Private API for extensions like ssh-client that need access to TCP.

chrome/browser/extensions/extension_web_socket_proxy_private_api.cc

+// 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.
+
+#include "chrome/browser/extensions/extension_web_socket_proxy_private_api.h"
+
+#include "base/logging.h"
+#include "base/values.h"
+#include "base/string_number_conversions.h"
+#include "chrome/browser/internal_auth.h"
+#include "chrome/common/extensions/extension.h"
+#include "content/common/notification_service.h"
+
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/chromeos/web_socket_proxy_controller.h"
+#endif
+
+bool WebSocketProxyPrivateGetPassportForTCPFunction::RunImpl() {
+  bool delay_response = false;
+  result_.reset(Value::CreateStringValue(""));
+
+#if defined(OS_CHROMEOS)

[Dmitry Polukhin, 2011/05/18 06:50:47]

Perhaps later we will have to move proxy in about:flags to be configurable on
other platforms as well to be able to test user code not only on Chrome OS.

+  std::string hostname;
+  EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &hostname));
+  int port = -1;
+  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(1, &port));
+
+  if (chromeos::WebSocketProxyController::CheckCredentials(
+          extension_id(), hostname, port,
+          chromeos::WebSocketProxyController::PLAIN_TCP)) {
+    if (!chromeos::WebSocketProxyController::IsInitiated()) {
+      delay_response = true;
+      registrar_.Add(
+          this, NotificationType::WEB_SOCKET_PROXY_STARTED,
+          NotificationService::AllSources());
+      chromeos::WebSocketProxyController::Initiate();
+    }
+
+    std::map<std::string, std::string> map;
+    map["hostname"] = hostname;
+    map["port"] = base::IntToString(port);
+    map["extension_id"] = extension_id();
+    StringValue* passport = Value::CreateStringValue(
+        browser::InternalAuthGeneration::GeneratePassport(
+            "web_socket_proxy", map));
+    result_.reset(passport);
+  }
+#endif  // defined(OS_CHROMEOS)
+
+  // TODO(dilmah): get idea why notification is not observed and timer callback
+  // is not called and remove this line.
+  delay_response = false;

[Dmitry Polukhin, 2011/05/18 06:50:47]

Please file P1 R13 issue about it. It needs to be fixed because there is race
condition here. So client code will be flaky (perhaps test also will be flaky).

[Denis Lagno, 2011/05/18 11:53:32]

ok

+
+  if (delay_response) {
+    timer_.Start(base::TimeDelta::FromSeconds(3),
+        this, &WebSocketProxyPrivateGetPassportForTCPFunction::Finalize);
+  } else {
+    Finalize();
+  }
+  return true;
+}
+
+void WebSocketProxyPrivateGetPassportForTCPFunction::Observe(
+    NotificationType type, const NotificationSource& source,
+    const NotificationDetails& details) {
+#if defined(OS_CHROMEOS)
+  DCHECK(type.value == NotificationType::WEB_SOCKET_PROXY_STARTED);
+#else
+  NOTREACHED();
+#endif
+  timer_.Stop();  // Cancel timeout timer.
+  Finalize();
+}
+
+void WebSocketProxyPrivateGetPassportForTCPFunction::Finalize() {
+  SendResponse(true);
+}
+