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   1 # A global variable that contains localized messages.
   2 data LocalizedData
   3 {
   4 # culture="en-US"
   5 ConvertFrom-StringData @'
   6 UserWithName=User: {0}
   7 RemoveOperation=Remove
   8 AddOperation=Add
   9 SetOperation=Set
  10 ConfigurationStarted=Configuration of user {0} started.
  11 ConfigurationCompleted=Configuration of user {0} completed successfully.
  12 UserCreated=User {0} created successfully.
  13 UserUpdated=User {0} properties updated successfully.
  14 UserRemoved=User {0} removed successfully.
  15 NoConfigurationRequired=User {0} exists on this node with the desired properties. No action required.
  16 NoConfigurationRequiredUserDoesNotExist=User {0} does not exist on this node. No action required.
  17 InvalidUserName=The name {0} cannot be used. Names may not consist entirely of periods and/or spaces, or contain these characters: {1}
  18 UserExists=A user with the name {0} exists.
  19 UserDoesNotExist=A user with the name {0} does not exist.
  20 PropertyMismatch=The value of the {0} property is expected to be {1} but it is {2}.
  21 PasswordPropertyMismatch=The value of the {0} property does not match.
  22 AllUserPropertisMatch=All {0} {1} properties match.
  23 ConnectionError = There could be a possible connection error while trying to use the System.DirectoryServices API's.
  24 MultipleMatches = There could be a possible multiple matches exception while trying to use the System.DirectoryServices API's.
  25 '@
  26 }
  27
  28 Import-LocalizedData LocalizedData -FileName MSFT_UserResource.strings.psd1
  29
  30 Import-Module "$PSScriptRoot\..\DSCResourceHelper.psm1"
  31
  32 if (-not (IsNanoServer))
  33 {
  34     Add-Type -AssemblyName 'System.DirectoryServices.AccountManagement'
  35 }
  36
  37 <#
  38 .Synopsys
  39 The Get-TargetResource cmdlet.
  40 #>
  41 function Get-TargetResource
  42 {
  43     param
  44     (
  45         [parameter(Mandatory = $true)]
  46         [ValidateNotNullOrEmpty()]
  47         [System.String]
  48         $UserName
  49     )
  50
  51     if (IsNanoServer)
  52     {
  53         Get-TargetResourceOnNanoServer @PSBoundParameters
  54     }
  55     else
  56     {
  57         Get-TargetResourceOnFullSKU @PSBoundParameters
  58     }
  59 }
  60
  61 <#
  62 .Synopsys
  63 The Set-TargetResource cmdlet.
  64 #>
  65 function Set-TargetResource
  66 {
  67     [CmdletBInding(SupportsShouldProcess=$true)]
  68     param
  69     (
  70         [parameter(Mandatory = $true)]
  71         [ValidateNotNullOrEmpty()]
  72         [System.String]
  73         $UserName,
  74
  75         [ValidateSet("Present", "Absent")]
  76         [System.String]
  77         $Ensure = "Present",
  78
  79         [System.String]
  80         $FullName,
  81
  82         [System.String]
  83         $Description,
  84
  85         [ValidateNotNullOrEmpty()]
  86         [System.Management.Automation.PSCredential]
  87         $Password,
  88
  89         [System.Boolean]
  90         $Disabled,
  91
  92         [System.Boolean]
  93         $PasswordNeverExpires,
  94
  95         [System.Boolean]
  96         $PasswordChangeRequired,
  97
  98         [System.Boolean]
  99         $PasswordChangeNotAllowed
 100     )
 101
 102     if (IsNanoServer)
 103     {
 104         Set-TargetResourceOnNanoServer @PSBoundParameters
 105     }
 106     else
 107     {
 108         Set-TargetResourceOnFullSKU @PSBoundParameters
 109     }
 110 }
 111
 112 <#
 113 .Synopsys
 114 The Test-TargetResource cmdlet is used to validate if the resource is in a state as expected in the instance document.
 115 #>
 116 function Test-TargetResource
 117 {
 118     param
 119     (
 120         [parameter(Mandatory = $true)]
 121         [ValidateNotNullOrEmpty()]
 122         [System.String]
 123         $UserName,
 124
 125         [ValidateSet("Present", "Absent")]
 126         [System.String]
 127         $Ensure = "Present",
 128
 129         [System.String]
 130         $FullName,
 131
 132         [System.String]
 133         $Description,
 134
 135         [ValidateNotNullOrEmpty()]
 136         [System.Management.Automation.PSCredential]
 137         $Password,
 138
 139         [System.Boolean]
 140         $Disabled,
 141
 142         [System.Boolean]
 143         $PasswordNeverExpires,
 144
 145         [System.Boolean]
 146         $PasswordChangeRequired,
 147
 148         [System.Boolean]
 149         $PasswordChangeNotAllowed
 150     )
 151
 152     if (IsNanoServer)
 153     {
 154         Test-TargetResourceOnNanoServer @PSBoundParameters
 155     }
 156     else
 157     {
 158         Test-TargetResourceOnFullSKU @PSBoundParameters
 159     }
 160 }
 161
 162
 163 <#
 164 .Synopsys
 165 The Get-TargetResource cmdlet.
 166 #>
 167 function Get-TargetResourceOnFullSKU
 168 {
 169     param
 170     (
 171         [parameter(Mandatory = $true)]
 172         [ValidateNotNullOrEmpty()]
 173         [System.String]
 174         $UserName
 175     )
 176
 177     Set-StrictMode -Version Latest
 178
 179     ValidateUserName -UserName $UserName
 180
 181     # Try to find a user by a name.
