Merge pull request #918 from mwhudson/set-installer-password
have subiquity set password for installer user in live session
This commit is contained in:
commit
b0ac3960be
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@ -50,7 +50,7 @@ from subiquity.common.types import (
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from subiquity.journald import journald_listen
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from subiquity.ui.frame import SubiquityUI
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from subiquity.ui.views.error import ErrorReportStretchy
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from subiquity.ui.views.help import HelpMenu
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from subiquity.ui.views.help import HelpMenu, ssh_help_texts
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from subiquity.ui.views.installprogress import (
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InstallConfirmation,
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)
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@ -283,12 +283,11 @@ class SubiquityClient(TuiApplication):
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self.interactive = status.interactive
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if self.interactive:
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if self.opts.ssh:
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from subiquity.ui.views.help import (
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ssh_help_texts, get_installer_password)
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from subiquitycore.ssh import get_ips_standalone
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texts = ssh_help_texts(
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get_ips_standalone(),
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get_installer_password(self.opts.dry_run))
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ssh_info = self.client.meta.ssh_info.GET()
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if ssh_info is None:
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print("no ssh?")
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return
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texts = ssh_help_texts(ssh_info)
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for line in texts:
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if hasattr(line, 'text'):
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if line.text.startswith('installer@'):
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@ -31,10 +31,10 @@ class WelcomeController(SubiquityTuiController):
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i18n.switch_language(language)
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serial = self.app.opts.run_on_serial
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if serial:
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ips = await self.app.client.network.global_addresses.GET()
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ssh_info = await self.app.client.meta.ssh_info.GET()
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else:
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ips = None
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return WelcomeView(self, language, serial, ips)
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ssh_info = None
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return WelcomeView(self, language, serial, ssh_info)
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def run_answers(self):
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if 'lang' in self.answers:
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@ -36,6 +36,7 @@ from subiquity.common.types import (
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SnapListResponse,
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SnapSelection,
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SSHData,
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LiveSessionSSHInfo,
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StorageResponse,
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ZdevInfo,
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)
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@ -67,6 +68,10 @@ class API:
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class restart:
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def POST() -> None:
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"""Restart the server process."""
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class ssh_info:
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def GET() -> Optional[LiveSessionSSHInfo]: ...
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class errors:
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class wait:
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def GET(error_ref: ErrorReportRef) -> ErrorReportRef:
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@ -79,6 +79,28 @@ class ApplicationStatus:
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event_syslog_id: str
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class PasswordKind(enum.Enum):
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NONE = enum.auto()
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KNOWN = enum.auto()
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UNKNOWN = enum.auto()
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@attr.s(auto_attribs=True)
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class KeyFingerprint:
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keytype: str
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fingerprint: str
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@attr.s(auto_attribs=True)
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class LiveSessionSSHInfo:
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username: str
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password_kind: PasswordKind
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password: Optional[str]
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authorized_key_fingerprints: List[KeyFingerprint]
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ips: List[str]
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host_key_fingerprints: List[KeyFingerprint]
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class RefreshCheckState(enum.Enum):
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UNKNOWN = enum.auto()
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AVAILABLE = enum.auto()
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@ -24,6 +24,8 @@ from typing import List, Optional
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from aiohttp import web
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from cloudinit import atomic_helper, safeyaml, stages
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from cloudinit.config.cc_set_passwords import rand_user_password
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from cloudinit.distros import ug_util
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import jsonschema
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@ -35,7 +37,11 @@ from subiquitycore.async_helpers import run_in_thread, schedule_task
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from subiquitycore.context import with_context
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from subiquitycore.core import Application
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from subiquitycore.prober import Prober
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from subiquitycore.utils import arun_command
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from subiquitycore.ssh import (
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host_key_fingerprints,
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user_key_fingerprints,
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)
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from subiquitycore.utils import arun_command, run_command
