| Visual Basic (Declaration) | |
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<DescriptionAttribute("The Certificate used for optional client-side authentication")> <DefaultValueAttribute()> <BrowsableAttribute(False)> Public Property Certificate As Certificate | |
| Visual Basic (Usage) | Copy Code |
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Dim instance As Imap Dim value As Certificate instance.Certificate = value value = instance.Certificate | |
| C# | |
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[DescriptionAttribute("The Certificate used for optional client-side authentication")] [DefaultValueAttribute()] [BrowsableAttribute(false)] public Certificate Certificate {get; set;} | |
| Managed Extensions for C++ | |
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[DescriptionAttribute("The Certificate used for optional client-side authentication")] [DefaultValueAttribute()] [BrowsableAttribute(false)] public: __property Certificate* get_Certificate(); public: __property void set_Certificate( Certificate* value ); | |
| C++/CLI | |
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[DescriptionAttribute("The Certificate used for optional client-side authentication")] [DefaultValueAttribute()] [BrowsableAttribute(false)] public: property Certificate^ Certificate { Certificate^ get(); void set ( Certificate^ value); } | |
Property Value
A Certificate object representing the certificate to use for optional client-side authentication; null otherwise.The following example demonstrates using IMAP over SSL.
| Visual Basic | Copy Code |
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' Be sure to import the namespace by putting "Imports Dart.PowerTCP.Mail" ' at the top of your class. Private Sub ImapSSLTest() ' Use explicit SSL Imap1.Security = Dart.PowerTCP.Mail.Security.Explicit ' Login to the mail server Imap1.Login("MyImapServer", "username", "password") ' Send a NOOP command Dim Response As ImapResponse = Imap1.Noop() ' Check the response If Response.Status = ImapStatus.Ok Then Debug.WriteLine("Good response from server") Else Debug.WriteLine("Response from server: " + Response.Status) End ' Logout Imap1.Logout() End Sub Private Sub Imap1_CertificateReceived(ByVal sender As Object, e As Dart.PowerTCP.Mail.CertificateReceivedEventArgs) Handles Imap1.CertificateReceived Dim msg As String = "" ' Check to see if the certificate is from a trusted root. If Not e.TrustedRoot Then msg += "This certificate is not from a trusted root" + vbCrLf End If ' Check to see if the certificate has a valid date. If Not e.ValidDate Then msg += "This certificate does not have a valid date" + vbCrLf End If ' Check to see if the certificate has a valid name. If Not e.ValidName Then msg += "This certificate does not have a valid name" + vbCrLf End If If msg <> "" Then msg += "Would you like to accept this certificate anyway?" If MessageBox.Show(msg, "Invalid Cert Received", MessageBoxButtons.YesNo) = DialogResult.Yes Then ' User wants to accept the invalid cert. Accept it. e.Accept = True End If End If End Sub Private Sub Imap1_CertificateRequested(ByVal sender As Object, e As EventArgs) Handles Imap1.CertificateRequested ' Create a new instance of CertificateListForm Dim certForm as new CertificateListForm(True, True) certForm.Text = "The Server Requested A Client Certificate" ' Show the CertificateListForm to the user and let them choose a certificate If certForm.ShowDialog() = DialogResult.OK Then ' Set the Certificate property to the certificate the user selected. Imap1.Certificate = certForm.SelectedCertificate Else MessageBox.Show("You must select a cert. SSL communication will fail.") End If End Sub | |
| C# | Copy Code |
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// Be sure to import the namespace by putting "using Dart.PowerTCP.Mail;" // at the top of your class. private void ImapSSLTest() { // Use explicit SSL imap1.Security = Dart.PowerTCP.Mail.Security.Explicit; // Login to the mail server imap1.Login(server, user, pass); // Send a NOOP command ImapResponse response = imap1.Noop(); // Check the response if(response.Status == ImapStatus.Ok) Debug.WriteLine("Good response from server"); else Debug.WriteLine("Response from server: " + response.Status); // Logout imap1.Logout(); } private void imap1_CertificateReceived(object sender, Dart.PowerTCP.Mail.CertificateReceivedEventArgs e) { string msg = ""; // Check to see if the certificate is from a trusted root. if(!e.TrustedRoot) msg+= "This certificate is not from a trusted root\n"; // Check to see if the certificate has a valid date. if(!e.ValidDate) msg+= "This certificate does not have a valid date\n"; // Check to see if the certificate has a valid name. if(!e.ValidName) msg+= "This certificate does not have a valid name\n"; if(msg != "") { msg += "Would you like to accept this certificate anyway?"; if(MessageBox.Show(msg, "Invalid Cert Received", MessageBoxButtons.YesNo) == DialogResult.Yes) { // User wants to accept the invalid cert. Accept it. e.Accept = true; } } } private void imap1_CertificateRequested(object sender, System.EventArgs e) { // Create a new instance of CertificateListForm CertificateListForm certForm = new CertificateListForm(true, true); certForm.Text = "The Server Requested A Client Certificate"; // Show the CertificateListForm to the user and let them choose a certificate if(certForm.ShowDialog() == DialogResult.OK) { // Set the Certificate property to the certificate the user selected. imap1.Certificate = certForm.SelectedCertificate; } else { MessageBox.Show("You must select a cert. SSL communication will fail."); } } | |
If a secure server requests a certificate from the client for client-authentication, the value of this property is sent to the server.
Typically this property can either be set before attempting to connect or from within the CertificateRequested event which is raised when the server requests a certificate from the client.
Target Platforms: Microsoft .NET Framework 2.0
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