LoadRunner - Create ICA Files With Powershell

A recent client engagement required the creation of 1000 Citrix ICA files, each using a different user id. Powershell was used to automate this process.

 Step 1 - Obtain An Example ICA File

• Start with an ICA file that works properly.
• Test the ICA file by double clicking to launch the application.

Example ICA File (template.ICA)

[WFClient]
Version=2
HttpBrowserAddress=AAAXXML01
HttpBrowserAddress2=AAAXXML02
EnableSSOnThruICAFile=On
 
[ApplicationServers]
AppToTest=
 
[AppToTest]
Address=AppToTest
InitialProgram=#AppToTest
ClientAudio=On
AudioBandwidthLimit=1
Compress=On
TWIMode=On
DesiredHRES=1024
DesiredVRES=768
DesiredColor=16
TransportDriver=TCP/IP
WinStationDriver=ICA 3.0
BrowserProtocol=HTTPonTCP
UseLocalUserAndPassword=On
AutoLogonAllowed=On
Username=LR0000	
Domain=XXXGlobal
Password=
ClearPassword=password1
EnableSSOnThruICAFile=On
SSOnUserSetting=On
SSOnCredentialType=Any

 Step 2 - Powershell Script Objectives

• Generate multiple ICA files.
• Flexible. Create parameters to allow for customized use.
• Password was not changed, assume all users have the same password (hardcoded in ICA file).
• Result of running will create an ICA directory containing the generated ICA files.

CreateICA.ps1 Contents

# ******************************************************************************
# CreateICA.ica
#
# Creates ICA files based on a source ICA file.  A .dat file is also created
# that contains all the user names.
#
# ------------------------------------------------------------------------------
# Usage (within PowerShell ISE):
#
# cd 
# .\CreateICA.ps1 -iterations 400 -startnumber 750 -source template.ICA 
#                 -replacetext LR0000 -prefix LR -digits 4
#
# Usage (within Command Prompt):
#
# cd 
# powershell .\CreateICA.ps1 -iterations 400 -startnumber 750 -source template.ICA 
#                            -replacetext LR0000 -prefix LR -digits 4
#
# ------------------------------------------------------------------------------
# Creates ICA files by doing the following steps:
#
# 1.  Loop through the given number of iterations and do steps 2-4 for each.
# 2.  Create the new name of the ICA file by taking the source file name and
#     appending a number (combination of startnumber and iteration number).
# 3.  Copy source ICA file to this new ICA file name.
# 4.  Replace text within the ICA file.
#
# ------------------------------------------------------------------------------
# Help
#
# If the script does not run, the ExecutionPolicy might have to be changed.
#
# Get-ExecutionPolicy
# Set-ExecutionPolicy RemoteSigned
# ******************************************************************************

# ------------------------------------------------------------------------------
# Parameters used by script.  Some are defaulted (if not specified) and others
# are required.  The required parameters will display a prompt if not given.
# ------------------------------------------------------------------------------

param
(
    [int]$iterations     = 1,   # Default the number of iterations to 1.
    [int]$startnumber    = 1,   # Default the startnumber to 1.
    [int]$digits         = 4,   # Default the number of digits to 4.
    [string]$source      = $(Read-Host -prompt "The source ICA file to copy"),
    [string]$prefix      = $(Read-Host -prompt "The user name prefix"),
    [string]$replacetext = $(Read-Host -prompt "The text to replace in the source file"),
    [string]$datfile     = "citrix_users.dat",   # Default file created with user ids.
    [string]$paramname   = "pUserName"           # Default parameter name for dat file.
)

# ------------------------------------------------------------------------------
# Get the directory of the CreateICA.ps1 script.
# ------------------------------------------------------------------------------

$scriptpath = split-path -parent $MyInvocation.MyCommand.Definition
cd $scriptpath

# ------------------------------------------------------------------------------
# Output the script parameters.
# ------------------------------------------------------------------------------

"scriptname  = " + $MyInvocation.MyCommand.Name
"scriptpath  = " + $scriptpath
"iterations  = " + $iterations
"startnumber = " + $startnumber
"source      = " + $source
"replacetext = " + $replacetext
"prefix      = " + $prefix
"digits      = " + $digits
"datfile     = " + $datfile
"paramname   = " + $paramname

# ------------------------------------------------------------------------------
# If the ICA sub-directory does not exist, create it.
# ------------------------------------------------------------------------------

if ((Test-Path ICA) -eq $False)
{
    md "ICA"
}

# ------------------------------------------------------------------------------
# The code below will do the following:
#
# 1.  Create the .dat file to contain the user ids.
# 2.  Create the ICA file name by combining the source ICA file name with a
#     formatted sequential number.
# 3.  Copy the source ICA file to the new ICA file.
# 4.  Replace the user name text in the ICA file with a unique value.
# ------------------------------------------------------------------------------

$split = $source.split(".")
$source = $split[0]
$format = "{0:D" + $digits + "}"

$stream = [System.IO.StreamWriter] ($scriptpath + "\" + $datfile)
$stream.WriteLine($paramname)

for ($i=0; $i -lt $iterations; $i++)
{
    $uniquepart = $format -f ($i + $startnumber)
    $newname = $prefix + $uniquepart
    $newpath = $source + $uniquepart + ".ICA"
    $newpath = "ICA\" + $newpath
    
    Copy-Item ($source + ".ica") $newpath
    (Get-Content $newpath) | Foreach-Object {$_ -replace $replacetext, $newname} | Set-Content $newpath
    $stream.WriteLine($newname)
    
    "Processed : " + $newpath
}

$stream.close()

# ******************************************************************************

Directory Contents

 Moving Forward

• Modify the Powershell script to handle any type of file.
• If the users are not sequential, supply a list of user names to use (instead of calculating).
• Add more error handling to the Powershell script.

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