bd8c4d84c2
the previous 'user' and make those locations go through the new distros functions to select the default user or the user list (depending on usage). Adjust the tests to check the new 'default' field that signifies the default user + test the new method to extract just the default user from a normalized user dictionary.
152 lines
5.1 KiB
Python
152 lines
5.1 KiB
Python
# vi: ts=4 expandtab
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#
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# Copyright (C) 2009-2010 Canonical Ltd.
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# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
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#
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# Author: Scott Moser <scott.moser@canonical.com>
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# Author: Juerg Haefliger <juerg.haefliger@hp.com>
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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 General Public License version 3, as
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# published by the Free Software Foundation.
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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 General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys
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from cloudinit import distros as ds
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from cloudinit import ssh_util
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from cloudinit import util
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from string import letters, digits # pylint: disable=W0402
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# We are removing certain 'painful' letters/numbers
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PW_SET = (letters.translate(None, 'loLOI') +
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digits.translate(None, '01'))
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def handle(_name, cfg, cloud, log, args):
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if len(args) != 0:
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# if run from command line, and give args, wipe the chpasswd['list']
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password = args[0]
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if 'chpasswd' in cfg and 'list' in cfg['chpasswd']:
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del cfg['chpasswd']['list']
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else:
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password = util.get_cfg_option_str(cfg, "password", None)
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expire = True
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pw_auth = "no"
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change_pwauth = False
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plist = None
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if 'chpasswd' in cfg:
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chfg = cfg['chpasswd']
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plist = util.get_cfg_option_str(chfg, 'list', plist)
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expire = util.get_cfg_option_bool(chfg, 'expire', expire)
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if not plist and password:
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(users, _groups) = ds.normalize_users_groups(cfg, cloud.distro)
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(user, _user_config) = ds.extract_default(users)
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if user:
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plist = "%s:%s" % (user, password)
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else:
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log.warn("No default or defined user to change password for.")
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errors = []
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if plist:
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plist_in = []
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randlist = []
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users = []
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for line in plist.splitlines():
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u, p = line.split(':', 1)
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if p == "R" or p == "RANDOM":
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p = rand_user_password()
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randlist.append("%s:%s" % (u, p))
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plist_in.append("%s:%s" % (u, p))
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users.append(u)
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ch_in = '\n'.join(plist_in)
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try:
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log.debug("Changing password for %s:", users)
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util.subp(['chpasswd'], ch_in)
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except Exception as e:
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errors.append(e)
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util.logexc(log,
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"Failed to set passwords with chpasswd for %s", users)
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if len(randlist):
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blurb = ("Set the following 'random' passwords\n",
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'\n'.join(randlist))
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sys.stderr.write("%s\n%s\n" % blurb)
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if expire:
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expired_users = []
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for u in users:
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try:
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util.subp(['passwd', '--expire', u])
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expired_users.append(u)
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except Exception as e:
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errors.append(e)
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util.logexc(log, "Failed to set 'expire' for %s", u)
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if expired_users:
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log.debug("Expired passwords for: %s users", expired_users)
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change_pwauth = False
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pw_auth = None
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if 'ssh_pwauth' in cfg:
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change_pwauth = True
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if util.is_true(cfg['ssh_pwauth']):
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pw_auth = 'yes'
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if util.is_false(cfg['ssh_pwauth']):
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pw_auth = 'no'
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if change_pwauth:
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replaced_auth = False
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# See: man sshd_config
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conf_fn = cloud.paths.join(True, ssh_util.DEF_SSHD_CFG)
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old_lines = ssh_util.parse_ssh_config(conf_fn)
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new_lines = []
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i = 0
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for (i, line) in enumerate(old_lines):
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# Keywords are case-insensitive and arguments are case-sensitive
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if line.key == 'passwordauthentication':
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log.debug("Replacing auth line %s with %s", i + 1, pw_auth)
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replaced_auth = True
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line.value = pw_auth
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new_lines.append(line)
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if not replaced_auth:
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log.debug("Adding new auth line %s", i + 1)
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replaced_auth = True
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new_lines.append(ssh_util.SshdConfigLine('',
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'PasswordAuthentication',
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pw_auth))
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lines = [str(e) for e in new_lines]
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ssh_rw_fn = cloud.paths.join(False, ssh_util.DEF_SSHD_CFG)
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util.write_file(ssh_rw_fn, "\n".join(lines))
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try:
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cmd = ['service']
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cmd.append(cloud.distro.get_option('ssh_svcname', 'ssh'))
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cmd.append('restart')
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util.subp(cmd)
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log.debug("Restarted the ssh daemon")
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except:
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util.logexc(log, "Restarting of the ssh daemon failed")
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if len(errors):
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log.debug("%s errors occured, re-raising the last one", len(errors))
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raise errors[-1]
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def rand_user_password(pwlen=9):
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return util.rand_str(pwlen, select_from=PW_SET)
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