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# frozen_string_literal: true
#--
# = uri/common.rb
#
# Author:: Akira Yamada <akira@ruby-lang.org>
# License::
# You can redistribute it and/or modify it under the same term as Ruby.
#
# See URI for general documentation
#
require_relative "rfc2396_parser"
require_relative "rfc3986_parser"
module URI
include RFC2396_REGEXP
REGEXP = RFC2396_REGEXP
Parser = RFC2396_Parser
RFC3986_PARSER = RFC3986_Parser.new
Ractor.make_shareable(RFC3986_PARSER) if defined?(Ractor)
# URI::Parser.new
DEFAULT_PARSER = Parser.new
DEFAULT_PARSER.pattern.each_pair do |sym, str|
unless REGEXP::PATTERN.const_defined?(sym)
REGEXP::PATTERN.const_set(sym, str)
end
end
DEFAULT_PARSER.regexp.each_pair do |sym, str|
const_set(sym, str)
end
Ractor.make_shareable(DEFAULT_PARSER) if defined?(Ractor)
module Util # :nodoc:
def make_components_hash(klass, array_hash)
tmp = {}
if array_hash.kind_of?(Array) &&
array_hash.size == klass.component.size - 1
klass.component[1..-1].each_index do |i|
begin
tmp[klass.component[i + 1]] = array_hash[i].clone
rescue TypeError
tmp[klass.component[i + 1]] = array_hash[i]
end
end
elsif array_hash.kind_of?(Hash)
array_hash.each do |key, value|
begin
tmp[key] = value.clone
rescue TypeError
tmp[key] = value
end
end
else
raise ArgumentError,
"expected Array of or Hash of components of #{klass} (#{klass.component[1..-1].join(', ')})"
end
tmp[:scheme] = klass.to_s.sub(/\A.*::/, '').downcase
return tmp
end
module_function :make_components_hash
end
module Schemes
end
private_constant :Schemes
# Registers the given +klass+ as the class to be instantiated
# when parsing a \URI with the given +scheme+:
#
# URI.register_scheme('MS_SEARCH', URI::Generic) # => URI::Generic
# URI.scheme_list['MS_SEARCH'] # => URI::Generic
#
# Note that after calling String#upcase on +scheme+, it must be a valid
# constant name.
def self.register_scheme(scheme, klass)
Schemes.const_set(scheme.to_s.upcase, klass)
end
# Returns a hash of the defined schemes:
#
# URI.scheme_list
# # =>
# {"MAILTO"=>URI::MailTo,
# "LDAPS"=>URI::LDAPS,
# "WS"=>URI::WS,
# "HTTP"=>URI::HTTP,
# "HTTPS"=>URI::HTTPS,
# "LDAP"=>URI::LDAP,
# "FILE"=>URI::File,
# "FTP"=>URI::FTP}
#
# Related: URI.register_scheme.
def self.scheme_list
Schemes.constants.map { |name|
[name.to_s.upcase, Schemes.const_get(name)]
}.to_h
end
INITIAL_SCHEMES = scheme_list
private_constant :INITIAL_SCHEMES
Ractor.make_shareable(INITIAL_SCHEMES) if defined?(Ractor)
# Returns a new object constructed from the given +scheme+, +arguments+,
# and +default+:
#
# - The new object is an instance of <tt>URI.scheme_list[scheme.upcase]</tt>.
# - The object is initialized by calling the class initializer
# using +scheme+ and +arguments+.
# See URI::Generic.new.
#
# Examples:
#
# values = ['john.doe', 'www.example.com', '123', nil, '/forum/questions/', nil, 'tag=networking&order=newest', 'top']
# URI.for('https', *values)
# # => #<URI::HTTPS https://john.doe@www.example.com:123/forum/questions/?tag=networking&order=newest#top>
# URI.for('foo', *values, default: URI::HTTP)
# # => #<URI::HTTP foo://john.doe@www.example.com:123/forum/questions/?tag=networking&order=newest#top>
#
def self.for(scheme, *arguments, default: Generic)
const_name = scheme.to_s.upcase
uri_class = INITIAL_SCHEMES[const_name]
uri_class ||= if /\A[A-Z]\w*\z/.match?(const_name) && Schemes.const_defined?(const_name, false)
Schemes.const_get(const_name, false)
end
uri_class ||= default
return uri_class.new(scheme, *arguments)
