Module: URI

Relationships & Source Files
Namespace Children
Modules: `RFC2396_REGEXP`, `Schemes`, `Util`
Classes: `FTP`, `File`, `Generic`, `HTTP`, `HTTPS`, `LDAP`, `LDAPS`, `MailTo`, `RFC2396_Parser`, `RFC3986_Parser`, `WS`, `WSS`
Exceptions: `BadURIError`, `Error`, `InvalidComponentError`, `InvalidURIError`
Extension / Inclusion / Inheritance Descendants
Included In: `FTP`, `File`, `Generic`, `HTTP`, `HTTPS`, `LDAP`, `LDAPS`, `MailTo`, `WS`, `WSS`
Super Chains via Extension / Inclusion / Inheritance
Instance Chain: self, `RFC2396_REGEXP`
Defined in:	lib/uri.rb, lib/uri/common.rb, lib/uri/file.rb, lib/uri/ftp.rb, lib/uri/generic.rb, lib/uri/http.rb, lib/uri/https.rb, lib/uri/ldap.rb, lib/uri/ldaps.rb, lib/uri/mailto.rb, lib/uri/rfc2396_parser.rb, lib/uri/rfc3986_parser.rb, lib/uri/version.rb, lib/uri/ws.rb, lib/uri/wss.rb

Overview

URI is a module providing classes to handle Uniform Resource Identifiers (RFC2396).

Features

Uniform way of handling URIs.
Flexibility to introduce custom URI schemes.
Flexibility to have an alternate Parser (or just different patterns and regexp’s).

Basic example

require 'uri'

uri = URI("http://foo.com/posts?id=30&limit=5#time=1305298413")
#=> #<URI::HTTP http://foo.com/posts?id=30&limit=5#time=1305298413>

uri.scheme    #=> "http"
uri.host      #=> "foo.com"
uri.path      #=> "/posts"
uri.query     #=> "id=30&limit=5"
uri.fragment  #=> "time=1305298413"

uri.to_s      #=> "http://foo.com/posts?id=30&limit=5#time=1305298413"

Adding custom URIs

module URI
  class RSYNC < Generic
    DEFAULT_PORT = 873
  end
  register_scheme 'RSYNC', RSYNC
end
#=> URI::RSYNC

URI.scheme_list
#=> {"FILE"=>URI::File, "FTP"=>URI::FTP, "HTTP"=>URI::HTTP,
#    "HTTPS"=>URI::HTTPS, "LDAP"=>URI::LDAP, "LDAPS"=>URI::LDAPS,
#    "MAILTO"=>URI::MailTo, "RSYNC"=>URI::RSYNC}

uri = URI("rsync://rsync.foo.com")
#=> #<URI::RSYNC rsync://rsync.foo.com>

RFC References

A good place to view an RFC spec is www.ietf.org/rfc.html.

Here is a list of all related RFC’s:

Class tree

Generic (in uri/generic.rb)
- URI::File - (in uri/file.rb)
- URI::FTP - (in uri/ftp.rb)
- URI::HTTP - (in uri/http.rb)
  - URI::HTTPS - (in uri/https.rb)
- URI::LDAP - (in uri/ldap.rb)
  - URI::LDAPS - (in uri/ldaps.rb)
- URI::MailTo - (in uri/mailto.rb)
Parser - (in uri/common.rb)
REGEXP - (in uri/common.rb)
- URI::REGEXP::PATTERN - (in uri/common.rb)
Util - (in uri/common.rb)
Error - (in uri/common.rb)
- URI::InvalidURIError - (in uri/common.rb)
- URI::InvalidComponentError - (in uri/common.rb)
- URI::BadURIError - (in uri/common.rb)

Copyright Info

Author: Akira Yamada <akira@ruby-lang.org>
Documentation: Akira Yamada <akira@ruby-lang.org> Dmitry V. Sabanin <sdmitry@lrn.ru> Vincent Batts <vbatts@hashbangbash.com>
License: Copyright © 2001 akira yamada <akira@ruby-lang.org> You can redistribute it and/or modify it under the same term as Ruby.

