Bug 562843 - Invalid behavior in HttpServletRequest methods with respect
to URI encoding

Change-Id: I54237e224a22ceafe6b3cd7b66e602c12899558c
Signed-off-by: Raymond Augé <raymond.auge@liferay.com>
diff --git a/bundles/org.eclipse.equinox.http.servlet.tests/src/org/eclipse/equinox/http/servlet/testbase/AllTests.java b/bundles/org.eclipse.equinox.http.servlet.tests/src/org/eclipse/equinox/http/servlet/testbase/AllTests.java
index 64a3c77..60bfe34 100644
--- a/bundles/org.eclipse.equinox.http.servlet.tests/src/org/eclipse/equinox/http/servlet/testbase/AllTests.java
+++ b/bundles/org.eclipse.equinox.http.servlet.tests/src/org/eclipse/equinox/http/servlet/testbase/AllTests.java
@@ -15,6 +15,7 @@
 
 import org.eclipse.equinox.http.servlet.tests.AuthenticationTest;
 import org.eclipse.equinox.http.servlet.tests.Bug500783_Test;
+import org.eclipse.equinox.http.servlet.tests.Bug562843_Test;
 import org.eclipse.equinox.http.servlet.tests.ContextHelperCustomizerTests;
 import org.eclipse.equinox.http.servlet.tests.DispatchingTest;
 import org.eclipse.equinox.http.servlet.tests.PreprocessorTestCase;
@@ -96,7 +97,8 @@
 	TestHttpServiceAndNamedServlet.class,
 	TestUpload.class,
 	ContextHelperCustomizerTests.class,
-	Bug500783_Test.class
+	Bug500783_Test.class,
+	Bug562843_Test.class
 })
 public class AllTests {
 	// see @SuiteClasses
diff --git a/bundles/org.eclipse.equinox.http.servlet.tests/src/org/eclipse/equinox/http/servlet/tests/Bug562843_Test.java b/bundles/org.eclipse.equinox.http.servlet.tests/src/org/eclipse/equinox/http/servlet/tests/Bug562843_Test.java
new file mode 100644
index 0000000..8cc2a8a
--- /dev/null
+++ b/bundles/org.eclipse.equinox.http.servlet.tests/src/org/eclipse/equinox/http/servlet/tests/Bug562843_Test.java
@@ -0,0 +1,50 @@
+package org.eclipse.equinox.http.servlet.tests;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.Dictionary;
+import java.util.Hashtable;
+import java.util.concurrent.atomic.AtomicReference;
+
+import javax.servlet.Servlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.eclipse.equinox.http.servlet.testbase.BaseTest;
+import org.junit.Assert;
+import org.junit.Test;
+import org.osgi.service.http.whiteboard.HttpWhiteboardConstants;
+
+public class Bug562843_Test extends BaseTest {
+
+	@Test
+	public void test_Bug562843() throws Exception {
+		final AtomicReference<String> requestURI = new AtomicReference<>();
+		final AtomicReference<String> servletPath = new AtomicReference<>();
+		final AtomicReference<String> pathInfo = new AtomicReference<>();
+		Servlet servlet = new HttpServlet() {
+			private static final long serialVersionUID = 1L;
+			@Override
+			protected void doGet(
+				final HttpServletRequest req, final HttpServletResponse resp)
+				throws IOException {
+				requestURI.set(req.getRequestURI());
+				servletPath.set(req.getServletPath());
+				pathInfo.set(req.getPathInfo());
+				PrintWriter writer = resp.getWriter();
+				writer.write("OK");
+			}
+		};
+		Dictionary<String, Object> props = new Hashtable<>();
+		props.put(HttpWhiteboardConstants.HTTP_WHITEBOARD_SERVLET_NAME, "Bug 562843");
+		props.put(HttpWhiteboardConstants.HTTP_WHITEBOARD_SERVLET_PATTERN, "/Bug 562843/*");
+		registrations.add(getBundleContext().registerService(Servlet.class, servlet, props));
+		String result = requestAdvisor.request("Bug%20562843/a%20b%20c");
+		Assert.assertEquals("OK", result);
+		Assert.assertEquals("/Bug%20562843/a%20b%20c", requestURI.get());
+		Assert.assertEquals("/Bug 562843", servletPath.get());
+		Assert.assertEquals("/a b c", pathInfo.get());
+	}
+
+}
diff --git a/bundles/org.eclipse.equinox.http.servlet/src/org/eclipse/equinox/http/servlet/internal/HttpServiceRuntimeImpl.java b/bundles/org.eclipse.equinox.http.servlet/src/org/eclipse/equinox/http/servlet/internal/HttpServiceRuntimeImpl.java
index 8d07030..872fa05 100644
--- a/bundles/org.eclipse.equinox.http.servlet/src/org/eclipse/equinox/http/servlet/internal/HttpServiceRuntimeImpl.java
+++ b/bundles/org.eclipse.equinox.http.servlet/src/org/eclipse/equinox/http/servlet/internal/HttpServiceRuntimeImpl.java
@@ -18,6 +18,9 @@
 import static org.osgi.service.http.whiteboard.HttpWhiteboardConstants.*;
 
 import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 import java.util.*;
 import java.util.Map.Entry;
 import java.util.concurrent.*;
@@ -511,7 +514,7 @@
 
 		int pos = requestURI.lastIndexOf('/');
 
-		String servletPath = requestURI;
+		String servletPath = decode(requestURI);
 		String pathInfo = null;
 
 		if (match == Match.CONTEXT_ROOT) {
@@ -537,8 +540,8 @@
 
 			if (pos > -1) {
 				String newServletPath = requestURI.substring(0, pos);
-				pathInfo = requestURI.substring(pos);
-				servletPath = newServletPath;
+				pathInfo = decode(requestURI.substring(pos));
+				servletPath = decode(newServletPath);
 				pos = servletPath.lastIndexOf('/');
 
 				continue;
@@ -1092,7 +1095,7 @@
 		sb.append("(objectClass=").append(HttpSessionListener.class.getName()).append(")"); //$NON-NLS-1$ //$NON-NLS-2$
 		sb.append("(objectClass=").append(HttpSessionAttributeListener.class.getName()).append(")"); //$NON-NLS-1$ //$NON-NLS-2$
 		if ((servletContext.getMajorVersion() >= 3) && (servletContext.getMinorVersion() > 0)) {
-			sb.append("(objectClass=").append(HttpSessionIdListener.class.getName()).append(")"); //$NON-NLS-1$ //$NON-NLS-2$		
+			sb.append("(objectClass=").append(HttpSessionIdListener.class.getName()).append(")"); //$NON-NLS-1$ //$NON-NLS-2$
 		}
 		sb.append(")"); //$NON-NLS-1$
 		sb.append(")"); //$NON-NLS-1$
@@ -1281,6 +1284,15 @@
 		return semaphore;
 	}
 
+	private String decode(String urlEncoded) {
+		try {
+			return URLDecoder.decode(urlEncoded, StandardCharsets.UTF_8.name());
+		}
+		catch (UnsupportedEncodingException e) {
+			return urlEncoded;
+		}
+	}
+
 	private final Map<String, Object> attributes;
 	private final String targetFilter;
 	final ServiceRegistration<ServletContextHelper> defaultContextReg;