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!816 改读取时区Id列表方式

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Merge pull request !816 from zhangdd_ewan/cherry-240904
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openharmony_ci 2024-09-19 11:01:20 +00:00 committed by Gitee
commit 76c9a0abb9
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2 changed files with 19 additions and 40 deletions
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4
frameworks/intl/include/utils.h
View File

@ -25,10 +25,6 @@
namespace OHOS {
namespace Global {
namespace I18n {
static const uint32_t BYTE_ARRAY_OFFSET_FIRST = 24;
static const uint32_t BYTE_ARRAY_OFFSET_SECOND = 16;
static const uint32_t BYTE_ARRAY_OFFSET_THIRD = 8;
static const uint32_t BYTE_ARRAY_INDEX_THIRD = 3;
static std::set<std::string> availableIDs;
void Split(const std::string &src, const std::string &sep, std::vector<std::string> &dest);

55
frameworks/intl/src/utils.cpp
View File

@ -13,6 +13,7 @@
* limitations under the License.
*/
#include <cerrno>
#include <algorithm>
#include <climits>
#include <filesystem>
@ -39,8 +40,8 @@ using namespace std;
static const std::string PSEUDO_LOCALE_TAG = "en-XA";
static const std::string PSEUDO_START_TAG = "{";
static const std::string PSEUDO_END_TAG = "}";
static const char *TZDATA_PATH = "/system/etc/zoneinfo/tzdata";
static const char *DISTRO_TZDATA_PATH = "/system/etc/tzdata_distro/hos/tzdata";
constexpr const char *TIMEZONE_LIST_CONFIG_PATH = "/system/etc/zoneinfo/timezone_list.cfg";
constexpr const char *DISTRO_TIMEZONE_LIST_CONFIG = "/system/etc/tzdata_distro/timezone_list.cfg";
static std::mutex validLocaleMutex;
void Split(const string &src, const string &sep, vector<string> &dest)
@ -311,51 +312,33 @@ bool CheckSystemPermission()
return true;
}
size_t ConvertBytesToSizeT(const char *byteArray)
{
size_t num0 = static_cast<size_t>(byteArray[0]) << BYTE_ARRAY_OFFSET_FIRST;
size_t num1 = static_cast<size_t>(byteArray[1]) << BYTE_ARRAY_OFFSET_SECOND;
size_t num2 = static_cast<size_t>(byteArray[2]) << BYTE_ARRAY_OFFSET_THIRD;
return num0 + num1 + num2 + static_cast<size_t>(byteArray[BYTE_ARRAY_INDEX_THIRD]);
}
std::set<std::string> GetTimeZoneAvailableIDs(I18nErrorCode &errorCode)
{
if (availableIDs.size() != 0) {
return availableIDs;
}
struct stat s;
const char *tzdataFilePath = stat(DISTRO_TZDATA_PATH, &s) == 0 ? DISTRO_TZDATA_PATH : TZDATA_PATH;
std::unique_ptr<char[]> resolvedPath = std::make_unique<char[]>(PATH_MAX);
if (realpath(tzdataFilePath, resolvedPath.get()) == nullptr) {
HILOG_ERROR_I18N("GetTimeZoneAvailableIDs tzdata file path isn't exists.");
const char *tzIdConfigPath = stat(DISTRO_TIMEZONE_LIST_CONFIG, &s) == 0 ?
DISTRO_TIMEZONE_LIST_CONFIG : TIMEZONE_LIST_CONFIG_PATH;
std::unique_ptr<char[]> resolvedPath = std::make_unique<char[]>(PATH_MAX + 1);
if (realpath(tzIdConfigPath, resolvedPath.get()) == nullptr) {
HILOG_ERROR_I18N("Get realpath failed, errno: %{public}d.", errno);
return availableIDs;
}
std::ifstream tzdataFile(resolvedPath.get(), std::ios::in | std::ios::binary);
if (!tzdataFile.is_open()) {
HILOG_ERROR_I18N("Open tzdata failed");
std::ifstream file(resolvedPath.get());
if (!file.good()) {
HILOG_ERROR_I18N("Open timezone list config file failed.");
return availableIDs;
}
const size_t versionLength = 12;
tzdataFile.ignore(versionLength);
// offset means indexOffset or dataOffset.
const size_t offsetSize = 4;
// tempSize is the length of one index, include tz id length, data offset and tz file length.
const size_t tempSize = 48;
char *temp = new char[tempSize];
const size_t offsetSizeTwice = 2;
tzdataFile.read(temp, offsetSize * offsetSizeTwice);
size_t indexOffset = ConvertBytesToSizeT(temp);
size_t dataOffset = ConvertBytesToSizeT(temp + offsetSize);
tzdataFile.ignore(offsetSize);
while (indexOffset < dataOffset) {
tzdataFile.read(temp, tempSize);
indexOffset += tempSize;
std::string tzid(temp);
availableIDs.insert(tzid);
std::string line;
while (std::getline(file, line)) {
if (line.length() == 0) {
break;
}
line = line.substr(0, line.find_last_not_of("\r\n") + 1);
availableIDs.insert(line);
}
tzdataFile.close();
delete[] temp;
file.close();
return availableIDs;
}
} // namespace I18n