 182     $principalContext = New-Object System.DirectoryServices.AccountManagement.PrincipalContext -ArgumentList ([System.DirectoryServices.AccountManagement.ContextType]::Machine)
 183
 184     try
 185     {
 186         $user = [System.DirectoryServices.AccountManagement.UserPrincipal]::FindByIdentity($principalContext, $UserName);
 187         if($user -ne $null)
 188         {
 189             # The user is found. Return all user properties and Ensure="Present".
 190             $returnValue = @{
 191                                 UserName = $user.Name;
 192                                 Ensure = "Present";
 193                                 FullName = $user.DisplayName;
 194                                 Description = $user.Description;
 195                                 Disabled = -not $user.Enabled;
 196                                 PasswordNeverExpires = $user.PasswordNeverExpires;
 197                                 PasswordChangeRequired = $null;
 198                                 PasswordChangeNotAllowed = $user.UserCannotChangePassword;
 199                             }
 200
 201             return $returnValue;
 202         }
 203
 204         # The user is not found. Return Ensure=Absent.
 205         return @{
 206                     UserName = $UserName;
 207                     Ensure = "Absent";
 208                 }
 209     }
 210     catch
 211     {
 212          ThrowExceptionDueToDirectoryServicesError -ErrorId "MultipleMatches" -ErrorMessage ($LocalizedData.MultipleMatches + $_)
 213     }
 214     finally
 215     {
 216         if($user -ne $null)
 217         {
 218             $user.Dispose();
 219         }
 220
 221         $principalContext.Dispose();
 222     }
 223 }
 224
 225 <#
 226 .Synopsys
 227 The Set-TargetResource cmdlet.
 228 #>
 229 function Set-TargetResourceOnFullSKU
 230 {
 231     [CmdletBInding(SupportsShouldProcess=$true)]
 232     param
 233     (
 234         [parameter(Mandatory = $true)]
 235         [ValidateNotNullOrEmpty()]
 236         [System.String]
 237         $UserName,
 238
 239         [ValidateSet("Present", "Absent")]
 240         [System.String]
 241         $Ensure = "Present",
 242
 243         [System.String]
 244         $FullName,
 245
 246         [System.String]
 247         $Description,
 248
 249         [ValidateNotNullOrEmpty()]
 250         [System.Management.Automation.PSCredential]
 251         $Password,
 252
 253         [System.Boolean]
 254         $Disabled,
 255
 256         [System.Boolean]
 257         $PasswordNeverExpires,
 258
 259         [System.Boolean]
 260         $PasswordChangeRequired,
 261
 262         [System.Boolean]
 263         $PasswordChangeNotAllowed
 264     )
 265
 266     Set-StrictMode -Version Latest
 267
 268     Write-Verbose -Message ($LocalizedData.ConfigurationStarted -f $UserName)
 269
 270     ValidateUserName -UserName $UserName
 271
 272
 273     # Try to find a user by a name.
 274     $principalContext = New-Object System.DirectoryServices.AccountManagement.PrincipalContext -ArgumentList ([System.DirectoryServices.AccountManagement.ContextType]::Machine)
 275
 276     try
 277     {
 278         $user = [System.DirectoryServices.AccountManagement.UserPrincipal]::FindByIdentity($principalContext, $UserName);
 279         if($Ensure -eq "Present")
 280         {
 281             # Ensure is set to "Present".
 282
 283             $whatIfShouldProcess = $true;
 284             $userExists = $false;
 285             $saveChanges = $false;
 286
 287             if($user -eq $null)
 288             {
 289                 # A user does not exist. Check WhatIf for adding a user.
 290                 $whatIfShouldProcess = $pscmdlet.ShouldProcess($LocalizedData.UserWithName -f $UserName, $LocalizedData.AddOperation);
 291             }
 292             else
 293             {
 294                 # A user exists.
 295                 $userExists = $true;
 296
 297                 # Check WhatIf for setting a user.
 298                 $whatIfShouldProcess = $pscmdlet.ShouldProcess($LocalizedData.UserWithName -f $UserName, $LocalizedData.SetOperation);
 299             }
 300
 301             if($whatIfShouldProcess)
 302             {
 303                 if(-not $userExists)
 304                 {
 305                     # The user with the provided name does not exist. Add a new user.
