92 lines
3.1 KiB
Ruby
92 lines
3.1 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class FollowRemoteAccountService < BaseService
|
|
include OStatus2::MagicKey
|
|
|
|
DFRN_NS = 'http://purl.org/macgirvin/dfrn/1.0'
|
|
|
|
# Find or create a local account for a remote user.
|
|
# When creating, look up the user's webfinger and fetch all
|
|
# important information from their feed
|
|
# @param [String] uri User URI in the form of username@domain
|
|
# @return [Account]
|
|
def call(uri)
|
|
username, domain = uri.split('@')
|
|
|
|
return Account.find_local(username) if TagManager.instance.local_domain?(domain)
|
|
|
|
account = Account.find_remote(username, domain)
|
|
return account unless account.nil?
|
|
|
|
Rails.logger.debug "Looking up webfinger for #{uri}"
|
|
|
|
account = Account.new(username: username, domain: domain)
|
|
|
|
data = Goldfinger.finger("acct:#{uri}")
|
|
|
|
raise Goldfinger::Error, 'Missing resource links' if data.link('http://schemas.google.com/g/2010#updates-from').nil? || data.link('salmon').nil? || data.link('http://webfinger.net/rel/profile-page').nil? || data.link('magic-public-key').nil?
|
|
|
|
confirmed_username, confirmed_domain = data.subject.gsub(/\Aacct:/, '').split('@')
|
|
|
|
return Account.find_local(confirmed_username) if TagManager.instance.local_domain?(confirmed_domain)
|
|
|
|
confirmed_account = Account.find_remote(confirmed_username, confirmed_domain)
|
|
return confirmed_account unless confirmed_account.nil?
|
|
|
|
Rails.logger.debug "Creating new remote account for #{uri}"
|
|
|
|
domain_block = DomainBlock.find_by(domain: domain)
|
|
|
|
account.remote_url = data.link('http://schemas.google.com/g/2010#updates-from').href
|
|
account.salmon_url = data.link('salmon').href
|
|
account.url = data.link('http://webfinger.net/rel/profile-page').href
|
|
account.public_key = magic_key_to_pem(data.link('magic-public-key').href)
|
|
account.private_key = nil
|
|
account.suspended = true if domain_block && domain_block.suspend?
|
|
account.silenced = true if domain_block && domain_block.silence?
|
|
|
|
body, xml = get_feed(account.remote_url)
|
|
hubs = get_hubs(xml)
|
|
|
|
account.uri = get_account_uri(xml)
|
|
account.hub_url = hubs.first.attribute('href').value
|
|
|
|
get_profile(body, account)
|
|
account.save!
|
|
|
|
account
|
|
end
|
|
|
|
private
|
|
|
|
def get_feed(url)
|
|
response = http_client.get(Addressable::URI.parse(url))
|
|
[response.to_s, Nokogiri::XML(response)]
|
|
end
|
|
|
|
def get_hubs(xml)
|
|
hubs = xml.xpath('//xmlns:link[@rel="hub"]')
|
|
raise Goldfinger::Error, 'No PubSubHubbub hubs found' if hubs.empty? || hubs.first.attribute('href').nil?
|
|
hubs
|
|
end
|
|
|
|
def get_account_uri(xml)
|
|
author_uri = xml.at_xpath('/xmlns:feed/xmlns:author/xmlns:uri')
|
|
|
|
if author_uri.nil?
|
|
owner = xml.at_xpath('/xmlns:feed').at_xpath('./dfrn:owner', dfrn: DFRN_NS)
|
|
author_uri = owner.at_xpath('./xmlns:uri') unless owner.nil?
|
|
end
|
|
|
|
raise Goldfinger::Error, 'Author URI could not be found' if author_uri.nil?
|
|
author_uri.content
|
|
end
|
|
|
|
def get_profile(body, account)
|
|
RemoteProfileUpdateWorker.perform_async(account.id, body.force_encoding('UTF-8'), false)
|
|
end
|
|
|
|
def http_client
|
|
HTTP.timeout(:per_operation, write: 20, connect: 20, read: 50)
|
|
end
|
|
end
|