end
#
# Base class for all URI exceptions.
#
class Error < StandardError; end
#
# Not a URI.
#
class InvalidURIError < Error; end
#
# Not a URI component.
#
class InvalidComponentError < Error; end
#
# URI is valid, bad usage is not.
#
class BadURIError < Error; end
# Returns a 9-element array representing the parts of the \URI
# formed from the string +uri+;
# each array element is a string or +nil+:
#
# names = %w[scheme userinfo host port registry path opaque query fragment]
# values = URI.split('https://john.doe@www.example.com:123/forum/questions/?tag=networking&order=newest#top')
# names.zip(values)
# # =>
# [["scheme", "https"],
# ["userinfo", "john.doe"],
# ["host", "www.example.com"],
# ["port", "123"],
# ["registry", nil],
# ["path", "/forum/questions/"],
# ["opaque", nil],
# ["query", "tag=networking&order=newest"],
# ["fragment", "top"]]
#
def self.split(uri)
RFC3986_PARSER.split(uri)
end
# Returns a new \URI object constructed from the given string +uri+:
#
# URI.parse('https://john.doe@www.example.com:123/forum/questions/?tag=networking&order=newest#top')
# # => #<URI::HTTPS https://john.doe@www.example.com:123/forum/questions/?tag=networking&order=newest#top>
# URI.parse('http://john.doe@www.example.com:123/forum/questions/?tag=networking&order=newest#top')
# # => #<URI::HTTP http://john.doe@www.example.com:123/forum/questions/?tag=networking&order=newest#top>
#
# It's recommended to first ::escape string +uri+
# if it may contain invalid URI characters.
#
def self.parse(uri)
RFC3986_PARSER.parse(uri)
end
# Merges the given URI strings +str+
# per {RFC 2396}[https://www.rfc-editor.org/rfc/rfc2396.html].
#
# Each string in +str+ is converted to an
# {RFC3986 URI}[https://www.rfc-editor.org/rfc/rfc3986.html] before being merged.
#
# Examples:
#
# URI.join("http://example.com/","main.rbx")
# # => #<URI::HTTP http://example.com/main.rbx>
#
# URI.join('http://example.com', 'foo')
# # => #<URI::HTTP http://example.com/foo>
#
# URI.join('http://example.com', '/foo', '/bar')
# # => #<URI::HTTP http://example.com/bar>
#
# URI.join('http://example.com', '/foo', 'bar')
# # => #<URI::HTTP http://example.com/bar>
#
# URI.join('http://example.com', '/foo/', 'bar')
# # => #<URI::HTTP http://example.com/foo/bar>
#
def self.join(*str)
RFC3986_PARSER.join(*str)
end
#
# == Synopsis
#
# URI::extract(str[, schemes][,&blk])
#
# == Args
#
# +str+::
# String to extract URIs from.
# +schemes+::
# Limit URI matching to specific schemes.
#
# == Description
#
# Extracts URIs from a string. If block given, iterates through all matched URIs.
# Returns nil if block given or array with matches.
#
# == Usage
#
# require "uri"
#
# URI.extract("text here http://foo.example.org/bla and here mailto:test@example.com and here also.")
# # => ["http://foo.example.com/bla", "mailto:test@example.com"]
#
def self.extract(str, schemes = nil, &block) # :nodoc:
warn "URI.extract is obsolete", uplevel: 1 if $VERBOSE
DEFAULT_PARSER.extract(str, schemes, &block)