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from subiquity.common.api.server import (
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bind,
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@ -51,6 +57,9 @@ from subiquity.common.types import (
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ApplicationState,
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ApplicationStatus,
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ErrorReportRef,
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KeyFingerprint,
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LiveSessionSSHInfo,
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PasswordKind,
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)
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from subiquity.server.controller import SubiquityController
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from subiquity.models.subiquity import SubiquityModel
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@ -98,6 +107,48 @@ class MetaController:
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if controller.endpoint in endpoints:
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controller.configured()
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async def ssh_info_GET(self) -> Optional[LiveSessionSSHInfo]:
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ips = []
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for dev in self.app.base_model.network.get_all_netdevs():
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ips.extend(map(str, dev.actual_global_ip_addresses))
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if not ips:
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return None
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username = self.app.installer_user_name
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if username is None:
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return None
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user_fingerprints = [
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KeyFingerprint(keytype, fingerprint)
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for keytype, fingerprint in user_key_fingerprints(username)
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]
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if self.app.installer_user_passwd_kind == PasswordKind.NONE:
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if not user_key_fingerprints:
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return None
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host_fingerprints = [
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KeyFingerprint(keytype, fingerprint)
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for keytype, fingerprint in host_key_fingerprints()
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]
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return LiveSessionSSHInfo(
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username=username,
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password_kind=self.app.installer_user_passwd_kind,
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password=self.app.installer_user_passwd,
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authorized_key_fingerprints=user_fingerprints,
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ips=ips,
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host_key_fingerprints=host_fingerprints)
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def get_installer_password_from_cloudinit_log():
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try:
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fp = open("/var/log/cloud-init-output.log")
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except FileNotFoundError:
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return None
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with fp:
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for line in fp:
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if line.startswith("installer:"):
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return line[len("installer:"):].strip()
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return None
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class SubiquityServer(Application):
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@ -157,6 +208,9 @@ class SubiquityServer(Application):
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self.confirming_tty = ''
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self.fatal_error = None
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self.running_error_commands = False
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self.installer_user_name = None
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self.installer_user_passwd_kind = PasswordKind.NONE
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self.installer_user_passwd = None
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self.echo_syslog_id = 'subiquity_echo.{}'.format(os.getpid())
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self.event_syslog_id = 'subiquity_event.{}'.format(os.getpid())
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@ -366,14 +420,14 @@ class SubiquityServer(Application):
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init = stages.Init()
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init.read_cfg()
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init.fetch(existing="trust")
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cloud = init.cloudify()
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self.cloud = init.cloudify()
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autoinstall_path = '/autoinstall.yaml'
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if 'autoinstall' in cloud.cfg:
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if 'autoinstall' in self.cloud.cfg:
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if not os.path.exists(autoinstall_path):
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atomic_helper.write_file(
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autoinstall_path,
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safeyaml.dumps(
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cloud.cfg['autoinstall']).encode('utf-8'),
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self.cloud.cfg['autoinstall']).encode('utf-8'),
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mode=0o600)
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if os.path.exists(autoinstall_path):
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self.opts.autoinstall = autoinstall_path
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@ -382,11 +436,67 @@ class SubiquityServer(Application):
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"cloud-init status: %r, assumed disabled",
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status_txt)
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def _user_has_password(self, username):
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with open('/etc/shadow') as fp:
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for line in fp:
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if line.startswith(username + ":$"):
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return True
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return False
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def set_installer_password(self):
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passfile = self.state_path("installer-user-passwd")
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if os.path.exists(passfile):
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with open(passfile) as fp:
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contents = fp.read()
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self.installer_user_passwd_kind = PasswordKind.KNOWN
