Class: Rack::Client::Auth::Digest::MD5

Inherits:
Auth::Digest::MD5
  • Object
show all
Includes:
DualBand
Defined in:
lib/rack/client/middleware/auth/digest/md5.rb

Instance Method Summary collapse

Methods included from DualBand

#call

Constructor Details

#initialize(app, realm, username, password, options = {}) ⇒ MD5

Returns a new instance of MD5.



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# File 'lib/rack/client/middleware/auth/digest/md5.rb', line 8

def initialize(app, realm, username, password, options = {})
  @app, @realm, @username, @password = app, realm, username, password
  @nc = 0
end

Instance Method Details

#async_call(env) ⇒ Object 



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# File 'lib/rack/client/middleware/auth/digest/md5.rb', line 25

def async_call(env)
  @app.call(env) do |response_parts|
    request   = Rack::Request.new(env)
    response  = Response.new(*response_parts)
    challenge = Digest::Challenge.new(request, response, @realm, @username, @password)

    if challenge.required? && challenge.digest? && valid?(challenge)
      @app.call(env.merge(authorization(challenge))) {|response_parts| yield response_parts }
    else
      @app.call(env) {|response_parts| yield response_parts }
    end
  end
end

#authorization(challenge) ⇒ Object 



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# File 'lib/rack/client/middleware/auth/digest/md5.rb', line 51

def authorization(challenge)
  return 'HTTP_AUTHORIZATION' => "Digest #{params_for(challenge)}"
end

#next_nc ⇒ Object 



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# File 'lib/rack/client/middleware/auth/digest/md5.rb', line 71

def next_nc
  sprintf("%08x", @nc += 1)
end

#params_for(challenge) ⇒ Object 



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# File 'lib/rack/client/middleware/auth/digest/md5.rb', line 55

def params_for(challenge)
  nc = next_nc

  Rack::Auth::Digest::Params.new do |params|
    params['username']  = @username
    params['realm']     = @realm
    params['nonce']     = challenge.nonce.to_s
    params['uri']       = challenge.path
    params['qop']       = challenge.qop
    params['nc']        = nc
    params['cnonce']    = challenge.cnonce
    params['response']  = challenge.response(nc)
    params['opaque']    = challenge.opaque
  end
end

#sync_call(env) ⇒ Object 



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# File 'lib/rack/client/middleware/auth/digest/md5.rb', line 13

def sync_call(env)
  request   = Rack::Request.new(env)
  response  = Response.new(*@app.call(env))
  challenge = Digest::Challenge.new(request, response, @realm, @username, @password)

  if challenge.required? && challenge.digest? && valid?(challenge)
    return @app.call(env.merge(authorization(challenge)))
  end

  response.finish
end

#valid?(challenge) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack/client/middleware/auth/digest/md5.rb', line 39

def valid?(challenge)
  valid_opaque?(challenge) && valid_nonce?(challenge)
end

#valid_nonce?(challenge) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack/client/middleware/auth/digest/md5.rb', line 47

def valid_nonce?(challenge)
  challenge.nonce.valid?
end

#valid_opaque?(challenge) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack/client/middleware/auth/digest/md5.rb', line 43

def valid_opaque?(challenge)
  !(challenge.opaque.nil? || challenge.opaque.empty?)
end