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# frozen_string_literal: true
require 'singleton'
class ActivityPub::TagManager
include Singleton
include RoutingHelper
CONTEXT = 'https://www.w3.org/ns/activitystreams'
COLLECTIONS = {
public: 'https://www.w3.org/ns/activitystreams#Public',
}.freeze
def url_for(target)
return target.url if target.respond_to?(:local?) && !target.local?
case target.object_type
when :person
short_account_url(target)
when :note, :comment, :activity
return activity_account_status_url(target.account, target) if target.reblog?
short_account_status_url(target.account, target)
end
end
def uri_for(target)
return target.uri if target.respond_to?(:local?) && !target.local?
case target.object_type
when :person
account_url(target)
when :note, :comment, :activity
return activity_account_status_url(target.account, target) if target.reblog?
account_status_url(target.account, target)
end
end
def activity_uri_for(target)
raise ArgumentError, 'target must be a local activity' unless %i(note comment activity).include?(target.object_type) && target.local?
activity_account_status_url(target.account, target)
end
# Primary audience of a status
# Public statuses go out to primarily the public collection
# Unlisted and private statuses go out primarily to the followers collection
# Others go out only to the people they mention
def to(status)
case status.visibility
when 'public'
[COLLECTIONS[:public]]
when 'unlisted', 'private'
[account_followers_url(status.account)]
when 'direct'
status.mentions.map { |mention| uri_for(mention.account) }
end
end
# Secondary audience of a status
# Public statuses go out to followers as well
# Unlisted statuses go to the public as well
# Both of those and private statuses also go to the people mentioned in them
# Direct ones don't have a secondary audience
def cc(status)
cc = []
case status.visibility
when 'public'
cc << account_followers_url(status.account)
when 'unlisted'
cc << COLLECTIONS[:public]
end
cc.concat(status.mentions.map { |mention| uri_for(mention.account) }) unless status.direct_visibility?
cc
end
def local_uri?(uri)
uri = Addressable::URI.parse(uri)
host = uri.normalized_host
host = "#{host}:#{uri.port}" if uri.port
!host.nil? && (::TagManager.instance.local_domain?(host) || ::TagManager.instance.web_domain?(host))
end
def uri_to_local_id(uri, param = :id)
path_params = Rails.application.routes.recognize_path(uri)
path_params[param]
end
def uri_to_resource(uri, klass)
if local_uri?(uri)
case klass.name
when 'Account'
klass.find_local(uri_to_local_id(uri, :username))
else
StatusFinder.new(uri).status
end
elsif OStatus::TagManager.instance.local_id?(uri)
klass.find_by(id: OStatus::TagManager.instance.unique_tag_to_local_id(uri, klass.to_s))
else
klass.find_by(uri: uri.split('#').first)
end
rescue ActiveRecord::RecordNotFound
nil
end
end
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