58 lines
1.5 KiB
Ruby
58 lines
1.5 KiB
Ruby
class RateLimiter
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# A mixin we can use on ActiveRecord Models to automatically rate limit them
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# based on a SiteSetting.
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#
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# It expects a SiteSetting called `rate_limit_create_{model_name}` where
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# `model_name` is the class name of your model, underscored.
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#
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module OnCreateRecord
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# Over write to define your own rate limiter
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def default_rate_limiter
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return @rate_limiter if @rate_limiter.present?
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limit_key = "create_#{self.class.name.underscore}"
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max_setting = SiteSetting.send("rate_limit_#{limit_key}")
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@rate_limiter = RateLimiter.new(user, limit_key, 1, max_setting)
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end
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def self.included(base)
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base.extend(ClassMethods)
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end
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module ClassMethods
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def rate_limit(limiter_method=nil)
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limiter_method = limiter_method || :default_rate_limiter
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self.after_create do
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if rate_limiter = send(limiter_method)
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rate_limiter.performed!
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@performed ||= {}
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@performed[limiter_method] = true
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end
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end
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self.after_destroy do
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if rate_limiter = send(limiter_method)
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rate_limiter.rollback!
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end
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end
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self.after_rollback do
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if rate_limiter = send(limiter_method)
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if @performed.present? && @performed[limiter_method]
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rate_limiter.rollback!
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@performed[limiter_method] = false
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end
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end
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end
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end
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end
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end
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end
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