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# frozen_string_literal: true
class FollowService < BaseService
include Redisable
include Payloadable
# Follow a remote user, notify remote user about the follow
# @param [Account] source_account From which to follow
# @param [String, Account] uri User URI to follow in the form of username@domain (or account record)
# @param [Hash] options
# @option [Boolean] :reblogs Whether or not to show reblogs, defaults to true
# @option [Boolean] :notify Whether to create notifications about new posts, defaults to false
# @option [Boolean] :bypass_locked
# @option [Boolean] :with_rate_limit
def call(source_account, target_account, options = {})
@source_account = source_account
@target_account = ResolveAccountService.new.call(target_account, skip_webfinger: true)
@options = { bypass_locked: false, with_rate_limit: false }.merge(options)
raise ActiveRecord::RecordNotFound if following_not_possible?
raise Mastodon::NotPermittedError if following_not_allowed?
if @source_account.following?(@target_account)
return change_follow_options!
elsif @source_account.requested?(@target_account)
return change_follow_request_options!
end
ActivityTracker.increment('activity:interactions')
if (@target_account.locked? && !@options[:bypass_locked]) || @source_account.silenced? || @target_account.activitypub?
request_follow!
elsif @target_account.local?
direct_follow!
end
end
private
def following_not_possible?
@target_account.nil? || @target_account.id == @source_account.id || @target_account.suspended?
end
def following_not_allowed?
@target_account.blocking?(@source_account) || @source_account.blocking?(@target_account) || @target_account.moved? || (!@target_account.local? && @target_account.ostatus?) || @source_account.domain_blocking?(@target_account.domain)
end
def change_follow_options!
@source_account.follow!(@target_account, reblogs: @options[:reblogs], notify: @options[:notify])
end
def change_follow_request_options!
@source_account.request_follow!(@target_account, reblogs: @options[:reblogs], notify: @options[:notify])
end
def request_follow!
follow_request = @source_account.request_follow!(@target_account, reblogs: @options[:reblogs], notify: @options[:notify], rate_limit: @options[:with_rate_limit])
if @target_account.local?
LocalNotificationWorker.perform_async(@target_account.id, follow_request.id, follow_request.class.name, :follow_request)
elsif @target_account.activitypub?
ActivityPub::DeliveryWorker.perform_async(build_json(follow_request), @source_account.id, @target_account.inbox_url)
end
follow_request
end
def direct_follow!
follow = @source_account.follow!(@target_account, reblogs: @options[:reblogs], notify: @options[:notify], rate_limit: @options[:with_rate_limit])
LocalNotificationWorker.perform_async(@target_account.id, follow.id, follow.class.name, :follow)
MergeWorker.perform_async(@target_account.id, @source_account.id)
follow
end
def build_json(follow_request)
Oj.dump(serialize_payload(follow_request, ActivityPub::FollowSerializer))
end
end
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