Param(
  [string]$oldvCOServer="localhost",
  [string]$oldvCOUser="vcoadmin",
  [string]$oldvCOPass="vcoadmin",
  [string]$oldvCOCategory="MyOldWorkflows",
  [string]$newvCOServer="localhost",
  [string]$newvCOUser="vcoadmin",
  [string]$newvCOPass="vcoadmin",
  [string]$newvCOCategory="MyWorkflows",
  [string]$TempFolder
)



# vCO Port
$vcoPort="8281"

# Type to handle self-signed certificates
add-type @"
    using System.Net;
    using System.Security.Cryptography.X509Certificates;
    public class TrustAllCertsPolicy : ICertificatePolicy {
        public bool CheckValidationResult(
            ServicePoint srvPoint, X509Certificate certificate,
            WebRequest request, int certificateProblem) {
            return true;
        }
    }
"@
[System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy
[byte[]]$CRLF = 13, 10

function Get-AsciiBytes([String] $str) {
    return [System.Text.Encoding]::ASCII.GetBytes($str)            
}

function ConvertTo-Base64($string) {
   $bytes  = [System.Text.Encoding]::UTF8.GetBytes($string);
   $encoded = [System.Convert]::ToBase64String($bytes); 

   return $encoded;
}

clear
##############  EXPORT OLD WORKFLOWS ##############################
Write-Host "Beginning Export Routine" -ForegroundColor Black -BackgroundColor Yellow
Write-Host ""
# build uri
$uri = "https://"+$oldvCOServer+":"+$vCOPort+"/vco/api/workflows/?conditions=categoryName="+$oldvCOCategory

# Authentication token or old server
$token = ConvertTo-Base64("$($oldvCOUser):$($oldvCOPass)");
$auth = "Basic $($token)";
$header = @{"Authorization"= $auth; };   

#execute API call
$workflows = Invoke-RestMethod -URi $uri -Method Get -ContentType "application/xml" -Headers $header
Write-Host "Exporting $($workflows.total) workflows from $oldvCOCategory"
Write-Host "-------------------------------------------------------------------------------------------"
#loop through each workflow and export to TempFolder
foreach ($href in $workflows.link.href)
{
    #retrieve information about the specific workflow
    $header = @{"Authorization"= $auth; };   
    $workflow = Invoke-RestMethod -URi $href -Method Get -ContentType "application/xml" -Headers $header
      
    
    #replace all spaces in workflow name
    $workflowname = [System.Text.RegularExpressions.Regex]::Replace($($workflow.name),"[^1-9a-zA-Z_]","")
    $filename = $TempFolder + $workflowname + ".workflow"
    # setup new header
    $header = @{"Authorization"= $auth;
                "Accept"="application/zip"; }; 
    Write-Host "Exporting $($workflow.name) to $filename - " -NoNewline
    Invoke-RestMethod -URi $href -Method Get -ContentType "application/xml" -Headers $header -OutFile $filename
    Write-Host "Done" -ForegroundColor Green  
}
Write-Host ""
Write-Host "Export Routine Complete" -ForegroundColor Black -BackgroundColor Yellow
##################################################################


##############  IMPORT WORKFLOWS ##############################
Write-Host ""
Write-Host ""
Write-Host "Import Routines to new server" -ForegroundColor Black -BackgroundColor Yellow
Write-Host ""

#Generate auth for new vCO Server
$token = ConvertTo-Base64("$($newvCOUser):$($newVCOPass)");
$auth = "Basic $($token)";

#Get Category ID
$header = @{"Authorization"= $auth; };   
$uri = "https://"+$newvCOServer+":"+$vCOPort+"/vco/api/categories/"
$categories = Invoke-RestMethod -URi $uri -Method Get -Headers $header -ContentType "application/xml" 
foreach ($att in $categories.link)
{
    if ($att.attributes.value -eq "HPEDSB")
    {
        foreach ($newatt in $att.attributes )
        {
            if ($newatt.name -eq "id")
            {
                $categoryID = $newatt.value
            }
        }
    }
}

$impUrl = "https://$($newvCOServer):$($vcoPort)/vco/api/workflows?categoryId=$($categoryId)&overwrite=true";
$header = @{"Authorization"= $auth;
            "Accept"= "application/zip";
            "Accept-Encoding"= "gzip,deflate,sdch";};    

$workflows = Get-ChildItem $TempFolder -Filter *.workflow
Write-Host "Importing $($workflows.count) workflows to $newvCOCategory"
Write-Host "-------------------------------------------------------------------------------------------"
foreach ($workflow in $workflows)
{
    Write-Host "Importing $($workflow.name) - " -NoNewline
    $body = New-Object System.IO.MemoryStream
    $boundary = [Guid]::NewGuid().ToString().Replace('-','')
    $ContentType = 'multipart/form-data; boundary=' + $boundary
    $b2 = Get-AsciiBytes ('--' + $boundary)
    $body.Write($b2, 0, $b2.Length)
    $body.Write($CRLF, 0, $CRLF.Length)           
    $b = (Get-AsciiBytes ('Content-Disposition: form-data; name="categoryId"'))
    $body.Write($b, 0, $b.Length)
    $body.Write($CRLF, 0, $CRLF.Length)
    $body.Write($CRLF, 0, $CRLF.Length)
    $b = (Get-AsciiBytes $categoryId)
    $body.Write($b, 0, $b.Length)
    $body.Write($CRLF, 0, $CRLF.Length)
    $body.Write($b2, 0, $b2.Length)
    $body.Write($CRLF, 0, $CRLF.Length)     
    $b = (Get-AsciiBytes ('Content-Disposition: form-data; name="file"; filename="$($workflow.Name)";'))
    $body.Write($b, 0, $b.Length)
    $body.Write($CRLF, 0, $CRLF.Length)            
    $b = (Get-AsciiBytes 'Content-Type:application/octet-stream')
    $body.Write($b, 0, $b.Length)
    $body.Write($CRLF, 0, $CRLF.Length)
    $body.Write($CRLF, 0, $CRLF.Length)
    $b = [System.IO.File]::ReadAllBytes($workflow.FullName)
    $body.Write($b, 0, $b.Length)
    $body.Write($CRLF, 0, $CRLF.Length)
    $body.Write($b2, 0, $b2.Length)
    $b = (Get-AsciiBytes '--');
    $body.Write($b, 0, $b.Length);
    $body.Write($CRLF, 0, $CRLF.Length);

    $header = @{"Authorization"= $auth;
            "Accept"= "application/zip";
            "Accept-Encoding"= "gzip,deflate,sdch";};    
    Invoke-RestMethod -Method POST -Uri $impUrl -ContentType $ContentType -Body $body.ToArray() -Headers $header
    Write-Host "Done" -foregroundcolor Green
}


Write-Host ""
Write-Host "Import Routine complete" -ForegroundColor Black -BackgroundColor Yellow
##################################################################