mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
05e476c941
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2934 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
424 lines
13 KiB
Ruby
424 lines
13 KiB
Ruby
#
|
|
# $Id$
|
|
#
|
|
# 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)
|
|
)
|
|
|
|
|
(?!//)) (?# XXX: '//' is the mark for hostport)
|
|
(#{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 components 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 = $~[1..-1]
|
|
if rel_segment && abs_path
|
|
path = rel_segment + abs_path
|
|
elsif rel_segment
|
|
path = rel_segment
|
|
elsif abs_path
|
|
path = abs_path
|
|
end
|
|
|
|
# URI-reference = [ absoluteURI | relativeURI ] [ "#" fragment ]
|
|
|
|
# relativeURI = ( net_path | abs_path | rel_path ) [ "?" query ]
|
|
|
|
# net_path = "//" authority [ abs_path ]
|
|
# abs_path = "/" path_segments
|
|
# rel_path = rel_segment [ abs_path ]
|
|
|
|
# authority = server | reg_name
|
|
# server = [ [ userinfo "@" ] hostport ]
|
|
|
|
else
|
|
raise InvalidURIError, "bad URI(is not URI?): #{uri}"
|
|
end
|
|
|
|
path = '' if !path && !opaque # (see RFC2396 Section 5.2)
|
|
ret = [
|
|
scheme,
|
|
userinfo, host, port, # X
|
|
registry, # X
|
|
path, # Y
|
|
opaque, # Y
|
|
query,
|
|
fragment
|
|
]
|
|
return ret
|
|
end
|
|
|
|
=begin
|
|
|
|
--- URI::parse(uri_str)
|
|
|
|
=end
|
|
def self.parse(uri)
|
|
scheme, userinfo, host, port,
|
|
registry, path, opaque, query, fragment = self.split(uri)
|
|
|
|
if scheme && @@schemes.include?(scheme.upcase)
|
|
@@schemes[scheme.upcase].new(scheme, userinfo, host, port,
|
|
registry, path, opaque, query,
|
|
fragment)
|
|
else
|
|
Generic.new(scheme, userinfo, host, port,
|
|
registry, path, opaque, query,
|
|
fragment)
|
|
end
|
|
end
|
|
|
|
=begin
|
|
|
|
--- URI::join(str[, str, ...])
|
|
|
|
=end
|
|
def self.join(*str)
|
|
u = self.parse(str[0])
|
|
str[1 .. -1].each do |x|
|
|
u = u.merge(x)
|
|
end
|
|
u
|
|
end
|
|
|
|
=begin
|
|
|
|
--- URI::extract(str[, schemes])
|
|
|
|
=end
|
|
def self.extract(str, schemes = [])
|
|
urls = []
|
|
regexp = ABS_URI_REF
|
|
unless schemes.empty?
|
|
regexp = Regexp.new('(?=' + schemes.collect{|s|
|
|
Regexp.quote(s + ':')
|
|
}.join('|') + ')' + PATTERN::X_ABS_URI,
|
|
Regexp::IGNORECASE, 'N')
|
|
end
|
|
|
|
str.scan(ABS_URI_REF) {
|
|
if block_given?
|
|
yield($&)
|
|
else
|
|
urls << $&
|
|
end
|
|
}
|
|
|
|
if block_given?
|
|
return nil
|
|
else
|
|
return urls
|
|
end
|
|
end
|
|
|
|
end # URI
|