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Class: URI::Generic

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Subclasses:
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
Inherits: Object
Defined in: lib/uri/generic.rb

Overview

Base class for all ::URI classes. Implements generic ::URI syntax as per RFC 2396.

Constant Summary

::URI - Included

DEFAULT_PARSER, Parser, REGEXP, RFC3986_PARSER, TBLDECWWWCOMP_, TBLENCWWWCOMP_, VERSION, VERSION_CODE, WEB_ENCODINGS_

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(scheme, userinfo, host, port, registry, path, opaque, query, fragment, parser = DEFAULT_PARSER, arg_check = false) ⇒ Generic

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 URI after ‘#’ character.

#parser

Parser for internal use [URI::DEFAULT_PARSER by default].

arg_check

Check arguments [false by default].

Description

Creates a new Generic instance from “generic” components without check.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 170

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

Class Method Details

.build(args)

Synopsis

See .new.

Description

Creates a new Generic instance from components of 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.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 117

def self.build(args)
  if args.kind_of?(Array) &&
      args.size == ::URI::Generic::COMPONENT.size
    tmp = args.dup
  elsif args.kind_of?(Hash)
    tmp = ::URI::Generic::COMPONENT.collect do |c|
      if args.include?(c)
        args[c]
      else
        nil
      end
    end
  else
    component = self.class.component rescue ::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

.build2(args)

Synopsis

See .new.

Description

At first, tries to create a new Generic instance using .build. But, if exception InvalidComponentError is raised, then it does URI::Escape.escape all ::URI components and tries again.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 79

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

.component

Components of the ::URI in the order.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 58

def self.component
  self::COMPONENT
end

.default_port

Returns default port.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 33

def self.default_port
  self::DEFAULT_PORT
end

.use_proxy?(hostname, addr, port, no_proxy) ⇒ Boolean

This method is for internal use only.
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1545

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

.use_registry

This method is for internal use only.
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 64

def self.use_registry # :nodoc:
  self::USE_REGISTRY
end

Instance Attribute Details

#absolute (readonly)

Alias for #absolute?.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 969

alias absolute absolute?

#fragment (rw)

Returns the fragment component of the ::URI.

URI("http://foo/bar/baz?search=FooBar#ponies").fragment #=> "ponies"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 284

attr_reader :fragment

#fragment=(v) (rw)

Checks the fragment v component against the Parser Regexp for :FRAGMENT.

Args

v

String

Description

Public setter for the fragment component v (with validation).

Usage

require 'uri'

uri = 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"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 919

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

#hierarchical?Boolean (readonly)

Returns true if ::URI is hierarchical.

Description

::URI has components listed in order of decreasing significance from left to right, see RFC3986 tools.ietf.org/html/rfc3986 1.2.3.

Usage

require 'uri'

uri = URI.parse("http://my.example.com/")
uri.hierarchical?
#=> true
uri = URI.parse("mailto:joe@example.com")
uri.hierarchical?
#=> false
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 951

def hierarchical?
  if @path
    true
  else
    false
  end
end

#host (rw)

Returns the host component of the ::URI.

URI("http://foo/bar/baz").host #=> "foo"

It returns nil if no host component exists.

URI("mailto:foo@example.org").host #=> nil

The component does not contain the port number.

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.

URI("http://[::1]/bar/baz").host     #=> "[::1]"
URI("http://[::1]/bar/baz").hostname #=> "::1"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 244

attr_reader :host

#host=(v) (rw)

Args

v

String

Description

Public setter for the host component v (with validation).

See also #check_host.

Usage

require 'uri'

uri = URI.parse("http://my.example.com")
uri.host = "foo.com"
uri.to_s  #=> "http://foo.com"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 630

def host=(v)
  check_host(v)
  set_host(v)
  v
end

#hostname (rw)

Extract the host part of the ::URI and unwrap brackets for IPv6 addresses.

This method is the same as #host except brackets for IPv6 (and future IP) addresses are removed.

uri = URI("http://[::1]/bar")
uri.hostname      #=> "::1"
uri.host          #=> "[::1]"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 645

def hostname
  v = self.host
  /\A\[(.*)\]\z/ =~ v ? $1 : v
end

#hostname=(v) (rw)

Sets the host part of the ::URI as the argument with brackets for IPv6 addresses.

This method is the same as #host= except the argument can be a bare IPv6 address.

uri = 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.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 662

def hostname=(v)
  v = "[#{v}]" if /\A\[.*\]\z/ !~ v && /:/ =~ v
  self.host = v
end

#opaque (rw)

Returns the opaque part of the ::URI.

URI("mailto:foo@example.org").opaque #=> "foo@example.org"
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.)

