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Bundle Ruby JSON implementation

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This commit is contained in:
Greg Brockman 2011-07-12 22:13:45 -07:00
parent d21463480d
commit 2473826b4c
8 changed files with 1561 additions and 2 deletions
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10
lib/stripe.rb
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@ -5,10 +5,16 @@ require 'cgi'
require 'set'
require 'rubygems'
require 'json'
require 'openssl'
require 'rest_client'
require File.expand_path('../stripe/version', __FILE__)
begin
require 'json'
rescue LoadError
require File.join(File.dirname(__FILE__), '../vendor/stripe-json/lib/json/pure')
end
require File.join(File.dirname(__FILE__), 'stripe/version')
module Stripe
@@ssl_bundle_path = File.join(File.dirname(__FILE__), 'data/ca-certificates.crt')

340
vendor/stripe-json/GPL vendored Normal file
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@ -0,0 +1,340 @@
GNU GENERAL PUBLIC LICENSE
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5
vendor/stripe-json/README vendored Normal file
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@ -0,0 +1,5 @@
stripe-json imported from f7f7889 of the Ruby JSON implementation at
https://github.com/flori/json.git
and is distributed under the GPLv2 license (see the LICENSE file).

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vendor/stripe-json/lib/json/common.rb vendored Normal file
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require File.join(File.dirname(__FILE__), 'version')
module JSON
class << self
# If _object_ is string-like parse the string and return the parsed result
# as a Ruby data structure. Otherwise generate a JSON text from the Ruby
# data structure object and return it.
#
# The _opts_ argument is passed through to generate/parse respectively, see
# generate and parse for their documentation.
def [](object, opts = {})
if object.respond_to? :to_str
JSON.parse(object.to_str, opts)
else
JSON.generate(object, opts)
end
end
# Returns the JSON parser class, that is used by JSON. This might be either
# JSON::Ext::Parser or JSON::Pure::Parser.
attr_reader :parser
# Set the JSON parser class _parser_ to be used by JSON.
def parser=(parser) # :nodoc:
@parser = parser
remove_const :Parser if JSON.const_defined_in?(self, :Parser)
const_set :Parser, parser
end
# Return the constant located at _path_. The format of _path_ has to be
# either ::A::B::C or A::B::C. In any case A has to be located at the top
# level (absolute namespace path?). If there doesn't exist a constant at
# the given path, an ArgumentError is raised.
def deep_const_get(path) # :nodoc:
path.to_s.split(/::/).inject(Object) do |p, c|
case
when c.empty? then p
when JSON.const_defined_in?(p, c) then p.const_get(c)
else
begin
p.const_missing(c)
rescue NameError => e
raise ArgumentError, "can't get const #{path}: #{e}"
end
end
end
end
# Set the module _generator_ to be used by JSON.
def generator=(generator) # :nodoc:
old, $VERBOSE = $VERBOSE, nil
@generator = generator
generator_methods = generator::GeneratorMethods
for const in generator_methods.constants
klass = deep_const_get(const)
modul = generator_methods.const_get(const)
klass.class_eval do
instance_methods(false).each do |m|
m.to_s == 'to_json' and remove_method m
end
include modul
end
end
self.state = generator::State
const_set :State, self.state
const_set :SAFE_STATE_PROTOTYPE, State.new
const_set :FAST_STATE_PROTOTYPE, State.new(
:indent => '',
:space => '',
:object_nl => "",
:array_nl => "",
:max_nesting => false
)
const_set :PRETTY_STATE_PROTOTYPE, State.new(
:indent => ' ',
:space => ' ',
:object_nl => "\n",
:array_nl => "\n"
)
ensure
$VERBOSE = old
end
# Returns the JSON generator modul, that is used by JSON. This might be
# either JSON::Ext::Generator or JSON::Pure::Generator.
attr_reader :generator
# Returns the JSON generator state class, that is used by JSON. This might
# be either JSON::Ext::Generator::State or JSON::Pure::Generator::State.
attr_accessor :state
# This is create identifier, that is used to decide, if the _json_create_
# hook of a class should be called. It defaults to 'json_class'.
attr_accessor :create_id
end
self.create_id = 'json_class'
