multipart upload

[CER]

Hello I am trying to upload some file (data.bin) to a server

Code: Select all

57     HTTPClientSession s("example.com");
58     HTTPRequest request(HTTPRequest::HTTP_POST, "/upload.php");
59
60     HTMLForm form(HTMLForm::ENCODING_MULTIPART);
61     form.set("userid", "value1");
62     form.set("password", "value2");
63
64     FilePartSource* pFPS = new FilePartSource("data.bin");
65
66     form.addPart("data.bin", pFPS);
67     form.prepareSubmit(request);
68
69     request.setKeepAlive(true);
70     request.setChunkedTransferEncoding(true);
71     s.sendRequest(request);
72
73     request.write(std::cout);
74     form.write(std::cout);
75
76     HTTPResponse response;
77     std::istream& rs = s.receiveResponse(response);
78
79     Poco::StreamCopier::copyStream(rs, std::cout);



Above compiles but the server does not see any data. For instance, PHP's $_FILES is empty.

Thank for telling me what is wrong in the code above

Have a good day!

[CER]

Hi

I finally solved the issue. The problem was that the call to
s.sendRequest(request)
should be wrapped inside
form.write(s.sendRequest(request));
so that the form's body is really sent.

Below is a working solution

Code: Select all

85   using namespace Poco::Net;
87   Poco::URI uri("http://example.com:80/upload.php");
88   
89   HTTPClientSession s(uri.getHost(), uri.getPort());
90   HTTPRequest request(HTTPRequest::HTTP_POST, uri.getPathAndQuery(), HTTPMessage::HTTP_1_1);
91   request.setHost(uri.getHost(), uri.getPort());
92   request.set("User-Agent", "POCO 1.4.3p1");
93   //request.setKeepAlive(true);
94   //request.setChunkedTransferEncoding(true);
95   
96   HTMLForm form(HTMLForm::ENCODING_MULTIPART);
97   form.set("userid", "value1");
98   form.set("password", "value2");
99   FilePartSource* pFPS = new FilePartSource("data.bin", "data.bin","application/octet-stream");
100   form.addPart("message", pFPS);
101   form.prepareSubmit(request);
102   
103   std::ofstream log("log",std::ios::app);
104   request.write(log);     //request.write(std::cout);
105   form.write(log);        //form.write(std::cout);
106   
107   //s.sendRequest(request);
108   form.write(s.sendRequest(request));
109   
110   HTTPResponse response;
111   std::istream& rs = s.receiveResponse(response);
112   
113   Poco::StreamCopier::copyStream(rs, std::cout);
114   
115   std::cout << response.getStatus() << ": " << response.getReason() << std::endl;
116   
117   return;