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 278

attr_reader :opaque

#opaque=(v) (rw)

Args

v

String

Description

Public setter for the opaque component v (with validation).

See also #check_opaque.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 891

def opaque=(v)
  check_opaque(v)
  set_opaque(v)
  v
end

#password (rw)

Returns the password component.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 574

def password
  @password
end

#password=(password) (rw)

Args

v

String

Description

Public setter for the #password component (with validation).

See also #check_password.

Usage

require 'uri'

uri = URI.parse("http://john:S3nsit1ve@my.example.com")
uri.password = "V3ry_S3nsit1ve"
uri.to_s  #=> "http://john:V3ry_S3nsit1ve@my.example.com"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 499

def password=(password)
  check_password(password)
  set_password(password)
  # returns password
end

#path (rw)

Returns the path component of the ::URI.

URI("http://foo/bar/baz").path #=> "/bar/baz"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 261

attr_reader :path

#path=(v) (rw)

Args

v

String

Description

Public setter for the path component v (with validation).

See also #check_path.

Usage

require 'uri'

uri = URI.parse("http://my.example.com/pub/files")
uri.path = "/faq/"
uri.to_s  #=> "http://my.example.com/faq/"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 806

def path=(v)
  check_path(v)
  set_path(v)
  v
end

#port (rw)

Returns the port component of the ::URI.

URI("http://foo/bar/baz").port      #=> 80
URI("http://foo:8080/bar/baz").port #=> 8080
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 251

attr_reader :port

#port=(v) (rw)

Args

v

String

Description

Public setter for the port component v (with validation).

See also #check_port.

Usage

require 'uri'

uri = URI.parse("http://my.example.com")
uri.port = 8080
uri.to_s  #=> "http://my.example.com:8080"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 720

def port=(v)
  check_port(v)
  set_port(v)
  port
end

#query (rw)

Returns the query component of the ::URI.

URI("http://foo/bar/baz?search=FooBar").query #=> "search=FooBar"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 267

attr_reader :query

#query=(v) (rw)

Args

v

String

Description

Public setter for the query component v.

Usage

require 'uri'

uri = URI.parse("http://my.example.com/?id=25")
uri.query = "id=1"
uri.to_s  #=> "http://my.example.com/?id=1"

Raises:

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 830

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)
  v.gsub!(/(?!%\h\h|[!$-&(-;=?-_a-~])./n.freeze){'%%%02X' % $&.ord}
  v.force_encoding(Encoding::US_ASCII)
  @query = v
end

#registry (rw)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 253

def registry # :nodoc:
  nil
end

#registry=(v) (rw)

Raises:

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 736

def registry=(v)
  raise InvalidURIError, "can not set registry"
end

#relative?Boolean (readonly)

Returns true if ::URI does not have a scheme (e.g. http:// or https://) specified.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 974

def relative?
  !absolute?
end

#scheme (rw)

Returns the scheme component of the ::URI.

URI("http://foo/bar/baz").scheme #=> "http"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 222

attr_reader :scheme

#scheme=(v) (rw)

Args

v

String

Description

Public setter for the scheme component v (with validation).

See also #check_scheme.

Usage

require 'uri'

uri = URI.parse("http://my.example.com")
uri.scheme = "https"
uri.to_s  #=> "https://my.example.com"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 361

def scheme=(v)
  check_scheme(v)
  set_scheme(v)
  v
end

#user (rw)

Returns the user component.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 569

def user
  @user
end

#user=(user) (rw)

Args

v

String

Description

Public setter for the #user component (with validation).

See also #check_user.

Usage

require 'uri'

uri = URI.parse("http://john:S3nsit1ve@my.example.com")
uri.user = "sam"
uri.to_s  #=> "http://sam:V3ry_S3nsit1ve@my.example.com"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 472

def user=(user)
  check_user(user)
  set_user(user)
  # returns user
end

#userinfo (rw)

Returns the userinfo, either as ‘user’ or ‘user:password’.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 558

def userinfo
  if @user.nil?
    nil
  elsif @password.nil?
    @user
  else
    @user + ':' + @password
  end
end

#userinfo=(userinfo) (rw)

Sets userinfo, argument is string like ‘name:pass’.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 442

def userinfo=(userinfo)
  if userinfo.nil?
    return nil
  end
  check_userinfo(*userinfo)
  set_userinfo(*userinfo)
  # returns userinfo
end

Instance Method Details

#+(oth)

Alias for #merge.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1142

alias + merge

#-(oth)

Alias for #route_from.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1272

alias - route_from

#==(oth)

Compares two URIs.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1373

def ==(oth)
  if self.class == oth.class
    self.normalize.component_ary == oth.normalize.component_ary
  else
    false
  end
end

#absolute?Boolean (readonly) Also known as: #absolute

Returns true if ::URI has a scheme (e.g. http:// or https://) specified.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 962

def absolute?
  if @scheme
    true
  else
    false
  end
end

#check_host(v) (private)

Checks the host v component for RFC2396 compliance and against the Parser Regexp for :HOST.

