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(C#) Parse Multipart Binary Http ResponseThis example demonstrates how to parse an HTTP response that is multipart and contains a binary file, such as a .zip or .pdf.
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. bool success; Chilkat.Http http = new Chilkat.Http(); Chilkat.HttpRequest req = new Chilkat.HttpRequest(); // ... // Insert code here to construct some kind of HTTP request. // this example is to show how to parse a particular kind of response. // ... // ... // Send the request (whatever it may be in your case) to get the HTTP response object. Chilkat.HttpResponse resp = http.SynchronousRequest("www.somedomain.com",443,true,req); if (http.LastMethodSuccess != true) { Debug.WriteLine(http.LastErrorText); return; } // Get the response body (which is expected to be binary) Chilkat.BinData respBody = new Chilkat.BinData(); resp.GetBodyBd(respBody); // For this example, the response body contains something like this: // ------=_Part_21302_2029949381.1547401515443 // Content-Type: application/xop+xml; charset=UTF-8; type="text/xml" // Content-Transfer-Encoding: 8bit // Content-ID: <rootpart@ws.jboss.org> // // <env:Envelope xmlns:env='http://schemas.xmlsoap.org/soap/envelope/'><env:Header></env:Header><env:Body>...</env:Body></env:Envelope> // ------=_Part_21302_2029949381.1547401515443 // Content-Type: application/octet-stream // Content-Transfer-Encoding: binary // Content-Id: <fileArchivio-7d302908-4d64-43d3-bf4e-79ce806d43b3@ws.jboss.org> // // BINARY_CONTENT_HERE... // // ------=_Part_21302_2029949381.1547401515443-- // // Load it into a Chilkat MIME object. Chilkat.Mime mime = new Chilkat.Mime(); success = mime.LoadMimeBd(respBody); if (success != true) { Debug.WriteLine(mime.LastErrorText); return; } int numParts = mime.NumParts; if (numParts < 2) { Debug.WriteLine("Expected multipart MIME with at least 2 sub-parts."); return; } // Get the 1st sub-part, which is the XML. Chilkat.Mime part0 = mime.GetPart(0); // Should be OK because we checked NumParts above.. string xmlStr = part0.GetBodyDecoded(); Debug.WriteLine(xmlStr); Debug.WriteLine("----"); // Save the 2nd part to a file. (It is a .zip file in our test case..) Chilkat.Mime part1 = mime.GetPart(1); success = part1.SaveBody("qa_output/attachedZip.zip"); // Alternatively, we could extract the binary data to a BinData and use elsewhere.. Chilkat.BinData zipData = new Chilkat.BinData(); success = part1.GetBodyBd(zipData); success = zipData.WriteFile("qa_output/attachedZip_again.zip"); Debug.WriteLine("OK."); |
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