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-rw-r--r--lib/uri/common.rb432
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diff --git a/lib/uri/common.rb b/lib/uri/common.rb
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-#
-# $Id$
-#
-# Copyright (c) 2001 akira yamada <akira@ruby-lang.org>
-# You can redistribute it and/or modify it under the same term as Ruby.
-#
-
-=begin
-
-== URI
-
-=end
-
-module URI
- module REGEXP
- module PATTERN
- # RFC 2396 (URI Generic Syntax)
- # RFC 2732 (IPv6 Literal Addresses in URL's)
- # RFC 2373 (IPv6 Addressing Architecture)
-
- # alpha = lowalpha | upalpha
- ALPHA = "a-zA-Z"
- # alphanum = alpha | digit
- ALNUM = "#{ALPHA}\\d"
-
- # hex = digit | "A" | "B" | "C" | "D" | "E" | "F" |
- # "a" | "b" | "c" | "d" | "e" | "f"
- HEX = "a-fA-F\\d"
- # escaped = "%" hex hex
- ESCAPED = "%[#{HEX}]{2}"
- # mark = "-" | "_" | "." | "!" | "~" | "*" | "'" |
- # "(" | ")"
- # unreserved = alphanum | mark
- UNRESERVED = "-_.!~*'()#{ALNUM}"
- # reserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" |
- # "$" | ","
- # reserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" |
- # "$" | "," | "[" | "]" (RFC 2732)
- RESERVED = ";/?:@&=+$,\\[\\]"
-
- # uric = reserved | unreserved | escaped
- URIC = "(?:[#{UNRESERVED}#{RESERVED}]|#{ESCAPED})"
- # uric_no_slash = unreserved | escaped | ";" | "?" | ":" | "@" |
- # "&" | "=" | "+" | "$" | ","
- URIC_NO_SLASH = "(?:[#{UNRESERVED};?:@&=+$,]|#{ESCAPED})"
- # query = *uric
- QUERY = "#{URIC}*"
- # fragment = *uric
- FRAGMENT = "#{URIC}*"
-
- # domainlabel = alphanum | alphanum *( alphanum | "-" ) alphanum
- DOMLABEL = "(?:[#{ALNUM}](?:[-#{ALNUM}]*[#{ALNUM}])?)"
- # toplabel = alpha | alpha *( alphanum | "-" ) alphanum
- TOPLABEL = "(?:[#{ALPHA}](?:[-#{ALNUM}]*[#{ALNUM}])?)"
- # hostname = *( domainlabel "." ) toplabel [ "." ]
- HOSTNAME = "(?:#{DOMLABEL}\\.)*#{TOPLABEL}\\.?"
-
- # RFC 2373, APPENDIX B:
- # IPv6address = hexpart [ ":" IPv4address ]
- # IPv4address = 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT
- # hexpart = hexseq | hexseq "::" [ hexseq ] | "::" [ hexseq ]
- # hexseq = hex4 *( ":" hex4)
- # hex4 = 1*4HEXDIG
- #
- # XXX: This definition has a flaw. "::" + IPv4address must be
- # allowed too. Here is a replacement.
- #
- # IPv4address = 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT
- IPV4ADDR = "\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}"
- # hex4 = 1*4HEXDIG
- HEX4 = "[#{HEX}]{1,4}"
- # lastpart = hex4 | IPv4address
- LASTPART = "(?:#{HEX4}|#{IPV4ADDR})"
- # hexseq1 = *( hex4 ":" ) hex4
- HEXSEQ1 = "(?:#{HEX4}:)*#{HEX4}"
- # hexseq2 = *( hex4 ":" ) lastpart
- HEXSEQ2 = "(?:#{HEX4}:)*#{LASTPART}"
- # IPv6address = hexseq2 | [ hexseq1 ] "::" [ hexseq2 ]
- IPV6ADDR = "(?:#{HEXSEQ2}|(?:#{HEXSEQ1})?::(?:#{HEXSEQ2})?)"
