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| 1 // Copyright (c) 2012 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 "remoting/host/usage_stats_consent.h" |
| 6 |
| 7 #include <windows.h> |
| 8 #include <string> |
| 9 |
| 10 #include "base/stringprintf.h" |
| 11 #include "base/win/registry.h" |
| 12 #include "remoting/host/constants.h" |
| 13 |
| 14 namespace { |
| 15 |
| 16 // The following strings are used to construct the registry key names where |
| 17 // we record whether the user has consented to crash dump collection. |
| 18 const wchar_t kOmahaClientStateKeyFormat[] = |
| 19 L"Software\\Google\\Update\\%ls\\%ls"; |
| 20 const wchar_t kOmahaClientState[] = L"ClientState"; |
| 21 const wchar_t kOmahaClientStateMedium[] = L"ClientStateMedium"; |
| 22 const wchar_t kOmahaUsagestatsValue[] = L"usagestats"; |
| 23 |
| 24 LONG ReadUsageStatsValue(const wchar_t* state_key, DWORD* usagestats_out) { |
| 25 std::wstring client_state = StringPrintf(kOmahaClientStateKeyFormat, |
| 26 state_key, |
| 27 remoting::kHostOmahaAppid); |
| 28 base::win::RegKey key; |
| 29 LONG result = key.Open(HKEY_LOCAL_MACHINE, client_state.c_str(), KEY_READ); |
| 30 if (result != ERROR_SUCCESS) { |
| 31 return result; |
| 32 } |
| 33 |
| 34 return key.ReadValueDW(kOmahaUsagestatsValue, usagestats_out); |
| 35 } |
| 36 |
| 37 } // namespace |
| 38 |
| 39 namespace remoting { |
| 40 |
| 41 bool IsCrashReportingEnabled() { |
| 42 // The user's consent to collect crash dumps is recored as the "usagestats" |
| 43 // value in the ClientState or ClientStateMedium key. Probe |
| 44 // the ClientStateMedium key first. |
| 45 DWORD value = 0; |
| 46 if (ReadUsageStatsValue(kOmahaClientStateMedium, &value) == ERROR_SUCCESS) { |
| 47 return value != 0; |
| 48 } |
| 49 if (ReadUsageStatsValue(kOmahaClientState, &value) == ERROR_SUCCESS) { |
| 50 return value != 0; |
| 51 } |
| 52 |
| 53 // Do not collect anything unless the user has explicitly allowed it. |
| 54 return false; |
| 55 } |
| 56 |
| 57 } // namespace remoting |
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