end
#
# == Synopsis
#
# URI::regexp([match_schemes])
#
# == Args
#
# +match_schemes+::
# Array of schemes. If given, resulting regexp matches to URIs
# whose scheme is one of the match_schemes.
#
# == Description
#
# Returns a Regexp object which matches to URI-like strings.
# The Regexp object returned by this method includes arbitrary
# number of capture group (parentheses). Never rely on its number.
#
# == Usage
#
# require 'uri'
#
# # extract first URI from html_string
# html_string.slice(URI.regexp)
#
# # remove ftp URIs
# html_string.sub(URI.regexp(['ftp']), '')
#
# # You should not rely on the number of parentheses
# html_string.scan(URI.regexp) do |*matches|
# p $&
# end
#
def self.regexp(schemes = nil)# :nodoc:
warn "URI.regexp is obsolete", uplevel: 1 if $VERBOSE
DEFAULT_PARSER.make_regexp(schemes)
end
TBLENCWWWCOMP_ = {} # :nodoc:
256.times do |i|
TBLENCWWWCOMP_[-i.chr] = -('%%%02X' % i)
end
TBLENCURICOMP_ = TBLENCWWWCOMP_.dup.freeze
TBLENCWWWCOMP_[' '] = '+'
TBLENCWWWCOMP_.freeze
TBLDECWWWCOMP_ = {} # :nodoc:
256.times do |i|
h, l = i>>4, i&15
TBLDECWWWCOMP_[-('%%%X%X' % [h, l])] = -i.chr
TBLDECWWWCOMP_[-('%%%x%X' % [h, l])] = -i.chr
TBLDECWWWCOMP_[-('%%%X%x' % [h, l])] = -i.chr
TBLDECWWWCOMP_[-('%%%x%x' % [h, l])] = -i.chr
end
TBLDECWWWCOMP_['+'] = ' '
TBLDECWWWCOMP_.freeze
# Returns a URL-encoded string derived from the given string +str+.
#
# The returned string:
#
# - Preserves:
#
# - Characters <tt>'*'</tt>, <tt>'.'</tt>, <tt>'-'</tt>, and <tt>'_'</tt>.
# - Character in ranges <tt>'a'..'z'</tt>, <tt>'A'..'Z'</tt>,
# and <tt>'0'..'9'</tt>.
#
# Example:
#
# URI.encode_www_form_component('*.-_azAZ09')
# # => "*.-_azAZ09"
#
# - Converts:
#
# - Character <tt>' '</tt> to character <tt>'+'</tt>.
# - Any other character to "percent notation";
# the percent notation for character <i>c</i> is <tt>'%%%X' % c.ord</tt>.
#
# Example:
#
# URI.encode_www_form_component('Here are some punctuation characters: ,;?:')
# # => "Here+are+some+punctuation+characters%3A+%2C%3B%3F%3A"
#
# Encoding:
#
# - If +str+ has encoding Encoding::ASCII_8BIT, argument +enc+ is ignored.
# - Otherwise +str+ is converted first to Encoding::UTF_8
# (with suitable character replacements),
# and then to encoding +enc+.
#
# In either case, the returned string has forced encoding Encoding::US_ASCII.
#
# Related: URI.encode_uri_component (encodes <tt>' '</tt> as <tt>'%20'</tt>).
def self.encode_www_form_component(str, enc=nil)
_encode_uri_component(/[^*\-.0-9A-Z_a-z]/, TBLENCWWWCOMP_, str, enc)
