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module ActionController
class Base < Metal
abstract!
include AbstractController::Callbacks
include AbstractController::Logger
include ActionController::Helpers
include ActionController::HideActions
include ActionController::UrlFor
include ActionController::Redirector
include ActionController::RenderingController
include ActionController::RenderOptions::All
include ActionController::Layouts
include ActionController::ConditionalGet
include ActionController::RackConvenience
include ActionController::Benchmarking
include ActionController::Configuration
# Legacy modules
include SessionManagement
include ActionDispatch::StatusCodes
include ActionController::Caching
include ActionController::MimeResponds
# Rails 2.x compatibility
include ActionController::Rails2Compatibility
include ActionController::Cookies
include ActionController::Session
include ActionController::Flash
include ActionController::Verification
include ActionController::RequestForgeryProtection
include ActionController::Streaming
include ActionController::HttpAuthentication::Basic::ControllerMethods
include ActionController::HttpAuthentication::Digest::ControllerMethods
include ActionController::FilterParameterLogging
include ActionController::Translation
# TODO: Extract into its own module
# This should be moved together with other normalizing behavior
module ImplicitRender
def send_action(*)
ret = super
default_render unless response_body
ret
end
def default_render
render
end
def method_for_action(action_name)
super || begin
if template_exists?(action_name.to_s, {:formats => formats}, :_prefix => controller_path)
"default_render"
end
end
end
end
include ImplicitRender
include ActionController::Rescue
def self.inherited(klass)
::ActionController::Base.subclasses << klass.to_s
super
end
def self.subclasses
@subclasses ||= []
end
def _normalize_options(action = nil, options = {}, &blk)
if action.is_a?(Hash)
options, action = action, nil
elsif action.is_a?(String) || action.is_a?(Symbol)
key = case action = action.to_s
when %r{^/} then :file
when %r{/} then :template
else :action
end
options.merge! key => action
elsif action
options.merge! :partial => action
end
if options.key?(:action) && options[:action].to_s.index("/")
options[:template] = options.delete(:action)
end
if options[:status]
options[:status] = interpret_status(options[:status]).to_i
end
options[:update] = blk if block_given?
options
end
def render(action = nil, options = {}, &blk)
options = _normalize_options(action, options, &blk)
super(options)
end
def render_to_string(action = nil, options = {}, &blk)
options = _normalize_options(action, options, &blk)
super(options)
end
# Redirects the browser to the target specified in +options+. This parameter can take one of three forms:
#
# * <tt>Hash</tt> - The URL will be generated by calling url_for with the +options+.
# * <tt>Record</tt> - The URL will be generated by calling url_for with the +options+, which will reference a named URL for that record.
# * <tt>String</tt> starting with <tt>protocol://</tt> (like <tt>http://</tt>) - Is passed straight through as the target for redirection.
# * <tt>String</tt> not containing a protocol - The current protocol and host is prepended to the string.
# * <tt>:back</tt> - Back to the page that issued the request. Useful for forms that are triggered from multiple places.
# Short-hand for <tt>redirect_to(request.env["HTTP_REFERER"])</tt>
#
# Examples:
# redirect_to :action => "show", :id => 5
# redirect_to post
# redirect_to "http://www.rubyonrails.org"
# redirect_to "/images/screenshot.jpg"
# redirect_to articles_url
# redirect_to :back
#
# The redirection happens as a "302 Moved" header unless otherwise specified.
#
# Examples:
# redirect_to post_url(@post), :status=>:found
# redirect_to :action=>'atom', :status=>:moved_permanently
# redirect_to post_url(@post), :status=>301
# redirect_to :action=>'atom', :status=>302
#
# When using <tt>redirect_to :back</tt>, if there is no referrer,
# RedirectBackError will be raised. You may specify some fallback
# behavior for this case by rescuing RedirectBackError.
def redirect_to(options = {}, response_status = {}) #:doc:
raise ActionControllerError.new("Cannot redirect to nil!") if options.nil?
status = if options.is_a?(Hash) && options.key?(:status)
interpret_status(options.delete(:status))
elsif response_status.key?(:status)
interpret_status(response_status[:status])
else
302
end
url = case options
# The scheme name consist of a letter followed by any combination of
# letters, digits, and the plus ("+"), period ("."), or hyphen ("-")
# characters; and is terminated by a colon (":").
when %r{^\w[\w\d+.-]*:.*}
options
when String
request.protocol + request.host_with_port + options
when :back
raise RedirectBackError unless refer = request.headers["Referer"]
refer
else
url_for(options)
end
super(url, status)
end
end
end
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