Class: URI::Data
- Inherits:
-
Generic
- Object
- Generic
- URI::Data
- Defined in:
- lib/data_uri/uri.rb,
lib/data_uri/open_uri.rb
Constant Summary collapse
- COMPONENT =
[:scheme, :opaque].freeze
- MIME_TYPE_RE =
%r{^([-\w.+]+/[-\w.+]*)}.freeze
- MIME_PARAM_RE =
/^;([-\w.+]+)=([^;,]+)/.freeze
Instance Attribute Summary collapse
-
#content_type ⇒ Object
readonly
Returns the value of attribute content_type.
-
#data ⇒ Object
readonly
Returns the value of attribute data.
Class Method Summary collapse
Instance Method Summary collapse
-
#initialize(*args) ⇒ Data
constructor
A new instance of Data.
- #open ⇒ Object
Constructor Details
#initialize(*args) ⇒ Data
Returns a new instance of Data.
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 |
# File 'lib/data_uri/uri.rb', line 11 def initialize(*args) if args.length == 1 uri = args.first.to_s unless uri.match(/^data:/) raise 'Invalid Data URI: ' + args.first.inspect end @scheme = 'data' @opaque = uri[5 .. -1] else super(*args) end @data = @opaque if md = MIME_TYPE_RE.match(@data) @content_type = md[1] @data = @data[@content_type.length .. -1] end @content_type ||= 'text/plain' @mime_params = {} while md = MIME_PARAM_RE.match(@data) @mime_params[md[1]] = md[2] @data = @data[md[0].length .. -1] end if base64 = /^;base64/.match(@data) @data = @data[7 .. -1] end unless /^,/.match(@data) raise 'Invalid data URI' end @data = @data[1 .. -1] @data = base64 ? Base64.decode64(@data) : URI.decode(@data) if @data.respond_to?(:force_encoding) && charset = @mime_params['charset'] @data.force_encoding(charset) end end |
Instance Attribute Details
#content_type ⇒ Object (readonly)
Returns the value of attribute content_type.
9 10 11 |
# File 'lib/data_uri/uri.rb', line 9 def content_type @content_type end |
#data ⇒ Object (readonly)
Returns the value of attribute data.
9 10 11 |
# File 'lib/data_uri/uri.rb', line 9 def data @data end |
Class Method Details
.build(arg) ⇒ Object
46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 |
# File 'lib/data_uri/uri.rb', line 46 def self.build(arg) data = nil content_type = nil case arg when IO data = arg when Hash data = arg[:data] content_type = arg[:content_type] end raise 'Invalid build argument: ' + arg.inspect unless data if !content_type && data.respond_to?(:content_type) content_type = data.content_type end new('data', nil, nil, nil, nil, nil, "#{content_type};base64,#{Base64.encode64(data.read).chop}", nil, nil) end |
Instance Method Details
#open ⇒ Object
5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
# File 'lib/data_uri/open_uri.rb', line 5 def open io = StringIO.new(data) OpenURI::Meta.init(io) io.('content-type', content_type) if block_given? begin yield io ensure io.close end else io end end |