end
# Returns a string decoded from the given \URL-encoded string +str+.
#
# The given string is first encoded as Encoding::ASCII-8BIT (using String#b),
# then decoded (as below), and finally force-encoded to the given encoding +enc+.
#
# The returned string:
#
# - Preserves:
#
# - Characters <tt>'*'</tt>, <tt>'.'</tt>, <tt>'-'</tt>, and <tt>'_'</tt>.
# - Character in ranges <tt>'a'..'z'</tt>, <tt>'A'..'Z'</tt>,
# and <tt>'0'..'9'</tt>.
#
# Example:
#
# URI.decode_www_form_component('*.-_azAZ09')
# # => "*.-_azAZ09"
#
# - Converts:
#
# - Character <tt>'+'</tt> to character <tt>' '</tt>.
# - Each "percent notation" to an ASCII character.
#
# Example:
#
# URI.decode_www_form_component('Here+are+some+punctuation+characters%3A+%2C%3B%3F%3A')
# # => "Here are some punctuation characters: ,;?:"
#
# Related: URI.decode_uri_component (preserves <tt>'+'</tt>).
def self.decode_www_form_component(str, enc=Encoding::UTF_8)
_decode_uri_component(/\+|%\h\h/, str, enc)
end
# Like URI.encode_www_form_component, except that <tt>' '</tt> (space)
# is encoded as <tt>'%20'</tt> (instead of <tt>'+'</tt>).
def self.encode_uri_component(str, enc=nil)
_encode_uri_component(/[^*\-.0-9A-Z_a-z]/, TBLENCURICOMP_, str, enc)
end
# Like URI.decode_www_form_component, except that <tt>'+'</tt> is preserved.
def self.decode_uri_component(str, enc=Encoding::UTF_8)
_decode_uri_component(/%\h\h/, str, enc)
end
def self._encode_uri_component(regexp, table, str, enc)
str = str.to_s.dup
if str.encoding != Encoding::ASCII_8BIT
if enc && enc != Encoding::ASCII_8BIT
str.encode!(Encoding::UTF_8, invalid: :replace, undef: :replace)
str.encode!(enc, fallback: ->(x){"&##{x.ord};"})
end
str.force_encoding(Encoding::ASCII_8BIT)
end
str.gsub!(regexp, table)
str.force_encoding(Encoding::US_ASCII)
end
private_class_method :_encode_uri_component
def self._decode_uri_component(regexp, str, enc)
raise ArgumentError, "invalid %-encoding (#{str})" if /%(?!\h\h)/.match?(str)
str.b.gsub(regexp, TBLDECWWWCOMP_).force_encoding(enc)
end
private_class_method :_decode_uri_component
# Returns a URL-encoded string derived from the given
# {Enumerable}[rdoc-ref:Enumerable@Enumerable+in+Ruby+Classes]
# +enum+.
#
# The result is suitable for use as form data
# for an \HTTP request whose <tt>Content-Type</tt> is
# <tt>'application/x-www-form-urlencoded'</tt>.
#
# The returned string consists of the elements of +enum+,
# each converted to one or more URL-encoded strings,
# and all joined with character <tt>'&'</tt>.
#
# Simple examples:
#
# URI.encode_www_form([['foo', 0], ['bar', 1], ['baz', 2]])
# # => "foo=0&bar=1&baz=2"
# URI.encode_www_form({foo: 0, bar: 1, baz: 2})
# # => "foo=0&bar=1&baz=2"
#
# The returned string is formed using method URI.encode_www_form_component,
# which converts certain characters:
#
# URI.encode_www_form('f#o': '/', 'b-r': '$', 'b z': '@')
# # => "f%23o=%2F&b-r=%24&b+z=%40"
#
# When +enum+ is Array-like, each element +ele+ is converted to a field:
#
# - If +ele+ is an array of two or more elements,
# the field is formed from its first two elements
# (and any additional elements are ignored):
#
# name = URI.encode_www_form_component(ele[0], enc)
# value = URI.encode_www_form_component(ele[1], enc)
# "#{name}=#{value}"
#
# Examples:
#
# URI.encode_www_form([%w[foo bar], %w[baz bat bah]])
# # => "foo=bar&baz=bat"
