Update-CalendarPermissions.ps1
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Script
function Update-CalendarPermission {
<#
Update-CalendarPermission -Identify <mailbox> -User <xxx> -Permission <permission>
#>
param
(
[Parameter(Mandatory = $true,
HelpMessage = "Enter a mailbox where you apply permission to")]
[ValidateNotNullOrEmpty()]
[string]$Identity,
[Parameter(Mandatory = $true, HelpMessage = "Enter a user/group who will be granted the permission syntax domain\xxx might be needed")]
[ValidateNotNullOrEmpty()]
[string]$User,
[parameter(Mandatory = $true, HelpMessage = "Enter a valid permission set")]
[ValidateSet("ReadItems", "CreateItems", "EditOwnedItems", "DeleteOwnedItems", "EditAllItems", "DeleteAllItems", "CreateSubfolders", "FolderOwner", "FolderContact", "FolderVisible", "None", "Owner", "PublishingEditor", "Editor", "PublishingAuthor", "Author", "NonEditingAuthor", "Reviewer", "Contributor", "AvailabilityOnly", "LimitedDetails", "Remove")]
[string]$Permission
)
#Add Exchange 2010 Management Shell if needed
if (! (Get-PSSnapin Microsoft.Exchange.Management.PowerShell.E2010 -ErrorAction:SilentlyContinue)) {
Add-PSSnapin Microsoft.Exchange.Management.PowerShell.E2010 -ErrorAction:Stop
}
$MBX = Get-Mailbox $identity
$CalendarName = (Get-MailboxFolderStatistics -Identity $MBX.alias -FolderScope Calendar | Select-Object -First 1).Name
$folderID = $MBX.alias + ':\' + $CalendarName
if ($Permission -eq 'remove') {
# special case, remove permission from user
Remove-MailboxFolderPermission -Identity $folderID -User $User -Confirm:$False
}
else {
$i = @(Get-MailboxFolderPermission -Identity $folderID -User $User -ErrorAction SilentlyContinue).count
if ($i -eq 0) {
# not in ACL, add permission
Add-MailboxFolderPermission -Identity $folderID -User $User -AccessRights $Permission > $Null
}
else {
# user is already in ACL, change permission
Set-MailboxFolderPermission -Identity $folderID -User $User -AccessRights $Permission
}
# display new permission for $user
Get-MailboxFolderPermission -Identity $folderID -User $User
}
}
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