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# frozen_string_literal: true
module Devise
class ParameterFilter
def initialize(case_insensitive_keys, strip_whitespace_keys)
@case_insensitive_keys = case_insensitive_keys || []
@strip_whitespace_keys = strip_whitespace_keys || []
end
def filter(conditions)
conditions = stringify_params(conditions.dup)
conditions.merge!(filtered_hash_by_method_for_given_keys(conditions.dup, :downcase, @case_insensitive_keys))
conditions.merge!(filtered_hash_by_method_for_given_keys(conditions.dup, :strip, @strip_whitespace_keys))
conditions
end
def filtered_hash_by_method_for_given_keys(conditions, method, condition_keys)
condition_keys.each do |k|
next unless conditions.key?(k)
value = conditions[k]
conditions[k] = value.send(method) if value.respond_to?(method)
end
conditions
end
# Force keys to be string to avoid injection on mongoid related database.
def stringify_params(conditions)
return conditions unless conditions.is_a?(Hash)
conditions.each do |k, v|
conditions[k] = v.to_s if param_requires_string_conversion?(v)
end
end
private
def param_requires_string_conversion?(value)
true
end
end
end
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