about summary refs log tree commit diff
path: root/app/services/fan_out_on_write_service.rb
blob: 5f3feeed93e0150a08ed4da13682e6da4eaaef6a (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
# frozen_string_literal: true

class FanOutOnWriteService < BaseService
  # Push a status into home and mentions feeds
  # @param [Status] status
  def call(status)
    raise Mastodon::RaceConditionError if status.visibility.nil?

    deliver_to_self(status) if status.account.local?

    if status.direct_visibility?
      deliver_to_mentioned_followers(status)
      deliver_to_direct_timelines(status)
      deliver_to_own_conversation(status)
    elsif status.limited_visibility?
      deliver_to_mentioned_followers(status)
    else
      deliver_to_followers(status)
      deliver_to_lists(status)
    end

    return if status.account.silenced? || !status.public_visibility?
    return if status.reblog? && !Setting.show_reblogs_in_public_timelines

    render_anonymous_payload(status)

    deliver_to_hashtags(status)

    return if status.reply? && status.in_reply_to_account_id != status.account_id && !Setting.show_replies_in_public_timelines

    deliver_to_public(status)
    deliver_to_media(status) if status.media_attachments.any?
  end

  private

  def deliver_to_self(status)
    Rails.logger.debug "Delivering status #{status.id} to author"
    FeedManager.instance.push_to_home(status.account, status)
    FeedManager.instance.push_to_direct(status.account, status) if status.direct_visibility?
  end

  def deliver_to_followers(status)
    Rails.logger.debug "Delivering status #{status.id} to followers"

    status.account.followers_for_local_distribution.select(:id).reorder(nil).find_in_batches do |followers|
      FeedInsertWorker.push_bulk(followers) do |follower|
        [status.id, follower.id, :home]
      end
    end
  end

  def deliver_to_lists(status)
    Rails.logger.debug "Delivering status #{status.id} to lists"

    status.account.lists_for_local_distribution.select(:id).reorder(nil).find_in_batches do |lists|
      FeedInsertWorker.push_bulk(lists) do |list|
        [status.id, list.id, :list]
      end
    end
  end

  def deliver_to_mentioned_followers(status)
    Rails.logger.debug "Delivering status #{status.id} to limited followers"

    status.mentions.joins(:account).merge(status.account.followers_for_local_distribution).select(:id).reorder(nil).find_in_batches do |followers|
      FeedInsertWorker.push_bulk(followers) do |follower|
        [status.id, follower.id, :home]
      end
    end
  end

  def render_anonymous_payload(status)
    @payload = InlineRenderer.render(status, nil, :status)
    @payload = Oj.dump(event: :update, payload: @payload)
  end

  def deliver_to_hashtags(status)
    Rails.logger.debug "Delivering status #{status.id} to hashtags"

    status.tags.pluck(:name).each do |hashtag|
      Redis.current.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}", @payload)
      Redis.current.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}:local", @payload) if status.local?
    end
  end

  def deliver_to_public(status)
    Rails.logger.debug "Delivering status #{status.id} to public timeline"

    Redis.current.publish('timeline:public', @payload)
    if status.local?
      Redis.current.publish('timeline:public:local', @payload)
    else
      Redis.current.publish('timeline:public:remote', @payload)
    end
  end

  def deliver_to_media(status)
    Rails.logger.debug "Delivering status #{status.id} to media timeline"

    Redis.current.publish('timeline:public:media', @payload)
    if status.local?
      Redis.current.publish('timeline:public:local:media', @payload)
    else
      Redis.current.publish('timeline:public:remote:media', @payload)
    end
  end

  def deliver_to_direct_timelines(status)
    Rails.logger.debug "Delivering status #{status.id} to direct timelines"

    FeedInsertWorker.push_bulk(status.mentions.includes(:account).map(&:account).select { |mentioned_account| mentioned_account.local? }) do |account|
      [status.id, account.id, :direct]
    end
  end

  def deliver_to_own_conversation(status)
    AccountConversation.add_status(status.account, status)
  end
end