Add new HttpMultipartFormData, used for parsing a MimeMultipart and extracting either text or binar…

tests/standalone/io/http_multipart_test.dart

Index: tests/standalone/io/http_multipart_test.dart
diff --git a/tests/standalone/io/http_multipart_test.dart b/tests/standalone/io/http_multipart_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..d564fc9b814ac98d03044cc072187135aef0f273
--- /dev/null
+++ b/tests/standalone/io/http_multipart_test.dart
@@ -0,0 +1,201 @@
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// 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.
+//
+// VMOptions=
+// VMOptions=--short_socket_read
+// VMOptions=--short_socket_write
+// VMOptions=--short_socket_read --short_socket_write
+
+import "package:expect/expect.dart";
+import 'dart:async';
+import 'dart:io';
+
+class FormField {
+  final String name;
+  final value;
+  final String contentType;
+  final String filename;
+
+  FormField(String this.name,
+            this.value,
+            {String this.contentType,
+             String this.filename});
+
+  bool operator==(other) {
+    if (value.length != other.value.length) return false;
+    for (int i = 0; i < value.length; i++) {
+      if (value[i] != other.value[i]) {
+        return false;
+      }
+    }
+    return name == other.name &&
+           contentType == other.contentType &&
+           filename == other.filename;
+  }
+
+  String toString() {
+    return "FormField('$name', '$value', '$contentType', '$filename')";
+  }
+}
+
+void postDataTest(List<int> message,
+                  String contentType,
+                  String boundary,
+                  List<FormField> expectedFields) {
+  HttpServer.bind("127.0.0.1", 0).then((server) {
+    server.listen((request) {
+      String boundary = request.headers.contentType.parameters['boundary'];
+      request
+          .transform(new MimeMultipartTransformer(boundary))
+          .map(HttpMultipartFormData.parse)
+          .map((multipart) {
+            var future;
+            if (multipart.isText) {
+              future = multipart
+                  .fold(new StringBuffer(), (b, s) => b..write(s))
+                  .then((b) => b.toString());
+            } else {
+              future = multipart
+                  .fold([], (b, s) => b..addAll(s));
+            }
+            return future
+                .then((data) {
+                  String contentType;
+                  if (multipart.contentType != null) {
+                    contentType = multipart.contentType.mimeType;
+                  }
+                  return new FormField(
+                      multipart.contentDisposition.parameters['name'],
+                      data,
+                      contentType: contentType,
+                      filename:
+                          multipart.contentDisposition.parameters['filename']);
+                });
+          })
+          .fold([], (l, f) => l..add(f))
+          .then(Future.wait)
+          .then((fields) {
+            Expect.listEquals(expectedFields, fields);
+            request.response.close().then((_) => server.close());
+          });
+    });
+    var client = new HttpClient();
+    client.post('127.0.0.1', server.port, '/')
+        .then((request) {
+          request.headers.set('content-type',
+                              'multipart/form-data; boundary=$boundary');
+          request.add(message);
+          return request.close();
+        })
+        .then((response) {
+          client.close();
+        });
+  });
+}
+
+void testPostData() {
+  var message = '''
+\r\n--AaB03x\r
+Content-Disposition: form-data; name="submit-name"\r
+\r
+Larry\r
+--AaB03x\r
+Content-Disposition: form-data; name="files"; filename="file1.txt"\r
+Content-Type: text/plain\r
+\r
+Content of file\r
+--AaB03x--\r\n''';
+
+
+  postDataTest(message.codeUnits,
+               'multipart/form-data',
+               'AaB03x',
+               [new FormField('submit-name', 'Larry'),
+                new FormField('files',
+                              'Content of file',
+                              contentType: 'text/plain',
+                              filename: 'file1.txt')]);
+
+  // Similar test using Chrome posting.