Constant Summary

DEFAULT_PARSER =

URI::Parser.new

# File 'lib/uri/common.rb', line 26
```
Parser.new
```
INITIAL_SCHEMES = private
# File 'lib/uri/common.rb', line 89
```
scheme_list
```
Parser =
# File 'lib/uri/common.rb', line 19
```
RFC2396_Parser
```
REGEXP =
# File 'lib/uri/common.rb', line 18
```
RFC2396_REGEXP
```
RFC2396_PARSER =
# File 'lib/uri/common.rb', line 22
```
RFC2396_Parser.new
```
RFC3986_PARSER =
# File 'lib/uri/common.rb', line 20
```
RFC3986_Parser.new
```
TBLDECWWWCOMP_ = Internal use only
# File 'lib/uri/common.rb', line 308
```
{}
```
TBLENCURICOMP_ =
# File 'lib/uri/common.rb', line 305
```
TBLENCWWWCOMP_.dup.freeze
```
TBLENCWWWCOMP_ = Internal use only
# File 'lib/uri/common.rb', line 301
```
{}
```

VERSION = Internal use only
# File 'lib/uri/version.rb', line 4

VERSION_CODE.scan(/../).collect{|n| n.to_i}.join('.').freeze

VERSION_CODE = Internal use only
# File 'lib/uri/version.rb', line 3
```
'001203'.freeze
```

WEB_ENCODINGS_ = Internal use only

curl encoding.spec.whatwg.org/encodings.json|

ruby -rjson -e 'H={}
h={
  "shift_jis"=>"Windows-31J",
  "euc-jp"=>"cp51932",
  "iso-2022-jp"=>"cp50221",
  "x-mac-cyrillic"=>"macCyrillic",
}
JSON($<.read).map{|x|x["encodings"]}.flatten.each{|x|
  Encoding.find(n=h.fetch(n=x["name"].downcase,n))rescue next
  x["labels"].each{|y|H[y]=n}
}
puts "{"
H.each{|k,v|puts %[  #{k.dump}=>#{v.dump},]}
puts "}"

