22 March 2017

PowerShell: Disable Cisco Jabber History

Posted By: Mick Pletcher - 3:49 PM

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I published a blog posting on how to securely delete the Cisco Jabber conversation using the PowerShell script I had written. It occurred to me that the .DB file which contains the conversations could be prevented from recording in the first place. This is done by setting the .DB file to read-only. In order to do this, there is a specific process that needs to take place, especially if this is being done to systems where conversations have already taken place, otherwise you would have old conversations permanently left in the .DB file.

The .DB file needs to be deleted and then recreated before setting it to read-only. This process can only occur after a user is logged in because of the .DB file is stored within the user profile. Jabber is first closed out. Once closed, the .DB file is deleted. Jabber is then opened back up to recreate the .DB file. Jabber is once again closed. The .DB file is not set to read-only and Jabber is reopened once again.

After I fomulated this process, I used SAPIEN's PowerShell Studio to write the code. PowerShell Studio made writing this a breeze and as you can see in the code, it is very clean and well documented due to the app.

Here is a video clip of the script running on my own machine.


The script can be implemented through a package in SCCM or it can be setup to execute from a share as a run once registry entry when the user logs in the first time. SCCM is probably the best option as it does not execute the script immediately. It jabber has not been launched the first time before the script runs, the script will fail because of the .DB file will not be present. Another issue I encountered was executing the script. It must be executed in the 32-bit PowerShell. If executed in 64-Bit PowerShell, the add/remove programs lookup will fail.

You can download the script from my GitHub site located here.


 <#  
      .SYNOPSIS  
           Disable Cisco Jabber Chat History  
        
      .DESCRIPTION  
           This script will disable the Jabber chat history by setting the .DB file to read-only. It begins by killing the Jabber task, deleting the .DB file, reopening Jabber, and then setting the .DB file to read-only. The script uses this process because if the old .DB file has not been deleted before setting it to read-only, the stored conversations will be there permanently. Since the .DB file is stored in the user profile, this cannot be done in the build.  
        
      .NOTES  
           ===========================================================================  
           Created with:     SAPIEN Technologies, Inc., PowerShell Studio 2016 v5.3.131  
           Created on:       03/21/2017 4:21 PM  
           Created by:       Mick Pletcher  
           Filename:         CiscoJabberChatCleanup.ps1  
           ===========================================================================  
 #>  
   
 [CmdletBinding()]  
 param ()  
   
 function Close-Process {  
 <#  
      .SYNOPSIS  
           Stop ProcessName  
        
      .DESCRIPTION  
           Kills a ProcessName and verifies it was stopped while reporting it back to the screen.  
        
      .PARAMETER ProcessName  
           Name of ProcessName to kill  
        
      .EXAMPLE  
           PS C:\> Close-ProcessName -ProcessName 'Value1'  
        
      .NOTES  
           Additional information about the function.  
 #>  
        
      [CmdletBinding()][OutputType([boolean])]  
      param  
      (  
           [ValidateNotNullOrEmpty()][string]$ProcessName  
      )  
        
      $Process = Get-Process -Name $ProcessName -ErrorAction SilentlyContinue  
      If ($Process -ne $null) {  
           $Output = "Stopping " + $Process.Name + " process....."  
           Stop-Process -Name $Process.Name -Force -ErrorAction SilentlyContinue  
           Start-Sleep -Seconds 1  
           $TestProcess = Get-Process $ProcessName -ErrorAction SilentlyContinue  
           If ($TestProcess -eq $null) {  
                $Output += "Success"  
                Write-Host $Output  
                Return $true  
           } else {  
                $Output += "Failed"  
                Write-Host $Output  
                Return $false  
           }  
      } else {  
           Return $true  
      }  
 }  
   
 function Get-RelativePath {  
 <#  
      .SYNOPSIS  
           Get the relative path  
        
      .DESCRIPTION  
           Returns the location of the currently running PowerShell script  
        
      .NOTES  
           Additional information about the function.  
 #>  
        
      [CmdletBinding()][OutputType([string])]  
      param ()  
        
      $Path = (split-path $SCRIPT:MyInvocation.MyCommand.Path -parent) + "\"  
      Return $Path  
 }  
   
 function Open-Application {  
 <#  
      .SYNOPSIS  
           Open Application  
        
      .DESCRIPTION  
           Opens an applications  
        
      .PARAMETER Executable  
           A description of the Executable parameter.  
        
      .PARAMETER ApplicationName  
           Display Name of the application  
        
      .PARAMETER Process  
           Application Process Name  
        
      .EXAMPLE  
           PS C:\> Open-Application -Executable 'Value1'  
        
      .NOTES  
           Additional information about the function.  
 #>  
        
      [CmdletBinding()]  
      param  
      (  
           [string]$Executable,  
           [ValidateNotNullOrEmpty()][string]$ApplicationName  
      )  
        
