diff options
Diffstat (limited to 'lib/rubygems/vendor/uri/lib/uri/generic.rb')
| -rw-r--r-- | lib/rubygems/vendor/uri/lib/uri/generic.rb | 1588 |
1 files changed, 1588 insertions, 0 deletions
diff --git a/lib/rubygems/vendor/uri/lib/uri/generic.rb b/lib/rubygems/vendor/uri/lib/uri/generic.rb new file mode 100644 index 0000000000..72c52aa8ee --- /dev/null +++ b/lib/rubygems/vendor/uri/lib/uri/generic.rb @@ -0,0 +1,1588 @@ +# frozen_string_literal: true + +# = uri/generic.rb +# +# Author:: Akira Yamada <akira@ruby-lang.org> +# License:: You can redistribute it and/or modify it under the same term as Ruby. +# +# See Gem::URI for general documentation +# + +require_relative 'common' +autoload :IPSocket, 'socket' +autoload :IPAddr, 'ipaddr' + +module Gem::URI + + # + # Base class for all Gem::URI classes. + # Implements generic Gem::URI syntax as per RFC 2396. + # + class Generic + include Gem::URI + + # + # A Default port of nil for Gem::URI::Generic. + # + DEFAULT_PORT = nil + + # + # Returns default port. + # + def self.default_port + self::DEFAULT_PORT + end + + # + # Returns default port. + # + def default_port + self.class.default_port + end + + # + # An Array of the available components for Gem::URI::Generic. + # + COMPONENT = [ + :scheme, + :userinfo, :host, :port, :registry, + :path, :opaque, + :query, + :fragment + ].freeze + + # + # Components of the Gem::URI in the order. + # + def self.component + self::COMPONENT + end + + USE_REGISTRY = false # :nodoc: + + def self.use_registry # :nodoc: + self::USE_REGISTRY + end + + # + # == Synopsis + # + # See ::new. + # + # == Description + # + # At first, tries to create a new Gem::URI::Generic instance using + # Gem::URI::Generic::build. But, if exception Gem::URI::InvalidComponentError is raised, + # then it does Gem::URI::Escape.escape all Gem::URI components and tries again. + # + def self.build2(args) + begin + return self.build(args) + rescue InvalidComponentError + if args.kind_of?(Array) + return self.build(args.collect{|x| + if x.is_a?(String) + DEFAULT_PARSER.escape(x) + else + x + end + }) + elsif args.kind_of?(Hash) + tmp = {} + args.each do |key, value| + tmp[key] = if value + DEFAULT_PARSER.escape(value) + else + value + end + end + return self.build(tmp) + end + end + end + + # + # == Synopsis + # + # See ::new. + # + # == Description + # + # Creates a new Gem::URI::Generic instance from components of Gem::URI::Generic + # with check. Components are: scheme, userinfo, host, port, registry, path, + # opaque, query, and fragment. You can provide arguments either by an Array or a Hash. + # See ::new for hash keys to use or for order of array items. + # + def self.build(args) + if args.kind_of?(Array) && + args.size == ::Gem::URI::Generic::COMPONENT.size + tmp = args.dup + elsif args.kind_of?(Hash) + tmp = ::Gem::URI::Generic::COMPONENT.collect do |c| + if args.include?(c) + args[c] + else + nil + end + end + else + component = self.class.component rescue ::Gem::URI::Generic::COMPONENT + raise ArgumentError, + "expected Array of or Hash of components of #{self.class} (#{component.join(', ')})" + end + + tmp << nil + tmp << true + return self.new(*tmp) + end + + # + # == Args + # + # +scheme+:: + # Protocol scheme, i.e. 'http','ftp','mailto' and so on. + # +userinfo+:: + # User name and password, i.e. 'sdmitry:bla'. + # +host+:: + # Server host name. + # +port+:: + # Server port. + # +registry+:: + # Registry of naming authorities. + # +path+:: + # Path on server. + # +opaque+:: + # Opaque part. + # +query+:: + # Query data. + # +fragment+:: + # Part of the Gem::URI after '#' character. + # +parser+:: + # Parser for internal use [Gem::URI::DEFAULT_PARSER by default]. + # +arg_check+:: + # Check arguments [false by default]. + # + # == Description + # + # Creates a new Gem::URI::Generic instance from ``generic'' components without check. + # + def initialize(scheme, + userinfo, host, port, registry, + path, opaque, + query, + fragment, + parser = DEFAULT_PARSER, + arg_check = false) + @scheme = nil + @user = nil + @password = nil + @host = nil + @port = nil + @path = nil + @query = nil + @opaque = nil + @fragment = nil + @parser = parser == DEFAULT_PARSER ? nil : parser + + if arg_check + self.scheme = scheme + self.userinfo = userinfo + self.hostname = host + self.port = port + self.path = path + self.query = query + self.opaque = opaque + self.fragment = fragment + else + self.set_scheme(scheme) + self.set_userinfo(userinfo) + self.set_host(host) + self.set_port(port) + self.set_path(path) + self.query = query + self.set_opaque(opaque) + self.fragment=(fragment) + end + if registry + raise InvalidURIError, + "the scheme #{@scheme} does not accept registry part: #{registry} (or bad hostname?)" + end + + @scheme&.freeze + self.set_path('') if !