdentical as e:

684N/A e.pkg = pfmri

684N/A errors.append(e)

684N/A almost_identical = True

684N/A if almost_identical:

684N/A continue

684N/A if cnt == 2:

684N/A continue

684N/A elif cnt > 2:

684N/A raise api_errors.DuplicateSignaturesAlreadyExist(pfmri)

684N/A assert cnt == 1, "Cnt was:{0}".format(cnt)

679N/A

684N/A if not dry_run:

684N/A # Append the finished signature action

684N/A # to the published manifest.

684N/A t = trans.Transaction(repo_uri,

684N/A pkg_name=str(pfmri), xport=xport,

684N/A pub=src_pub)

684N/A try:

684N/A t.append()

684N/A t.add(a)

679N/A for c in chain_certs:

684N/A t.add_file(c)

684N/A t.close(add_to_catalog=

684N/A add_to_catalog)

684N/A except:

684N/A if t.trans_id:

684N/A t.close(abandon=True)

684N/A raise

684N/A msg(_("Signed {0}").format(pfmri.get_fmri(

684N/A include_build=False)))

679N/A successful_publish = True

679N/A except (api_errors.ApiException, fmri.FmriError,

684N/A trans.TransactionError) as e:

684N/A errors.append(e)

684N/A if errors:

684N/A error("\n".join([str(e) for e in errors]))

684N/A if successful_publish:

684N/A return EXIT_PARTIAL

684N/A else:

684N/A return EXIT_OOPS

684N/A return EXIT_OK

684N/A except api_errors.ApiException as e:

725N/A error(e)

725N/A return EXIT_OOPS

725N/A finally:

725N/A shutil.rmtree(temp_root)

684N/A

684N/Aif __name__ == "__main__":

684N/A try:

684N/A __ret = main_func()

684N/A except (PipeError, KeyboardInterrupt):

684N/A # We don't want to display any messages here to prevent

684N/A # possible further broken pipe (EPIPE) errors.

684N/A __ret = EXIT_OOPS

684N/A except SystemExit as _e:

684N/A raise _e

679N/A except:

684N/A traceback.print_exc()

684N/A error(misc.get_traceback_message())

684N/A __ret = 99

684N/A sys.exit(__ret)

684N/A