chrome/browser/extensions/activity_log/fullstream_ui_policy.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_FULLSTREAM_UI_POLICY_H_
   6 #define CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_FULLSTREAM_UI_POLICY_H_
   7
   8 #include <string>
   9
  10 #include "chrome/browser/extensions/activity_log/activity_database.h"
  11 #include "chrome/browser/extensions/activity_log/activity_log_policy.h"
  12
  13 class GURL;
  14
  15 namespace extensions {
  16
  17 // A policy for logging the full stream of actions, including all arguments.
  18 // It's mostly intended to be used in testing and analysis.
  19 //
  20 // NOTE: The FullStreamUIPolicy deliberately keeps almost all information,
  21 // including some data that could be privacy sensitive (full URLs including
  22 // incognito URLs, full headers when WebRequest is used, etc.).  It should not
  23 // be used during normal browsing if users care about privacy.
  24 class FullStreamUIPolicy : public ActivityLogDatabasePolicy {
  25  public:
  26   // For more info about these member functions, see the super class.
  27   explicit FullStreamUIPolicy(Profile* profile);
  28
  29   void ProcessAction(scoped_refptr<Action> action) override;
  30
  31   void ReadFilteredData(
  32       const std::string& extension_id,
  33       const Action::ActionType type,
  34       const std::string& api_name,
  35       const std::string& page_url,
  36       const std::string& arg_url,
  37       const int days_ago,
  38       const base::Callback<void(scoped_ptr<Action::ActionVector>)>& callback)
  39       override;
  40
  41   void Close() override;
  42
  43   // Remove the actions stored for this policy according to the passed IDs.
  44   void RemoveActions(const std::vector<int64>& action_ids) override;
  45
  46   // Clean the URL data stored for this policy.
  47   void RemoveURLs(const std::vector<GURL>& restrict_urls) override;
  48
  49   // Clean the data related to this extension for this policy.
  50   void RemoveExtensionData(const std::string& extension_id) override;
  51
  52   // Delete everything in the database.
  53   void DeleteDatabase() override;
  54
  55   // Database table schema.
  56   static const char kTableName[];
  57   static const char* const kTableContentFields[];
  58   static const char* const kTableFieldTypes[];
  59   static const int kTableFieldCount;
  60
  61  protected:
  62   // Only ever run by OnDatabaseClose() below; see the comments on the
  63   // ActivityDatabase class for an overall discussion of how cleanup works.
  64   ~FullStreamUIPolicy() override;
  65
  66   // The ActivityDatabase::Delegate interface.  These are always called from
  67   // the database thread.
  68   bool InitDatabase(sql::Connection* db) override;
  69   bool FlushDatabase(sql::Connection* db) override;
  70   void OnDatabaseFailure() override;
  71   void OnDatabaseClose() override;
  72
  73   // Strips arguments if needed by policy.  May return the original object (if
  74   // unmodified), or a copy (if modifications were made).  The implementation
  75   // in FullStreamUIPolicy returns the action unmodified.
  76   virtual scoped_refptr<Action> ProcessArguments(
  77       scoped_refptr<Action> action) const;
  78
  79   // The implementation of RemoveActions; this must only run on the database
  80   // thread.
  81   void DoRemoveActions(const std::vector<int64>& action_ids);
  82
  83   // The implementation of RemoveURLs; this must only run on the database
  84   // thread.
  85   void DoRemoveURLs(const std::vector<GURL>& restrict_urls);
  86
  87   // The implementation of RemoveExtensionData; this must only run on the
  88   // database thread.
  89   void DoRemoveExtensionData(const std::string& extension_id);
  90
  91   // The implementation of DeleteDatabase; this must only run on the database
  92   // thread.
  93   void DoDeleteDatabase();
  94
  95   // Tracks any pending updates to be written to the database, if write
  96   // batching is turned on.  Should only be accessed from the database thread.
  97   Action::ActionVector queued_actions_;
  98
  99  private:
 100   // Adds an Action to queued_actions_; this should be invoked only on the
 101   // database thread.
 102   void QueueAction(scoped_refptr<Action> action);
 103
 104   // Internal method to read data from the database; called on the database
 105   // thread.
 106   scoped_ptr<Action::ActionVector> DoReadFilteredData(
 107       const std::string& extension_id,
 108       const Action::ActionType type,
 109       const std::string& api_name,
 110       const std::string& page_url,
 111       const std::string& arg_url,
 112       const int days_ago);
 113 };
 114
 115 }  // namespace extensions
 116
 117 #endif  // CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_FULLSTREAM_UI_POLICY_H_