-
- # IPv6prefix = ( hexseq1 | [ hexseq1 ] "::" [ hexseq1 ] ) "/" 1*2DIGIT
- # unused
-
- # ipv6reference = "[" IPv6address "]" (RFC 2732)
- IPV6REF = "\\[#{IPV6ADDR}\\]"
-
- # host = hostname | IPv4address
- # host = hostname | IPv4address | IPv6reference (RFC 2732)
- HOST = "(?:#{HOSTNAME}|#{IPV4ADDR}|#{IPV6REF})"
- # port = *digit
- PORT = "\d*"
- # hostport = host [ ":" port ]
- HOSTPORT = "#{HOST}(?:#{PORT})?"
-
- # userinfo = *( unreserved | escaped |
- # ";" | ":" | "&" | "=" | "+" | "$" | "," )
- USERINFO = "(?:[#{UNRESERVED};:&=+$,]|#{ESCAPED})*"
-
- # pchar = unreserved | escaped |
- # ":" | "@" | "&" | "=" | "+" | "$" | ","
- PCHAR = "(?:[#{UNRESERVED}:@&=+$,]|#{ESCAPED})"
- # param = *pchar
- PARAM = "#{PCHAR}*"
- # segment = *pchar *( ";" param )
- SEGMENT = "#{PCHAR}*(?:;#{PARAM})*"
- # path_segments = segment *( "/" segment )
- PATH_SEGMENTS = "#{SEGMENT}(?:/#{SEGMENT})*"
-
- # server = [ [ userinfo "@" ] hostport ]
- SERVER = "(?:#{USERINFO}@)?#{HOSTPORT}"
- # reg_name = 1*( unreserved | escaped | "$" | "," |
- # ";" | ":" | "@" | "&" | "=" | "+" )
- REG_NAME = "(?:[#{UNRESERVED}$,;+@&=+]|#{ESCAPED})+"
- # authority = server | reg_name
- AUTHORITY = "(?:#{SERVER}|#{REG_NAME})"
-
- # rel_segment = 1*( unreserved | escaped |
- # ";" | "@" | "&" | "=" | "+" | "$" | "," )
- REL_SEGMENT = "(?:[#{UNRESERVED};@&=+$,]|#{ESCAPED})+"
-
- # scheme = alpha *( alpha | digit | "+" | "-" | "." )
- SCHEME = "[#{ALPHA}][-+.#{ALPHA}\\d]*"
-
- # abs_path = "/" path_segments
- ABS_PATH = "/#{PATH_SEGMENTS}"
- # rel_path = rel_segment [ abs_path ]
- REL_PATH = "#{REL_SEGMENT}(?:#{ABS_PATH})?"
- # net_path = "//" authority [ abs_path ]
- NET_PATH = "//#{AUTHORITY}(?:#{ABS_PATH})?"
-
- # hier_part = ( net_path | abs_path ) [ "?" query ]
- HIER_PART = "(?:#{NET_PATH}|#{ABS_PATH})(?:\\?(?:#{QUERY}))?"
- # opaque_part = uric_no_slash *uric
- OPAQUE_PART = "#{URIC_NO_SLASH}#{URIC}*"
-
- # absoluteURI = scheme ":" ( hier_part | opaque_part )
- ABS_URI = "#{SCHEME}:(?:#{HIER_PART}|#{OPAQUE_PART})"
- # relativeURI = ( net_path | abs_path | rel_path ) [ "?" query ]
- REL_URI = "(?:#{NET_PATH}|#{ABS_PATH}|#{REL_PATH})(?:\\?#{QUERY})?"
-
- # URI-reference = [ absoluteURI | relativeURI ] [ "#" fragment ]
- URI_REF = "(?:#{ABS_URI}|#{REL_URI})?(?:##{FRAGMENT})?"
