Re-land the password store work from bug 8205, with changes that should fix b...

chrome/browser/password_manager/password_store_kwallet.h

+// Copyright (c) 2006-2009 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_PASSWORD_MANAGER_PASSWORD_STORE_KWALLET
+#define CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_STORE_KWALLET
+
+#include <dbus/dbus-glib.h>
+#include <glib.h>
+
+#include <string>
+#include <vector>
+
+#include "base/lock.h"
+#include "base/thread.h"
+#include "chrome/browser/password_manager/password_store.h"
+#include "webkit/glue/password_form.h"
+
+class Pickle;
+class Profile;
+class Task;
+
+class PasswordStoreKWallet : public PasswordStore {
+ public:
+  PasswordStoreKWallet();
+  virtual ~PasswordStoreKWallet();
+
+  bool Init();
+
+ private:
+  typedef std::vector<PasswordForm*> PasswordFormList;
+
+  // Implements PasswordStore interface.
+  void AddLoginImpl(const PasswordForm& form);
+  void UpdateLoginImpl(const PasswordForm& form);
+  void RemoveLoginImpl(const PasswordForm& form);
+  void GetLoginsImpl(GetLoginsRequest* request);
+
+  // Initialisation.
+  bool StartKWalletd();
+  bool InitWallet();
+
+  // Reads a list of PasswordForms from the wallet that match the signon_realm
+  // of key.
+  void GetLoginsList(PasswordFormList* forms, const PasswordForm& key,
+                     int wallet_handle);
+
+  // Writes a list of PasswordForms to the wallet with the signon_realm from
+  // key.  Overwrites any existing list for this key.
+  void SetLoginsList(const PasswordFormList& forms, const PasswordForm& key,
+                     int wallet_handle);
+
+  // Checks if the last dbus call returned an error.  If it did, logs the error
+  // message, frees it and returns true.
+  // This must be called after every dbus call.
+  bool CheckError();
+
+  // Opens the wallet and ensures that the "Chrome Form Data" folder exists.
+  // Returns kInvalidWalletHandle on error.
+  int WalletHandle();
+
+  // Compares two PasswordForms and returns true if they are the same.
+  // Checks only the fields that we persist in KWallet, and ignores
+  // password_value.
+  static bool CompareForms(const PasswordForm& a, const PasswordForm& b);
+
+  // Serializes a list of PasswordForms to be stored in the wallet.
+  static void SerializeValue(const PasswordFormList& forms, Pickle* pickle);
+
+  // Deserializes a list of PasswordForms from the wallet.
+  static void DeserializeValue(const PasswordForm& key, const Pickle& pickle,
+                               PasswordFormList* forms);
+
+  // Convenience function to read a GURL from a Pickle.  Assumes the URL has
+  // been written as a std::string.
+  static void ReadGURL(const Pickle& pickle, void** iter, GURL* url);
+
+  // Name of the application - will appear in kwallet's dialogs.
+  static const char* kAppId;
+  // Name of the folder to store passwords in.
+  static const char* kKWalletFolder;
+
+  // DBUS stuff.
+  static const char* kKWalletServiceName;
+  static const char* kKWalletPath;
+  static const char* kKWalletInterface;
+  static const char* kKLauncherServiceName;
+  static const char* kKLauncherPath;
+  static const char* kKLauncherInterface;
+
+  // Invalid handle returned by WalletHandle().
+  static const int kInvalidKWalletHandle = -1;
+
+  // Controls all access to kwallet dbus calls.
+  Lock kwallet_lock_;
+
+  // Error from the last dbus call.  NULL when there's no error.  Freed and
+  // cleared by CheckError().
+  GError* error_;
+  // Connection to the dbus session bus.
+  DBusGConnection* connection_;
+  // Proxy to the kwallet dbus service.
+  DBusGProxy* proxy_;
+
+  // The name of the wallet we've opened.  Set during Init().
+  std::string wallet_name_;
+
+  DISALLOW_COPY_AND_ASSIGN(PasswordStoreKWallet);
+};
+
+#endif  // CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_STORE_KWALLET