gecko-dev/netwerk/test/unit/test_post.js

//
// POST test
//

const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");

XPCOMUtils.defineLazyGetter(this, "URL", function() {
  return "http://localhost:" + httpserver.identity.primaryPort;
});

var httpserver = new HttpServer();
var testpath = "/simple";

var testfile = do_get_file("../unit/data/test_readline6.txt");

const BOUNDARY = "AaB03x";
var teststring1 =
  "--" +
  BOUNDARY +
  "\r\n" +
  'Content-Disposition: form-data; name="body"\r\n\r\n' +
  "0123456789\r\n" +
  "--" +
  BOUNDARY +
  "\r\n" +
  'Content-Disposition: form-data; name="files"; filename="' +
  testfile.leafName +
  '"\r\n' +
  "Content-Type: application/octet-stream\r\n" +
  "Content-Length: " +
  testfile.fileSize +
  "\r\n\r\n";
var teststring2 = "--" + BOUNDARY + "--\r\n";

const BUFFERSIZE = 4096;
var correctOnProgress = false;

var listenerCallback = {
  QueryInterface: ChromeUtils.generateQI(["nsIProgressEventSink"]),

  getInterface(iid) {
    if (iid.equals(Ci.nsIProgressEventSink)) {
      return this;
    }
    throw Cr.NS_ERROR_NO_INTERFACE;
  },

  onProgress(request, context, progress, progressMax) {
    // this works because the response is 0 bytes and does not trigger onprogress
    if (progress === progressMax) {
      correctOnProgress = true;
    }
  },

  onStatus(request, context, status, statusArg) {},
};

function run_test() {
  var sstream1 = Cc["@mozilla.org/io/string-input-stream;1"].createInstance(
    Ci.nsIStringInputStream
  );
  sstream1.data = teststring1;

  var fstream = Cc["@mozilla.org/network/file-input-stream;1"].createInstance(
    Ci.nsIFileInputStream
  );
  fstream.init(testfile, -1, -1, 0);

  var buffered = Cc[
    "@mozilla.org/network/buffered-input-stream;1"
  ].createInstance(Ci.nsIBufferedInputStream);
  buffered.init(fstream, BUFFERSIZE);

  var sstream2 = Cc["@mozilla.org/io/string-input-stream;1"].createInstance(
    Ci.nsIStringInputStream
  );
  sstream2.data = teststring2;

  var multi = Cc["@mozilla.org/io/multiplex-input-stream;1"].createInstance(
    Ci.nsIMultiplexInputStream
  );
  multi.appendStream(sstream1);
  multi.appendStream(buffered);
  multi.appendStream(sstream2);

  var mime = Cc["@mozilla.org/network/mime-input-stream;1"].createInstance(
    Ci.nsIMIMEInputStream
  );
  mime.addHeader("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
  mime.setData(multi);

  httpserver.registerPathHandler(testpath, serverHandler);
  httpserver.start(-1);

  var channel = setupChannel(testpath);

  channel
    .QueryInterface(Ci.nsIUploadChannel)
    .setUploadStream(mime, "", mime.available());
  channel.requestMethod = "POST";
  channel.notificationCallbacks = listenerCallback;
  channel.asyncOpen(new ChannelListener(checkRequest, channel));
  do_test_pending();
}

function setupChannel(path) {
  return NetUtil.newChannel({
    uri: URL + path,
    loadUsingSystemPrincipal: true,
  }).QueryInterface(Ci.nsIHttpChannel);
}

function serverHandler(metadata, response) {
  Assert.equal(metadata.method, "POST");

  var data = read_stream(
    metadata.bodyInputStream,
    metadata.bodyInputStream.available()
  );

  var testfile_stream = Cc[
    "@mozilla.org/network/file-input-stream;1"
  ].createInstance(Ci.nsIFileInputStream);
  testfile_stream.init(testfile, -1, -1, 0);

  Assert.equal(
    teststring1 +
      read_stream(testfile_stream, testfile_stream.available()) +
      teststring2,
    data
  );
}

function checkRequest(request, data, context) {
  Assert.ok(correctOnProgress);
  httpserver.stop(do_test_finished);
}