From 78237483c658e35f35bf5044e2c4aa0b8993ba2a Mon Sep 17 00:00:00 2001
From: alain <108417558+alain-kermis-sonarsource@users.noreply.github.com>
Date: Tue, 29 Nov 2022 14:12:45 +0100
Subject: SONAR-17619 Fix SSF-157
---
.../org/sonar/server/platform/web/CspFilter.java | 71 +++++++++++++++++++
.../sonar/server/platform/web/CspFilterTest.java | 81 ++++++++++++++++++++++
2 files changed, 152 insertions(+)
create mode 100644 server/sonar-webserver/src/main/java/org/sonar/server/platform/web/CspFilter.java
create mode 100644 server/sonar-webserver/src/test/java/org/sonar/server/platform/web/CspFilterTest.java
(limited to 'server/sonar-webserver')
diff --git a/server/sonar-webserver/src/main/java/org/sonar/server/platform/web/CspFilter.java b/server/sonar-webserver/src/main/java/org/sonar/server/platform/web/CspFilter.java
new file mode 100644
index 00000000000..2cdd606e5c4
--- /dev/null
+++ b/server/sonar-webserver/src/main/java/org/sonar/server/platform/web/CspFilter.java
@@ -0,0 +1,71 @@
+/*
+ * SonarQube
+ * Copyright (C) 2009-2022 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+package org.sonar.server.platform.web;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletResponse;
+
+public class CspFilter implements Filter {
+
+ private final List<String> cspHeaders = new ArrayList<>();
+ private String policies = null;
+
+ @Override
+ public void init(FilterConfig filterConfig) throws ServletException {
+ cspHeaders.add("Content-Security-Policy");
+ cspHeaders.add("X-Content-Security-Policy");
+ cspHeaders.add("X-WebKit-CSP");
+
+ List<String> cspPolicies = new ArrayList<>();
+ cspPolicies.add("default-src 'self'");
+ cspPolicies.add("base-uri 'none'");
+ cspPolicies.add("connect-src 'self' http: https:");
+ cspPolicies.add("img-src * data: blob:");
+ cspPolicies.add("object-src 'none'");
+ cspPolicies.add("script-src 'self' 'unsafe-inline' 'unsafe-eval'");
+ cspPolicies.add("style-src 'self' 'unsafe-inline'");
+ cspPolicies.add("worker-src 'none'");
+ this.policies = String.join("; ", cspPolicies).trim();
+ }
+
+ @Override
+ public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+ // Add policies to all HTTP headers
+ for (String header : this.cspHeaders) {
+ ((HttpServletResponse) response).setHeader(header, this.policies);
+ }
+
+ chain.doFilter(request, response);
+ }
+
+ @Override
+ public void destroy() {
+ // Not used
+ }
+
+}
diff --git a/server/sonar-webserver/src/test/java/org/sonar/server/platform/web/CspFilterTest.java b/server/sonar-webserver/src/test/java/org/sonar/server/platform/web/CspFilterTest.java
new file mode 100644
index 00000000000..c73365dae8e
--- /dev/null
+++ b/server/sonar-webserver/src/test/java/org/sonar/server/platform/web/CspFilterTest.java
@@ -0,0 +1,81 @@
+/*
+ * SonarQube
+ * Copyright (C) 2009-2022 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+package org.sonar.server.platform.web;
+
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletContext;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.mockito.Mockito.RETURNS_MOCKS;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+public class CspFilterTest {
+
+ private static final String TEST_CONTEXT = "/sonarqube";
+ private static final String EXPECTED = "default-src 'self'; " +
+ "base-uri 'none'; " +
+ "connect-src 'self' http: https:; " +
+ "img-src * data: blob:; " +
+ "object-src 'none'; " +
+ "script-src 'self' 'unsafe-inline' 'unsafe-eval'; " +
+ "style-src 'self' 'unsafe-inline'; " +
+ "worker-src 'none'";
+ private final ServletContext servletContext = mock(ServletContext.class, RETURNS_MOCKS);
+ private final HttpServletResponse response = mock(HttpServletResponse.class);
+ private final FilterChain chain = mock(FilterChain.class);
+ private final CspFilter underTest = new CspFilter();
+ FilterConfig config = mock(FilterConfig.class);
+
+ @Before
+ public void setUp() throws ServletException {
+ when(servletContext.getContextPath()).thenReturn(TEST_CONTEXT);
+ }
+
+ @Test
+ public void set_content_security_headers() throws Exception {
+ doInit();
+ HttpServletRequest request = newRequest("/");
+ underTest.doFilter(request, response, chain);
+ verify(response).setHeader("Content-Security-Policy", EXPECTED);
+ verify(response).setHeader("X-Content-Security-Policy", EXPECTED);
+ verify(response).setHeader("X-WebKit-CSP", EXPECTED);
+ verify(chain).doFilter(request, response);
+ }
+
+ private void doInit() throws ServletException {
+ underTest.init(config);
+ }
+
+ private HttpServletRequest newRequest(String path) {
+ HttpServletRequest req = mock(HttpServletRequest.class);
+ when(req.getMethod()).thenReturn("GET");
+ when(req.getRequestURI()).thenReturn(path);
+ when(req.getContextPath()).thenReturn("");
+ when(req.getServletContext()).thenReturn(this.servletContext);
+ return req;
+ }
+}
--
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