Module: DeviseTokenAuth::Concerns::SetUserByToken

Extended by:
ActiveSupport::Concern
Includes:
DeviseTokenAuth::Controllers::Helpers
Included in:
ApplicationController
Defined in:
app/controllers/devise_token_auth/concerns/set_user_by_token.rb

Instance Method Summary collapse

Methods included from DeviseTokenAuth::Controllers::Helpers

define_helpers

Instance Method Details

#resource_class(m = nil) ⇒ Object 



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# File 'app/controllers/devise_token_auth/concerns/set_user_by_token.rb', line 71

def resource_class(m=nil)
  if m
    mapping = Devise.mappings[m]
  else
    mapping = Devise.mappings[resource_name] || Devise.mappings.values.first
  end

  mapping.to
end

#set_user_by_token(mapping = nil) ⇒ Object

user auth



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# File 'app/controllers/devise_token_auth/concerns/set_user_by_token.rb', line 10

def set_user_by_token(mapping=nil)
  # determine target authentication class
  rc = resource_class(mapping)

  # no default user defined
  return unless rc

  # user has already been found and authenticated
  return @user if @user and @user.class == rc

  # parse header for values necessary for authentication
  uid        = request.headers['uid']
  @token     = request.headers['access-token']
  @client_id = request.headers['client']

  return false unless @token

  # client_id isn't required, set to 'default' if absent
  @client_id ||= 'default'

  # mitigate timing attacks by finding by uid instead of auth token
  user = uid && rc.find_by_uid(uid)

  if user && user.valid_token?(@token, @client_id)
    (:user, user, store: false, bypass: true)

    # check this now so that the duration of the request itself doesn't eat
    # away the buffer
    @is_batch_request = is_batch_request?(user, @client_id)

    return @user = user
  else
    # zero all values previously set values
    return @user = @is_batch_request = nil
  end
end

#update_auth_header ⇒ Object 



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# File 'app/controllers/devise_token_auth/concerns/set_user_by_token.rb', line 48

def update_auth_header
  # cannot save object if model has invalid params
  return unless @user and @user.valid? and @client_id

  auth_header = {}

  if not DeviseTokenAuth.change_headers_on_each_request
    auth_header = @user.build_auth_header(@token, @client_id)
    response.headers.merge!(auth_header)

  # extend expiration of batch buffer to account for the duration of
  # this request
  elsif @is_batch_request
    @user.extend_batch_buffer(@token, @client_id)

  # update Authorization response header with new token
  else
    auth_header = @user.create_new_auth_token(@client_id)
    response.headers.merge!(auth_header)
  end
end