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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
schemas	[ DIR ]	drwxr-xr-x
__init__.py	40 B	-rw-r--r--
cc_ansible.py	8.17 KB	-rw-r--r--
cc_apk_configure.py	4.23 KB	-rw-r--r--
cc_apt_configure.py	38.23 KB	-rw-r--r--
cc_apt_pipelining.py	1.85 KB	-rw-r--r--
cc_bootcmd.py	1.75 KB	-rw-r--r--
cc_byobu.py	2.72 KB	-rw-r--r--
cc_ca_certs.py	8.67 KB	-rw-r--r--
cc_chef.py	13.19 KB	-rw-r--r--
cc_disable_ec2_metadata.py	1.6 KB	-rw-r--r--
cc_disk_setup.py	29.6 KB	-rw-r--r--
cc_fan.py	1.95 KB	-rw-r--r--
cc_final_message.py	2.5 KB	-rw-r--r--
cc_growpart.py	18.37 KB	-rw-r--r--
cc_grub_dpkg.py	5.39 KB	-rw-r--r--
cc_install_hotplug.py	3.19 KB	-rw-r--r--
cc_keyboard.py	1.49 KB	-rw-r--r--
cc_keys_to_console.py	2.09 KB	-rw-r--r--
cc_landscape.py	3.06 KB	-rw-r--r--
cc_locale.py	1.18 KB	-rw-r--r--
cc_lxd.py	13.44 KB	-rw-r--r--
cc_mcollective.py	4.11 KB	-rw-r--r--
cc_mounts.py	18.08 KB	-rw-r--r--
cc_ntp.py	18.91 KB	-rw-r--r--
cc_package_update_upgrade_inst...	3.99 KB	-rw-r--r--
cc_phone_home.py	3.74 KB	-rw-r--r--
cc_power_state_change.py	6.15 KB	-rw-r--r--
cc_puppet.py	10.72 KB	-rw-r--r--
cc_reset_rmc.py	4.33 KB	-rw-r--r--
cc_resizefs.py	10.63 KB	-rw-r--r--
cc_resolv_conf.py	3.13 KB	-rw-r--r--
cc_rh_subscription.py	15.19 KB	-rw-r--r--
cc_rsyslog.py	11.47 KB	-rw-r--r--
cc_runcmd.py	1.6 KB	-rw-r--r--
cc_salt_minion.py	3.96 KB	-rw-r--r--
cc_scripts_per_boot.py	1.27 KB	-rw-r--r--
cc_scripts_per_instance.py	1.26 KB	-rw-r--r--
cc_scripts_per_once.py	1.24 KB	-rw-r--r--
cc_scripts_user.py	1.25 KB	-rw-r--r--
cc_scripts_vendor.py	1.26 KB	-rw-r--r--
cc_seed_random.py	3 KB	-rw-r--r--
cc_set_hostname.py	3.4 KB	-rw-r--r--
cc_set_passwords.py	10.32 KB	-rw-r--r--
cc_snap.py	3.32 KB	-rw-r--r--
cc_spacewalk.py	2.64 KB	-rw-r--r--
cc_ssh.py	10.96 KB	-rw-r--r--
cc_ssh_authkey_fingerprints.py	3.76 KB	-rw-r--r--
cc_ssh_import_id.py	5.42 KB	-rw-r--r--
cc_timezone.py	1.13 KB	-rw-r--r--
cc_ubuntu_autoinstall.py	1.24 KB	-rw-r--r--
cc_ubuntu_drivers.py	4.08 KB	-rw-r--r--
cc_ubuntu_pro.py	13.64 KB	-rw-r--r--
cc_update_etc_hosts.py	2.46 KB	-rw-r--r--
cc_update_hostname.py	2.18 KB	-rw-r--r--
cc_users_groups.py	2.86 KB	-rw-r--r--
cc_wireguard.py	6.67 KB	-rw-r--r--
cc_write_files.py	6 KB	-rw-r--r--
cc_write_files_deferred.py	1.28 KB	-rw-r--r--
cc_yum_add_repo.py	4.53 KB	-rw-r--r--
cc_zypper_add_repo.py	4.93 KB	-rw-r--r--
modules.py	13.32 KB	-rw-r--r--
schema.py	50.77 KB	-rw-r--r--

Code Editor : cc_ssh_authkey_fingerprints.py

# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
# This file is part of cloud-init. See LICENSE file for license information.
"""SSH AuthKey Fingerprints: Log fingerprints of user SSH keys"""

import base64
import hashlib
import logging

from cloudinit import ssh_util, util
from cloudinit.cloud import Cloud
from cloudinit.config import Config
from cloudinit.config.schema import MetaSchema
from cloudinit.distros import ALL_DISTROS, ug_util
from cloudinit.log import log_util
from cloudinit.settings import PER_INSTANCE
from cloudinit.simpletable import SimpleTable

meta: MetaSchema = {
    "id": "cc_ssh_authkey_fingerprints",
    "distros": [ALL_DISTROS],
    "frequency": PER_INSTANCE,
    "activate_by_schema_keys": [],
}

LOG = logging.getLogger(__name__)

def _split_hash(bin_hash):
    split_up = []
    for i in range(0, len(bin_hash), 2):
        split_up.append(bin_hash[i : i + 2])
    return split_up

def _gen_fingerprint(b64_text, hash_meth="sha256"):
    if not b64_text:
        return ""
    # TBD(harlowja): Maybe we should feed this into 'ssh -lf'?
    try:
        hasher = hashlib.new(hash_meth)
        hasher.update(base64.b64decode(b64_text))
        return ":".join(_split_hash(hasher.hexdigest()))
    except (TypeError, ValueError):
        # Raised when b64 not really b64...
        # or when the hash type is not really
        # a known/supported hash type...
        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
        ):
            return True
    return False

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)
        )
        log_util.multi_log(message, console=True, stderr=False)
        return
    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 "-",
            ]
            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,
        ),
    ]
    lines.extend(authtbl_lines)
    for line in lines:
        log_util.multi_log(
            text="%s%s\n" % (prefix, line), stderr=False, console=True
        )

def handle(name: str, cfg: Config, cloud: Cloud, args: list) -> None:
    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():
        if _cfg.get("no_create_home") or _cfg.get("system"):
            LOG.debug(
                "Skipping printing of ssh fingerprints for user '%s' because "
                "no home directory is created",
                user_name,
            )
            continue

(key_fn, key_entries) = ssh_util.extract_authorized_keys(user_name)
        _pprint_key_entries(user_name, key_fn, key_entries, hash_meth)

${this.title}

Code Editor : cc_ssh_authkey_fingerprints.py