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(PowerBuilder) HTTPS multipart/form-data POSTDemonstrates how to send a multipart/form-data POST over HTTPS (using TLS).
integer li_rc oleobject loo_Req string ls_PathToFileOnDisk integer li_Success string ls_FileContents oleobject loo_Http oleobject loo_Resp string ls_HtmlStr // This example assumes the Chilkat HTTP API to have been previously unlocked. // See Global Unlock Sample for sample code. // This example demonstrates how to send a multipart/form-data POST that // looks like this: // POST /cgi/XXX.pl HTTP/1.0 // Accept: text/html // Connection: Keep-Alive // User-Agent: XXX/8.0.15 // Content-type: multipart/form-data, boundary=XXXxyxy // Content-Length: 682 // // --XXXxyxy // content-disposition: form-data; name="UploadAgent" // // InterfaceVersion1.5 // --XXXxyxy // content-disposition: form-data; name="user" // // userValue // --XXXxyxy // content-disposition: form-data; name="password" // // passwordValue // --XXXxyxy // content-disposition: form-data; name="file" // // fileValue // --XXXxyxy // content-disposition: form-data; name="data_version" // // dataVersion // --XXXxyxy // content-disposition: form-data; name="content2"; filename="XXX" // // THE FILE CONTENT GOES HERE... // --XXXxyxy-- // // First, let's build the HTTP request object loo_Req = create oleobject // Use "Chilkat_9_5_0.HttpRequest" for versions of Chilkat < 10.0.0 li_rc = loo_Req.ConnectToNewObject("Chilkat.HttpRequest") if li_rc < 0 then destroy loo_Req MessageBox("Error","Connecting to COM object failed") return end if loo_Req.HttpVerb = "POST" loo_Req.Path = "/cgi/XXX.pl" // The boundary string is automatically generated and added by Chilkat. // The value for the boundary string doesn't matter. (As long as it's a unique string that doesn't occur elsewhere in the request.) loo_Req.ContentType = "multipart/form-data" // Adding the Connection: Keep-Alive is optional. It only makes sense if the intent is to send // additional requests to the same domain (your-namespace-sb.accesscontrol.windows.net) within a reasonable time period. loo_Req.AddHeader("Connection","Keep-Alive") // -------------------------------------------------- // IMPORTANT: Never set the Content-Length header. // Chilkat will automatically compute the correct Content-Length and will add it. // -------------------------------------------------- // If a specific User-Agent header field is needed, it can be added by calling AddHeader. loo_Req.AddHeader("User-Agent","XXX/8.0.15") // The "Accept" header, if present, tells the server what Content-Type responses will be accepted. // In this case, we're telling the server that we'll only accept "text/html" responses, and therefore // the server SHOULD only send a text/html response. Technically, the Accept header is not required. loo_Req.AddHeader("Accept","text/html") // Add the params to the request. Given that the Content-Type is set to "multipart/form-data", when // Chilkat composes the request, it will put each param in it's own MIME sub-part (i.e. in it's own // part delimited by the boundary string). loo_Req.AddParam("UploadAgent","InterfaceVersion1.5") loo_Req.AddParam("user","userValue") loo_Req.AddParam("password","passwordValue") loo_Req.AddParam("file","fileValue") loo_Req.AddParam("data_version","dataVersion") // The last param is the contents of a file. // If it's a file on disk, we can add it like this: ls_PathToFileOnDisk = "c:/someDir/someFile.dat" li_Success = loo_Req.AddFileForUpload("content2",ls_PathToFileOnDisk) if li_Success <> 1 then Write-Debug loo_Req.LastErrorText destroy loo_Req return end if // Alternatively, if the contents of the file are in memory, perhaps in a string // variable, the file can be added like this instead. ls_FileContents = "This is the content of the file being uploaded." li_Success = loo_Req.AddStringForUpload("content2","XXX",ls_FileContents,"utf-8") // ----------------------------------------------------------- // IMPORTANT: To duplicate the HTTP request shown above, you'll want to choose // either AddStringForUpload or AddFileForUpload, but not both. It's possible to upload // any number of files by calling AddStringForUpload and/or AddFileForUpload any number // of times, once per file to be uploaded. This of course assumes that the receiving // end is programmed to receive multiple files.. // ------------------------------------------------------------ loo_Http = create oleobject // Use "Chilkat_9_5_0.Http" for versions of Chilkat < 10.0.0 li_rc = loo_Http.ConnectToNewObject("Chilkat.Http") // The request is ready... now send it using HTTPS (which is port 443 by default). loo_Resp = loo_Http.SynchronousRequest("www.myserver.com",443,1,loo_Req) if loo_Http.LastMethodSuccess <> 1 then Write-Debug loo_Http.LastErrorText destroy loo_Req destroy loo_Http return end if Write-Debug "HTTP response status: " + string(loo_Resp.StatusCode) // In this case, the response would be HTML because our Accept header // told the server to only return HTML. The HTML is available on the BodyStr // property of the response object: ls_HtmlStr = loo_Resp.BodyStr Write-Debug "Received:" Write-Debug ls_HtmlStr destroy loo_Resp destroy loo_Req destroy loo_Http |
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