Class: Inspec::Resources::ApacheConf

Inherits:
Object
  • Object
show all
Includes:
FileReader, FindFiles
Defined in:
lib/inspec/resources/apache_conf.rb

Constant Summary

Constants included from FindFiles

FindFiles::TYPES

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from FileReader

#read_file_content

Methods included from FindFiles

#find_files, #find_files_or_warn

Constructor Details

#initialize(conf_path = nil) ⇒ ApacheConf

Returns a new instance of ApacheConf.



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# File 'lib/inspec/resources/apache_conf.rb', line 24

def initialize(conf_path = nil)
  @conf_path = conf_path || default_conf_path
  @files_contents = {}
  @content = nil
  @params = nil
  read_content
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name) ⇒ Object 



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# File 'lib/inspec/resources/apache_conf.rb', line 45

def method_missing(name)
  # ensure params are loaded
  @params || read_content

  # extract values
  @params[name.to_s] unless @params.nil?
end

Instance Attribute Details

#conf_path ⇒ Object (readonly)

Returns the value of attribute conf_path.



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# File 'lib/inspec/resources/apache_conf.rb', line 22

def conf_path
  @conf_path
end

Instance Method Details

#conf_dir ⇒ Object 



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# File 'lib/inspec/resources/apache_conf.rb', line 130

def conf_dir
  if inspec.os.debian?
    File.dirname(conf_path)
  else
    # On RHEL-based systems, the configuration is usually in a /conf directory
    # that contains the primary config file. We assume the "config path" is the
    # directory that contains the /conf directory, such as /etc/httpd, so that
    # the conf.d directory can be properly located.
    Pathname.new(File.dirname(conf_path)).parent.to_s
  end
end

#content ⇒ Object 



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# File 'lib/inspec/resources/apache_conf.rb', line 32

def content
  @content ||= read_content
end

#filter_comments(data) ⇒ Object 



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# File 'lib/inspec/resources/apache_conf.rb', line 53

def filter_comments(data)
  content = ""
  data.each_line do |line|
    unless line.match(/^\s*#/)
      content << line
    end
  end
  content
end

#include_files(params) ⇒ Object 



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# File 'lib/inspec/resources/apache_conf.rb', line 108

def include_files(params)
  # see if there is more config files to include
  include_files = params["Include"] || []
  include_files_optional = params["IncludeOptional"] || []

  includes = []
  (include_files + include_files_optional).each do |f|
    id    = Pathname.new(f).absolute? ? f : File.join(conf_dir, f)
    files = find_files(id, depth: 1, type: "file")
    files += find_files(id, depth: 1, type: "link")

    includes.push(files) if files
  end

  # [].flatten! == nil
  includes.flatten! || []
end

#params(*opts) ⇒ Object 



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# File 'lib/inspec/resources/apache_conf.rb', line 36

def params(*opts)
  @params || read_content
  res = @params
  opts.each do |opt|
    res = res[opt] unless res.nil?
  end
  res
end

#read_content ⇒ Object 



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# File 'lib/inspec/resources/apache_conf.rb', line 63

def read_content
  @content = ""
  @params = {}

  read_file_content(conf_path)

  to_read = [conf_path]
  until to_read.empty?
    raw_conf = read_file(to_read[0])
    @content += raw_conf

    # An explaination of the below regular expression.
    # Creates two capture groups.
    # The first group captures the first group of non-whitespace character
    # surrounded whitespace characters.
    # The second group contains a conditional with a positive lookahead
    # (does the line end with one or more spaces?). If the lookahead succeeds
    # a non-greedy capture takes place, if it fails then a greedy capture takes place.
    # The regex is terminated by an expression that matches zero or more spaces.
    params = SimpleConfig.new(
      raw_conf,
      assignment_regex: /^\s*(\S+)\s+['"]*((?=.*\s+$).*?|.*?)['"]*\s*$/,
      multiple_values: true
    ).params

    # Capture any characters between quotes that are not escaped in values
    params.values.map! do |value|
      value.map! do |sub_value|
        sub_value[/(?<=["|'])(?:\\.|[^"'\\])*(?=["|'])/] || sub_value
      end
    end

    @params.merge!(params)

    to_read = to_read.drop(1)
    to_read += include_files(params).find_all do |fp|
      not @files_contents.key? fp
    end
  end

  # fiter comments
  @content = filter_comments @content
  @content
end

#read_file(path) ⇒ Object 



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# File 'lib/inspec/resources/apache_conf.rb', line 126

def read_file(path)
  @files_contents[path] ||= read_file_content(path, true)
end

#to_s ⇒ Object 



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# File 'lib/inspec/resources/apache_conf.rb', line 142

def to_s
  "Apache Config #{conf_path}"
end