Module: ActionDispatch::Http::FilterParameters

### Home Classes Methods

### In Files

- lib/action_dispatch/http/filter_parameters.rb

### Methods

- #env_filter
- #filtered_env
- #filtered_parameters
- #filtered_path
- #filtered_query_string
- #parameter_filter
- #parameter_filter_for

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No matching classes.

# ActionDispatch::Http::FilterParameters

Allows you to specify sensitive parameters which will be replaced from the request log by looking in the query string of the request and all subhashes of the params hash to filter. If a block is given, each key and value of the params hash and all subhashes is passed to it, the value or key can be replaced using String#replace or similar method.

Examples:

    env["action_dispatch.parameter_filter"] = [:password]
    => replaces the value to all keys matching /password/i with "[FILTERED]"

    env["action_dispatch.parameter_filter"] = [:foo, "bar"]
    => replaces the value to all keys matching /foo|bar/i with "[FILTERED]"

    env["action_dispatch.parameter_filter"] = lambda do |k,v|
      v.reverse! if k =~ /secret/i
    end
    => reverses the value to all keys matching /secret/i

### Constants

KV_RE
PAIR_RE

### Public Instance Methods

filtered_env() click to toggle source

Return a hash of request.env with all sensitive data replaced.

    # File lib/action_dispatch/http/filter_parameters.rb, line 35
    def filtered_env
      @filtered_env ||= env_filter.filter(@env)
    end

filtered_parameters() click to toggle source

Return a hash of parameters with all sensitive data replaced.

    # File lib/action_dispatch/http/filter_parameters.rb, line 30
    def filtered_parameters
      @filtered_parameters ||= parameter_filter.filter(parameters)
    end

filtered_path() click to toggle source

Reconstructed a path with all sensitive GET parameters replaced.

    # File lib/action_dispatch/http/filter_parameters.rb, line 40
    def filtered_path
      @filtered_path ||= query_string.empty? ? path : "#{path}?#{filtered_query_string}"
    end

### Protected Instance Methods

env_filter() click to toggle source

    # File lib/action_dispatch/http/filter_parameters.rb, line 50
    def env_filter
      parameter_filter_for(Array.wrap(@env["action_dispatch.parameter_filter"]) << /RAW_POST_DATA/)
    end

filtered_query_string() click to toggle source

    # File lib/action_dispatch/http/filter_parameters.rb, line 60
    def filtered_query_string
      query_string.gsub(PAIR_RE) do |_|
        parameter_filter.filter([[$1, $2]]).first.join("=")
      end
    end

parameter_filter() click to toggle source

    # File lib/action_dispatch/http/filter_parameters.rb, line 46
    def parameter_filter
      parameter_filter_for(@env["action_dispatch.parameter_filter"])
    end

parameter_filter_for(filters) click to toggle source

    # File lib/action_dispatch/http/filter_parameters.rb, line 54
    def parameter_filter_for(filters)
      ParameterFilter.new(filters)
    end

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