‘

# File 'lib/uri/common.rb', line 498

{
  "unicode-1-1-utf-8"=>"utf-8",
  "utf-8"=>"utf-8",
  "utf8"=>"utf-8",
  "866"=>"ibm866",
  "cp866"=>"ibm866",
  "csibm866"=>"ibm866",
  "ibm866"=>"ibm866",
  "csisolatin2"=>"iso-8859-2",
  "iso-8859-2"=>"iso-8859-2",
  "iso-ir-101"=>"iso-8859-2",
  "iso8859-2"=>"iso-8859-2",
  "iso88592"=>"iso-8859-2",
  "iso_8859-2"=>"iso-8859-2",
  "iso_8859-2:1987"=>"iso-8859-2",
  "l2"=>"iso-8859-2",
  "latin2"=>"iso-8859-2",
  "csisolatin3"=>"iso-8859-3",
  "iso-8859-3"=>"iso-8859-3",
  "iso-ir-109"=>"iso-8859-3",
  "iso8859-3"=>"iso-8859-3",
  "iso88593"=>"iso-8859-3",
  "iso_8859-3"=>"iso-8859-3",
  "iso_8859-3:1988"=>"iso-8859-3",
  "l3"=>"iso-8859-3",
  "latin3"=>"iso-8859-3",
  "csisolatin4"=>"iso-8859-4",
  "iso-8859-4"=>"iso-8859-4",
  "iso-ir-110"=>"iso-8859-4",
  "iso8859-4"=>"iso-8859-4",
  "iso88594"=>"iso-8859-4",
  "iso_8859-4"=>"iso-8859-4",
  "iso_8859-4:1988"=>"iso-8859-4",
  "l4"=>"iso-8859-4",
  "latin4"=>"iso-8859-4",
  "csisolatincyrillic"=>"iso-8859-5",
  "cyrillic"=>"iso-8859-5",
  "iso-8859-5"=>"iso-8859-5",
  "iso-ir-144"=>"iso-8859-5",
  "iso8859-5"=>"iso-8859-5",
  "iso88595"=>"iso-8859-5",
  "iso_8859-5"=>"iso-8859-5",
  "iso_8859-5:1988"=>"iso-8859-5",
  "arabic"=>"iso-8859-6",
  "asmo-708"=>"iso-8859-6",
  "csiso88596e"=>"iso-8859-6",
  "csiso88596i"=>"iso-8859-6",
  "csisolatinarabic"=>"iso-8859-6",
  "ecma-114"=>"iso-8859-6",
  "iso-8859-6"=>"iso-8859-6",
  "iso-8859-6-e"=>"iso-8859-6",
  "iso-8859-6-i"=>"iso-8859-6",
  "iso-ir-127"=>"iso-8859-6",
  "iso8859-6"=>"iso-8859-6",
  "iso88596"=>"iso-8859-6",
  "iso_8859-6"=>"iso-8859-6",
  "iso_8859-6:1987"=>"iso-8859-6",
  "csisolatingreek"=>"iso-8859-7",
  "ecma-118"=>"iso-8859-7",
  "elot_928"=>"iso-8859-7",
  "greek"=>"iso-8859-7",
  "greek8"=>"iso-8859-7",
  "iso-8859-7"=>"iso-8859-7",
  "iso-ir-126"=>"iso-8859-7",
  "iso8859-7"=>"iso-8859-7",
  "iso88597"=>"iso-8859-7",
  "iso_8859-7"=>"iso-8859-7",
  "iso_8859-7:1987"=>"iso-8859-7",
  "sun_eu_greek"=>"iso-8859-7",
  "csiso88598e"=>"iso-8859-8",
  "csisolatinhebrew"=>"iso-8859-8",
  "hebrew"=>"iso-8859-8",
  "iso-8859-8"=>"iso-8859-8",
  "iso-8859-8-e"=>"iso-8859-8",
  "iso-ir-138"=>"iso-8859-8",
  "iso8859-8"=>"iso-8859-8",
  "iso88598"=>"iso-8859-8",
  "iso_8859-8"=>"iso-8859-8",
  "iso_8859-8:1988"=>"iso-8859-8",
  "visual"=>"iso-8859-8",
  "csisolatin6"=>"iso-8859-10",
  "iso-8859-10"=>"iso-8859-10",
  "iso-ir-157"=>"iso-8859-10",
  "iso8859-10"=>"iso-8859-10",
  "iso885910"=>"iso-8859-10",
  "l6"=>"iso-8859-10",
  "latin6"=>"iso-8859-10",
  "iso-8859-13"=>"iso-8859-13",
  "iso8859-13"=>"iso-8859-13",
  "iso885913"=>"iso-8859-13",
  "iso-8859-14"=>"iso-8859-14",
  "iso8859-14"=>"iso-8859-14",
  "iso885914"=>"iso-8859-14",
  "csisolatin9"=>"iso-8859-15",
  "iso-8859-15"=>"iso-8859-15",
  "iso8859-15"=>"iso-8859-15",
  "iso885915"=>"iso-8859-15",
  "iso_8859-15"=>"iso-8859-15",
  "l9"=>"iso-8859-15",
  "iso-8859-16"=>"iso-8859-16",
