forked from treehouse/mastodon
89 lines
2.5 KiB
Ruby
89 lines
2.5 KiB
Ruby
# 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 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
|
|
end
|
|
|
|
PROTECTED_PATHS = %w(
|
|
/auth/sign_in
|
|
/auth
|
|
/auth/password
|
|
).freeze
|
|
|
|
PROTECTED_PATHS_REGEX = Regexp.union(PROTECTED_PATHS.map { |path| /\A#{Regexp.escape(path)}/ })
|
|
|
|
# Always allow requests from localhost
|
|
# (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'
|
|
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?
|
|
end
|
|
|
|
throttle('throttle_api_media', limit: 30, period: 30.minutes) do |req|
|
|
req.authenticated_user_id if req.post? && req.path.start_with?('/api/v1/media')
|
|
end
|
|
|
|
throttle('throttle_api_sign_up', limit: 5, period: 30.minutes) do |req|
|
|
req.ip if req.post? && req.path == '/api/v1/accounts'
|
|
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 =~ API_DELETE_REBLOG_REGEX) || (req.delete? && req.path =~ API_DELETE_STATUS_REGEX)
|
|
end
|
|
|
|
throttle('protected_paths', limit: 25, period: 5.minutes) do |req|
|
|
req.ip if req.post? && req.path =~ PROTECTED_PATHS_REGEX
|
|
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
|