 306                     $user = New-Object System.DirectoryServices.AccountManagement.UserPrincipal -ArgumentList $principalContext
 307                     $user.Name = $UserName;
 308                     $saveChanges = $true;
 309                 }
 310
 311                 # Set user properties.
 312                 if($PSBoundParameters.ContainsKey('FullName') -and (-not $userExists -or $FullName -ne $user.DisplayName))
 313                 {
 314                     $user.DisplayName = $FullName;
 315                     $saveChanges = $true;
 316                 }
 317                 else
 318                 {
 319                     if(-not $userExists)
 320                     {
 321                         # For a newly created user, set the DisplayName property to an empty string. By default DisplayName is set to user's name.
 322                         $user.DisplayName = [String]::Empty;
 323                     }
 324                 }
 325
 326                 if($PSBoundParameters.ContainsKey('Description') -and (-not $userExists -or $Description -ne $user.Description))
 327                 {
 328                     $user.Description = $Description;
 329                     $saveChanges = $true;
 330                 }
 331
 332                 # Password. Set the password regardless of the state of the user.
 333                 if($PSBoundParameters.ContainsKey('Password'))
 334                 {
 335                     $user.SetPassword($Password.GetNetworkCredential().Password);
 336                     $saveChanges = $true;
 337                 }
 338
 339                 if($PSBoundParameters.ContainsKey('Disabled') -and (-not $userExists -or $Disabled -eq $user.Enabled))
 340                 {
 341                     $user.Enabled = -not $Disabled;
 342                     $saveChanges = $true;
 343                 }
 344
 345                 if($PSBoundParameters.ContainsKey('PasswordNeverExpires') -and (-not $userExists -or $PasswordNeverExpires -ne $user.PasswordNeverExpires))
 346                 {
 347                     $user.PasswordNeverExpires = $PasswordNeverExpires;
 348                     $saveChanges = $true;
 349                 }
 350
 351                 if($PSBoundParameters.ContainsKey('PasswordChangeRequired'))
 352                 {
 353                     if($PasswordChangeRequired)
 354                     {
 355                         # Expire the password. This will force the user to change the password at the next logon.
 356                         $user.ExpirePasswordNow();
 357                         $saveChanges = $true;
 358                     }
 359                 }
 360
 361                 if($PSBoundParameters.ContainsKey('PasswordChangeNotAllowed') -and (-not $userExists -or $PasswordChangeNotAllowed -ne $user.UserCannotChangePassword))
 362                 {
 363                     $user.UserCannotChangePassword = $PasswordChangeNotAllowed;
 364                     $saveChanges = $true;
 365
 366                 }
 367
 368                 if($saveChanges)
 369                 {
 370                     $user.Save();
 371
 372                     # Send an operation success verbose message.
 373                     if($userExists)
 374                     {
 375                         Write-Verbose -Message ($LocalizedData.UserUpdated -f $UserName)
 376                     }
 377                     else
 378                     {
 379                         Write-Verbose -Message ($LocalizedData.UserCreated -f $UserName)
 380                     }
 381                 }
 382                 else
 383                 {
 384                     Write-Verbose -Message ($LocalizedData.NoConfigurationRequired -f $UserName)
 385                 }
 386             }
 387         }
 388         else
 389         {
 390             # Ensure is set to "Absent".
 391             if($user -ne $null)
 392             {
 393                 # The user exists.
 394                 if($pscmdlet.ShouldProcess($LocalizedData.UserWithName -f $UserName, $LocalizedData.RemoveOperation))
 395                 {
 396                     # Remove the user by the provided name.
 397                     $user.Delete();
 398                 }
 399
 400                 Write-Verbose -Message ($LocalizedData.UserRemoved -f $UserName)
 401             }
 402             else
 403             {
 404                 Write-Verbose -Message ($LocalizedData.NoConfigurationRequiredUserDoesNotExist -f $UserName)
 405             }
 406         }
 407     }
 408     catch
 409     {
 410          ThrowExceptionDueToDirectoryServicesError -ErrorId "MultipleMatches" -ErrorMessage ($LocalizedData.MultipleMatches + $_)
 411     }
 412     finally
 413     {
 414         if($user -ne $null)
 415         {
 416             $user.Dispose();
 417         }
 418
 419         $principalContext.Dispose();
 420     }
 421
 422     Write-Verbose -Message ($LocalizedData.ConfigurationCompleted -f $UserName)
 423 }
 424
 425 <#
 426 .Synopsys
 427 The Test-TargetResource cmdlet is used to validate if the resource is in a state as expected in the instance document.