Can not have a registry or opaque component defined, with a host component defined.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 585

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

#check_opaque(v) (private)

Checks the opaque v component for RFC2396 compliance and against the Parser Regexp for :OPAQUE.

Can not have a host, port, user, or path component defined, with an opaque component defined.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 851

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

#check_password(v, user = @user) (private)

Checks the password v component for RFC2396 compliance and against the Parser Regexp for :USERINFO.

Can not have a registry or opaque component defined, with a user component defined.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 418

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

#check_path(v) (private)

Checks the path v component for RFC2396 compliance and against the Parser Regexp for :ABS_PATH and :REL_PATH.

Can not have a opaque component defined, with a path component defined.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 748

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

#check_port(v) (private)

Checks the port v component for RFC2396 compliance and against the Parser Regexp for :PORT.

Can not have a registry or opaque component defined, with a port component defined.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 674

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

#check_registry(v) (private)

This method is for internal use only.

Raises:

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 726

def check_registry(v) # :nodoc:
  raise InvalidURIError, "can not set registry"
end

#check_scheme(v) (private)

Checks the scheme v component against the Parser Regexp for :SCHEME.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 321

def check_scheme(v)
  if v && parser.regexp[:SCHEME] !~ v
    raise InvalidComponentError,
      "bad component(expected scheme component): #{v}"
  end

  return true
end

#check_user(v) (private)

Checks the user v component for RFC2396 compliance and against the Parser Regexp for :USERINFO.

Can not have a registry or opaque component defined, with a user component defined.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 394

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

#check_userinfo(user, password = nil) (private)

Checks the #user and #password.

If #password is not provided, then #user is split, using #split_userinfo, to pull #user and +password.

See also #check_user, #check_password.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 376

def check_userinfo(user, password = nil)
  if !password
    user, password = split_userinfo(user)
  end
  check_user(user)
  check_password(password, user)

  return true
end

#coerce(oth)

Args

v

URI or String

Description

Attempts to parse other ::URI oth, returns [parsed_oth, self].

Usage

require 'uri'

uri = URI.parse("http://my.example.com")
uri.coerce("http://foo.com")
#=> [#<URI::HTTP http://foo.com>, #<URI::HTTP http://my.example.com>]
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1463

def coerce(oth)
  case oth
  when String
    oth = parser.parse(oth)
  else
    super
  end

  return oth, self
end

#component

Components of the ::URI in the order.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 314

def component
  self.class.component
end

#component_ary (protected)

Returns an Array of the components defined from the COMPONENT Array.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1405

def component_ary
  component.collect do |x|
    self.send(x)
  end
end

#default_port

Returns default port.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 40

def default_port
  self.class.default_port
end

#eql?(oth) ⇒ Boolean

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1385

def eql?(oth)
  self.class == oth.class &&
  parser == oth.parser &&
  self.component_ary.eql?(oth.component_ary)
end

#escape_userpass(v) (private)

Escapes ‘user:password’ v based on RFC 1738 section 3.1.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 552

def escape_userpass(v)
  parser.escape(v, /[@:\/]/o) # RFC 1738 section 3.1 #/
end

#find_proxy(env = ENV)

Returns a proxy ::URI. The proxy ::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.

Raises:

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1489

def find_proxy(env=ENV)
  raise BadURIError, "relative 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'
    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
  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 URI::Generic.use_proxy?(self.hostname, addr, self.port, no_proxy)
  end
  URI.parse(proxy_uri)
end

#hash

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1381

def hash
  self.component_ary.hash
end

#inspect

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1440

def inspect
  "#<#{self.class} #{self}>"
end

#merge(oth) Also known as: #+

Args

oth

URI or String

Description

Merges two URIs.

Usage

require 'uri'

uri = URI.parse("http://my.example.com")
uri.merge("/main.rbx?page=1")
# => "http://my.example.com/main.rbx?page=1"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1099

def merge(oth)
  rel = parser.send(:convert_to_uri, oth)

  if rel.absolute?
    #raise BadURIError, "both URI are absolute" if absolute?
    # hmm... should return oth for usability?
    return rel
  end

  unless self.absolute?
    raise BadURIError, "both 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!(oth)

Args

oth

URI or String

Description

Destructive form of #merge.