-
- # XXX:
- X_ABS_URI = "
- (#{PATTERN::SCHEME}): (?# 1: scheme)
- (?:
- (?:
- //(?:
- (?:(?:(#{PATTERN::USERINFO})@)? (?# 2: userinfo)
- (?:(#{PATTERN::HOST})(?::(\\d*))?))?(?# 3: host, 4: port)
- |
- (#{PATTERN::REG_NAME}) (?# 5: registry)
- )
- (#{PATTERN::ABS_PATH})? (?# 6: path)
- )(?:\\?(#{PATTERN::QUERY}))? (?# 7: query)
- |
- (#{PATTERN::OPAQUE_PART}) (?# 8: opaque)
- )
- (?:\\#(#{PATTERN::FRAGMENT}))? (?# 9: fragment)
- "
- X_REL_URI = "
- (?:
- (?:
- //
- (?:
- (?:(#{PATTERN::USERINFO})@)? (?# 1: userinfo)
- (#{PATTERN::HOST})?(?::(\\d*))? (?# 2: host, 3: port)
- |
- (#{PATTERN::REG_NAME}) (?# 4: registry)
- )
- )
- |
- (#{PATTERN::REL_SEGMENT}) (?# 5: rel_segment)
- )?
- (#{PATTERN::ABS_PATH})? (?# 6: abs_path)
- (?:\\?(#{PATTERN::QUERY}))? (?# 7: query)
- (?:\\#(#{PATTERN::FRAGMENT}))? (?# 8: fragment)
- "
- end # PATTERN
-
- # for URI::split
- ABS_URI = Regexp.new('^' + PATTERN::X_ABS_URI + '$', #'
- Regexp::EXTENDED, 'N').freeze
- REL_URI = Regexp.new('^' + PATTERN::X_REL_URI + '$', #'
- Regexp::EXTENDED, 'N').freeze
-
- # for URI::extract
- URI_REF = Regexp.new(PATTERN::URI_REF, false, 'N').freeze
- ABS_URI_REF = Regexp.new(PATTERN::X_ABS_URI, Regexp::EXTENDED, 'N').freeze
- REL_URI_REF = Regexp.new(PATTERN::X_REL_URI, Regexp::EXTENDED, 'N').freeze
-
- # for URI::escape/unescape
- ESCAPED = Regexp.new(PATTERN::ESCAPED, false, 'N').freeze
- UNSAFE = Regexp.new("[^#{PATTERN::UNRESERVED}#{PATTERN::RESERVED}]",
- false, 'N').freeze
-
- # for Generic#initialize
- SCHEME = Regexp.new("^#{PATTERN::SCHEME}$", false, 'N').freeze #"
- USERINFO = Regexp.new("^#{PATTERN::USERINFO}$", false, 'N').freeze #"
- HOST = Regexp.new("^#{PATTERN::HOST}$", false, 'N').freeze #"
- PORT = Regexp.new("^#{PATTERN::PORT}$", false, 'N').freeze #"
- OPAQUE = Regexp.new("^#{PATTERN::OPAQUE_PART}$", false, 'N').freeze #"
- REGISTRY = Regexp.new("^#{PATTERN::REG_NAME}$", false, 'N').freeze #"
- ABS_PATH = Regexp.new("^#{PATTERN::ABS_PATH}$", false, 'N').freeze #"
- REL_PATH = Regexp.new("^#{PATTERN::REL_PATH}$", false, 'N').freeze #"
- QUERY = Regexp.new("^#{PATTERN::QUERY}$", false, 'N').freeze #"
- FRAGMENT = Regexp.new("^#{PATTERN::FRAGMENT}$", false, 'N').freeze #"
- end # REGEXP
-
- module Util
- 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 compornents of #{klass.to_s} (#{klass.component[1..-1].join(', ')})"
- end
- tmp[:scheme] = klass.to_s.sub(/\A.*::/, '').downcase
-
- return tmp
- end
- module_function :make_components_hash
- end
-
- module Escape
- include REGEXP
-
- def escape(str, unsafe = UNSAFE)
- unless unsafe.kind_of?(Regexp)
- # perhaps unsafe is String object
- unsafe = Regexp.new(Regexp.quote(unsafe), false, 'N')
- end
- str.gsub(unsafe) do |us|
- tmp = ''
- us.each_byte do |uc|
- tmp << sprintf('%%%02X', uc)
- end
- tmp
- end
- end
- alias encode escape
-
- def unescape(str)
- str.gsub(ESCAPED) do
- $&[1,2].hex.chr
- end
- end
- alias decode unescape
- end
-
- include REGEXP
- extend Escape
-
- @@schemes = {}
-
- class Error < StandardError; end
- class InvalidURIError < Error; end # it is not URI.
