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| Connect-MgGraph -Scopes "User.Read.All", "Group.Read.All", "Domain.ReadWrite.All", "AuditLog.Read.All" | |
| $guests = Get-MgUser -Filter "userType eq 'Guest'" -ExpandProperty "memberOf" -Property "createdDateTime", "signInActivity", "displayName", "userPrincipalName", "mail", "userType" | |
| [array]$guestsReport = @() | |
| $guest = $guests | Select-Object -First 1 | |
| foreach($guest in $guests) { | |
| "{0} [{1}] (groups: {2}); Created = {3}; Last Sign In = {4}" -f $guest.DisplayName, $guest.userPrincipalName, $guest.memberOf.Count, $guest.createdDateTime, $guest.signInActivity.lastSignInDateTime | |
| $lastSignIn = $null | |
| if($guest.signInActivity -and $guest.signInActivity.lastSignInDateTime) { | |
| $lastSignIn = $guest.signInActivity.lastSignInDateTime.ToString() | |
| } | |
| $guestInfo = [PSCustomObject]@{ | |
| ObjectId = $guest.Id | |
| DisplayName = $guest.DisplayName | |
| UserPrincipalName = $guest.userPrincipalName | |
| Created = $guest.createdDateTime.ToString() | |
| LastSignIn = $lastSignIn | |
| UserType = $guest.UserType | |
| Groups = @() | |
| } | |
| $memberOf = $guest.memberOf | Select-Object -First 1 | |
| foreach ($memberOf in $guest.memberOf) { | |
| $groupInfo = [PSCustomObject]@{ | |
| Id = $memberOf.Id | |
| Name = $group.displayName | |
| Owners = @() | |
| } | |
| $group = Get-MgGroup -GroupId $memberOf.Id -ExpandProperty "owners" | |
| " * {0} (owners: {1})" -f $group.DisplayName, $group.owners.Count | |
| $ownerId = $group.owners | Select-Object -First 1 | |
| foreach($ownerId in $group.owners) { | |
| $groupInfo.Owners += [PSCustomObject]@{ | |
| Id = $owner.Id | |
| DisplayName = $owner.DisplayName | |
| UserPrincipalName = $owner.userPrincipalName | |
| } | |
| $owner = Get-MgUser -UserId $ownerId.Id | |
| " - {0} [Id: {1}]" -f $owner.displayName, $owner.Id | |
| } | |
| $guestInfo.Groups += $groupInfo | |
| } | |
| $guestsReport += $guestInfo | |
| } | |
| $guestsReport | ConvertTo-Json -Depth 10 | Out-File "guests.json" |
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