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Improve rate limiting (#10860)

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* Rate limit based on remote address IP, not on potential reverse proxy

* Limit rate of unauthenticated API requests further

* Rate-limit paging requests to one every 3 seconds
This commit is contained in:
ThibG 2019-05-27 21:57:49 +02:00 committed by Eugen Rochko
parent 3593b85423
commit 0e9b8be18a
1 changed files with 23 additions and 6 deletions
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29
config/initializers/rack_attack.rb
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@ -13,6 +13,10 @@ class Rack::Attack
)
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
@ -28,6 +32,10 @@ class Rack::Attack
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
PROTECTED_PATHS = %w(
@ -42,15 +50,15 @@ class Rack::Attack
# (blocklist & throttles are skipped)
Rack::Attack.safelist('allow from localhost') do |req|
# Requests are allowed if the return value is truthy
req.ip == '127.0.0.1' || req.ip == '::1'
req.remote_ip == '127.0.0.1' || req.remote_ip == '::1'
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: 7_500, period: 5.minutes) do |req|
req.ip if req.api_request?
throttle('throttle_unauthenticated_api', limit: 300, period: 5.minutes) do |req|
req.remote_ip if req.api_request? && !req.authenticated?
end
throttle('throttle_api_media', limit: 30, period: 30.minutes) do |req|
@ -58,11 +66,20 @@ class Rack::Attack
end
throttle('throttle_media_proxy', limit: 30, period: 30.minutes) do |req|
req.ip if req.path.start_with?('/media_proxy')
req.remote_ip if req.path.start_with?('/media_proxy')
end
throttle('throttle_api_sign_up', limit: 5, period: 30.minutes) do |req|
req.ip if req.post? && req.path == '/api/v1/accounts'
req.remote_ip if req.post? && req.path == '/api/v1/accounts'
end
# Throttle paging, as it is mainly used for public pages and AP collections
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.authenticated?
end
API_DELETE_REBLOG_REGEX = /\A\/api\/v1\/statuses\/[\d]+\/unreblog/.freeze
@ -73,7 +90,7 @@ class Rack::Attack
end
throttle('protected_paths', limit: 25, period: 5.minutes) do |req|
req.ip if req.post? && req.path =~ PROTECTED_PATHS_REGEX
req.remote_ip if req.post? && req.path =~ PROTECTED_PATHS_REGEX
end
self.throttled_response = lambda do |env|