Add test for SECURITY-3135 (#8427)

* Add test for SECURITY-3135

* Address review feedback

Author: Kevin-CB

test/src/test/java/jenkins/security/Security3135Test.java

@@ -0,0 +1,79 @@
+package jenkins.security;
+
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import hudson.model.FreeStyleProject;
+import hudson.model.InvisibleAction;
+import hudson.model.UnprotectedRootAction;
+import org.htmlunit.FailingHttpStatusCodeException;
+import org.htmlunit.html.DomElement;
+import org.htmlunit.html.HtmlPage;
+import org.junit.Rule;
+import org.junit.Test;
+import org.jvnet.hudson.test.Issue;
+import org.jvnet.hudson.test.JenkinsRule;
+import org.jvnet.hudson.test.TestExtension;
+import org.kohsuke.stapler.StaplerRequest;
+import org.kohsuke.stapler.StaplerResponse;
+
+public class Security3135Test {
+    public static final String ACTION_URL = "security3135";
+    @Rule
+    public JenkinsRule j = new JenkinsRule();
+
+    @Test
+    @Issue("SECURITY-3135")
+    public void contextMenuShouldNotBypassCSRFProtection() throws Exception {
+        JenkinsRule.WebClient wc = j.createWebClient();
+        FreeStyleProject project = j.createFreeStyleProject("FreestyleProject");
+        ViewHolder viewHolder = j.jenkins.getExtensionList(ViewHolder.class).get(ViewHolder.class);
+        boolean exceptionThrown = false;
+
+        HtmlPage page = wc.goTo(ACTION_URL);
+        DomElement standardMenu = page.getElementById("standard-menu");
+        standardMenu.click();
+        DomElement contextMenu = page.getElementById("context-menu");
+        try {
+            contextMenu.click();
+        } catch (FailingHttpStatusCodeException e) {
+            if (e.getStatusCode() == 405) {
+                exceptionThrown = true;
+            }
+        }
+
+        j.waitUntilNoActivityUpTo(2000); // Give the job 2 seconds to be submitted
+
+        assertTrue("Request was not made", viewHolder.isRequestMade());
+        assertTrue("Expected 405 Method Not Allowed", exceptionThrown);
+        assertNull("Build should not be scheduled", j.jenkins.getQueue().getItem(project));
+        assertNull("Build should not be scheduled", project.getBuildByNumber(1));
+    }
+
+    @TestExtension
+    public static class ViewHolder extends InvisibleAction implements UnprotectedRootAction {
+
+        public boolean requestMade = false;
+
+        @Override
+        public String getUrlName() {
+            return ACTION_URL;
+        }
+
+        public String getPayload() {
+            return "../job/FreestyleProject/build?delay=0sec&";
+        }
+
+        public String getStandardPayload() {
+            return "../security3135/validate?";
+        }
+
+        public boolean isRequestMade() {
+            return requestMade;
+        }
+
+        public void doValidate(StaplerRequest request, StaplerResponse response) {
+            requestMade = true;
+        }
+    }
+}

test/src/test/resources/jenkins/security/Security3135Test/ViewHolder/index.jelly

@@ -0,0 +1,9 @@
+<?jelly escape-by-default='true'?>
+<j:jelly xmlns:j="jelly:core" xmlns:l="/lib/layout" xmlns:f="/lib/form">
+    <l:layout title="Security-3135">
+        <l:main-panel>
+            <a href="${rootUrl}${it.payload}" class="model-link" id="context-menu">Context Menu</a>
+            <a href="${rootUrl}${it.standardPayload}" class="model-link" id="standard-menu">Standard Menu</a>
+        </l:main-panel>
+    </l:layout>
+</j:jelly>