(Swift 3,4,5...) SOAP WS-Security Username Authentication

Demonstrates creating SOAP XML for WS-Security Username Authentication. The client user name and password are encapsulated in a WS-Security <wsse:UsernameToken>.

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func chilkatTest() {
    // Generate this XML with the code that follows:

    // 	<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
    // 	 <soap:Header>	     
    // 	  <wsse:Security xmlns:wsse="http://schemas.xmlsoap.org/ws/2003/06/secext">
    // 	   <wsse:UsernameToken wsu:Id="sample" 
    // 	       xmlns:wsu="http://schemas.xmlsoap.org/ws/2003/06/utility">
    // 	    <wsse:Username>sample</wsse:Username>
    // 	    <wsse:Password Type="wsse:PasswordText">oracle</wsse:Password>
    // 	    <wsu:Created>2004-05-19T08:44:51Z</wsu:Created>
    // 	   </wsse:UsernameToken>
    // 	  </wsse:Security>
    // 	  <wsse:Security soap:actor="oracle" 
    // 	      xmlns:wsse="http://schemas.xmlsoap.org/ws/2003/06/secext">
    // 	   <wsse:UsernameToken wsu:Id="oracle" 
    // 	       xmlns:wsu="http://schemas.xmlsoap.org/ws/2003/06/utility">
    // 	    <wsse:Username>myUsername</wsse:Username>
    // 	    <wsse:Password Type="wsse:PasswordText">myPassword</wsse:Password>
    // 	    <wsu:Created>2004-05-19T08:46:04Z</wsu:Created>
    // 	   </wsse:UsernameToken>
    // 	  </wsse:Security>
    // 	 </soap:Header>
    // 	  <soap:Body>
    // 	   <getHello xmlns="http://www.oracle.com"/>
    // 	  </soap:Body>
    // 	</soap:Envelope>
    // 

    // First build the outer housing:
    let xml = CkoXml()!
    xml.tag = "soap:Envelope"
    xml.addAttribute("xmlns:soap", value: "http://schemas.xmlsoap.org/soap/envelope/")
    xml.updateChildContent("soap:Header", value: "")
    xml.updateAttr(at: "soap:Body|getHello", autoCreate: true, attrName: "xmlns", attrValue: "http://www.oracle.com")

    // Get the current date/time in a string with this format: 2004-05-19T08:46:04Z
    let dt = CkoDateTime()!
    dt.setFromCurrentSystemTime()
    var bLocal: Bool = false
    var created: String? = dt.getAsTimestamp(bLocal)

    // Now build each UsernameToken block:
    let wsse1 = CkoXml()!
    wsse1.tag = "wsse:Security"
    wsse1.addAttribute("xmlns:wsse", value: "http://schemas.xmlsoap.org/ws/2003/06/secext")
    wsse1.updateAttr(at: "wsse:UsernameToken", autoCreate: true, attrName: "wsu:Id", attrValue: "sample")
    wsse1.updateAttr(at: "wsse:UsernameToken", autoCreate: true, attrName: "xmlns:wsu", attrValue: "http://schemas.xmlsoap.org/ws/2003/06/utility")
    wsse1.updateChildContent("wsse:UsernameToken|wsse:Username", value: "sample")
    wsse1.updateAttr(at: "wsse:UsernameToken|wsse:Password", autoCreate: true, attrName: "Type", attrValue: "wsse:PasswordText")
    wsse1.updateChildContent("wsse:UsernameToken|wsse:Password", value: "oracle")
    wsse1.updateChildContent("wsse:UsernameToken|wsu:Created", value: created)

    let wsse2 = CkoXml()!
    wsse2.tag = "wsse:Security"
    wsse2.addAttribute("soap:actor", value: "oracle")
    wsse2.addAttribute("xmlns:wsse", value: "http://schemas.xmlsoap.org/ws/2003/06/secext")
    wsse2.updateAttr(at: "wsse:UsernameToken", autoCreate: true, attrName: "wsu:Id", attrValue: "oracle")
    wsse2.updateAttr(at: "wsse:UsernameToken", autoCreate: true, attrName: "xmlns:wsu", attrValue: "http://schemas.xmlsoap.org/ws/2003/06/utility")
    wsse2.updateChildContent("wsse:UsernameToken|wsse:Username", value: "oracle")
    wsse2.updateAttr(at: "wsse:UsernameToken|wsse:Password", autoCreate: true, attrName: "Type", attrValue: "wsse:PasswordText")
    wsse2.updateChildContent("wsse:UsernameToken|wsse:Password", value: "oracle")
    wsse2.updateChildContent("wsse:UsernameToken|wsu:Created", value: created)

    // Insert the UsernameToken blocks:
    var xHeader: CkoXml? = xml.getChildWithTag("soap:Header")
    xHeader!.addChildTree(wsse1)
    xHeader!.addChildTree(wsse2)
    xHeader = nil

    // Show the XML:
    print("\(xml.getXml()!)")

}