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# Copyright (c) 2010-2011, Diaspora Inc. This file is
# licensed under the Affero General Public License version 3 or later. See
# the COPYRIGHT file.
class Reshare < Post
belongs_to :root, :class_name => 'Post', :foreign_key => :root_guid, :primary_key => :guid
validate :root_must_be_public
validates_presence_of :root, :on => :create
validates_uniqueness_of :root_guid, :scope => :author_id
delegate :author, to: :root, prefix: true
xml_attr :root_diaspora_id
xml_attr :root_guid
before_validation do
self.public = true
end
after_commit :on => :create do
self.root.update_reshares_counter
end
after_destroy do
self.root.update_reshares_counter if self.root.present?
end
def root_diaspora_id
self.root.author.diaspora_handle
end
delegate :o_embed_cache, :open_graph_cache,
:message, :nsfw,
to: :absolute_root, allow_nil: true
def raw_message
absolute_root.try(:raw_message) || super
end
def mentioned_people
absolute_root.try(:mentioned_people) || super
end
def photos
absolute_root.try(:photos) || super
end
def address
absolute_root.try(:location).try(:address)
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
def absolute_root
@absolute_root ||= self
@absolute_root = @absolute_root.root while @absolute_root.is_a? Reshare
@absolute_root
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)
if fetched_post
#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
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 or false if the post was not found
def self.fetch_post author, guid
url = author.url + "/p/#{guid}.xml"
response = Faraday.get(url)
return false if response.status == 404 # Old pod, friendika
raise "Failed to get #{url}" unless response.success? # Other error, N/A for example
Diaspora::Parser.from_xml(response.body)
end
def root_must_be_public
if self.root && !self.root.public
errors[:base] << "Only posts which are public may be reshared."
return false
end
end
end
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