catstodon/app/models/remote_follow.rb

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# frozen_string_literal: true
class RemoteFollow
include ActiveModel::Validations
attr_accessor :acct, :addressable_template
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def initialize(attrs = {})
@acct = attrs[:acct].strip unless attrs[:acct].nil?
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end
def valid?
populate_template
errors.empty?
end
def subscribe_address_for(account)
addressable_template.expand(uri: account.to_webfinger_s).to_s
end
private
def populate_template
if acct.blank? || redirect_url_link.nil? || redirect_url_link.template.nil?
missing_resource_error
else
@addressable_template = Addressable::Template.new(redirect_uri_template)
end
end
def redirect_uri_template
redirect_url_link.template
end
def redirect_url_link
acct_resource&.link('http://ostatus.org/schema/1.0/subscribe')
end
def acct_resource
@_acct_resource ||= Goldfinger.finger("acct:#{acct}")
rescue Goldfinger::Error
missing_resource_error
nil
end
def missing_resource_error
errors.add(:acct, I18n.t('remote_follow.missing_resource'))
end
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end