inspec/lib/resources/postgres_conf.rb
eramoto c7e87ca3e3 Unify method in which file content is read across all resources (#2359)
* Create file-check functionality into utility file

There are the similar issues as PR #2302. Almost resources return false
positives when a file does not exist or is not read.

* Replace to file-check functionality
* Fix dh_params and x509_certificate resources

If a file is empty, OpenSSL::PKey::DH and OpenSSL::X509::Certificate have
raised an exception and have skipped the inspection. Thus x509_certificate
and dh_params resources are not allowed to read a empty file.

* to_s of shadow expects filters is not nil
* Remove workaround of sshd_config

Removes the workaround of sshd_config since Travis CI fails due to a bug
of dev-sec/ssh-baseline and the PR #100 will fix it.

* Use init block variable in methods

Signed-off-by: ERAMOTO Masaya <eramoto.masaya@jp.fujitsu.com>
2018-03-22 08:25:45 -04:00

114 lines
2.9 KiB
Ruby

# encoding: utf-8
# copyright: 2015, Vulcano Security GmbH
require 'utils/simpleconfig'
require 'utils/find_files'
require 'utils/file_reader'
require 'resources/postgres'
module Inspec::Resources
class PostgresConf < Inspec.resource(1)
name 'postgres_conf'
supports platform: 'unix'
supports platform: 'windows'
desc 'Use the postgres_conf InSpec audit resource to test the contents of the configuration file for PostgreSQL, typically located at /etc/postgresql/<version>/main/postgresql.conf or /var/lib/postgres/data/postgresql.conf, depending on the platform.'
example "
describe postgres_conf do
its('max_connections') { should eq '5' }
end
"
include FindFiles
include FileReader
include ObjectTraverser
def initialize(conf_path = nil)
@conf_path = conf_path || inspec.postgres.conf_path
if @conf_path.nil?
return skip_resource 'PostgreSQL conf path is not set'
end
@conf_dir = File.expand_path(File.dirname(@conf_path))
@files_contents = {}
@content = nil
@params = nil
read_content
end
def content
@content ||= read_content
end
def params(*opts)
@params || read_content
res = @params
opts.each do |opt|
res = res[opt] unless res.nil?
end
res
end
def value(key)
extract_value(key, @params)
end
def method_missing(*keys)
keys.shift if keys.is_a?(Array) && keys[0] == :[]
param = value(keys)
return nil if param.nil?
# extract first value if we have only one value in array
return param[0] if param.length == 1
param
end
def to_s
'PostgreSQL Configuration'
end
private
def read_content
@content = ''
@params = {}
to_read = [@conf_path]
until to_read.empty?
base_dir = File.dirname(to_read[0])
raw_conf = read_file(to_read[0])
@content += raw_conf
opts = {
assignment_regex: /^\s*([^=]*?)\s*=\s*[']?\s*(.*?)\s*[']?\s*$/,
}
params = SimpleConfig.new(raw_conf, opts).params
@params.merge!(params)
to_read = to_read.drop(1)
# see if there is more config files to include
to_read += include_files(params, base_dir).find_all do |fp|
not @files_contents.key? fp
end
end
@content
end
def include_files(params, base_dir)
include_files = Array(params['include']) || []
include_files += Array(params['include_if_exists']) || []
include_files.map! do |f|
Pathname.new(f).absolute? ? f : File.join(base_dir, f)
end
dirs = Array(params['include_dir']) || []
dirs.each do |dir|
dir = File.join(base_dir, dir) if dir[0] != '/'
include_files += find_files(dir, depth: 1, type: 'file')
end
include_files
end
def read_file(path)
@files_contents[path] ||= read_file_content(path)
end
end
end