如何从Rails日志中过滤嵌套参数

I see that I can filter keys from Rails logs here, but it's not entirely clear how I can filter a key that is nested inside the parameter hash.

我看到我可以从Rails日志中过滤键，但是还不完全清楚如何过滤在参数散列中嵌套的键。

My params hash looks like this:

我的params散列是这样的:

{"download"=>{"attachment_id"=>"54039", "data"=>"data:image/png;base64,iVBORw0..."}}

Where params[:download][:data] is a base64 string. It is a large amount of data and I would like to remove it from my logs.

其中params[:download][:data]是一个base64字符串。这是大量的数据，我想从我的日志中删除它。

Is this possible?

这是可能的吗?

I'm using Rails 4.0.4

我使用Rails 4.0.4

2 个解决方案

#1

Simply put this in application.rb:

简单地把这个应用。

config.filter_parameters += [:data]

配置。filter_parameters + =(数据):

This would filter nested [:data] keys also.

这也将过滤嵌套的[:data]键。

In rails 5, you can define hierarchy of the key:

在rails 5中，您可以定义键的层次结构:

config.filter_parameters += ["download.data"]

配置。filter_parameters + =(“download.data”)

This would filter all the [:data] keys which have [:download] as the immediate parent.

这将过滤所有以[:data]键作为父键的[:download]。

#2

I guess the most straight-forward way is to monkeypatch Rails code for parameter filtering in your config/initializers/filter_parameter_logging.rb:

我想最直接的方法是在配置/初始化器/ filter_parameter_logg. rb中使用monkeypatch Rails代码进行参数筛选。

# monkeypatch to filter nested parameters
class ActionDispatch::Http::ParameterFilter::CompiledFilter
  def call(original_params, path = [])
    filtered_params = {}

    original_params.each do |key, value|
      if regexps.any? { |r| key =~ r || (path + [key]).join('/') =~ r  }
        value = ActionDispatch::Http::ParameterFilter::FILTERED
      elsif value.is_a?(Hash)
        value = call(value, path + [key])
      elsif value.is_a?(Array)
        value = value.map { |v| v.is_a?(Hash) ? call(v, path + [key]) : v }
      elsif blocks.any?
        key = key.dup
        value = value.dup if value.duplicable?
        blocks.each { |b| b.call(key, value) }
      end

      filtered_params[key] = value
    end

    filtered_params
  end
end

and then:

然后:

Rails.application.config.filter_parameters += ['download/data']

Rails.application.config。filter_parameters + =(“下载/数据”)

#1