NaN = 0.0/0
Infinity = 1.0/0
MinusInfinity = -Infinity
# The base exception for JSON errors.
class JSONError < StandardError; end
# This exception is raised, if a parser error occurs.
class ParserError < JSONError; end
# This exception is raised, if the nesting of parsed datastructures is too
# deep.
class NestingError < ParserError; end
# :stopdoc:
class CircularDatastructure < NestingError; end
# :startdoc:
# This exception is raised, if a generator or unparser error occurs.
class GeneratorError < JSONError; end
# For backwards compatibility
UnparserError = GeneratorError
# This exception is raised, if the required unicode support is missing on the
# system. Usually this means, that the iconv library is not installed.
class MissingUnicodeSupport < JSONError; end
module_function
# Parse the JSON document _source_ into a Ruby data structure and return it.
#
# _opts_ can have the following
# keys:
# * *max_nesting*: The maximum depth of nesting allowed in the parsed data
# structures. Disable depth checking with :max_nesting => false, it defaults
# to 19.
# * *allow_nan*: If set to true, allow NaN, Infinity and -Infinity in
# defiance of RFC 4627 to be parsed by the Parser. This option defaults
# to false.
# * *symbolize_names*: If set to true, returns symbols for the names
# (keys) in a JSON object. Otherwise strings are returned, which is also
# the default.
# * *create_additions*: If set to false, the Parser doesn't create
# additions even if a matchin class and create_id was found. This option
# defaults to true.
# * *object_class*: Defaults to Hash
# * *array_class*: Defaults to Array
def parse(source, opts = {})
Parser.new(source, opts).parse
end
# Parse the JSON document _source_ into a Ruby data structure and return it.
# The bang version of the parse method, defaults to the more dangerous values
# for the _opts_ hash, so be sure only to parse trusted _source_ documents.
#
# _opts_ can have the following keys:
# * *max_nesting*: The maximum depth of nesting allowed in the parsed data
# structures. Enable depth checking with :max_nesting => anInteger. The parse!
# methods defaults to not doing max depth checking: This can be dangerous,
# if someone wants to fill up your stack.
# * *allow_nan*: If set to true, allow NaN, Infinity, and -Infinity in
# defiance of RFC 4627 to be parsed by the Parser. This option defaults
# to true.
# * *create_additions*: If set to false, the Parser doesn't create
# additions even if a matchin class and create_id was found. This option
# defaults to true.
def parse!(source, opts = {})
opts = {
:max_nesting => false,
:allow_nan => true
}.update(opts)
Parser.new(source, opts).parse
end
# Generate a JSON document from the Ruby data structure _obj_ and return
# it. _state_ is * a JSON::State object,
# * or a Hash like object (responding to to_hash),
# * an object convertible into a hash by a to_h method,
# that is used as or to configure a State object.
#
# It defaults to a state object, that creates the shortest possible JSON text
# in one line, checks for circular data structures and doesn't allow NaN,
# Infinity, and -Infinity.
#
# A _state_ hash can have the following keys:
# * *indent*: a string used to indent levels (default: ''),
# * *space*: a string that is put after, a : or , delimiter (default: ''),
# * *space_before*: a string that is put before a : pair delimiter (default: ''),
# * *object_nl*: a string that is put at the end of a JSON object (default: ''),
# * *array_nl*: a string that is put at the end of a JSON array (default: ''),
# * *allow_nan*: true if NaN, Infinity, and -Infinity should be
# generated, otherwise an exception is thrown, if these values are
# encountered. This options defaults to false.
# * *max_nesting*: The maximum depth of nesting allowed in the data
# structures from which JSON is to be generated. Disable depth checking
# with :max_nesting => false, it defaults to 19.
#
# See also the fast_generate for the fastest creation method with the least
# amount of sanity checks, and the pretty_generate method for some
# defaults for a pretty output.
def generate(obj, opts = nil)
state = SAFE_STATE_PROTOTYPE.dup
if opts
if opts.respond_to? :to_hash
opts = opts.to_hash
elsif opts.respond_to? :to_h
opts = opts.to_h
else
raise TypeError, "can't convert #{opts.class} into Hash"
end
state = state.configure(opts)
end
state.generate(obj)
end
# :stopdoc:
# I want to deprecate these later, so I'll first be silent about them, and
# later delete them.
alias unparse generate
module_function :unparse
# :startdoc:
# Generate a JSON document from the Ruby data structure _obj_ and return it.
# This method disables the checks for circles in Ruby objects.
#
# *WARNING*: Be careful not to pass any Ruby data structures with circles as
# _obj_ argument, because this will cause JSON to go into an infinite loop.
def fast_generate(obj, opts = nil)
state = FAST_STATE_PROTOTYPE.dup
if opts
if opts.respond_to? :to_hash
opts = opts.to_hash
elsif opts.respond_to? :to_h
opts = opts.to_h
else
raise TypeError, "can't convert #{opts.class} into Hash"
end
state.configure(opts)
end
state.generate(obj)
