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Add VssClientCredentials support for ClientOM 19+ compatibility #1137

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Add VssClientCredentials support for ClientOM 19+ compatibility #1137

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Copilot Dec 2, 2025
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Add VssClientCredentials support for ClientOM 19+ compatibility
Copilot Dec 2, 2025
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22 changes: 22 additions & 0 deletions powershell/VstsTaskSdk/ServerOMFunctions.ps1
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Original file line number Diff line number Diff line change
Expand Up @@ -164,6 +164,28 @@ function Get-TfsClientCredentials {
}
[System.AppDomain]::CurrentDomain.add_AssemblyResolve($onAssemblyResolve)

# Check if the VssClientCredentials type is available (ClientOM 19+).
# This type replaced TfsClientCredentials in newer versions of the SDK.
if ((Get-OMType -TypeName 'Microsoft.VisualStudio.Services.Client.VssClientCredentials' -OMKind 'WebApi' -OMDirectory $OMDirectory)) {
# Check if the VssOAuthAccessTokenCredential type is available.
if ((Get-OMType -TypeName 'Microsoft.VisualStudio.Services.OAuth.VssOAuthAccessTokenCredential' -OMKind 'WebApi' -OMDirectory $OMDirectory)) {
# Create the federated credential.
$federatedCredential = New-Object Microsoft.VisualStudio.Services.OAuth.VssOAuthAccessTokenCredential($endpoint.auth.parameters.AccessToken)
} else {
# Validate the fallback type can be loaded.
$null = Get-OMType -TypeName 'Microsoft.VisualStudio.Services.Client.VssOAuthCredential' -OMKind 'WebApi' -OMDirectory $OMDirectory -Require

# Create the federated credential.
$federatedCredential = New-Object Microsoft.VisualStudio.Services.Client.VssOAuthCredential($endpoint.auth.parameters.AccessToken)
}

# Construct the credentials using VssClientCredentials.
$windowsCredential = New-Object Microsoft.VisualStudio.Services.Common.WindowsCredential($false) # Do not use default credentials.
$credentials = New-Object Microsoft.VisualStudio.Services.Client.VssClientCredentials($windowsCredential, $federatedCredential, [Microsoft.VisualStudio.Services.Common.CredentialPromptType]::DoNotPrompt)
return $credentials
}

# Fall back to TfsClientCredentials for older versions of the SDK.
# Validate the type can be found.
$null = Get-OMType -TypeName 'Microsoft.TeamFoundation.Client.TfsClientCredentials' -OMKind 'ExtendedClient' -OMDirectory $OMDirectory -Require

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