  "cskoi8r"=>"koi8-r",
  "koi"=>"koi8-r",
  "koi8"=>"koi8-r",
  "koi8-r"=>"koi8-r",
  "koi8_r"=>"koi8-r",
  "koi8-ru"=>"koi8-u",
  "koi8-u"=>"koi8-u",
  "dos-874"=>"windows-874",
  "iso-8859-11"=>"windows-874",
  "iso8859-11"=>"windows-874",
  "iso885911"=>"windows-874",
  "tis-620"=>"windows-874",
  "windows-874"=>"windows-874",
  "cp1250"=>"windows-1250",
  "windows-1250"=>"windows-1250",
  "x-cp1250"=>"windows-1250",
  "cp1251"=>"windows-1251",
  "windows-1251"=>"windows-1251",
  "x-cp1251"=>"windows-1251",
  "ansi_x3.4-1968"=>"windows-1252",
  "ascii"=>"windows-1252",
  "cp1252"=>"windows-1252",
  "cp819"=>"windows-1252",
  "csisolatin1"=>"windows-1252",
  "ibm819"=>"windows-1252",
  "iso-8859-1"=>"windows-1252",
  "iso-ir-100"=>"windows-1252",
  "iso8859-1"=>"windows-1252",
  "iso88591"=>"windows-1252",
  "iso_8859-1"=>"windows-1252",
  "iso_8859-1:1987"=>"windows-1252",
  "l1"=>"windows-1252",
  "latin1"=>"windows-1252",
  "us-ascii"=>"windows-1252",
  "windows-1252"=>"windows-1252",
  "x-cp1252"=>"windows-1252",
  "cp1253"=>"windows-1253",
  "windows-1253"=>"windows-1253",
  "x-cp1253"=>"windows-1253",
  "cp1254"=>"windows-1254",
  "csisolatin5"=>"windows-1254",
  "iso-8859-9"=>"windows-1254",
  "iso-ir-148"=>"windows-1254",
  "iso8859-9"=>"windows-1254",
  "iso88599"=>"windows-1254",
  "iso_8859-9"=>"windows-1254",
  "iso_8859-9:1989"=>"windows-1254",
  "l5"=>"windows-1254",
  "latin5"=>"windows-1254",
  "windows-1254"=>"windows-1254",
  "x-cp1254"=>"windows-1254",
  "cp1255"=>"windows-1255",
  "windows-1255"=>"windows-1255",
  "x-cp1255"=>"windows-1255",
  "cp1256"=>"windows-1256",
  "windows-1256"=>"windows-1256",
  "x-cp1256"=>"windows-1256",
  "cp1257"=>"windows-1257",
  "windows-1257"=>"windows-1257",
  "x-cp1257"=>"windows-1257",
  "cp1258"=>"windows-1258",
  "windows-1258"=>"windows-1258",
  "x-cp1258"=>"windows-1258",
  "x-mac-cyrillic"=>"macCyrillic",
  "x-mac-ukrainian"=>"macCyrillic",
  "chinese"=>"gbk",
  "csgb2312"=>"gbk",
  "csiso58gb231280"=>"gbk",
  "gb2312"=>"gbk",
  "gb_2312"=>"gbk",
  "gb_2312-80"=>"gbk",
  "gbk"=>"gbk",
  "iso-ir-58"=>"gbk",
  "x-gbk"=>"gbk",
  "gb18030"=>"gb18030",
  "big5"=>"big5",
  "big5-hkscs"=>"big5",
  "cn-big5"=>"big5",
  "csbig5"=>"big5",
  "x-x-big5"=>"big5",
  "cseucpkdfmtjapanese"=>"cp51932",
  "euc-jp"=>"cp51932",
  "x-euc-jp"=>"cp51932",
  "csiso2022jp"=>"cp50221",
  "iso-2022-jp"=>"cp50221",
  "csshiftjis"=>"Windows-31J",
  "ms932"=>"Windows-31J",
  "ms_kanji"=>"Windows-31J",
  "shift-jis"=>"Windows-31J",
  "shift_jis"=>"Windows-31J",
  "sjis"=>"Windows-31J",
  "windows-31j"=>"Windows-31J",
  "x-sjis"=>"Windows-31J",
  "cseuckr"=>"euc-kr",
  "csksc56011987"=>"euc-kr",
  "euc-kr"=>"euc-kr",
  "iso-ir-149"=>"euc-kr",
  "korean"=>"euc-kr",
  "ks_c_5601-1987"=>"euc-kr",
  "ks_c_5601-1989"=>"euc-kr",
  "ksc5601"=>"euc-kr",
  "ksc_5601"=>"euc-kr",
  "windows-949"=>"euc-kr",
  "utf-16be"=>"utf-16be",
  "utf-16"=>"utf-16le",
  "utf-16le"=>"utf-16le",
}

