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(PureBasic) Using Client Certificate w/ IMAP SSL

Demonstrates how to use a client-side certificate with an IMAP SSL connection. The SetSslClientCert method is called to specify a certificate to be used for the SSL connection.

Chilkat PureBasic Module Download

Chilkat PureBasic Module

IncludeFile "CkEmailBundle.pb"
IncludeFile "CkMessageSet.pb"
IncludeFile "CkImap.pb"
IncludeFile "CkEmail.pb"
IncludeFile "CkCertStore.pb"
IncludeFile "CkCert.pb"

Procedure ChilkatExample()

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

    imap.i = CkImap::ckCreate()
    If imap.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; To use a secure SSL connection, set SSL and the port:
    CkImap::setCkSsl(imap, 1)
    ; The typical port for IMAP SSL is 993
    CkImap::setCkPort(imap, 993)

    ; Load a certificate from a PFX file and use it.
    ; Note: Other methods are available to load pre-installed
    ; certificates from registry-based certificate stores.

    ; Create an instance of a certificate store object, load a PFX file,
    ; locate the certificate we need, and use it for signing.
    ; (a PFX file may contain more than one certificate.)
    certStore.i = CkCertStore::ckCreate()
    If certStore.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; The 1st argument is the filename, the 2nd arg is the 
    ; PFX file's password:
    success.i = CkCertStore::ckLoadPfxFile(certStore,"myCertWithPrivateKey.pfx","secret")
    If success <> 1
        Debug CkCertStore::ckLastErrorText(certStore)
        CkImap::ckDispose(imap)
        CkCertStore::ckDispose(certStore)
        ProcedureReturn
    EndIf

    ; Find the certificate by the subject common name:
    cert.i
    cert = CkCertStore::ckFindCertBySubjectCN(certStore,"Chilkat Software, Inc.")
    If CkCertStore::ckLastMethodSuccess(certStore) = 0
        Debug CkCertStore::ckLastErrorText(certStore)
        CkImap::ckDispose(imap)
        CkCertStore::ckDispose(certStore)
        ProcedureReturn
    EndIf

    ; 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:
    cert2.i = CkCert::ckCreate()
    If cert2.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; The 1st argument is the filename, the 2nd arg is the 
    ; PFX file's password:
    success = CkCert::ckLoadPfxFile(cert2,"myClientCert.pfx","secret")
    If success <> 1
        Debug CkCert::ckLastErrorText(cert)
        CkImap::ckDispose(imap)
        CkCertStore::ckDispose(certStore)
        CkCert::ckDispose(cert2)
        ProcedureReturn
    EndIf

    ; Use the cert:
    success = CkImap::ckSetSslClientCert(imap,cert)

    ; Connect to an IMAP server.
    success = CkImap::ckConnect(imap,"imap.someMailServer.com")
    If success <> 1
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        CkCertStore::ckDispose(certStore)
        CkCert::ckDispose(cert2)
        ProcedureReturn
    EndIf

    ; Login
    success = CkImap::ckLogin(imap,"myLogin","myPassword")
    If success <> 1
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        CkCertStore::ckDispose(certStore)
        CkCert::ckDispose(cert2)
        ProcedureReturn
    EndIf

    ; Select an IMAP mailbox
    success = CkImap::ckSelectMailbox(imap,"Inbox")
    If success <> 1
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        CkCertStore::ckDispose(certStore)
        CkCert::ckDispose(cert2)
        ProcedureReturn
    EndIf

    messageSet.i
    ; We can choose to fetch UIDs or sequence numbers.
    fetchUids.i = 1
    ; Get the message IDs of all the emails in the mailbox
    messageSet = CkImap::ckSearch(imap,"ALL",fetchUids)
    If CkImap::ckLastMethodSuccess(imap) = 0
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        CkCertStore::ckDispose(certStore)
        CkCert::ckDispose(cert2)
        ProcedureReturn
    EndIf

    ; Fetch the emails into a bundle object:
    bundle.i
    bundle = CkImap::ckFetchBundle(imap,messageSet)
    If CkImap::ckLastMethodSuccess(imap) = 0
        CkMessageSet::ckDispose(messageSet)

        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        CkCertStore::ckDispose(certStore)
        CkCert::ckDispose(cert2)
        ProcedureReturn
    EndIf

    ; Loop over the bundle and display the FROM and SUBJECT of each.
    i.i = 0
    numEmails.i = CkEmailBundle::ckMessageCount(bundle)
    While i < numEmails
        email.i = CkEmailBundle::ckGetEmail(bundle,i)
        Debug CkEmail::ckFrom(email)
        Debug CkEmail::ckSubject(email)
        Debug "--"
        CkEmail::ckDispose(email)

        i = i + 1
    Wend

    ; Disconnect from the IMAP server.
    success = CkImap::ckDisconnect(imap)

    CkMessageSet::ckDispose(messageSet)

    CkEmailBundle::ckDispose(bundle)



    CkImap::ckDispose(imap)
    CkCertStore::ckDispose(certStore)
    CkCert::ckDispose(cert2)


    ProcedureReturn
EndProcedure

 

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