/**
* The default implementation of this method attempts to resolve an {@link HttpRequestHandler} for
* the request URI of the given request and, if found, executes its {@link
* HttpRequestHandler#handle(HttpRequest, HttpResponse, HttpContext)} method.
*
* <p>Super-classes can override this method in order to provide a custom implementation of the
* request processing logic.
*
* @param request the HTTP request.
* @param response the HTTP response.
* @param context the execution context.
* @throws IOException in case of an I/O error.
* @throws HttpException in case of HTTP protocol violation or a processing problem.
*/
protected void doService(
final HttpRequest request, final HttpResponse response, final HttpContext context)
throws HttpException, IOException {
HttpRequestHandler handler = null;
if (this.handlerResolver != null) {
String requestURI = request.getRequestLine().getUri();
handler = this.handlerResolver.lookup(requestURI);
}
if (handler != null) {
handler.handle(request, response, context);
} else {
response.setStatusCode(HttpStatus.SC_NOT_IMPLEMENTED);
}
}
public void runServer(
final Socket socket, BufferedReader in, String line, final ThreadPool threads)
throws InterruptedException {
/**
* Special URL control Returns page with a: student information b: list of all threads in the
* thread pool c: status of each thread (waiting or URL it is currently handling) d: a button
* that shuts down the server
*/
final HttpRequestHandler controlHandler =
new HttpRequestHandler() {
public void handle(HttpRequest request, HttpResponse response) {
String threadsStatus = threads.getThreadsStatus(request.path);
String msg =
("<!DOCTYPE html><html><body>"
+ "<h1>Student Information</h1><p>Name: James Jin Park</p>"
+ "<p>SEAS login: jamespj</p>"
+ "<h1>Server Information</h1>"
+ "<p>"
+ threadsStatus
+ "</p>"
+ "<button onclick=\"location.href='/errorLog'\">View Error Log</button></br>"
+ "<p> </p>"
+ "<button onclick=\"location.href='/shutdown'\">Shutdown Server</button>"
+ "</body></html>");
response.headers.put("Content-Type", "text/html");
response.setBody(msg);
}
};
final HttpRequestHandler logHandler =
new HttpRequestHandler() {
public void handle(HttpRequest request, HttpResponse response) {
File file = new File(rootDir + "/ErrorLog.txt");
try {
BufferedReader reader = new BufferedReader(new FileReader(file));
StringBuilder builder = new StringBuilder();
String line = reader.readLine();
while (line != null) {
builder.append(line);
builder.append(System.lineSeparator());
line = reader.readLine();
}
String errorString = builder.toString();
String msg =
("<!DOCTYPE html><html><body>"
+ "<h1>Student Information</h1><p>Name: James Jin Park</p>"
+ "<p>SEAS login: jamespj</p>"
+ "<h1>Error Log</h1>"
+ "<p>"
+ errorString
+ "</p>"
+ "<button onclick=\"location.href='/control'\">Back to Control</button>"
+ "</body></html>");
response.headers.put("Content-Type", "text/html");
response.setBody(msg);
reader.close();
} catch (Exception e) {
e.printStackTrace();
String msg =
("<!DOCTYPE html><html><body>"
+ "<h1>Student Information</h1><p>Name: James Jin Park</p>"
+ "<p>SEAS login: jamespj</p>"
+ "<h1>Missing Error Log</h1>"
+ "<button onclick=\"location.href='/control'\">Back to Control</button>"
+ "</body></html>");
response.setBody(msg);
}
}
};
// try (ServerSocket serverSocket = new ServerSocket(this.port, 200)) {
// serverSocket.setSoTimeout(200); // timeout so we can periodically check flag
// System.out.println("Server started and listening for connections.");
//
// while (!ShutdownHook.isShutdown.get()) {
// try {
// final Socket socket = serverSocket.accept();
// Runnable runnable = new Runnable() {
//
// @Override
// public void run() {
try ( // all these are closeable by putting them in as arguments for try()
