module Devise::Controllers::SignInOut

Provide sign in and sign out functionality. Included by default in all controllers.

Public Instance Methods

bypass_sign_in(resource, scope: nil) click to toggle source

Sign in a user bypassing the warden callbacks and stores the user straight in session. This option is useful in cases the user is already signed in, but we want to refresh the credentials in session.

Examples:

bypass_sign_in @user, scope: :user
bypass_sign_in @user
# File lib/devise/controllers/sign_in_out.rb, line 61
def bypass_sign_in(resource, scope: nil)
  scope ||= Devise::Mapping.find_scope!(resource)
  expire_data_after_sign_in!
  warden.session_serializer.store(resource, scope)
end
sign_in(resource_or_scope, *args) click to toggle source

Sign in a user that already was authenticated. This helper is useful for logging users in after sign up. All options given to #sign_in is passed forward to the set_user method in warden.

Examples:

sign_in :user, @user                      # sign_in(scope, resource)
sign_in @user                             # sign_in(resource)
sign_in @user, event: :authentication     # sign_in(resource, options)
sign_in @user, store: false               # sign_in(resource, options)
# File lib/devise/controllers/sign_in_out.rb, line 29
      def sign_in(resource_or_scope, *args)
        options  = args.extract_options!
        scope    = Devise::Mapping.find_scope!(resource_or_scope)
        resource = args.last || resource_or_scope

        expire_data_after_sign_in!

        if options[:bypass]
          ActiveSupport::Deprecation.warn("          [Devise] bypass option is deprecated and it will be removed in future version of Devise.
          Please use bypass_sign_in method instead.
          Example:

            bypass_sign_in(user)
".strip_heredoc, caller)
          warden.session_serializer.store(resource, scope)
        elsif warden.user(scope) == resource && !options.delete(:force)
          # Do nothing. User already signed in and we are not forcing it.
          true
        else
          warden.set_user(resource, options.merge!(scope: scope))
        end
      end
sign_out(resource_or_scope=nil) click to toggle source

Sign out a given user or scope. This helper is useful for signing out a user after deleting accounts. Returns true if there was a logout and false if there is no user logged in on the referred scope

Examples:

sign_out :user     # sign_out(scope)
sign_out @user     # sign_out(resource)
# File lib/devise/controllers/sign_in_out.rb, line 76
def sign_out(resource_or_scope=nil)
  return sign_out_all_scopes unless resource_or_scope
  scope = Devise::Mapping.find_scope!(resource_or_scope)
  user = warden.user(scope: scope, run_callbacks: false) # If there is no user

  warden.logout(scope)
  warden.clear_strategies_cache!(scope: scope)
  instance_variable_set(:"@current_#{scope}", nil)

  !!user
end
sign_out_all_scopes(lock=true) click to toggle source

Sign out all active users or scopes. This helper is useful for signing out all roles in one click. This signs out ALL scopes in warden. Returns true if there was at least one logout and false if there was no user logged in on all scopes.

# File lib/devise/controllers/sign_in_out.rb, line 91
def sign_out_all_scopes(lock=true)
  users = Devise.mappings.keys.map { |s| warden.user(scope: s, run_callbacks: false) }

  warden.logout
  expire_data_after_sign_out!
  warden.clear_strategies_cache!
  warden.lock! if lock

  users.any?
end
signed_in?(scope=nil) click to toggle source

Return true if the given scope is signed in session. If no scope given, return true if any scope is signed in. This will run authentication hooks, which may cause exceptions to be thrown from this method; if you simply want to check if a scope has already previously been authenticated without running authentication hooks, you can directly call `warden.authenticated?(scope: scope)`

# File lib/devise/controllers/sign_in_out.rb, line 12
def signed_in?(scope=nil)
  [scope || Devise.mappings.keys].flatten.any? do |_scope|
    warden.authenticate?(scope: _scope)
  end
end

Private Instance Methods

expire_data_after_sign_in!() click to toggle source
# File lib/devise/controllers/sign_in_out.rb, line 104
def expire_data_after_sign_in!
  # session.keys will return an empty array if the session is not yet loaded.
  # This is a bug in both Rack and Rails.
  # A call to #empty? forces the session to be loaded.
  session.empty?
  session.keys.grep(/^devise\./).each { |k| session.delete(k) }
end
Also aliased as: expire_data_after_sign_out!
expire_data_after_sign_out!()