| 1 | // Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. |
| 2 | |
| 3 | #include "precomp.h" |
| 4 | |
| 5 | |
| 6 | // Exit macros |
| 7 | #define TimeExitOnLastError(x, s, ...) ExitOnLastErrorSource(DUTIL_SOURCE_TIMEUTIL, x, s, __VA_ARGS__) |
| 8 | #define TimeExitOnLastErrorDebugTrace(x, s, ...) ExitOnLastErrorDebugTraceSource(DUTIL_SOURCE_TIMEUTIL, x, s, __VA_ARGS__) |
| 9 | #define TimeExitWithLastError(x, s, ...) ExitWithLastErrorSource(DUTIL_SOURCE_TIMEUTIL, x, s, __VA_ARGS__) |
| 10 | #define TimeExitOnFailure(x, s, ...) ExitOnFailureSource(DUTIL_SOURCE_TIMEUTIL, x, s, __VA_ARGS__) |
| 11 | #define TimeExitOnRootFailure(x, s, ...) ExitOnRootFailureSource(DUTIL_SOURCE_TIMEUTIL, x, s, __VA_ARGS__) |
| 12 | #define TimeExitOnFailureDebugTrace(x, s, ...) ExitOnFailureDebugTraceSource(DUTIL_SOURCE_TIMEUTIL, x, s, __VA_ARGS__) |
| 13 | #define TimeExitOnNull(p, x, e, s, ...) ExitOnNullSource(DUTIL_SOURCE_TIMEUTIL, p, x, e, s, __VA_ARGS__) |
| 14 | #define TimeExitOnNullWithLastError(p, x, s, ...) ExitOnNullWithLastErrorSource(DUTIL_SOURCE_TIMEUTIL, p, x, s, __VA_ARGS__) |
| 15 | #define TimeExitOnNullDebugTrace(p, x, e, s, ...) ExitOnNullDebugTraceSource(DUTIL_SOURCE_TIMEUTIL, p, x, e, s, __VA_ARGS__) |
| 16 | #define TimeExitOnInvalidHandleWithLastError(p, x, s, ...) ExitOnInvalidHandleWithLastErrorSource(DUTIL_SOURCE_TIMEUTIL, p, x, s, __VA_ARGS__) |
| 17 | #define TimeExitOnWin32Error(e, x, s, ...) ExitOnWin32ErrorSource(DUTIL_SOURCE_TIMEUTIL, e, x, s, __VA_ARGS__) |
| 18 | #define TimeExitOnGdipFailure(g, x, s, ...) ExitOnGdipFailureSource(DUTIL_SOURCE_TIMEUTIL, g, x, s, __VA_ARGS__) |
| 19 | |
| 20 | const LPCWSTR DAY_OF_WEEK[] = { L"Sun", L"Mon", L"Tue", L"Wed", L"Thu", L"Fri", L"Sat" }; |
| 21 | const LPCWSTR MONTH_OF_YEAR[] = { L"None", L"Jan", L"Feb", L"Mar", L"Apr", L"May", L"Jun", L"Jul", L"Aug", L"Sep", L"Oct", L"Nov", L"Dec" }; |
| 22 | enum TIME_PARSER { DayOfWeek, DayOfMonth, MonthOfYear, Year, Hours, Minutes, Seconds, TimeZone }; |
| 23 | enum TIME_PARSERRFC3339 { RFC3339_Year, RFC3339_Month, RFC3339_Day, RFC3339_Hours, RFC3339_Minutes, RFC3339_Seconds, RFC3339_TimeZone }; |
| 24 | |
| 25 | // prototypes |
| 26 | static HRESULT DayFromString( |
| 27 | __in_z LPCWSTR wzDay, |
| 28 | __out WORD* pwDayOfWeek |
| 29 | ); |
| 30 | static HRESULT MonthFromString( |
| 31 | __in_z LPCWSTR wzMonth, |
| 32 | __out WORD* pwMonthOfYear |
| 33 | ); |
| 34 | |
| 35 | |
| 36 | /******************************************************************** |
| 37 | TimeFromString - converts string to FILETIME |
| 38 | |
| 39 | *******************************************************************/ |
| 40 | extern "C" HRESULT DAPI TimeFromString( |
| 41 | __in_z LPCWSTR wzTime, |
| 42 | __out FILETIME* pFileTime |
