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App_Code
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AppointmentWebDav.vb
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2011-09-24
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Imports Microsoft.VisualBasic
Imports System.Net.Mail
Imports MSXML2
Public Class AppointmentWebDav
' This class formats and sends a meeting request via SMTP email
Public StartDate As Date
Public StartTime As String
Public EndDate As Date
Public EndTime As String
Public Subject As String
Public Summary As String
Public Location As String
Public AttendeeName As String
Public EventID As String
Public Action As String
Public Status As String
Public Sub New(ByVal psStartDate As DateTime, _
ByVal psEndDate As DateTime, _
ByVal psSubject As String, _
ByVal psSummary As String, _
ByVal psLocation As String, _
ByVal psAttendeeName As String, _
ByVal psEventID As String, _
ByVal psAction As String, _
ByVal psStatus As String)
' Copy constructor parameters to public propeties
StartDate = psStartDate
EndDate = psEndDate
Subject = psSubject
Summary = psSummary
Location = psLocation
AttendeeName = psAttendeeName
EventID = psEventID
Action = psAction
Status = psStatus
End Sub
Public Sub SemdAppointment(ByRef strResult As String)
' Variables
Dim strExchSvrName As String
Dim strMailbox As String
Dim strCalendarUri As String
Dim strApptItem As String
Dim strDomain As String
Dim strUserName As String
Dim strPassword As String
Dim strApptRequest As String
Dim strMailInfo As String
Dim strCalInfo As String
Dim strXMLNSInfo As String
Dim strHeaderInfo As String
Dim PROPPATCHRequest As System.Net.HttpWebRequest
Dim PROPPATCHResponse As System.Net.WebResponse
Dim MyCredentialCache As System.Net.CredentialCache
Dim bytes() As Byte
Dim PROPPATCHRequestStream As System.IO.Stream
If Action = "A" Then
Try
' Exchange server name
strExchSvrName = "server6"
' Mailbox folder name.
strMailbox = AttendeeName
' Appointment item.
strApptItem = "PSS" & EventID & ".eml"
' URI of the user's calendar folder.
strCalendarUri = "http://" & strExchSvrName & "/exchange/" & strMailbox & "/Calendar/"
' User name and password of appointment creator.
strUserName = "prodservices"
strDomain = "BUSINESS"
strPassword = "production88"
' XML namespace info for the WebDAV request.
strXMLNSInfo = "xmlns:g=""DAV:"" " & _
"xmlns:e=""http://schemas.microsoft.com/exchange/"" " & _
"xmlns:mapi=""http://schemas.microsoft.com/mapi/"" " & _
"xmlns:mapit=""http://schemas.microsoft.com/mapi/proptag/"" " & _
"xmlns:x=""xml:"" xmlns:cal=""urn:schemas:calendar:"" " & _
"xmlns:dt=""urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/"" " & _
"xmlns:header=""urn:schemas:mailheader:"" " & _
"xmlns:mail=""urn:schemas:httpmail:"""
' Set the appointment item properties. The reminder time is set in seconds.
' To create an all-day meeting, set the dtstart/dtend range for 24 hours
' or more and set the alldayevent property to 1. See the documentation
' on the properties in the urn:schemas:calendar: namespace for more information.
strCalInfo = "<cal:location>" & Location & "</cal:location>" & _
"<cal:dtstart dt:dt=""dateTime.tz"">" & StartDate.ToString("yyyy-MM-dd") & "T" & StartDate.ToUniversalTime.ToString("HH:mm:ss") & ".000Z</cal:dtstart>" & _
"<cal:dtend dt:dt=""dateTime.tz"">" & EndDate.ToString("yyyy-MM-dd") & "T" & EndDate.ToUniversalTime.ToString("HH:mm:ss") & ".000Z</cal:dtend>" & _
"<cal:instancetype dt:dt=""int"">0</cal:instancetype>" & _
"<cal:busystatus>" & Status & "</cal:busystatus>" & _
"<cal:meetingstatus>CONFIRMED</cal:meetingstatus>" & _
"<cal:alldayevent dt:dt=""boolean"">0</cal:alldayevent>" & _
"<cal:responserequested dt:dt=""boolean"">1</cal:responserequested>" & _
"<cal:reminderoffset dt:dt=""int"">900</cal:reminderoffset>"
'strCalInfo = "<cal:location>meetappt Location</cal:location>" & _
' "<cal:dtstart dt:dt=""dateTime.tz"">2011-02-19T23:00:00.000Z</cal:dtstart>" & _
' "<cal:dtend dt:dt=""dateTime.tz"">2011-02-19T23:30:00.000Z</cal:dtend>" & _
' "<cal:instancetype dt:dt=""int"">0</cal:instancetype>" & _
' "<cal:busystatus>BUSY</cal:busystatus>" & _
' "<cal:meetingstatus>CONFIRMED</cal:meetingstatus>" & _
' "<cal:alldayevent dt:dt=""boolean"">0</cal:alldayevent>" & _
' "<cal:responserequested dt:dt=""boolean"">1</cal:responserequested>" & _
' "<cal:reminderoffset dt:dt=""int"">900</cal:reminderoffset>"
' Set the required attendee of the appointment.
