Initial commit

.gitignore

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+*.swp

README.rdoc

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+= Data URI
+
+== Introduction
+
+Data URIs allow resources to be embedding inside a URI. The URI::Data class
+provides support for parsing these URIs using the normal URI.parse method.
+
+== Usage
+
+ uri = URI.parse('data:image/gif;base64,...')
+ uri.content_type # 'image/gif
+ uri.data # Base64 decoded data
+
+== License:
+
+(The MIT License)
+
+Copyright (c) 2010
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Rakefile

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+desc "Build a gem file"
+task :build do
+  system "gem build data_uri.gemspec"
+end
+
+task :default => :test

data_uri.gemspec

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+Gem::Specification.new do |s|
+  s.name        = "data_uri"
+  s.version     = "0.0.1"
+  s.author      = "Donald Ball"
+  s.email       = "[email protected]"
+  s.homepage    = "http://github.com/dball/data_uri"
+  s.description = "URI class for parsing data URIs"
+  s.summary     = "A URI class for parsing data URIs as per RFC2397"
+
+  s.platform = Gem::Platform::RUBY
+  s.has_rdoc = true
+  s.extra_rdoc_files = ["README.rdoc"]
+
+  s.require_path = 'lib'
+  s.files = %w(README.rdoc Rakefile) + Dir.glob("lib/**/*")
+end

lib/data_uri.rb

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+require 'uri'
+require 'base64'
+
+module URI
+
+  class Data < Generic
+
+    COMPONENT = [:scheme, :opaque].freeze
+    OPAQUE_REGEXP = /^([^;]+);base64,(.+)$/.freeze
+
+    attr_reader :content_type, :data
+
+    def initialize(*args)
+      super(*args)
+      if OPAQUE_REGEXP.match(@opaque)
+        @content_type = $1
+        @data = Base64.decode64($2)
+      end
+    end
+  end
+
+  @@schemes['DATA'] = Data
+
+end

test/data_uri_test.rb

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+require 'data_uri'
+require 'minitest/autorun'
+
+describe URI::Data do
+
+  describe "a valid data URI" do
+
+    before do
+      @base64 = "R0lGODlhEAAOALMAAOazToeHh0tLS/7LZv/0jvb29t/f3//Ub//ge8WSLf/rhf/3kdbW1mxsbP//mf///yH5BAAAAAAALAAAAAAQAA4AAARe8L1Ekyky67QZ1hLnjM5UUde0ECwLJoExKcppV0aCcGCmTIHEIUEqjgaORCMxIC6e0CcguWw6aFjsVMkkIr7g77ZKPJjPZqIyd7sJAgVGoEGv2xsBxqNgYPj/gAwXEQA7"
+      @uri = URI.parse("data:image/gif;base64,#{@base64}")
+    end
+
+    it "should parse as a URI::Data object" do
+      @uri.class.must_equal URI::Data
+    end
+
+    it "should have a content_type of image/gif" do
+      @uri.content_type.must_equal 'image/gif'
+    end
+
+    it "should have decoded data" do
+      require 'base64'
+      @uri.data.must_equal Base64.decode64(@base64)
+    end
+
+  end
+
+end