diff options
Diffstat (limited to 'toolkit/mozapps/defaultagent/Registry.cpp')
| -rw-r--r-- | toolkit/mozapps/defaultagent/Registry.cpp | 325 |
1 files changed, 325 insertions, 0 deletions
diff --git a/toolkit/mozapps/defaultagent/Registry.cpp b/toolkit/mozapps/defaultagent/Registry.cpp new file mode 100644 index 0000000000..d0d1ea5a41 --- /dev/null +++ b/toolkit/mozapps/defaultagent/Registry.cpp @@ -0,0 +1,325 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "Registry.h" + +#include <windows.h> +#include <shlwapi.h> + +#include "common.h" +#include "EventLog.h" +#include "UtfConvert.h" + +#include "mozilla/Buffer.h" + +using WStringResult = mozilla::WindowsErrorResult<std::wstring>; + +static WStringResult MaybePrefixRegistryValueName( + IsPrefixed isPrefixed, const wchar_t* registryValueNameSuffix) { + if (isPrefixed == IsPrefixed::Unprefixed) { + std::wstring registryValueName = registryValueNameSuffix; + return registryValueName; + } + + mozilla::UniquePtr<wchar_t[]> installPath = mozilla::GetFullBinaryPath(); + if (!PathRemoveFileSpecW(installPath.get())) { + HRESULT hr = HRESULT_FROM_WIN32(ERROR_BAD_PATHNAME); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + std::wstring registryValueName(installPath.get()); + registryValueName.append(L"|"); + registryValueName.append(registryValueNameSuffix); + + return registryValueName; +} + +// Creates a sub key of AGENT_REGKEY_NAME by appending the passed subKey. If +// subKey is null, nothing is appended. +static std::wstring MakeKeyName(const wchar_t* subKey) { + std::wstring keyName = AGENT_REGKEY_NAME; + if (subKey) { + keyName += L"\\"; + keyName += subKey; + } + return keyName; +} + +MaybeStringResult RegistryGetValueString( + IsPrefixed isPrefixed, const wchar_t* registryValueName, + const wchar_t* subKey /* = nullptr */) { + // Get the full registry value name + WStringResult registryValueNameResult = + MaybePrefixRegistryValueName(isPrefixed, registryValueName); + if (registryValueNameResult.isErr()) { + return mozilla::Err(registryValueNameResult.unwrapErr()); + } + std::wstring valueName = registryValueNameResult.unwrap(); + + std::wstring keyName = MakeKeyName(subKey); + + // Get the string size + DWORD wideDataSize = 0; + LSTATUS ls = + RegGetValueW(HKEY_CURRENT_USER, keyName.c_str(), valueName.c_str(), + RRF_RT_REG_SZ, nullptr, nullptr, &wideDataSize); + if (ls == ERROR_FILE_NOT_FOUND) { + return mozilla::Maybe<std::string>(mozilla::Nothing()); + } else if (ls != ERROR_SUCCESS) { + HRESULT hr = HRESULT_FROM_WIN32(ls); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + + // Convert bytes to characters. The extra character should be unnecessary, but + // addresses the possible rounding problem inherent with integer division. + DWORD charCount = (wideDataSize / sizeof(wchar_t)) + 1; + + // Read the data from the registry into a wide string + mozilla::Buffer<wchar_t> wideData(charCount); + ls = RegGetValueW(HKEY_CURRENT_USER, keyName.c_str(), valueName.c_str(), + RRF_RT_REG_SZ, nullptr, wideData.Elements(), &wideDataSize); + if (ls != ERROR_SUCCESS) { + HRESULT hr = HRESULT_FROM_WIN32(ls); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + + // Convert to narrow string and return. + std::string narrowData; + MOZ_TRY_VAR(narrowData, Utf16ToUtf8(wideData.Elements())); + + return mozilla::Some(narrowData); +} + +VoidResult RegistrySetValueString(IsPrefixed isPrefixed, + const wchar_t* registryValueName, + const char* newValue, + const wchar_t* subKey /* = nullptr */) { + // Get the full registry value