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Default Calendar permission Powershell Gui for Exchange 2007

****Note if your using Exchange 2010 SP1 see http://gsexdev.blogspot.com/2011/01/default-calendar-permission-powershell.html which is a version that use the new Exchange Management Shell cmdlets *****

This is a sample script that uses the calendar permission helper class I posted here. This script basically presents a Winform that can be used to firstly enumerate all the default calendar permissions of all mailboxes on an Exchange Server and then you can do a multiple select and set a new default calendar permission level for one or more mailboxes. The script gives the option of specifying the authentication setting to use and the Cas Server you want to use. By default it tries to locate a cas server using the get- WebServicesVirtualDirectory cmdlet eg

[array]$calurls = Get-WebServicesVirtualDirectory
$strRootURI = $calurls[0].InternalUrl.AbsoluteUri
$strRootURI

Using EWS impersonation allows you to set the calendar setting on a mailbox that the account running the script doesn’t have permissions to access to setup impersonation in EWS have a look at this from the Exchange SDK. The Specify Credentials check box allows you to specify the user credential to use when running the EWS operations. This script does rely on the Exchange-cmdlet's get-mailbox and get-user so it needs to be run from within the Exchange Management Shell.

If you select to use Exchange Impersonation the script will check to see if the account its going to impersonate first is disabled if it is then impersonation will not be use because you can’t impersonate a disable account.

To use the script you need to download the library from the other post as I marked in that post this code itself is very untested and I don’t consider it stable and or safe for use in a production environment I can only recommend that you use it in a test/dev environment and as a guide to building your own applications. The library needs to be located in the directory referenced in the following line

[void][Reflection.Assembly]::LoadFile("c:\temp\EWSUtil.dll")

I’ve put a download of this script here the code itself looks like

Warning this code may cause global warming if you use the Air con when you don't need to

[System.Reflection.Assembly]::LoadWithPartialName("System.Drawing")
[System.Reflection.Assembly]::LoadWithPartialName("System.windows.forms")
[void][Reflection.Assembly]::LoadFile("c:\temp\EWSUtil.dll")
[array]$calurls = Get-WebServicesVirtualDirectory
$strRootURI = $calurls[0].InternalUrl.AbsoluteUri
$strRootURI

function GetPerms(){
$logTable.clear()


get-mailbox -server $snServerNameDrop.SelectedItem.ToString() -ResultSize Unlimited | foreach-object{$colnum
$defperm = ""
$unUsername = ""
$pnPpassword = ""
$dnDomainName = ""
$inInpersonate = $false
if ($seAuthCheck.Checked -eq $true){
$unUsername = $unUserNameTextBox.Text
$pnPpassword = $unPasswordTextBox.Text
$dnDomainName = $unDomainTextBox.Text
}
if ($seImpersonationCheck.Checked -eq $true){
$uoUser = [ADSI]("LDAP://" + $_.DistinguishedName.ToString())
if ($uoUser.PSBase.InvokeGet("AccountDisabled") -ne $true){$inInpersonate = $true }

}
$calutil = new-object EWSUtil.CalendarUtil($_.WindowsEmailAddress,$inInpersonate,$unUsername,$pnPpassword,$dnDomainName,$unCASUrlTextBox.text)
for ($cpint=0;$cpint -lt $calutil.CalendarDACL.Count; $cpint++){
if ($calutil.CalendarDACL[$cpint].UserId.DistinguishedUserSpecified -eq $true){
if ($calutil.CalendarDACL[$cpint].UserId.DistinguishedUser -eq [EWSUtil.EWS.DistinguishedUserType]::Default){
write-host "Processing : " + $_.WindowsEmailAddress
$defperm = $calutil.enumOutlookRole($calutil.CalendarDACL[$cpint])
}

}
}
$logTable.rows.add($_.DisplayName,$_.WindowsEmailAddress,$defperm)
}
$dgDataGrid.DataSource = $logTable