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self.installer_user_name, self.installer_user_passwd = \
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contents.split(':', 1)
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return
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def use_passwd(passwd):
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self.installer_user_passwd = passwd
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self.installer_user_passwd_kind = PasswordKind.KNOWN
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with open(passfile, 'w') as fp:
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fp.write(self.installer_user_name + ':' + passwd)
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if self.opts.dry_run:
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self.installer_user_name = os.environ['USER']
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use_passwd(rand_user_password())
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return
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(users, _groups) = ug_util.normalize_users_groups(
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self.cloud.cfg, self.cloud.distro)
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(username, _user_config) = ug_util.extract_default(users)
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self.installer_user_name = username
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if self._user_has_password(username):
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# Was the password set to a random password by a version of
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# cloud-init that records the username in the log? (This is the
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# case we hit on upgrading the subiquity snap)
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passwd = get_installer_password_from_cloudinit_log()
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if passwd:
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use_passwd(passwd)
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else:
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self.installer_user_passwd_kind = PasswordKind.UNKNOWN
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elif not user_key_fingerprints(username):
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passwd = rand_user_password()
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cp = run_command('chpasswd', input=username + ':'+passwd+'\n')
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if cp.returncode == 0:
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use_passwd(passwd)
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else:
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log.info("setting installer password failed %s", cp)
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self.installer_user_passwd_kind = PasswordKind.NONE
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else:
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self.installer_user_passwd_kind = PasswordKind.NONE
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async def start(self):
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self.controllers.load_all()
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await self.start_api_server()
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self.update_state(ApplicationState.CLOUD_INIT_WAIT)
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await self.wait_for_cloudinit()
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self.set_installer_password()
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self.load_autoinstall_config(only_early=True)
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if self.autoinstall_config and self.controllers.Early.cmds:
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stamp_file = self.state_path("early-commands")
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@ -15,7 +15,6 @@
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import logging
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import os
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import io
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from urwid import (
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connect_signal,
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@ -25,9 +24,8 @@ from urwid import (
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Text,
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)
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from subiquitycore.async_helpers import schedule_task
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from subiquitycore.lsb_release import lsb_release
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from subiquitycore.ssh import host_key_info
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from subiquitycore.ssh import summarize_host_keys
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from subiquitycore.ui.buttons import (
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header_btn,
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other_btn,
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@ -57,6 +55,7 @@ from subiquitycore.ui.width import (
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widget_width,
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)
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from subiquity.common.types import PasswordKind
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from subiquity.ui.views.error import ErrorReportListStretchy
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log = logging.getLogger('subiquity.ui.help')
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@ -110,13 +109,30 @@ To connect, SSH to any of these addresses:
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""")
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SSH_HELP_ONE_ADDRESSES = _("""
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To connect, SSH to installer@{ip}.
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To connect, SSH to {username}@{ip}.""")
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SSH_HELP_EPILOGUE_KNOWN_PASS_NO_KEYS = _("""\
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The password you should use is "{password}".""")
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SSH_HELP_EPILOGUE_UNKNOWN_PASS_NO_KEYS = _("""\
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You should use the preconfigured password passed to cloud-init.""")
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SSH_HELP_EPILOGUE_ONE_KEY = _("""\
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You can log in with the {keytype} key with fingerprint:
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{fingerprint}
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""")
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SSH_HELP_EPILOGUE = _("""
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The password you should use is "{password}".
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SSH_HELP_EPILOGUE_MULTIPLE_KEYS = _("""\
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You can log in with one of the following keys:
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""")
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SSH_HELP_EPILOGUE_KNOWN_PASS_KEYS = _("""
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Or you can use the password "{password}".""")
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SSH_HELP_EPILOGUE_UNKNOWN_PASS_KEYS = _("""
|
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Or you can use the preconfigured password passed to cloud-init.""")
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|
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SSH_HELP_NO_ADDRESSES = _("""
|
||||
Unfortunately this system seems to have no global IP addresses at this
|
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time.
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|
@ -128,26 +144,52 @@ been set.
