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116 lines
3.3 KiB
Ruby
116 lines
3.3 KiB
Ruby
class ProcessInteractionService < BaseService
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# Record locally the remote interaction with our user
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# @param [String] envelope Salmon envelope
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# @param [Account] target_account Account the Salmon was addressed to
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def call(envelope, target_account)
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body = salmon.unpack(envelope)
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xml = Nokogiri::XML(body)
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return unless contains_author?(xml)
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username = xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:name').content
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url = xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:uri').content
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domain = Addressable::URI.parse(url).host
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account = Account.find_by(username: username, domain: domain)
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if account.nil?
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account = follow_remote_account_service.("#{username}@#{domain}")
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end
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if salmon.verify(envelope, account.keypair)
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update_remote_profile_service.(xml.at_xpath('/xmlns:entry/xmlns:author'), account)
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case verb(xml)
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when :follow
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follow!(account, target_account)
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when :unfollow
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unfollow!(account, target_account)
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when :favorite
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favourite!(xml, account)
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when :post
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add_post!(body, account) if mentions_account?(xml, target_account)
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when :share
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add_post!(body, account) unless status(xml).nil?
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when :delete
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delete_post!(xml, account)
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end
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end
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rescue Goldfinger::Error, HTTP::Error
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nil
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end
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private
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def contains_author?(xml)
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!(xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:name').nil? || xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:uri').nil?)
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end
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def mentions_account?(xml, account)
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xml.xpath('/xmlns:entry/xmlns:link[@rel="mentioned"]').each { |mention_link| return true if mention_link.attribute('href').value == TagManager.instance.url_for(account) }
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false
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end
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def verb(xml)
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xml.at_xpath('//activity:verb').content.gsub('http://activitystrea.ms/schema/1.0/', '').gsub('http://ostatus.org/schema/1.0/', '').to_sym
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rescue
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:post
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end
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def follow!(account, target_account)
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account.follow!(target_account)
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NotificationMailer.follow(target_account, account).deliver_later
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end
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def unfollow!(account, target_account)
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account.unfollow!(target_account)
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end
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def delete_post!(xml, account)
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status = Status.find(activity_id(xml))
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return if status.nil?
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if account.id == status.account_id
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remove_status_service.(status)
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end
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end
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def favourite!(xml, from_account)
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current_status = status(xml)
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current_status.favourites.where(account: from_account).first_or_create!(account: from_account)
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NotificationMailer.favourite(current_status, from_account).deliver_later
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end
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def add_post!(body, account)
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process_feed_service.(body, account)
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end
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def status(xml)
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Status.find(TagManager.instance.unique_tag_to_local_id(activity_id(xml), 'Status'))
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end
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def activity_id(xml)
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xml.at_xpath('//activity:object/xmlns:id').content
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end
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def salmon
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@salmon ||= OStatus2::Salmon.new
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end
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def follow_remote_account_service
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@follow_remote_account_service ||= FollowRemoteAccountService.new
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end
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def process_feed_service
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@process_feed_service ||= ProcessFeedService.new
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end
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def update_remote_profile_service
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@update_remote_profile_service ||= UpdateRemoteProfileService.new
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end
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def remove_status_service
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@remove_status_service ||= RemoveStatusService.new
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end
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end
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