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#
# Author:: Adam Jacob (<adam@chef.io>)
# Copyright:: Copyright 2008-2018, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require_relative "../provider"
require "etc" unless defined?(Etc)
class Chef
class Provider
class User < Chef::Provider
attr_accessor :user_exists, :locked
def initialize(new_resource, run_context)
super
@user_exists = true
@locked = nil
@shadow_lib_ok = true
@group_name_resolved = true
end
def convert_group_name
if new_resource.gid.is_a? String
new_resource.gid(Etc.getgrnam(new_resource.gid).gid)
end
rescue ArgumentError
@group_name_resolved = false
end
def load_current_resource
@current_resource = Chef::Resource::User.new(new_resource.name)
current_resource.username(new_resource.username)
begin
user_info = Etc.getpwnam(new_resource.username)
rescue ArgumentError
@user_exists = false
logger.trace("#{new_resource} user does not exist")
user_info = nil
end
if user_info
current_resource.uid(user_info.uid)
current_resource.gid(user_info.gid)
current_resource.home(user_info.dir)
current_resource.shell(user_info.shell)
current_resource.password(user_info.passwd)
if new_resource.comment
user_info.gecos.force_encoding(new_resource.comment.encoding)
end
current_resource.comment(user_info.gecos)
if new_resource.password && current_resource.password == "x"
begin
require "shadow"
rescue LoadError
@shadow_lib_ok = false
else
shadow_info = Shadow::Passwd.getspnam(new_resource.username)
current_resource.password(shadow_info.sp_pwdp)
end
end
convert_group_name if new_resource.gid
end
current_resource
end
def define_resource_requirements
requirements.assert(:create, :modify, :manage, :lock, :unlock) do |a|
a.assertion { @group_name_resolved }
a.failure_message Chef::Exceptions::User, "Couldn't lookup integer GID for group name #{new_resource.gid}"
a.whyrun "group name #{new_resource.gid} does not exist. This will cause group assignment to fail. Assuming this group will have been created previously."
end
requirements.assert(:all_actions) do |a|
a.assertion { @shadow_lib_ok }
a.failure_message Chef::Exceptions::MissingLibrary, "You must have ruby-shadow installed for password support!"
a.whyrun "ruby-shadow is not installed. Attempts to set user password will cause failure. Assuming that this gem will have been previously installed." \
"Note that user update converge may report false-positive on the basis of mismatched password. "
end
requirements.assert(:modify, :lock, :unlock) do |a|
a.assertion { @user_exists }
a.failure_message(Chef::Exceptions::User, "Cannot modify user #{new_resource.username} - does not exist!")
a.whyrun("Assuming user #{new_resource.username} would have been created")
end
end
# Check to see if the user needs any changes
#
# === Returns
# <true>:: If a change is required
# <false>:: If the users are identical
def compare_user
return true if !new_resource.home.nil? && Pathname.new(new_resource.home).cleanpath != Pathname.new(current_resource.home).cleanpath
[ :comment, :shell, :password, :uid, :gid ].each do |user_attrib|
return true if !new_resource.send(user_attrib).nil? && new_resource.send(user_attrib).to_s != current_resource.send(user_attrib).to_s
end
false
end
def action_create
if !@user_exists
converge_by("create user #{new_resource.username}") do
create_user
logger.info("#{new_resource} created")
end
elsif compare_user
converge_by("alter user #{new_resource.username}") do
manage_user
logger.info("#{new_resource} altered")
end
end
end
def action_remove
return unless @user_exists
converge_by("remove user #{new_resource.username}") do
remove_user
logger.info("#{new_resource} removed")
end
end
def action_manage
return unless @user_exists && compare_user
converge_by("manage user #{new_resource.username}") do
manage_user
logger.info("#{new_resource} managed")
end
end
def action_modify
return unless compare_user
converge_by("modify user #{new_resource.username}") do
manage_user
logger.info("#{new_resource} modified")
end
end
def action_lock
if check_lock == false
converge_by("lock the user #{new_resource.username}") do
lock_user
logger.info("#{new_resource} locked")
end
else
logger.trace("#{new_resource} already locked - nothing to do")
end
end
def action_unlock
if check_lock == true
converge_by("unlock user #{new_resource.username}") do
unlock_user
logger.info("#{new_resource} unlocked")
end
else
logger.trace("#{new_resource} already unlocked - nothing to do")
end
end
def create_user
raise NotImplementedError
end
def remove_user
raise NotImplementedError
end
def manage_user
raise NotImplementedError
end
def lock_user
raise NotImplementedError
end
def unlock_user
raise NotImplementedError
end
def check_lock
raise NotImplementedError
end
private
#
# helpers for subclasses
#
def should_set?(sym)
current_resource.send(sym).to_s != new_resource.send(sym).to_s && new_resource.send(sym)
end
def updating_home?
return false if new_resource.home.nil?
return true if current_resource.home.nil?
# Pathname#cleanpath matches more edge conditions than File.expand_path()
new_resource.home && Pathname.new(current_resource.home).cleanpath != Pathname.new(new_resource.home).cleanpath
end
end
end
end
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