chrome/installer/util/compat_checks.cc

   1 // Copyright (c) 2010 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/compat_checks.h"
   6
   7 #include "base/strings/string_number_conversions.h"
   8 #include "base/strings/string_split.h"
   9 #include "base/strings/string_util.h"
  10 #include "base/win/registry.h"
  11
  12 namespace {
  13
  14 // SEP stands for Symantec End Point Protection.
  15 std::wstring GetSEPVersion() {
  16   const wchar_t kProductKey[] =
  17       L"SOFTWARE\\Symantec\\Symantec Endpoint Protection\\SMC";
  18   base::win::RegKey key(HKEY_LOCAL_MACHINE, kProductKey, KEY_READ);
  19   std::wstring version_str;
  20   key.ReadValue(L"ProductVersion", &version_str);
  21   return version_str;
  22 }
  23
  24 // The product version should be a string like "11.0.3001.2224". This function
  25 // returns as params the first 3 values. Return value is false if anything
  26 // does not fit the format.
  27 bool ParseSEPVersion(const std::wstring& version, int* v0, int* v1, int* v2) {
  28   std::vector<std::wstring> v;
  29   base::SplitString(version, L'.', &v);
  30   if (v.size() != 4)
  31     return false;
  32   if (!base::StringToInt(v[0], v0))
  33     return false;
  34   if (!base::StringToInt(v[1], v1))
  35     return false;
  36   if (!base::StringToInt(v[2], v2))
  37     return false;
  38   return true;
  39 }
  40
  41 // The incompatible versions are anything before 11MR3, which is 11.0.3001.
  42 bool IsBadSEPVersion(int v0, int v1, int v2) {
  43   if (v0 < 11)
  44     return true;
  45   if (v1 > 0)
  46     return false;
  47   if (v2 < 3001)
  48     return true;
  49   return false;
  50 }
  51
  52 }  // namespace
  53
  54 bool HasIncompatibleSymantecEndpointVersion(const wchar_t* version) {
  55   int v0, v1, v2;
  56   std::wstring ver_str(version ? version : GetSEPVersion());
  57   if (!ParseSEPVersion(ver_str, &v0, &v1, &v2))
  58     return false;
  59   return IsBadSEPVersion(v0, v1, v2);
  60 }