# URI.encode_www_form([['foo', 0], ['bar', :baz, 'bat']])
# # => "foo=0&bar=baz"
#
# - If +ele+ is an array of one element,
# the field is formed from <tt>ele[0]</tt>:
#
# URI.encode_www_form_component(ele[0])
#
# Example:
#
# URI.encode_www_form([['foo'], [:bar], [0]])
# # => "foo&bar&0"
#
# - Otherwise the field is formed from +ele+:
#
# URI.encode_www_form_component(ele)
#
# Example:
#
# URI.encode_www_form(['foo', :bar, 0])
# # => "foo&bar&0"
#
# The elements of an Array-like +enum+ may be mixture:
#
# URI.encode_www_form([['foo', 0], ['bar', 1, 2], ['baz'], :bat])
# # => "foo=0&bar=1&baz&bat"
#
# When +enum+ is Hash-like,
# each +key+/+value+ pair is converted to one or more fields:
#
# - If +value+ is
# {Array-convertible}[rdoc-ref:implicit_conversion.rdoc@Array-Convertible+Objects],
# each element +ele+ in +value+ is paired with +key+ to form a field:
#
# name = URI.encode_www_form_component(key, enc)
# value = URI.encode_www_form_component(ele, enc)
# "#{name}=#{value}"
#
# Example:
#
# URI.encode_www_form({foo: [:bar, 1], baz: [:bat, :bam, 2]})
# # => "foo=bar&foo=1&baz=bat&baz=bam&baz=2"
#
# - Otherwise, +key+ and +value+ are paired to form a field:
#
# name = URI.encode_www_form_component(key, enc)
# value = URI.encode_www_form_component(value, enc)
# "#{name}=#{value}"
#
# Example:
#
# URI.encode_www_form({foo: 0, bar: 1, baz: 2})
# # => "foo=0&bar=1&baz=2"
#
# The elements of a Hash-like +enum+ may be mixture:
#
# URI.encode_www_form({foo: [0, 1], bar: 2})
# # => "foo=0&foo=1&bar=2"
#
def self.encode_www_form(enum, enc=nil)
enum.map do |k,v|
if v.nil?
encode_www_form_component(k, enc)
elsif v.respond_to?(:to_ary)
v.to_ary.map do |w|
str = encode_www_form_component(k, enc)
unless w.nil?
str << '='
str << encode_www_form_component(w, enc)
end
end.join('&')
else
str = encode_www_form_component(k, enc)
str << '='
str << encode_www_form_component(v, enc)
end
end.join('&')
end
# Returns name/value pairs derived from the given string +str+,
# which must be an ASCII string.
#
# The method may be used to decode the body of Net::HTTPResponse object +res+
# for which <tt>res['Content-Type']</tt> is <tt>'application/x-www-form-urlencoded'</tt>.
#
# The returned data is an array of 2-element subarrays;
# each subarray is a name/value pair (both are strings).
# Each returned string has encoding +enc+,
# and has had invalid characters removed via
# {String#scrub}[rdoc-ref:String#scrub].
#
# A simple example:
#
# URI.decode_www_form('foo=0&bar=1&baz')
# # => [["foo", "0"], ["bar", "1"], ["baz", ""]]
#
# The returned strings have certain conversions,
# similar to those performed in URI.decode_www_form_component:
#
# URI.decode_www_form('f%23o=%2F&b-r=%24&b+z=%40')
# # => [["f#o", "/"], ["b-r", "$"], ["b z", "@"]]
#
# The given string may contain consecutive separators:
#
# URI.decode_www_form('foo=0&&bar=1&&baz=2')
# # => [["foo", "0"], ["", ""], ["bar", "1"], ["", ""], ["baz", "2"]]
#
# A different separator may be specified:
#
# URI.decode_www_form('foo=0--bar=1--baz', separator: '--')
# # => [["foo", "0"], ["bar", "1"], ["baz", ""]]
#
def self.decode_www_form(str, enc=Encoding::UTF_8, separator: '&', use__charset_: false, isindex: false)
raise ArgumentError, "the input of #{self.name}.#{__method__} must be ASCII only string" unless str.ascii_only?
ary = []
return ary if str.empty?
