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
|
# frozen_string_literal: true
require 'singleton'
class FeedManager
include Singleton
MAX_ITEMS = 800
def key(type, id)
"feed:#{type}:#{id}"
end
def filter?(timeline_type, status, receiver)
if timeline_type == :home
filter_from_home?(status, receiver)
elsif timeline_type == :mentions
filter_from_mentions?(status, receiver)
elsif timeline_type == :public
filter_from_public?(status, receiver)
else
false
end
end
def push(timeline_type, account, status)
redis.zadd(key(timeline_type, account.id), status.id, status.reblog? ? status.reblog_of_id : status.id)
trim(timeline_type, account.id)
broadcast(account.id, type: 'update', timeline: timeline_type, message: inline_render(account, 'api/v1/statuses/show', status))
end
def broadcast(timeline_id, options = {})
ActionCable.server.broadcast("timeline:#{timeline_id}", options)
end
def trim(type, account_id)
return unless redis.zcard(key(type, account_id)) > FeedManager::MAX_ITEMS
last = redis.zrevrange(key(type, account_id), FeedManager::MAX_ITEMS - 1, FeedManager::MAX_ITEMS - 1)
redis.zremrangebyscore(key(type, account_id), '-inf', "(#{last.last}")
end
def inline_render(target_account, template, object)
rabl_scope = Class.new do
include RoutingHelper
def initialize(account)
@account = account
end
def current_user
@account.try(:user)
end
def current_account
@account
end
end
Rabl::Renderer.new(template, object, view_path: 'app/views', format: :json, scope: rabl_scope.new(target_account)).render
end
private
def redis
Redis.current
end
def filter_from_home?(status, receiver)
should_filter = false
if status.reply? && !status.thread.account.nil? # Filter out if it's a reply
should_filter = !receiver.following?(status.thread.account) # and I'm not following the person it's a reply to
should_filter &&= !(receiver.id == status.thread.account_id) # and it's not a reply to me
should_filter &&= !(status.account_id == status.thread.account_id) # and it's not a self-reply
elsif status.reblog? # Filter out a reblog
should_filter = receiver.blocking?(status.reblog.account) # if I'm blocking the reblogged person
end
should_filter ||= receiver.blocking?(status.mentions.map(&:account_id)) # or if it mentions someone I blocked
should_filter
end
def filter_from_mentions?(status, receiver)
should_filter = receiver.id == status.account_id # Filter if I'm mentioning myself
should_filter ||= receiver.blocking?(status.account) # or it's from someone I blocked
should_filter ||= receiver.blocking?(status.mentions.includes(:account).map(&:account)) # or if it mentions someone I blocked
should_filter ||= (status.account.silenced? && !receiver.following?(status.account)) # of if the account is silenced and I'm not following them
if status.reply? && !status.thread.account.nil? # or it's a reply
should_filter ||= receiver.blocking?(status.thread.account) # to a user I blocked
end
should_filter
end
def filter_from_public?(status, receiver)
should_filter = receiver.blocking?(status.account)
should_filter ||= receiver.blocking?(status.mentions.includes(:account).map(&:account))
if status.reply? && !status.thread.account.nil?
should_filter ||= receiver.blocking?(status.thread.account)
elsif status.reblog?
should_filter ||= receiver.blocking?(status.reblog.account)
end
should_filter
end
end
|