@path && !@opaque # (see RFC2396 Section 5.2) + self.set_port(self.default_port) if self.default_port && !@port + end + + # + # Returns the scheme component of the Gem::URI. + # + # Gem::URI("http://foo/bar/baz").scheme #=> "http" + # + attr_reader :scheme + + # Returns the host component of the Gem::URI. + # + # Gem::URI("http://foo/bar/baz").host #=> "foo" + # + # It returns nil if no host component exists. + # + # Gem::URI("mailto:foo@example.org").host #=> nil + # + # The component does not contain the port number. + # + # Gem::URI("http://foo:8080/bar/baz").host #=> "foo" + # + # Since IPv6 addresses are wrapped with brackets in URIs, + # this method returns IPv6 addresses wrapped with brackets. + # This form is not appropriate to pass to socket methods such as TCPSocket.open. + # If unwrapped host names are required, use the #hostname method. + # + # Gem::URI("http://[::1]/bar/baz").host #=> "[::1]" + # Gem::URI("http://[::1]/bar/baz").hostname #=> "::1" + # + attr_reader :host + + # Returns the port component of the Gem::URI. + # + # Gem::URI("http://foo/bar/baz").port #=> 80 + # Gem::URI("http://foo:8080/bar/baz").port #=> 8080 + # + attr_reader :port + + def registry # :nodoc: + nil + end + + # Returns the path component of the Gem::URI. + # + # Gem::URI("http://foo/bar/baz").path #=> "/bar/baz" + # + attr_reader :path + + # Returns the query component of the Gem::URI. + # + # Gem::URI("http://foo/bar/baz?search=FooBar").query #=> "search=FooBar" + # + attr_reader :query + + # Returns the opaque part of the Gem::URI. + # + # Gem::URI("mailto:foo@example.org").opaque #=> "foo@example.org" + # Gem::URI("http://foo/bar/baz").opaque #=> nil + # + # The portion of the path that does not make use of the slash '/'. + # The path typically refers to an absolute path or an opaque part. + # (See RFC2396 Section 3 and 5.2.) + # + attr_reader :opaque + + # Returns the fragment component of the Gem::URI. + # + # Gem::URI("http://foo/bar/baz?search=FooBar#ponies").fragment #=> "ponies" + # + attr_reader :fragment + + # Returns the parser to be used. + # + # Unless a Gem::URI::Parser is defined, DEFAULT_PARSER is used. + # + def parser + if !defined?(@parser) || !@parser + DEFAULT_PARSER + else + @parser || DEFAULT_PARSER + end + end + + # Replaces self by other Gem::URI object. + # + def replace!(oth) + if self.class != oth.class + raise ArgumentError, "expected #{self.class} object" + end + + component.each do |c| + self.__send__("#{c}=", oth.__send__(c)) + end + end + private :replace! + + # + # Components of the Gem::URI in the order. + # + def component + self.class.component + end + + # + # Checks the scheme +v+ component against the Gem::URI::Parser Regexp for :SCHEME. + # + def check_scheme(v) + if v && parser.regexp[:SCHEME] !~ v + raise InvalidComponentError, + "bad component(expected scheme component): #{v}" + end + + return true + end + private :check_scheme + + # Protected setter for the scheme component +v+. + # + # See also Gem::URI::Generic.scheme=. + # + def set_scheme(v) + @scheme = v&.downcase + end + protected :set_scheme + + # + # == Args + # + # +v+:: + # String + # + # == Description + # + # Public setter for the scheme component +v+ + # (with validation). + # + # See also Gem::URI::Generic.check_scheme. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://my.example.com") + # uri.scheme = "https" + # uri.to_s #=> "https://my.example.com" + # + def scheme=(v) + check_scheme(v) + set_scheme(v) + v + end + + # + # Checks the +user+ and +password+. + # + # If +password+ is not provided, then +user+ is + # split, using Gem::URI::Generic.split_userinfo, to + # pull +user+ and +password. + # + # See also Gem::URI::Generic.check_user, Gem::URI::Generic.check_password. + # + def check_userinfo(user, password = nil) + if !password + user, password = split_userinfo(user) + end + check_user(user) + check_password(password, user) + + return true + end + private :check_userinfo + + # + # Checks the user +v+ component for RFC2396 compliance + # and against the Gem::URI::Parser Regexp for :USERINFO. + # + # Can not have a registry or opaque component defined, + # with a user component defined. + # + def check_user(v) + if @opaque + raise InvalidURIError, + "can not set user with opaque" + end + + return v unless v + + if parser.regexp[:USERINFO] !~ v + raise InvalidComponentError, + "bad component(expected userinfo component or user component): #{v}" + end + + return true + end + private :check_user + + # + # Checks the password +v+ component for RFC2396 compliance + # and against the Gem::URI::Parser Regexp for :USERINFO. + # + # Can not have a registry or opaque component defined, + # with a user component defined. + # + def check_password(v, user = @user) + if @opaque + raise InvalidURIError, + "can not set password with opaque" + end + return v unless v + + if !user + raise InvalidURIError, + "password component depends user component" + end + + if parser.regexp[:USERINFO] !~ v + raise InvalidComponentError, + "bad password component" + end + + return true + end + private :check_password + + # + # Sets userinfo, argument is string like 'name:pass'. + # + def userinfo=(userinfo) + if userinfo.nil? + return nil + end + check_userinfo(*userinfo) + set_userinfo(*userinfo) + # returns userinfo + end + + # + # == Args + # + # +v+:: + # String + # + # == Description + # + # Public setter for the +user+ component + # (with validation). + # + # See also Gem::URI::Generic.check_user. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://john:S3nsit1ve@my.example.com") + # uri.user = "sam" + # uri.to_s #=> "http://sam:V3ry_S3nsit1ve@my.example.com" + # + def user=(user) + check_user(user) + set_user(user) + # returns user + end + + # + # == Args + # + # +v+:: + # String + # + # == Description + # + # Public setter for the +password+ component + # (with validation). + # + # See also Gem::URI::Generic.check_password. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://john:S3nsit1ve@my.example.com") + # uri.password = "V3ry_S3nsit1ve" + # uri.to_s #=> "http://john:V3ry_S3nsit1ve@my.example.com" + # + def password=(password) + check_password(password) + set_password(password) + # returns password + end + + # Protected setter for the +user+ component, and +password+ if available + # (with validation). + # + # See also Gem::URI::Generic.userinfo=. + # + def set_userinfo(user, password = nil) + unless password + user, password = split_userinfo(user) + end + @user = user + @password = password if password + + [@user, @password] + end + protected :set_userinfo + + # Protected setter for the user component +v+. + # + # See also Gem::URI::Generic.user=. + # + def set_user(v) + set_userinfo(v, @password) + v + end + protected :set_user + + # Protected setter for the password component +v+. + # + # See also Gem::URI::Generic.password=. + # + def set_password(v) + @password = v + # returns v + end + protected :set_password + + # Returns the userinfo +ui+ as <code>[user, password]</code> + # if properly formatted as 'user:password'. + def split_userinfo(ui) + return nil, nil unless ui + user, password = ui.split(':', 2) + + return user, password + end + private :split_userinfo + + # Escapes 'user:password' +v+ based on RFC 1738 section 3.1. + def escape_userpass(v) + parser.escape(v, /[@:\/]/o) # RFC 1738 section 3.1 #/ + end + private :escape_userpass + + # Returns the userinfo, either as 'user' or 'user:password'. + def userinfo + if @user.nil? + nil + elsif @password.nil? + @user + else + @user + ':' + @password + end + end + + # Returns the user component (without Gem::URI decoding). + def user + @user + end + + # Returns the password component (without Gem::URI decoding). + def password + @password + end + + # Returns the user component after Gem::URI decoding. + def decoded_user + Gem::URI.decode_uri_component(@user) if @user + end + + # Returns the password component after Gem::URI decoding. + def decoded_password + Gem::URI.decode_uri_component(@password) if @password + end + + # + # Checks the host +v+ component for RFC2396 compliance + # and against the Gem::URI::Parser Regexp for :HOST. + # + # Can not have a registry or opaque component defined, + # with a host component defined. + # + def check_host(v) + return v unless v + + if @opaque + raise InvalidURIError, + "can not set host with registry or opaque" + elsif parser.regexp[:HOST] !