CertificatePolicy obsolete in PowerShell 7.1

[oleahy]

Thank you for this useful module.

We have been using it successfully with PowerShell version 5.1, but it appears that the switch -SkipCertificateCheck on the cmdlet Connect-VIMobServer does not work with powershell version 7.1

Searching online I see that ICertificatePolicy and CertificatePolicy are obsolete, https://docs.microsoft.com/en-us/dotnet/api/system.net.servicepointmanager.certificatepolicy?view=netframework-4.7.2

Is there a work around or an alternative way of using this module?

This is the error we get:

    PS /scripts> Import-Module -Name "VIPerms"
    PS /scripts> [securestring]$secStringPassword = ConvertTo-SecureString "*******" -AsPlainText -Force
    PS /scripts> [pscredential]$credObject = New-Object System.Management.Automation.PSCredential ("*****", $secStringPassword)
    PS /scripts> Connect-VIMobServer -Server "10.0.0.10" -Credential $credObject -SkipCertificateCheck
    Add-Type: /home/host/.local/share/powershell/Modules/VIPerms/0.0.6/Private/Set-CertPolicy.ps1:24
    Line |
      24 |                      Add-Type -TypeDefinition  @"
         |                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         | (3,56): error CS0246: The type or namespace name 'ICertificatePolicy' could not be found (are you
         | missing a using directive or an assembly reference?)                     public class
         | TrustAllCertsPolicy : ICertificatePolicy {                                                        ^

    Add-Type: /home/host/.local/share/powershell/Modules/VIPerms/0.0.6/Private/Set-CertPolicy.ps1:24
    Line |
      24 |                      Add-Type -TypeDefinition  @"
          |                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          | Cannot add type. Compilation errors occurred.

The version of Powershell that fails is 7.1.0

    PS /scripts> $PSVersionTable.PSVersion
    Major  Minor  Patch  PreReleaseLabel BuildLabel
    -----  -----  -----  --------------- ----------
    7      1      0

[alvxyz111]

Hello I had the same error when I try to use it

PS /root> Connect-VIMobServer -Server "vc-test.corp" -SkipCertificateCheck

cmdlet Connect-VIMobServer at command pipeline position 1
Supply values for the following parameters:
Credential
User: administrator@vsphere.local
Password for user administrator@vsphere.local: *******

Add-Type: /root/.local/share/powershell/Modules/VIPerms/0.0.6/Private/Set-CertPolicy.ps1:24
Line |
24 | Add-Type -TypeDefinition @"
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| (3,56): error CS0246: The type or namespace name 'ICertificatePolicy' could not be found (are you missing a using directive or an assembly reference?) public class TrustAllCertsPolicy : ICertificatePolicy {
| ^

Add-Type: /root/.local/share/powershell/Modules/VIPerms/0.0.6/Private/Set-CertPolicy.ps1:24
Line |
24 | Add-Type -TypeDefinition @"
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Cannot add type. Compilation errors occurred.

PS /root> VIGlobalPermission
Add-Type: /root/.local/share/powershell/Modules/VIPerms/0.0.6/Private/Set-CertPolicy.ps1:24
Line |
24 | Add-Type -TypeDefinition @"
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| (3,56): error CS0246: The type or namespace name 'ICertificatePolicy' could not be found (are you missing a using directive or an assembly reference?) public class TrustAllCertsPolicy : ICertificatePolicy {
| ^

Add-Type: /root/.local/share/powershell/Modules/VIPerms/0.0.6/Private/Set-CertPolicy.ps1:24
Line |
24 | Add-Type -TypeDefinition @"
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Cannot add type. Compilation errors occurred.

did you find the solution on this? thanks and regards

[ssamantasinghar]

similar issue which I am also facing!
I am trying to reuse this powershell script which performs smoketest post deployment. The script works just fine when I run locally on the build server but when I try to run through my gitlab pipeline it fails with error: add-type @"(3,36): error CS0246: The type or namespace name 'ICertificatePolicy' could not be found (are you missing a using directive or an assembly reference?) public class TrustAllCertsPolicy : ICertificatePolicy {

Code that is erroring out:

add-type @"
using System.Net;
using System.Security.Cryptography.X509Certificates;
public class TrustAllCertsPolicy : ICertificatePolicy {
    public bool CheckValidationResult(
        ServicePoint srvPoint, X509Certificate certificate,
        WebRequest request, int certificateProblem) {
        return true;
    }
}
"@
$AllProtocols = [System.Net.SecurityProtocolType]'Ssl3,Tls,Tls11,Tls12'
[System.Net.ServicePointManager]::SecurityProtocol = $AllProtocols
[System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy

$HTTP_Status_Timeout = 0
$HTTP_Request = [System.Net.WebRequest]::Create($url)

My understanding so far: Based on my research I tried to compare the Powershell version of my build server vs gitlab pipeline

Build server

Name                           Value
----                           -----
PSVersion                      5.1.14393.4583
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.14393.4583
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3

gitlab pipeline

PSVersion                      7.2.4
PSEdition                      Core
GitCommitId                    7.2.4
OS                             Microsoft Windows 10.0.14393
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0.}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

As I understand the piece of code does not work in powershell 7

Any suggestions which can resolve this issue

[butch7903]

Solution to Set-CertPolicy is below. Can we please request this be updated in the module?

function Set-CertPolicy {
<#
.SYNOPSIS
Ignore SSL verification.

.DESCRIPTION
Using a custom .NET type, override SSL verification policies.

#>

param (
    [Switch] $SkipCertificateCheck,
    [Switch] $ResetToDefault
)

try {
    if ($SkipCertificateCheck) {
        if ($PSVersionTable.PSEdition -eq 'Core') {
            # Invoke-restmethod provide Skip certcheck param in powershell core
            $Script:PSDefaultParameterValues = @{
                "invoke-restmethod:SkipCertificateCheck" = $true
                "invoke-webrequest:SkipCertificateCheck" = $true
            }
        }else{
                Add-Type -TypeDefinition  @"
                using System.Net;
                using System.Security.Cryptography.X509Certificates;
                public class TrustAllCertsPolicy : ICertificatePolicy {
                    public bool CheckValidationResult(
                        ServicePoint srvPoint, X509Certificate certificate,
                        WebRequest request, int certificateProblem) {
                        return true;
                    }
                }

"@
}
[Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy
}
} catch {
$Err = $_
throw $Err
}
}

[andre-m-faria]

Hello,

I just want to make clear that I used ChatGPT to fix my problem, therefore, I will not be able to help with any questions regarding the code below.

Okay, that said.

@butch7903, thank you for you code, it really helped me to fix the error CS0246: The type or namespace name 'ICertificatePolicy' could not be found.

But I stumbled in another error.

After inserting my credentials, it trowed the following error.
Cannot find type [TrustAllCertsPolicy]: verify that the assembly containing this type is loaded.

Okay, as I don't know much about PowerShell, I appealed to ChatGPT, in the code below ChatGPT added a step to verify if "System.Net.Http" (that contains the type TrustAllCertsPolicy) is already loaded, and if not it will load itself.

    <#
    .SYNOPSIS
    Ignore SSL verification.

    .DESCRIPTION
    Using a custom .NET type, override SSL verification policies.
    #>

    param (
        [Switch] $SkipCertificateCheck,
        [Switch] $ResetToDefault
    )

    try {
        if ($SkipCertificateCheck) {
            if ($PSVersionTable.PSEdition -eq 'Core') {
                # Invoke-restmethod provide Skip certcheck param in PowerShell Core
                $Script:PSDefaultParameterValues = @{
                    "invoke-restmethod:SkipCertificateCheck" = $true
                    "invoke-webrequest:SkipCertificateCheck" = $true
                }
            } else {
                # Load the assembly containing TrustAllCertsPolicy if not already loaded
                $assemblyName = 'System.Net.Http'
                $loadedAssemblies = [System.AppDomain]::CurrentDomain.GetAssemblies() | ForEach-Object { $_.GetName().Name }

                if (-not $loadedAssemblies.Contains($assemblyName)) {
                    Add-Type -AssemblyName $assemblyName
                }

                Add-Type -TypeDefinition  @"
                using System.Net;
                using System.Security.Cryptography.X509Certificates;
                public class TrustAllCertsPolicy : ICertificatePolicy {
                    public bool CheckValidationResult(
                        ServicePoint srvPoint, X509Certificate certificate,
                        WebRequest request, int certificateProblem) {
                        return true;
                    }
                }
"@
                [Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy
            }
        }
    } catch {
        $Err = $_
        throw $Err
    }
}

Name                           Value
----                           -----
PSVersion                      7.4.1
PSEdition                      Core
GitCommitId                    7.4.1
OS                             Microsoft Windows 10.0.20348
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0