- class InvalidComponentError < Error; end # it is not component of URI.
- class BadURIError < Error; end # the URI is valid but it is bad for the position.
-
-=begin
-
-=== Methods
-
---- URI::split(uri)
-
-=end
-
- def self.split(uri)
- case uri
- when ''
- # null uri
-
- when ABS_URI
- scheme, userinfo, host, port,
- registry, path, query, opaque, fragment = $~[1..-1]
-
- # URI-reference = [ absoluteURI | relativeURI ] [ "#" fragment ]
-
- # absoluteURI = scheme ":" ( hier_part | opaque_part )
- # hier_part = ( net_path | abs_path ) [ "?" query ]
- # opaque_part = uric_no_slash *uric
-
- # abs_path = "/" path_segments
- # net_path = "//" authority [ abs_path ]
-
- # authority = server | reg_name
- # server = [ [ userinfo "@" ] hostport ]
-
- if !scheme
- raise InvalidURIError,
- "bad URI(absolute but no scheme): #{uri}"
- end
- if !opaque && (!path && (!host && !registry))
- raise InvalidURIError,
- "bad URI(absolute but no path): #{uri}"
- end
-
- when REL_URI
- scheme = nil
- opaque = nil
-
- userinfo, host, port, registry,
- rel_segment, abs_path, query, fragment = $~[1..-1]
- if rel_segment && abs_path
- path = rel_segment + abs_path
- elsif rel_segment
- path = rel_segment
- elsif abs_path
- path = abs_path
- end
-
- # URI-reference = [ absoluteURI | relativeURI ] [ "#" fragment ]
-
- # relativeURI = ( net_path | abs_path | rel_path ) [ "?" query ]
-
- # net_path = "//" authority [ abs_path ]
- # abs_path = "/" path_segments
- # rel_path = rel_segment [ abs_path ]
-
- # authority = server | reg_name
- # server = [ [ userinfo "@" ] hostport ]
-
- else
- raise InvalidURIError, "bad URI(is not URI?): #{uri}"
- end
-
- path = '' if !path && !opaque # (see RFC2396 Section 5.2)
- ret = [
- scheme,
- userinfo, host, port, # X
- registry, # X
- path, # Y
- opaque, # Y
- query,
- fragment
- ]
- return ret
- end
-
-=begin
-
---- URI::parse(uri_str)
-
-=end
- def self.parse(uri)
- scheme, userinfo, host, port,
- registry, path, opaque, query, fragment = self.split(uri)
-
- if scheme && @@schemes.include?(scheme.upcase)
- @@schemes[scheme.upcase].new(scheme, userinfo, host, port,
- registry, path, opaque, query,
- fragment)
- else
- Generic.new(scheme, userinfo, host, port,
- registry, path, opaque, query,
- fragment)
- end
- end
-
-=begin
-
---- URI::join(str[, str, ...])
-
-=end
- def self.join(*str)
- u = self.parse(str[0])
- str[1 .. -1].each do |x|
- u = u.merge(x)
- end
- u
- end
-
-=begin
-
---- URI::extract(str[, schemes])
-
-=end
- def self.extract(str, schemes = [])
- urls = []
- if schemes.size > 0
- tmp = Regexp.new('(?:' + schemes.collect{|s|
- Regexp.quote(s + ':')
- }.join('|') + ')',
- Regexp::IGNORECASE, 'N')
- str.scan(tmp) {
- tmp_str = $& + $'
- if ABS_URI_REF =~ tmp_str
- if block_given?
- yield($&)
- else
- urls << $&
- end
- end
- }
-
- else
- str.scan(ABS_URI_REF) {
- if block_given?
- yield($&)
- else
- urls << $&
- end
- }
- end
-
- if block_given?
- return nil
- else
- return urls
- end
- end
-
-end # URI
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-14 20:46:55 +0000