| 43 | ) |
| 44 | { |
| 45 | Assert(wzTime && pFileTime); |
| 46 | |
| 47 | HRESULT hr = S_OK; |
| 48 | LPWSTR pwzTime = NULL; |
| 49 | |
| 50 | SYSTEMTIME sysTime = { }; |
| 51 | TIME_PARSER timeParser = DayOfWeek; |
| 52 | |
| 53 | LPCWSTR pwzStart = NULL; |
| 54 | LPWSTR pwzEnd = NULL; |
| 55 | |
| 56 | hr = StrAllocString(&pwzTime, wzTime, 0); |
| 57 | TimeExitOnFailure(hr, "Failed to copy time."); |
| 58 | |
| 59 | pwzStart = pwzEnd = pwzTime; |
| 60 | while (pwzEnd && *pwzEnd) |
| 61 | { |
| 62 | if (L',' == *pwzEnd || L' ' == *pwzEnd || L':' == *pwzEnd) |
| 63 | { |
| 64 | *pwzEnd = L'\0'; // null terminate |
| 65 | ++pwzEnd; |
| 66 | |
| 67 | while (L' ' == *pwzEnd) |
| 68 | { |
| 69 | ++pwzEnd; // and skip past the blank space |
| 70 | } |
| 71 | |
| 72 | switch (timeParser) |
| 73 | { |
| 74 | case DayOfWeek: |
| 75 | hr = DayFromString(pwzStart, &sysTime.wDayOfWeek); |
| 76 | TimeExitOnFailure(hr, "Failed to convert string to day: %ls", pwzStart); |
| 77 | break; |
| 78 | |
| 79 | case DayOfMonth: |
| 80 | sysTime.wDay = (WORD)wcstoul(pwzStart, NULL, 10); |
| 81 | break; |
| 82 | |
| 83 | case MonthOfYear: |
| 84 | hr = MonthFromString(pwzStart, &sysTime.wMonth); |
| 85 | TimeExitOnFailure(hr, "Failed to convert to month: %ls", pwzStart); |
| 86 | break; |
| 87 | |
| 88 | case Year: |
| 89 | sysTime.wYear = (WORD)wcstoul(pwzStart, NULL, 10); |
| 90 | break; |
| 91 | |
| 92 | case Hours: |
| 93 | sysTime.wHour = (WORD)wcstoul(pwzStart, NULL, 10); |
| 94 | break; |
| 95 | |
| 96 | case Minutes: |
| 97 | sysTime.wMinute = (WORD)wcstoul(pwzStart, NULL, 10); |
| 98 | break; |
| 99 | |
| 100 | case Seconds: |
| 101 | sysTime.wSecond = (WORD)wcstoul(pwzStart, NULL, 10); |
| 102 | break; |
| 103 | |
| 104 | case TimeZone: |
| 105 | // TODO: do something with this in the future, but this should only hit outside of the while loop. |
| 106 | break; |
| 107 | |
| 108 | default: |
| 109 | break; |
| 110 | } |
| 111 | |
| 112 | pwzStart = pwzEnd; |
| 113 | timeParser = (TIME_PARSER)((int)timeParser + 1); |
| 114 | } |
| 115 | |
| 116 | ++pwzEnd; |
| 117 | } |
| 118 | |
| 119 | |
| 120 | if (!::SystemTimeToFileTime(&sysTime, pFileTime)) |
| 121 | { |
| 122 | TimeExitWithLastError(hr, "Failed to convert system time to file time."); |
| 123 | } |
| 124 | |
| 125 | LExit: |
| 126 | ReleaseStr(pwzTime); |
| 127 | |
| 128 | return hr; |
| 129 | } |
| 130 | |
| 131 | /******************************************************************** |
| 132 | TimeFromString3339 - converts string formated in accorance with RFC3339 to FILETIME |
| 133 | http://tools.ietf.org/html/rfc3339 |
| 134 | *******************************************************************/ |
| 135 | extern "C" HRESULT DAPI TimeFromString3339( |
| 136 | __in_z LPCWSTR wzTime, |