~ v + raise InvalidComponentError, + "bad component(expected host component): #{v}" + end + + return true + end + private :check_host + + # Protected setter for the host component +v+. + # + # See also Gem::URI::Generic.host=. + # + def set_host(v) + @host = v + end + protected :set_host + + # + # == Args + # + # +v+:: + # String + # + # == Description + # + # Public setter for the host component +v+ + # (with validation). + # + # See also Gem::URI::Generic.check_host. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://my.example.com") + # uri.host = "foo.com" + # uri.to_s #=> "http://foo.com" + # + def host=(v) + check_host(v) + set_host(v) + v + end + + # Extract the host part of the Gem::URI and unwrap brackets for IPv6 addresses. + # + # This method is the same as Gem::URI::Generic#host except + # brackets for IPv6 (and future IP) addresses are removed. + # + # uri = Gem::URI("http://[::1]/bar") + # uri.hostname #=> "::1" + # uri.host #=> "[::1]" + # + def hostname + v = self.host + v&.start_with?('[') && v.end_with?(']') ? v[1..-2] : v + end + + # Sets the host part of the Gem::URI as the argument with brackets for IPv6 addresses. + # + # This method is the same as Gem::URI::Generic#host= except + # the argument can be a bare IPv6 address. + # + # uri = Gem::URI("http://foo/bar") + # uri.hostname = "::1" + # uri.to_s #=> "http://[::1]/bar" + # + # If the argument seems to be an IPv6 address, + # it is wrapped with brackets. + # + def hostname=(v) + v = "[#{v}]" if !(v&.start_with?('[') && v&.end_with?(']')) && v&.index(':') + self.host = v + end + + # + # Checks the port +v+ component for RFC2396 compliance + # and against the Gem::URI::Parser Regexp for :PORT. + # + # Can not have a registry or opaque component defined, + # with a port component defined. + # + def check_port(v) + return v unless v + + if @opaque + raise InvalidURIError, + "can not set port with registry or opaque" + elsif !v.kind_of?(Integer) && parser.regexp[:PORT] !~ v + raise InvalidComponentError, + "bad component(expected port component): #{v.inspect}" + end + + return true + end + private :check_port + + # Protected setter for the port component +v+. + # + # See also Gem::URI::Generic.port=. + # + def set_port(v) + v = v.empty? ? nil : v.to_i unless !v || v.kind_of?(Integer) + @port = v + end + protected :set_port + + # + # == Args + # + # +v+:: + # String + # + # == Description + # + # Public setter for the port component +v+ + # (with validation). + # + # See also Gem::URI::Generic.check_port. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://my.example.com") + # uri.port = 8080 + # uri.to_s #=> "http://my.example.com:8080" + # + def port=(v) + check_port(v) + set_port(v) + port + end + + def check_registry(v) # :nodoc: + raise InvalidURIError, "can not set registry" + end + private :check_registry + + def set_registry(v) #:nodoc: + raise InvalidURIError, "can not set registry" + end + protected :set_registry + + def registry=(v) + raise InvalidURIError, "can not set registry" + end + + # + # Checks the path +v+ component for RFC2396 compliance + # and against the Gem::URI::Parser Regexp + # for :ABS_PATH and :REL_PATH. + # + # Can not have a opaque component defined, + # with a path component defined. + # + def check_path(v) + # raise if both hier and opaque are not nil, because: + # absoluteURI = scheme ":" ( hier_part | opaque_part ) + # hier_part = ( net_path | abs_path ) [ "?" query ] + if v && @opaque + raise InvalidURIError, + "path conflicts with opaque" + end + + # If scheme is ftp, path may be relative. + # See RFC 1738 section 3.2.2, and RFC 2396. + if @scheme && @scheme != "ftp" + if v && v != '' && parser.regexp[:ABS_PATH] !