end
# :stopdoc:
# I want to deprecate these later, so I'll first be silent about them, and later delete them.
alias fast_unparse fast_generate
module_function :fast_unparse
# :startdoc:
# Generate a JSON document from the Ruby data structure _obj_ and return it.
# The returned document is a prettier form of the document returned by
# #unparse.
#
# The _opts_ argument can be used to configure the generator, see the
# generate method for a more detailed explanation.
def pretty_generate(obj, opts = nil)
state = PRETTY_STATE_PROTOTYPE.dup
if opts
if opts.respond_to? :to_hash
opts = opts.to_hash
elsif opts.respond_to? :to_h
opts = opts.to_h
else
raise TypeError, "can't convert #{opts.class} into Hash"
end
state.configure(opts)
end
state.generate(obj)
end
# :stopdoc:
# I want to deprecate these later, so I'll first be silent about them, and later delete them.
alias pretty_unparse pretty_generate
module_function :pretty_unparse
# :startdoc:
# Load a ruby data structure from a JSON _source_ and return it. A source can
# either be a string-like object, an IO like object, or an object responding
# to the read method. If _proc_ was given, it will be called with any nested
# Ruby object as an argument recursively in depth first order.
#
# This method is part of the implementation of the load/dump interface of
# Marshal and YAML.
def load(source, proc = nil)
if source.respond_to? :to_str
source = source.to_str
elsif source.respond_to? :to_io
source = source.to_io.read
else
source = source.read
end
result = parse(source, :max_nesting => false, :allow_nan => true)
recurse_proc(result, &proc) if proc
result
end
# Recursively calls passed _Proc_ if the parsed data structure is an _Array_ or _Hash_
def recurse_proc(result, &proc)
case result
when Array
result.each { |x| recurse_proc x, &proc }
proc.call result
when Hash
result.each { |x, y| recurse_proc x, &proc; recurse_proc y, &proc }
proc.call result
else
proc.call result
end
end
alias restore load
module_function :restore
# Dumps _obj_ as a JSON string, i.e. calls generate on the object and returns
# the result.
#
# If anIO (an IO like object or an object that responds to the write method)
# was given, the resulting JSON is written to it.
#
# If the number of nested arrays or objects exceeds _limit_ an ArgumentError
# exception is raised. This argument is similar (but not exactly the
# same!) to the _limit_ argument in Marshal.dump.
#
# This method is part of the implementation of the load/dump interface of
# Marshal and YAML.
def dump(obj, anIO = nil, limit = nil)
if anIO and limit.nil?
anIO = anIO.to_io if anIO.respond_to?(:to_io)
unless anIO.respond_to?(:write)
limit = anIO
anIO = nil
end
end
limit ||= 0
result = generate(obj, :allow_nan => true, :max_nesting => limit)
if anIO
anIO.write result
anIO
else
result
end
rescue JSON::NestingError
raise ArgumentError, "exceed depth limit"
end
# Swap consecutive bytes of _string_ in place.
def self.swap!(string) # :nodoc:
0.upto(string.size / 2) do |i|
break unless string[2 * i + 1]
string[2 * i], string[2 * i + 1] = string[2 * i + 1], string[2 * i]
end
string
end
# Shortuct for iconv.
if ::String.method_defined?(:encode)
# Encodes string using Ruby's _String.encode_
def self.iconv(to, from, string)
string.encode(to, from)
end
else
require 'iconv'
# Encodes string using _iconv_ library
def self.iconv(to, from, string)
Iconv.conv(to, from, string)
end
end
if ::Object.method(:const_defined?).arity == 1
def self.const_defined_in?(modul, constant)
modul.const_defined?(constant)
end
else
def self.const_defined_in?(modul, constant)
modul.const_defined?(constant, false)
end
end
end
module ::Kernel
private
# Outputs _objs_ to STDOUT as JSON strings in the shortest form, that is in
# one line.
def j(*objs)
objs.each do |obj|
puts JSON::generate(obj, :allow_nan => true, :max_nesting => false)
end
nil
end
# Ouputs _objs_ to STDOUT as JSON strings in a pretty format, with
# indentation and over many lines.
def jj(*objs)
objs.each do |obj|
puts JSON::pretty_generate(obj, :allow_nan => true, :max_nesting => false)
end
nil
end
# If _object_ is string-like parse the string and return the parsed result as
# a Ruby data structure. Otherwise generate a JSON text from the Ruby data
# structure object and return it.
#
# The _opts_ argument is passed through to generate/parse respectively, see
# generate and parse for their documentation.
def JSON(object, *args)
if object.respond_to? :to_str
JSON.parse(object.to_str, args.first)
else
JSON.generate(object, args.first)
end
end
end
# Extends any Class to include _json_creatable?_ method.
class ::Class
# Returns true, if this class can be used to create an instance
# from a serialised JSON string. The class has to implement a class
# method _json_create_ that expects a hash as first parameter, which includes
# the required data.
def json_creatable?
