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Incoming Salmon requests can be turned into follows and unfollows

pull/4/head
Eugen Rochko 6 years ago
parent
commit
ee73d35eea
3 changed files with 49 additions and 13 deletions
  1. +6
    -0
      README.md
  2. +39
    -10
      app/services/process_interaction_service.rb
  3. +4
    -3
      config/initializers/ostatus.rb

+ 6
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README.md View File

@ -11,3 +11,9 @@ The core ideals of this project are:
- Ease of deployment. The end-goal of this project is to be distributable as a Docker image.
**Current status of the project is early development. Documentation, licensing information &co will be added later**
## Configuration
- `LOCAL_DOMAIN` should be the domain/hostname of your instance. This is **absolutely required** as it is used for generating unique IDs for everything federation-related
- `LOCAL_HTTPS` set it to `true` if HTTPS works on your website. This is used to generate canonical URLs, which is also important when generating and parsing federation-related IDs
- `HUB_URL` should be the URL of the PubsubHubbub service that your instance is going to use. By default it is the open service of Superfeedr

+ 39
- 10
app/services/process_interaction_service.rb View File

@ -1,35 +1,64 @@
class ProcessInteractionService
include ApplicationHelper
def call(envelope, target_account)
body = salmon.unpack(envelope)
xml = Nokogiri::XML(body)
return if !involves_target_account(xml, target_account) || xml.at_xpath('//xmlns:author/xmlns:name').nil? || xml.at_xpath('//xmlns:author/xmlns:uri').nil?
return unless involves_target_account?(xml, target_account) && contains_author?(xml)
username = xml.at_xpath('//xmlns:author/xmlns:name').content
url = xml.at_xpath('//xmlns:author/xmlns:uri').content
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)
verb = xml.at_path('//activity:verb').content
case verb
when 'http://activitystrea.ms/schema/1.0/follow', 'follow'
case get_verb(xml)
when :follow
account.follow!(target_account)
when 'http://activitystrea.ms/schema/1.0/unfollow', 'unfollow'
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 involves_target_account(target_account)
# todo
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

+ 4
- 3
config/initializers/ostatus.rb View File

@ -1,6 +1,7 @@
LOCAL_DOMAIN = ENV['LOCAL_DOMAIN'] || 'localhost'
HUB_URL = ENV['HUB_URL'] || 'https://pubsubhubbub.superfeedr.com'
LOCAL_DOMAIN = ENV['LOCAL_DOMAIN'] || 'localhost'
HUB_URL = ENV['HUB_URL'] || 'https://pubsubhubbub.superfeedr.com'
CANONICAL_PROTOCOL = ENV['LOCAL_HTTPS'] == 'true' ? 'https://' : 'http://'
Rails.application.configure do
config.action_mailer.default_url_options = { host: LOCAL_DOMAIN }
config.action_mailer.default_url_options = { host: LOCAL_DOMAIN, protocol: CANONICAL_PROTOCOL }
end

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