DataFlex

Scan for Emails with Attachments and Save Attachments to Files

Scan for emails with attachments and save attachments. DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoImap
    Boolean iFetchUids
    Variant vMessageSet
    Handle hoMessageSet
    Variant vBundle
    Handle hoBundle
    Boolean iHeadersOnly
    Variant vFullEmail
    Handle hoFullEmail
    Variant vEmailHeader
    Handle hoEmailHeader
    Integer i
    Integer iNumAttach
    String sUidStr
    Integer iUid
    Integer j
    String sFilename
    String sTemp1

    Move False To iSuccess

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

    Get Create (RefClass(cComChilkatImap)) To hoImap
    If (Not(IsComObjectCreated(hoImap))) Begin
        Send CreateComObject of hoImap
    End

    // Connect to an IMAP server.
    // Use TLS
    Set ComSsl Of hoImap To True
    Set ComPort Of hoImap To 993
    Get ComConnect Of hoImap "imap.example.com" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Login
    Get ComLogin Of hoImap "myLogin" "myPassword" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Select an IMAP mailbox
    Get ComSelectMailbox Of hoImap "Inbox" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // We can choose to fetch UIDs or sequence numbers.
    Move True To iFetchUids

    // Get the message IDs of all the emails in the mailbox
    Get Create (RefClass(cComChilkatMessageSet)) To hoMessageSet
    If (Not(IsComObjectCreated(hoMessageSet))) Begin
        Send CreateComObject of hoMessageSet
    End
    Get pvComObject of hoMessageSet to vMessageSet
    Get ComQueryMbx Of hoImap "ALL" iFetchUids vMessageSet To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Fetch the email headers into a bundle object:
    Get Create (RefClass(cComChilkatEmailBundle)) To hoBundle
    If (Not(IsComObjectCreated(hoBundle))) Begin
        Send CreateComObject of hoBundle
    End
    Move True To iHeadersOnly
    Get pvComObject of hoMessageSet to vMessageSet
    Get pvComObject of hoBundle to vBundle
    Get ComFetchMsgSet Of hoImap iHeadersOnly vMessageSet vBundle To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Scan for emails with attachments, and save the attachments
    // to a sub-directory.
    Get Create (RefClass(cComChilkatEmail)) To hoFullEmail
    If (Not(IsComObjectCreated(hoFullEmail))) Begin
        Send CreateComObject of hoFullEmail
    End
    Get Create (RefClass(cComChilkatEmail)) To hoEmailHeader
    If (Not(IsComObjectCreated(hoEmailHeader))) Begin
        Send CreateComObject of hoEmailHeader
    End
    Move 0 To i
    While (i < (ComMessageCount(hoBundle)))
        // The bundle contains email headers..
        Get pvComObject of hoEmailHeader to vEmailHeader
        Get ComEmailAt Of hoBundle i vEmailHeader To iSuccess

        // Does this email have attachments?
        // Use GetMailNumAttach because the attachments
        // are not actually in the email object because
        // we only downloaded headers.
        Get pvComObject of hoEmailHeader to vEmailHeader
        Get ComGetMailNumAttach Of hoImap vEmailHeader To iNumAttach

        If (iNumAttach > 0) Begin
            // Download the entire email and save the
            // attachments. (Remember, we 
            // need to download the entire email because
            // only the headers were previously downloaded.

            // The ckx-imap-uid header field is added when
            // headers are downloaded.  This makes it possible
            // to get the UID from the email object.
            Get ComGetHeaderField Of hoEmailHeader "ckx-imap-uid" To sUidStr
            Move (sUidStr) To iUid

            Get pvComObject of hoFullEmail to vFullEmail
            Get ComFetchEmail Of hoImap False iUid True vFullEmail To iSuccess
            If (iSuccess = False) Begin
                Get ComLastErrorText Of hoImap To sTemp1
                Showln sTemp1
                Procedure_Return
            End

            Get ComSaveAllAttachments Of hoFullEmail "attachmentsDir" To iSuccess

            For j From 0 To (iNumAttach - 1)
                Get pvComObject of hoEmailHeader to vEmailHeader
                Get ComGetMailAttachFilename Of hoImap vEmailHeader j To sFilename
                Showln sFilename
            Loop

        End

        Move (i + 1) To i
    Loop

    // Disconnect from the IMAP server.
    Get ComDisconnect Of hoImap To iSuccess


End_Procedure