102 lines
2.2 KiB
Ruby
102 lines
2.2 KiB
Ruby
class Post
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require 'lib/common'
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include ApplicationHelper
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include MongoMapper::Document
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include ROXML
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include Diaspora::Webhooks
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xml_accessor :_id
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xml_accessor :owner_signature
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xml_accessor :person, :as => Person
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key :person_id, ObjectId
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many :comments, :class_name => 'Comment', :foreign_key => :post_id
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belongs_to :person, :class_name => 'Person'
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cattr_reader :per_page
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@@per_page = 10
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timestamps!
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after_save :send_to_view
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after_save :notify_people
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before_destroy :propagate_retraction
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after_destroy :destroy_comments, :remove_from_view
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def self.stream
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Post.sort(:created_at.desc).all
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end
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def self.newest(person = nil)
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return self.last if person.nil?
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self.first(:person_id => person.id, :order => '_id desc')
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end
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def self.my_newest
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self.newest(User.owner)
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end
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def self.newest_by_email(email)
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self.newest(Person.first(:email => email))
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end
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#ENCRYPTION
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before_save :sign_if_mine
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key :owner_signature, String
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def signable_accessors
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accessors = self.class.roxml_attrs.collect{|definition|
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definition.accessor}
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accessors.delete 'person'
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accessors.delete 'owner_signature'
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accessors
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end
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def signable_string
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signable_accessors.collect{|accessor|
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(self.send accessor.to_sym).to_s}.join ';'
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end
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def verify_signature
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return false unless owner_signature && person.key_fingerprint
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validity = nil
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GPGME::verify(owner_signature, signable_string,
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{:armor => true, :always_trust => true}){ |signature|
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puts signature
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validity = signature.status == GPGME::GPG_ERR_NO_ERROR &&
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signature.fpr == person.key_fingerprint
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puts validity
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}
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return validity
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end
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protected
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def sign_if_mine
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if self.person == User.owner
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self.owner_signature = GPGME::sign(signable_string,nil,
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{:armor=> true, :mode => GPGME::SIG_MODE_DETACH})
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end
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end
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def destroy_comments
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comments.each{|c| c.destroy}
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end
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def propagate_retraction
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Retraction.for(self).notify_people
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end
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def send_to_view
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SocketsController.new.outgoing(self)
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end
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def remove_from_view
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SocketsController.new.outgoing(Retraction.for(self))
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end
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end
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