Added URLDecoder class (Unicode not supported)

src/zutil/net/http/HttpHeaderParser.java

@@ -24,6 +24,8 @@
 
 package zutil.net.http;
 
+import zutil.parser.URLDecoder;
+
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.util.HashMap;
@@ -49,7 +51,7 @@ public class HttpHeaderParser {
 	private HashMap<String, String> cookies;
 
 	/**
-	 * Parses the HTTP header information from the stream
+	 * Parses the HTTP header information from a stream
 	 * 
 	 * @param 	in 				is the stream
 	 * @throws 	IOException 
@@ -147,6 +149,7 @@ public class HttpHeaderParser {
 	 */
 	public static void parseURLParameters(String attributes, HashMap<String, String> map){
 		String[] tmp;
+		attributes = URLDecoder.decode(attributes);
 		// get the variables
 		String[] data = andPattern.split( attributes );
 		for(String element : data){

src/zutil/parser/URLDecoder.java

@@ -0,0 +1,36 @@
+package zutil.parser;
+
+/**
+ * This utility class will decode Strings encoded with % sign's to a normal String
+ *
+ * Created by Ziver on 2015-12-11.
+ */
+public class URLDecoder {
+    
+    public static String decode(String url){
+        if(url == null)
+            return null;
+        StringBuilder out = new StringBuilder();
+        for (int i=0; i<url.length(); ++i) {
+            char c = url.charAt(i);
+            switch (c){
+                case '+':
+                    out.append(' ');
+                    break;
+                case '%':
+                    if (i+2 < url.length()) {
+                        char ascii = (char)Integer.parseInt("" + url.charAt(i + 1) + url.charAt(i + 2), 16);
+                        out.append(ascii);
+                        i += 2;
+                    }
+                    else
+                        out.append(c);
+                    break;
+                default:
+                    out.append(c);
+                    break;
+            }
+        }
+        return out.toString();
+    }
+}

test/zutil/test/URLDecoderTest.java

@@ -0,0 +1,35 @@
+package zutil.test;
+
+import org.junit.Test;
+import zutil.parser.URLDecoder;
+
+import static org.junit.Assert.assertEquals;
+
+
+/**
+ * Created by ezivkoc on 2015-12-11.
+ */
+public class URLDecoderTest {
+
+    @Test
+    public void simpleTest(){
+        assertEquals(null, URLDecoder.decode(null));
+        assertEquals("", URLDecoder.decode(""));
+        assertEquals("space space", URLDecoder.decode("space space"));
+        assertEquals("space space", URLDecoder.decode("space+space"));
+        assertEquals("space space", URLDecoder.decode("space%20space"));
+    }
+
+    @Test
+    public void percentTest(){
+        assertEquals("test+", URLDecoder.decode("test%2B"));
+        assertEquals("test%2", URLDecoder.decode("test%2"));
+        assertEquals("test+test", URLDecoder.decode("test%2Btest"));
+        assertEquals("test+test", URLDecoder.decode("test%2btest"));
+    }
+
+    @Test
+    public void percentMultibyteTest(){
+        assertEquals("Ängen", URLDecoder.decode("%C3%84ngen"));
+    }
+}