functions/New-DbaDbMaskingConfig.ps1
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function New-DbaDbMaskingConfig { <# .SYNOPSIS Generates a new data masking configuration file. .DESCRIPTION Generates a new data masking configuration file. This file is important to apply any data masking to the data in a database. Note that the following column and data types are not currently supported: Identity ForeignKey Computed Hierarchyid Geography Xml Read more here: https://sachabarbs.wordpress.com/2018/06/11/bogus-simple-fake-data-tool/ https://github.com/bchavez/Bogus .PARAMETER SqlInstance The target SQL Server instance or instances. .PARAMETER SqlCredential Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential) .PARAMETER Database Databases to process through .PARAMETER Table Tables to process. By default all the tables will be processed .PARAMETER Column Columns to process. By default all the columns will be processed .PARAMETER Path Path where to save the generated JSON files. Th naming convention will be "servername.databasename.tables.json" .PARAMETER Locale Set the local to enable certain settings in the masking .PARAMETER Force Forcefully execute commands when needed .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .NOTES Tags: DataMasking, Database Author: Sander Stad (@sqlstad, sqlstad.nl) | Chrissy LeMaire (@cl, netnerds.net) Website: https://dbatools.io Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/New-DbaDbMaskingConfig .EXAMPLE New-DbaDbMaskingConfig -SqlInstance SQLDB1 -Database DB1 -Path C:\Temp\clone Process all tables and columns for database DB1 on instance SQLDB1 .EXAMPLE New-DbaDbMaskingConfig -SqlInstance SQLDB1 -Database DB1 -Table Customer -Path C:\Temp\clone Process only table Customer with all the columns .EXAMPLE New-DbaDbMaskingConfig -SqlInstance SQLDB1 -Database DB1 -Table Customer -Column City -Path C:\Temp\clone Process only table Customer and only the column named "City" #> [CmdLetBinding()] param ( [parameter(Mandatory)] [DbaInstanceParameter[]]$SqlInstance, [PSCredential]$SqlCredential, [string[]]$Database, [string[]]$Table, [string[]]$Column, [parameter(Mandatory)] [string]$Path, [string]$Locale = 'en', [switch]$Force, [switch]$EnableException ) begin { # Get all the different column types try { $columnTypes = Get-Content -Path "$script:PSModuleRoot\bin\datamasking\columntypes.json" | ConvertFrom-Json } catch { Stop-Function -Message "Something went wrong importing the column types" -Continue } # Check if the Path is accessible if (-not (Test-Path -Path $Path)) { try { $null = New-Item -Path $Path -ItemType Directory -Force:$Force } catch { Stop-Function -Message "Could not create Path directory" -ErrorRecord $_ -Target $Path } } else { if ((Get-Item $path) -isnot [System.IO.DirectoryInfo]) { Stop-Function -Message "$Path is not a directory" } } } process { if (Test-FunctionInterrupt) { return } if ($SqlInstance) { $InputObject += Get-DbaDatabase -SqlInstance $SqlInstance -SqlCredential $SqlCredential -Database $Database } $results = @() foreach ($db in $InputObject) { $server = $db.Parent $tables = @() # Get the tables if ($Table) { $tablecollection = $db.Tables | Where-Object Name -in $Table } else { $tablecollection = $db.Tables } if ($tablecollection.Count -lt 1) { Stop-Function -Message "The database does not contain any tables" -Target $db -Continue } # Loop through the tables foreach ($tableobject in $tablecollection) { Write-Message -Message "Processing table $($tableobject.Name)" -Level Verbose $columns = @() # Get the columns if ($Column) { [array]$columncollection = $tableobject.Columns | Where-Object Name -in $Column } else { [array]$columncollection = $tableobject.Columns } foreach ($columnobject in $columncollection) { # Skip incompatible columns if ($columnobject.Identity) { Write-Message -Level Verbose -Message "Skipping $columnobject because it is an identity column" continue } if ($columnobject.IsForeignKey) { Write-Message -Level Verbose -Message "Skipping $columnobject because it is a foreign key" continue } if ($columnobject.Computed) { Write-Message -Level Verbose -Message "Skipping $columnobject because it is a computed column" continue } if ($columnobject.DataType.Name -eq 