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package hanze.ga.wt3.http;
import hanze.ga.wt3.xml.Xml;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.LinkedList;
public class HTTPGetConnection implements Runnable {
private Socket socket;
private PrintWriter outPutWriter;
private BufferedReader inputReader;
private HTTPQ2AppChannel httpObject;
public HTTPGetConnection(Socket accept, HTTPQ2AppChannel httpq2AppChannel) {
this.socket = accept;
this.httpObject = httpq2AppChannel;
}
private String findId(String inQueue) {
File tmpFile = new File("C:/queuetemp.tmp");
try {
FileWriter fw = new FileWriter("C:/queuetemp.tmp");
fw.write(inQueue);
fw.close();
} catch (Exception e) {
// Doe niets
}
Xml xmlParser = new Xml("C:/queuetemp.tmp", "message");
String reqId = xmlParser.child("id").content();
tmpFile.delete();
return reqId;
}
private String getHttpQueueName() {
return this.httpObject.getSourceQueue().getqName();
}
private String getId(String queryType) {
int start = queryType.indexOf("?ID=") + 4;
queryType = queryType.replace(" HTTP/1.1", "");
return queryType.substring(start).trim();
}
private String getQueueName(String header) {
// "GET /<<QueueNaam>> HTTP/1.1"
if (header.indexOf("?") > 0) { // Has ID
return header.substring(5, header.indexOf("?ID="));
}
// "GET /<<QueueNaam>> HTTP/1.1"
return header.substring(5, header.indexOf(" HTTP/1.1"));
}
private void initListen() {
System.out.println("[HTTPQ2AppChannel] Connection received from "
+ socket.getInetAddress().getHostName());
try {
inputReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
outPutWriter = new PrintWriter(socket.getOutputStream(), true);
} catch (IOException e) {
e.printStackTrace();
}
}
private void listenAndHandle() {
// Luister naar input van gebruiker
try {
String inputLine = inputReader.readLine();
while (inputLine != null) {
if (inputLine.startsWith("GET /")) {
String queryType = this.getHttpQueueName();
String qName = this.getQueueName(inputLine);
if (queryType.equals(qName)) {
this.reply(inputLine);
break;
} else {
System.err.println("Queue " + qName + " niet gevonden");
outPutWriter.println("HTTP/1.1 404 Not Found");
break;
}
}
// Volgende line
inputLine = inputReader.readLine();
}
// Sluiten
outPutWriter.close();
inputReader.close();
} catch (Exception e) {
// do nothing
System.err.println("Fout in connectie");
e.printStackTrace();
}
}
private void reply(String queryType) {
if (queryType.indexOf("?ID=") > 0) { // Specifiek ID
this.replyId(this.getId(queryType));
} else { // Overzicht
this.replyList();
}
}
private void replyId(String queryId) {
LinkedList<String> queued = this.httpObject.getSourceQueue().peekEntireQueue();
if (queued.size() > 0) {
for (String inQueue : queued) {
if (queryId.equals(this.findId(inQueue))) {
outPutWriter.write("HTTP/1.1 200 OK\n");
outPutWriter.write("Content-Length=" + inQueue.length() + "\n");
outPutWriter.write(inQueue);
// Verwijder
this.httpObject.getSourceQueue().deleteFromQueue(inQueue);
return;
}
}
}
outPutWriter.write("HTTP/1.1 404 Not Found");
}
private void replyList() {
LinkedList<String> queued = this.httpObject.getSourceQueue().peekEntireQueue();
if (queued.size() > 0) {
LinkedList<String> idOutput = new LinkedList<String>();
int contentLength = 0;
for (String inQueue : queued) {
String inputId = "ID=" + this.findId(inQueue) + "\n";
idOutput.add(inputId);
contentLength += inputId.length();
}
outPutWriter.write("HTTP/1.1 200 OK\n");
outPutWriter.write("Content-Length=" + contentLength + "\n");
for (String id : idOutput) {
System.out.println(id);
outPutWriter.write(id.trim());
}
}
}
@Override
public void run() {
// Open connection
this.initListen();
// Input lezen
this.listenAndHandle();
}
} |