enc = Encoding.find(enc)
str.b.each_line(separator) do |string|
string.chomp!(separator)
key, sep, val = string.partition('=')
if isindex
if sep.empty?
val = key
key = +''
end
isindex = false
end
if use__charset_ and key == '_charset_' and e = get_encoding(val)
enc = e
use__charset_ = false
end
key.gsub!(/\+|%\h\h/, TBLDECWWWCOMP_)
if val
val.gsub!(/\+|%\h\h/, TBLDECWWWCOMP_)
else
val = +''
end
ary << [key, val]
end
ary.each do |k, v|
k.force_encoding(enc)
k.scrub!
v.force_encoding(enc)
v.scrub!
end
ary
end
private
=begin command for WEB_ENCODINGS_
curl https://encoding.spec.whatwg.org/encodings.json|
ruby -rjson -e 'H={}
h={
"shift_jis"=>"Windows-31J",
"euc-jp"=>"cp51932",
"iso-2022-jp"=>"cp50221",
"x-mac-cyrillic"=>"macCyrillic",
}
JSON($<.read).map{|x|x["encodings"]}.flatten.each{|x|
Encoding.find(n=h.fetch(n=x["name"].downcase,n))rescue next
x["labels"].each{|y|H[y]=n}
}
puts "{"
H.each{|k,v|puts %[ #{k.dump}=>#{v.dump},]}
puts "}"
'
=end
WEB_ENCODINGS_ = {
"unicode-1-1-utf-8"=>"utf-8",
"utf-8"=>"utf-8",
"utf8"=>"utf-8",
"866"=>"ibm866",
"cp866"=>"ibm866",
"csibm866"=>"ibm866",
"ibm866"=>"ibm866",
"csisolatin2"=>"iso-8859-2",
"iso-8859-2"=>"iso-8859-2",
"iso-ir-101"=>"iso-8859-2",
"iso8859-2"=>"iso-8859-2",
"iso88592"=>"iso-8859-2",
"iso_8859-2"=>"iso-8859-2",
"iso_8859-2:1987"=>"iso-8859-2",
"l2"=>"iso-8859-2",
"latin2"=>"iso-8859-2",
"csisolatin3"=>"iso-8859-3",
"iso-8859-3"=>"iso-8859-3",
"iso-ir-109"=>"iso-8859-3",
"iso8859-3"=>"iso-8859-3",
"iso88593"=>"iso-8859-3",
"iso_8859-3"=>"iso-8859-3",
"iso_8859-3:1988"=>"iso-8859-3",
"l3"=>"iso-8859-3",
"latin3"=>"iso-8859-3",
"csisolatin4"=>"iso-8859-4",
"iso-8859-4"=>"iso-8859-4",
"iso-ir-110"=>"iso-8859-4",
"iso8859-4"=>"iso-8859-4",
"iso88594"=>"iso-8859-4",
"iso_8859-4"=>"iso-8859-4",
"iso_8859-4:1988"=>"iso-8859-4",
"l4"=>"iso-8859-4",
"latin4"=>"iso-8859-4",
"csisolatincyrillic"=>"iso-8859-5",
"cyrillic"=>"iso-8859-5",
"iso-8859-5"=>"iso-8859-5",
"iso-ir-144"=>"iso-8859-5",
"iso8859-5"=>"iso-8859-5",
"iso88595"=>"iso-8859-5",
"iso_8859-5"=>"iso-8859-5",
"iso_8859-5:1988"=>"iso-8859-5",
"arabic"=>"iso-8859-6",
"asmo-708"=>"iso-8859-6",
"csiso88596e"=>"iso-8859-6",
"csiso88596i"=>"iso-8859-6",
"csisolatinarabic"=>"iso-8859-6",
"ecma-114"=>"iso-8859-6",
"iso-8859-6"=>"iso-8859-6",
"iso-8859-6-e"=>"iso-8859-6",
"iso-8859-6-i"=>"iso-8859-6",
"iso-ir-127"=>"iso-8859-6",
"iso8859-6"=>"iso-8859-6",
"iso88596"=>"iso-8859-6",