+  message = [
+      45, 45, 45, 45, 45, 45, 87, 101, 98, 75, 105, 116, 70, 111, 114, 109, 66,
+      111, 117, 110, 100, 97, 114, 121, 81, 83, 113, 108, 56, 107, 68, 65, 76,
+      77, 55, 116, 65, 107, 67, 49, 13, 10, 67, 111, 110, 116, 101, 110, 116,
+      45, 68, 105, 115, 112, 111, 115, 105, 116, 105, 111, 110, 58, 32, 102,
+      111, 114, 109, 45, 100, 97, 116, 97, 59, 32, 110, 97, 109, 101, 61, 34,
+      115, 117, 98, 109, 105, 116, 45, 110, 97, 109, 101, 34, 13, 10, 13, 10,
+      84, 101, 115, 116, 13, 10, 45, 45, 45, 45, 45, 45, 87, 101, 98, 75, 105,
+      116, 70, 111, 114, 109, 66, 111, 117, 110, 100, 97, 114, 121, 81, 83, 113,
+      108, 56, 107, 68, 65, 76, 77, 55, 116, 65, 107, 67, 49, 13, 10, 67, 111,
+      110, 116, 101, 110, 116, 45, 68, 105, 115, 112, 111, 115, 105, 116, 105,
+      111, 110, 58, 32, 102, 111, 114, 109, 45, 100, 97, 116, 97, 59, 32, 110,
+      97, 109, 101, 61, 34, 102, 105, 108, 101, 115, 34, 59, 32, 102, 105, 108,
+      101, 110, 97, 109, 101, 61, 34, 86, 69, 82, 83, 73, 79, 78, 34, 13, 10,
+      67, 111, 110, 116, 101, 110, 116, 45, 84, 121, 112, 101, 58, 32, 97, 112,
+      112, 108, 105, 99, 97, 116, 105, 111, 110, 47, 111, 99, 116, 101, 116, 45,
+      115, 116, 114, 101, 97, 109, 13, 10, 13, 10, 123, 32, 10, 32, 32, 34, 114,
+      101, 118, 105, 115, 105, 111, 110, 34, 58, 32, 34, 50, 49, 56, 54, 48, 34,
+      44, 10, 32, 32, 34, 118, 101, 114, 115, 105, 111, 110, 34, 32, 58, 32, 34,
+      48, 46, 49, 46, 50, 46, 48, 95, 114, 50, 49, 56, 54, 48, 34, 44, 10, 32,
+      32, 34, 100, 97, 116, 101, 34, 32, 32, 32, 32, 58, 32, 34, 50, 48, 49, 51,
+      48, 52, 50, 51, 48, 48, 48, 52, 34, 10, 125, 13, 10, 45, 45, 45, 45, 45,
+      45, 87, 101, 98, 75, 105, 116, 70, 111, 114, 109, 66, 111, 117, 110, 100,
+      97, 114, 121, 81, 83, 113, 108, 56, 107, 68, 65, 76, 77, 55, 116, 65, 107,
+      67, 49, 45, 45, 13, 10];
+
+  var data = [
+      123, 32, 10, 32, 32, 34, 114, 101, 118, 105, 115, 105, 111, 110, 34, 58,
+      32, 34, 50, 49, 56, 54, 48, 34, 44, 10, 32, 32, 34, 118, 101, 114, 115,
+      105, 111, 110, 34, 32, 58, 32, 34, 48, 46, 49, 46, 50, 46, 48, 95, 114,
+      50, 49, 56, 54, 48, 34, 44, 10, 32, 32, 34, 100, 97, 116, 101, 34, 32, 32,
+      32, 32, 58, 32, 34, 50, 48, 49, 51, 48, 52, 50, 51, 48, 48, 48, 52, 34,
+      10, 125];
+
+  postDataTest(message,
+               'multipart/form-data',
+               '----WebKitFormBoundaryQSql8kDALM7tAkC1',
+               [new FormField('submit-name', 'Test'),
+                new FormField('files',
+                              data,
+                              contentType: 'application/octet-stream',
+                              filename: 'VERSION')]);
+
+  message = [
+      45, 45, 45, 45, 45, 45, 87, 101, 98, 75, 105, 116, 70, 111, 114, 109, 66,
+      111, 117, 110, 100, 97, 114, 121, 118, 65, 86, 122, 117, 103, 75, 77, 116,
+      90, 98, 121, 87, 111, 66, 71, 13, 10, 67, 111, 110, 116, 101, 110, 116,
+      45, 68, 105, 115, 112, 111, 115, 105, 116, 105, 111, 110, 58, 32, 102,
+      111, 114, 109, 45, 100, 97, 116, 97, 59, 32, 110, 97, 109, 101, 61, 34,
+      110, 97, 109, 101, 34, 13, 10, 13, 10, 38, 35, 49, 50, 52, 48, 50, 59, 38,
+      35, 49, 50, 52, 50, 53, 59, 38, 35, 49, 50, 51, 54, 52, 59, 38, 35, 49,
+      50, 51, 57, 52, 59, 13, 10, 45, 45, 45, 45, 45, 45, 87, 101, 98, 75, 105,
+      116, 70, 111, 114, 109, 66, 111, 117, 110, 100, 97, 114, 121, 118, 65, 86,
+      122, 117, 103, 75, 77, 116, 90, 98, 121, 87, 111, 66, 71, 45, 45, 13, 10];
+
+  postDataTest(message,
+               'multipart/form-data',
+               '----WebKitFormBoundaryvAVzugKMtZbyWoBG',
+               [new FormField('name', 'ひらがな')]);
+
+  message = [
+      45, 45, 45, 45, 45, 45, 87, 101, 98, 75, 105, 116, 70, 111, 114, 109, 66,
+      111, 117, 110, 100, 97, 114, 121, 102, 101, 48, 69, 122, 86, 49, 97, 78,
+      121, 115, 68, 49, 98, 80, 104, 13, 10, 67, 111, 110, 116, 101, 110, 116,
+      45, 68, 105, 115, 112, 111, 115, 105, 116, 105, 111, 110, 58, 32, 102,
+      111, 114, 109, 45, 100, 97, 116, 97, 59, 32, 110, 97, 109, 101, 61, 34,
+      110, 97, 109, 101, 34, 13, 10, 13, 10, 248, 118, 13, 10, 45, 45, 45, 45,
+      45, 45, 87, 101, 98, 75, 105, 116, 70, 111, 114, 109, 66, 111, 117, 110,
+      100, 97, 114, 121, 102, 101, 48, 69, 122, 86, 49, 97, 78, 121, 115, 68,
+      49, 98, 80, 104, 45, 45, 13, 10];
+
+  postDataTest(message,
+               'multipart/form-data',
+               '----WebKitFormBoundaryfe0EzV1aNysD1bPh',
+               [new FormField('name', 'øv')]);
+}
+
+
+void main() {
+  testPostData();
+}