protected override void ProcessRecord()
{
// make sure we've got fresh data, in case the requested time zone was added
// to the system (registry) after our process was started
TimeZoneInfo.ClearCachedData();
// acquire a TimeZoneInfo if one wasn't supplied.
if (this.ParameterSetName.Equals("Id", StringComparison.OrdinalIgnoreCase))
{
try
{
InputObject = TimeZoneInfo.FindSystemTimeZoneById(Id);
}
catch (TimeZoneNotFoundException e)
{
ThrowTerminatingError(new ErrorRecord(
e,
TimeZoneHelper.TimeZoneNotFoundError,
ErrorCategory.InvalidArgument,
"Id"));
}
}
else if (this.ParameterSetName.Equals("Name", StringComparison.OrdinalIgnoreCase))
{
// lookup the time zone name and make sure we have one (and only one) match
TimeZoneInfo[] timeZones = TimeZoneHelper.LookupSystemTimeZoneInfoByName(Name);
if (0 == timeZones.Length)
{
string message = string.Format(CultureInfo.InvariantCulture,
TimeZoneResources.TimeZoneNameNotFound, Name);
Exception e = new TimeZoneNotFoundException(message);
ThrowTerminatingError(new ErrorRecord(e,
TimeZoneHelper.TimeZoneNotFoundError,
ErrorCategory.InvalidArgument,
"Name"));
}
else if (1 < timeZones.Length)
{
string message = string.Format(CultureInfo.InvariantCulture,
TimeZoneResources.MultipleMatchingTimeZones, Name);
ThrowTerminatingError(new ErrorRecord(
new PSArgumentException(message, "Name"),
TimeZoneHelper.MultipleMatchingTimeZonesError,
ErrorCategory.InvalidArgument,
"Name"));
}
else
{
InputObject = timeZones[0];
}
}
else // ParameterSetName == "InputObject"
{
try
{
// a TimeZoneInfo object was supplied, so use it to make sure we can find
// a backing system time zone, otherwise it's an error condition
InputObject = TimeZoneInfo.FindSystemTimeZoneById(InputObject.Id);
}
catch (TimeZoneNotFoundException e)
{
ThrowTerminatingError(new ErrorRecord(
e,
TimeZoneHelper.TimeZoneNotFoundError,
ErrorCategory.InvalidArgument,
"InputObject"));
}
}
if (ShouldProcess(TimeZoneTarget))
{
bool acquireAccess = false;
try
{
// check to see if permission to set the time zone is already enabled for this process
if (!HasAccess)
{
// acquire permissions to set the timezone
SetAccessToken(true);
acquireAccess = true;
}
}
catch (Win32Exception e)
{
ThrowTerminatingError(new ErrorRecord(e,
TimeZoneHelper.InsufficientPermissionsError,
ErrorCategory.PermissionDenied, null));
}
try
{
// construct and populate a new DYNAMIC_TIME_ZONE_INFORMATION structure
NativeMethods.DYNAMIC_TIME_ZONE_INFORMATION dtzi = new NativeMethods.DYNAMIC_TIME_ZONE_INFORMATION();
dtzi.Bias -= (int)InputObject.BaseUtcOffset.TotalMinutes;
dtzi.StandardName = InputObject.StandardName;
dtzi.DaylightName = InputObject.DaylightName;
dtzi.TimeZoneKeyName = InputObject.Id;
// Request time zone transition information for the current year
NativeMethods.TIME_ZONE_INFORMATION tzi = new NativeMethods.TIME_ZONE_INFORMATION();
if (!NativeMethods.GetTimeZoneInformationForYear((ushort)DateTime.Now.Year, ref dtzi, ref tzi))
{
ThrowWin32Error();
}
// copy over the transition times
dtzi.StandardBias = tzi.StandardBias;
dtzi.StandardDate = tzi.StandardDate;
dtzi.DaylightBias = tzi.DaylightBias;
dtzi.DaylightDate = tzi.DaylightDate;
// set the new local time zone for the system
if (!NativeMethods.SetDynamicTimeZoneInformation(ref dtzi))
{
ThrowWin32Error();
}
// broadcast a WM_SETTINGCHANGE notification message to all top-level windows so that they
// know to update their notion of the current system time (and time zone) if applicable
int result = 0;
NativeMethods.SendMessageTimeout((IntPtr)NativeMethods.HWND_BROADCAST, NativeMethods.WM_SETTINGCHANGE,
(IntPtr)0, "intl", NativeMethods.SMTO_ABORTIFHUNG, 5000, ref result);
// clear the time zone data or this PowerShell session
// will not recognize the new time zone settings
TimeZoneInfo.ClearCachedData();
if (PassThru.IsPresent)
{
// return the TimeZoneInfo object for the (new) current local time zone
WriteObject(TimeZoneInfo.Local);
}
}
catch (Win32Exception e)
{
ThrowTerminatingError(new ErrorRecord(e,
TimeZoneHelper.SetTimeZoneFailedError,
ErrorCategory.FromStdErr, null));
}
finally
{
if (acquireAccess)
{
// reset the permissions
SetAccessToken(false);
}
}
}
else
{
if (PassThru.IsPresent)
{
// show the user the time zone settings that would have been used.
