Basic auth not working

https://jira.onap.org/browse/DCAEGEN2-1541

Issue-ID: DCAEGEN2-1541

Change-Id: I61211b7a4693fea60b6da4bc460c2be47a41efa7
Signed-off-by: Zlatko Murgoski <zlatko.murgoski@nokia.com>

3 files changed, 49 insertions, 90 deletions

diff --git a/src/main/java/org/onap/dcae/restapi/ApiAuthInterceptor.java b/src/main/java/org/onap/dcae/restapi/ApiAuthInterceptor.java
index 7d3d2929..3da37c61 100644
--- a/src/main/java/org/onap/dcae/restapi/ApiAuthInterceptor.java
+++ b/src/main/java/org/onap/dcae/restapi/ApiAuthInterceptor.java
@@ -23,7 +23,11 @@ import io.vavr.control.Option;
 import java.io.IOException;
 import java.security.cert.X509Certificate;
 import java.util.Base64;
-import java.util.stream.Collectors;
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import org.onap.dcae.ApplicationSettings;
@@ -32,9 +36,10 @@ import org.onap.dcae.common.configuration.SubjectMatcher;
 import org.onap.dcaegen2.services.sdk.security.CryptPassword;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
+import org.springframework.stereotype.Component;
 
-final class ApiAuthInterceptor extends HandlerInterceptorAdapter {
+@Component
+public class ApiAuthInterceptor implements Filter {
 
     private static final Logger LOG = LoggerFactory.getLogger(ApiAuthInterceptor.class);
     private static final String CERTIFICATE_X_509 = "javax.servlet.request.X509Certificate";
@@ -48,24 +53,32 @@ final class ApiAuthInterceptor extends HandlerInterceptorAdapter {
         this.errorLogger = errorLogger;
     }
 
-    @Override
-    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
-        throws IOException {
 
+    @Override
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
         SubjectMatcher subjectMatcher = new SubjectMatcher(settings,(X509Certificate[]) request.getAttribute(CERTIFICATE_X_509));
 
         if(settings.authMethod().equalsIgnoreCase(AuthMethodType.CERT_ONLY.value())){
-            return validateCertRequest(response, subjectMatcher);
+            if( validateCertRequest((HttpServletResponse )response, subjectMatcher)){
+                chain.doFilter(request, response);
+                return;
+            }
+            return;
         }
 
         if(isCertSubject(subjectMatcher)){
-            return true;
+            chain.doFilter(request, response);
+            return;
         }
 
         if (isBasicAuth() ) {
-            return validateBasicHeader(request, response);
+            if(validateBasicHeader((HttpServletRequest)request, (HttpServletResponse)response)){
+                chain.doFilter(request, response);
+                return;
+            }
+            return;
         }
-        return true;
+        chain.doFilter(request, response);
     }
 
     private boolean validateBasicHeader(HttpServletRequest request, HttpServletResponse response)
diff --git a/src/main/java/org/onap/dcae/restapi/ApiConfiguration.java b/src/main/java/org/onap/dcae/restapi/ApiConfiguration.java
deleted file mode 100644
index c44e0d45..00000000
--- a/src/main/java/org/onap/dcae/restapi/ApiConfiguration.java
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- * PROJECT
- * ================================================================================
- * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
- * Copyright (C) 2018 Nokia. All rights reserved.s
- * ================================================================================
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * ============LICENSE_END=========================================================
- */
-
-package org.onap.dcae.restapi;
-
-import org.onap.dcae.ApplicationSettings;
-import org.slf4j.Logger;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.web.servlet.config.annotation.EnableWebMvc;
-import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
-
-@EnableWebMvc
-@Configuration
-public class ApiConfiguration implements WebMvcConfigurer {
-
-    private final ApplicationSettings applicationSettings;
-    private Logger errorLogger;
-
-    @Autowired
-    ApiConfiguration(ApplicationSettings applicationSettings, Logger errorLogger) {
-        this.applicationSettings = applicationSettings;
-        this.errorLogger = errorLogger;
-    }
-
-    @Override
-    public void addInterceptors(InterceptorRegistry registry) {
-        registry.addInterceptor(new ApiAuthInterceptor(applicationSettings, errorLogger));
-    }
-}
diff --git a/src/test/java/org/onap/dcae/restapi/ApiAuthInterceptionTest.java b/src/test/java/org/onap/dcae/restapi/ApiAuthInterceptionTest.java
index c0a06a07..4398faad 100644
--- a/src/test/java/org/onap/dcae/restapi/ApiAuthInterceptionTest.java
+++ b/src/test/java/org/onap/dcae/restapi/ApiAuthInterceptionTest.java
@@ -20,8 +20,18 @@
 
 package org.onap.dcae.restapi;
 
