223 lines
7.0 KiB
Python
223 lines
7.0 KiB
Python
# Copyright 2015 Canonical, Ltd.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import json
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import logging
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import os
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import pwd
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import shlex
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import sys
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from subiquitycore.ssh import host_key_info, get_ips_standalone
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from subiquitycore.snapd import SnapdConnection
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from subiquitycore.tuicontroller import TuiController
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from subiquitycore.utils import disable_console_conf, run_command
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from console_conf.ui.views import IdentityView, LoginView
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log = logging.getLogger('console_conf.controllers.identity')
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def get_core_version():
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""" For a ubuntu-core system, return its version or None """
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path = "/usr/lib/os-release"
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try:
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with open(path, "r") as fp:
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content = fp.read()
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except FileNotFoundError:
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return None
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version = None
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for line in shlex.split(content):
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key, _, value = line.partition("=")
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if key == "ID" and value != "ubuntu-core":
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return None
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if key == "VERSION_ID":
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version = value
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break
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return version
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def get_managed():
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""" Check if device is managed """
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con = SnapdConnection('', '/run/snapd.socket')
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return con.get('v2/system-info').json()['result']['managed']
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def get_realname(username):
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try:
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info = pwd.getpwnam(username)
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except KeyError:
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return ''
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return info.pw_gecos.split(',', 1)[0]
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def get_device_owner():
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""" Get device owner, if any """
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con = SnapdConnection('', '/run/snapd.socket')
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for user in con.get('v2/users').json()['result']:
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if 'username' not in user:
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continue
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username = user['username']
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homedir = '/home/' + username
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if os.path.isdir(homedir):
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return {
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'username': username,
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'realname': get_realname(username),
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'homedir': homedir,
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}
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return None
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login_details_tmpl = """\
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Ubuntu Core {version} on {first_ip} ({tty_name})
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{host_key_info}
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To login:
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{sshcommands}
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Personalize your account at https://login.ubuntu.com.
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"""
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login_details_tmpl_no_ip = """\
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Ubuntu Core {version} on <no ip address> ({tty_name})
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You cannot log in until the system has an IP address. (Is there
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supposed to be a DHCP server running on your network?)
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Personalize your account at https://login.ubuntu.com.
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"""
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def write_login_details(fp, username, ips):
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sshcommands = "\n"
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for ip in ips:
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sshcommands += " ssh %s@%s\n" % (username, ip)
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tty_name = os.ttyname(0)[5:] # strip off the /dev/
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version = get_core_version() or "16"
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if len(ips) == 0:
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fp.write(login_details_tmpl_no_ip.format(
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sshcommands=sshcommands, tty_name=tty_name, version=version))
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else:
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first_ip = ips[0]
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fp.write(login_details_tmpl.format(sshcommands=sshcommands,
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host_key_info=host_key_info(),
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tty_name=tty_name,
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first_ip=first_ip,
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version=version))
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def write_login_details_standalone():
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owner = get_device_owner()
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ips = get_ips_standalone()
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if len(ips) == 0:
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if owner is None:
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print("device managed without user")
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return 2
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else:
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tty_name = os.ttyname(0)[5:]
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version = get_core_version() or "16"
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print(login_details_tmpl_no_ip.format(
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tty_name=tty_name, version=version))
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return 2
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if owner is None:
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print("device managed without user @ {}".format(', '.join(ips)))
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else:
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write_login_details(sys.stdout, owner['username'], ips)
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return 0
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class IdentityController(TuiController):
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def __init__(self, app):
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super().__init__(app)
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self.model = app.base_model.identity
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def make_ui(self):
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if get_managed():
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device_owner = get_device_owner()
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if device_owner:
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self.model.add_user(device_owner)
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key_file = os.path.join(device_owner['homedir'],
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".ssh/authorized_keys")
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cp = run_command(['ssh-keygen', '-lf', key_file])
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self.model.user.fingerprints = (
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cp.stdout.replace('\r', '').splitlines())
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return self.make_login_view()
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else:
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return IdentityView(self.model, self)
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def identity_done(self, email):
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if self.opts.dry_run:
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result = {
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'realname': email,
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'username': email,
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}
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self.model.add_user(result)
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login_details_path = '.subiquity/login-details.txt'
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else:
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self.app.urwid_loop.draw_screen()
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cp = run_command(
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["snap", "create-user", "--sudoer", "--json", email])
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if cp.returncode != 0:
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if isinstance(self.ui.body, IdentityView):
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self.ui.body.snap_create_user_failed(
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"Creating user failed:", cp.stderr)
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return
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else:
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data = json.loads(cp.stdout)
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result = {
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'realname': email,
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'username': data['username'],
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}
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os.makedirs('/run/console-conf', exist_ok=True)
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login_details_path = '/run/console-conf/login-details.txt'
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self.model.add_user(result)
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ips = []
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net_model = self.app.base_model.network
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for dev in net_model.get_all_netdevs():
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ips.extend(dev.actual_global_ip_addresses)
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with open(login_details_path, 'w') as fp:
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write_login_details(fp, result['username'], ips)
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self.login()
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def cancel(self):
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# You can only go back if we haven't created a user yet.
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if self.model.user is None:
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self.app.prev_screen()
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def make_login_view(self):
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title = "Configuration Complete"
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self.ui.set_header(title)
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net_model = self.app.base_model.network
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ifaces = net_model.get_all_netdevs()
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login_view = LoginView(self.opts, self.model, self, ifaces)
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login_view._w.focus_position = 2
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return login_view
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def login(self):
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self.ui.set_body(self.make_login_view())
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def login_done(self):
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if not self.opts.dry_run:
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# stop the console-conf services (this will kill the
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# current process).
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disable_console_conf()
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self.app.exit()
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