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45 lines
1.3 KiB
Ruby
45 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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class Rack::Attack
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# Always allow requests from localhost
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# (blocklist & throttles are skipped)
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Rack::Attack.safelist('allow from localhost') do |req|
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# Requests are allowed if the return value is truthy
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'127.0.0.1' == req.ip || '::1' == req.ip
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end
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# Rate limits for the API
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throttle('api', limit: 300, period: 5.minutes) do |req|
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req.ip if req.path =~ /\A\/api\/v/
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end
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# Rate limit logins
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throttle('login', limit: 5, period: 5.minutes) do |req|
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req.ip if req.path == '/auth/sign_in' && req.post?
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end
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# Rate limit sign-ups
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throttle('register', limit: 5, period: 5.minutes) do |req|
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req.ip if req.path == '/auth' && req.post?
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end
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# Rate limit forgotten passwords
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throttle('reminder', limit: 5, period: 5.minutes) do |req|
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req.ip if req.path == '/auth/password' && req.post?
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end
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self.throttled_response = lambda do |env|
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now = Time.now.utc
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match_data = env['rack.attack.match_data']
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headers = {
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'Content-Type' => 'application/json',
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'X-RateLimit-Limit' => match_data[:limit].to_s,
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'X-RateLimit-Remaining' => '0',
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'X-RateLimit-Reset' => (now + (match_data[:period] - now.to_i % match_data[:period])).iso8601(6),
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}
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[429, headers, [{ error: I18n.t('errors.429') }.to_json]]
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end
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end
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