+import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import io.vavr.collection.HashMap;
 import io.vavr.collection.Map;
+import java.io.IOException;
+import java.io.PrintWriter;
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.InjectMocks;
@@ -35,16 +45,6 @@ import org.springframework.http.HttpStatus;
 import org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors;
 import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
 
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import java.io.IOException;
-import java.io.PrintWriter;
-
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(MockitoJUnitRunner.Silent.class)
 public class ApiAuthInterceptionTest {
     private static final String USERNAME = "Foo";
@@ -61,7 +61,7 @@ public class ApiAuthInterceptionTest {
     private HttpServletResponse response;
 
     @Mock
-    private Object obj;
+    private FilterChain obj;
 
     @Mock
     private PrintWriter writer;
@@ -86,21 +86,21 @@ public class ApiAuthInterceptionTest {
     }
 
     @Test
-    public void shouldSucceedWhenAuthorizationIsDisabled() throws IOException {
+    public void shouldSucceedWhenAuthorizationIsDisabled() throws IOException, ServletException {
         // given
         final HttpServletRequest request = createEmptyRequest();
 
         when(settings.authMethod()).thenReturn(AuthMethodType.NO_AUTH.value());
 
         // when
-        final boolean isAuthorized = sut.preHandle(request, response, obj);
+        sut.doFilter(request, response, obj);
 
         // then
-        assertTrue(isAuthorized);
+        verify(obj, atLeastOnce()).doFilter(request, response);
     }
 
     @Test
-    public void shouldFailDueToEmptyBasicAuthorizationHeader() throws IOException {
+    public void shouldFailDueToEmptyBasicAuthorizationHeader() throws IOException, ServletException {
         // given
         final HttpServletRequest request = createEmptyRequest();
 
@@ -108,18 +108,16 @@ public class ApiAuthInterceptionTest {
         when(response.getWriter()).thenReturn(writer);
 
         // when
-        final boolean isAuthorized = sut.preHandle(request, response, obj);
-
+        sut.doFilter(request, response, obj);
 
         // then
-        assertFalse(isAuthorized);
-
         verify(response).setStatus(HttpStatus.UNAUTHORIZED.value());
         verify(writer).write(ApiException.UNAUTHORIZED_USER.toJSON().toString());
     }
 
     @Test
-    public void shouldFailDueToBasicAuthenticationUserMissingFromSettings() throws IOException {
+    public void shouldFailDueToBasicAuthenticationUserMissingFromSettings()
+        throws IOException, ServletException {
         // given
         final HttpServletRequest request = createRequestWithAuthorizationHeader();
 
@@ -127,17 +125,15 @@ public class ApiAuthInterceptionTest {
         when(response.getWriter()).thenReturn(writer);
 
         // when
-        final boolean isAuthorized = sut.preHandle(request, response, obj);
+        sut.doFilter(request, response, obj);
 
         // then
-        assertFalse(isAuthorized);
-
         verify(response).setStatus(HttpStatus.UNAUTHORIZED.value());
         verify(writer).write(ApiException.UNAUTHORIZED_USER.toJSON().toString());
     }
 
     @Test
-    public void shouldSucceed() throws IOException {
+    public void shouldSucceed() throws IOException, ServletException {
         // given
         final HttpServletRequest request = createRequestWithAuthorizationHeader();
         when(settings.authMethod()).thenReturn(AuthMethodType.BASIC_AUTH.value());
@@ -146,14 +142,15 @@ public class ApiAuthInterceptionTest {
         when(response.getWriter()).thenReturn(writer);
 
         // when
-        final boolean isAuthorized = sut.preHandle(request, response, obj);
+        sut.doFilter(request, response, obj);
 
         // then
-        assertTrue(isAuthorized);
+        verify(obj, atLeastOnce()).doFilter(request, response);
     }
 
     @Test
-    public void shouldFailDueToInvalidBasicAuthorizationHeaderValue() throws IOException {
+    public void shouldFailDueToInvalidBasicAuthorizationHeaderValue()
+        throws IOException, ServletException {
         // given
         final HttpServletRequest request =
                 MockMvcRequestBuilders
@@ -166,11 +163,9 @@ public class ApiAuthInterceptionTest {
         when(response.getWriter()).thenReturn(writer);
 
         // when
-        final boolean isAuthorized = sut.preHandle(request, response, obj);
-
-        // then
-        assertFalse(isAuthorized);
+        sut.doFilter(request, response, obj);
 
+        //then
         verify(response).setStatus(HttpStatus.UNAUTHORIZED.value());
         verify(writer).write(ApiException.UNAUTHORIZED_USER.toJSON().toString());
     }