~ v + raise InvalidComponentError, + "bad component(expected absolute path component): #{v}" + end + else + if v && v != '' && parser.regexp[:ABS_PATH] !~ v && + parser.regexp[:REL_PATH] !~ v + raise InvalidComponentError, + "bad component(expected relative path component): #{v}" + end + end + + return true + end + private :check_path + + # Protected setter for the path component +v+. + # + # See also Gem::URI::Generic.path=. + # + def set_path(v) + @path = v + end + protected :set_path + + # + # == Args + # + # +v+:: + # String + # + # == Description + # + # Public setter for the path component +v+ + # (with validation). + # + # See also Gem::URI::Generic.check_path. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://my.example.com/pub/files") + # uri.path = "/faq/" + # uri.to_s #=> "http://my.example.com/faq/" + # + def path=(v) + check_path(v) + set_path(v) + v + end + + # + # == Args + # + # +v+:: + # String + # + # == Description + # + # Public setter for the query component +v+. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://my.example.com/?id=25") + # uri.query = "id=1" + # uri.to_s #=> "http://my.example.com/?id=1" + # + def query=(v) + return @query = nil unless v + raise InvalidURIError, "query conflicts with opaque" if @opaque + + x = v.to_str + v = x.dup if x.equal? v + v.encode!(Encoding::UTF_8) rescue nil + v.delete!("\t\r\n") + v.force_encoding(Encoding::ASCII_8BIT) + raise InvalidURIError, "invalid percent escape: #{$1}" if /(%\H\H)/n.match(v) + v.gsub!(/(?!%\h\h|[!$-&(-;=?-_a-~])./n.freeze){'%%%02X' % $&.ord} + v.force_encoding(Encoding::US_ASCII) + @query = v + end + + # + # Checks the opaque +v+ component for RFC2396 compliance and + # against the Gem::URI::Parser Regexp for :OPAQUE. + # + # Can not have a host, port, user, or path component defined, + # with an opaque component defined. + # + def check_opaque(v) + return v unless v + + # raise if both hier and opaque are not nil, because: + # absoluteURI = scheme ":" ( hier_part | opaque_part ) + # hier_part = ( net_path | abs_path ) [ "?" query ] + if @host || @port || @user || @path # userinfo = @user + ':' + @password + raise InvalidURIError, + "can not set opaque with host, port, userinfo or path" + elsif v && parser.regexp[:OPAQUE] !~ v + raise InvalidComponentError, + "bad component(expected opaque component): #{v}" + end + + return true + end + private :check_opaque + + # Protected setter for the opaque component +v+. + # + # See also Gem::URI::Generic.opaque=. + # + def set_opaque(v) + @opaque = v + end + protected :set_opaque + + # + # == Args + # + # +v+:: + # String + # + # == Description + # + # Public setter for the opaque component +v+ + # (with validation). + # + # See also Gem::URI::Generic.check_opaque. + # + def opaque=(v) + check_opaque(v) + set_opaque(v) + v + end + + # + # Checks the fragment +v+ component against the Gem::URI::Parser Regexp for :FRAGMENT. + # + # + # == Args + # + # +v+:: + # String + # + # == Description + # + # Public setter for the fragment component +v+ + # (with validation). + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://my.example.com/?id=25#time=1305212049") + # uri.fragment = "time=1305212086" + # uri.to_s #=> "http://my.example.com/?id=25#time=1305212086" + # + def fragment=(v) + return @fragment = nil unless v + + x = v.to_str + v = x.dup if x.equal? v + v.encode!(Encoding::UTF_8) rescue nil + v.delete!("\t\r\n") + v.force_encoding(Encoding::ASCII_8BIT) + v.gsub!(/(?!%\h\h|[!-~])./n){'%%%02X' % $&.ord} + v.force_encoding(Encoding::US_ASCII) + @fragment = v + end + + # + # Returns true if Gem::URI is hierarchical. + # + # == Description + # + # Gem::URI has components listed in order of decreasing significance from left to right, + # see RFC3986 https://tools.ietf.org/html/rfc3986 1.2.3. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://my.example.com/") + # uri.hierarchical? + # #=> true + # uri = Gem::URI.parse("mailto:joe@example.com") + # uri.hierarchical? + # #=> false + # + def hierarchical? + if @path + true + else + false + end + end + + # + # Returns true if Gem::URI has a scheme (e.g. http:// or https://) specified. + # + def absolute? + if @scheme + true + else + false + end + end + alias absolute absolute? + + # + # Returns true if Gem::URI does not have a scheme (e.g. http:// or https://) specified. + # + def relative? + !absolute? + end + + # + # Returns an Array of the path split on '/'. + # + def split_path(path) + path.split("/", -1) + end + private :split_path + + # + # Merges a base path +base+, with relative path +rel+, + # returns a modified base path. + # + def merge_path(base, rel) + + # RFC2396, Section 5.2, 5) + # RFC2396, Section 5.2, 6) + base_path = split_path(base) + rel_path = split_path(rel) + + # RFC2396, Section 5.2, 6), a) + base_path << '' if base_path.last == '..' + while i = base_path.index('..') + base_path.slice!(i - 1, 2) + end + + if (first = rel_path.first) and first.empty? + base_path.clear + rel_path.shift + end + + # RFC2396, Section 5.2, 6), c) + # RFC2396, Section 5.2, 6), d) + rel_path.push('') if rel_path.last == '.' || rel_path.last == '..' + rel_path.delete('.') + + # RFC2396, Section 5.2, 6), e) + tmp = [] + rel_path.each do |x| + if x == '..' && + !(tmp.empty? || tmp.last == '..') + tmp.pop + else + tmp << x + end + end + + add_trailer_slash = !tmp.empty? + if base_path.empty? + base_path = [''] # keep '/' for root directory + elsif add_trailer_slash + base_path.pop + end + while x = tmp.shift + if x == '..' + # RFC2396, Section 4 + # a .. or . in an absolute path has no special meaning + base_path.pop if base_path.size > 1 + else + # if x == '..' + # valid absolute (but abnormal) path "/../..." + # else + # valid absolute path + # end + base_path << x + tmp.each {|t| base_path << t} + add_trailer_slash = false + break + end + end + base_path.push('') if add_trailer_slash + + return base_path.join('/') + end + private :merge_path + + # + # == Args + # + # +oth+:: + # Gem::URI or String + # + # == Description + # + # Destructive form of #merge. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://my.example.com") + # uri.merge!("/main.rbx?page=1") + # uri.to_s # => "http://my.example.com/main.rbx?page=1" + # + def merge!(oth) + t = merge(oth) + if self == t + nil + else + replace!(t) + self + end + end + + # + # == Args + # + # +oth+:: + # Gem::URI or String + # + # == Description + # + # Merges two URIs. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://my.example.com") + # uri.merge("/main.rbx?page=1") + # # => "http://my.example.com/main.rbx?page=1" + # + def merge(oth) + rel = parser.__send__(:convert_to_uri, oth) + + if rel.absolute? + #raise BadURIError, "both Gem::URI are absolute" if absolute? + # hmm... should return oth for usability? + return rel + end + + unless self.absolute? + raise BadURIError, "both Gem::URI are relative" + end + + base = self.dup + + authority = rel.userinfo || rel.host || rel.port + + # RFC2396, Section 5.2, 2) + if (rel.path.nil? || rel.path.empty?) && !authority && !rel.query + base.fragment=(rel.fragment) if rel.fragment + return base + end + + base.query = nil + base.fragment=(nil) + + # RFC2396, Section 5.2, 4) + if !authority + base.set_path(merge_path(base.path, rel.path)) if base.path && rel.path + else + # RFC2396, Section 5.2, 4) + base.set_path(rel.path) if rel.path + end + + # RFC2396, Section 5.2, 7) + base.set_userinfo(rel.userinfo) if rel.userinfo + base.set_host(rel.host) if rel.host + base.set_port(rel.port) if rel.port + base.query = rel.query if rel.query + base.fragment=(rel.fragment) if rel.fragment + + return base + end # merge + alias + merge + + # :stopdoc: + def route_from_path(src, dst) + case dst + when src + # RFC2396, Section 4.2 + return '' + when %r{(?:\A|/)\.\.?(?:/|\z)} + # dst has abnormal absolute path, + # like "/./", "/../", "/x/../", ... + return dst.dup + end + + src_path = src.scan(%r{[^/]*/}) + dst_path = dst.scan(%r{[^/]*/?}) + + # discard same parts + while !dst_path.empty? && dst_path.first == src_path.first + src_path.shift + dst_path.shift + end + + tmp = dst_path.join + + # calculate + if src_path.empty? + if tmp.empty? + return './' + elsif dst_path.first.include?