Delete unused class

1 files changed, 0 insertions, 315 deletions

diff --git a/src/main/java/com/btr/proxy/search/wpad/WpadProxySearchStrategyWithDHPC.java b/src/main/java/com/btr/proxy/search/wpad/WpadProxySearchStrategyWithDHPC.java
deleted file mode 100644
index bb56cc0..0000000
--- a/src/main/java/com/btr/proxy/search/wpad/WpadProxySearchStrategyWithDHPC.java
+++ /dev/null
@@ -1,315 +0,0 @@
-package com.btr.proxy.search.wpad;
-
-import java.io.BufferedReader;
-import java.io.FileReader;
-import java.io.IOException;
-import java.io.UnsupportedEncodingException;
-import java.net.HttpURLConnection;
-import java.net.InetAddress;
-import java.net.Proxy;
-import java.net.ProxySelector;
-import java.net.SocketException;
-import java.net.URL;
-import java.net.UnknownHostException;
-import java.util.Properties;
-import java.util.Random;
-import java.util.StringTokenizer;
-
-import com.btr.proxy.search.ProxySearchStrategy;
-import com.btr.proxy.search.wpad.dhcp.DHCPMessage;
-import com.btr.proxy.search.wpad.dhcp.DHCPOptions;
-import com.btr.proxy.search.wpad.dhcp.DHCPSocket;
-import com.btr.proxy.util.Logger;
-import com.btr.proxy.util.Logger.LogLevel;
-import com.btr.proxy.util.ProxyException;
-import com.btr.proxy.util.ProxyUtil;
-
-/*****************************************************************************
- * Uses automatic proxy script search (WPAD) to find an PAC file automatically.
- * <p>
- * Note: at the moment only the DNS name guessing schema is implemented. All
- * others are missing.
- * </p>
- * <p>
- * For more information about WPAD: <a
- * href="http://en.wikipedia.org/wiki/Web_Proxy_Autodiscovery_Protocol"
- * >Web_Proxy_Autodiscovery_Protocol</a>
- * </p>
- * <p>
- * Outdated RFC draft: <a href=
- * "http://www.web-cache.com/Writings/Internet-Drafts/draft-ietf-wrec-wpad-01.txt"
- * >draft-ietf-wrec-wpad-01.txt</a>
- * </p>
- * 
- * @author Bernd Rosstauscher (proxyvole@rosstauscher.de) Copyright 2009
- ****************************************************************************/
-
-public class WpadProxySearchStrategyWithDHPC implements ProxySearchStrategy {
-	DHCPSocket bindSocket = null;
-	byte hwaddr[] = new byte[16];
-	InetAddress serverIP;
-	int portNum;
-	boolean gSentinel;
-	
-	/*************************************************************************
-	 * Constructor
-	 ************************************************************************/
-
-	public WpadProxySearchStrategyWithDHPC() {
-		super();
-	}
-
-	/*************************************************************************
-	 * Loads the proxy settings from a PAC file. The location of the PAC file is
-	 * determined automatically.
-	 * 
-	 * @return a configured ProxySelector, null if none is found.
-	 * @throws ProxyException
-	 *             on error.
-	 ************************************************************************/
-
-	public ProxySelector getProxySelector() throws ProxyException {
-		try {
-			Logger.log(getClass(), LogLevel.TRACE, "Using WPAD to find a proxy");
-
-			String pacScriptUrl = detectScriptUrlPerDHCP();
-			if (pacScriptUrl == null) {
-				pacScriptUrl = detectScriptUrlPerDNS();
-			}
-			if (pacScriptUrl == null) {
-				return null;
-			}
-			Logger.log(getClass(), LogLevel.TRACE, "PAC script url found: {0}",
-					pacScriptUrl);
-			return ProxyUtil.buildPacSelectorForUrl(pacScriptUrl);
-		} catch (IOException e) {
-			Logger.log(getClass(), LogLevel.ERROR, "Error during WPAD search.",
-					e);
-			throw new ProxyException(e);
-		}
-	}
-
-	/*************************************************************************
-	 * Loads the settings and stores them in a properties map.
