PowerBuilder

Send Signed Email using PFX File (long version)

Demonstrates how to send a signed email using a digital certificate w/ private key stored in a PFX file. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Mailman
oleobject loo_Email
oleobject loo_CertStore
oleobject loo_JsonE
oleobject loo_Cert
oleobject loo_Cert2

li_Success = 0

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// The mailman object is used for sending and receiving email.
loo_Mailman = create oleobject
li_rc = loo_Mailman.ConnectToNewObject("Chilkat.MailMan")
if li_rc < 0 then
    destroy loo_Mailman
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Set the SMTP server.
loo_Mailman.SmtpHost = "smtp.mymailserver.com"

// Create a new email object
loo_Email = create oleobject
li_rc = loo_Email.ConnectToNewObject("Chilkat.Email")

loo_Email.Subject = "This email is signed"
loo_Email.Body = "This is a digitally signed mail"
loo_Email.From = "Chilkat Admin <admin@chilkatsoft.com>"
li_Success = loo_Email.AddTo("Chilkat Support","support@chilkatsoft.com")

// Indicate that the email should be sent signed.
loo_Email.SendSigned = 1

// Load a PFX file into a certificate store object.
// Then locate the certificate matching the  sender's email address,
// and use it for signing.
// (a PFX file may contain more than one certificate.)
loo_CertStore = create oleobject
li_rc = loo_CertStore.ConnectToNewObject("Chilkat.CertStore")

// The 1st argument is the path of the PFX file, the 2nd arg is the 
// PFX file's password:
li_Success = loo_CertStore.LoadPfxFile("/pfx_files/chilkatsoft_secret.pfx","secret")
if li_Success <> 1 then
    Write-Debug loo_CertStore.LastErrorText
    destroy loo_Mailman
    destroy loo_Email
    destroy loo_CertStore
    return
end if

// Find the certificate for the email address:
loo_JsonE = create oleobject
li_rc = loo_JsonE.ConnectToNewObject("Chilkat.JsonObject")

loo_JsonE.UpdateString("email","admin@chilkatsoft.com")

loo_Cert = create oleobject
li_rc = loo_Cert.ConnectToNewObject("Chilkat.Cert")

li_Success = loo_CertStore.FindCert(loo_JsonE,loo_Cert)
if li_Success = 0 then
    Write-Debug loo_CertStore.LastErrorText
    destroy loo_Mailman
    destroy loo_Email
    destroy loo_CertStore
    destroy loo_JsonE
    destroy loo_Cert
    return
end if

// Alternatively, if a PFX file is known to contain a single certificate,
// you may load it directly into a Chilkat certificate object.
// This snippet of source code shows how:
loo_Cert2 = create oleobject
li_rc = loo_Cert2.ConnectToNewObject("Chilkat.Cert")

// The 1st argument is the filename, the 2nd arg is the 
// PFX file's password:
li_Success = loo_Cert2.LoadPfxFile("/pfx_files/chilkatsoft_secret.pfx","secret")
if li_Success <> 1 then
    Write-Debug loo_Cert2.LastErrorText
    destroy loo_Mailman
    destroy loo_Email
    destroy loo_CertStore
    destroy loo_JsonE
    destroy loo_Cert
    destroy loo_Cert2
    return
end if

// This example will use the cert from the certStore...
li_Success = loo_Email.SetSigningCert(loo_Cert)

// Signed email can be sent in two different ways.  
// In a multipart/signed email, the signature is attached as a separate MIME part.
// In an opaque email (signedData) the content of the email is encapsulated within the signature
// and the email is sent as "application/pkcs7-mime". 
// Either should be fine, but some receiving systems might require one or the other..
loo_Mailman.OpaqueSigning = 0

// Send a signed email.
li_Success = loo_Mailman.SendEmail(loo_Email)
if li_Success <> 1 then
    Write-Debug loo_Mailman.LastErrorText
else
    // The LastErrorText property provides information
    // even when successful.
    Write-Debug loo_Mailman.LastErrorText
    Write-Debug "Mail Sent!"
end if



destroy loo_Mailman
destroy loo_Email
destroy loo_CertStore
destroy loo_JsonE
destroy loo_Cert
destroy loo_Cert2