| 137 | __out FILETIME* pFileTime |
| 138 | ) |
| 139 | { |
| 140 | Assert(wzTime && pFileTime); |
| 141 | |
| 142 | HRESULT hr = S_OK; |
| 143 | LPWSTR pwzTime = NULL; |
| 144 | |
| 145 | SYSTEMTIME sysTime = { }; |
| 146 | TIME_PARSERRFC3339 timeParser = RFC3339_Year; |
| 147 | |
| 148 | LPCWSTR pwzStart = NULL; |
| 149 | LPWSTR pwzEnd = NULL; |
| 150 | |
| 151 | hr = StrAllocString(&pwzTime, wzTime, 0); |
| 152 | TimeExitOnFailure(hr, "Failed to copy time."); |
| 153 | |
| 154 | pwzStart = pwzEnd = pwzTime; |
| 155 | while (pwzEnd && *pwzEnd) |
| 156 | { |
| 157 | if (L'T' == *pwzEnd || L':' == *pwzEnd || L'-' == *pwzEnd) |
| 158 | { |
| 159 | *pwzEnd = L'\0'; // null terminate |
| 160 | ++pwzEnd; |
| 161 | |
| 162 | switch (timeParser) |
| 163 | { |
| 164 | case RFC3339_Year: |
| 165 | sysTime.wYear = (WORD)wcstoul(pwzStart, NULL, 10); |
| 166 | break; |
| 167 | |
| 168 | case RFC3339_Month: |
| 169 | sysTime.wMonth = (WORD)wcstoul(pwzStart, NULL, 10); |
| 170 | break; |
| 171 | |
| 172 | case RFC3339_Day: |
| 173 | sysTime.wDay = (WORD)wcstoul(pwzStart, NULL, 10); |
| 174 | break; |
| 175 | |
| 176 | case RFC3339_Hours: |
| 177 | sysTime.wHour = (WORD)wcstoul(pwzStart, NULL, 10); |
| 178 | break; |
| 179 | |
| 180 | case RFC3339_Minutes: |
| 181 | sysTime.wMinute = (WORD)wcstoul(pwzStart, NULL, 10); |
| 182 | break; |
| 183 | |
| 184 | case RFC3339_Seconds: |
| 185 | sysTime.wSecond = (WORD)wcstoul(pwzStart, NULL, 10); |
| 186 | break; |
| 187 | |
| 188 | case RFC3339_TimeZone: |
| 189 | // TODO: do something with this in the future, but this should only hit outside of the while loop. |
| 190 | break; |
| 191 | |
| 192 | default: |
| 193 | break; |
| 194 | } |
| 195 | |
| 196 | pwzStart = pwzEnd; |
| 197 | timeParser = (TIME_PARSERRFC3339)((int)timeParser + 1); |
| 198 | } |
| 199 | |
| 200 | ++pwzEnd; |
| 201 | } |
| 202 | |
| 203 | |
| 204 | if (!::SystemTimeToFileTime(&sysTime, pFileTime)) |
| 205 | { |
| 206 | TimeExitWithLastError(hr, "Failed to convert system time to file time."); |
| 207 | } |
| 208 | |
| 209 | LExit: |
| 210 | ReleaseStr(pwzTime); |
| 211 | |
| 212 | return hr; |
| 213 | } |
| 214 | /**************************************************************************** |
| 215 | TimeCurrentTime - gets the current time in string format |
| 216 | |
| 217 | ****************************************************************************/ |
| 218 | extern "C" HRESULT DAPI TimeCurrentTime( |
| 219 | __deref_out_z LPWSTR* ppwz, |
| 220 | __in BOOL fGMT |
| 221 | ) |
| 222 | { |
| 223 | SYSTEMTIME st; |
| 224 | |
| 225 | if (fGMT) |
| 226 | { |
| 227 | ::GetSystemTime(&st); |
| 228 | } |
| 229 | else |
| 230 | { |
| 231 | SYSTEMTIME stGMT; |
| 232 | TIME_ZONE_INFORMATION tzi; |
| 233 | |
