Deletes sharing links for folder, file and item

Summary

Sharing links can lead to oversharing, especially when default site sharing settings haven’t been updated to ‘People with existing access.’ To address this, consider using a utility script that deletes sharing links at the folder, file, and item levels. This approach can help mitigate oversharing issues during the Copilot for M365 rollout.

Example Screenshot

Prerequisites

The user account that runs the script must have access to the SharePoint Online site.

PnP PowerShell

$siteUrl = Read-Host -Prompt "Enter site collection URL";
$dateTime = (Get-Date).toString("dd-MM-yyyy-hh-ss")
$invocation = (Get-Variable MyInvocation).Value
$directorypath = Split-Path $invocation.MyCommand.Path
$fileName = "SharingLinkDeletionReport-" + $dateTime + ".csv"
$ReportOutput = $directorypath + "\Logs\"+ $fileName

$global:Results = @();

#Exclude certain libraries
$ExcludedLists = @("Form Templates", "Preservation Hold Library", "Site Assets", "Images", "Pages", "Settings", "Videos","Timesheet"
    "Site Collection Documents", "Site Collection Images", "Style Library", "AppPages", "Apps for SharePoint", "Apps for Office")

Function QueryDeleteSharingLinksByObject($_web,$_object,$_type,$_relativeUrl,$_siteUrl,$_siteTitle,$_listTitle)
{
  $roleAssignments = Get-PnPProperty -ClientObject $_object -Property RoleAssignments
  
  foreach($roleAssign in $roleAssignments){
      Get-PnPProperty -ClientObject $roleAssign -Property RoleDefinitionBindings,Member;
      #Sharing link is in the format SharingLinks.03012675-2057-4d1d-91e0-8e3b176edd94.OrganizationView.20d346d3-d359-453b-900c-633c1551ccaa
    If ($roleAssign.Member.Title -like "SharingLinks*")
      {
        $global:Results += New-Object PSObject -property $([ordered]@{
            object= $_object.Title
            type = $_type          
            relativeURL = $_relativeURL
            siteUrl = $_siteUrl 
            siteTitle = $_siteTitle
            listTitle = $_listTitle 
            sharinglink = $roleAssign.Member.Title
        })
       Remove-PnPGroup -identity $roleAssign.Member.Title -force
    }
   }
}

  
Connect-PnPOnline -Url $siteUrl -Interactive

$web= Get-PnPWeb

Write-Host "Processing site $siteUrl"  -Foregroundcolor "Red"; 

$ll = Get-PnPList -Includes BaseType, Hidden, Title,HasUniqueRoleAssignments,RootFolder | Where-Object {$_.Hidden -eq $False -and $_.Title -notin $ExcludedLists } #$_.BaseType -eq "DocumentLibrary" 
  Write-Host "Number of lists $($ll.Count)";

  foreach($list in $ll)
  {
    $listUrl = $list.RootFolder.ServerRelativeUrl;       
    $listTitle = $list.Title; 
    #Get all list items in batches
    $ListItems = Get-PnPListItem -List $list -PageSize 2000 
        #Iterate through each list item
        ForEach($item in $ListItems)
        {
            $ItemCount = $ListItems.Count
            #Check if the Item has unique permissions
            $HasUniquePermissions = Get-PnPProperty -ClientObject $Item -Property "HasUniqueRoleAssignments"
            If($HasUniquePermissions)
            {       
                #Get Shared Links
                if($list.BaseType -eq "DocumentLibrary")
                {
                    $type= "File";
                    $fileUrl = $item.FieldValues.FileRef;
                }
                else
                {
                    $type= "Item";
                    $fileUrl = "$siteurl/lists/$listTitle/AllItems.aspx?FilterField1=ID&FilterValue1=$($item.id)"
                }
                QueryDeleteSharingLinksByObject $web $item $Type $fileUrl $siteUrl $web.Title $listTitle;
            }
        }
    }
 
  $global:Results | Export-CSV $ReportOutput -NoTypeInformation
Write-host -f Green "Sharing Links for user generated Successfully!"

Check out the PnP PowerShell to learn more at: https://aka.ms/pnp/powershell

The way you login into PnP PowerShell has changed please read PnP Management Shell EntraID app is deleted : what should I do ?

Source Credit

Sample first appeared on Deletion of sharing links with PowerShell

Contributors

Author(s)
Reshmee Auckloo

Disclaimer

THESE SAMPLES ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.