72 lines
2 KiB
Ruby
72 lines
2 KiB
Ruby
class ProcessInteractionService
|
|
include ApplicationHelper
|
|
|
|
def call(envelope, target_account)
|
|
body = salmon.unpack(envelope)
|
|
xml = Nokogiri::XML(body)
|
|
|
|
return unless involves_target_account?(xml, target_account) && contains_author?(xml)
|
|
|
|
username = xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:name').content
|
|
url = xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:uri').content
|
|
domain = Addressable::URI.parse(url).host
|
|
account = Account.find_by(username: username, domain: domain)
|
|
|
|
if account.nil?
|
|
account = follow_remote_account_service.("acct:#{username}@#{domain}")
|
|
return if account.nil?
|
|
end
|
|
|
|
if salmon.verify(envelope, account.keypair)
|
|
case get_verb(xml)
|
|
when :follow
|
|
account.follow!(target_account)
|
|
when :unfollow
|
|
account.unfollow!(target_account)
|
|
when :favorite
|
|
# todo: a favourite
|
|
when :post
|
|
# todo: a reply
|
|
when :share
|
|
# todo: a reblog
|
|
end
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def contains_author?(xml)
|
|
!(xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:name').nil? || xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:uri').nil?)
|
|
end
|
|
|
|
def involves_target_account?(xml, account)
|
|
targeted_at_account?(xml, account) || mentions_account?(xml, account)
|
|
end
|
|
|
|
def targeted_at_account?(xml, account)
|
|
target_id = xml.at_xpath('/xmlns:entry/activity:object/xmlns:id')
|
|
!target_id.nil? && target_id.content == profile_url(name: account.username)
|
|
end
|
|
|
|
def mentions_account?(xml, account)
|
|
xml.xpath('/xmlns:entry/xmlns:link[@rel="mentioned"]').each do |mention_link|
|
|
return true if mention_link.attribute('ref') == profile_url(name: account.username)
|
|
end
|
|
|
|
false
|
|
end
|
|
|
|
def get_verb(xml)
|
|
verb = xml.at_xpath('//activity:verb').content.gsub 'http://activitystrea.ms/schema/1.0/', ''
|
|
verb.to_sym
|
|
end
|
|
|
|
def salmon
|
|
OStatus2::Salmon.new
|
|
end
|
|
|
|
def follow_remote_account_service
|
|
FollowRemoteAccountService.new
|
|
end
|
|
end
|