From ba7115e5e1e6974e229188cd747e4e21f233185f Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Fri, 13 Jan 2017 13:38:56 +0100
Subject: Minor tweaks

---
 .../proxy/search/wpad/WpadProxySearchStrategy.java |  4 +-
 src/main/java/com/btr/proxy/util/ProxyUtil.java    | 76 +++++++++++++---------
 2 files changed, 49 insertions(+), 31 deletions(-)

diff --git a/src/main/java/com/btr/proxy/search/wpad/WpadProxySearchStrategy.java b/src/main/java/com/btr/proxy/search/wpad/WpadProxySearchStrategy.java
index 249a889..e559d62 100644
--- a/src/main/java/com/btr/proxy/search/wpad/WpadProxySearchStrategy.java
+++ b/src/main/java/com/btr/proxy/search/wpad/WpadProxySearchStrategy.java
@@ -111,9 +111,9 @@ public class WpadProxySearchStrategy implements ProxySearchStrategy {
 		try {
 			fqdn = InetAddress.getLocalHost().getCanonicalHostName();
 		} catch (UnknownHostException e2) {
-			// No successfull, try other methods
+			// Not successful, try other methods
 		}
-		if (fqdn != null && (index = fqdn.indexOf('.')) != -1) {
+		if (fqdn != null && !fqdn.matches("\\d+\\.\\d+\\.\\d+\\.\\d+") && (index = fqdn.indexOf('.')) != -1) {
 			ret = tryUrl("http://wpad." + fqdn.substring(index + 1) + "/wpad.dat");
 			if (ret != null)
 				return ret;
diff --git a/src/main/java/com/btr/proxy/util/ProxyUtil.java b/src/main/java/com/btr/proxy/util/ProxyUtil.java
index aad9293..6bbaa30 100644
--- a/src/main/java/com/btr/proxy/util/ProxyUtil.java
+++ b/src/main/java/com/btr/proxy/util/ProxyUtil.java
@@ -4,6 +4,7 @@ import java.net.Proxy;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.concurrent.atomic.AtomicReference;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -11,50 +12,54 @@ import com.btr.proxy.selector.fixed.FixedProxySelector;
 import com.btr.proxy.selector.pac.PacProxySelector;
 import com.btr.proxy.selector.pac.PacScriptSource;
 import com.btr.proxy.selector.pac.UrlPacScriptSource;
+import com.btr.proxy.util.Logger.LogLevel;
 
 /*****************************************************************************
  * Small helper class for some common utility methods.
- *
+ * 
  * @author Bernd Rosstauscher (proxyvole@rosstauscher.de) Copyright 2009
  ****************************************************************************/
 
 public class ProxyUtil {
-	
+
 	public static final int DEFAULT_PROXY_PORT = 80;
-	
+
 	private static List<Proxy> noProxyList;
-    private static Pattern pattern = Pattern.compile("\\w*?:?/*([^:/]+):?(\\d*)/?");
-	
+	private static Pattern pattern = Pattern.compile("\\w*?:?/*([^:/]+):?(\\d*)/?");
+
 	/*************************************************************************
 	 * Parse host and port out of a proxy variable.
+	 * 
 	 * @param proxyVar the proxy string. example: http://192.168.10.9:8080/
 	 * @return a FixedProxySelector using this settings, null on parse error.
 	 ************************************************************************/
-	
+
 	public static FixedProxySelector parseProxySettings(String proxyVar) {
 		if (proxyVar == null || proxyVar.trim().length() == 0) {
 			return null;
 		}
 		Matcher matcher = pattern.matcher(proxyVar);
 		if (matcher.matches()) {
-		    String host = matcher.group(1);
-		    int port;
-		    if (!"".equals(matcher.group(2))) {
-		        port = Integer.parseInt(matcher.group(2));
-		    } else {
-		        port = DEFAULT_PROXY_PORT;
-		    }
-            return new FixedProxySelector(host.trim(), port);
+			String host = matcher.group(1);
+			int port;
+			if (!"".equals(matcher.group(2))) {
+				port = Integer.parseInt(matcher.group(2));
+			} else {
+				port = DEFAULT_PROXY_PORT;
+			}
+			return new FixedProxySelector(host.trim(), port);
 		} else {
-		    return null;
+			return null;
 		}
 	}
-	
+
 	/*************************************************************************
-	 * Gets an unmodifiable proxy list that will have as it's only entry an DIRECT proxy.
+	 * Gets an unmodifiable proxy list that will have as it's only entry an
+	 * DIRECT proxy.
+	 * 
 	 * @return a list with a DIRECT proxy in it.
 	 ************************************************************************/
-	
+
 	public static synchronized List<Proxy> noProxyList() {
 		if (noProxyList == null) {
 			ArrayList<Proxy> list = new ArrayList<Proxy>(1);
@@ -63,22 +68,35 @@ public class ProxyUtil {
 		}
 		return noProxyList;
 	}
-	
+
 	/*************************************************************************
 	 * Build a PAC proxy selector for the given URL.
+	 * 
 	 * @param url to fetch the PAC script from.
-	 * @return a PacProxySelector or null if it is not possible to build a working
-	 * selector.
+	 * @return a PacProxySelector or null if it is not possible to build a
+	 *         working
+	 *         selector.
 	 ************************************************************************/
-	
-	public static PacProxySelector buildPacSelectorForUrl(String url) {
-		PacProxySelector result = null;
-		PacScriptSource pacSource = new UrlPacScriptSource(url);
-		if (pacSource.isScriptValid()) {
-			result = new PacProxySelector(pacSource);
+
+	public static PacProxySelector buildPacSelectorForUrl(final String url) {
+		Logger.log(ProxyUtil.class, LogLevel.TRACE, "Fetching PAC script from {0}", url);
+		final AtomicReference<PacProxySelector> result = new AtomicReference<>();
+		Thread t = new Thread() {
+			@Override
+			public void run() {
+				PacScriptSource pacSource = new UrlPacScriptSource(url);
+				if (pacSource.isScriptValid()) {
+					result.set(new PacProxySelector(pacSource));
+				}
+			}
+		};
+		t.start();
+		try {
+			t.join(2500);
+		} catch (InterruptedException e) {
+			Thread.currentThread().interrupt();
 		}
-		return result;
+		return result.get();
 	}
-	
 
 }
-- 
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