diaspora/app/models/reshare.rb
2011-08-25 17:16:09 -07:00

69 lines
2 KiB
Ruby

class Reshare < Post
belongs_to :root, :class_name => 'Post', :foreign_key => :root_guid, :primary_key => :guid
validate :root_must_be_public
attr_accessible :root_guid, :public
validates_presence_of :root, :on => :create
validates_uniqueness_of :root_guid, :scope => :author_id
xml_attr :root_diaspora_id
xml_attr :root_guid
before_validation do
self.public = true
end
def root_diaspora_id
self.root.author.diaspora_handle
end
def receive(recipient, sender)
local_reshare = Reshare.where(:guid => self.guid).first
if local_reshare && local_reshare.root.author_id == recipient.person.id
return unless recipient.has_contact_for?(sender)
end
super(recipient, sender)
end
def comment_email_subject
I18n.t('reshares.comment_email_subject', :resharer => author.name, :author => root.author.name)
end
def notification_type(user, person)
Notifications::Reshared if root.author == user.person
end
private
def after_parse
root_author = Webfinger.new(@root_diaspora_id).fetch
root_author.save! unless root_author.persisted?
return if Post.exists?(:guid => self.root_guid)
fetched_post = self.class.fetch_post(root_author, self.root_guid)
#Why are we checking for this?
if root_author.diaspora_handle != fetched_post.diaspora_handle
raise "Diaspora ID (#{fetched_post.diaspora_handle}) in the root does not match the Diaspora ID (#{root_author.diaspora_handle}) specified in the reshare!"
end
fetched_post.save!
end
# Fetch a remote public post, used for receiving reshares of unknown posts
# @param [Person] author the remote post's author
# @param [String] guid the remote post's guid
# @return [Post] an unsaved remote post
def self.fetch_post author, guid
response = Faraday.get(author.url + "/p/#{guid}.xml")
Diaspora::Parser.from_xml(response.body)
end
def root_must_be_public
if self.root && !self.root.public
errors[:base] << "you must reshare public posts"
return false
end
end
end