Decode URL-encoded form data from given str.

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

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

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

See ::decode_www_form_component, ::encode_www_form

 
               # File uri/common.rb, line 450
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 given str of URL-encoded form data.

This decodes + to SP.

See ::encode_www_form_component, ::decode_www_form

 
               # File uri/common.rb, line 382
def self.decode_www_form_component(str, enc=Encoding::UTF_8)
  raise ArgumentError, "invalid %-encoding (#{str})" if /%(?!\h\h)/ =~ str
  str.b.gsub(/\+|%\h\h/, TBLDECWWWCOMP_).force_encoding(enc)
end
            

Generate 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.

This method doesn’t convert the encoding of given items, so convert them before call 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

 
               # File uri/common.rb, line 414
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 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

 
               # File uri/common.rb, line 364
def self.encode_www_form_component(str, enc=nil)
  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!(/[^*\-.0-9A-Z_a-z]/, TBLENCWWWCOMP_)
  str.force_encoding(Encoding::US_ASCII)
end
            

Synopsis¶ ↑

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

Args¶ ↑

str

String to extract URIs from.

schemes

Limit URI matching to a 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"]

 
               # File uri/common.rb, line 292
def self.extract(str, schemes = nil, &block)
  warn "#{caller(1)[0]}: warning: URI.extract is obsolete" if $VERBOSE
  DEFAULT_PARSER.extract(str, schemes, &block)
end
            

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'

p URI.join("http://example.com/","main.rbx")
# => #<URI::HTTP:0x2022ac02 URL:http://example.com/main.rbx>

p URI.join('http://example.com', 'foo')
# => #<URI::HTTP:0x01ab80a0 URL:http://example.com/foo>

p URI.join('http://example.com', '/foo', '/bar')
# => #<URI::HTTP:0x01aaf0b0 URL:http://example.com/bar>

p URI.join('http://example.com', '/foo', 'bar')
# => #<URI::HTTP:0x801a92af0 URL:http://example.com/bar>

p URI.join('http://example.com', '/foo/', 'bar')
# => #<URI::HTTP:0x80135a3a0 URL:http://example.com/foo/bar>

 
               # File uri/common.rb, line 264
def self.join(*str)
  RFC3986_PARSER.join(*str)
end
            

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/")
p uri
# => #<URI::HTTP:0x202281be URL:http://www.ruby-lang.org/>
p uri.scheme
# => "http"
p uri.host
# => "www.ruby-lang.org"

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

 
               # File uri/common.rb, line 226
def self.parse(uri)
  RFC3986_PARSER.parse(uri)
end
            

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 it’s 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

 
               # File uri/common.rb, line 328
def self.regexp(schemes = nil)
  warn "#{caller(1)[0]}: warning: URI.regexp is obsolete" if $VERBOSE
  DEFAULT_PARSER.make_regexp(schemes)
end
            

Returns a Hash of the defined schemes

 
               # File uri/common.rb, line 136
def self.scheme_list
  @@schemes
end
            

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'

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

 
               # File uri/common.rb, line 188
def self.split(uri)
  RFC3986_PARSER.split(uri)
end