 428 #>
 429 function Test-TargetResourceOnFullSKU
 430 {
 431     param
 432     (
 433         [parameter(Mandatory = $true)]
 434         [ValidateNotNullOrEmpty()]
 435         [System.String]
 436         $UserName,
 437
 438         [ValidateSet("Present", "Absent")]
 439         [System.String]
 440         $Ensure = "Present",
 441
 442         [System.String]
 443         $FullName,
 444
 445         [System.String]
 446         $Description,
 447
 448         [ValidateNotNullOrEmpty()]
 449         [System.Management.Automation.PSCredential]
 450         $Password,
 451
 452         [System.Boolean]
 453         $Disabled,
 454
 455         [System.Boolean]
 456         $PasswordNeverExpires,
 457
 458         [System.Boolean]
 459         $PasswordChangeRequired,
 460
 461         [System.Boolean]
 462         $PasswordChangeNotAllowed
 463     )
 464
 465     Set-StrictMode -Version Latest
 466
 467     ValidateUserName -UserName $UserName
 468
 469     # Try to find a user by a name.
 470     $principalContext = New-Object System.DirectoryServices.AccountManagement.PrincipalContext -ArgumentList ([System.DirectoryServices.AccountManagement.ContextType]::Machine)
 471
 472     try
 473     {
 474         $user = [System.DirectoryServices.AccountManagement.UserPrincipal]::FindByIdentity($principalContext, $UserName);
 475         if($user -eq $null)
 476         {
 477             # A user with the provided name does not exist.
 478             Write-Log -Message ($LocalizedData.UserDoesNotExist -f $UserName)
 479
 480             if($Ensure -eq "Absent")
 481             {
 482                 return $true;
 483             }
 484             else
 485             {
 486                 return $false;
 487             }
 488         }
 489
 490         # A user with the provided name exists.
 491         Write-Log -Message ($LocalizedData.UserExists -f $UserName)
 492
 493         # Validate separate properties.
 494         if($Ensure -eq "Absent")
 495         {
 496             Write-Log -Message ($LocalizedData.PropertyMismatch -f "Ensure", "Absent", "Present")
 497             return $false; # The Ensure property does not match. Return $false;
 498         }
 499
 500         if($PSBoundParameters.ContainsKey('FullName') -and $FullName -ne $user.DisplayName)
 501         {
 502             Write-Log -Message ($LocalizedData.PropertyMismatch -f "FullName", $FullName, $user.DisplayName)
 503             return $false; # The FullName property does not match. Return $false;
 504         }
 505
 506         if($PSBoundParameters.ContainsKey('Description') -and $Description -ne $user.Description)
 507         {
 508             Write-Log -Message ($LocalizedData.PropertyMismatch -f "Description", $Description, $user.Description)
 509             return $false; # The Description property does not match. Return $false;
 510         }
 511
 512         # Password
 513         if($PSBoundParameters.ContainsKey('Password'))
 514         {
 515             if(-not $principalContext.ValidateCredentials($UserName, $Password.GetNetworkCredential().Password))
 516             {
 517                 Write-Log -Message ($LocalizedData.PasswordPropertyMismatch -f "Password")
 518                 return $false; # The Password property does not match. Return $false;
 519             }
 520         }
 521
 522         if($PSBoundParameters.ContainsKey('Disabled') -and $Disabled -eq $user.Enabled)
 523         {
 524             Write-Log -Message ($LocalizedData.PropertyMismatch -f "Disabled", $Disabled, $user.Enabled)
 525             return $false; # The Disabled property does not match. Return $false;
 526         }
 527
 528         if($PSBoundParameters.ContainsKey('PasswordNeverExpires') -and $PasswordNeverExpires -ne $user.PasswordNeverExpires)
 529         {
 530             Write-Log -Message ($LocalizedData.PropertyMismatch -f "PasswordNeverExpires", $PasswordNeverExpires, $user.PasswordNeverExpires)
 531             return $false; # The PasswordNeverExpires property does not match. Return $false;
 532         }
 533
 534         if($PSBoundParameters.ContainsKey('PasswordChangeNotAllowed') -and $PasswordChangeNotAllowed -ne $user.UserCannotChangePassword)
 535         {
 536             Write-Log -Message ($LocalizedData.PropertyMismatch -f "PasswordChangeNotAllowed", $PasswordChangeNotAllowed, $user.UserCannotChangePassword)
 537             return $false; # The PasswordChangeNotAllowed property does not match. Return $false;
 538         }
 539     }
 540     catch
 541     {
 542          ThrowExceptionDueToDirectoryServicesError -ErrorId "ConnectionError" -ErrorMessage ($LocalizedData.ConnectionError + $_)
 543     }
 544
 545     finally
 546     {
 547         if($user -ne $null)
 548         {
 549             $user.Dispose();
 550         }
 551
 552         $principalContext.Dispose();
 553
 554     }
 555
 556     # All properties match. Return $true.
 557     Write-Log -Message ($LocalizedData.AllUserPropertisMatch -f "User", $UserName)
 558     return $true;
 559 }
 560
 561
 562 <#
 563 .Synopsys
 564 The Get-TargetResource cmdlet.
 565 #>
 566 function Get-TargetResourceOnNanoServer
 567 {
 568     param
 569     (
 570         [parameter(Mandatory = $true)]
 571         [ValidateNotNullOrEmpty()]
 572         [System.String]
 573         $UserName
 574     )
 575
 576     Set-StrictMode -Version Latest
 577
 578     ValidateUserName -UserName $UserName
 579
 580     # Try to find a user by a name.