// InputStreamReader reader = new
// InputStreamReader(socket.getInputStream());
// BufferedReader in = new BufferedReader(reader);
PrintWriter out = new PrintWriter(socket.getOutputStream()); ) {
HttpRequest request = httpRequestParser.parse(line, in);
HttpResponse response = new HttpResponse();
String absoluteSpecialPath = null;
if (request.headers.get("Host") != null) {
absoluteSpecialPath = ("http://" + request.headers.get("Host"));
}
// System.out.println("Here is the request: \n" + request + "\n\nEnd of Transmission\n");
Route requestedRoute = null;
HttpRequestHandler handler = null;
if (request.method.toUpperCase().equals("HEAD")
&& !request.path.equals("/shutdown")
&& !request.path.equals(absoluteSpecialPath + "/shutdown")
&& !request.path.equals(absoluteSpecialPath + "/control")
&& !request.path.equals("/control")) {
request.isHead = true;
request.method = "GET";
}
if (request.method.toUpperCase().equals("HEAD") && request.path.equals("/shutdown")
|| request.path.equals(absoluteSpecialPath + "/shutdown")
|| request.path.equals(absoluteSpecialPath + "/control")
|| request.path.equals("/control")) {
requestedRoute = Route.of(request.method, "405Error");
handler = routes.get(requestedRoute);
}
if (request.method.toUpperCase().equals("POST")) {
requestedRoute = Route.of(request.method, "405Error");
handler = routes.get(requestedRoute);
}
String absolutePath = null;
if (request.headers.get("Host") != null) {
absolutePath = request.path;
request.path = request.path.replace("http://", "").replace(request.headers.get("Host"), "");
} else if ((request.path.contains("http://")) && request.version.equals("HTTP/1.0")) {
absolutePath = request.path;
request.path = request.path.replace("http://", "");
request.path = request.path.replace(request.path.split("\\/")[0], "");
} else {
absolutePath = "http://localhost:" + port + "/" + request.path;
}
File absoluteFile = null;
if (request.path.equals("/")) {
absoluteFile = new File(rootDir + "/" + request.path);
} else {
absoluteFile = new File("." + request.path);
}
// complicated path
String HTMLregex = "([^\\s]+(\\.(?i)(html))$)";
String ImageRegex = "([^\\s]+(\\.(?i)(jpg|png|gif|bmp|))$)";
String pdfRegex = "([^\\s]+(\\.(?i)(pdf))$)";
String relativePathRegex = "([^\\s]+(\\.(?i)(.))$)";
Matcher htmlFinder = Pattern.compile(HTMLregex).matcher(request.path);
Matcher imageFinder = Pattern.compile(ImageRegex).matcher(request.path);
Matcher pdfFinder = Pattern.compile(pdfRegex).matcher(request.path);
Matcher relativePathFinder = Pattern.compile(relativePathRegex).matcher(request.path);
if (relativePathFinder.find()) {
request.path = request.path.substring(0, request.path.lastIndexOf('/'));
}
File f = new File(rootDir + "/" + request.path);
if (htmlFinder.find() && f.isFile()) {
// System.out.println("Successfully found html");
requestedRoute = Route.of(request.method, "html");
handler = routes.get(requestedRoute);
} else if (htmlFinder.find() && absoluteFile.isFile()) {
// System.out.println("Successfully found html");
request.path = absolutePath;
requestedRoute = Route.of(request.method, "html");
handler = routes.get(requestedRoute);
} else if (imageFinder.find() && f.isFile()) {
// System.out.println("Successfully found image");
requestedRoute = Route.of(request.method, "image");
handler = routes.get(requestedRoute);
} else if (imageFinder.find() && absoluteFile.isFile()) {
// System.out.println("Successfully found image");
request.path = absolutePath;
requestedRoute = Route.of(request.method, "image");
handler = routes.get(requestedRoute);
} else if (f.isDirectory()) {
// System.out.println("Successfully found directory");
requestedRoute = Route.of(request.method, "directory");
handler = routes.get(requestedRoute);
} else if (absoluteFile.isDirectory()) {