(':') # (see RFC2396 Section 5) + return './' + tmp + else + return tmp + end + end + + return '../' * src_path.size + tmp + end + private :route_from_path + # :startdoc: + + # :stopdoc: + def route_from0(oth) + oth = parser.__send__(:convert_to_uri, oth) + if self.relative? + raise BadURIError, + "relative Gem::URI: #{self}" + end + if oth.relative? + raise BadURIError, + "relative Gem::URI: #{oth}" + end + + if self.scheme != oth.scheme + return self, self.dup + end + rel = Gem::URI::Generic.new(nil, # it is relative Gem::URI + self.userinfo, self.host, self.port, + nil, self.path, self.opaque, + self.query, self.fragment, parser) + + if rel.userinfo != oth.userinfo || + rel.host.to_s.downcase != oth.host.to_s.downcase || + rel.port != oth.port + + if self.userinfo.nil? && self.host.nil? + return self, self.dup + end + + rel.set_port(nil) if rel.port == oth.default_port + return rel, rel + end + rel.set_userinfo(nil) + rel.set_host(nil) + rel.set_port(nil) + + if rel.path && rel.path == oth.path + rel.set_path('') + rel.query = nil if rel.query == oth.query + return rel, rel + elsif rel.opaque && rel.opaque == oth.opaque + rel.set_opaque('') + rel.query = nil if rel.query == oth.query + return rel, rel + end + + # you can modify `rel', but can not `oth'. + return oth, rel + end + private :route_from0 + # :startdoc: + + # + # == Args + # + # +oth+:: + # Gem::URI or String + # + # == Description + # + # Calculates relative path from oth to self. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse('http://my.example.com/main.rbx?page=1') + # uri.route_from('http://my.example.com') + # #=> #<Gem::URI::Generic /main.rbx?page=1> + # + def route_from(oth) + # you can modify `rel', but can not `oth'. + begin + oth, rel = route_from0(oth) + rescue + raise $!.class, $!.message + end + if oth == rel + return rel + end + + rel.set_path(route_from_path(oth.path, self.path)) + if rel.path == './' && self.query + # "./?foo" -> "?foo" + rel.set_path('') + end + + return rel + end + + alias - route_from + + # + # == Args + # + # +oth+:: + # Gem::URI or String + # + # == Description + # + # Calculates relative path to oth from self. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse('http://my.example.com') + # uri.route_to('http://my.example.com/main.rbx?page=1') + # #=> #<Gem::URI::Generic /main.rbx?page=1> + # + def route_to(oth) + parser.__send__(:convert_to_uri, oth).route_from(self) + end + + # + # Returns normalized Gem::URI. + # + # require 'rubygems/vendor/uri/lib/uri' + # + # Gem::URI("HTTP://my.EXAMPLE.com").normalize + # #=> #<Gem::URI::HTTP http://my.example.com/> + # + # Normalization here means: + # + # * scheme and host are converted to lowercase, + # * an empty path component is set to "/". + # + def normalize + uri = dup + uri.normalize! + uri + end + + # + # Destructive version of #normalize. + # + def normalize! + if path&.empty? + set_path('/') + end + if scheme && scheme != scheme.downcase + set_scheme(self.scheme.downcase) + end + if host && host != host.downcase + set_host(self.host.downcase) + end + end + + # + # Constructs String from Gem::URI. + # + def to_s + str = ''.dup + if @scheme + str << @scheme + str << ':' + end + + if @opaque + str << @opaque + else + if @host || %w[file postgres].include?(@scheme) + str << '//' + end + if self.userinfo + str << self.userinfo + str << '@' + end + if @host + str << @host + end + if @port && @port != self.default_port + str << ':' + str << @port.to_s + end + str << @path + if @query + str << '?' + str << @query + end + end + if @fragment + str << '#' + str << @fragment + end + str + end + alias to_str to_s + + # + # Compares two URIs. + # + def ==(oth) + if self.class == oth.class + self.normalize.component_ary == oth.normalize.component_ary + else + false + end + end + + def hash + self.component_ary.hash + end + + def eql?(oth) + self.class == oth.class && + parser == oth.parser && + self.component_ary.eql?(oth.component_ary) + end + +=begin + +--- Gem::URI::Generic#===(oth) + +=end +# def ===(oth) +# raise NotImplementedError +# end + +=begin +=end + + + # Returns an Array of the components defined from the COMPONENT Array. + def component_ary + component.collect do |x| + self.