| 234 | ::GetTimeZoneInformation(&tzi); |
| 235 | ::GetSystemTime(&stGMT); |
| 236 | ::SystemTimeToTzSpecificLocalTime(&tzi, &stGMT, &st); |
| 237 | } |
| 238 | |
| 239 | return StrAllocFormatted(ppwz, L"%02d:%02d:%02d", st.wHour, st.wMinute, st.wSecond); |
| 240 | } |
| 241 | |
| 242 | |
| 243 | /**************************************************************************** |
| 244 | TimeCurrentDateTime - gets the current date and time in string format, |
| 245 | per format described in RFC 3339 |
| 246 | ****************************************************************************/ |
| 247 | extern "C" HRESULT DAPI TimeCurrentDateTime( |
| 248 | __deref_out_z LPWSTR* ppwz, |
| 249 | __in BOOL fGMT |
| 250 | ) |
| 251 | { |
| 252 | SYSTEMTIME st; |
| 253 | |
| 254 | ::GetSystemTime(&st); |
| 255 | |
| 256 | return TimeSystemDateTime(ppwz, &st, fGMT); |
| 257 | } |
| 258 | |
| 259 | |
| 260 | /**************************************************************************** |
| 261 | TimeSystemDateTime - converts the provided system time struct to string format, |
| 262 | per format described in RFC 3339 |
| 263 | ****************************************************************************/ |
| 264 | extern "C" HRESULT DAPI TimeSystemDateTime( |
| 265 | __deref_out_z LPWSTR* ppwz, |
| 266 | __in const SYSTEMTIME *pst, |
| 267 | __in BOOL fGMT |
| 268 | ) |
| 269 | { |
| 270 | DWORD dwAbsBias = 0; |
| 271 | |
| 272 | if (fGMT) |
| 273 | { |
| 274 | return StrAllocFormatted(ppwz, L"%04hu-%02hu-%02huT%02hu:%02hu:%02huZ", pst->wYear, pst->wMonth, pst->wDay, pst->wHour, pst->wMinute, pst->wSecond); |
| 275 | } |
| 276 | else |
| 277 | { |
| 278 | SYSTEMTIME st; |
| 279 | TIME_ZONE_INFORMATION tzi; |
| 280 | |
| 281 | ::GetTimeZoneInformation(&tzi); |
| 282 | ::SystemTimeToTzSpecificLocalTime(&tzi, pst, &st); |
| 283 | dwAbsBias = abs(tzi.Bias); |
| 284 | |
| 285 | return StrAllocFormatted(ppwz, L"%04hu-%02hu-%02huT%02hu:%02hu:%02hu%c%02u:%02u", st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond, 0 >= tzi.Bias ? L'+' : L'-', dwAbsBias / 60, dwAbsBias % 60); |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | |
| 290 | /**************************************************************************** |
| 291 | TimeSystemToDateTimeString - converts the provided system time struct to |
| 292 | string format representing date and time for the specified locale |
| 293 | ****************************************************************************/ |
| 294 | HRESULT DAPI TimeSystemToDateTimeString( |
| 295 | __deref_out_z LPWSTR* ppwz, |
| 296 | __in const SYSTEMTIME* pst, |
| 297 | __in LCID locale |
| 298 | ) |
| 299 | { |
| 300 | HRESULT hr = S_OK; |
| 301 | const WCHAR * DATE_FORMAT = L"MMM dd',' yyyy',' "; |
