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Diffstat (limited to 'cloudinit/config/cc_ssh_authkey_fingerprints.py')
-rwxr-xr-xcloudinit/config/cc_ssh_authkey_fingerprints.py75
1 files changed, 45 insertions, 30 deletions
diff --git a/cloudinit/config/cc_ssh_authkey_fingerprints.py b/cloudinit/config/cc_ssh_authkey_fingerprints.py
index 05d30ad1..020c3469 100755
--- a/cloudinit/config/cc_ssh_authkey_fingerprints.py
+++ b/cloudinit/config/cc_ssh_authkey_fingerprints.py
@@ -28,23 +28,21 @@ the keys can be specified, but defaults to ``sha256``.
import base64
import hashlib
-from cloudinit.simpletable import SimpleTable
-
+from cloudinit import ssh_util, util
from cloudinit.distros import ug_util
-from cloudinit import ssh_util
-from cloudinit import util
+from cloudinit.simpletable import SimpleTable
def _split_hash(bin_hash):
split_up = []
for i in range(0, len(bin_hash), 2):
- split_up.append(bin_hash[i:i + 2])
+ split_up.append(bin_hash[i : i + 2])
return split_up
-def _gen_fingerprint(b64_text, hash_meth='sha256'):
+def _gen_fingerprint(b64_text, hash_meth="sha256"):
if not b64_text:
- return ''
+ return ""
# TBD(harlowja): Maybe we should feed this into 'ssh -lf'?
try:
hasher = hashlib.new(hash_meth)
@@ -54,58 +52,75 @@ def _gen_fingerprint(b64_text, hash_meth='sha256'):
# Raised when b64 not really b64...
# or when the hash type is not really
# a known/supported hash type...
- return '?'
+ return "?"
def _is_printable_key(entry):
if any([entry.keytype, entry.base64, entry.comment, entry.options]):
- if (entry.keytype and entry.keytype.lower().strip()
- in ssh_util.VALID_KEY_TYPES):
+ if (
+ entry.keytype
+ and entry.keytype.lower().strip() in ssh_util.VALID_KEY_TYPES
+ ):
return True
return False
-def _pprint_key_entries(user, key_fn, key_entries, hash_meth='sha256',
- prefix='ci-info: '):
+def _pprint_key_entries(
+ user, key_fn, key_entries, hash_meth="sha256", prefix="ci-info: "
+):
if not key_entries:
- message = ("%sno authorized SSH keys fingerprints found for user %s.\n"
- % (prefix, user))
- util.multi_log(message)
+ message = (
+ "%sno authorized SSH keys fingerprints found for user %s.\n"
+ % (prefix, user)
+ )
+ util.multi_log(message, console=True, stderr=False)
return
- tbl_fields = ['Keytype', 'Fingerprint (%s)' % (hash_meth), 'Options',
- 'Comment']
+ tbl_fields = [
+ "Keytype",
+ "Fingerprint (%s)" % (hash_meth),
+ "Options",
+ "Comment",
+ ]
tbl = SimpleTable(tbl_fields)
for entry in key_entries:
if _is_printable_key(entry):
- row = [entry.keytype or '-',
- _gen_fingerprint(entry.base64, hash_meth) or '-',
- entry.options or '-',
- entry.comment or '-']
+ row = [
+ entry.keytype or "-",
+ _gen_fingerprint(entry.base64, hash_meth) or "-",
+ entry.options or "-",
+ entry.comment or "-",
+ ]
tbl.add_row(row)
authtbl_s = tbl.get_string()
authtbl_lines = authtbl_s.splitlines()
max_len = len(max(authtbl_lines, key=len))
lines = [
- util.center("Authorized keys from %s for user %s" %
- (key_fn, user), "+", max_len),
+ util.center(
+ "Authorized keys from %s for user %s" % (key_fn, user),
+ "+",
+ max_len,
+ ),
]
lines.extend(authtbl_lines)
for line in lines:
- util.multi_log(text="%s%s\n" % (prefix, line),
- stderr=False, console=True)
+ util.multi_log(
+ text="%s%s\n" % (prefix, line), stderr=False, console=True
+ )
def handle(name, cfg, cloud, log, _args):
- if util.is_true(cfg.get('no_ssh_fingerprints', False)):
- log.debug(("Skipping module named %s, "
- "logging of SSH fingerprints disabled"), name)
+ if util.is_true(cfg.get("no_ssh_fingerprints", False)):
+ log.debug(
+ "Skipping module named %s, logging of SSH fingerprints disabled",
+ name,
+ )
return
hash_meth = util.get_cfg_option_str(cfg, "authkey_hash", "sha256")
(users, _groups) = ug_util.normalize_users_groups(cfg, cloud.distro)
for (user_name, _cfg) in users.items():
(key_fn, key_entries) = ssh_util.extract_authorized_keys(user_name)
- _pprint_key_entries(user_name, key_fn,
- key_entries, hash_meth)
+ _pprint_key_entries(user_name, key_fn, key_entries, hash_meth)
+
# vi: ts=4 expandtab