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
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
# frozen_string_literal: true
require 'doorkeeper/grape/authorization_decorator'
class Rack::Attack
class Request
def authenticated_token
return @token if defined?(@token)
@token = Doorkeeper::OAuth::Token.authenticate(
Doorkeeper::Grape::AuthorizationDecorator.new(self),
*Doorkeeper.configuration.access_token_methods
)
end
def remote_ip
@remote_ip ||= (@env["action_dispatch.remote_ip"] || ip).to_s
end
def authenticated_user_id
authenticated_token&.resource_owner_id
end
def unauthenticated?
!authenticated_user_id
end
def api_request?
path.start_with?('/api')
end
def web_request?
!api_request?
end
def paging_request?
params['page'].present? || params['min_id'].present? || params['max_id'].present? || params['since_id'].present?
end
end
Rack::Attack.safelist('allow from localhost') do |req|
req.remote_ip == '127.0.0.1' || req.remote_ip == '::1'
end
Rack::Attack.blocklist('deny from blocklist') do |req|
IpBlock.blocked?(req.remote_ip)
end
throttle('throttle_authenticated_api', limit: 300, period: 5.minutes) do |req|
req.authenticated_user_id if req.api_request?
end
throttle('throttle_unauthenticated_api', limit: 300, period: 5.minutes) do |req|
req.remote_ip if req.api_request? && req.unauthenticated?
end
throttle('throttle_api_media', limit: 30, period: 30.minutes) do |req|
req.authenticated_user_id if req.post? && req.path.match?('^/api/v\d+/media')
end
throttle('throttle_media_proxy', limit: 30, period: 10.minutes) do |req|
req.remote_ip if req.path.start_with?('/media_proxy')
end
throttle('throttle_api_sign_up', limit: 5, period: 30.minutes) do |req|
req.remote_ip if req.post? && req.path == '/api/v1/accounts'
end
throttle('throttle_authenticated_paging', limit: 300, period: 15.minutes) do |req|
req.authenticated_user_id if req.paging_request?
end
throttle('throttle_unauthenticated_paging', limit: 300, period: 15.minutes) do |req|
req.remote_ip if req.paging_request? && req.unauthenticated?
end
API_DELETE_REBLOG_REGEX = /\A\/api\/v1\/statuses\/[\d]+\/unreblog/.freeze
API_DELETE_STATUS_REGEX = /\A\/api\/v1\/statuses\/[\d]+/.freeze
throttle('throttle_api_delete', limit: 30, period: 30.minutes) do |req|
req.authenticated_user_id if (req.post? && req.path.match?(API_DELETE_REBLOG_REGEX)) || (req.delete? && req.path.match?(API_DELETE_STATUS_REGEX))
end
throttle('throttle_sign_up_attempts/ip', limit: 25, period: 5.minutes) do |req|
if req.post? && req.path == '/auth'
addr = req.remote_ip
addr = IPAddr.new(addr) if addr.is_a?(String)
addr = addr.mask(64) if addr.ipv6?
addr.to_s
end
end
throttle('throttle_password_resets/ip', limit: 25, period: 5.minutes) do |req|
req.remote_ip if req.post? && req.path == '/auth/password'
end
throttle('throttle_password_resets/email', limit: 5, period: 30.minutes) do |req|
req.params.dig('user', 'email').presence if req.post? && req.path == '/auth/password'
end
throttle('throttle_email_confirmations/ip', limit: 25, period: 5.minutes) do |req|
req.remote_ip if req.post? && %w(/auth/confirmation /api/v1/emails/confirmations).include?(req.path)
end
throttle('throttle_email_confirmations/email', limit: 5, period: 30.minutes) do |req|
if req.post? && req.path == '/auth/password'
req.params.dig('user', 'email').presence
elsif req.post? && req.path == '/api/v1/emails/confirmations'
req.authenticated_user_id
end
end
throttle('throttle_login_attempts/ip', limit: 25, period: 5.minutes) do |req|
req.remote_ip if req.post? && req.path == '/auth/sign_in'
end
throttle('throttle_login_attempts/email', limit: 25, period: 1.hour) do |req|
req.session[:attempt_user_id] || req.params.dig('user', 'email').presence if req.post? && req.path == '/auth/sign_in'
end
self.throttled_response = lambda do |env|
now = Time.now.utc
match_data = env['rack.attack.match_data']
headers = {
'Content-Type' => 'application/json',
'X-RateLimit-Limit' => match_data[:limit].to_s,
'X-RateLimit-Remaining' => '0',
'X-RateLimit-Reset' => (now + (match_data[:period] - now.to_i % match_data[:period])).iso8601(6),
}
[429, headers, [{ error: I18n.t('errors.429') }.to_json]]
end
end
|
