chrome/installer/util/app_command.cc

   1 // Copyright (c) 2011 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 #include "chrome/installer/util/app_command.h"
   6
   7 #include "base/logging.h"
   8 #include "base/win/registry.h"
   9 #include "chrome/installer/util/google_update_constants.h"
  10 #include "chrome/installer/util/work_item_list.h"
  11
  12 namespace installer {
  13
  14 // static
  15 // Associate bool member variables with registry entries.
  16 const AppCommand::NamedBoolVar AppCommand::kNameBoolVars[] = {
  17   {&AppCommand::sends_pings_,
  18        google_update::kRegSendsPingsField},
  19   {&AppCommand::is_web_accessible_,
  20        google_update::kRegWebAccessibleField},
  21   {&AppCommand::is_auto_run_on_os_upgrade_,
  22        google_update::kRegAutoRunOnOSUpgradeField},
  23   {&AppCommand::is_run_as_user_,
  24        google_update::kRegRunAsUserField},
  25 };
  26
  27 AppCommand::AppCommand()
  28     : sends_pings_(false),
  29       is_web_accessible_(false),
  30       is_auto_run_on_os_upgrade_(false),
  31       is_run_as_user_(false) {
  32 }
  33
  34 AppCommand::AppCommand(const base::string16& command_line)
  35     : command_line_(command_line),
  36       sends_pings_(false),
  37       is_web_accessible_(false),
  38       is_auto_run_on_os_upgrade_(false),
  39       is_run_as_user_(false) {
  40 }
  41
  42 bool AppCommand::Initialize(const base::win::RegKey& key) {
  43   if (!key.Valid()) {
  44     LOG(DFATAL) << "Cannot initialize an AppCommand from an invalid key.";
  45     return false;
  46   }
  47
  48   LONG result = ERROR_SUCCESS;
  49   base::string16 cmd_line;
  50
  51   result = key.ReadValue(google_update::kRegCommandLineField, &cmd_line);
  52   if (result != ERROR_SUCCESS) {
  53     LOG(WARNING) << "Error reading " << google_update::kRegCommandLineField
  54                  << " value from registry: " << result;
  55     return false;
  56   }
  57
  58   command_line_.swap(cmd_line);
  59
  60   for (int i = 0; i < arraysize(kNameBoolVars); ++i) {
  61     DWORD value = 0;  // Set default to false.
  62     // Note: ReadValueDW only modifies out param on success.
  63     key.ReadValueDW(kNameBoolVars[i].name, &value);
  64     this->*(kNameBoolVars[i].data) = (value != 0);
  65   }
  66
  67   return true;
  68 }
  69
  70 void AppCommand::AddWorkItems(HKEY predefined_root,
  71                               const base::string16& command_path,
  72                               WorkItemList* item_list) const {
  73   // Command_path is derived from GetRegCommandKey which always returns
  74   // value from GetVersionKey() which should be 32-bit hive.
  75   item_list->AddCreateRegKeyWorkItem(
  76                  predefined_root, command_path, KEY_WOW64_32KEY)
  77       ->set_log_message("creating AppCommand registry key");
  78   item_list->AddSetRegValueWorkItem(predefined_root,
  79                                     command_path,
  80                                     KEY_WOW64_32KEY,
  81                                     google_update::kRegCommandLineField,
  82                                     command_line_,
  83                                     true)
  84       ->set_log_message("setting AppCommand CommandLine registry value");
  85
  86   for (int i = 0; i < arraysize(kNameBoolVars); ++i) {
  87     const wchar_t* var_name = kNameBoolVars[i].name;
  88     bool var_data = this->*(kNameBoolVars[i].data);
  89
  90     // Adds a work item to set |var_name| to DWORD 1 if |var_data| is true;
  91     // adds a work item to remove |var_name| otherwise.
  92     if (var_data) {
  93       item_list->AddSetRegValueWorkItem(predefined_root,
  94                                         command_path,
  95                                         KEY_WOW64_32KEY,
  96                                         var_name,
  97                                         static_cast<DWORD>(1),
  98                                         true);
  99     } else {
 100       item_list->AddDeleteRegValueWorkItem(
 101           predefined_root, command_path, KEY_WOW64_32KEY, var_name);
 102     }
 103   }
 104 }
 105
 106 }  // namespace installer