 581     try
 582     {
 583         [Microsoft.PowerShell.Commands.LocalUser] $user = Get-LocalUser -Name $UserName -ErrorAction Stop
 584     }
 585     catch [System.Exception]
 586     {
 587         if ($_.CategoryInfo.ToString().Contains('UserNotFoundException'))
 588         {
 589             # The user is not found. Return Ensure=Absent.
 590             return @{
 591                         UserName = $UserName;
 592                         Ensure = "Absent";
 593                     }
 594         }
 595         Throw-TerminatingError -ErrorRecord $_
 596     }
 597
 598     # The user is found. Return all user properties and Ensure="Present".
 599     $returnValue = @{
 600                         UserName = $user.Name;
 601                         Ensure = "Present";
 602                         FullName = $user.FullName;
 603                         Description = $user.Description;
 604                         Disabled = -not $user.Enabled;
 605                         PasswordChangeRequired = $null;
 606                         PasswordChangeNotAllowed = -not $user.UserMayChangePassword;
 607                     }
 608
 609     if ($user.PasswordExpires)
 610     {
 611         $returnValue.Add('PasswordNeverExpires', $false)
 612     }
 613     else
 614     {
 615         $returnValue.Add('PasswordNeverExpires', $true)
 616     }
 617
 618     return $returnValue;
 619 }
 620
 621 <#
 622 .Synopsys
 623 The Set-TargetResource cmdlet.
 624 #>
 625 function Set-TargetResourceOnNanoServer
 626 {
 627     [CmdletBInding(SupportsShouldProcess=$true)]
 628     param
 629     (
 630         [parameter(Mandatory = $true)]
 631         [ValidateNotNullOrEmpty()]
 632         [System.String]
 633         $UserName,
 634
 635         [ValidateSet("Present", "Absent")]
 636         [System.String]
 637         $Ensure = "Present",
 638
 639         [System.String]
 640         $FullName,
 641
 642         [System.String]
 643         $Description,
 644
 645         [ValidateNotNullOrEmpty()]
 646         [System.Management.Automation.PSCredential]
 647         $Password,
 648
 649         [System.Boolean]
 650         $Disabled,
 651
 652         [System.Boolean]
 653         $PasswordNeverExpires,
 654
 655         [System.Boolean]
 656         $PasswordChangeRequired,
 657
 658         [System.Boolean]
 659         $PasswordChangeNotAllowed
 660     )
 661
 662     Set-StrictMode -Version Latest
 663
 664     Write-Verbose -Message ($LocalizedData.ConfigurationStarted -f $UserName)
 665
 666     ValidateUserName -UserName $UserName
 667
 668     ## Try to find a user by a name.
 669     [bool] $userExists = $false
 670     try
 671     {
 672         [Microsoft.PowerShell.Commands.LocalUser] $user = Get-LocalUser -Name $UserName -ErrorAction Stop
 673         $userExists = $true;
 674     }
 675     catch [System.Exception]
 676     {
 677         if ($_.CategoryInfo.ToString().Contains('UserNotFoundException'))
 678         {
 679             # The user is not found.
 680             Write-Log -Message ($LocalizedData.UserDoesNotExist -f $UserName)
 681         }
 682         else
 683         {
 684             Throw-TerminatingError -ErrorRecord $_
 685         }
 686     }
 687
 688     if($Ensure -eq "Present")
 689     {
 690         # Ensure is set to "Present".
 691
 692         if(-not $userExists)
 693         {
 694             # The user with the provided name does not exist. Add a new user.
 695             New-LocalUser -Name $UserName -NoPassword
 696             Write-Verbose -Message ($LocalizedData.UserCreated -f $UserName)
 697         }
 698
 699         # Set user properties.
 700         if($PSBoundParameters.ContainsKey('FullName'))
 701         {
 702             if (-not $userExists -or $FullName -ne $user.FullName)
 703             {
 704                 if ($FullName -eq $null)
 705                 {
 706                     Set-LocalUser -Name $UserName -FullName ([String]::Empty)
 707                 }
 708                 else
 709                 {
 710                     Set-LocalUser -Name $UserName -FullName $FullName
 711                 }
 712             }
 713         }
 714         else
 715         {
 716             if (-not $userExists)
 717             {
 718                 # For a newly created user, set the DisplayName property to an empty string. By default DisplayName is set to user's name.
 719                 Set-LocalUser -Name $UserName -FullName ([String]::Empty)
 720             }
 721         }
 722
 723         if($PSBoundParameters.ContainsKey('Description') -and (-not $userExists -or $Description -ne $user.Description))
 724         {
 725             if ($Description -eq $null)
 726             {
 727                 Set-LocalUser -Name $UserName -Description ([String]::Empty)
 728             }
 729             else
 730             {
 731                 Set-LocalUser -Name $UserName -Description $Description
 732             }
 733         }
 734
 735         # Password. Set the password regardless of the state of the user.
