public/Add-VPASAllowedReferrer.ps1

<#
.Synopsis
   ADD ALLOWED REFERRERS
   CREATED BY: Vadim Melamed, EMAIL: vmelamed5@gmail.com
.DESCRIPTION
   USE THIS FUNCTION TO ADD ALLOWED REFERRERS TO CYBERARK
.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 ReferrerURL
   Target URL that will be whitelisted to allow the PVWA to redirect from
.PARAMETER RegularExpression
   Define if the ReferrerURL will be treated as a regular expression
.EXAMPLE
   $AddAllowedReferrerStatus = Add-VPASAllowedReferrer -ReferrerURL {REFERRERURL VALUE} -RegularExpression
.OUTPUTS
   $true if successful
   $false if failed
#>

function Add-VPASAllowedReferrer{
    [OutputType([bool])]
    [CmdletBinding()]
    Param(

        [Parameter(Mandatory=$true,ValueFromPipelineByPropertyName=$true,HelpMessage="Enter new Referrer URL (for example: https://CompanySite.com/)",Position=0)]
        [String]$ReferrerURL,

        [Parameter(Mandatory=$false,ValueFromPipelineByPropertyName=$true,Position=1)]
        [Switch]$RegularExpression,

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

    Begin{
        $tokenval,$sessionval,$PVWA,$Header,$ISPSS,$IdentityURL,$EnableTextRecorder,$AuditTimeStamp,$NoSSL,$VaultVersion,$HideWarnings,$AuthenticatedAs,$SubDomain = Get-VPASSession -token $token
        $CommandName = $MyInvocation.MyCommand.Name
        $log = Write-VPASTextRecorder -inputval $CommandName -token $token -LogType COMMAND
    }
    Process{
        Write-Verbose "SUCCESSFULLY PARSED PVWA VALUE"
        Write-Verbose "SUCCESSFULLY PARSED TOKEN VALUE"
        Write-Verbose "SUCCESSFULLY PARSED REFERRERURL VALUE: $ReferrerURL"

        try{

            write-verbose "INITIALIZING API PARAMETERS"
            $params = @{
                referrerURL = $ReferrerURL
            }

            if($RegularExpression){
                $params += @{
                    regularExpression = "True"
                }
            }
            else{
                $params += @{
                    regularExpression = "False"
                }
            }
            $log = Write-VPASTextRecorder -inputval $params -token $token -LogType PARAMS
            $params = $params | ConvertTo-Json

            if($NoSSL){
                Write-Verbose "NO SSL ENABLED, USING HTTP INSTEAD OF HTTPS"
                $uri = "http://$PVWA/passwordvault/api/Configuration/AccessRestriction/AllowedReferrers"
            }
            else{
                Write-Verbose "SSL ENABLED BY DEFAULT, USING HTTPS"
                $uri = "https://$PVWA/passwordvault/api/Configuration/AccessRestriction/AllowedReferrers"
            }
            $log = Write-VPASTextRecorder -inputval $uri -token $token -LogType URI
            $log = Write-VPASTextRecorder -inputval "POST" -token $token -LogType METHOD

            write-verbose "MAKING API CALL TO CYBERARK"

            if($sessionval){
                $response = Invoke-RestMethod -Headers @{"Authorization"=$Header} -Uri $uri -Method POST -Body $params -ContentType "application/json" -WebSession $sessionval
            }
            else{
                $response = Invoke-RestMethod -Headers @{"Authorization"=$Header} -Uri $uri -Method POST -Body $params -ContentType "application/json"
            }
            $log = Write-VPASTextRecorder -inputval "REST API COMMAND RETURNED: TRUE" -token $token -LogType MISC
            Write-Verbose "SUCCESSFULLY ADDED ALLOWED REFERRER: $ReferrerURL"
            return $true
        }catch{
            $log = Write-VPASTextRecorder -inputval $_ -token $token -LogType ERROR
            $log = Write-VPASTextRecorder -inputval "REST API COMMAND RETURNED: FALSE" -token $token -LogType MISC
            Write-Verbose "UNABLE TO ADD ALLOWED REFERRER"
            Write-VPASOutput -str $_ -type E
            return $false
        }
    }
    End{
        $log = Write-VPASTextRecorder -inputval $CommandName -token $token -LogType DIVIDER
    }
}