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(Visual FoxPro) How to Access Parts of a multipart/related HTTP ResponseDemonstrates how to access the parts of a multipart/related response. This example sends a ficticious multipart/related request, and handles a ficticious multipart/related response. We send the following multipart/related request: Content-Type: multipart/related; start-info="text/xml"; type="application/xop+xml"; boundary="----=_Part_0_1744155.1118953559416" Content-Length: 3453 SOAPAction: "some-SOAP-action" ------=_Part_1_4558657.1118953559446 Content-Type: application/xop+xml; type="text/xml"; charset=utf-8 <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> <soap:Body> <Detail xmlns="http://example.org/mtom/data"> <image> <xop:Include xmlns:xop="http://www.w3.org/2004/08/xop/include" href="cid:5aeaa450-17f0-4484-b845-a8480c363444@example.org" /> </image> </Detail> </soap:Body> </soap:Envelope> ------=_Part_1_4558657.1118953559446 Content-Type: image/jpeg Content-ID: <5aeaa450-17f0-4484-b845-a8480c363444@example.org> ... binary data ...
LOCAL loHttp LOCAL loSoapXml LOCAL lcXmlBody LOCAL loReq LOCAL lnUseTls LOCAL loResp LOCAL loMime LOCAL loPart0 LOCAL lcSubPartXmlBody * This example requires the Chilkat API to have been previously unlocked. * See Global Unlock Sample for sample code. * For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Http') loHttp = CreateObject('Chilkat.Http') * For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Xml') loSoapXml = CreateObject('Chilkat.Xml') * Build the following SOAP XML * <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> * <soap:Body> * <Detail xmlns="http://example.org/mtom/data"> * <image> * <xop:Include xmlns:xop="http://www.w3.org/2004/08/xop/include" href="cid:5aeaa450-17f0-4484-b845-a8480c363444@example.org" /> * </image> * </Detail> * </soap:Body> * </soap:Envelope> loSoapXml.Tag = "soap:Envelope" loSoapXml.AddAttribute("xmlns:soap","http://schemas.xmlsoap.org/soap/envelope/") loSoapXml.UpdateAttrAt("soap:Body|Detail",1,"xmlns","http://example.org/mtom/data") loSoapXml.UpdateAttrAt("soap:Body|Detail|image|xop:Include",1,"xmlns:xop","http://www.w3.org/2004/08/xop/include") loSoapXml.UpdateAttrAt("soap:Body|Detail|image|xop:Include",1,"href","cid:5aeaa450-17f0-4484-b845-a8480c363444@example.org") loSoapXml.EmitXmlDecl = 0 lcXmlBody = loSoapXml.GetXml() ? lcXmlBody * For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.HttpRequest') loReq = CreateObject('Chilkat.HttpRequest') loReq.HttpVerb = "POST" loReq.Path = "/something/someTarget" loReq.ContentType = 'multipart/related; start-info="text/xml"; type="application/xop+xml"' loReq.AddHeader("SOAPAction","some-SOAP-action") lnSuccess = loReq.AddStringForUpload2("","",lcXmlBody,"utf-8",'application/xop+xml; type="text/xml"; charset=utf-8') * The bytes will be sent as binary (not base64 encoded). lnSuccess = loReq.AddFileForUpload2("","qa_data/jpg/starfish.jpg","image/jpeg") * The JPEG data is the 2nd sub-part, and therefore is at index 1 (the first sub-part is at index 0) lnSuccess = loReq.AddSubHeader(1,"Content-ID","<5aeaa450-17f0-4484-b845-a8480c363444@example.org>") loHttp.FollowRedirects = 1 lnUseTls = 1 loResp = loHttp.SynchronousRequest("www.example.org",443,lnUseTls,loReq) IF (loHttp.LastMethodSuccess <> 1) THEN ? loHttp.LastErrorText RELEASE loHttp RELEASE loSoapXml RELEASE loReq CANCEL ENDIF * Imagine the HTTP response is multipart related and is something like this: * HTTP/1.1 200 OK * Cache-Control: no-cache, no-store * Pragma: no-cache * Transfer-Encoding: chunked * Content-Type: multipart/related; boundary=------------080001080500020607080905 * Expires: -1 * Server: Microsoft-IIS/10.0 * X-AspNet-Version: 4.0.30319 * X-Powered-By: ASP.NET * Date: Wed, 19 Feb 2020 15:27:06 GMT * * --------------080001080500020607080905 * Content-Type: application/xop+xml; charset=iso-8859-1 * Content-Id: RootPart * Content-Transfer-Encoding: binary * * <?xml version="1.0" encoding="iso-8859-1"?> * <soapenv:Envelope xmlns:xcpt="..."> * <soapenv:Header /> * <soapenv:Body> * <xres:Transport profile="http://something.example.com/..." version="1.4"> * <xres:TransportHeader> * ... * ... * </xres:TransportHeader> * <xres:TransportBody /> * </xres:Transport> * </soapenv:Body> * </soapenv:Envelope> * --------------080001080500020607080905-- * To get the XML, load the full MIME of the response into a Chilkat MIME object. Then get the body of the 1st sub-part. * For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Mime') loMime = CreateObject('Chilkat.Mime') loMime.LoadMime(loResp.FullMime) * Your code might verify that the Content-Type is indeed multipart/related. ? loMime.ContentType ? "num parts = " + STR(loMime.NumParts) * Assuming it is, and the number of sub-parts is > 0 IF (loMime.NumParts > 0) THEN loPart0 = loMime.GetPart(0) * The Content-Type (in this ficticious example) should be "application/xop+xml" ? "sub-part Content-Type: " + loPart0.ContentType * Now get the XML lcSubPartXmlBody = loPart0.GetBodyDecoded() ? lcSubPartXmlBody RELEASE loPart0 ENDIF RELEASE loResp RELEASE loHttp RELEASE loSoapXml RELEASE loReq RELEASE loMime |
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