 736         if($PSBoundParameters.ContainsKey('Password'))
 737         {
 738             Set-LocalUser -Name $UserName -Password $Password.Password
 739         }
 740
 741         if($PSBoundParameters.ContainsKey('Disabled') -and (-not $userExists -or $Disabled -eq $user.Enabled))
 742         {
 743             if ($Disabled)
 744             {
 745                 Disable-LocalUser -Name $UserName
 746             }
 747             else
 748             {
 749                 Enable-LocalUser -Name $UserName
 750             }
 751         }
 752
 753         $existingUserPasswordNeverExpires = (($userExists) -and ($user.PasswordExpires -eq $null))
 754         if($PSBoundParameters.ContainsKey('PasswordNeverExpires') -and (-not $userExists -or ($PasswordNeverExpires -ne $existingUserPasswordNeverExpires)))
 755         {
 756             Set-LocalUser -Name $UserName -PasswordNeverExpires:$passwordNeverExpires
 757         }
 758
 759         # NOTE: The parameter name and the property name have opposite meaning.
 760         [bool] $expected = -not $PasswordChangeNotAllowed
 761         [bool] $actual = $expected
 762         if($userExists) {
 763             $actual = $user.UserMayChangePassword
 764         }
 765         if($PSBoundParameters.ContainsKey('PasswordChangeNotAllowed') -and (-not $userExists -or $expected -ne $actual))
 766         {
 767             Set-LocalUser -Name $UserName -UserMayChangePassword $expected
 768         }
 769     }
 770     else
 771     {
 772         # Ensure is set to "Absent".
 773         if($userExists)
 774         {
 775             # The user exists.
 776             Remove-LocalUser -Name $UserName
 777
 778             Write-Verbose -Message ($LocalizedData.UserRemoved -f $UserName)
 779         }
 780         else
 781         {
 782             Write-Verbose -Message ($LocalizedData.NoConfigurationRequiredUserDoesNotExist -f $UserName)
 783         }
 784     }
 785
 786
 787     Write-Verbose -Message ($LocalizedData.ConfigurationCompleted -f $UserName)
 788 }
 789
 790 <#
 791 .Synopsys
 792 The Test-TargetResource cmdlet is used to validate if the resource is in a state as expected in the instance document.
 793 #>
 794 function Test-TargetResourceOnNanoServer
 795 {
 796     param
 797     (
 798         [parameter(Mandatory = $true)]
 799         [ValidateNotNullOrEmpty()]
 800         [System.String]
 801         $UserName,
 802
 803         [ValidateSet("Present", "Absent")]
 804         [System.String]
 805         $Ensure = "Present",
 806
 807         [System.String]
 808         $FullName,
 809
 810         [System.String]
 811         $Description,
 812
 813         [ValidateNotNullOrEmpty()]
 814         [System.Management.Automation.PSCredential]
 815         $Password,
 816
 817         [System.Boolean]
 818         $Disabled,
 819
 820         [System.Boolean]
 821         $PasswordNeverExpires,
 822
 823         [System.Boolean]
 824         $PasswordChangeRequired,
 825
 826         [System.Boolean]
 827         $PasswordChangeNotAllowed
 828     )
 829
 830     Set-StrictMode -Version Latest
 831
 832     ValidateUserName -UserName $UserName
 833
 834     # Try to find a user by a name.
 835     try
 836     {
 837         [Microsoft.PowerShell.Commands.LocalUser] $user = Get-LocalUser -Name $UserName -ErrorAction Stop
 838     }
 839     catch [System.Exception]
 840     {
 841         if ($_.CategoryInfo.ToString().Contains('UserNotFoundException'))
 842         {
 843             # The user is not found. Return Ensure=Absent.
 844             if($Ensure -eq "Absent")
 845             {
 846                 return $true
 847             }
 848             else
 849             {
 850                 return $false
 851             }
 852         }
 853         Throw-TerminatingError -ErrorRecord $_
 854     }
 855
 856     # A user with the provided name exists.
 857     Write-Log -Message ($LocalizedData.UserExists -f $UserName)
 858
 859     # Validate separate properties.