}


Function UpdatePerms{
$unUsername = ""
$pnPpassword = ""
$dnDomainName = ""
$inInpersonate = $false
if ($seAuthCheck.Checked -eq $true){
$unUsername = $unUserNameTextBox.Text
$pnPpassword = $unPasswordTextBox.Text
$dnDomainName = $unDomainTextBox.Text
}
if ($seImpersonationCheck.Checked -eq $true){
$mbchk = get-mailbox $dgDataGrid.Rows[$dgDataGrid.CurrentCell.RowIndex].Cells[1].Value
$uoUser = [ADSI]("LDAP://" + $mbchk.DistinguishedName.ToString())
if ($uoUser.PSBase.InvokeGet("AccountDisabled") -ne $true){$inInpersonate = $true }

}
if ($dgDataGrid.SelectedRows.Count -eq 0){
$mbtoSet = $dgDataGrid.Rows[$dgDataGrid.CurrentCell.RowIndex].Cells[1].Value
$calutil = new-object EWSUtil.CalendarUtil($mbtoSet,$inInpersonate,$unUsername,$pnPpassword,$dnDomainName,$unCASUrlTextBox.text)
switch ($npNewpermDrop.Text){
"None" {$calutil.CalendarDACL.Add($calutil.NonePermissions("default"))}
"FreeBusyTimeOnly" {$calutil.CalendarDACL.Add($calutil.FreeBusyTimeOnly("default"))}
"FreeBusyTimeAndSubjectAndLocation" {$calutil.CalendarDACL.Add($calutil.FreeBusyTimeAndSubjectAndLocation("default"))}
"Reviewer" {$calutil.CalendarDACL.Add($calutil.Reviewer("default"))}
"Contributer" {$calutil.CalendarDACL.Add($calutil.Contributer("default"))}
"Author" {$calutil.CalendarDACL.Add($calutil.AuthorPermissions("default"))}
"NonEditingAuthor" {$calutil.CalendarDACL.Add($calutil.NonEditingAuthorPermissions("default"))}
"PublishingAuthor" {$calutil.CalendarDACL.Add($calutil.PublishingAuthorPermissions("default"))}
"Author" {$calutil.CalendarDACL.Add($calutil.AuthorPermissions("default"))}
"Editor" {$calutil.CalendarDACL.Add($calutil.EditorPermissions("default"))}
"PublishingEditor"{$calutil.CalendarDACL.Add($calutil.PublishingEditorPermissions("default"))}
}
$calutil.update()
write-host "Permission updated" + $npNewpermDrop.Text
}
else{
$lcLoopCount = 0
while ($lcLoopCount -le ($dgDataGrid.SelectedRows.Count-1)) {
$mbtoSet = $dgDataGrid.SelectedRows[$lcLoopCount].Cells[1].Value
$calutil = new-object EWSUtil.CalendarUtil($mbtoSet,$inInpersonate,$unUsername,$pnPpassword,$dnDomainName,$unCASUrlTextBox.text)
switch ($npNewpermDrop.Text){
"None" {$calutil.CalendarDACL.Add($calutil.NonePermissions("default"))}
"FreeBusyTimeOnly" {$calutil.CalendarDACL.Add($calutil.FreeBusyTimeOnly("default"))}
"FreeBusyTimeAndSubjectAndLocation" {$calutil.CalendarDACL.Add($calutil.FreeBusyTimeAndSubjectAndLocation("default"))}
"Reviewer" {$calutil.CalendarDACL.Add($calutil.Reviewer("default"))}
"Contributer" {$calutil.CalendarDACL.Add($calutil.Contributer("default"))}
"Author" {$calutil.CalendarDACL.Add($calutil.AuthorPermissions("default"))}
"NonEditingAuthor" {$calutil.CalendarDACL.Add($calutil.NonEditingAuthorPermissions("default"))}
"PublishingAuthor" {$calutil.CalendarDACL.Add($calutil.PublishingAuthorPermissions("default"))}
"Author" {$calutil.CalendarDACL.Add($calutil.AuthorPermissions("default"))}
"Editor" {$calutil.CalendarDACL.Add($calutil.EditorPermissions("default"))}
"PublishingEditor"{$calutil.CalendarDACL.Add($calutil.PublishingEditorPermissions("default"))}
}
$calutil.update()
write-host "Permission updated" + $npNewpermDrop.Text
$lcLoopCount += 1
}
}
write-host "end PermUpdate"
write-host "Refresh Perms"
GetPerms
}