Class Method Summary

.decode_uri_component(str, enc = Encoding::UTF_8)

Decodes given str of URL-encoded data.
.decode_www_form(str, enc = Encoding::UTF_8, separator: '&', use__charset_: false, isindex: false)

Decodes URL-encoded form data from given str.
.decode_www_form_component(str, enc = Encoding::UTF_8)

Decodes given str of URL-encoded form data.
.encode_uri_component(str, enc = nil)

Encodes str using URL encoding.
.encode_www_form(enum, enc = nil)

Generates URL-encoded form data from given enum.
.encode_www_form_component(str, enc = nil)

Encodes given str to URL-encoded form data.
.extract(str, schemes = nil, &block)

Synopsis.
.for(scheme, *arguments, default: Generic)

Construct a URI instance, using the scheme to detect the appropriate class from .scheme_list.
.join(*str)

Synopsis.
.parse(uri)

Synopsis.
.regexp(schemes = nil)

Synopsis.
.register_scheme(scheme, klass)

Register the given klass to be instantiated when parsing URLs with the given scheme.
.scheme_list

Returns a Hash of the defined schemes.
.split(uri)

Synopsis.
._decode_uri_component(regexp, str, enc) private
._encode_uri_component(regexp, table, str, enc) private
.get_encoding(label) private Internal use only

return encoding or nil encoding.spec.whatwg.org/#concept-encoding-get.

Class Method Details

._decode_uri_component(regexp, str, enc) (private)

Raises:

(ArgumentError)

[ GitHub ]

# File 'lib/uri/common.rb', line 371


def self._decode_uri_component(regexp, str, enc)
  raise ArgumentError, "invalid %-encoding (#{str})" if /%(?!\h\h)/.match?(str)
  str.b.gsub(regexp, TBLDECWWWCOMP_).force_encoding(enc)
end

._encode_uri_component(regexp, table, str, enc) (private)

[ GitHub ]

# File 'lib/uri/common.rb', line 357


def self._encode_uri_component(regexp, table, str, enc)
  str = str.to_s.dup
  if str.encoding != Encoding::ASCII_8BIT
    if enc && enc != Encoding::ASCII_8BIT
      str.encode!(Encoding::UTF_8, invalid: :replace, undef: :replace)
      str.encode!(enc, fallback: ->(x){"&##{x.ord};"})
    end
    str.force_encoding(Encoding::ASCII_8BIT)
  end
  str.gsub!(regexp, table)
  str.force_encoding(Encoding::US_ASCII)
end

.decode_uri_component(str, enc = Encoding::UTF_8)

Decodes given str of URL-encoded data.

This does not decode + to SP.

[ GitHub ]

# File 'lib/uri/common.rb', line 353


def self.decode_uri_component(str, enc=Encoding::UTF_8)
  _decode_uri_component(/%\h\h/, str, enc)
end

.decode_www_form(str, enc = Encoding::UTF_8, separator: '&', use__charset_: false, isindex: false)

Decodes URL-encoded form data from given str.

This decodes application/x-www-form-urlencoded data and returns an array of key-value arrays.

This refers url.spec.whatwg.org/#concept-urlencoded-parser, so this supports only &-separator, and doesn’t support ;-separator.

ary = URI.decode_www_form("a=1&a=2&b=3")
ary                   #=> [['a', '1'], ['a', '2'], ['b', '3']]
ary.assoc('a').last   #=> '1'
ary.assoc('b').last   #=> '3'
ary.rassoc('a').last  #=> '2'
Hash[ary]             #=> {"a"=>"2", "b"=>"3"}

See .decode_www_form_component, .encode_www_form.

Raises:

(ArgumentError)

[ GitHub ]

# File 'lib/uri/common.rb', line 440


def self.decode_www_form(str, enc=Encoding::UTF_8, separator: '&', use__charset_: false, isindex: false)
  raise ArgumentError, "the input of #{self.name}.#{__method__} must be ASCII only string" unless str.ascii_only?
  ary = []
  return ary if str.empty?
  enc = Encoding.find(enc)
  str.b.each_line(separator) do |string|
    string.chomp!(separator)
    key, sep, val = string.partition('=')
    if isindex
      if sep.empty?
        val = key
        key = +''
      end
      isindex = false
    end

    if use__charset_ and key == '_charset_' and e = get_encoding(val)
      enc = e
      use__charset_ = false
    end

    key.gsub!(/\+|%\h\h/, TBLDECWWWCOMP_)
    if val
      val.gsub!(/\+|%\h\h/, TBLDECWWWCOMP_)
    else
      val = +''
    end

    ary << [key, val]
  end
  ary.each do |k, v|
    k.force_encoding(enc)
    k.scrub!
    v.force_encoding(enc)
    v.scrub!
  end
  ary
end

.decode_www_form_component(str, enc = Encoding::UTF_8)

Decodes given str of URL-encoded form data.

