diaspora/app/models/retraction.rb

82 lines
1.9 KiB
Ruby

class Retraction
include ROXML
include Diaspora::Webhooks
include Encryptable
def self.for(object)
retraction = self.new
if object.is_a? User
retraction.post_id = object.person.id
retraction.type = object.person.class.to_s
else
retraction.post_id= object.id
retraction.type = object.class.to_s
end
retraction.person_id = person_id_from(object)
retraction
end
xml_accessor :post_id
xml_accessor :person_id
xml_accessor :type
attr_accessor :post_id
attr_accessor :person_id
attr_accessor :type
def perform
begin
return unless signature_valid?
Rails.logger.debug("Retracting #{self.type} id: #{self.post_id}")
self.type.constantize.destroy(self.post_id)
rescue NameError
Rails.logger.info("Retraction for unknown type recieved.")
end
end
def signature_valid?
target = self.type.constantize.first(:id => self.post_id)
if target.is_a? Person
verify_signature(@creator_signature, self.type.constantize.first(:id => self.post_id))
else
verify_signature(@creator_signature, self.type.constantize.first(:id => self.post_id).person)
end
end
def self.person_id_from(object)
if object.is_a? Person
object.id
else
object.person.id
end
end
def person
Person.first(:id => self.person_id)
end
#ENCRYPTION
xml_reader :creator_signature
def creator_signature
@creator_signature ||= sign if person_id == User.owner.id
end
def creator_signature= input
@creator_signature = input
end
def signable_accessors
accessors = self.class.roxml_attrs.collect{|definition|
definition.accessor}
accessors.delete 'person'
accessors.delete 'creator_signature'
accessors
end
def signable_string
signable_accessors.collect{|accessor|
(self.send accessor.to_sym).to_s}.join ';'
end
end