'hierarchyid') { Write-Message -Level Verbose -Message "Skipping $columnobject because it is a hierarchyid column" continue } if ($columnobject.DataType.Name -eq 'geography') { Write-Message -Level Verbose -Message "Skipping $columnobject because it is a geography column" continue } if ($columnobject.DataType.SqlDataType.ToString().ToLower() -eq 'xml') { Write-Message -Level Verbose -Message "Skipping $columnobject because it is a xml column" continue } $maskingType = $min = $null $columnLength = $columnobject.Datatype.MaximumLength $columnType = $columnobject.DataType.SqlDataType.ToString().ToLower() if ($columnobject.InPrimaryKey -and $columnobject.DataType.SqlDataType.ToString().ToLower() -notmatch 'date') { $min = 2 } if (-not $columnType) { $columnType = $columnobject.DataType.Name.ToLower() } # Get the masking type with the synonym $maskingType = $columnTypes | Where-Object { $columnobject.Name -in $_.Synonym } if ($maskingType) { # Make it easier to get the type name $maskingType = $maskingType | Select-Object TypeName -ExpandProperty TypeName switch ($maskingType.ToLower()) { "firstname" { $columns += [PSCustomObject]@{ Name = $columnobject.Name ColumnType = $columnType CharacterString = $null MinValue = $min MaxValue = $columnLength MaskingType = "Name" SubType = "Firstname" } } "lastname" { $columns += [PSCustomObject]@{ Name = $columnobject.Name ColumnType = $columnType CharacterString = $null MinValue = $min MaxValue = $columnLength MaskingType = "Name" SubType = "Lastname" } } "creditcard" { $columns += [PSCustomObject]@{ Name = $columnobject.Name ColumnType = $columnType CharacterString = $null MinValue = $min MaxValue = $columnLength MaskingType = "Finance" SubType = "CreditcardNumber" } } "address" { $columns += [PSCustomObject]@{ Name = $columnobject.Name ColumnType = $columnType CharacterString = $null MinValue = $min MaxValue = $columnLength MaskingType = "Address" SubType = "StreetAddress" } } "city" { $columns += [PSCustomObject]@{ Name = $columnobject.Name ColumnType = $columnType CharacterString = $null MinValue = $min MaxValue = $columnLength MaskingType = "Address" SubType = "City" } } "zipcode" { $columns += [PSCustomObject]@{ Name = $columnobject.Name ColumnType = $columnType CharacterString = $null MinValue = $min MaxValue = $columnLength MaskingType = "Address" SubType = "Zipcode" } } } } else { $type = "Random" switch ($columnType) { { $_ -in "bit", "bool" } { $subType = "Bool" $MaxValue = $null } "bigint" { $subType = "Number" $MaxValue = 9223372036854775807 } "int" { $subType = "Number" $MaxValue = 2147483647 } "date" { $subType = "Date" $MaxValue = $null } "datetime" { $subType = "Date" $MaxValue = $null } "datetime2" { $subType = "Date" $MaxValue = $null } "float" { $subType = "Float" $MaxValue = $null } "smallint" { $subType = "Number" $MaxValue = 32767 } "smalldatetime" { $subType = "Date" $MaxValue = $null } "tinyint" { $subType = "Number" $MaxValue = 255 } default { $subType = "String" $MaxValue = $columnLength } } $columns += [PSCustomObject]@{ Name = $columnobject.Name ColumnType = $columnType CharacterString = $null MinValue = $min MaxValue = $MaxValue MaskingType = $type SubType = $subType } } } # Check if something needs to be generated if ($columns) { $tables += [PSCustomObject]@{ Name = $tableobject.Name Schema = $tableobject.Schema Columns = $columns } } else { Write-Message -Message "No columns match for masking in table $($tableobject.Name)" -Level Verbose } } # Check if something needs to be generated if ($tables) { $results += [PSCustomObject]@{ Name = $db.Name Tables = $tables } } else { Write-Message -Message "No columns match for masking in table $($tableobject.Name)" -Level Verbose } } # Write the data to the Path if ($results) { try { $temppath = "$Path\$($server.Name.Replace('\', '$')).$($db.Name).tables.json" if (-not $script:isWindows) { $temppath = $temppath.Replace("\", "/") } Set-Content -Path $temppath -Value ($results | ConvertTo-Json -Depth 5) Get-ChildItem -Path $temppath } catch { Stop-Function -Message "Something went wrong writing the results to the Path" -Target $Path -Continue -ErrorRecord $_ } } else { Write-Message -Message "No tables to save for database $($db.Name) on $($server.Name)" -Level Verbose } } } |