This decodes + to SP.

See .encode_www_form_component, .decode_www_form.

[ GitHub ]

# File 'lib/uri/common.rb', line 339


def self.decode_www_form_component(str, enc=Encoding::UTF_8)
  _decode_uri_component(/\+|%\h\h/, str, enc)
end

.encode_uri_component(str, enc = nil)

Encodes str using URL encoding

This encodes SP to %20 instead of +.

[ GitHub ]

# File 'lib/uri/common.rb', line 346


def self.encode_uri_component(str, enc=nil)
  _encode_uri_component(/[^*\-.0-9A-Z_a-z]/, TBLENCURICOMP_, str, enc)
end

.encode_www_form(enum, enc = nil)

Generates URL-encoded form data from given enum.

This generates application/x-www-form-urlencoded data defined in HTML5 from given an Enumerable object.

This internally uses .encode_www_form_component(str).

This method doesn’t convert the encoding of given items, so convert them before calling this method if you want to send data as other than original encoding or mixed encoding data. (Strings which are encoded in an HTML5 ASCII incompatible encoding are converted to UTF-8.)

This method doesn’t handle files. When you send a file, use multipart/form-data.

This refers url.spec.whatwg.org/#concept-urlencoded-serializer

URI.encode_www_form([["q", "ruby"], ["lang", "en"]])
#=> "q=ruby&lang=en"
URI.encode_www_form("q" => "ruby", "lang" => "en")
#=> "q=ruby&lang=en"
URI.encode_www_form("q" => ["ruby", "perl"], "lang" => "en")
#=> "q=ruby&q=perl&lang=en"
URI.encode_www_form([["q", "ruby"], ["q", "perl"], ["lang", "en"]])
#=> "q=ruby&q=perl&lang=en"

See .encode_www_form_component, .decode_www_form.

[ GitHub ]

# File 'lib/uri/common.rb', line 404


def self.encode_www_form(enum, enc=nil)
  enum.map do |k,v|
    if v.nil?
      encode_www_form_component(k, enc)
    elsif v.respond_to?(:to_ary)
      v.to_ary.map do |w|
        str = encode_www_form_component(k, enc)
        unless w.nil?
          str << '='
          str << encode_www_form_component(w, enc)
        end
      end.join('&')
    else
      str = encode_www_form_component(k, enc)
      str << '='
      str << encode_www_form_component(v, enc)
    end
  end.join('&')
end

.encode_www_form_component(str, enc = nil)

Encodes given str to URL-encoded form data.

This method doesn’t convert *, -, ., 0-9, A-Z, _, a-z, but does convert SP (ASCII space) to + and converts others to %XX.

If enc is given, convert str to the encoding before percent encoding.

This is an implementation of www.w3.org/TR/2013/CR-html5-20130806/forms.html#url-encoded-form-data.

See .decode_www_form_component, .encode_www_form.

[ GitHub ]

# File 'lib/uri/common.rb', line 330


def self.encode_www_form_component(str, enc=nil)
  _encode_uri_component(/[^*\-.0-9A-Z_a-z]/, TBLENCWWWCOMP_, str, enc)
end

.extract(str, schemes = nil, &block)

Synopsis

URI::extract(str[, schemes][,&blk])

Args

str: String to extract URIs from.
schemes: Limit URI matching to specific schemes.

Description

Extracts URIs from a string. If block given, iterates through all matched URIs. Returns nil if block given or array with matches.

Usage

require "uri"

URI.extract("text here http://foo.example.org/bla and here mailto:test@example.com and here also.")
# => ["http://foo.example.com/bla", "mailto:test@example.com"]

[ GitHub ]

# File 'lib/uri/common.rb', line 259


def self.extract(str, schemes = nil, &block)
  warn "URI.extract is obsolete", uplevel: 1 if $VERBOSE
  DEFAULT_PARSER.extract(str, schemes, &block)
end

.for(scheme, *arguments, default: Generic)

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

[ GitHub ]

# File 'lib/uri/common.rb', line 97


def self.for(scheme, *arguments, default: Generic)
  const_name = scheme.to_s.upcase

  uri_class = INITIAL_SCHEMES[const_name]
  uri_class ||= if /\A[A-Z]\w*\z/.match?(const_name) && Schemes.const_defined?(const_name, false)
    Schemes.const_get(const_name, false)
  end
  uri_class ||= default

  return uri_class.new(scheme, *arguments)
end

.get_encoding(label) (private)

This method is for internal use only.

return encoding or nil encoding.spec.whatwg.org/#concept-encoding-get

[ GitHub ]

# File 'lib/uri/common.rb', line 710


def self.get_encoding(label)
  Encoding.find(WEB_ENCODINGS_[label.to_str.strip.downcase]) rescue nil
end

.join(*str)

Synopsis

URI::join(str[, str, ...])

