Class HttpServer

java.lang.Object

HttpServer

public class HttpServer
extends java.lang.Object

HttpServer is a HTTP/1.0 server that handles HTTP/[0.9 | 1.0 | 1.1] requests. It is started by "java HttpRequest port directory". The server will connect to the port given when running the server (has to be an integer in [1024, 65535]), and the directory argument given will be the only place where files can be collected from, that is, only requests that search for a file in the current directory or in its subdirectories will get an actual file in return. Otherwise the header will contain a suitable error code:
400 Bad Request - If the request method is not any of "GET", "HEAD" or "POST" or if any part of the request was not valid.
403 Forbidden - The file exists but we have no access permission or the client has tried to navigate up one or several levels in the file system using "..".
404 Not Found - File not found in the start directory.
501 Not Implemented - The HEAD and POST request methods are not yet implemented and will therefore yield this error.
HttpServer uses threads, which means that there is no need to wait for an ongoing connection to close in order to accept the next since they can be handled simultaneously.

Author:

tm11ajn

Field Summary

Fields

Modifier and Type	Field and Description
private static java.net.Socket	connectionSocket
private static InputDataParser	inputDataParser
private static java.net.ServerSocket	serverSocket
private static SocketThread	socketThread

Constructor Summary

Constructors

Constructor and Description
HttpServer()

Method Summary

Methods

Modifier and Type	Method and Description
private static java.net.ServerSocket	createServerSocket(int port) Creates a server socket.
private static void	handleConnections(java.io.File directory) Handles the connections by listening to the socket and accepting any incoming connection.
static void	main(java.lang.String[] args) Main method for the HttpServer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

serverSocket

private static java.net.ServerSocket serverSocket

connectionSocket

private static java.net.Socket connectionSocket

socketThread

private static SocketThread socketThread

inputDataParser

private static InputDataParser inputDataParser

Constructor Detail

HttpServer

public HttpServer()

Method Detail

createServerSocket

private static java.net.ServerSocket createServerSocket(int port)

Creates a server socket. If it fails, the HttpServer can not be run and the application is terminated.

Parameters:

port: - int - The port number.

Returns:

ServerSocket - The created server socket.

handleConnections

private static void handleConnections(java.io.File directory)

Handles the connections by listening to the socket and accepting any incoming connection. For each connection, a thread is created to handle that particular connection. If a socket fails to be created (the accept fails), we simply do not pass it to a thread.

Parameters:

directory: - File - The start directory from where to collect files.

main

public static void main(java.lang.String[] args)

Main method for the HttpServer.

Parameters:

args: - String[] - Command-line input arguments.