functions/Get-DbaComputerCertificate.ps1
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#ValidationTags#Messaging,FlowControl,Pipeline,CodeStyle# function Get-DbaComputerCertificate { <# .SYNOPSIS Simplifies finding computer certificates that are candidates for using with SQL Server's network encryption .DESCRIPTION Gets computer certificates on localhost that are candidates for using with SQL Server's network encryption .PARAMETER ComputerName The target SQL Server instance or instances. Defaults to localhost. If target is a cluster, you must specify the distinct nodes. .PARAMETER Credential Allows you to login to $ComputerName using alternative credentials. .PARAMETER Store Certificate store - defaults to LocalMachine .PARAMETER Folder Certificate folder - defaults to My (Personal) .PARAMETER Path The path to a certificate - basically changes the path into a certificate object .PARAMETER Thumbprint Return certificate based on thumbprint .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .NOTES Tags: Certificate Author: Chrissy LeMaire (@cl), netnerds.net Website: https://dbatools.io Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .EXAMPLE PS C:\> Get-DbaComputerCertificate Gets computer certificates on localhost that are candidates for using with SQL Server's network encryption .EXAMPLE PS C:\> Get-DbaComputerCertificate -ComputerName sql2016 Gets computer certificates on sql2016 that are candidates for using with SQL Server's network encryption .EXAMPLE PS C:\> Get-DbaComputerCertificate -ComputerName sql2016 -Thumbprint 8123472E32AB412ED4288888B83811DB8F504DED, 04BFF8B3679BB01A986E097868D8D494D70A46D6 Gets computer certificates on sql2016 that match thumbprints 8123472E32AB412ED4288888B83811DB8F504DED or 04BFF8B3679BB01A986E097868D8D494D70A46D6 #> [CmdletBinding()] param ( [parameter(ValueFromPipeline)] [Alias("ServerInstance", "SqlServer", "SqlInstance")] [DbaInstanceParameter[]]$ComputerName = $env:COMPUTERNAME, [PSCredential]$Credential, [string]$Store = "LocalMachine", [string]$Folder = "My", [string]$Path, [string[]]$Thumbprint, [switch]$EnableException ) begin { #region Scriptblock for remoting $scriptblock = { param ( $Thumbprint, $Store, $Folder, $Path ) if ($Path) { $bytes = [System.IO.File]::ReadAllBytes($path) $Certificate = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2 $Certificate.Import($bytes, $null, [System.Security.Cryptography.X509Certificates.X509KeyStorageFlags]::DefaultKeySet) return $Certificate } function Get-CoreCertStore { [CmdletBinding()] param ( [ValidateSet("CurrentUser", "LocalMachine")] [string]$Store, [ValidateSet("AddressBook", "AuthRoot, CertificateAuthority", "Disallowed", "My", "Root", "TrustedPeople", "TrustedPublisher")] [string]$Folder, [ValidateSet("ReadOnly", "ReadWrite")] [string]$Flag = "ReadOnly" ) $storename = [System.Security.Cryptography.X509Certificates.StoreLocation]::$Store $foldername = [System.Security.Cryptography.X509Certificates.StoreName]::$Folder $flags = [System.Security.Cryptography.X509Certificates.OpenFlags]::$Flag $certstore = [System.Security.Cryptography.X509Certificates.X509Store]::New($foldername, $storename) $certstore.Open($flags) $certstore } function Get-CoreCertificate { [CmdletBinding()] param ( [ValidateSet("CurrentUser", "LocalMachine")] [string]$Store, [ValidateSet("AddressBook", "AuthRoot, CertificateAuthority", "Disallowed", "My", "Root", "TrustedPeople", "TrustedPublisher")] [string]$Folder, [ValidateSet("ReadOnly", "ReadWrite")] [string]$Flag = "ReadOnly", [string[]]$Thumbprint, [System.Security.Cryptography.X509Certificates.X509Store[]]$InputObject ) if (-not $InputObject) { $InputObject += Get-CoreCertStore -Store $Store -Folder $Folder -Flag $Flag } $certs = ($InputObject).Certificates if ($Thumbprint) { $certs = $certs | Where-Object Thumbprint -in $Thumbprint } $certs } if ($Thumbprint) { try { <# DO NOT use Write-Message as this is inside of a script block #> Write-Verbose "Searching Cert:\$Store\$Folder" Get-CoreCertificate -Store $Store -Folder $Folder -Thumbprint $Thumbprint } catch { # don't care - there's a weird issue with remoting where an exception gets thrown for no apparent reason # here to avoid an empty catch $null = 1 } } else { try { <# DO NOT use Write-Message as this is inside of a script block #> Write-Verbose "Searching Cert:\$Store\$Folder" Get-CoreCertificate -Store $Store -Folder $Folder | Where-Object EnhancedKeyUsageList -match '1\.3\.6\.1\.5\.5\.7\.3\.1' } catch { # still don't care # here to avoid an empty catch $null = 1 } } } #endregion Scriptblock for remoting } process { foreach ($computer in $computername) { try { Invoke-Command2 -ComputerName $computer -Credential $Credential -ScriptBlock $scriptblock -ArgumentList $thumbprint, $Store, $Folder, $Path -ErrorAction Stop | Select-DefaultView -Property FriendlyName, DnsNameList, Thumbprint, NotBefore, NotAfter, Subject, Issuer } catch { Stop-Function -Message "Issue connecting to computer" -ErrorRecord $_ -Target $computer -Continue } } } } |