URIs work like real files.

git-svn-id: https://svn.thoughtbot.com/plugins/paperclip/trunk@209 7bbfaf0e-4d1d-0410-9690-a8bb5f8ef2aa

init.rb

+require 'open-uri'
 require File.join(File.dirname(__FILE__), "lib", "paperclip")
 ActiveRecord::Base.extend( Thoughtbot::Paperclip::ClassMethods )
 File.send :include, Thoughtbot::Paperclip::Upfile
+URI.send :include, Thoughtbot::Paperclip::Upfile
\ No newline at end of file

lib/paperclip.rb

@@ -173,7 +173,6 @@ module Thoughtbot #:nodoc:
           whine_about_columns_for attachments[attr]
 
           define_method "#{attr}=" do |uploaded_file|
-            uploaded_file = fetch_uri(uploaded_file) if uploaded_file.is_a? URI
             return send("destroy_#{attr}") if uploaded_file.nil?
             return unless is_a_file? uploaded_file
             
@@ -417,31 +416,8 @@ module Thoughtbot #:nodoc:
         end
       end
       
-      def fetch_uri uri
-        # I hate the fact that URI and open-uri can't handle file:// urls.
-        if uri.scheme == 'file'
-          path = url.gsub(%r{^file://}, '/')
-          image_data = open(path)
-        else
-          require 'open-uri'
-          image_data = open(uri.to_s)
-        end
-
-        image = StringIO.new(image_data.read)
-        image_data.close
-
-        image.instance_eval { class << self; attr_accessor :content_type, :original_filename; end }
-        image.content_type = image_data.content_type
-        image.original_filename = File.basename(uri.path)
-
-        image
-      rescue Exception => e
-        self.errors.add_to_base("Could not save #{uri.to_s}: #{e}")
-        nil
-      end
-      
       def is_a_file? data
-        [:size, :content_type, :original_filename, :read].map do |meth|
+        [:content_type, :original_filename, :read].map do |meth|
           data.respond_to? meth
         end.all?
       end
@@ -461,7 +437,7 @@ module Thoughtbot #:nodoc:
     module Upfile
       # Infer the MIME-type of the file from the extension.
       def content_type
-        type = self.path.match(/\.(\w+)$/)[1]
+        type = self.path.match(/\.(\w+)$/)[1] || "data"
         case type
         when "jpg", "png", "gif" then "image/#{type}"
         when "txt", "csv", "xml", "html", "htm" then "text/#{type}"

test/paperclip_images_test.rb

@@ -92,16 +92,31 @@ class PaperclipImagesTest < Test::Unit::TestCase
   end
   
   def test_should_save_image_from_uri
-    uri = URI.parse("http://thoughtbot.com/assets/11/thoughtbot.jpg")
+    require 'webrick'
+    server = WEBrick::HTTPServer.new(:Port         => 40404,
+                                     :DocumentRoot => File.dirname(__FILE__),
+                                     :AccessLog    => [],
+                                     :Logger       => WEBrick::Log.new(nil, WEBrick::Log::WARN))
+    Thread.new do
+      server.start
+    end
+    while server.status != :Running
+      sleep 0.1
+      print "!"; $stdout.flush
+    end
+    
+    uri = URI.parse("http://127.0.0.1:40404/fixtures/test_image.jpg")
     @foo.image = uri
     @foo.save
     @foo.image_valid?
     assert File.exists?( @foo.image_file_name(:original) ), @foo.image_file_name(:original)
     assert File.exists?( @foo.image_file_name(:medium) ), @foo.image_file_name(:medium)
     assert File.exists?( @foo.image_file_name(:thumb) ), @foo.image_file_name(:thumb)
-    out = `identify '#{@foo.image_file_name(:original)}'`; assert out.match("350x100"); assert $?.exitstatus == 0
-    out = `identify '#{@foo.image_file_name(:medium)}'`;   assert out.match("300x86");  assert $?.exitstatus == 0
-    out = `identify '#{@foo.image_file_name(:thumb)}'`;    assert out.match("100x29");  assert $?.exitstatus == 0
+    out = `identify '#{@foo.image_file_name(:original)}'`; assert_match "405x375", out; assert $?.exitstatus == 0
+    out = `identify '#{@foo.image_file_name(:medium)}'`;   assert_match "300x278", out;  assert $?.exitstatus == 0
+    out = `identify '#{@foo.image_file_name(:thumb)}'`;    assert_match "100x93", out;  assert $?.exitstatus == 0
+  ensure
+    server.stop if server
   end
 
   def test_should_put_errors_on_object_if_convert_does_not_exist