// System.out.println("Successfully found directory");
request.path = absolutePath;
requestedRoute = Route.of(request.method, "directory");
handler = routes.get(requestedRoute);
} else if (pdfFinder.find() && f.isFile()) {
// System.out.println("Successfully found pdf file.");
requestedRoute = Route.of(request.method, "pdf");
handler = routes.get(requestedRoute);
} else if (pdfFinder.find() && absoluteFile.isFile()) {
// System.out.println("Successfully found pdf file.");
request.path = absolutePath;
requestedRoute = Route.of(request.method, "pdf");
handler = routes.get(requestedRoute);
} else if (f.isFile()) {
// System.out.println("Treat like text file.");
requestedRoute = Route.of(request.method, "plainText");
handler = routes.get(requestedRoute);
} else if (absoluteFile.isFile()) {
// System.out.println("Treat like text file.");
request.path = absolutePath;
requestedRoute = Route.of(request.method, "plainText");
handler = routes.get(requestedRoute);
} else { // root, special URLs
requestedRoute = Route.of(request.method, request.path);
handler = routes.get(requestedRoute);
}
if ((requestedRoute.method.equals(Route.of("GET", "/control").method)
&& requestedRoute.path.equals(Route.of("GET", "/control").path))
|| ((requestedRoute.method.equals(Route.of("GET", absolutePath + "/control").method)
&& requestedRoute.path.equals(Route.of("GET", absolutePath + "/control").path)))) {
handler = controlHandler;
}
// shutdown handler
if ((requestedRoute.method.equals(Route.of("GET", "/shutdown").method)
&& requestedRoute.path.equals(Route.of("GET", "/shutdown").path))
|| ((requestedRoute.method.equals(
Route.of("GET", absoluteSpecialPath + "/shutdown").method)
&& requestedRoute.path.equals(
Route.of("GET", absoluteSpecialPath + "/shutdown").path)))) {
handler = shutdownHandler;
}
// log handler
if ((requestedRoute.method.equals(Route.of("GET", "/errorLog").method)
&& requestedRoute.path.equals(Route.of("GET", "/errorLog").path))
|| ((requestedRoute.method.equals(
Route.of("GET", absoluteSpecialPath + "/errorLog").method)
&& requestedRoute.path.equals(
Route.of("GET", absoluteSpecialPath + "/errorLog").path)))) {
handler = logHandler;
}
if ((request.method.equals("Missing"))
|| (request.path.equals("Missing"))
|| (request.version.equals("Missing"))
|| (request.headers.get("Host") == null && request.version.equals("HTTP/1.1"))) {
requestedRoute = Route.of("GET", "400Error");
handler = routes.get(requestedRoute);
}
if ((!request.method.equals("GET") || request.method.equals("HEAD"))
&& (!request.method.equals("Missing"))) {
requestedRoute = Route.of("GET", "501Error");
handler = routes.get(requestedRoute);
}
if (handler == null) {
requestedRoute = Route.of("GET", "404Error");
handler = routes.get(requestedRoute);
} else { // handler is not null but we need to check if-modified header
if (request.headers.get("If-Modified-Since") != null
&& request.version.equals("HTTP/1.1")) {
if (!request.isHead) {
File file = new File("." + request.path);
boolean tempIsModified = false;
try {
tempIsModified =
httpRequestParser.checkDate(request.headers.get("If-Modified-Since"), file);
} catch (ParseException e) {
e.printStackTrace();
}
if (!tempIsModified) {
requestedRoute =
Route.of("GET", "304Error"); // Not modified error. sets isModified to false
handler = routes.get(requestedRoute);
}
} else { // If-Modified-Since does not work methods other than "GET"
requestedRoute = Route.of("GET", "501Error");
handler = routes.get(requestedRoute);
}
}
if (request.headers.get("If-Unmodified-Since") != null
&& request.version.equals("HTTP/1.1")) {
File file = new File("." + request.path);
boolean tempIsModified = false;
try {
tempIsModified =
httpRequestParser.checkDate(request.headers.get("If-Unmodified-Since"), file);