strHeaderInfo = "<header:to>" & strMailbox & "</header:to>"
' Set the subject of the appointment.
strMailInfo = "<mail:subject>" & Subject & "</mail:subject>" & _
"<mail:htmldescription>" & Summary & "</mail:htmldescription>"
' Build the XML body of the PROPPATCH request.
strApptRequest = "<?xml version=""1.0""?>" & _
"<g:propertyupdate " & strXMLNSInfo & ">" & _
"<g:set><g:prop>" & _
"<g:contentclass>urn:content-classes:appointment</g:contentclass>" & _
"<e:outlookmessageclass>IPM.Appointment</e:outlookmessageclass>" & _
strMailInfo & _
strCalInfo & _
strHeaderInfo & _
"<mapi:finvited dt:dt=""boolean"">1</mapi:finvited>" & _
"</g:prop></g:set>" & _
"</g:propertyupdate>"
' Create a new CredentialCache object and fill it with the network
' credentials required to access the server.
MyCredentialCache = New System.Net.CredentialCache
MyCredentialCache.Add(New System.Uri(strCalendarUri), "NTLM", New System.Net.NetworkCredential(strUserName, strPassword, strDomain))
' Create the HttpWebRequest object.
PROPPATCHRequest = CType(System.Net.HttpWebRequest.Create(strCalendarUri & strApptItem), System.Net.HttpWebRequest)
' Add the network credentials to the request.
PROPPATCHRequest.Credentials = MyCredentialCache
' Specify the PROPPATCH method.
PROPPATCHRequest.Method = "PROPPATCH"
' Set the content type header.
PROPPATCHRequest.ContentType = "text/xml"
' Encode the body using UTF-8.
bytes = System.Text.Encoding.UTF8.GetBytes(strApptRequest)
' Set the content header length. This must be
' done before writing data to the request stream.
PROPPATCHRequest.ContentLength = bytes.Length
' Get a reference to the request stream.
PROPPATCHRequestStream = PROPPATCHRequest.GetRequestStream()
' Write the message body to the request stream.
PROPPATCHRequestStream.Write(bytes, 0, bytes.Length)
' Close the Stream object to release the connection
' for further use.
PROPPATCHRequestStream.Close()
' Create the appointment in the Calendar folder of the
' user's mailbox.
PROPPATCHResponse = CType(PROPPATCHRequest.GetResponse(), System.Net.HttpWebResponse)
'Console.WriteLine("Appointment successfully created.")
strResult = "Appointment successfully created." & "<br/><br/>" & strCalInfo
' Clean up.
PROPPATCHResponse.Close()
Catch ex As Exception
' Catch any exceptions. Any error codes from the PROPPATCH
' or MOVE method requests on the server will be caught
' here, also.
' Console.WriteLine(ex.Message)
' strResult = ex.Message & "<br/><br/>" & strApptRequest
strResult = ex.Message
End Try
Else
Try
' Exchange server name
strExchSvrName = "server6"
' Mailbox folder name.
strMailbox = AttendeeName
' Appointment item.
strApptItem = "PSS" & EventID & ".eml"
' URI of the user's calendar folder.
strCalendarUri = "http://" & strExchSvrName & "/exchange/" & strMailbox & "/Calendar/" & strApptItem
' User name and password of appointment creator.
strUserName = "prodservices"
strDomain = "BUSINESS"
strPassword = "production88"
'create the HttpWebRequest object
Dim objRequest As MSXML2.XMLHTTP40
objRequest = CreateObject("Microsoft.xmlhttp")
objRequest.open("DELETE", strCalendarUri, False, strUserName, strPassword)
objRequest.send()
If (objRequest.status >= 200 And objRequest.status < 300) Then
strResult = "Success! " & "Results = " & objRequest.status & ": " & objRequest.statusText
ElseIf objRequest.status = 401 Then
strResult = "You do not have permission to do the job. Please check your permissions on this item."
Else
strResult = "Request Failed. Results = " & objRequest.status & ": " & objRequest.statusText
End If
Catch ex As Exception
' Catch any exceptions. Any error codes from the PROPPATCH
' or MOVE method requests on the server will be caught
' here, also.
' Console.WriteLine(ex.Message)
' strResult = ex.Message & "<br/><br/>" & strApptRequest
strResult = ex.Message
End Try
End If
End Sub
End Class