__send__(x) + end + end + protected :component_ary + + # == Args + # + # +components+:: + # Multiple Symbol arguments defined in Gem::URI::HTTP. + # + # == Description + # + # Selects specified components from Gem::URI. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse('http://myuser:mypass@my.example.com/test.rbx') + # uri.select(:userinfo, :host, :path) + # # => ["myuser:mypass", "my.example.com", "/test.rbx"] + # + def select(*components) + components.collect do |c| + if component.include?(c) + self.__send__(c) + else + raise ArgumentError, + "expected of components of #{self.class} (#{self.class.component.join(', ')})" + end + end + end + + def inspect + "#<#{self.class} #{self}>" + end + + # + # == Args + # + # +v+:: + # Gem::URI or String + # + # == Description + # + # Attempts to parse other Gem::URI +oth+, + # returns [parsed_oth, self]. + # + # == Usage + # + # require 'rubygems/vendor/uri/lib/uri' + # + # uri = Gem::URI.parse("http://my.example.com") + # uri.coerce("http://foo.com") + # #=> [#<Gem::URI::HTTP http://foo.com>, #<Gem::URI::HTTP http://my.example.com>] + # + def coerce(oth) + case oth + when String + oth = parser.parse(oth) + else + super + end + + return oth, self + end + + # Returns a proxy Gem::URI. + # The proxy Gem::URI is obtained from environment variables such as http_proxy, + # ftp_proxy, no_proxy, etc. + # If there is no proper proxy, nil is returned. + # + # If the optional parameter +env+ is specified, it is used instead of ENV. + # + # Note that capitalized variables (HTTP_PROXY, FTP_PROXY, NO_PROXY, etc.) + # are examined, too. + # + # But http_proxy and HTTP_PROXY is treated specially under CGI environment. + # It's because HTTP_PROXY may be set by Proxy: header. + # So HTTP_PROXY is not used. + # http_proxy is not used too if the variable is case insensitive. + # CGI_HTTP_PROXY can be used instead. + def find_proxy(env=ENV) + raise BadURIError, "relative Gem::URI: #{self}" if self.relative? + name = self.scheme.downcase + '_proxy' + proxy_uri = nil + if name == 'http_proxy' && env.include?('REQUEST_METHOD') # CGI? + # HTTP_PROXY conflicts with *_proxy for proxy settings and + # HTTP_* for header information in CGI. + # So it should be careful to use it. + pairs = env.reject {|k, v| /\Ahttp_proxy\z/i !~ k } + case pairs.length + when 0 # no proxy setting anyway. + proxy_uri = nil + when 1 + k, _ = pairs.shift + if k == 'http_proxy' && env[k.upcase] == nil + # http_proxy is safe to use because ENV is case sensitive. + proxy_uri = env[name] + else + proxy_uri = nil + end + else # http_proxy is safe to use because ENV is case sensitive. + proxy_uri = env.to_hash[name] + end + if !proxy_uri + # Use CGI_HTTP_PROXY. cf. libwww-perl. + proxy_uri = env["CGI_#{name.upcase}"] + end + elsif name == 'http_proxy' + if RUBY_ENGINE == 'jruby' && p_addr = ENV_JAVA['http.proxyHost'] + p_port = ENV_JAVA['http.proxyPort'] + if p_user = ENV_JAVA['http.proxyUser'] + p_pass = ENV_JAVA['http.proxyPass'] + proxy_uri = "http://#{p_user}:#{p_pass}@#{p_addr}:#{p_port}" + else + proxy_uri = "http://#{p_addr}:#{p_port}" + end + else + unless proxy_uri = env[name] + if proxy_uri = env[name.upcase] + warn 'The environment variable HTTP_PROXY is discouraged. Use http_proxy.', uplevel: 1 + end + end + end + else + proxy_uri = env[name] || env[name.upcase] + end + + if proxy_uri.nil? || proxy_uri.empty? + return nil + end + + if self.hostname + begin + addr = IPSocket.getaddress(self.hostname) + return nil if /\A127\.|\A::1\z/ =~ addr + rescue SocketError + end + end + + name = 'no_proxy' + if no_proxy = env[name] || env[name.upcase] + return nil unless Gem::URI::Generic.use_proxy?(self.hostname, addr, self.port, no_proxy) + end + Gem::URI.parse(proxy_uri) + end + + def self.use_proxy?(hostname, addr, port, no_proxy) # :nodoc: + hostname = hostname.downcase + dothostname = ".#{hostname}" + no_proxy.scan(/([^:,\s]+)(?::(\d+))?/) {|p_host, p_port| + if !p_port || port == p_port.to_i + if p_host.start_with?('.') + return false if hostname.end_with?(p_host.downcase) + else + return false if dothostname.end_with?(".#{p_host.downcase}") + end + if addr + begin + return false if IPAddr.new(p_host).include?(addr) + rescue IPAddr::InvalidAddressError + next + end + end + end + } + true + end + end +end |