Class: HTAuth::Digest

Inherits:
Object
  • Object
show all
Defined in:
lib/htauth/digest.rb

Constant Summary collapse

MAX_PASSWD_LENGTH = 
255

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Digest

Returns a new instance of Digest.



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# File 'lib/htauth/digest.rb', line 17

def initialize
  @digest_file = nil
  @option_parser = nil
  @options = nil
end

Instance Attribute Details

#digest_file ⇒ Object

Returns the value of attribute digest_file.



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# File 'lib/htauth/digest.rb', line 15

def digest_file
  @digest_file
end

Instance Method Details

#option_parser ⇒ Object 



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# File 'lib/htauth/digest.rb', line 37

def option_parser
  if not @option_parser then
    @option_parser = OptionParser.new do |op|
      op.banner = "Usage: #{op.program_name} [options] passwordfile realm username"
      op.on("-c", "--create", "Create a new digest password file; this overwrites an existing file.") do |c|
        options.file_mode = DigestFile::CREATE
      end

      op.on("-D", "--delete", "Delete the specified user.") do |d|
        options.delete_entry = d
      end

      op.on("-h", "--help", "Display this help.") do |h|
        options.show_help = h
      end

      op.on("-v", "--version", "Show version info.") do |v|
        options.show_version = v
      end
    end
  end
  @option_parser
end

#options ⇒ Object 



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# File 'lib/htauth/digest.rb', line 23

def options
  if @options.nil? then
    @options                = ::OpenStruct.new
    @options.show_version   = false
    @options.show_help      = false
    @options.file_mode      = DigestFile::ALTER
    @options.passwdfile     = nil
    @options.realm          = nil
    @options.username       = nil
    @options.delete_entry   = false
  end
  @options
end

#parse_options(argv) ⇒ Object 



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# File 'lib/htauth/digest.rb', line 71

def parse_options(argv)
  begin
    option_parser.parse!(argv)
    show_version if options.show_version
    show_help if options.show_help or argv.size < 3

    options.passwdfile = argv.shift
    options.realm      = argv.shift
    options.username   = argv.shift
  rescue ::OptionParser::ParseError => pe
    $stderr.puts "ERROR: #{option_parser.program_name} - #{pe}"
    $stderr.puts "Try `#{option_parser.program_name} --help` for more information"
    exit 1
  end
end

#run(argv, env = ENV) ⇒ Object 



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# File 'lib/htauth/digest.rb', line 87

def run(argv, env = ENV)
  begin
    parse_options(argv)
    digest_file = DigestFile.new(options.passwdfile, options.file_mode)

    if options.delete_entry then
      digest_file.delete(options.username, options.realm)
    else
      # initialize here so that if $stdin is overwritten it gets picked up
      hl = ::HighLine.new

      action = digest_file.has_entry?(options.username, options.realm) ? "Changing" : "Adding"

      $stdout.puts "#{action} password for #{options.username} in realm #{options.realm}."

      pw_in       = hl.ask("        New password: ") { |q| q.echo = '*' } 
      raise PasswordError, "password '#{pw_in}' too long" if pw_in.length >= MAX_PASSWD_LENGTH

      pw_validate = hl.ask("Re-type new password: ") { |q| q.echo = '*' }
      raise PasswordError, "They don't match, sorry." unless pw_in == pw_validate

      digest_file.add_or_update(options.username, options.realm, pw_in)
    end

    digest_file.save!

  rescue HTAuth::FileAccessError => fae
    msg = "Could not open password file #{options.passwdfile} "
    $stderr.puts "#{msg}: #{fae.message}"
    $stderr.puts fae.backtrace.join("\n")
    exit 1
  rescue HTAuth::PasswordError => pe
    $stderr.puts "#{pe.message}"
    exit 1
  rescue HTAuth::DigestFileError => fe
    $stderr.puts "#{fe.message}"
    exit 1
  rescue SignalException => se
    $stderr.puts
    $stderr.puts "Interrupted #{se}"
    exit 1
  end
  exit 0
end

#show_help ⇒ Object 



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# File 'lib/htauth/digest.rb', line 61

def show_help
  $stdout.puts option_parser
  exit 1
end

#show_version ⇒ Object 



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# File 'lib/htauth/digest.rb', line 66

def show_version
  $stdout.puts "#{option_parser.program_name}: version #{HTAuth::VERSION}"
  exit 1
end