class Negroni::ParamFilter
ParamFilter
is responsible for filtering blacklisted parameters from a request for validation and authentication.
Public Class Methods
new(case_insensitive_keys, strip_whitespace_keys)
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Creates a new instance of `ParamFilter`.
@param case_insensitive_keys [Array<Symbol>] keys which are not case
sensitive
@param strip_whitespace_keys [Array<Symbol>] keys which should have
whitespace stripped
# File lib/negroni/param_filter.rb, line 14 def initialize(case_insensitive_keys, strip_whitespace_keys) @case_insensitive_keys = case_insensitive_keys || [] @strip_whitespace_keys = strip_whitespace_keys || [] end
Public Instance Methods
filter(conditions)
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Filter the `conditions` based on case_insensitive_keys and
\@strip_whitespace_keys.
@param conditions [Hash] the conditions hash to filter
@return [Hash] the filtered `conditions` hash
# File lib/negroni/param_filter.rb, line 25 def filter(conditions) conditions = stringify_params(conditions.dup.to_h) conditions.merge! filtered_hash_by_meth_for_keys(conditions.dup, :downcase, @case_insensitive_keys) conditions.merge! filtered_hash_by_meth_for_keys(conditions.dup, :strip, @strip_whitespace_keys) end
Private Instance Methods
filtered_hash_by_meth_for_keys(conditions, method, condition_keys)
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# File lib/negroni/param_filter.rb, line 39 def filtered_hash_by_meth_for_keys(conditions, method, condition_keys) condition_keys.each do |key| value = conditions[key] conditions[key] = value.send(method) if value.respond_to?(method) end conditions end
stringify_params(conditions)
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# File lib/negroni/param_filter.rb, line 48 def stringify_params(conditions) return conditions unless conditions.is_a? Hash conditions.each { |k, v| conditions[k] = v.to_s } end