Unicode C
Unicode C
How to Access Parts of a multipart/related HTTP Response
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Demonstrates 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 ...
Chilkat Unicode C Downloads
#include <C_CkHttpW.h>
#include <C_CkXmlW.h>
#include <C_CkHttpRequestW.h>
#include <C_CkHttpResponseW.h>
#include <C_CkMimeW.h>
void ChilkatSample(void)
{
BOOL success;
HCkHttpW http;
HCkXmlW soapXml;
const wchar_t *xmlBody;
HCkHttpRequestW req;
BOOL useTls;
HCkHttpResponseW resp;
HCkMimeW mime;
HCkMimeW part0;
const wchar_t *subPartXmlBody;
success = FALSE;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
http = CkHttpW_Create();
soapXml = CkXmlW_Create();
// 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>
CkXmlW_putTag(soapXml,L"soap:Envelope");
CkXmlW_AddAttribute(soapXml,L"xmlns:soap",L"http://schemas.xmlsoap.org/soap/envelope/");
CkXmlW_UpdateAttrAt(soapXml,L"soap:Body|Detail",TRUE,L"xmlns",L"http://example.org/mtom/data");
CkXmlW_UpdateAttrAt(soapXml,L"soap:Body|Detail|image|xop:Include",TRUE,L"xmlns:xop",L"http://www.w3.org/2004/08/xop/include");
CkXmlW_UpdateAttrAt(soapXml,L"soap:Body|Detail|image|xop:Include",TRUE,L"href",L"cid:5aeaa450-17f0-4484-b845-a8480c363444@example.org");
CkXmlW_putEmitXmlDecl(soapXml,FALSE);
xmlBody = CkXmlW_getXml(soapXml);
wprintf(L"%s\n",xmlBody);
req = CkHttpRequestW_Create();
CkHttpRequestW_putHttpVerb(req,L"POST");
CkHttpRequestW_putPath(req,L"/something/someTarget");
CkHttpRequestW_putContentType(req,L"multipart/related; start-info=\"text/xml\"; type=\"application/xop+xml\"");
CkHttpRequestW_AddHeader(req,L"SOAPAction",L"some-SOAP-action");
success = CkHttpRequestW_AddStringForUpload2(req,L"",L"",xmlBody,L"utf-8",L"application/xop+xml; type=\"text/xml\"; charset=utf-8");
// The bytes will be sent as binary (not base64 encoded).
success = CkHttpRequestW_AddFileForUpload2(req,L"",L"qa_data/jpg/starfish.jpg",L"image/jpeg");
// The JPEG data is the 2nd sub-part, and therefore is at index 1 (the first sub-part is at index 0)
success = CkHttpRequestW_AddSubHeader(req,1,L"Content-ID",L"<5aeaa450-17f0-4484-b845-a8480c363444@example.org>");
CkHttpW_putFollowRedirects(http,TRUE);
useTls = TRUE;
resp = CkHttpResponseW_Create();
success = CkHttpW_HttpSReq(http,L"www.example.org",443,useTls,req,resp);
if (success == FALSE) {
wprintf(L"%s\n",CkHttpW_lastErrorText(http));
CkHttpW_Dispose(http);
CkXmlW_Dispose(soapXml);
CkHttpRequestW_Dispose(req);
CkHttpResponseW_Dispose(resp);
return;
}
// 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.
mime = CkMimeW_Create();
CkMimeW_LoadMime(mime,CkHttpResponseW_fullMime(resp));
// Your code might verify that the Content-Type is indeed multipart/related.
wprintf(L"%s\n",CkMimeW_contentType(mime));
wprintf(L"num parts = %d\n",CkMimeW_getNumParts(mime));
// Assuming it is, and the number of sub-parts is > 0
if (CkMimeW_getNumParts(mime) > 0) {
part0 = CkMimeW_Create();
CkMimeW_PartAt(mime,0,part0);
// The Content-Type (in this ficticious example) should be "application/xop+xml"
wprintf(L"sub-part Content-Type: %s\n",CkMimeW_contentType(part0));
// Now get the XML
subPartXmlBody = CkMimeW_getBodyDecoded(part0);
wprintf(L"%s\n",subPartXmlBody);
}
CkHttpW_Dispose(http);
CkXmlW_Dispose(soapXml);
CkHttpRequestW_Dispose(req);
CkHttpResponseW_Dispose(resp);
CkMimeW_Dispose(mime);
CkMimeW_Dispose(part0);
}