 860     if($Ensure -eq "Absent")
 861     {
 862         Write-Log -Message ($LocalizedData.PropertyMismatch -f "Ensure", "Absent", "Present")
 863         return $false; # The Ensure property does not match. Return $false;
 864     }
 865
 866     if($PSBoundParameters.ContainsKey('FullName') -and $FullName -ne $user.FullName)
 867     {
 868         Write-Log -Message ($LocalizedData.PropertyMismatch -f "FullName", $FullName, $user.FullName)
 869         return $false; # The FullName property does not match. Return $false;
 870     }
 871
 872     if($PSBoundParameters.ContainsKey('Description') -and $Description -ne $user.Description)
 873     {
 874         Write-Log -Message ($LocalizedData.PropertyMismatch -f "Description", $Description, $user.Description)
 875         return $false; # The Description property does not match. Return $false;
 876     }
 877
 878     if($PSBoundParameters.ContainsKey('Password'))
 879     {
 880         if(-not (ValidateCredentialsOnNanoServer -UserName $UserName -Password $Password.Password))
 881         {
 882             Write-Log -Message ($LocalizedData.PasswordPropertyMismatch -f "Password")
 883             return $false; # The Password property does not match. Return $false;
 884         }
 885     }
 886
 887     if($PSBoundParameters.ContainsKey('Disabled') -and $Disabled -eq $user.Enabled)
 888     {
 889         Write-Log -Message ($LocalizedData.PropertyMismatch -f "Disabled", $Disabled, $user.Enabled)
 890         return $false; # The Disabled property does not match. Return $false;
 891     }
 892
 893     $existingUserPasswordNeverExpires = ($user.PasswordExpires -eq $null)
 894     if($PSBoundParameters.ContainsKey('PasswordNeverExpires') -and $PasswordNeverExpires -ne $existingUserPasswordNeverExpires)
 895     {
 896         Write-Log -Message ($LocalizedData.PropertyMismatch -f "PasswordNeverExpires", $PasswordNeverExpires, $existingUserPasswordNeverExpires)
 897         return $false; # The PasswordNeverExpires property does not match. Return $false;
 898     }
 899
 900     if($PSBoundParameters.ContainsKey('PasswordChangeNotAllowed') -and $PasswordChangeNotAllowed -ne (-not $user.UserMayChangePassword))
 901     {
 902         Write-Log -Message ($LocalizedData.PropertyMismatch -f "PasswordChangeNotAllowed", $PasswordChangeNotAllowed, (-not $user.UserMayChangePassword))
 903         return $false; # The PasswordChangeNotAllowed property does not match. Return $false;
 904     }
 905
 906     # All properties match. Return $true.
 907     Write-Log -Message ($LocalizedData.AllUserPropertisMatch -f "User", $UserName)
 908     return $true;
 909 }
 910
 911 <#
 912 .Synopsis
 913 Validates the User name for invalid charecters.
 914 #>
 915 function ValidateUserName
 916 {
 917     param
 918     (
 919         [parameter(Mandatory = $true)]
 920         [ValidateNotNullOrEmpty()]
 921         [System.String]
 922         $UserName
 923     )
 924
 925     # Check if the name consists of only periods and/or white spaces.
 926     $wrongName = $true;
 927     for($i = 0; $i -lt $UserName.Length; $i++)
 928     {
 929         if(-not [Char]::IsWhiteSpace($UserName, $i) -and $UserName[$i] -ne '.')
 930         {
 931             $wrongName = $false;
 932             break;
 933         }
 934     }
 935
 936     $invalidChars = @('\','/','"','[',']',':','|','<','>','+','=',';',',','?','*','@')
 937
 938     if($wrongName)
 939     {
 940         ThrowInvalidArgumentError -ErrorId "UserNameHasOnlyWhiteSpacesAndDots" -ErrorMessage ($LocalizedData.InvalidUserName -f $UserName, [string]::Join(" ", $invalidChars))
 941     }
 942
 943     if($UserName.IndexOfAny($invalidChars) -ne -1)
 944     {
 945         ThrowInvalidArgumentError -ErrorId "UserNameHasInvalidCharachter" -ErrorMessage ($LocalizedData.InvalidUserName -f $UserName, [string]::Join(" ", $invalidChars))
 946     }
 947 }
 948
 949 <#
 950 .Synopsis
 951 Throws an argument error.
 952 #>
 953 function ThrowInvalidArgumentError
 954 {
 955     [CmdletBinding()]
 956     param
 957     (
 958
 959         [parameter(Mandatory = $true)]
 960         [ValidateNotNullOrEmpty()]
 961         [System.String]
 962         $ErrorId,
 963
 964         [parameter(Mandatory = $true)]
 965         [ValidateNotNullOrEmpty()]
 966         [System.String]
 967         $ErrorMessage
 968     )
 969
 970     $errorCategory=[System.Management.Automation.ErrorCategory]::InvalidArgument
 971     $exception = New-Object System.ArgumentException $ErrorMessage;
 972     $errorRecord = New-Object System.Management.Automation.ErrorRecord $exception, $ErrorId, $errorCategory, $null
 973     throw $errorRecord
 974 }
 975
 976 function ThrowExceptionDueToDirectoryServicesError
 977 {
 978     [CmdletBinding()]
 979     param
 980     (
 981         [parameter(Mandatory = $true)]
 982         [ValidateNotNullOrEmpty()]
 983         [System.String]
 984         $ErrorId,
 985
 986         [parameter(Mandatory = $true)]
 987         [ValidateNotNullOrEmpty()]
 988         [System.String]
 989         $ErrorMessage
 990     )
 991
 992     $errorCategory = [System.Management.Automation.ErrorCategory]::ConnectionError
 993     $exception = New-Object System.ArgumentException $ErrorMessage
 994     $errorRecord = New-Object System.Management.Automation.ErrorRecord $exception, $ErrorId, $errorCategory, $null
 995     throw $errorRecord
 996 }
 997
 998 Function Throw-TerminatingError
 999 {
1000     param(
1001         [string] $Message,
1002         [System.Management.Automation.ErrorRecord] $ErrorRecord
1003     )
1004
1005
1006     if ($ErrorRecord -ne $null)
1007     {
1008         $exception = new-object "System.InvalidOperationException" $Message,$ErrorRecord.Exception
1009     }
1010     else
1011     {
1012         $exception = new-object "System.InvalidOperationException" $Message
1013     }
1014     $errorRecord = New-Object System.Management.Automation.ErrorRecord $exception,"MachineStateIncorrect","InvalidOperation",$null
