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Edit File : common.rb \| Size : 19.79 KB
# 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) RFC2396_PARSER = RFC2396_Parser.new Ractor.make_shareable(RFC2396_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 # # Register the given +klass+ to be instantiated when parsing URLs with the given +scheme+. # Note that currently only schemes which after .upcase are valid constant names # can be registered (no -/+/. allowed). # def self.register_scheme(scheme, klass) Schemes.const_set(scheme.to_s.upcase, klass) end # Returns a Hash of the defined schemes. 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) # # Construct a URI instance, using the scheme to detect the appropriate class # from +URI.scheme_list+. # 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 # # == Synopsis # # URI::split(uri) # # == Args # # +uri+:: # String with URI. # # == Description # # Splits the string on following parts and returns array with result: # # * Scheme # * Userinfo # * Host # * Port # * Registry # * Path # * Opaque # * Query # * Fragment # # == Usage # # require 'uri' # # URI.split("http://www.ruby-lang.org/") # # => ["http", nil, "www.ruby-lang.org", nil, nil, "/", nil, nil, nil] # def self.split(uri) RFC3986_PARSER.split(uri) end # # == Synopsis # # URI::parse(uri_str) # # == Args # # +uri_str+:: # String with URI. # # == Description # # Creates one of the URI's subclasses instance from the string. # # == Raises # # URI::InvalidURIError:: # Raised if URI given is not a correct one. # # == Usage # # require 'uri' # # uri = URI.parse("http://www.ruby-lang.org/") # # => #<URI::HTTP http://www.ruby-lang.org/> # uri.scheme # # => "http" # uri.host # # => "www.ruby-lang.org" # # It's recommended to first ::escape the provided +uri_str+ if there are any # invalid URI characters. # def self.parse(uri) RFC3986_PARSER.parse(uri) end # # == Synopsis # # URI::join(str[, str, ...]) # # == Args # # +str+:: # String(s) to work with, will be converted to RFC3986 URIs before merging. # # == Description # # Joins URIs. # # == Usage # # require 'uri' # # 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) 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) 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 # Encodes given +str+ to URL-encoded form data. # # This method doesn't convert , -, ., 0-9, A-Z, _, a-z, but does convert SP # (ASCII space) to + and converts others to %XX. # # If +enc+ is given, convert +str+ to the encoding before percent encoding. # # This is an implementation of # https://www.w3.org/TR/2013/CR-html5-20130806/forms.html#url-encoded-form-data. # # See URI.decode_www_form_component, URI.encode_www_form. def self.encode_www_form_component(str, enc=nil) _encode_uri_component(/[^\-.0-9A-Z_a-z]/, TBLENCWWWCOMP_, str, enc) end # Decodes given +str+ of URL-encoded form data. # # This decodes + to SP. # # See URI.encode_www_form_component, URI.decode_www_form. def self.decode_www_form_component(str, enc=Encoding::UTF_8) _decode_uri_component(/\+\|%\h\h/, str, enc) end # Encodes +str+ using URL encoding # # This encodes SP to %20 instead of +. def self.encode_uri_component(str, enc=nil) _encode_uri_component(/[^\-.0-9A-Z_a-z]/, TBLENCURICOMP_, str, enc) end # Decodes given +str+ of URL-encoded data. # # This does not decode + to SP. 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 # Generates URL-encoded form data from given +enum+. # # This generates application/x-www-form-urlencoded data defined in HTML5 # from given an Enumerable object. # # This internally uses URI.encode_www_form_component(str). # # This method doesn't convert the encoding of given items, so convert them # before calling this method if you want to send data as other than original # encoding or mixed encoding data. (Strings which are encoded in an HTML5 # ASCII incompatible encoding are converted to UTF-8.) # # This method doesn't handle files. When you send a file, use # multipart/form-data. # # This refers https://url.spec.whatwg.org/#concept-urlencoded-serializer # # URI.encode_www_form([["q", "ruby"], ["lang", "en"]]) # #=> "q=ruby&lang=en" # URI.encode_www_form("q" => "ruby", "lang" => "en") # #=> "q=ruby&lang=en" # URI.encode_www_form("q" => ["ruby", "perl"], "lang" => "en") # #=> "q=ruby&q=perl&lang=en" # URI.encode_www_form([["q", "ruby"], ["q", "perl"], ["lang", "en"]]) # #=> "q=ruby&q=perl&lang=en" # # See URI.encode_www_form_component, URI.decode_www_form. 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 # Decodes URL-encoded form data from given +str+. # # This decodes application/x-www-form-urlencoded data # and returns an array of key-value arrays. # # This refers http://url.spec.whatwg.org/#concept-urlencoded-parser, # so this supports only &-separator, and doesn't support ;-separator. # # ary = URI.decode_www_form("a=1&a=2&b=3") # ary #=> [['a', '1'], ['a', '2'], ['b', '3']] # ary.assoc('a').last #=> '1' # ary.assoc('b').last #=> '3' # ary.rassoc('a').last #=> '2' # Hash[ary] #=> {"a"=>"2", "b"=>"3"} # # See URI.decode_www_form_component, URI.encode_www_form. 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 +uri+ converted to an URI object. # 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 Back

Edit File : common.rb | Size : 19.79 KB

# 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)
  RFC2396_PARSER = RFC2396_Parser.new
  Ractor.make_shareable(RFC2396_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

#
  # Register the given +klass+ to be instantiated when parsing URLs with the given +scheme+.
  # Note that currently only schemes which after .upcase are valid constant names
  # can be registered (no -/+/. allowed).
  #
  def self.register_scheme(scheme, klass)
    Schemes.const_set(scheme.to_s.upcase, klass)
  end

