Add secure sockets to dart:io

tests/standalone/io/tls_socket_test.dart

+// 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

[Søren Gjesse, 2012/11/12 12:04:57]

How about --short_socket_write and both --short_socket_read and
--short_socket_write.

[Bill Hesse, 2012/11/13 20:11:08]

Comment added - TODO below explains why these don't work yet.
On 2012/11/12 12:04:57, Søren Gjesse wrote:

+
+#import("dart:isolate");
+#import("dart:io");
+
+void main() {
+  var testPkcertDatabase =
+      new Path.fromNative(new Options().script).directoryPath.append('pkcert/');

[Mads Ager (google), 2012/11/12 11:39:08]

I still don't see a pkcert directory in this changelist.

[Bill Hesse, 2012/11/13 20:11:08]

Added.
On 2012/11/12 11:39:08, Mads Ager wrote:

+  TlsSocket.setCertificateDatabase(testPkcertDatabase.toNativePath());
+  // TODO(3593): Use a Dart HTTPS server for this test using TLS server sockets.
+  // When we use a Dart HTTPS server, allow --short_socket_write. The flag
+  // causes fragmentation of the client hello message, which doesn't seem to
+  // work with www.google.dk.
+  var tls = new TlsSocket("www.google.dk", 443);
+  List<String> chunks = <String>[];
+  tls.onConnect = () {
+    var request_bytes =
+      "GET / HTTP/1.0\r\nHost: www.google.dk\r\n\r\n".charCodes;
+    tls.writeList(request_bytes, 0, 20);
+    tls.writeList(request_bytes, 20, request_bytes.length - 20);
+  };
+  tls.onData = () {
+    var buffer = new List(2000);
+    int len = tls.readList(buffer, 0, 2000);
+    var received = new String.fromCharCodes(buffer.getRange(0, len));
+    chunks.add(received);
+  };
+  tls.onClosed = () {
+    String fullPage = Strings.concatAll(chunks);
+    print(fullPage);

[Mads Ager (google), 2012/11/12 11:39:08]

Remove the print. Not sure it is usefully to get google.dk html printed when you
run the test.

[Bill Hesse, 2012/11/13 20:11:08]

Done.

+    Expect.isTrue(fullPage.contains('</body></html>'));
+    tls.close();
+  };
+}