michael@0: const Cc = Components.classes;
michael@0: const Ci = Components.interfaces;
michael@0: const TIMEOUT_INTERVAL_MS = 100;
michael@0: 
michael@0: function handleRequest(request, response) {
michael@0: 
michael@0:   // Allow us to asynchronously construct the response with timeouts
michael@0:   // rather than forcing us to make the whole thing in one call. See
michael@0:   // bug 396226.
michael@0:   response.processAsync();
michael@0: 
michael@0:   // Figure out whether the client wants to load the image, or just
michael@0:   // to tell us to finish the previous load
michael@0:   var query = {};
michael@0:   request.queryString.split('&').forEach(function (val) {
michael@0:     var [name, value] = val.split('=');
michael@0:     query[name] = unescape(value);
michael@0:   });
michael@0:   if (query["continue"] == "true") {
michael@0: 
michael@0:     // Debugging information so we can figure out the hang
michael@0:     dump("file_IconTestServer.js DEBUG - Got continue command\n");
michael@0: 
michael@0:     // Get the context structure and finish the old request
michael@0:     getObjectState("context", function(obj) {
michael@0: 
michael@0:       // magic or goop, depending on how you look at it
michael@0:       savedCtx = obj.wrappedJSObject;
michael@0: 
michael@0:       // Write the rest of the data
michael@0:       savedCtx.ostream.writeFrom(savedCtx.istream, savedCtx.istream.available());
michael@0: 
michael@0:       // Close the streams
michael@0:       savedCtx.ostream.close();
michael@0:       savedCtx.istream.close();
michael@0: 
michael@0:       // Finish off 'the old response'
michael@0:       savedCtx.response.finish();
michael@0:     });
michael@0: 
michael@0:     // Finish off 'the current response'
michael@0:     response.finish();
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   // Debugging information so we can figure out the hang
michael@0:   dump("file_IconTestServer.js DEBUG - Got initial request\n");
michael@0: 
michael@0:   // Context structure - we need to set this up properly to pass to setObjectState
michael@0:   var ctx = {
michael@0:     QueryInterface: function(iid) {
michael@0:       if (iid.equals(Components.interfaces.nsISupports))
michael@0:         return this;
michael@0:       throw Components.results.NS_ERROR_NO_INTERFACE;
michael@0:     }
michael@0:   };
michael@0:   ctx.wrappedJSObject = ctx;
michael@0: 
michael@0:   // Save the response
michael@0:   ctx.response = response;
michael@0: 
michael@0:   // We're serving up a png
michael@0:   response.setHeader("Content-Type", "image/png", false);
michael@0: 
michael@0:   // Get the output stream
michael@0:   ctx.ostream = response.bodyOutputStream;
michael@0: 
michael@0:   // Ugly hack, but effective - copied from content/media/test/contentDuration1.sjs
michael@0:   var pngFile = Components.classes["@mozilla.org/file/directory_service;1"].
michael@0:                            getService(Components.interfaces.nsIProperties).
michael@0:                            get("CurWorkD", Components.interfaces.nsILocalFile);
michael@0:   var paths = "tests/layout/generic/test/file_Dolske.png";
michael@0:   var split = paths.split("/");
michael@0:   for(var i = 0; i < split.length; ++i) {
michael@0:     pngFile.append(split[i]);
michael@0:   }
michael@0: 
michael@0:   // Get an input stream for the png data
michael@0:   ctx.istream = Cc["@mozilla.org/network/file-input-stream;1"].
michael@0:                       createInstance(Components.interfaces.nsIFileInputStream);
michael@0:   ctx.istream.init(pngFile, -1, 0, 0);
michael@0: 
michael@0:   // Write the first 10 bytes, which is just boilerplate/magic bytes
michael@0:   ctx.ostream.writeFrom(ctx.istream, 10);
michael@0: 
michael@0:   // Save the context structure for retrieval when we get pinged
michael@0:   setObjectState("context", ctx);
michael@0: 
michael@0:   // Now we play the waiting game...
michael@0: 
michael@0:   // Debugging information so we can figure out the hang
michael@0:   dump("file_IconTestServer.js DEBUG - Playing the waiting game\n");
michael@0: }
michael@0: