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https://github.com/inspec/inspec
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135 lines
3.5 KiB
Ruby
135 lines
3.5 KiB
Ruby
# encoding: utf-8
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# copyright: 2016, Chef Software Inc.
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# author: Dominik Richter
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# author: Christoph Hartmann
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require 'forwardable'
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# The file format consists of
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# - user
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# - password
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# - last_change
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# - min_days before password change
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# - max_days until password change
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# - warn_days before warning about expiry
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# - inactive_days before deactivating the account
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# - expiry_date when this account will expire
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class Shadow < Inspec.resource(1)
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name 'shadow'
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desc 'Use the shadow InSpec resource to test the contents of /etc/shadow, '\
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'which contains the following information for users that may log into '\
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'the system and/or as users that own running processes.'
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example "
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describe shadow do
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its('users') { should_not include 'forbidden_user' }
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end
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describe shadow.users('bin') do
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its('password') { should cmp 'x' }
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its('count') { should eq 1 }
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end
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"
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extend Forwardable
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attr_reader :params
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attr_reader :content
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attr_reader :lines
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def initialize(path = '/etc/shadow', opts = nil)
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opts ||= {}
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@path = path || '/etc/shadow'
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@content = opts[:content] || inspec.file(@path).content
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@lines = @content.to_s.split("\n")
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@filters = opts[:filters] || ''
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@params = @lines.map { |l| parse_shadow_line(l) }
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end
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def filter(hm = {})
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return self if hm.nil? || hm.empty?
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res = @params
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filters = ''
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hm.each do |attr, condition|
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condition = condition.to_s if condition.is_a? Integer
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filters += " #{attr} = #{condition.inspect}"
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res = res.find_all do |line|
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case line[attr.to_s]
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when condition
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true
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else
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false
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end
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end
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end
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content = res.map { |x| x.values.join(':') }.join("\n")
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Shadow.new(@path, content: content, filters: @filters + filters)
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end
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def entries
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@lines.map { |line| Shadow.new(@path, content: line, filters: @filters) }
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end
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def users(name = nil)
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name.nil? ? map_data('user') : filter(user: name)
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end
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def passwords(password = nil)
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password.nil? ? map_data('password') : filter(password: password)
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end
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def last_changes(filter_by = nil)
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filter_by.nil? ? map_data('last_change') : filter(last_change: filter_by)
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end
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def min_days(filter_by = nil)
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filter_by.nil? ? map_data('min_days') : filter(min_days: filter_by)
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end
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def max_days(filter_by = nil)
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filter_by.nil? ? map_data('max_days') : filter(max_days: filter_by)
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end
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def warn_days(filter_by = nil)
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filter_by.nil? ? map_data('warn_days') : filter(warn_days: filter_by)
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end
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def inactive_days(filter_by = nil)
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filter_by.nil? ? map_data('inactive_days') : filter(inactive_days: filter_by)
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end
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def expiry_dates(filter_by = nil)
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filter_by.nil? ? map_data('expiry_date') : filter(expiry_date: filter_by)
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end
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def to_s
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f = @filters.empty? ? '' : ' with'+@filters
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"/etc/shadow#{f}"
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end
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def_delegator :@params, :length, :count
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private
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def map_data(id)
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@params.map { |x| x[id] }
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end
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# Parse a line of /etc/shadow
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#
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# @param [String] line a line of /etc/shadow
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# @return [Hash] Map of entries in this line
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def parse_shadow_line(line)
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x = line.split(':')
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{
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'user' => x.at(0),
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'password' => x.at(1),
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'last_change' => x.at(2),
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'min_days' => x.at(3),
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'max_days' => x.at(4),
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'warn_days' => x.at(5),
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'inactive_days' => x.at(6),
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'expiry_date' => x.at(7),
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'reserved' => x.at(8),
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}
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end
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end
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