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discovery_manager.rb
123 lines | 2.6 KiB | text/x-ruby | RubyLexer
/ vendor / gems / ruby-openid-2.1.4 / lib / openid / consumer / discovery_manager.rb
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Eric Davis
Unpacked OpenID gem. #699...
 r2376 module OpenID
class Consumer
# A set of discovered services, for tracking which providers have
# been attempted for an OpenID identifier
class DiscoveredServices
attr_reader :current
def initialize(starting_url, yadis_url, services)
@starting_url = starting_url
@yadis_url = yadis_url
@services = services.dup
@current = nil
end
def next
@current = @services.shift
end
def for_url?(url)
[@starting_url, @yadis_url].member?(url)
end
def started?
!@current.nil?
end
def empty?
@services.empty?
end
end
# Manages calling discovery and tracking which endpoints have
# already been attempted.
class DiscoveryManager
def initialize(session, url, session_key_suffix=nil)
@url = url
@session = session
@session_key_suffix = session_key_suffix || 'auth'
end
def get_next_service
manager = get_manager
if !manager.nil? && manager.empty?
destroy_manager
manager = nil
end
if manager.nil?
yadis_url, services = yield @url
manager = create_manager(yadis_url, services)
end
if !manager.nil?
service = manager.next
store(manager)
else
service = nil
end
return service
end
def cleanup(force=false)
manager = get_manager(force)
if !manager.nil?
service = manager.current
destroy_manager(force)
else
service = nil
end
return service
end
protected
def get_manager(force=false)
manager = load
if force || manager.nil? || manager.for_url?(@url)
return manager
else
return nil
end
end
def create_manager(yadis_url, services)
manager = get_manager
if !manager.nil?
raise StandardError, "There is already a manager for #{yadis_url}"
end
if services.empty?
return nil
end
manager = DiscoveredServices.new(@url, yadis_url, services)
store(manager)
return manager
end
def destroy_manager(force=false)
if !get_manager(force).nil?
destroy!
end
end
def session_key
'OpenID::Consumer::DiscoveredServices::' + @session_key_suffix
end
def store(manager)
@session[session_key] = manager
end
def load
@session[session_key]
end
def destroy!
@session[session_key] = nil
end
end
end
end