Implement Networking Private API VerifyAndEncryptCredentials method

chrome/browser/extensions/api/networking_private/wifi_passphrase_getter.h

+// Copyright 2014 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_EXTENSIONS_API_NETWORKING_PRIVATE_WIFI_PASSPHRASE_GETTER_H_
+#define CHROME_BROWSER_EXTENSIONS_API_NETWORKING_PRIVATE_WIFI_PASSPHRASE_GETTER_H_
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/utility_process_host_client.h"
+
+namespace extensions {
+
+// WiFiPassphraseGetter gets plain-text WiFi passphrase from the system
+// (requires UAC privilege elevation) and encrypts it with public key.
+class WiFiPassphraseGetter : public content::UtilityProcessHostClient {
+ public:
+  typedef base::Callback<void(const std::string& passphrase,
+                              const std::string& error)> PassphraseCallback;
+
+  WiFiPassphraseGetter(const PassphraseCallback& callback,
+                       int32 callback_id,
+                       const std::string& network_guid,
+                       const std::string& public_key);
+
+  void Start();
+
+ private:
+  friend class ProcessHostClient;
+
+  virtual ~WiFiPassphraseGetter();
+
+  // Starts the utility process that gets wifi passphrase from
+  void StartProcessOnIOThread(int32 callback_id,
+                              const std::string& network_guid,
+                              const std::string& public_key);
+
+  // UtilityProcessHostClient
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+  virtual void OnProcessCrashed(int exit_code) OVERRIDE;
+
+  // IPC message handlers.
+  void OnGotEncryptedWiFiPassphrase(int32 callback_id,
+                                    const std::string& passphrase,
+                                    const std::string& error);
+
+  void ReportEncryptedPassphraseOnUIThread(const std::string& passphrase,
+                                           const std::string& error);
+
+  // The callback.
+  PassphraseCallback callback_;
+
+  int32 callback_id_;
+  std::string network_guid_;
+  std::string public_key_;
+
+  DISALLOW_COPY_AND_ASSIGN(WiFiPassphraseGetter);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_NETWORKING_PRIVATE_WIFI_PASSPHRASE_GETTER_H_