HTTP Server Sample

HTTP Server Sample

Web Server ========== This sample is a demonstration of Chrome's new networking stack. Chrome now has the ability to listen on a tcp port AND to accept. How it works Create a socket and convert it to a server socket. socket.create("tcp", {}, function(_socketInfo) { socketInfo = _socketInfo; // Cache globally [eek] socket.listen(socketInfo.socketId, "127.0.0.1", 8080, 20, function(result) { //Accept the first response socket.accept(socketInfo.socketId, onAccept); }); }); Create an onAccept handler that is triggered for an incomming request. var onAccept = function(acceptInfo) { // This is a request that the system is processing. // Read the data. socket.read(acceptInfo.socketId, function(readInfo) { // Parse the request. var data = arrayBufferToString(readInfo.data); // We only want to handle get requests if(data.indexOf("GET ") == 0) { // we can only deal with GET requests var uriEnd = data.indexOf(" ", 4); if(uriEnd < 0) { /* throw a wobbler */ return; } var uri = data.substring(4, uriEnd); var file = filesMap[uri]; // pick out the file we want to server if(!!file == false) { /* File does not exist */ return; } write200Response(acceptInfo.socketId, file); } else { // Throw an error socket.destroy(acceptInfo.socketId); // We need to say that we can accept another incoming request. socket.accept(socketInfo.socketId, onAccept); } }); }; Write the response back to the client. var write200Response = function(socketId, file) { var contentType = (file.type === "") ? "text/plain" : file.type; var contentLength = file.size; // Create an ArrayBuffer for the HTTP response. var header = stringToUint8Array("HTTP/1.0 200 OK\nContent-length: " + file.size + "\nContent-type:" + contentType + "\n\n"); var outputBuffer = new ArrayBuffer(header.byteLength + file.size); var view = new Uint8Array(outputBuffer) view.set(header, 0); // Read the file from the filesystem. var fileReader = new FileReader(); fileReader.onload = function(e) { view.set(new Uint8Array(e.target.result), header.byteLength); // Write it out to the client that made the request socket.write(socketId, outputBuffer, function(writeInfo) { // Kill the client socket socket.destroy(socketId); // We need to say that we can accept another incoming request. socket.accept(socketInfo.socketId, onAccept); See the source code at https://github.com/GoogleChrome/chrome-app-samples/tree/master/samples/webserver