Websocket to TCP proxy running in a separate thread (only on ChromeOS).

With this webproxy: authorized extensions can connect to ws://127.0.0.1:10101/tcpproxy,
pass authorization_token:hostname:port: in first frame,
then webproxy establishes TCP connection to hostname:port and forwards any subsequent
communication.
Subsequent communication between extension and webproxy is base64-encoded.

TODO(dilmah): remove this temporary solution, get rid of separate thread and listening socket,
instead provide the same functionality via hooks into websocket layer.

BUG=chromium-os:9667
TEST=Manual

Review URL: http://codereview.chromium.org/6801008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@84795 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 46 insertions, 0 deletions

diff --git a/chrome/browser/chromeos/web_socket_proxy.h b/chrome/browser/chromeos/web_socket_proxy.h
new file mode 100644
index 0000000..9f15cbc
--- /dev/null
+++ b/chrome/browser/chromeos/web_socket_proxy.h
@@ -0,0 +1,46 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_CHROMEOS_WEB_SOCKET_PROXY_H_
+#define CHROME_BROWSER_CHROMEOS_WEB_SOCKET_PROXY_H_
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+
+struct sockaddr;
+
+namespace chromeos {
+
+class WebSocketProxy {
+ public:
+  static const size_t kReadBufferLimit = 6 * 1024 * 1024;
+
+  // Limits incoming websocket headers in initial stage of connection.
+  static const size_t kHeaderLimit = 32 * 1024;
+
+  // Limits number of simultaneously open connections.
+  static const size_t kConnPoolLimit = 1000;
+
+  WebSocketProxy(
+      const std::vector<std::string>& allowed_origins,
+      struct sockaddr* addr, int addr_len);
+  ~WebSocketProxy();
+
+  // Do not call it twice.
+  void Run();
+
+  // Terminates running server (should be called on a different thread).
+  void Shutdown();
+
+ private:
+  void* impl_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebSocketProxy);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_WEB_SOCKET_PROXY_H_