respond_to?(:json_create)
end
end

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require File.join(File.dirname(__FILE__), 'common')
require File.join(File.dirname(__FILE__), 'pure/parser')
require File.join(File.dirname(__FILE__), 'pure/generator')
module JSON
# This module holds all the modules/classes that implement JSON's
# functionality in pure ruby.
module Pure
$DEBUG and warn "Using Pure library for JSON."
JSON.parser = Parser
JSON.generator = Generator
end
JSON_LOADED = true unless defined?(::JSON::JSON_LOADED)
end

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module JSON
MAP = {
"\x0" => '\u0000',
"\x1" => '\u0001',
"\x2" => '\u0002',
"\x3" => '\u0003',
"\x4" => '\u0004',
"\x5" => '\u0005',
"\x6" => '\u0006',
"\x7" => '\u0007',
"\b" => '\b',
"\t" => '\t',
"\n" => '\n',
"\xb" => '\u000b',
"\f" => '\f',
"\r" => '\r',
"\xe" => '\u000e',
"\xf" => '\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',
'"' => '\"',
'\\' => '\\\\',
} # :nodoc:
# Convert a UTF8 encoded Ruby string _string_ to a JSON string, encoded with
# UTF16 big endian characters as \u????, and return it.
if defined?(::Encoding)
def utf8_to_json(string) # :nodoc:
string = string.dup
string << '' # XXX workaround: avoid buffer sharing
string.force_encoding(::Encoding::ASCII_8BIT)
string.gsub!(/["\\\x0-\x1f]/) { MAP[$&] }
string.force_encoding(::Encoding::UTF_8)
string
end
def utf8_to_json_ascii(string) # :nodoc:
string = string.dup
string << '' # XXX workaround: avoid buffer sharing
string.force_encoding(::Encoding::ASCII_8BIT)
string.gsub!(/["\\\x0-\x1f]/) { MAP[$&] }
string.gsub!(/(
(?:
[\xc2-\xdf][\x80-\xbf] |
[\xe0-\xef][\x80-\xbf]{2} |
[\xf0-\xf4][\x80-\xbf]{3}
)+ |
[\x80-\xc1\xf5-\xff] # invalid
)/nx) { |c|
c.size == 1 and raise GeneratorError, "invalid utf8 byte: '#{c}'"
s = JSON.iconv('utf-16be', 'utf-8', c).unpack('H*')[0]
s.gsub!(/.{4}/n, '\\\\u\&')
}
string.force_encoding(::Encoding::UTF_8)
string
rescue => e
raise GeneratorError, "Caught #{e.class}: #{e}"
end
else
def utf8_to_json(string) # :nodoc:
string.gsub(/["\\\x0-\x1f]/) { MAP[$&] }
end
def utf8_to_json_ascii(string) # :nodoc:
string = string.gsub(/["\\\x0-\x1f]/) { MAP[$&] }
string.gsub!(/(
(?:
[\xc2-\xdf][\x80-\xbf] |
[\xe0-\xef][\x80-\xbf]{2} |
[\xf0-\xf4][\x80-\xbf]{3}
)+ |
[\x80-\xc1\xf5-\xff] # invalid
)/nx) { |c|
c.size == 1 and raise GeneratorError, "invalid utf8 byte: '#{c}'"
s = JSON.iconv('utf-16be', 'utf-8', c).unpack('H*')[0]
s.gsub!(/.{4}/n, '\\\\u\&')
}
string
rescue => e
raise GeneratorError, "Caught #{e.class}: #{e}"
end
end
module_function :utf8_to_json, :utf8_to_json_ascii
module Pure
module Generator
# This class is used to create State instances, that are use to hold data
# while generating a JSON text from a Ruby data structure.
class State
# Creates a State object from _opts_, which ought to be Hash to create
# a new State instance configured by _opts_, something else to create
# an unconfigured instance. If _opts_ is a State object, it is just
# returned.
def self.from_state(opts)
case
when self === opts
opts
when opts.respond_to?(:to_hash)
new(opts.to_hash)
when opts.respond_to?(:to_h)
new(opts.to_h)
