dart:io | Add badCertificateCallback to HttpClient.

tests/standalone/io/https_bad_certificate_client.dart

+// Copyright (c) 2013, 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.
+
+// Client for https_bad_certificate_test, that runs in a subprocess.
+// It verifies that the client bad certificate callback works in HttpClient.
+
+import "dart:async";
+import "dart:io";
+
+class ExpectException implements Exception {
+  ExpectException(this.message);
+  String toString() => "ExpectException: $message";
+  String message;
+}
+
+void expect(condition) {
+  if (!condition) {
+    throw new ExpectException('');
+  }
+}
+
+const HOST_NAME = "localhost";
+
+Future runHttpClient(int port, result) {
+  bool badCertificateCallback(X509Certificate certificate,
+                              String host,
+                              int callbackPort) {
+    expect(HOST_NAME == host);
+    expect(callbackPort == port);
+    expect('CN=localhost' == certificate.subject);
+    expect('CN=myauthority' == certificate.issuer);
+    expect(result != 'exception');  // Throw exception if one is requested.
+    if (result == 'true') return true;
+    if (result == 'false') return false;
+    return result;
+  }
+
+  HttpClient client = new HttpClient();
+
+  var testFutures = [];
+  testFutures.add(client.getUrl(Uri.parse('https://$HOST_NAME:$port/$result'))
+    .then((HttpClientRequest request) { expect(false); },
+        onError: (e) { expect(e is HandshakeException); }));
+
+  client.badCertificateCallback = badCertificateCallback;
+  testFutures.add( client.getUrl(Uri.parse('https://$HOST_NAME:$port/$result'))
+    .then((HttpClientRequest request) {
+      expect(result == 'true');
+      request.close().then((result) { });
+    }, onError: (e) {
+      if (result == 'false') expect (e is HandshakeException);
+      else if (result == 'exception') expect (e is ExpectException);
+      else expect (e is ArgumentError);
+    }));
+
+  client.badCertificateCallback = null;
+  testFutures.add(client.getUrl(Uri.parse('https://$HOST_NAME:$port/$result'))
+    .then((HttpClientRequest request) {
+      expect(false);
+    }, onError: (e) {
+      expect(e is HandshakeException);
+    }));
+
+  return Future.wait(testFutures);
+}
+
+void main() {
+  final args = new Options().arguments;
+  SecureSocket.initialize();
+  int port = int.parse(args[0]);
+  runHttpClient(port, args[1])
+    .then((_) => print('SUCCESS'));
+}