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const Cc = Components.classes;
const Ci = Components.interfaces;
function gzipCompressString(string, obs) {
let scs = Cc["@mozilla.org/streamConverters;1"]
.getService(Ci.nsIStreamConverterService);
let listener = Cc["@mozilla.org/network/stream-loader;1"]
.createInstance(Ci.nsIStreamLoader);
listener.init(obs);
let converter = scs.asyncConvertData("uncompressed", "gzip",
listener, null);
let stringStream = Cc["@mozilla.org/io/string-input-stream;1"]
.createInstance(Ci.nsIStringInputStream);
stringStream.data = string;
converter.onStartRequest(null, null);
converter.onDataAvailable(null, null, stringStream, 0, string.length);
converter.onStopRequest(null, null, null);
}
function produceData() {
var chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%^&*()_+";
var result = '';
for (var i = 0; i < 100000; ++i) {
result += chars;
}
return result;
}
function handleRequest(request, response)
{
response.processAsync();
// Generate data
var strings_to_send = produceData();
response.setHeader("Content-Type", "text/plain", false);
response.setHeader("Content-Encoding", "gzip", false);
let observer = {
onStreamComplete: function(loader, context, status, length, result) {
buffer = String.fromCharCode.apply(this, result);
response.setHeader("Content-Length", ""+buffer.length, false);
response.write(buffer);
response.finish();
}
};
gzipCompressString(strings_to_send, observer);
}
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