-	 * 
-	 * @return the settings.
-	 ************************************************************************/
-
-	public Properties readSettings() {
-		try {
-			String pacScriptUrl = detectScriptUrlPerDHCP();
-			if (pacScriptUrl == null) {
-				pacScriptUrl = detectScriptUrlPerDNS();
-			}
-			if (pacScriptUrl == null) {
-				return null;
-			}
-			Properties result = new Properties();
-			result.setProperty("url", pacScriptUrl);
-			return result;
-		} catch (IOException e) {
-			// Ignore and return empty properties.
-			return new Properties();
-		}
-	}
-
-	/*************************************************************************
-	 * Uses DNS to find the script URL. Attention: this detection method is
-	 * known to have some severe security issues.
-	 * 
-	 * @return the URL, null if not found.
-	 ************************************************************************/
-
-	private String detectScriptUrlPerDNS() throws IOException {
-		String result = null;
-		// String fqdn = InetAddress.getLocalHost().getCanonicalHostName();
-
-		Logger.log(getClass(), LogLevel.TRACE, "Searching per DNS guessing.");
-		// Logger.log(getClass(), LogLevel.INFO, "fqdn: ", fqdn);
-
-		/**
-		 * Reading address from "/etc/resolv.conf"; file looks like:
-		 * 
-		 * # Dynamic resolv.conf(5) file for glibc resolver(3) generated by
-		 * resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE
-		 * OVERWRITTEN nameserver 127.0.1.1 search ruf.uni-freiburg.de
-		 * lp.ruf.uni-freiburg.de
-		 */
-
-		FileReader fr = new FileReader("/etc/resolv.conf");
-		BufferedReader br = new BufferedReader(fr);
-
-		String input;
-		// using the 4th line of the file.
-		br.readLine();
-		br.readLine();
-		br.readLine();
-		input = br.readLine();
-
-		String[] addresses = input.split(" ");
-		// the first one is "search" and afterwards addresses are following.
-
-		for (int i = 0; i < addresses.length; ++i) {
-			String address = addresses[i];
-			int index = -1;
-			do {
-				address = address.substring(index + 1);
-
-				// if we are already on TLD level then escape
-				if (address.indexOf('.') == -1) {
-					break;
-				}
-
-				// Try to connect to URL
-				try {
-					URL lookupURL = new URL("http://wpad." + address
-							+ "/wpad.dat");
-					Logger.log(getClass(), LogLevel.TRACE, "Trying url: {0}",
-							lookupURL);
-
-					HttpURLConnection con = (HttpURLConnection) lookupURL
-							.openConnection(Proxy.NO_PROXY);
-					con.setInstanceFollowRedirects(true);
-					con.setRequestProperty("accept",
-							"application/x-ns-proxy-autoconfig");
-					if (con.getResponseCode() == 200) {
-						result = lookupURL.toString();
-						return result;
-					}
-					con.disconnect();
-				} catch (UnknownHostException e) {
-					Logger.log(getClass(), LogLevel.DEBUG, "Not available!");
-					// Not a real error, try next address
-				}
-				index = address.indexOf('.');
-			} while (index != -1);
-		}
-
-		return null;
-	}
-
-	/*************************************************************************
-	 * Uses DHCP to find the script URL.
-	 * 
-	 * @return the URL, null if not found.
-	 ************************************************************************/
-
-	private String detectScriptUrlPerDHCP() {
-		Logger.log(getClass(), LogLevel.DEBUG,
-				"Searching per DHCP not supported yet.");
-		
-		// create socket.
-		try {
-			// bindSocket = new DHCPSocket(DHCPMessage.CLIENT_PORT);
-			// --> Not able to use ports under 1024 without being root.
-			this.bindSocket = new DHCPSocket(1068);
-		} catch (SocketException e) {
-			System.err.println(e);
-			return null;
-		}
-		
-		
-		
-		return null;
-	}
-
-	// Sends DHCPDISCOVER Message and returns server message
-	private DHCPMessage SendDiscover() {
-		DHCPSocket bindSocket = null;
-		try {
-			bindSocket = new DHCPSocket(1068);
-		} catch (SocketException e1) {
-			// TODO bjoern 29.10.2014 Auto-generated catch block
-			e1.printStackTrace();
-			return null;
-		}
-
-		Random ranXid = new Random();
-		DHCPMessage messageOut = new DHCPMessage(DHCPMessage.BROADCAST_ADDR,
-				DHCPMessage.SERVER_PORT);
-		DHCPMessage messageIn = new DHCPMessage(DHCPMessage.BROADCAST_ADDR,
-				DHCPMessage.SERVER_PORT);
-		try {
-			// Specify type of message: 1 = request - message, 2 = reply - message
-			messageOut.setOp((byte) 1);
-			// set Hardware type: 1 = Ethernet, 6 = IEEE 802 Networks, ...
-			messageOut.setHtype((byte) 1); // 1 = ethernet
-			// set hardware address length: 6 for MAC address
-			messageOut.setHlen((byte) 6);
-			messageOut.setHops((byte) 0);
-			// set session ID for later comparing with incoming message.
-			messageOut.setXid(ranXid.nextInt());
-			messageOut.setSecs((short) 0);
-			messageOut.setFlags((short) 0x8000);
-			// set client hardware address, in this case my own hardware address of eth0.
-			messageOut.setChaddr(ChaddrToByte("D8:D3:85:80:8F:C9"));
-
-			byte[] opt = new byte[1];
-			byte[] wpadOpt = new byte[1];
-			opt[0] = DHCPMessage.DHCPDISCOVER;
-
-			// change message type
-			messageOut.setOption(DHCPOptions.OPTION_DHCP_MESSAGE_TYPE, opt);
-			wpadOpt[0] = DHCPMessage.OPTION_DHCP_WPAD;
-			messageOut.setOption(DHCPOptions.OPTION_DHCP_PARAMETER_REQUEST_LIST, wpadOpt);
-//			messageOut.setOption(DHCPOptions.OPTION_DHCP_IP_ADRESS_REQUESTED,
-//					offerMessageIn.getYiaddr());
-			
-			bindSocket.send(messageOut); // send DHCPREQUEST
-			System.out.println("Sending DHCPDISCOVER ...");
-			boolean sentinal = true;
-			int counter = 0;
-			while (sentinal) {
-				if (counter == 2) { return null; }
-				if (bindSocket.receive(messageIn)) {
-					if (messageOut.getXid() == messageIn.getXid()) {
-						sentinal = false;
-					} else {
-						bindSocket.send(messageOut);
-						counter++;
-					}
-				} else {
-					bindSocket.send(messageOut);
-					counter++;
-				}
-			}
-		} catch (SocketException e) {
-			System.err.println(e);
-			return null;
-		} catch (IOException e) {
-			System.err.println(e);
-			return null;
-		} finally {
-			try {
-				bindSocket.close();
-			} catch (Exception e) {
-				// do nothing.
-			}
-		} // end catch
-		return messageIn;
-	}
-
-	// Main method for testing.
-	public static void main(String[] args) throws UnsupportedEncodingException {
-		WpadProxySearchStrategyWithDHPC wPSSDHCP = new WpadProxySearchStrategyWithDHPC();
-		DHCPMessage serverAnswer = wPSSDHCP.SendDiscover();
-
-		Logger.log(WpadProxySearchStrategyWithDHPC.class, LogLevel.INFO,
-				"DHCP serverAnswer: {0}", new String(serverAnswer.getOption(DHCPMessage.OPTION_DHCP_WPAD), "UTF-8"));
-	}
-
-	private byte[] ChaddrToByte(String inChaddr) {
-		StringTokenizer token = new StringTokenizer(inChaddr, ":");
-		Integer tempInt = new Integer(0);
-		byte outHwaddr[] = new byte[16];
-		int temp;
-		int i = 0;
-		while (i < 6) {
-			temp = tempInt.parseInt(token.nextToken(), 16);
-			outHwaddr[i] = (byte) temp;
-			i++;
-		}
-		return outHwaddr;
-	}
-
-}