else
SAFE_STATE_PROTOTYPE.dup
end
end
# Instantiates a new State object, configured by _opts_.
#
# _opts_ can have the following keys:
#
# * *indent*: a string used to indent levels (default: ''),
# * *space*: a string that is put after, a : or , delimiter (default: ''),
# * *space_before*: a string that is put before a : pair delimiter (default: ''),
# * *object_nl*: a string that is put at the end of a JSON object (default: ''),
# * *array_nl*: a string that is put at the end of a JSON array (default: ''),
# * *check_circular*: is deprecated now, use the :max_nesting option instead,
# * *max_nesting*: sets the maximum level of data structure nesting in
# the generated JSON, max_nesting = 0 if no maximum should be checked.
# * *allow_nan*: true if NaN, Infinity, and -Infinity should be
# generated, otherwise an exception is thrown, if these values are
# encountered. This options defaults to false.
def initialize(opts = {})
@indent = ''
@space = ''
@space_before = ''
@object_nl = ''
@array_nl = ''
@allow_nan = false
@ascii_only = false
configure opts
end
# This string is used to indent levels in the JSON text.
attr_accessor :indent
# This string is used to insert a space between the tokens in a JSON
# string.
attr_accessor :space
# This string is used to insert a space before the ':' in JSON objects.
attr_accessor :space_before
# This string is put at the end of a line that holds a JSON object (or
# Hash).
attr_accessor :object_nl
# This string is put at the end of a line that holds a JSON array.
attr_accessor :array_nl
# This integer returns the maximum level of data structure nesting in
# the generated JSON, max_nesting = 0 if no maximum is checked.
attr_accessor :max_nesting
# This integer returns the current depth data structure nesting in the
# generated JSON.
attr_accessor :depth
def check_max_nesting # :nodoc:
return if @max_nesting.zero?
current_nesting = depth + 1
current_nesting > @max_nesting and
raise NestingError, "nesting of #{current_nesting} is too deep"
end
# Returns true, if circular data structures are checked,
# otherwise returns false.
def check_circular?
!@max_nesting.zero?
end
# Returns true if NaN, Infinity, and -Infinity should be considered as
# valid JSON and output.
def allow_nan?
@allow_nan
end
def ascii_only?
@ascii_only
end
# Configure this State instance with the Hash _opts_, and return
# itself.
def configure(opts)
@indent = opts[:indent] if opts.key?(:indent)
@space = opts[:space] if opts.key?(:space)
@space_before = opts[:space_before] if opts.key?(:space_before)
@object_nl = opts[:object_nl] if opts.key?(:object_nl)
@array_nl = opts[:array_nl] if opts.key?(:array_nl)
@allow_nan = !!opts[:allow_nan] if opts.key?(:allow_nan)
@ascii_only = opts[:ascii_only] if opts.key?(:ascii_only)
@depth = opts[:depth] || 0
if !opts.key?(:max_nesting) # defaults to 19
@max_nesting = 19
elsif opts[:max_nesting]
@max_nesting = opts[:max_nesting]
else
@max_nesting = 0
end
self
end
alias merge configure
# Returns the configuration instance variables as a hash, that can be
# passed to the configure method.
def to_h
result = {}
for iv in %w[indent space space_before object_nl array_nl allow_nan max_nesting ascii_only depth]
result[iv.intern] = instance_variable_get("@#{iv}")
end
result
end
# Generates a valid JSON document from object +obj+ and returns the
# result. If no valid JSON document can be created this method raises a
# GeneratorError exception.
def generate(obj)
result = obj.to_json(self)
if result !~ /\A\s*(?:\[.*\]|\{.*\})\s*\Z/m
raise GeneratorError, "only generation of JSON objects or arrays allowed"
end
result
end
# Return the value returned by method +name+.
def [](name)
__send__ name
end
end
module GeneratorMethods
module Object
# Converts this object to a string (calling #to_s), converts
# it to a JSON string, and returns the result. This is a fallback, if no
# special method #to_json was defined for some object.
def to_json(*) to_s.to_json end
end
module Hash
# Returns a JSON string containing a JSON object, that is unparsed from
# this Hash instance.
# _state_ is a JSON::State object, that can also be used to configure the
# produced JSON string output further.
# _depth_ is used to find out nesting depth, to indent accordingly.
def to_json(state = nil, *)
state = State.from_state(state)
state.check_max_nesting
json_transform(state)
end
private
def json_shift(state)
state.object_nl.empty? or return ''
state.indent * state.depth
end
def json_transform(state)
delim = ','
delim << state.object_nl
result = '{'
result << state.object_nl
depth = state.depth += 1
first = true
indent = !state.object_nl.empty?
