Lab1 - WebServer Assignment

--==Authors==--
Ore Poran - 026488858
Yoni Kilzi - 

Classes:
WebServer (main)
TCPConnection
HttpRequest
HttpResponse

Utility Class:
ConfigUtil (static)

Exception Classes:
WebServerException (abstract)
InternalErrorException
NotFoundException
BadRequestException

Files:
compile.bat
run.bat
README.txt

----------------Steps to run the webserver -----------------

1. Create a directory 'serverroot' in your root directory C:\
2. Create an HTML file 'index.html' in your new serverroot directory
3. Compile the WebServer.java class
4. Run the WebServer class
5. Go to your browser and type "localhost:8080"

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============== WebServer ===============
 The main class - Web server accepts connections and creates TCP connection that handle each
request. The threadQueue max size is decided in the config.ini file, and each
new connection (not new request!) gets a new thread Requests that belong to
the same IP, go to the thread that is handling this TCP connection

============ HttpRequest ===============
 This class is initiated by the TCP connection class and parses/handles a
request. It reads the input stream, validates the request and the headers,
and eventually creates a HttpResponse instance. In the case where the request is
not valid, or any of the validations fail (i.e file not found, or unsupported
method) - an error is thrown which calls for an Http Error Response method
with the appropriate text. In the case where the connection with the
client is lost at some time, an exception is thrown.

============ HttpResponse ===============
 This class writes to the output stream of the socket given by the request. It
handles all the supported responses as configured by the config Util class.

============ ConfigUtil ===============
 This class holds all the constance variables of the project, 
including the Config.ini variables that were set.

============ TCPConnection ===============
 Handles a client request(s), If there is something to read in the socket, this
client creates an HTTP request instance. In the case where the protocol is
non-persistent, the thread dequeues itself from the Webserver thread queue
after handling the request, and this TCP connection dies
This connection also dequeues itself when the client stops the connection

=============WebServerException===============
 This class and all its sub-classes send an HTTPErrorResponse to the socket, with the appropriate text.