| 302 | const WCHAR * TIME_FORMAT = L"hh':'mm':'ss tt"; |
| 303 | int iLenDate = 0; |
| 304 | int iLenTime = 0; |
| 305 | |
| 306 | iLenDate = ::GetDateFormatW(locale, 0, pst, DATE_FORMAT, NULL, 0); |
| 307 | if (0 >= iLenDate) |
| 308 | { |
| 309 | TimeExitWithLastError(hr, "Failed to get date format with NULL"); |
| 310 | } |
| 311 | |
| 312 | iLenTime = ::GetTimeFormatW(locale, 0, pst, TIME_FORMAT, NULL, 0); |
| 313 | if (0 >= iLenTime) |
| 314 | { |
| 315 | TimeExitWithLastError(hr, "Failed to get time format with NULL"); |
| 316 | } |
| 317 | |
| 318 | // Between both lengths we account for 2 null terminators, and only need one, so we subtract one |
| 319 | hr = StrAlloc(ppwz, iLenDate + iLenTime - 1); |
| 320 | TimeExitOnFailure(hr, "Failed to allocate string"); |
| 321 | |
| 322 | if (!::GetDateFormatW(locale, 0, pst, DATE_FORMAT, *ppwz, iLenDate)) |
| 323 | { |
| 324 | TimeExitWithLastError(hr, "Failed to get date format with buffer"); |
| 325 | } |
| 326 | // Space to separate them |
| 327 | (*ppwz)[iLenDate - 1] = ' '; |
| 328 | |
| 329 | if (!::GetTimeFormatW(locale, 0, pst, TIME_FORMAT, (*ppwz) + iLenDate - 1, iLenTime)) |
| 330 | { |
| 331 | TimeExitWithLastError(hr, "Failed to get time format with buffer"); |
| 332 | } |
| 333 | |
| 334 | LExit: |
| 335 | return hr; |
| 336 | } |
| 337 | |
| 338 | /******************************************************************** |
| 339 | DayFromString - converts string to day |
| 340 | |
| 341 | *******************************************************************/ |
| 342 | static HRESULT DayFromString( |
| 343 | __in_z LPCWSTR wzDay, |
| 344 | __out WORD* pwDayOfWeek |
| 345 | ) |
| 346 | { |
| 347 | HRESULT hr = E_INVALIDARG; // assume we won't find a matching name |
| 348 | |
| 349 | for (WORD i = 0; i < countof(DAY_OF_WEEK); ++i) |
| 350 | { |
| 351 | if (0 == lstrcmpW(wzDay, DAY_OF_WEEK[i])) |
| 352 | { |
| 353 | *pwDayOfWeek = i; |
| 354 | hr = S_OK; |
| 355 | break; |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | return hr; |
| 360 | } |
| 361 | |
| 362 | |
| 363 | /******************************************************************** |
| 364 | MonthFromString - converts string to month |
| 365 | |
| 366 | *******************************************************************/ |
| 367 | static HRESULT MonthFromString( |
| 368 | __in_z LPCWSTR wzMonth, |
| 369 | __out WORD* pwMonthOfYear |
| 370 | ) |
| 371 | { |
| 372 | HRESULT hr = E_INVALIDARG; // assume we won't find a matching name |
| 373 | |
| 374 | for (WORD i = 0; i < countof(MONTH_OF_YEAR); ++i) |
| 375 | { |
| 376 | if (0 == lstrcmpW(wzMonth, MONTH_OF_YEAR[i])) |
| 377 | { |
| 378 | *pwMonthOfYear = i; |
| 379 | hr = S_OK; |
| 380 | break; |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | return hr; |
| 385 | } |