each { |key,value|
result << delim unless first
result << state.indent * depth if indent
result << key.to_s.to_json(state)
result << state.space_before
result << ':'
result << state.space
result << value.to_json(state)
first = false
}
depth = state.depth -= 1
result << state.object_nl
result << state.indent * depth if indent if indent
result << '}'
result
end
end
module Array
# Returns a JSON string containing a JSON array, that is unparsed from
# this Array instance.
# _state_ is a JSON::State object, that can also be used to configure the
# produced JSON string output further.
def to_json(state = nil, *)
state = State.from_state(state)
state.check_max_nesting
json_transform(state)
end
private
def json_transform(state)
delim = ','
delim << state.array_nl
result = '['
result << state.array_nl
depth = state.depth += 1
first = true
indent = !state.array_nl.empty?
each { |value|
result << delim unless first
result << state.indent * depth if indent
result << value.to_json(state)
first = false
}
depth = state.depth -= 1
result << state.array_nl
result << state.indent * depth if indent
result << ']'
end
end
module Integer
# Returns a JSON string representation for this Integer number.
def to_json(*) to_s end
end
module Float
# Returns a JSON string representation for this Float number.
def to_json(state = nil, *)
state = State.from_state(state)
case
when infinite?
if state.allow_nan?
to_s
else
raise GeneratorError, "#{self} not allowed in JSON"
end
when nan?
if state.allow_nan?
to_s
else
raise GeneratorError, "#{self} not allowed in JSON"
end
else
to_s
end
end
end
module String
if defined?(::Encoding)
# This string should be encoded with UTF-8 A call to this method
# returns a JSON string encoded with UTF16 big endian characters as
# \u????.
def to_json(state = nil, *args)
state = State.from_state(state)
if encoding == ::Encoding::UTF_8
string = self
else
string = encode(::Encoding::UTF_8)
end
if state.ascii_only?
'"' << JSON.utf8_to_json_ascii(string) << '"'
else
'"' << JSON.utf8_to_json(string) << '"'
end
end
else
# This string should be encoded with UTF-8 A call to this method
# returns a JSON string encoded with UTF16 big endian characters as
# \u????.
def to_json(state = nil, *args)
state = State.from_state(state)
if state.ascii_only?
'"' << JSON.utf8_to_json_ascii(self) << '"'
else
'"' << JSON.utf8_to_json(self) << '"'
end
end
end
# Module that holds the extinding methods if, the String module is
# included.
module Extend
# Raw Strings are JSON Objects (the raw bytes are stored in an
# array for the key "raw"). The Ruby String can be created by this
# module method.
def json_create(o)
o['raw'].pack('C*')
end
end
# Extends _modul_ with the String::Extend module.
def self.included(modul)
modul.extend Extend
end
# This method creates a raw object hash, that can be nested into
# other data structures and will be unparsed as a raw string. This
# method should be used, if you want to convert raw strings to JSON
# instead of UTF-8 strings, e. g. binary data.
def to_json_raw_object
{
JSON.create_id => self.class.name,
'raw' => self.unpack('C*'),
}
end
# This method creates a JSON text from the result of
# a call to to_json_raw_object of this String.
def to_json_raw(*args)
to_json_raw_object.to_json(*args)
end
end
module TrueClass
# Returns a JSON string for true: 'true'.
def to_json(*) 'true' end
end
module FalseClass
# Returns a JSON string for false: 'false'.
def to_json(*) 'false' end
end
module NilClass
# Returns a JSON string for nil: 'null'.
def to_json(*) 'null' end
end
end
end
end
end

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require 'strscan'
module JSON
module Pure
# This class implements the JSON parser that is used to parse a JSON string
# into a Ruby data structure.
class Parser < StringScanner
STRING = /" ((?:[^\x0-\x1f"\\] |
# escaped special characters:
\\["\\\/bfnrt] |
\\u[0-9a-fA-F]{4} |
# match all but escaped special characters:
\\[\x20-\x21\x23-\x2e\x30-\x5b\x5d-\x61\x63-\x65\x67-\x6d\x6f-\x71\x73\x75-\xff])*)
"/nx
INTEGER = /(-?0|-?[1-9]\d*)/
FLOAT = /(-?