WriteObject(InputObject);
}
}
}
protected override void ProcessRecord()
{
// make sure we've got fresh data, in case the requested time zone was added
// to the system (registry) after our process was started
TimeZoneHelper.ClearCachedData();
// acquire a TimeZoneInfo if one wasn't supplied.
if (this.ParameterSetName.Equals("Id", StringComparison.OrdinalIgnoreCase))
{
try
{
InputObject = TimeZoneInfo.FindSystemTimeZoneById(Id);
}
#if CORECLR
// TimeZoneNotFoundException is thrown by TimeZoneInfo, but not
// publicly visible (so can't be caught), so for now we're catching
// the parent exception time. This should be removed once the more
// specific exception is available.
catch (Exception e)
#else
catch (TimeZoneNotFoundException e)
#endif
{
ThrowTerminatingError(new ErrorRecord(
e,
TimeZoneHelper.TimeZoneNotFoundError,
ErrorCategory.InvalidArgument,
"Id"));
}
}
else if (this.ParameterSetName.Equals("Name", StringComparison.OrdinalIgnoreCase))
{
// lookup the time zone name and make sure we have one (and only one) match
TimeZoneInfo[] timeZones = TimeZoneHelper.LookupSystemTimeZoneInfoByName(Name);
if (0 == timeZones.Length)
{
string message = string.Format(CultureInfo.InvariantCulture,
TimeZoneResources.TimeZoneNameNotFound, Name);
#if CORECLR
// Because .NET Core does not currently expose the TimeZoneNotFoundException
// we need to throw the more generic parent exception class for the time being.
// This should be removed once the correct exception class is available.
Exception e = new Exception(message);
#else
Exception e = new TimeZoneNotFoundException(message);
#endif
ThrowTerminatingError(new ErrorRecord(e,
TimeZoneHelper.TimeZoneNotFoundError,
ErrorCategory.InvalidArgument,
"Name"));
}
else if (1 < timeZones.Length)
{
string message = string.Format(CultureInfo.InvariantCulture,
TimeZoneResources.MultipleMatchingTimeZones, Name);
ThrowTerminatingError(new ErrorRecord(
new PSArgumentException(message, "Name"),
TimeZoneHelper.MultipleMatchingTimeZonesError,
ErrorCategory.InvalidArgument,
"Name"));
}
else
{
InputObject = timeZones[0];
}
}
else // ParameterSetName == "InputObject"
{
try
{
// a TimeZoneInfo object was supplied, so use it to make sure we can find
// a backing system time zone, otherwise it's an error condition
InputObject = TimeZoneInfo.FindSystemTimeZoneById(InputObject.Id);
}
#if CORECLR
// TimeZoneNotFoundException is thrown by TimeZoneInfo, but not
// publicly visible (so can't be caught), so for now we're catching
// the parent exception time. This should be removed once the more
// specific exception is available.
catch (Exception e)
#else
catch (TimeZoneNotFoundException e)
#endif
{
ThrowTerminatingError(new ErrorRecord(
e,
TimeZoneHelper.TimeZoneNotFoundError,
ErrorCategory.InvalidArgument,
"InputObject"));
}
}
if (ShouldProcess(TimeZoneTarget))
{
bool acquireAccess = false;
try
{
// check to see if permission to set the time zone is already enabled for this process
if (!HasAccess)
{
// acquire permissions to set the timezone
SetAccessToken(true);
acquireAccess = true;
}
}
catch (Win32Exception e)
{
ThrowTerminatingError(new ErrorRecord(e,
TimeZoneHelper.InsufficientPermissionsError,
ErrorCategory.PermissionDenied, null));
}
try
{
// construct and populate a new DYNAMIC_TIME_ZONE_INFORMATION structure
NativeMethods.DYNAMIC_TIME_ZONE_INFORMATION dtzi = new NativeMethods.DYNAMIC_TIME_ZONE_INFORMATION();
dtzi.Bias -= (int)InputObject.BaseUtcOffset.TotalMinutes;
dtzi.StandardName = InputObject.StandardName;
dtzi.DaylightName = InputObject.DaylightName;
dtzi.TimeZoneKeyName = InputObject.Id;
// Request time zone transition information for the current year
NativeMethods.TIME_ZONE_INFORMATION tzi = new NativeMethods.TIME_ZONE_INFORMATION();
if (!NativeMethods.GetTimeZoneInformationForYear((ushort)DateTime.Now.Year, ref dtzi, ref tzi))
{
ThrowWin32Error();
}
// copy over the transition times
dtzi.StandardBias = tzi.StandardBias;
dtzi.StandardDate = tzi.StandardDate;
dtzi.DaylightBias = tzi.DaylightBias;
dtzi.DaylightDate = tzi.DaylightDate;
// set the new local time zone for the system
if (!NativeMethods.SetDynamicTimeZoneInformation(ref dtzi))
{
ThrowWin32Error();
}
#if !CORECLR
// broadcast a WM_SETTINGCHANGE notification message to all top-level windows so that they
// know to update their notion of the current system time (and time zone) if applicable
int result = 0;
NativeMethods.SendMessageTimeout((IntPtr)NativeMethods.HWND_BROADCAST, NativeMethods.WM_SETTINGCHANGE,
(IntPtr)0, "intl", NativeMethods.SMTO_ABORTIFHUNG, 5000, ref result);
#endif
// clear the time zone data or this PowerShell session
// will not recognize the new time zone settings
TimeZoneHelper.ClearCachedData();
if (PassThru.IsPresent)
{
// return the TimeZoneInfo object for the (new) current local time zone
WriteObject(TimeZoneInfo.Local);
}
}
catch (Win32Exception e)
{
ThrowTerminatingError(new ErrorRecord(e,
TimeZoneHelper.SetTimeZoneFailedError,
ErrorCategory.FromStdErr, null));
}
finally
{
if (acquireAccess)
{
// reset the permissions
SetAccessToken(false);
}
}
}
else
{
if (PassThru.IsPresent)
{
// show the user the time zone settings that would have been used.
WriteObject(InputObject);
}
}
}