public/Get-VPASSpecificAuthenticationMethod.ps1

<#
.Synopsis
   GET SPECIFIC AUTHENTICATION METHOD
   CREATED BY: Vadim Melamed, EMAIL: vmelamed5@gmail.com
.DESCRIPTION
   USE THIS FUNCTION TO GET SPECIFIC AUTHENTICATION METHOD INTO CYBERARK
.PARAMETER NoSSL
   If the environment is not set up for SSL, API calls will be made via HTTP not HTTPS (Not Recommended!)
.PARAMETER token
   HashTable of data containing various pieces of login information (PVWA, LoginToken, HeaderType, etc).
   If -token is not passed, function will use last known hashtable generated by New-VPASToken
.PARAMETER AuthMethodSearch
   Search string to find the target AuthenticationMethod
.PARAMETER AuthMethodID
   Unique ID that maps to the target AuthenticationMethod
   Supply AuthMethodID to skip any querying for target AuthenticationMethod
.EXAMPLE
   $AuthenticationMethodJSON = Get-VPASSpecificAuthenticationMethod -AuthMethodSearch {SEARCH QUERY VALUE}
.EXAMPLE
   $AuthenticationMethodJSON = Get-VPASSpecificAuthenticationMethod -AuthMethodID {AUTH METHOD ID VALUE}
.OUTPUTS
   JSON Object (AuthenticationMethod) if successful
   $false if failed
#>

function Get-VPASSpecificAuthenticationMethod{
    [OutputType('System.Object',[bool])]
    [CmdletBinding()]
    Param(

        [Parameter(Mandatory=$false,ValueFromPipelineByPropertyName=$true,Position=0)]
        [String]$AuthMethodSearch,

        [Parameter(Mandatory=$false,ValueFromPipelineByPropertyName=$true,Position=1)]
        [String]$AuthMethodID,

        [Parameter(Mandatory=$false,ValueFromPipelineByPropertyName=$true,Position=2)]
        [hashtable]$token,

        [Parameter(Mandatory=$false,ValueFromPipelineByPropertyName=$true,Position=3)]
        [Switch]$NoSSL
    )

    Begin{
        $tokenval,$sessionval,$PVWA,$Header,$ISPSS,$IdentityURL = Get-VPASSession -token $token
    }
    Process{

        Write-Verbose "SUCCESSFULLY PARSED PVWA VALUE"
        Write-Verbose "SUCCESSFULLY PARSED TOKEN VALUE"

        try{

            if([String]::IsNullOrEmpty($AuthMethodID)){
                Write-Verbose "NO AUTH METHOD ID PROVIDED...INVOKING HELPER FUNCTION TO RETRIEVE UNIQUE AUTH METHOD ID BASED ON SPECIFIED PARAMETERS"
                if($NoSSL){
                    $AuthMethodID = Get-VPASAuthenticationMethodIDHelper -token $token -AuthenticationMethodSearch $AuthMethodSearch -NoSSL
                }
                else{
                    $AuthMethodID = Get-VPASAuthenticationMethodIDHelper -token $token -AuthenticationMethodSearch $AuthMethodSearch
                }
                Write-Verbose "RETURNING AUTH METHOD ID"
            }
            else{
                Write-Verbose "AUTH METHOD ID SUPPLIED, SKIPPING HELPER FUNCTION"
            }


            if($NoSSL){
                Write-Verbose "NO SSL ENABLED, USING HTTP INSTEAD OF HTTPS"
                $uri = "http://$PVWA/passwordvault/api/Configuration/AuthenticationMethods/$AuthMethodID/"
            }
            else{
                Write-Verbose "SSL ENABLED BY DEFAULT, USING HTTPS"
                $uri = "https://$PVWA/passwordvault/api/Configuration/AuthenticationMethods/$AuthMethodID/"
            }

            write-verbose "MAKING API CALL TO CYBERARK"

            if($sessionval){
                $response = Invoke-RestMethod -Headers @{"Authorization"=$Header} -Uri $uri -Method GET -ContentType "application/json" -WebSession $sessionval
            }
            else{
                $response = Invoke-RestMethod -Headers @{"Authorization"=$Header} -Uri $uri -Method GET -ContentType "application/json"
            }
            Write-Verbose "RETURNING JSON OBJECT"
            return $response
        }catch{
            Write-Verbose "UNABLE TO GET AUTHENTICATION METHODS"
            Write-VPASOutput -str $_ -type E
            return $false
        }
    }
    End{

    }
}