(?:0|[1-9]\d*)
(?:
\.\d+(?i:e[+-]?\d+) |
\.\d+ |
(?i:e[+-]?\d+)
)
)/x
NAN = /NaN/
INFINITY = /Infinity/
MINUS_INFINITY = /-Infinity/
OBJECT_OPEN = /\{/
OBJECT_CLOSE = /\}/
ARRAY_OPEN = /\[/
ARRAY_CLOSE = /\]/
PAIR_DELIMITER = /:/
COLLECTION_DELIMITER = /,/
TRUE = /true/
FALSE = /false/
NULL = /null/
IGNORE = %r(
(?:
//[^\n\r]*[\n\r]| # line comments
/\* # c-style comments
(?:
[^*/]| # normal chars
/[^*]| # slashes that do not start a nested comment
\*[^/]| # asterisks that do not end this comment
/(?=\*/) # single slash before this comment's end
)*
\*/ # the End of this comment
|[ \t\r\n]+ # whitespaces: space, horicontal tab, lf, cr
)+
)mx
UNPARSED = Object.new
# Creates a new JSON::Pure::Parser instance for the string _source_.
#
# It will be configured by the _opts_ hash. _opts_ can have the following
# keys:
# * *max_nesting*: The maximum depth of nesting allowed in the parsed data
# structures. Disable depth checking with :max_nesting => false|nil|0,
# it defaults to 19.
# * *allow_nan*: If set to true, allow NaN, Infinity and -Infinity in
# defiance of RFC 4627 to be parsed by the Parser. This option defaults
# to false.
# * *symbolize_names*: If set to true, returns symbols for the names
# (keys) in a JSON object. Otherwise strings are returned, which is also
# the default.
# * *create_additions*: If set to false, the Parser doesn't create
# additions even if a matchin class and create_id was found. This option
# defaults to true.
# * *object_class*: Defaults to Hash
# * *array_class*: Defaults to Array
def initialize(source, opts = {})
opts ||= {}
if defined?(::Encoding)
if source.encoding == ::Encoding::ASCII_8BIT
b = source[0, 4].bytes.to_a
source = case
when b.size >= 4 && b[0] == 0 && b[1] == 0 && b[2] == 0
source.dup.force_encoding(::Encoding::UTF_32BE).encode!(::Encoding::UTF_8)
when b.size >= 4 && b[0] == 0 && b[2] == 0
source.dup.force_encoding(::Encoding::UTF_16BE).encode!(::Encoding::UTF_8)
when b.size >= 4 && b[1] == 0 && b[2] == 0 && b[3] == 0
source.dup.force_encoding(::Encoding::UTF_32LE).encode!(::Encoding::UTF_8)
when b.size >= 4 && b[1] == 0 && b[3] == 0
source.dup.force_encoding(::Encoding::UTF_16LE).encode!(::Encoding::UTF_8)
else
source.dup
end
else
source = source.encode(::Encoding::UTF_8)
end
source.force_encoding(::Encoding::ASCII_8BIT)
else
b = source
source = case
when b.size >= 4 && b[0] == 0 && b[1] == 0 && b[2] == 0
JSON.iconv('utf-8', 'utf-32be', b)
when b.size >= 4 && b[0] == 0 && b[2] == 0
JSON.iconv('utf-8', 'utf-16be', b)
when b.size >= 4 && b[1] == 0 && b[2] == 0 && b[3] == 0
JSON.iconv('utf-8', 'utf-32le', b)
when b.size >= 4 && b[1] == 0 && b[3] == 0
JSON.iconv('utf-8', 'utf-16le', b)
else
b
end
end
super source
if !opts.key?(:max_nesting) # defaults to 19
@max_nesting = 19
elsif opts[:max_nesting]
@max_nesting = opts[:max_nesting]
else
@max_nesting = 0
end
@allow_nan = !!opts[:allow_nan]
@symbolize_names = !!opts[:symbolize_names]
@create_additions = opts.key?(:create_additions) ? !!opts[:create_additions] : true
@create_id = opts[:create_id] || JSON.create_id
@object_class = opts[:object_class] || Hash
@array_class = opts[:array_class] || Array
@match_string = opts[:match_string]
end
alias source string
# Parses the current JSON string _source_ and returns the complete data
# structure as a result.
def parse
reset
obj = nil
until eos?
case
when scan(OBJECT_OPEN)
obj and raise ParserError, "source '#{peek(20)}' not in JSON!"
@current_nesting = 1
obj = parse_object
when scan(ARRAY_OPEN)
obj and raise ParserError, "source '#{peek(20)}' not in JSON!"