"iso_8859-6"=>"iso-8859-6",
"iso_8859-6:1987"=>"iso-8859-6",
"csisolatingreek"=>"iso-8859-7",
"ecma-118"=>"iso-8859-7",
"elot_928"=>"iso-8859-7",
"greek"=>"iso-8859-7",
"greek8"=>"iso-8859-7",
"iso-8859-7"=>"iso-8859-7",
"iso-ir-126"=>"iso-8859-7",
"iso8859-7"=>"iso-8859-7",
"iso88597"=>"iso-8859-7",
"iso_8859-7"=>"iso-8859-7",
"iso_8859-7:1987"=>"iso-8859-7",
"sun_eu_greek"=>"iso-8859-7",
"csiso88598e"=>"iso-8859-8",
"csisolatinhebrew"=>"iso-8859-8",
"hebrew"=>"iso-8859-8",
"iso-8859-8"=>"iso-8859-8",
"iso-8859-8-e"=>"iso-8859-8",
"iso-ir-138"=>"iso-8859-8",
"iso8859-8"=>"iso-8859-8",
"iso88598"=>"iso-8859-8",
"iso_8859-8"=>"iso-8859-8",
"iso_8859-8:1988"=>"iso-8859-8",
"visual"=>"iso-8859-8",
"csisolatin6"=>"iso-8859-10",
"iso-8859-10"=>"iso-8859-10",
"iso-ir-157"=>"iso-8859-10",
"iso8859-10"=>"iso-8859-10",
"iso885910"=>"iso-8859-10",
"l6"=>"iso-8859-10",
"latin6"=>"iso-8859-10",
"iso-8859-13"=>"iso-8859-13",
"iso8859-13"=>"iso-8859-13",
"iso885913"=>"iso-8859-13",
"iso-8859-14"=>"iso-8859-14",
"iso8859-14"=>"iso-8859-14",
"iso885914"=>"iso-8859-14",
"csisolatin9"=>"iso-8859-15",
"iso-8859-15"=>"iso-8859-15",
"iso8859-15"=>"iso-8859-15",
"iso885915"=>"iso-8859-15",
"iso_8859-15"=>"iso-8859-15",
"l9"=>"iso-8859-15",
"iso-8859-16"=>"iso-8859-16",
"cskoi8r"=>"koi8-r",
"koi"=>"koi8-r",
"koi8"=>"koi8-r",
"koi8-r"=>"koi8-r",
"koi8_r"=>"koi8-r",
"koi8-ru"=>"koi8-u",
"koi8-u"=>"koi8-u",
"dos-874"=>"windows-874",
"iso-8859-11"=>"windows-874",
"iso8859-11"=>"windows-874",
"iso885911"=>"windows-874",
"tis-620"=>"windows-874",
"windows-874"=>"windows-874",
"cp1250"=>"windows-1250",
"windows-1250"=>"windows-1250",
"x-cp1250"=>"windows-1250",
"cp1251"=>"windows-1251",
"windows-1251"=>"windows-1251",
"x-cp1251"=>"windows-1251",
"ansi_x3.4-1968"=>"windows-1252",
"ascii"=>"windows-1252",
"cp1252"=>"windows-1252",
"cp819"=>"windows-1252",
"csisolatin1"=>"windows-1252",
"ibm819"=>"windows-1252",
"iso-8859-1"=>"windows-1252",
"iso-ir-100"=>"windows-1252",
"iso8859-1"=>"windows-1252",
"iso88591"=>"windows-1252",
"iso_8859-1"=>"windows-1252",
"iso_8859-1:1987"=>"windows-1252",
"l1"=>"windows-1252",
"latin1"=>"windows-1252",
"us-ascii"=>"windows-1252",
"windows-1252"=>"windows-1252",
"x-cp1252"=>"windows-1252",
"cp1253"=>"windows-1253",
"windows-1253"=>"windows-1253",
"x-cp1253"=>"windows-1253",
"cp1254"=>"windows-1254",
"csisolatin5"=>"windows-1254",
"iso-8859-9"=>"windows-1254",