name + WStringResult registryValueNameResult = + MaybePrefixRegistryValueName(isPrefixed, registryValueName); + if (registryValueNameResult.isErr()) { + return mozilla::Err(registryValueNameResult.unwrapErr()); + } + std::wstring valueName = registryValueNameResult.unwrap(); + + std::wstring keyName = MakeKeyName(subKey); + + // Convert the value from a narrow string to a wide string + std::wstring wideValue; + MOZ_TRY_VAR(wideValue, Utf8ToUtf16(newValue)); + + // Store the value + LSTATUS ls = RegSetKeyValueW(HKEY_CURRENT_USER, keyName.c_str(), + valueName.c_str(), REG_SZ, wideValue.c_str(), + (wideValue.size() + 1) * sizeof(wchar_t)); + if (ls != ERROR_SUCCESS) { + HRESULT hr = HRESULT_FROM_WIN32(ls); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + + return mozilla::Ok(); +} + +MaybeBoolResult RegistryGetValueBool(IsPrefixed isPrefixed, + const wchar_t* registryValueName, + const wchar_t* subKey /* = nullptr */) { + // Get the full registry value name + WStringResult registryValueNameResult = + MaybePrefixRegistryValueName(isPrefixed, registryValueName); + if (registryValueNameResult.isErr()) { + return mozilla::Err(registryValueNameResult.unwrapErr()); + } + std::wstring valueName = registryValueNameResult.unwrap(); + + std::wstring keyName = MakeKeyName(subKey); + + // Read the integer value from the registry + DWORD value; + DWORD valueSize = sizeof(DWORD); + LSTATUS ls = + RegGetValueW(HKEY_CURRENT_USER, keyName.c_str(), valueName.c_str(), + RRF_RT_REG_DWORD, nullptr, &value, &valueSize); + if (ls == ERROR_FILE_NOT_FOUND) { + return mozilla::Maybe<bool>(mozilla::Nothing()); + } + if (ls != ERROR_SUCCESS) { + HRESULT hr = HRESULT_FROM_WIN32(ls); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + + return mozilla::Some(value != 0); +} + +VoidResult RegistrySetValueBool(IsPrefixed isPrefixed, + const wchar_t* registryValueName, bool newValue, + const wchar_t* subKey /* = nullptr */) { + // Get the full registry value name + WStringResult registryValueNameResult = + MaybePrefixRegistryValueName(isPrefixed, registryValueName); + if (registryValueNameResult.isErr()) { + return mozilla::Err(registryValueNameResult.unwrapErr()); + } + std::wstring valueName = registryValueNameResult.unwrap(); + + std::wstring keyName = MakeKeyName(subKey); + + // Write the value to the registry + DWORD value = newValue ? 1 : 0; + LSTATUS ls = + RegSetKeyValueW(HKEY_CURRENT_USER, keyName.c_str(), valueName.c_str(), + REG_DWORD, &value, sizeof(DWORD)); + if (ls != ERROR_SUCCESS) { + HRESULT hr = HRESULT_FROM_WIN32(ls); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + + return mozilla::Ok(); +} + +MaybeQwordResult RegistryGetValueQword(IsPrefixed isPrefixed, + const wchar_t* registryValueName, + const wchar_t* subKey /* = nullptr */) { + // Get the full registry value name + WStringResult registryValueNameResult = + MaybePrefixRegistryValueName(isPrefixed, registryValueName); + if (registryValueNameResult.isErr()) { + return mozilla::Err(registryValueNameResult.unwrapErr()); + } + std::wstring valueName = registryValueNameResult.unwrap(); + + std::wstring keyName = MakeKeyName(subKey); + + // Read the integer value from the registry + ULONGLONG value; + DWORD valueSize = sizeof(ULONGLONG); + LSTATUS ls = + RegGetValueW(HKEY_CURRENT_USER, keyName.c_str(), valueName.c_str(), + RRF_RT_REG_QWORD, nullptr, &value, &valueSize); + if (ls == ERROR_FILE_NOT_FOUND) { + return mozilla::Maybe<ULONGLONG>(mozilla::Nothing()); + } + if (ls != ERROR_SUCCESS) { + HRESULT hr = HRESULT_FROM_WIN32(ls); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + + return mozilla::Some(value); +} + +VoidResult RegistrySetValueQword(IsPrefixed isPrefixed, + const wchar_t* registryValueName, + ULONGLONG newValue, + const wchar_t* subKey /* = nullptr */) { + // Get the full registry value name + WStringResult registryValueNameResult = + MaybePrefixRegistryValueName(isPrefixed, registryValueName); + if (registryValueNameResult.isErr()) { + return mozilla::Err(registryValueNameResult.unwrapErr()); + } + std::wstring valueName = registryValueNameResult.unwrap(); + + std::wstring keyName = MakeKeyName(subKey); + + // Write the value to the registry + LSTATUS ls = + RegSetKeyValueW(HKEY_CURRENT_USER, keyName.c_str(), valueName.c_str(), + REG_QWORD, &newValue, sizeof(ULONGLONG)); + if (ls != ERROR_SUCCESS) { + HRESULT hr = HRESULT_FROM_WIN32(ls); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + + return mozilla::Ok(); +} + +MaybeDwordResult RegistryGetValueDword(IsPrefixed isPrefixed, + const wchar_t* registryValueName, + const wchar_t* subKey /* = nullptr */) { + // Get the full registry value name + WStringResult registryValueNameResult = + MaybePrefixRegistryValueName(isPrefixed, registryValueName); + if (registryValueNameResult.isErr()) { + return mozilla::Err(registryValueNameResult.unwrapErr()); + } + std::wstring valueName = registryValueNameResult.unwrap(); + + std::wstring keyName = MakeKeyName(subKey); + + // Read the integer value from the registry + uint32_t value; + DWORD valueSize = sizeof(uint32_t); + LSTATUS ls = + RegGetValueW(HKEY_CURRENT_USER, keyName.c_str(), valueName.c_str(), + RRF_RT_DWORD, nullptr, &value, &valueSize); + if (ls == ERROR_FILE_NOT_FOUND) { + return mozilla::Maybe<uint32_t>(mozilla::Nothing()); + } + if (ls != ERROR_SUCCESS) { + HRESULT hr = HRESULT_FROM_WIN32(ls); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + + return mozilla::Some(value); +} + +VoidResult RegistrySetValueDword(IsPrefixed isPrefixed, + const wchar_t* registryValueName, + uint32_t newValue, + const wchar_t* subKey /* = nullptr */) { + // Get the full registry value name + WStringResult registryValueNameResult = + MaybePrefixRegistryValueName(isPrefixed, registryValueName); + if (registryValueNameResult.isErr()) { + return mozilla::Err(registryValueNameResult.unwrapErr()); + } + std::wstring valueName = registryValueNameResult.unwrap(); + + std::wstring keyName = MakeKeyName(subKey); + + // Write the value to the registry + LSTATUS ls = + RegSetKeyValueW(HKEY_CURRENT_USER, keyName.c_str(), valueName.c_str(), + REG_DWORD, &newValue, sizeof(uint32_t)); + if (ls != ERROR_SUCCESS) { + HRESULT hr = HRESULT_FROM_WIN32(ls); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + + return mozilla::Ok(); +} + +VoidResult RegistryDeleteValue(IsPrefixed isPrefixed, + const wchar_t* registryValueName, + const wchar_t* subKey /* = nullptr */) { + // Get the full registry value name + WStringResult registryValueNameResult = + MaybePrefixRegistryValueName(isPrefixed, registryValueName); + if (registryValueNameResult.isErr()) { + return mozilla::Err(registryValueNameResult.unwrapErr()); + } + std::wstring valueName = registryValueNameResult.unwrap(); + + std::wstring keyName = MakeKeyName(subKey); + + LSTATUS ls = + RegDeleteKeyValueW(HKEY_CURRENT_USER, keyName.c_str(), valueName.c_str()); + if (ls != ERROR_SUCCESS) { + HRESULT hr = HRESULT_FROM_WIN32(ls); + LOG_ERROR(hr); + return mozilla::Err(mozilla::WindowsError::FromHResult(hr)); + } + + return mozilla::Ok(); +} |