1015     throw $errorRecord
1016 }
1017
1018 <#
1019 .Synopsis
1020 Writes either to Verbose or ShouldProcess channel.
1021 #>
1022 function Write-Log
1023 {
1024     [CmdletBinding(SupportsShouldProcess=$true)]
1025     param
1026     (
1027         [parameter(Mandatory = $true)]
1028         [ValidateNotNullOrEmpty()]
1029         [System.String]
1030         $Message
1031     )
1032
1033     if ($PSCmdlet.ShouldProcess($Message, $null, $null))
1034     {
1035         Write-Verbose $Message
1036     }
1037 }
1038
1039 <#
1040 .Synopsis
1041 Validates the local user's credentials on the local machine.
1042 #>
1043 Function ValidateCredentialsOnNanoServer
1044 {
1045     param
1046     (
1047         [parameter(Mandatory = $true)]
1048         [ValidateNotNullOrEmpty()]
1049         [System.String]
1050         $UserName,
1051
1052         [ValidateNotNullOrEmpty()]
1053         [securestring]
1054         $Password
1055     )
1056
1057     $source = @'
1058         [Flags]
1059         private enum LogonType
1060         {
1061             Logon32LogonInteractive = 2,
1062             Logon32LogonNetwork,
1063             Logon32LogonBatch,
1064             Logon32LogonService,
1065             Logon32LogonUnlock,
1066             Logon32LogonNetworkCleartext,
1067             Logon32LogonNewCredentials
1068         }
1069
1070         [Flags]
1071         private enum LogonProvider
1072         {
1073             Logon32ProviderDefault = 0,
1074             Logon32ProviderWinnt35,
1075             Logon32ProviderWinnt40,
1076             Logon32ProviderWinnt50
1077         }
1078
1079         [DllImport("api-ms-win-security-logon-l1-1-1.dll", CharSet = CharSet.Unicode, SetLastError = true)]
1080         private static extern Boolean LogonUser(
1081             String lpszUserName,
1082             String lpszDomain,
1083             IntPtr lpszPassword,
1084             LogonType dwLogonType,
1085             LogonProvider dwLogonProvider,
1086             out IntPtr phToken
1087             );
1088
1089
1090         [DllImport("api-ms-win-core-handle-l1-1-0.dll",
1091             EntryPoint = "CloseHandle", SetLastError = true,
1092             CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
1093         internal static extern bool CloseHandle(IntPtr handle);
1094
1095         public static bool ValidateCredentials(string username, SecureString password)
1096         {
1097             IntPtr tokenHandle = IntPtr.Zero;
1098             IntPtr unmanagedPassword = IntPtr.Zero;
1099
1100             unmanagedPassword = SecureStringMarshal.SecureStringToCoTaskMemUnicode(password);
1101
1102             try
1103             {
1104                 return LogonUser(
1105                     username,
1106                     null,
1107                     unmanagedPassword,
1108                     LogonType.Logon32LogonInteractive,
1109                     LogonProvider.Logon32ProviderDefault,
1110                     out tokenHandle);
1111             }
1112             catch
1113             {
1114                 return false;
1115             }
1116             finally
1117             {
1118                 if (tokenHandle != IntPtr.Zero)
1119                 {
1120                     CloseHandle(tokenHandle);
1121                 }
1122                 if (unmanagedPassword != IntPtr.Zero) {
1123                     Marshal.ZeroFreeCoTaskMemUnicode(unmanagedPassword);
1124                 }
1125                 unmanagedPassword = IntPtr.Zero;
1126             }
1127         }
1128 '@
1129
1130     Add-Type -PassThru -Namespace Microsoft.Windows.DesiredStateConfiguration.NanoServer.UserResource `
1131         -Name CredentialsValidationTool -MemberDefinition $source -Using System.Security -ReferencedAssemblies System.Security.SecureString.dll | Out-Null
1132     return [Microsoft.Windows.DesiredStateConfiguration.NanoServer.UserResource.CredentialsValidationTool]::ValidateCredentials($UserName, $Password)
1133 }
1134
1135
1136 Export-ModuleMember -function Get-TargetResource, Set-TargetResource, Test-TargetResource