$form = new-object System.Windows.Forms.form
$form.Text = "Calender Permission Enum Tool"
$Dataset = New-Object System.Data.DataSet
$logTable = New-Object System.Data.DataTable
$logTable.TableName = "ActiveSyncLogs"
$logTable.Columns.Add("DisplayName");
$logTable.Columns.Add("EmailAddress");
$logTable.Columns.Add("Default-Permissions");



# Add Server DropLable
$snServerNamelableBox = new-object System.Windows.Forms.Label
$snServerNamelableBox.Location = new-object System.Drawing.Size(10,20)
$snServerNamelableBox.size = new-object System.Drawing.Size(70,20)
$snServerNamelableBox.Text = "ServerName"
$form.Controls.Add($snServerNamelableBox)

# Add Server Drop Down
$snServerNameDrop = new-object System.Windows.Forms.ComboBox
$snServerNameDrop.Location = new-object System.Drawing.Size(80,20)
$snServerNameDrop.Size = new-object System.Drawing.Size(130,30)
get-exchangeserver | ForEach-Object{$snServerNameDrop.Items.Add($_.Name)}
$form.Controls.Add($snServerNameDrop)


# Add Get Perms Button

$gpgetperms = new-object System.Windows.Forms.Button
$gpgetperms.Location = new-object System.Drawing.Size(220,20)
$gpgetperms.Size = new-object System.Drawing.Size(85,23)
$gpgetperms.Text = "Enum Perms"
$gpgetperms.Add_Click({GetPerms})
$form.Controls.Add($gpgetperms)

# Add New Permission Drop Down
$npNewpermDrop = new-object System.Windows.Forms.ComboBox
$npNewpermDrop.Location = new-object System.Drawing.Size(350,20)
$npNewpermDrop.Size = new-object System.Drawing.Size(190,30)
$npNewpermDrop.Items.Add("None")
$npNewpermDrop.Items.Add("FreeBusyTimeOnly")
$npNewpermDrop.Items.Add("FreeBusyTimeAndSubjectAndLocation")
$npNewpermDrop.Items.Add("Reviewer")
$npNewpermDrop.Items.Add("Contributer")
$npNewpermDrop.Items.Add("Author")
$npNewpermDrop.Items.Add("NonEditingAuthor")
$npNewpermDrop.Items.Add("PublishingAuthor")
$npNewpermDrop.Items.Add("Editor")
$npNewpermDrop.Items.Add("PublishingEditor")
$form.Controls.Add($npNewpermDrop)

# Add Apply Button

$exButton = new-object System.Windows.Forms.Button
$exButton.Location = new-object System.Drawing.Size(550,20)
$exButton.Size = new-object System.Drawing.Size(60,20)
$exButton.Text = "Apply"
$exButton.Add_Click({UpdatePerms})
$form.Controls.Add($exButton)

# New setting Group Box

$OfGbox = new-object System.Windows.Forms.GroupBox
$OfGbox.Location = new-object System.Drawing.Size(320,0)
$OfGbox.Size = new-object System.Drawing.Size(300,50)
$OfGbox.Text = "New Permission Settings"
$form.Controls.Add($OfGbox)

# Add Impersonation Clause

$esImpersonationlableBox = new-object System.Windows.Forms.Label
$esImpersonationlableBox.Location = new-object System.Drawing.Size(10,50)
$esImpersonationlableBox.Size = new-object System.Drawing.Size(130,20)
$esImpersonationlableBox.Text = "Use EWS Impersonation"
$form.Controls.Add($esImpersonationlableBox)

$seImpersonationCheck = new-object System.Windows.Forms.CheckBox
$seImpersonationCheck.Location = new-object System.Drawing.Size(140,45)
$seImpersonationCheck.Size = new-object System.Drawing.Size(30,25)
$form.Controls.Add($seImpersonationCheck)

# Add Auth Clause

$esAuthlableBox = new-object System.Windows.Forms.Label
$esAuthlableBox.Location = new-object System.Drawing.Size(10,70)
$esAuthlableBox.Size = new-object System.Drawing.Size(130,20)
$esAuthlableBox.Text = "Specify Credentials"
$form.Controls.Add($esAuthlableBox)