# Returns a Hash of the defined schemes.
  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)

#
  # Construct a URI instance, using the scheme to detect the appropriate class
  # from +URI.scheme_list+.
  #
  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

#
  # == Synopsis
  #
  #   URI::split(uri)
  #
  # == Args
  #
  # +uri+::
  #   String with URI.
  #
  # == Description
  #
  # Splits the string on following parts and returns array with result:
  #
  # * Scheme
  # * Userinfo
  # * Host
  # * Port
  # * Registry
  # * Path
  # * Opaque
  # * Query
  # * Fragment
  #
  # == Usage
  #
  #   require 'uri'
  #
  #   URI.split("http://www.ruby-lang.org/")
  #   # => ["http", nil, "www.ruby-lang.org", nil, nil, "/", nil, nil, nil]
  #
  def self.split(uri)
    RFC3986_PARSER.split(uri)
  end

#
  # == Synopsis
  #
  #   URI::parse(uri_str)
  #
  # == Args
  #
  # +uri_str+::
  #   String with URI.
  #
  # == Description
  #
  # Creates one of the URI's subclasses instance from the string.
  #
  # == Raises
  #
  # URI::InvalidURIError::
  #   Raised if URI given is not a correct one.
  #
  # == Usage
  #
  #   require 'uri'
  #
  #   uri = URI.parse("http://www.ruby-lang.org/")
  #   # => #<URI::HTTP http://www.ruby-lang.org/>
  #   uri.scheme
  #   # => "http"
  #   uri.host
  #   # => "www.ruby-lang.org"
  #
  # It's recommended to first ::escape the provided +uri_str+ if there are any
  # invalid URI characters.
  #
  def self.parse(uri)
    RFC3986_PARSER.parse(uri)
  end

#
  # == Synopsis
  #
  #   URI::join(str[, str, ...])
  #
  # == Args
  #
  # +str+::
  #   String(s) to work with, will be converted to RFC3986 URIs before merging.
  #
  # == Description
  #
  # Joins URIs.
  #
  # == Usage
  #
  #   require 'uri'
  #
  #   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)
    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)
    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

# Encodes given +str+ to URL-encoded form data.
  #
  # This method doesn't convert *, -, ., 0-9, A-Z, _, a-z, but does convert SP
  # (ASCII space) to + and converts others to %XX.
  #
  # If +enc+ is given, convert +str+ to the encoding before percent encoding.
  #
  # This is an implementation of
  # https://www.w3.org/TR/2013/CR-html5-20130806/forms.html#url-encoded-form-data.
  #
  # See URI.decode_www_form_component, URI.encode_www_form.
  def self.encode_www_form_component(str, enc=nil)
    _encode_uri_component(/[^*\-.0-9A-Z_a-z]/, TBLENCWWWCOMP_, str, enc)
  end

# Decodes given +str+ of URL-encoded form data.
  #
  # This decodes + to SP.
  #
  # See URI.encode_www_form_component, URI.decode_www_form.
  def self.decode_www_form_component(str, enc=Encoding::UTF_8)
    _decode_uri_component(/\+|%\h\h/, str, enc)
  end

# Encodes +str+ using URL encoding
  #
  # This encodes SP to %20 instead of +.
  def self.encode_uri_component(str, enc=nil)
    _encode_uri_component(/[^*\-.0-9A-Z_a-z]/, TBLENCURICOMP_, str, enc)
  end

# Decodes given +str+ of URL-encoded data.
  #
  # This does not decode + to SP.
  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

# Generates URL-encoded form data from given +enum+.
  #
  # This generates application/x-www-form-urlencoded data defined in HTML5
  # from given an Enumerable object.
  #
  # This internally uses URI.encode_www_form_component(str).
  #
  # This method doesn't convert the encoding of given items, so convert them
  # before calling this method if you want to send data as other than original
  # encoding or mixed encoding data. (Strings which are encoded in an HTML5
  # ASCII incompatible encoding are converted to UTF-8.)
  #
  # This method doesn't handle files.  When you send a file, use
  # multipart/form-data.
  #
  # This refers https://url.spec.whatwg.org/#concept-urlencoded-serializer
  #
  #    URI.encode_www_form([["q", "ruby"], ["lang", "en"]])
  #    #=> "q=ruby&lang=en"
  #    URI.encode_www_form("q" => "ruby", "lang" => "en")
  #    #=> "q=ruby&lang=en"
  #    URI.encode_www_form("q" => ["ruby", "perl"], "lang" => "en")
  #    #=> "q=ruby&q=perl&lang=en"
  #    URI.encode_www_form([["q", "ruby"], ["q", "perl"], ["lang", "en"]])
  #    #=> "q=ruby&q=perl&lang=en"
  #
  # See URI.encode_www_form_component, URI.decode_www_form.
  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

# Decodes URL-encoded form data from given +str+.
  #
  # This decodes application/x-www-form-urlencoded data
  # and returns an array of key-value arrays.
  #
  # This refers http://url.spec.whatwg.org/#concept-urlencoded-parser,
  # so this supports only &-separator, and doesn't support ;-separator.
  #
  #    ary = URI.decode_www_form("a=1&a=2&b=3")
  #    ary                   #=> [['a', '1'], ['a', '2'], ['b', '3']]
  #    ary.assoc('a').last   #=> '1'
  #    ary.assoc('b').last   #=> '3'
  #    ary.rassoc('a').last  #=> '2'
  #    Hash[ary]             #=> {"a"=>"2", "b"=>"3"}
  #
  # See URI.decode_www_form_component, URI.encode_www_form.
  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 +uri+ converted to an URI object.
  #
  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

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