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whippy-edition/app/services/follow_service.rb
ThibG f1f96ebf02
Fix being able to import more than allowed number of follows (#15384)
* Fix being able to import more than allowed number of follows

Without this commit, if someone tries importing a second list of accounts to
follow before the first one has been processed, this will queue imports for
the two whole lists, even if they exceed the account's allowed number of
outgoing follows.

This commit changes it so the individual queued imports aren't exempt from
the follow limit check (they remain exempt from the rate-limiting check
though).

* Catch validation errors to not re-queue failed follows

Co-authored-by: Claire <claire.github-309c@sitedethib.com>
2020-12-26 23:52:46 +01:00

82 lines
3.3 KiB
Ruby

# 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] :bypass_limit Allow following past the total follow number
# @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, bypass_limit: 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], bypass_limit: @options[:bypass_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], bypass_limit: @options[:bypass_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