@current_nesting = 1
obj = parse_array
when skip(IGNORE)
;
else
raise ParserError, "source '#{peek(20)}' not in JSON!"
end
end
obj or raise ParserError, "source did not contain any JSON!"
obj
end
private
# Unescape characters in strings.
UNESCAPE_MAP = Hash.new { |h, k| h[k] = k.chr }
UNESCAPE_MAP.update({
?" => '"',
?\\ => '\\',
?/ => '/',
?b => "\b",
?f => "\f",
?n => "\n",
?r => "\r",
?t => "\t",
?u => nil,
})
EMPTY_8BIT_STRING = ''
if ::String.method_defined?(:encode)
EMPTY_8BIT_STRING.force_encoding Encoding::ASCII_8BIT
end
def parse_string
if scan(STRING)
return '' if self[1].empty?
string = self[1].gsub(%r((?:\\[\\bfnrt"/]|(?:\\u(?:[A-Fa-f\d]{4}))+|\\[\x20-\xff]))n) do |c|
if u = UNESCAPE_MAP[$&[1]]
u
else # \uXXXX
bytes = EMPTY_8BIT_STRING.dup
i = 0
while c[6 * i] == ?\\ && c[6 * i + 1] == ?u
bytes << c[6 * i + 2, 2].to_i(16) << c[6 * i + 4, 2].to_i(16)
i += 1
end
JSON.iconv('utf-8', 'utf-16be', bytes)
end
end
if string.respond_to?(:force_encoding)
string.force_encoding(::Encoding::UTF_8)
end
if @create_additions and @match_string
for (regexp, klass) in @match_string
klass.json_creatable? or next
string =~ regexp and return klass.json_create(string)
end
end
string
else
UNPARSED
end
rescue => e
raise ParserError, "Caught #{e.class} at '#{peek(20)}': #{e}"
end
def parse_value
case
when scan(FLOAT)
Float(self[1])
when scan(INTEGER)
Integer(self[1])
when scan(TRUE)
true
when scan(FALSE)
false
when scan(NULL)
nil
when (string = parse_string) != UNPARSED
string
when scan(ARRAY_OPEN)
@current_nesting += 1
ary = parse_array
@current_nesting -= 1
ary
when scan(OBJECT_OPEN)
@current_nesting += 1
obj = parse_object
@current_nesting -= 1
obj
when @allow_nan && scan(NAN)
NaN
when @allow_nan && scan(INFINITY)
Infinity
when @allow_nan && scan(MINUS_INFINITY)
MinusInfinity
else
UNPARSED
end
end
def parse_array
raise NestingError, "nesting of #@current_nesting is too deep" if
@max_nesting.nonzero? && @current_nesting > @max_nesting
result = @array_class.new
delim = false
until eos?
case
when (value = parse_value) != UNPARSED
delim = false
result << value
skip(IGNORE)
if scan(COLLECTION_DELIMITER)
delim = true
elsif match?(ARRAY_CLOSE)
;
else
raise ParserError, "expected ',' or ']' in array at '#{peek(20)}'!"
end
when scan(ARRAY_CLOSE)
if delim
raise ParserError, "expected next element in array at '#{peek(20)}'!"
end
break
when skip(IGNORE)
;
else
raise ParserError, "unexpected token in array at '#{peek(20)}'!"
end
end
result
end
def parse_object
raise NestingError, "nesting of #@current_nesting is too deep" if
@max_nesting.nonzero? && @current_nesting > @max_nesting
result = @object_class.new
delim = false
until eos?
case
when (string = parse_string) != UNPARSED
skip(IGNORE)
unless scan(PAIR_DELIMITER)
raise ParserError, "expected ':' in object at '#{peek(20)}'!"
end
skip(IGNORE)
unless (value = parse_value).equal? UNPARSED
result[@symbolize_names ? string.to_sym : string] = value
delim = false
skip(IGNORE)
if scan(COLLECTION_DELIMITER)
delim = true
elsif match?(OBJECT_CLOSE)
;
else
raise ParserError, "expected ',' or '}' in object at '#{peek(20)}'!"
end
else
raise ParserError, "expected value in object at '#{peek(20)}'!"
end
when scan(OBJECT_CLOSE)
if delim
raise ParserError, "expected next name, value pair in object at '#{peek(20)}'!"
end
if @create_additions and klassname = result[@create_id]
klass = JSON.deep_const_get klassname
break unless klass and klass.json_creatable?
result = klass.json_create(result)
end
break
when skip(IGNORE)
;
else
raise ParserError, "unexpected token in object at '#{peek(20)}'!"
end
end
result
end
end
end
end

8
vendor/stripe-json/lib/json/version.rb vendored Normal file
View File

@ -0,0 +1,8 @@
module JSON
# JSON version
VERSION = '1.5.4'
VERSION_ARRAY = VERSION.split(/\./).map { |x| x.to_i } # :nodoc:
VERSION_MAJOR = VERSION_ARRAY[0] # :nodoc:
VERSION_MINOR = VERSION_ARRAY[1] # :nodoc:
VERSION_BUILD = VERSION_ARRAY[2] # :nodoc:
end