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""")
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|
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|
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def ssh_help_texts(ips, password):
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def ssh_help_texts(ssh_info):
|
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|
||||
texts = [_(SSH_HELP_PROLOGUE), ""]
|
||||
|
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if len(ips) > 0:
|
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if len(ips) > 1:
|
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texts.append(rewrap(_(SSH_HELP_MULTIPLE_ADDRESSES)))
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if len(ssh_info.ips) > 0:
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if len(ssh_info.ips) > 1:
|
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texts.append(_(SSH_HELP_MULTIPLE_ADDRESSES))
|
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texts.append("")
|
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for ip in ips:
|
||||
for ip in ssh_info.ips:
|
||||
texts.append(Text(
|
||||
"installer@" + str(ip), align='center'))
|
||||
"{}@{}".format(ssh_info.username, ip), align='center'))
|
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else:
|
||||
texts.append(_(SSH_HELP_ONE_ADDRESSES).format(
|
||||
ip=str(ips[0])))
|
||||
username=ssh_info.username, ip=str(ssh_info.ips[0])))
|
||||
texts.append("")
|
||||
texts.append(
|
||||
rewrap(_(SSH_HELP_EPILOGUE).format(
|
||||
password=password)))
|
||||
if ssh_info.authorized_key_fingerprints:
|
||||
if len(ssh_info.authorized_key_fingerprints) == 1:
|
||||
key = ssh_info.authorized_key_fingerprints[0]
|
||||
texts.append(Text(_(SSH_HELP_EPILOGUE_ONE_KEY).format(
|
||||
keytype=key.keytype, fingerprint=key.fingerprint)))
|
||||
else:
|
||||
texts.append(_(SSH_HELP_EPILOGUE_MULTIPLE_KEYS))
|
||||
texts.append("")
|
||||
rows = []
|
||||
for key in ssh_info.authorized_key_fingerprints:
|
||||
rows.append(
|
||||
TableRow([Text(key.keytype), Text(key.fingerprint)]))
|
||||
texts.append(TablePile(rows))
|
||||
if ssh_info.password_kind == PasswordKind.KNOWN:
|
||||
texts.append("")
|
||||
texts.append(SSH_HELP_EPILOGUE_KNOWN_PASS_KEYS.format(
|
||||
password=ssh_info.password))
|
||||
elif ssh_info.password_kind == PasswordKind.UNKNOWN:
|
||||
texts.append("")
|
||||
texts.append(SSH_HELP_EPILOGUE_UNKNOWN_PASS_KEYS)
|
||||
else:
|
||||
if ssh_info.password_kind == PasswordKind.KNOWN:
|
||||
texts.append(SSH_HELP_EPILOGUE_KNOWN_PASS_NO_KEYS.format(
|
||||
password=ssh_info.password))
|
||||
elif ssh_info.password_kind == PasswordKind.UNKNOWN:
|
||||
texts.append(SSH_HELP_EPILOGUE_UNKNOWN_PASS_NO_KEYS)
|
||||
texts.append("")
|
||||
texts.append(Text(host_key_info()))
|
||||
texts.append(Text(summarize_host_keys([
|
||||
(key.keytype, key.fingerprint)
|
||||
for key in ssh_info.host_key_fingerprints
|
||||
])))
|
||||
else:
|
||||
texts.append("")
|
||||
texts.append(_(SSH_HELP_NO_ADDRESSES))
|
||||
|
@ -241,30 +283,6 @@ def menu_item(text, on_press=None):
|
|||
return Color.frame_button(icon)
|
||||
|
||||
|
||||
async def get_global_addresses(app):
|
||||
return await app.wait_with_text_dialog(
|
||||
app.client.network.global_addresses.GET(),
|
||||
_("Getting network info"),
|
||||
can_cancel=True)
|
||||
|
||||
|
||||
def get_installer_password(dry_run=False):
|
||||
if dry_run:
|
||||
fp = io.StringIO('installer:rAnd0Mpass')
|
||||
else:
|
||||
try:
|
||||
fp = open("/var/log/cloud-init-output.log")
|
||||
except FileNotFoundError:
