Rack::Auth::Digest::MD5 implements the MD5 algorithm version of HTTP Digest Authentication, as per RFC 2617.

Initialize with the [Rack] application that you want protecting, and a block that looks up a plaintext password for a given username.

opaque needs to be set to a constant base64/hexadecimal string.

Methods
C
N
P
Constants
QOP = 'auth'.freeze
 
Attributes
[RW] opaque
[W] passwords_hashed
Class Public methods
new(app, realm=nil, opaque=nil, &authenticator)
# File lib/rack/auth/digest/md5.rb, line 24
def initialize(app, realm=nil, opaque=nil, &authenticator)
  @passwords_hashed = nil
  if opaque.nil? and realm.respond_to? :values_at
    realm, opaque, @passwords_hashed = realm.values_at :realm, :opaque, :passwords_hashed
  end
  super(app, realm, &authenticator)
  @opaque = opaque
end
Instance Public methods
call(env)
# File lib/rack/auth/digest/md5.rb, line 37
def call(env)
  auth = Request.new(env)

  unless auth.provided?
    return unauthorized
  end

  if !auth.digest? || !auth.correct_uri? || !valid_qop?(auth)
    return bad_request
  end

  if valid?(auth)
    if auth.nonce.stale?
      return unauthorized(challenge(:stale => true))
    else
      env['REMOTE_USER'] = auth.username

      return @app.call(env)
    end
  end

  unauthorized
end
passwords_hashed?()
# File lib/rack/auth/digest/md5.rb, line 33
def passwords_hashed?
  !!@passwords_hashed
end