"iso-ir-148"=>"windows-1254",
"iso8859-9"=>"windows-1254",
"iso88599"=>"windows-1254",
"iso_8859-9"=>"windows-1254",
"iso_8859-9:1989"=>"windows-1254",
"l5"=>"windows-1254",
"latin5"=>"windows-1254",
"windows-1254"=>"windows-1254",
"x-cp1254"=>"windows-1254",
"cp1255"=>"windows-1255",
"windows-1255"=>"windows-1255",
"x-cp1255"=>"windows-1255",
"cp1256"=>"windows-1256",
"windows-1256"=>"windows-1256",
"x-cp1256"=>"windows-1256",
"cp1257"=>"windows-1257",
"windows-1257"=>"windows-1257",
"x-cp1257"=>"windows-1257",
"cp1258"=>"windows-1258",
"windows-1258"=>"windows-1258",
"x-cp1258"=>"windows-1258",
"x-mac-cyrillic"=>"macCyrillic",
"x-mac-ukrainian"=>"macCyrillic",
"chinese"=>"gbk",
"csgb2312"=>"gbk",
"csiso58gb231280"=>"gbk",
"gb2312"=>"gbk",
"gb_2312"=>"gbk",
"gb_2312-80"=>"gbk",
"gbk"=>"gbk",
"iso-ir-58"=>"gbk",
"x-gbk"=>"gbk",
"gb18030"=>"gb18030",
"big5"=>"big5",
"big5-hkscs"=>"big5",
"cn-big5"=>"big5",
"csbig5"=>"big5",
"x-x-big5"=>"big5",
"cseucpkdfmtjapanese"=>"cp51932",
"euc-jp"=>"cp51932",
"x-euc-jp"=>"cp51932",
"csiso2022jp"=>"cp50221",
"iso-2022-jp"=>"cp50221",
"csshiftjis"=>"Windows-31J",
"ms932"=>"Windows-31J",
"ms_kanji"=>"Windows-31J",
"shift-jis"=>"Windows-31J",
"shift_jis"=>"Windows-31J",
"sjis"=>"Windows-31J",
"windows-31j"=>"Windows-31J",
"x-sjis"=>"Windows-31J",
"cseuckr"=>"euc-kr",
"csksc56011987"=>"euc-kr",
"euc-kr"=>"euc-kr",
"iso-ir-149"=>"euc-kr",
"korean"=>"euc-kr",
"ks_c_5601-1987"=>"euc-kr",
"ks_c_5601-1989"=>"euc-kr",
"ksc5601"=>"euc-kr",
"ksc_5601"=>"euc-kr",
"windows-949"=>"euc-kr",
"utf-16be"=>"utf-16be",
"utf-16"=>"utf-16le",
"utf-16le"=>"utf-16le",
} # :nodoc:
Ractor.make_shareable(WEB_ENCODINGS_) if defined?(Ractor)
# :nodoc:
# return encoding or nil
# http://encoding.spec.whatwg.org/#concept-encoding-get
def self.get_encoding(label)
Encoding.find(WEB_ENCODINGS_[label.to_str.strip.downcase]) rescue nil
end
end # module URI
module Kernel
#
# Returns a \URI object derived from the given +uri+,
# which may be a \URI string or an existing \URI object:
#
# # Returns a new URI.
# uri = URI('http://github.com/ruby/ruby')
# # => #<URI::HTTP http://github.com/ruby/ruby>
# # Returns the given URI.
# URI(uri)
# # => #<URI::HTTP http://github.com/ruby/ruby>
#
def URI(uri)
if uri.is_a?(URI::Generic)
uri
elsif uri = String.try_convert(uri)
URI.parse(uri)
else
raise ArgumentError,
"bad argument (expected URI object or URI string)"
end
end
module_function :URI
end