Args

str: String(s) to work with, will be converted to RFC3986 URIs before merging.

Description

Joins URIs.

Usage

require 'uri'

URI.join("http://example.com/","main.rbx")
# => #<URI::HTTP http://example.com/main.rbx>

URI.join('http://example.com', 'foo')
# => #<URI::HTTP http://example.com/foo>

URI.join('http://example.com', '/foo', '/bar')
# => #<URI::HTTP http://example.com/bar>

URI.join('http://example.com', '/foo', 'bar')
# => #<URI::HTTP http://example.com/bar>

URI.join('http://example.com', '/foo/', 'bar')
# => #<URI::HTTP http://example.com/foo/bar>

[ GitHub ]

# File 'lib/uri/common.rb', line 231


def self.join(*str)
  RFC3986_PARSER.join(*str)
end

.parse(uri)

Synopsis

URI::parse(uri_str)

Args

uri_str: String with URI.

Description

Creates one of the URI’s subclasses instance from the string.

Raises

URI::InvalidURIError: Raised if URI given is not a correct one.

Usage

require 'uri'

uri = URI.parse("http://www.ruby-lang.org/")
# => #<URI::HTTP http://www.ruby-lang.org/>
uri.scheme
# => "http"
uri.host
# => "www.ruby-lang.org"

It’s recommended to first .escape the provided uri_str if there are any invalid URI characters.

[ GitHub ]

# File 'lib/uri/common.rb', line 194


def self.parse(uri)
  RFC3986_PARSER.parse(uri)
end

.regexp(schemes = nil)

Synopsis

URI::regexp([match_schemes])

Args

match_schemes: Array of schemes. If given, resulting regexp matches to URIs whose scheme is one of the match_schemes.

Description

Returns a Regexp object which matches to URI-like strings. The Regexp object returned by this method includes arbitrary number of capture group (parentheses). Never rely on its number.

Usage

require 'uri'

# extract first URI from html_string
html_string.slice(URI.regexp)

# remove ftp URIs
html_string.sub(URI.regexp(['ftp']), '')

# You should not rely on the number of parentheses
html_string.scan(URI.regexp) do |*matches|
  p $&
end

[ GitHub ]

# File 'lib/uri/common.rb', line 296


def self.regexp(schemes = nil)
  warn "URI.regexp is obsolete", uplevel: 1 if $VERBOSE
  DEFAULT_PARSER.make_regexp(schemes)
end

.register_scheme(scheme, klass)

Register the given klass to be instantiated when parsing URLs with the given scheme. Note that currently only schemes which after .upcase are valid constant names can be registered (no -/+/. allowed).

[ GitHub ]

# File 'lib/uri/common.rb', line 78


def self.register_scheme(scheme, klass)
  Schemes.const_set(scheme.to_s.upcase, klass)
end

.scheme_list

Returns a Hash of the defined schemes.

[ GitHub ]

# File 'lib/uri/common.rb', line 83


def self.scheme_list
  Schemes.constants.map { |name|
    [name.to_s.upcase, Schemes.const_get(name)]
  }.to_h
end

.split(uri)

Synopsis

URI::split(uri)

Args

uri: String with URI.

Description

Splits the string on following parts and returns array with result:

Scheme
Userinfo
Host
Port
Registry
Path
Opaque
Query
Fragment

Usage

require 'uri'

URI.split("http://www.ruby-lang.org/")
# => ["http", nil, "www.ruby-lang.org", nil, nil, "/", nil, nil, nil]

[ GitHub ]

# File 'lib/uri/common.rb', line 157


def self.split(uri)
  RFC3986_PARSER.split(uri)
end