$seAuthCheck = new-object System.Windows.Forms.CheckBox
$seAuthCheck.Location = new-object System.Drawing.Size(140,65)
$seAuthCheck.Size = new-object System.Drawing.Size(30,25)
$seAuthCheck.Add_Click({if ($seAuthCheck.Checked -eq $true){
$unUserNameTextBox.Enabled = $true
$unPasswordTextBox.Enabled = $true
$unDomainTextBox.Enabled = $true
}
else{
$unUserNameTextBox.Enabled = $false
$unPasswordTextBox.Enabled = $false
$unDomainTextBox.Enabled = $false}})
$form.Controls.Add($seAuthCheck)

# Add UserName Box
$unUserNameTextBox = new-object System.Windows.Forms.TextBox
$unUserNameTextBox.Location = new-object System.Drawing.Size(230,70)
$unUserNameTextBox.size = new-object System.Drawing.Size(100,20)
$form.Controls.Add($unUserNameTextBox)

# Add UserName Lable
$unUserNamelableBox = new-object System.Windows.Forms.Label
$unUserNamelableBox.Location = new-object System.Drawing.Size(170,70)
$unUserNamelableBox.size = new-object System.Drawing.Size(60,20)
$unUserNamelableBox.Text = "UserName"
$unUserNameTextBox.Enabled = $false
$form.Controls.Add($unUserNamelableBox)

# Add Password Box
$unPasswordTextBox = new-object System.Windows.Forms.TextBox
$unPasswordTextBox.PasswordChar = "*"
$unPasswordTextBox.Location = new-object System.Drawing.Size(400,70)
$unPasswordTextBox.size = new-object System.Drawing.Size(100,20)
$form.Controls.Add($unPasswordTextBox)

# Add Password Lable
$unPasswordlableBox = new-object System.Windows.Forms.Label
$unPasswordlableBox.Location = new-object System.Drawing.Size(340,70)
$unPasswordlableBox.size = new-object System.Drawing.Size(60,20)
$unPasswordlableBox.Text = "Password"
$unPasswordTextBox.Enabled = $false
$form.Controls.Add($unPasswordlableBox)

# Add Domain Box
$unDomainTextBox = new-object System.Windows.Forms.TextBox
$unDomainTextBox.Location = new-object System.Drawing.Size(550,70)
$unDomainTextBox.size = new-object System.Drawing.Size(100,20)
$form.Controls.Add($unDomainTextBox)

# Add Domain Lable
$unDomainlableBox = new-object System.Windows.Forms.Label
$unDomainlableBox.Location = new-object System.Drawing.Size(510,70)
$unDomainlableBox.size = new-object System.Drawing.Size(50,20)
$unDomainlableBox.Text = "Domain"
$unDomainTextBox.Enabled = $false
$form.Controls.Add($unDomainlableBox)

# Add CASUrl Box
$unCASUrlTextBox = new-object System.Windows.Forms.TextBox
$unCASUrlTextBox.Location = new-object System.Drawing.Size(70,100)
$unCASUrlTextBox.size = new-object System.Drawing.Size(500,20)
$unCASUrlTextBox.text = $strRootURI
$form.Controls.Add($unCASUrlTextBox)

# Add CASUrl Lable
$unCASUrllableBox = new-object System.Windows.Forms.Label
$unCASUrllableBox.Location = new-object System.Drawing.Size(10,100)
$unCASUrllableBox.size = new-object System.Drawing.Size(60,20)
$unCASUrllableBox.Text = "CASUrl"
$form.Controls.Add($unCASUrllableBox)


# Add DataGrid View

$dgDataGrid = new-object System.windows.forms.DataGridView
$dgDataGrid.Location = new-object System.Drawing.Size(10,130)
$dgDataGrid.size = new-object System.Drawing.Size(650,550)
$dgDataGrid.AutoSizeColumnsMode = "AllCells"
$dgDataGrid.SelectionMode = "FullRowSelect"
$form.Controls.Add($dgDataGrid)


$form.Text = "Exchange 2007 Default Calendar Permissions Form"
$form.size = new-object System.Drawing.Size(700,730)

$form.autoscroll = $true
$form.topmost = $true
$form.Add_Shown({$form.Activate()})
$form.ShowDialog()

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All sample scripts and source code is provided by for illustrative purposes only. All examples are untested in different environments and therefore, I cannot guarantee or imply reliability, serviceability, or function of these programs.

All code contained herein is provided to you "AS IS" without any warranties of any kind. The implied warranties of non-infringement, merchantability and fitness for a particular purpose are expressly disclaimed.