(Swift 3,4,5...) Another SOAP with MTOM XOP Attachment Example

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Demonstrates another multipart/related MTOM SOAP request that adds additional headers in each MIME sub-part, and also specifies Content-Transfer-Encoding in the sub-parts.

Note: This example requires Chilkat v9.5.0.92 or greater.

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func chilkatTest() {
    // Note: This example requires Chilkat v9.5.0.92 or greater.

    // This example sends a request such as the following:

    // POST /FseInsServicesWeb/services/fseComunicazioneMetadati HTTP/1.1
    // Connection: Keep-Alive
    // Content-Length: 50649
    // Content-Type: multipart/related; type="application/xop+xml"; start="<rootpart@soapui.org>"; start-info="text/xml"; boundary="----=_Part_0_355796458.1662133302632"
    // Accept-Encoding: gzip,deflate
    // Authorization: Basic xxxxx
    // Host: ...
    // SOAPAction: "http://comunicazionemetadati.wsdl.fse.ini.finanze.it/ComunicazioneMetadati"
    // MIME-Version: 1.0
    // 
    // ------=_Part_0_355796458.1662133302632
    // Content-Type: application/xop+xml; charset=UTF-8; type="text/xml"
    // Content-Transfer-Encoding: 8bit
    // Content-ID: <rootpart@soapui.org>
    // 
    // <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:com="http://comunicazionemetadatirichiesta.xsd.fse.ini.finanze.it" xmlns:tip="http://tipodaticomunicazionemetadati.xsd.fse.ini.finanze.it">
    // <soapenv:Header/>
    // ...
    // 
    // ------=_Part_0_355796458.1662133302632
    // Content-Type: text/xml; charset=Cp1252
    // Content-Transfer-Encoding: quoted-printable
    // Content-ID: <CDA2LAB_190_signed.xml>
    // Content-Disposition: attachment; name="CDA2LAB_190_signed.xml"
    // 
    // <!-- INSERIRE IL RIFERIMENTO AL FOGLIO DI STILE DI AGID OPPURE INSERIRNE UN=
    // ...
    // 
    // ------=_Part_0_355796458.1662133302632--

    let http = CkoHttp()!
    let req = CkoHttpRequest()!

    req.httpVerb = "POST"
    req.path = "/FseInsServicesWeb/services/fseComunicazioneMetadati"

    // Chilkat will automatically generate and add a boundary string.
    req.contentType = "multipart/related; type=\"application/xop+xml\"; start=\"<rootpart@soapui.org>\"; start-info=\"text/xml\""
    req.addHeader("SOAPAction", value: "some-SOAP-action")

    req.addHeader("Connection", value: "Keep-Alive")
    req.addHeader("Accept-Encoding", value: "gzip,deflate")
    req.addHeader("MIME-Version", value: "1.0")

    // Chilkat will automatically add the Content-Length and Host headers.

    // The "Authorization: Basic ..."  header is added by setting the Login and Password and specifying Basic authentication:
    http.login = "..."
    http.password = "..."
    http.basicAuth = true

    // Add the 1st multipart/related sub-part, which is the SOAP envelope.
    var xmlBody: String? = "<soapenv:Envelope ...."
    var success: Bool = req.addString(forUpload2: "", filename: "", strData: xmlBody, charset: "utf-8", contentType: "application/xop+xml; type=\"text/xml\"; charset=utf-8")

    // Additional headers for the 1st sub-part
    success = req.addSubHeader(0, name: "Content-ID", value: "<rootpart@soapui.org>")
    success = req.addSubHeader(0, name: "Content-Transfer-Encoding", value: "8bit")
    success = req.addSubHeader(0, name: "Content-Disposition", value: "")

    // Add the 2nd multipart/related sub-part, which is the signed XML
    var xmlBody2: String? = "<!-- INSERIRE IL RIFERIMENT ...."
    success = req.addString(forUpload2: "CDA2LAB_190_signed.xml", filename: "", strData: xmlBody2, charset: "Cp1252", contentType: "text/xml; charset=Cp1252")

    // Additional headers for the 2nd sub-part.
    success = req.addSubHeader(1, name: "Content-ID", value: "<CDA2LAB_190_signed.xml>")
    success = req.addSubHeader(1, name: "Content-Transfer-Encoding", value: "quoted-printable")
    success = req.addSubHeader(1, name: "Content-Disposition", value: "attachment; name=\"CDA2LAB_190_signed.xml\"")

    http.followRedirects = true

    var useTls: Bool = true
    var resp: CkoHttpResponse? = http.synchronousRequest("fseservicetest.sanita.finanze.it", port: 443, ssl: useTls, req: req)
    if http.lastMethodSuccess != true {
        print("\(http.lastErrorText!)")
        return
    }

    let xmlResponse = CkoXml()!
    success = xmlResponse.load(resp!.bodyStr)
    print("\(xmlResponse.getXml()!)")
    resp = nil

}