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#encoding: us-ascii
require 'active_support/core_ext/object/json'
require 'active_support/core_ext/module/delegation'
require 'active_support/core_ext/big_decimal/conversions' # for #to_s
require 'active_support/core_ext/hash/except'
require 'active_support/core_ext/hash/slice'
require 'active_support/core_ext/object/instance_variables'
require 'active_support/core_ext/time/conversions'
require 'active_support/core_ext/date_time/conversions'
require 'active_support/core_ext/date/conversions'
require 'set'
module ActiveSupport
class << self
delegate :use_standard_json_time_format, :use_standard_json_time_format=,
:escape_html_entities_in_json, :escape_html_entities_in_json=,
:encode_big_decimal_as_string, :encode_big_decimal_as_string=,
:to => :'ActiveSupport::JSON::Encoding'
end
module JSON
# matches YAML-formatted dates
DATE_REGEX = /^(?:\d{4}-\d{2}-\d{2}|\d{4}-\d{1,2}-\d{1,2}[T \t]+\d{1,2}:\d{2}:\d{2}(\.[0-9]*)?(([ \t]*)Z|[-+]\d{2}?(:\d{2})?))$/
# Dumps objects in JSON (JavaScript Object Notation).
# See www.json.org for more info.
#
# ActiveSupport::JSON.encode({ team: 'rails', players: '36' })
# # => "{\"team\":\"rails\",\"players\":\"36\"}"
def self.encode(value, options = nil)
Encoding::Encoder.new(options).encode(value)
end
module Encoding #:nodoc:
class CircularReferenceError < StandardError; end
class Encoder
attr_reader :options
def initialize(options = nil)
@options = options || {}
@seen = Set.new
end
def encode(value, use_options = true)
check_for_circular_references(value) do
jsonified = use_options ? value.as_json(options_for(value)) : value.as_json
jsonified.encode_json(self)
end
end
# like encode, but only calls as_json, without encoding to string.
def as_json(value, use_options = true)
check_for_circular_references(value) do
use_options ? value.as_json(options_for(value)) : value.as_json
end
end
def options_for(value)
if value.is_a?(Array) || value.is_a?(Hash)
# hashes and arrays need to get encoder in the options, so that
# they can detect circular references.
options.merge(:encoder => self)
else
options.dup
end
end
def escape(string)
Encoding.escape(string)
end
private
def check_for_circular_references(value)
unless @seen.add?(value.__id__)
raise CircularReferenceError, 'object references itself'
end
yield
ensure
@seen.delete(value.__id__)
end
end
ESCAPED_CHARS = {
"\x00" => '\u0000', "\x01" => '\u0001', "\x02" => '\u0002',
"\x03" => '\u0003', "\x04" => '\u0004', "\x05" => '\u0005',
"\x06" => '\u0006', "\x07" => '\u0007', "\x0B" => '\u000B',
"\x0E" => '\u000E', "\x0F" => '\u000F', "\x10" => '\u0010',
"\x11" => '\u0011', "\x12" => '\u0012', "\x13" => '\u0013',
"\x14" => '\u0014', "\x15" => '\u0015', "\x16" => '\u0016',
"\x17" => '\u0017', "\x18" => '\u0018', "\x19" => '\u0019',
"\x1A" => '\u001A', "\x1B" => '\u001B', "\x1C" => '\u001C',
"\x1D" => '\u001D', "\x1E" => '\u001E', "\x1F" => '\u001F',
"\010" => '\b',
"\f" => '\f',
"\n" => '\n',
"\xe2\x80\xa8" => '\u2028',
"\xe2\x80\xa9" => '\u2029',
"\r" => '\r',
"\t" => '\t',
'"' => '\"',
'\\' => '\\\\',
'>' => '\u003E',
'<' => '\u003C',
'&' => '\u0026',
"#{0xe2.chr}#{0x80.chr}#{0xa8.chr}" => '\u2028',
"#{0xe2.chr}#{0x80.chr}#{0xa9.chr}" => '\u2029',
}
class << self
# If true, use ISO 8601 format for dates and times. Otherwise, fall back
# to the Active Support legacy format.
attr_accessor :use_standard_json_time_format
# If false, serializes BigDecimal objects as numeric instead of wrapping
# them in a string.
attr_accessor :encode_big_decimal_as_string
attr_accessor :escape_regex
attr_reader :escape_html_entities_in_json
def escape_html_entities_in_json=(value)
self.escape_regex = \
if @escape_html_entities_in_json = value
/\xe2\x80\xa8|\xe2\x80\xa9|[\x00-\x1F"\\><&]/
else
/\xe2\x80\xa8|\xe2\x80\xa9|[\x00-\x1F"\\]/
end
end
def escape(string)
string = string.encode(::Encoding::UTF_8, :undef => :replace).force_encoding(::Encoding::BINARY)
json = string.gsub(escape_regex) { |s| ESCAPED_CHARS[s] }
json = %("#{json}")
json.force_encoding(::Encoding::UTF_8)
json
end
end
self.use_standard_json_time_format = true
self.escape_html_entities_in_json = true
self.encode_big_decimal_as_string = true
end
end
end
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