// Proge: v6rguprogramm
// Grupp:
// Silver Salonen
// Virgo Vardja
// Kait-Kaarel Kamla
import java.io.*;
import java.net.*;
import java.util.regex.*;
public class Random {
public static int Requests = 0;
public static double RandSum = 0;
// Loome serversocketi ja hakkame requeste handleerima, tehes igayhe tarbeks oma threadi
public static void main(String[] args) throws IOException {
ServerSocket ss = new ServerSocket(80);
while (true) {
new RndThread(ss.accept());
}
}
}
class RndThread extends Thread {
Socket mySock;
String ReqLine;
String Request = "";
String Response = "ok";
int maxrnd;
int ourRnd;
public RndThread(Socket inSock) {
mySock = inSock;
start();
}
public void run() {
try {
PrintWriter valja = new PrintWriter(mySock.getOutputStream(), true);
BufferedReader sisse =
new BufferedReader(
new InputStreamReader(mySock.getInputStream()));
// Hakkame requesti lugema
ReqLine = sisse.readLine();
while (!ReqLine.equals("")) {
// Tegelikult huvitab meid HTTP pa"ringust vaid rida 'GET /midagi HTTP/midagi'
if (ReqLine.startsWith("GET /")) {
// Yritame matchida patternit...
Pattern p = Pattern.compile("^GET /(.*?) .*");
Matcher m = p.matcher(ReqLine);
// ... ja tekitame muutujasse 'Request' ainult soovitud urli.
Request = m.replaceAll("$1");
// Kui urliks on 'QUIT' siis l6petame proge to"o"
if (Request.compareTo("QUIT") == 0)
System.exit(0);
// Kui url on tyhi, siis seame maxrnd'iks 10
else if (Request.length() == 0)
maxrnd = 10;
// Vastasel juhul seame maxrnd'iks kysitud arvu
else
try {
maxrnd = Integer.parseInt(Request);
// Oops. Request ei olnudki arv.
} catch (Exception e) {
Response = "bad";
}
}
ReqLine = sisse.readLine();
}
// Paistab, et saime teada sobiva piirarvu. Genereerime juhuarvu.
if (Response.compareTo("ok") == 0) {
valja.println("HTTP/1.1 200 OK");
valja.println("Server: Random v.1");
valja.println("Content-type: text/html");
valja.println();
ourRnd = (int) Math.round(Math.random() * maxrnd);
// Lisame statistikasse
Random.Requests++;
Random.RandSum += ourRnd;
valja.println(" Random ");
valja.println("");
valja.println("Sinu tänane õnnenumber on: " + ourRnd + "
");
// ja prindime statistika kasutaja jaoks va"lja
valja.println("Requeste praeguseks hetkeks: " + Random.Requests + "
");
valja.println("Kõikide senitekitatud randomite keskmine:" +
Math.round(Random.RandSum / Random.Requests) + "
");
valja.println("Genereeri juhuarv maksimumiga 10
");
valja.println("Genereeri juhuarv maksimumiga 100
");
valja.println("Genereeri juhuarv maksimumiga 1000");
valja.println("");
// Saime midagi, mida me ei oodanud. Anname kasutajale teada.
} else {
valja.println("HTTP/1.1 400 Bad Request");
valja.println("Server: Random v.1");
valja.println("Content-type: text/plain");
valja.println();
valja.println("Arusaamatu päring: " + Request);
}
mySock.close();
} catch (Exception e) {
System.out.println("Crash: " + e);
}
}
}