Move MimeMultipartTransformer and HttpBodyHandler to mime and http_server packages.

pkg/http_server/lib/src/http_multipart_form_data_impl.dart

Index: pkg/http_server/lib/src/http_multipart_form_data_impl.dart
diff --git a/sdk/lib/io/http_multipart_form_data_impl.dart b/pkg/http_server/lib/src/http_multipart_form_data_impl.dart
similarity index 73%
rename from sdk/lib/io/http_multipart_form_data_impl.dart
rename to pkg/http_server/lib/src/http_multipart_form_data_impl.dart
index b2279541cc428a274aae780bac501a5354967c1a..cc8d154a7c14b45ec0e976b020f8b28f43f1cd85 100644
--- a/sdk/lib/io/http_multipart_form_data_impl.dart
+++ b/pkg/http_server/lib/src/http_multipart_form_data_impl.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of dart.io;
+part of http_server;
 
 
 class _HttpMultipartFormData extends Stream implements HttpMultipartFormData {
@@ -41,7 +41,7 @@ class _HttpMultipartFormData extends Stream implements HttpMultipartFormData {
           .transform(new StringDecoder(encoding))
           .expand((data) {
             buffer.write(data);
-            var out = _HttpUtils.decodeHttpEntityString(buffer.toString());
+            var out = _decodeHttpEntityString(buffer.toString());
             if (out != null) {
               buffer = new StringBuffer();
               return [out];
@@ -100,3 +100,41 @@ class _HttpMultipartFormData extends Stream implements HttpMultipartFormData {
   }
 }
 
+
+// Decode a string with HTTP entities. Returns null if the string ends in the
+// middle of a http entity.
+// TODO(ajohnsen): Provide in dart:io?
+String _decodeHttpEntityString(String input) {
+  int amp = input.lastIndexOf('&');
+  if (amp < 0) return input;
+  int end = input.lastIndexOf(';');

[Bill Hesse, 2013/07/03 11:30:27]

or indexOf(';', amp)

[Anders Johnsen, 2013/07/12 10:45:57]

This is gone.

+  if (end < amp) return null;
+
+  var buffer = new StringBuffer();
+  int offset = 0;
+
+  parse(amp, end) {
+    switch (input[amp + 1]) {
+      case '#':
+        if (input[amp + 2] == 'x') {
+          buffer.writeCharCode(
+              int.parse(input.substring(amp + 3, end), radix: 16));
+        } else {
+          buffer.writeCharCode(int.parse(input.substring(amp + 2, end)));
+        }
+        break;
+
+      default:
+        throw new HttpException('Unhandled HTTP entity token');
+    }
+  }
+
+  while ((amp = input.indexOf('&', offset)) >= 0) {
+    buffer.write(input.substring(offset, amp));
+    int end = input.indexOf(';', amp);
+    parse(amp, end);
+    offset = end + 1;
+  }
+  buffer.write(input.substring(offset));
+  return buffer.toString();
+}