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module RequestLogAnalyzer::Filter
# Filter to select or reject a specific field
# Options
# * <tt>:mode</tt> :reject or :accept.
# * <tt>:field</tt> Specific field to accept or reject.
# * <tt>:value</tt> Value that the field should match to be accepted or rejected.
class Field < Base
attr_reader :field, :value, :mode
def initialize(file_format, options = {})
super(file_format, options)
setup_filter
end
# Setup mode, field and value.
def setup_filter
@mode = (@options[:mode] || :accept).to_sym
@field = @options[:field].to_sym
# Convert the timestamp to the correct formats for quick timestamp comparisons
if @options[:value].kind_of?(String) && @options[:value][0, 1] == '/' && @options[:value][-1, 1] == '/'
@value = Regexp.new(@options[:value][1..-2])
else
@value = @options[:value] # TODO: convert value?
end
end
# Keep request if @mode == :select and request has the field and value.
# Drop request if @mode == :reject and request has the field and value.
# Returns nil otherwise.
# <tt>request</tt> Request Object
def filter(request)
found_field = request.every(@field).any? { |value| @value === value.to_s }
return nil if !found_field && @mode == :select
return nil if found_field && @mode == :reject
return request
end
end
end
Version data entries
47 entries across 47 versions & 2 rubygems