Usage

require 'uri'

uri = URI.parse("http://my.example.com")
uri.merge!("/main.rbx?page=1")
uri.to_s  # => "http://my.example.com/main.rbx?page=1"
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1071

def merge!(oth)
  t = merge(oth)
  if self == t
    nil
  else
    replace!(t)
    self
  end
end

#merge_path(base, rel) (private)

Merges a base path base, with relative path rel, returns a modified base path.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 990

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

#normalize

Returns normalized ::URI.

require 'uri'

URI("HTTP://my.EXAMPLE.com").normalize
#=> #<URI::HTTP http://my.example.com/>

Normalization here means:

  • scheme and host are converted to lowercase,

  • an empty path component is set to “/”.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1309

def normalize
  uri = dup
  uri.normalize!
  uri
end

#normalize!

Destructive version of #normalize.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1318

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

#parser

Returns the parser to be used.

Unless a Parser is defined, DEFAULT_PARSER is used.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 290

def parser
  if !defined?(@parser) || !@parser
    DEFAULT_PARSER
  else
    @parser || DEFAULT_PARSER
  end
end

#replace!(oth) (private)

Replaces self by other ::URI object.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 300

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

#route_from(oth) Also known as: #-

Args

oth

URI or String

Description

Calculates relative path from oth to self.

Usage

require 'uri'

uri = URI.parse('http://my.example.com/main.rbx?page=1')
uri.route_from('http://my.example.com')
#=> #<URI::Generic /main.rbx?page=1>
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1252

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

#route_from0(oth) (private)

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1184

def route_from0(oth)
  oth = parser.send(:convert_to_uri, oth)
  if self.relative?
    raise BadURIError,
      "relative URI: #{self}"
  end
  if oth.relative?
    raise BadURIError,
      "relative URI: #{oth}"
  end

  if self.scheme != oth.scheme
    return self, self.dup
  end
  rel = URI::Generic.new(nil, # it is relative 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

#route_from_path(src, dst) (private)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1145

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

#route_to(oth)

Args

oth

URI or String

Description

Calculates relative path to oth from self.

Usage

require 'uri'

uri = URI.parse('http://my.example.com')
uri.route_to('http://my.example.com/main.rbx?page=1')
#=> #<URI::Generic /main.rbx?page=1>
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1292

def route_to(oth)
  parser.send(:convert_to_uri, oth).route_from(self)
end

#select(*components)

Args

components

Multiple Symbol arguments defined in URI::HTTP.

Description

Selects specified components from ::URI.

Usage

require 'uri'

uri = URI.parse('http://myuser:mypass@my.example.com/test.rbx')
uri.select(:userinfo, :host, :path)
# => ["myuser:mypass", "my.example.com", "/test.rbx"]
[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1429

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

#set_host(v) (protected)

Protected setter for the host component v.

See also #host=.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 604

def set_host(v)
  @host = v
end

#set_opaque(v) (protected)

Protected setter for the opaque component v.

See also #opaque=.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 873

def set_opaque(v)
  @opaque = v
end

#set_password(v) (protected)

Protected setter for the password component v.

See also #password=.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 535

def set_password(v)
  @password = v
  # returns v
end

#set_path(v) (protected)

Protected setter for the path component v.

See also #path=.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 780

def set_path(v)
  @path = v
end

#set_port(v) (protected)

Protected setter for the port component v.

See also #port=.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 693

def set_port(v)
  v = v.empty? ? nil : v.to_i unless !v || v.kind_of?(Integer)
  @port = v
end

#set_registry(v) (protected)

This method is for internal use only.

Raises:

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 731

def set_registry(v) #:nodoc:
  raise InvalidURIError, "can not set registry"
end

#set_scheme(v) (protected)

Protected setter for the scheme component v.

See also #scheme=.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 335

def set_scheme(v)
  @scheme = v&.downcase
end

#set_user(v) (protected)

Protected setter for the user component v.

See also #user=.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 525

def set_user(v)
  set_userinfo(v, @password)
  v
end

#set_userinfo(user, password = nil) (protected)

Protected setter for the #user component, and #password if available (with validation).

See also #userinfo=.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 510

def set_userinfo(user, password = nil)
  unless password
    user, password = split_userinfo(user)
  end
  @user     = user
  @password = password if password

  [@user, @password]
end

#split_path(path) (private)

Returns an Array of the path split on ‘/’.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 981

def split_path(path)
  path.split("/", -1)
end

#split_userinfo(ui) (private)

Returns the userinfo ui as [user, password] if properly formatted as ‘user:password’.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 543

def split_userinfo(ui)
  return nil, nil unless ui
  user, password = ui.split(':', 2)

  return user, password
end

#to_s

Constructs String from ::URI.

[ GitHub ]

  
# File 'lib/uri/generic.rb', line 1333

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