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# frozen_string_literal: true
require "http/form_data/readable"
require "uri"
require "stringio"
module HTTP
module FormData
# `application/x-www-form-urlencoded` form data.
class Urlencoded
include Readable
class << self
# Set custom form data encoder implementation.
#
# @example
#
# module CustomFormDataEncoder
# UNESCAPED_CHARS = /[^a-z0-9\-\.\_\~]/i
#
# def self.escape(s)
# ::URI::DEFAULT_PARSER.escape(s.to_s, UNESCAPED_CHARS)
# end
#
# def self.call(data)
# parts = []
#
# data.each do |k, v|
# k = escape(k)
#
# if v.nil?
# parts << k
# elsif v.respond_to?(:to_ary)
# v.to_ary.each { |vv| parts << "#{k}=#{escape vv}" }
# else
# parts << "#{k}=#{escape v}"
# end
# end
#
# parts.join("&")
# end
# end
#
# HTTP::FormData::Urlencoded.encoder = CustomFormDataEncoder
#
# @raise [ArgumentError] if implementation deos not responds to `#call`.
# @param implementation [#call]
# @return [void]
def encoder=(implementation)
raise ArgumentError unless implementation.respond_to? :call
@encoder = implementation
end
# Returns form data encoder implementation.
# Default: `URI.encode_www_form`.
#
# @see .encoder=
# @return [#call]
def encoder
@encoder ||= ::URI.method(:encode_www_form)
end
end
# @param [#to_h, Hash] data form data key-value Hash
def initialize(data, encoder: nil)
encoder ||= self.class.encoder
@io = StringIO.new(encoder.call(FormData.ensure_hash(data)))
end
# Returns MIME type to be used for HTTP request `Content-Type` header.
#
# @return [String]
def content_type
"application/x-www-form-urlencoded"
end
# Returns form data content size to be used for HTTP request
# `Content-Length` header.
#
# @return [Integer]
alias content_length size
end
end
end
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