public/Watch-VPASActivePSMSession.ps1

<#
.Synopsis
   MONITOR ACTIVE SESSION
   CREATED BY: Vadim Melamed, EMAIL: vmelamed5@gmail.com
.DESCRIPTION
   USE THIS FUNCTION TO MONITOR ACTIVE PSM SESSION
.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 SearchQuery
   Search string to find target resource via username, address, safe, platform, etc.
   Comma separated for multiple fields, or to search all pass a blank value like so: " "
.PARAMETER ActiveSessionID
   Unique ID that maps to the target ActiveSession
   Supply the ActiveSessionID to skip any querying to find the target ActiveSession
.PARAMETER OpenRDPFile
   Trigger the RDPFile to open by default, rather then just display the RDPFile contents
.EXAMPLE
   $MonitorActiveSessionRDPFile = Watch-VPASActivePSMSession -SearchQuery {SEARCHQUERY VALUE}
.EXAMPLE
   $MonitorActiveSessionRDPFile = Watch-VPASActivePSMSession -ActiveSessionID {ACTIVE SESSION ID VALUE}
.OUTPUTS
   RDPFile if successful
   $false if failed
#>

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

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

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

        [Parameter(Mandatory=$false,ValueFromPipelineByPropertyName=$true,Position=2)]
        [Switch]$OpenRDPFile,

        [Parameter(Mandatory=$false,ValueFromPipelineByPropertyName=$true,Position=3)]
        [hashtable]$token
    )

    Begin{
        $tokenval,$sessionval,$PVWA,$Header,$ISPSS,$IdentityURL,$EnableTextRecorder,$AuditTimeStamp,$NoSSL,$VaultVersion = 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"

        try{

            if([String]::IsNullOrEmpty($ActiveSessionID)){
                Write-Verbose "NO ACTIVESESSIONID PROVIDED...INVOKING HELPER FUNCTION TO RETRIEVE UNIQUE ACTIVE SESSION ID BASED ON SPECIFIED PARAMETERS"
                $ActiveSessionID = Get-VPASActiveSessionIDHelper -token $token -SearchQuery $SearchQuery
                Write-Verbose "RETURNING ACTIVE SESSION ID"
            }
            else{
                Write-Verbose "ACTIVE SESSION ID SUPPLIED, SKIPPING HELPER FUNCTION"
            }


            if($NoSSL){
                Write-Verbose "NO SSL ENABLED, USING HTTP INSTEAD OF HTTPS"
                $uri = "http://$PVWA/PasswordVault/API/LiveSessions/$ActiveSessionID/Monitor/"
            }
            else{
                Write-Verbose "SSL ENABLED BY DEFAULT, USING HTTPS"
                $uri = "https://$PVWA/PasswordVault/API/LiveSessions/$ActiveSessionID/Monitor/"
            }
            $log = Write-VPASTextRecorder -inputval $uri -token $token -LogType URI
            $log = Write-VPASTextRecorder -inputval "GET" -token $token -LogType METHOD
            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 "CONSTRUCTING FILENAME"
            $tempResponse = $response -split "`r`n"
            $GUID = $tempResponse[2] -split ":"
            $tempName = $GUID[2] + "-MONITORING.rdp"

            Write-Verbose "CREATING RDP FILE"
            $curUser = $env:UserName
            $outputPath = "C:\Users\$curUser\Downloads\$tempName"
            write-output $response | Set-Content $outputPath

            Write-Verbose "RDP FILE CREATED: $outputPath"

            if($OpenRDPFile){
                write-verbose "OPENING RDP FILE"
                #Invoke-Expression "mstsc.exe '$outputPath'"
                Start-Process "$env:windir\system32\mstsc.exe" -ArgumentList "$outputPath"
            }
            else{
                Write-VPASOutput -str "RDP FILE CREATED: $outputPath" -type M
                Write-VPASOutput -str "PLEASE NOTE THIS FILE IS VALID FOR ~15 SECONDS ONLY" -type M
            }

            $outputlog = $response
            $log = Write-VPASTextRecorder -inputval $outputlog -token $token -LogType RETURN

            Write-Verbose "RETURNING RDP FILE CONTENT"
            return $response
        }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 MONITOR ACTIVE SESSION"
            Write-VPASOutput -str $_ -type E
            return $false
        }
    }
    End{
        $log = Write-VPASTextRecorder -inputval $CommandName -token $token -LogType DIVIDER
    }
}