      $Architecture = Get-Architecture  
      $Uninstall = Get-ChildItem -Path REGISTRY::"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall"  
      If ($Architecture -eq "64-bit") {  
           $Uninstall += Get-ChildItem -Path REGISTRY::"HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall"  
      }  
      $InstallLocation = ($Uninstall | ForEach-Object { Get-ItemProperty $_.PsPath } | Where-Object { $_.DisplayName -eq $ApplicationName }).InstallLocation  
      If ($InstallLocation[$InstallLocation.Length - 1] -ne "\") {  
           $InstallLocation += "\"  
      }  
      $Process = ($Executable.Split("."))[0]  
      $Output = "Opening $ApplicationName....."  
      Start-Process -FilePath $InstallLocation$Executable -ErrorAction SilentlyContinue  
      Start-Sleep -Seconds 5  
      $NewProcess = Get-Process $Process -ErrorAction SilentlyContinue  
      If ($NewProcess -ne $null) {  
           $Output += "Success"  
      } else {  
           $Output += "Failed"  
      }  
      Write-Output $Output  
 }  
   
 function Remove-ChatFiles {  
 <#  
      .SYNOPSIS  
           Delete Jabber Chat Files  
        
      .DESCRIPTION  
           Deletes Jabber chat files located at %USERNAME%\AppData\Local\Cisco\Unified Communications\Jabber\CSF\History and verifies they were deleted  
        
      .EXAMPLE  
           PS C:\> Remove-ChatFiles  
        
      .NOTES  
           Additional information about the function.  
 #>  
        
      [CmdletBinding()]  
      param ()  
        
      #Get Jabber Chat history files  
      $ChatHistoryFiles = Get-ChildItem -Path $env:USERPROFILE'\AppData\Local\Cisco\Unified Communications\Jabber\CSF\History' -Filter *.db  
      If ($ChatHistoryFiles -ne $null) {  
           foreach ($File in $ChatHistoryFiles) {  
                $Output = "Deleting " + $File.Name + "....."  
                Remove-Item -Path $File.FullName -Force | Out-Null  
                If ((Test-Path $File.FullName) -eq $false) {  
                     $Output += "Success"  
                } else {  
                     $Output += "Failed"  
                }  
           }  
           Write-Output $Output  
      } else {  
           $Output = "No Chat History Present"  
           Write-Output $Output  
      }  
 }  
   
 function Remove-MyJabberFilesFolder {  
 <#  
      .SYNOPSIS  
           Delete MyJabberFiles Folder  
        
      .DESCRIPTION  
           Delete the MyJabberFiles folder stores under %USERNAME%\documents and verifies it was deleted.  
        
      .EXAMPLE  
           PS C:\> Remove-MyJabberFilesFolder  
        
      .NOTES  
           Additional information about the function.  
 #>  
        
      [CmdletBinding()]  
      param ()  
        
      $MyJabberFilesFolder = Get-Item $env:USERPROFILE'\Documents\MyJabberFiles' -ErrorAction SilentlyContinue  
      If ($MyJabberFilesFolder -ne $null) {  
           $Output = "Deleting " + $MyJabberFilesFolder.Name + "....."  
           Remove-Item -Path $MyJabberFilesFolder -Recurse -Force | Out-Null  
           If ((Test-Path $MyJabberFilesFolder.FullName) -eq $false) {  
                $Output += "Success"  
           } else {  
                $Output += "Failed"  
           }  
           Write-Output $Output  
      } else {  
           $Output = "No MyJabberFiles folder present"  
           Write-Output $Output  
      }  
 }  
   
 function Set-DBFilePermissions {  
 <#  
      .SYNOPSIS  
           Set .DB File Permission  
        
      .DESCRIPTION  
           Make the .DB file read-only  
        
      .EXAMPLE  
                     PS C:\> Set-DBFilePermissions  
        
      .NOTES  
           Additional information about the function.  
 #>  
        
      [CmdletBinding()]  
      param ()  
        
      #Get list of chat history files  
      $ChatHistoryFiles = Get-ChildItem -Path $env:USERPROFILE'\AppData\Local\Cisco\Unified Communications\Jabber\CSF\History' -Filter *.db  
      foreach ($File in $ChatHistoryFiles) {  
           #Set .DB file to read-only  
           $Output = "Setting " + $File.Name + " to Read-Only....."  
           $ReadOnly = Get-ItemPropertyValue -Path $File.FullName -Name IsReadOnly  
           If (($ReadOnly) -eq $false) {  
                Set-ItemProperty -Path $File.FullName -Name IsReadOnly -Value $true  
                $ReadOnly = Get-ItemPropertyValue -Path $File.FullName -Name IsReadOnly  
                If (($ReadOnly) -eq $true) {  
                     $Output += "Success"  
                } else {  
                     $Output += "Failed"  
                }  
           } else {  
                $Output += "Success"  
           }  
           Write-Output $Output  
      }  
 }  
   
 Clear-Host  
 #Kill Cisco Jabber Process  
 $JabberClosed = Close-Process -ProcessName CiscoJabber  
 #Delete .DB files from %USERNAME%\AppData\Local\Cisco\Unified Communications\Jabber\CSF\History  
 Remove-ChatFiles  
 #Delete %USERNAME%\documents\MyJabberFiles directory  
 Remove-MyJabberFilesFolder  
 #Reopen Jabber if it was open  
 If ($JabberClosed -eq $true) {  
      Open-Application -ApplicationName "Cisco Jabber" -Executable CiscoJabber.exe  
 }  
 $JabberClosed = Close-Process -ProcessName CiscoJabber  
 #Set the .DB file to read-only  
 Set-DBFilePermissions  
 #Reopen Jabber  
 If ($JabberClosed -eq $true) {  
      Open-Application -ApplicationName "Cisco Jabber" -Executable CiscoJabber.exe  
 }  
   

About Mick Pletcher

My blog is here to help solve issues I have encountered and solved, publish scripts I have written, and educate others in understanding areas that are not well covered

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