} catch (ParseException e) {
e.printStackTrace();
}
if (tempIsModified) {
requestedRoute =
Route.of("GET", "412Error"); // Not modified error. sets isModified to false
handler = routes.get(requestedRoute);
}
}
}
handler.handle(request, response);
if (request.version.equals("HTTP/1.1")) {
out.println("HTTP/1.1 100 Continue");
out.println("");
}
out.println("HTTP/1.1 " + response.getStatus()); // Response includes HTTP version
final Date currentTime = new Date();
final SimpleDateFormat dateTemplate = new SimpleDateFormat("EEE, d MMM yyyy hh:mm:ss");
dateTemplate.setTimeZone(TimeZone.getTimeZone("GMT"));
if (!request.isError) { // if the response is not error response
out.println("Date: " + dateTemplate.format(currentTime) + " GMT"); // Response includes date
out.println("Server: James's HTTP Server"); // Response includes host
// System.out.println("HTTP/1.1 " +
// response.getStatus());//DELETE
}
if (!request.isModified) { // should only get in here if the document IS NOT MODIFIED or FALSE
out.println("Date: " + dateTemplate.format(currentTime) + " GMT"); // Response includes date
out.println("");
}
if (!request.isModified) { // should only get in here if the document IS NOT MODIFIED or FALSE
out.println("");
}
for (Map.Entry<String, Object> header : response.headers.entrySet()) {
out.println(header.getKey() + ": " + header.getValue());
// System.out.println("test " + header.getKey() + ": " +
// header.getValue());//DELETE
}
if (!request.isHead) { // if the request was not a HEAD method and is modified
if (request.isModified) {
if (response.getBody() != null && response.getBody().length() > 0) {
out.println("");
out.println(response.getBody());
out.flush();
}
if (response.getMyBytes() != null) {
BufferedOutputStream output = new BufferedOutputStream(socket.getOutputStream());
output.write(
("HTTP/1.1 " + response.getStatus()).getBytes()); // Response includes HTTP version
output.write("\r\n".getBytes());
output.write(
("Date: " + dateTemplate.format(currentTime) + " GMT")
.getBytes()); // Response includes date
output.write("\r\n".getBytes());
output.write("Server: James's HTTP Server".getBytes()); // Response includes host
for (Map.Entry<String, Object> header : response.headers.entrySet()) {
output.write("\r\n".getBytes());
output.write((header.getKey() + ": " + header.getValue()).getBytes());
}
output.write("\r\n".getBytes());
output.write("\r\n".getBytes());
output.write(response.getMyBytes(), 0, response.getMyBytes().length);
output.flush();
output.close();
}
}
} else {
out.flush();
}
out.println(
"Connection: close"); // Connection automatically closes. No persistent connection.
if (request.headers.get("Connection").equals("close")) {
// currently do nothing.
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
// }
// };
// threads.run(runnable);//adds this instance of runnable (request) to the
// queue of the thread pool
// } catch (SocketTimeoutException ste) {
// // fine poll flag; should be timing out
// }
// }
// threads.killAllThreads();
// serverSocket.close();
// } catch (Exception e) {
// System.err.println("Error! Could not connect to socket:");
// e.printStackTrace();
// System.exit(1); //server shuts down due to error
// }
// try {
// Thread.sleep(2000);
// } catch (InterruptedException e) {
// }
// int count = 1;
// while(threads.howManyThreadsAlive() > 0 ){
// if (count < 6){
// System.out.println("Waiting on " + threads.howManyThreadsAlive() + " thread(s) to
// exit. " + "Loop #" + count);
// } else {
// System.out.println("Manually shutting down thread(s).");
// threads.emergencyShutdown();
// break;
// }
// try {
// count += 1;
// Thread.sleep(3000);
// } catch (InterruptedException e) {
// e.printStackTrace();
// }
// }
// System.out.println("Server shut down.");
}