|
||||
fp = io.StringIO('')
|
||||
|
||||
with fp:
|
||||
for line in fp:
|
||||
if line.startswith("installer:"):
|
||||
return line[len("installer:"):].strip()
|
||||
|
||||
return None
|
||||
|
||||
|
||||
class OpenHelpMenu(WidgetWrap):
|
||||
|
||||
def __init__(self, parent):
|
||||
|
@ -282,7 +300,7 @@ class OpenHelpMenu(WidgetWrap):
|
|||
drop_to_shell,
|
||||
keys,
|
||||
}
|
||||
if self.parent.ssh_password is not None:
|
||||
if self.parent.ssh_info is not None:
|
||||
ssh_help = menu_item(
|
||||
_("Help on SSH access"), on_press=self.parent.ssh_help)
|
||||
buttons.add(ssh_help)
|
||||
|
@ -324,7 +342,7 @@ class OpenHelpMenu(WidgetWrap):
|
|||
about,
|
||||
]
|
||||
|
||||
if self.parent.ssh_password is not None:
|
||||
if self.parent.ssh_info is not None:
|
||||
entries.append(ssh_help)
|
||||
|
||||
if self.parent.app.opts.run_on_serial:
|
||||
|
@ -379,17 +397,20 @@ class HelpMenu(PopUpLauncher):
|
|||
def __init__(self, app):
|
||||
self.app = app
|
||||
self.btn = header_btn(_("Help"), on_press=self._open)
|
||||
self.ssh_password = None
|
||||
self.ssh_info = None
|
||||
self.current_help = None
|
||||
super().__init__(self.btn)
|
||||
|
||||
def _open(self, sender):
|
||||
log.debug("open help menu")
|
||||
async def _get_ssh_info(self):
|
||||
self.ssh_info = await self.app.wait_with_text_dialog(
|
||||
self.app.client.meta.ssh_info.GET(), "Getting SSH info")
|
||||
self.open_pop_up()
|
||||
|
||||
def _open(self, sender):
|
||||
log.debug("open help menu")
|
||||
self.app.aio_loop.create_task(self._get_ssh_info())
|
||||
|
||||
def create_pop_up(self):
|
||||
if self.ssh_password is None:
|
||||
self.ssh_password = get_installer_password(self.app.opts.dry_run)
|
||||
self._menu = OpenHelpMenu(self)
|
||||
return self._menu
|
||||
|
||||
|
@ -435,10 +456,8 @@ class HelpMenu(PopUpLauncher):
|
|||
_("About the installer"),
|
||||
template.format(**info)))
|
||||
|
||||
async def _ssh_help(self):
|
||||
texts = ssh_help_texts(
|
||||
await get_global_addresses(self.app),
|
||||
self.ssh_password)
|
||||
def ssh_help(self, sender=None):
|
||||
texts = ssh_help_texts(self.ssh_info)
|
||||
|
||||
self._show_overlay(
|
||||
SimpleTextStretchy(
|
||||
|
@ -447,9 +466,6 @@ class HelpMenu(PopUpLauncher):
|
|||
*texts,
|
||||
))
|
||||
|
||||
def ssh_help(self, sender=None):
|
||||
schedule_task(self._ssh_help())
|
||||
|
||||
def show_local(self, local_title, local_doc):
|
||||
|
||||
def cb(sender=None):
|
||||
|
|
|
@ -30,10 +30,6 @@ from subiquitycore.ui.utils import button_pile, rewrap, screen
|
|||
from subiquitycore.screen import is_linux_tty
|
||||
from subiquitycore.view import BaseView
|
||||
|
||||
from subiquity.ui.views.help import (
|
||||
get_installer_password,
|
||||
)
|
||||
|
||||
log = logging.getLogger("subiquity.views.welcome")
|
||||
|
||||
|
||||
|
@ -85,11 +81,11 @@ def get_languages():
|
|||
class WelcomeView(BaseView):
|
||||
title = "Willkommen! Bienvenue! Welcome! Добро пожаловать! Welkom!"
|
||||
|
||||
def __init__(self, controller, cur_lang, serial, ips):
|
||||
def __init__(self, controller, cur_lang, serial, ssh_info):
|
||||
self.controller = controller
|
||||
self.cur_lang = cur_lang
|
||||
if serial and not controller.app.rich_mode:
|
||||
s = self.make_serial_choices(ips)
|
||||
s = self.make_serial_choices(ssh_info)
|
||||
self.title = "Welcome!"
|
||||
else:
|
||||
s = self.make_language_choices()
|
||||
|
@ -119,8 +115,7 @@ class WelcomeView(BaseView):
|
|||
lb, buttons=None, narrow_rows=True,
|
||||
excerpt=_("Use UP, DOWN and ENTER keys to select your language."))
|
||||
|
||||
def make_serial_choices(self, ips):
|
||||
ssh_password = get_installer_password(self.controller.opts.dry_run)
|
||||
def make_serial_choices(self, ssh_info):
|
||||
btns = [
|
||||
other_btn(
|
||||
label="Switch to rich mode",
|
||||
|
@ -135,13 +130,13 @@ class WelcomeView(BaseView):
|
|||
Text(rewrap(SERIAL_TEXT)),
|
||||
Text(""),
|
||||
]
|
||||
if ssh_password and ips:
|
||||
if ssh_info:
|
||||
widgets.append(Text(rewrap(SSH_TEXT)))
|
||||
widgets.append(Text(""))
|
||||
btns.insert(1, other_btn(
|
||||
label="View SSH instructions",
|
||||
on_press=self.ssh_help,
|
||||
user_arg=ssh_password))
|
||||
user_arg=ssh_info))
|
||||
widgets.extend([
|
||||
button_pile(btns),
|
||||
])
|
||||
|
@ -154,9 +149,9 @@ class WelcomeView(BaseView):
|
|||
self.controller.ui.set_header(self.title)
|
||||
self._w = self.make_language_choices()
|
||||
|
||||
def ssh_help(self, sender, password):
|
||||
def ssh_help(self, sender, ssh_info):
|
||||
menu = self.controller.app.help_menu
|
||||
menu.ssh_password = password
|
||||
menu.ssh_info = ssh_info
|
||||
menu.ssh_help()
|
||||
|
||||
def choose_language(self, sender, code):
|
||||
|
|
|
@ -14,6 +14,8 @@
|
|||
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
import logging
|
||||
import os
|
||||
import pwd
|
||||
|
||||
from subiquitycore.utils import run_command
|
||||
|
||||
|
@ -36,13 +38,20 @@ def host_key_fingerprints():
|
|||
keyfiles.append(line.split(None, 1)[1])
|
||||
info = []
|
||||
for keyfile in keyfiles:
|
||||
cp = run_command(['ssh-keygen', '-lf', keyfile])
|
||||
if cp.returncode != 0:
|
||||
log.debug("ssh-keygen -lf %s failed %r", keyfile, cp.stderr)
|
||||
continue
|
||||
parts = cp.stdout.strip().split()
|
||||
length, fingerprint, host, keytype = parts
|
||||
keytype = keytype.strip('()')
|
||||
info.extend(fingerprints(keyfile))
|
||||
return info
|
||||
|
||||
|
||||
def fingerprints(keyfile):
|
||||
info = []
|
||||
cp = run_command(['ssh-keygen', '-lf', keyfile])
|
||||
if cp.returncode != 0:
|
||||
log.debug("ssh-keygen -lf %s failed %r", keyfile, cp.stderr)
|
||||
return info
|
||||
for line in cp.stdout.splitlines():
|
||||
parts = line.strip().replace('\r', '').split()
|
||||
fingerprint = parts[1]
|
||||
keytype = parts[-1].strip('()')
|
||||
info.append((keytype, fingerprint))
|
||||
return info
|
||||
|
||||
|
@ -55,13 +64,16 @@ host_key_tmpl = """
|
|||
{keytype:{width}} {fingerprint}"""
|
||||
|
||||
single_host_key_tmpl = _("""\
|
||||
The {keytype} host key fingerprints is:
|
||||
The {keytype} host key fingerprint is:
|
||||
{fingerprint}
|
||||
""")
|
||||
|
||||
|
||||
def host_key_info():
|
||||
fingerprints = host_key_fingerprints()
|
||||
return summarize_host_keys(host_key_fingerprints())
|
||||
|
||||
|
||||
def summarize_host_keys(fingerprints):
|
||||
if len(fingerprints) == 0:
|
||||
return ''
|
||||
if len(fingerprints) == 1:
|
||||
|
@ -77,6 +89,19 @@ def host_key_info():
|
|||
return "".join(lines)
|
||||
|
||||
|
||||
def user_key_fingerprints(username):
|
||||
try:
|
||||
user_info = pwd.getpwnam(username)
|
||||
except KeyError:
|
||||
log.exception("getpwnam(%s) failed", username)
|
||||
return []
|
||||
user_key_file = '{}/.ssh/authorized_keys'.format(user_info.pw_dir)
|
||||
if os.path.exists(user_key_file):
|
||||
return fingerprints(user_key_file)
|
||||
else:
|
||||
return []
|
||||
|
||||
|
||||
def get_ips_standalone():
|
||||
from probert.prober import Prober
|
||||
from subiquitycore.models.network import NETDEV_IGNORED_IFACE_TYPES
|
||||
|
|
Loading…
Reference in New Issue