Skip to main content

Adding the Creator of Calendar appointments to appointments that already exist in a public calendar

A while ago I posted this event sink that can be used in a public calendar folder that will add the person who created the appointment so that it is visible when the appointment is looked at in Outlook or OWA. Being an event sink this will only have an effect on any new appointments that where added to the calendar. Somebody asked this week about modifying existing appointments in a calendar. This can be done using the same type of code and also including a query for a specific date range that will create a recordset of all the items in the calendar and then iterate though that recordset and add the creator to the location field of the appointment if it doesn’t already exist. Because this script use Exoledb it must be run locally on the server where the public folder is located. The date range in the query is set to modify all appointments between December 2005 and December 2006 and will affect both normal and recurring appointments.

I’ve put a downloadable version of the script here the code itself looks like

calurl = "file://./backofficestorage/youdomain.com/public folders/calenderfoldername"
call updateappointment(calurl,0)
wscript.echo
wscript.echo "Reccuring Appointments"
wscript.echo
call updateappointment(calurl,1)

sub updateappointment(CalendarURL,instancetype)

set rec = createobject("ADODB.Record")
set rec1 = createobject("ADODB.Record")
set rs = createobject("ADODB.Recordset")
Rec.Open CalendarURL
Set Rs.ActiveConnection = Rec.ActiveConnection
Rs.Source = "SELECT ""DAV:href"", " & _
" ""urn:schemas:calendar:location"", " & _
" ""urn:schemas:calendar:instancetype"", " & _
" ""urn:schemas:calendar:dtstart"", " & _
" ""urn:schemas:calendar:dtend"", " & _
" ""http://schemas.microsoft.com/mapi/proptag/0x3FF8001E"" " & _
"FROM scope('shallow traversal of """ & CalendarURL & """') " & _
"WHERE (""urn:schemas:calendar:dtstart"" >= CAST(""2005-12-01T08:00:00Z"" as 'dateTime'))
" & _
"AND (""urn:schemas:calendar:dtend"" <= CAST(""2006-12-01T08:00:00Z"" as 'dateTime'))"
& _
" AND (""urn:schemas:calendar:instancetype"" = " & instancetype & ")"
Rs.Open
If Not (Rs.EOF) Then
Rs.MoveFirst
Do Until Rs.EOF
ItemURL = Rs.Fields("DAV:Href").Value
wscript.echo ItemURL
creator = " Created by " & Rs.Fields("http://schemas.microsoft.com/mapi/proptag/0x3FF8001E").Value

wscript.echo creator
if instr(rs.fields("urn:schemas:calendar:location"),"Created by") then
wscript.echo "Creator Exists"
else
rec1.open Rs.Fields("DAV:Href").Value,,3
rec1.fields("urn:schemas:calendar:location") = rec1.fields("urn:schemas:calendar:location")
& creator
rec1.fields.update
rec1.close
wscript.echo "Added Creator"
end if
rs.movenext
loop
end if

end sub

 

Popular posts from this blog

The MailboxConcurrency limit and using Batching in the Microsoft Graph API

If your getting an error such as Application is over its MailboxConcurrency limit while using the Microsoft Graph API this post may help you understand why. Background   The Mailbox  concurrency limit when your using the Graph API is 4 as per https://docs.microsoft.com/en-us/graph/throttling#outlook-service-limits . This is evaluated for each app ID and mailbox combination so this means you can have different apps running under the same credentials and the poor behavior of one won't cause the other to be throttled. If you compared that to EWS you could have up to 27 concurrent connections but they are shared across all apps on a first come first served basis. Batching Batching in the Graph API is a way of combining multiple requests into a single HTTP request. Batching in the Exchange Mail API's EWS and MAPI has been around for a long time and its common, for email Apps to process large numbers of smaller items for a variety of reasons.  Batching in the Gr...

EWS-FAI Module for browsing and updating Exchange Folder Associated Items from PowerShell

Folder Associated Items are hidden Items in Exchange Mailbox folders that are commonly used to hold configuration settings for various Mailbox Clients and services that use Mailboxes. Some common examples of FAI's are Categories,OWA Signatures and WorkHours there is some more detailed documentation in the https://msdn.microsoft.com/en-us/library/cc463899(v=exchg.80).aspx protocol document. In EWS these configuration items can be accessed via the UserConfiguration operation https://msdn.microsoft.com/en-us/library/office/dd899439(v=exchg.150).aspx which will give you access to either the RoamingDictionary, XMLStream or BinaryStream data properties that holds the configuration depending on what type of FAI data is being stored. I've written a number of scripts over the years that target particular FAI's (eg this one that reads the workhours  http://gsexdev.blogspot.com.au/2015/11/finding-timezone-being-used-in-mailbox.html is a good example ) but I didn't have a gene...

Sending a MimeMessage via the Microsoft Graph using the Graph SDK, MimeKit and MSAL

One of the new features added to the Microsoft Graph recently was the ability to create and send Mime Messages (you have been able to get Message as Mime for a while). This is useful in a number of different scenarios especially when trying to create a Message with inline Images which has historically been hard to do with both the Graph and EWS (if you don't use MIME). It also opens up using SMIME for encryption and a more easy migration path for sending using SMTP in some apps. MimeKit is a great open source library for parsing and creating MIME messages so it offers a really easy solution for tackling this issue. The current documentation on Send message via MIME lacks any real sample so I've put together a quick console app that use MSAL, MIME kit and the Graph SDK to send a Message via MIME. As the current Graph SDK also doesn't support sending via MIME either there is a workaround for this in the future my guess is this will be supported.
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.