functions/Set-WUGDeviceCredential.ps1

<#
.SYNOPSIS
Manages credential assignments on a device in WhatsUp Gold.
 
.DESCRIPTION
The Set-WUGDeviceCredential function assigns, unassigns, or removes credentials from a device:
- Assign credential: POST /api/v1/devices/{deviceId}/credentials/-
- Unassign specific credential: DELETE /api/v1/devices/{deviceId}/credentials/{credentialId}
- Remove all credentials by type: DELETE /api/v1/devices/{deviceId}/credentials/-
 
.PARAMETER DeviceId
The ID of the device to manage credentials for. Required.
 
.PARAMETER CredentialId
The ID of the credential to assign or unassign. Required for Assign and Unassign parameter sets.
 
.PARAMETER Assign
Switch to assign a credential to the device.
 
.PARAMETER Unassign
Switch to unassign a specific credential from the device.
 
.PARAMETER RemoveByType
Switch to remove all credentials of a specific type from the device.
 
.PARAMETER Type
The type of credentials to remove when using RemoveByType. Valid values: all, snmp, windows, ado, telnet, ssh, vmware, jmx, smis, aws, azure, meraki, restapi, ubiquiti, redfish. Default: all.
 
.PARAMETER PreventOrphanActiveMonitors
Prevent the operation if an active monitor would be orphaned. Default: true.
 
.EXAMPLE
# Assign a credential to a device
Set-WUGDeviceCredential -DeviceId "123" -CredentialId "abc-456" -Assign
 
.EXAMPLE
# Unassign a credential from a device
Set-WUGDeviceCredential -DeviceId "123" -CredentialId "abc-456" -Unassign
 
.EXAMPLE
# Remove all SNMP credentials from a device
Set-WUGDeviceCredential -DeviceId "123" -RemoveByType -Type snmp
 
.NOTES
Author: Jason Alberino (jason@wug.ninja)
Reference: https://docs.ipswitch.com/NM/WhatsUpGold2024/02_Guides/rest_api/index.html#tag/Device
#>

function Set-WUGDeviceCredential {
    [CmdletBinding(SupportsShouldProcess = $true)]
    param(
        [Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
        [Alias('id')]
        [string]$DeviceId,

        [Parameter(Mandatory = $true, ParameterSetName = 'Assign')]
        [Parameter(Mandatory = $true, ParameterSetName = 'Unassign')]
        [string]$CredentialId,

        [Parameter(Mandatory = $true, ParameterSetName = 'Assign')]
        [switch]$Assign,

        [Parameter(Mandatory = $true, ParameterSetName = 'Unassign')]
        [switch]$Unassign,

        [Parameter(Mandatory = $true, ParameterSetName = 'RemoveByType')]
        [switch]$RemoveByType,

        [Parameter(ParameterSetName = 'RemoveByType')]
        [ValidateSet('all', 'snmp', 'windows', 'ado', 'telnet', 'ssh', 'vmware', 'jmx', 'smis', 'aws', 'azure', 'meraki', 'restapi', 'ubiquiti', 'redfish')]
        [string]$Type = 'all',

        [Parameter(ParameterSetName = 'Unassign')]
        [Parameter(ParameterSetName = 'RemoveByType')]
        [bool]$PreventOrphanActiveMonitors = $true
    )

    begin {
        Write-Debug "Starting Set-WUGDeviceCredential function. ParameterSet: $($PSCmdlet.ParameterSetName)"
        $baseUri = "${global:WhatsUpServerBaseURI}/api/v1/devices"
    }

    process {
        switch ($PSCmdlet.ParameterSetName) {

            'Assign' {
                $uri = "${baseUri}/${DeviceId}/credentials/-"
                $body = "`"${CredentialId}`""
                Write-Debug "PUT URI: $uri, Body: $body"
                try {
                    $result = Get-WUGAPIResponse -Uri $uri -Method 'PUT' -Body $body
                    if ($result.success) {
                        Write-Verbose "Successfully assigned credential ${CredentialId} to device ${DeviceId}."
                    }
                    return $result
                }
                catch {
                    Write-Error "Error assigning credential to device ${DeviceId}: $_"
                }
            }

            'Unassign' {
                if (-not $PSCmdlet.ShouldProcess("Credential ${CredentialId} on device ${DeviceId}", 'Unassign credential')) { return }
                $queryParams = @()
                if (-not $PreventOrphanActiveMonitors) { $queryParams += "preventOrphanActiveMonitors=false" }
                $query = if ($queryParams.Count -gt 0) { "?" + ($queryParams -join "&") } else { "" }
                $uri = "${baseUri}/${DeviceId}/credentials/${CredentialId}${query}"

                Write-Debug "DELETE URI: $uri"
                try {
                    $result = Get-WUGAPIResponse -Uri $uri -Method 'DELETE'
                    if ($result.success) {
                        Write-Verbose "Successfully unassigned credential ${CredentialId} from device ${DeviceId}."
                    }
                    return $result
                }
                catch {
                    Write-Error "Error unassigning credential from device ${DeviceId}: $_"
                }
            }

            'RemoveByType' {
                if (-not $PSCmdlet.ShouldProcess("${Type} credentials on device ${DeviceId}", 'Remove credentials by type')) { return }
                $queryParams = @()
                if ($Type) { $queryParams += "type=$Type" }
                if (-not $PreventOrphanActiveMonitors) { $queryParams += "preventOrphanActiveMonitors=false" }
                $query = if ($queryParams.Count -gt 0) { "?" + ($queryParams -join "&") } else { "" }
                $uri = "${baseUri}/${DeviceId}/credentials/-${query}"

                Write-Debug "DELETE URI: $uri"
                try {
                    $result = Get-WUGAPIResponse -Uri $uri -Method 'DELETE'
                    if ($result.success) {
                        Write-Verbose "Successfully removed ${Type} credentials from device ${DeviceId}."
                    }
                    return $result
                }
                catch {
                    Write-Error "Error removing credentials from device ${DeviceId}: $_"
                }
            }
        }
    }

    end {
        Write-Debug "Completed Set-WUGDeviceCredential function."
    }
}

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