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   virtual void ProcessAction(scoped_refptr<Action> action) OVERRIDE;
  30
  31   virtual 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
  39           <void(scoped_ptr<Action::ActionVector>)>& callback) OVERRIDE;
  40
  41   virtual void Close() OVERRIDE;
  42
  43   // Clean the URL data stored for this policy.
  44   virtual void RemoveURLs(const std::vector<GURL>& restrict_urls) OVERRIDE;
  45
  46   // Clean the data related to this extension for this policy.
  47   virtual void RemoveExtensionData(const std::string& extension_id) OVERRIDE;
  48
  49   // Delete everything in the database.
  50   virtual void DeleteDatabase() OVERRIDE;
  51
  52   // Database table schema.
  53   static const char* kTableName;
  54   static const char* kTableContentFields[];
  55   static const char* kTableFieldTypes[];
  56   static const int kTableFieldCount;
  57
  58  protected:
  59   // Only ever run by OnDatabaseClose() below; see the comments on the
  60   // ActivityDatabase class for an overall discussion of how cleanup works.
  61   virtual ~FullStreamUIPolicy();
  62
  63   // The ActivityDatabase::Delegate interface.  These are always called from
  64   // the database thread.
  65   virtual bool InitDatabase(sql::Connection* db) OVERRIDE;
  66   virtual bool FlushDatabase(sql::Connection* db) OVERRIDE;
  67   virtual void OnDatabaseFailure() OVERRIDE;
  68   virtual void OnDatabaseClose() OVERRIDE;
  69
  70   // Strips arguments if needed by policy.  May return the original object (if
  71   // unmodified), or a copy (if modifications were made).  The implementation
  72   // in FullStreamUIPolicy returns the action unmodified.
  73   virtual scoped_refptr<Action> ProcessArguments(
  74       scoped_refptr<Action> action) const;
  75
  76   // The implementation of RemoveURLs; this must only run on the database
  77   // thread.
  78   void DoRemoveURLs(const std::vector<GURL>& restrict_urls);
  79
  80   // The implementation of RemoveExtensionData; this must only run on the
  81   // database thread.
  82   void DoRemoveExtensionData(const std::string& extension_id);
  83
  84   // The implementation of DeleteDatabase; this must only run on the database
  85   // thread.
  86   void DoDeleteDatabase();
  87
  88   // Tracks any pending updates to be written to the database, if write
  89   // batching is turned on.  Should only be accessed from the database thread.
  90   Action::ActionVector queued_actions_;
  91
  92  private:
  93   // Adds an Action to queued_actions_; this should be invoked only on the
  94   // database thread.
  95   void QueueAction(scoped_refptr<Action> action);
  96
  97   // Internal method to read data from the database; called on the database
  98   // thread.
  99   scoped_ptr<Action::ActionVector> DoReadFilteredData(
 100       const std::string& extension_id,
 101       const Action::ActionType type,
 102       const std::string& api_name,
 103       const std::string& page_url,
 104       const std::string& arg_url,
 105       const int days_ago);
 106 };
 107
 108 }  // namespace extensions
 109
 110 #endif  // CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_FULLSTREAM_UI_POLICY_H_