Run ATH with CSP (report only)

Jenkinsfile

@@ -39,7 +39,7 @@ if (needSplittingFromWorkspace) {
 }
 
 def axes = [
-  jenkinsVersions: ['lts', 'latest'],
+  jenkinsVersions: ['latest'],
   platforms: ['linux'],
   jdks: [17, 21],
   browsers: ['firefox'],

src/main/java/org/jenkinsci/test/acceptance/junit/CspRule.java

@@ -0,0 +1,45 @@
+package org.jenkinsci.test.acceptance.junit;
+
+import com.google.inject.Inject;
+import com.google.inject.Injector;
+import java.util.List;
+import java.util.logging.Logger;
+import org.jenkinsci.test.acceptance.plugins.csp.ContentSecurityPolicyReport;
+import org.jenkinsci.test.acceptance.po.Jenkins;
+import org.jenkinsci.test.acceptance.update_center.PluginSpec;
+import org.junit.rules.TestRule;
+import org.junit.runner.Description;
+import org.junit.runners.model.Statement;
+
+@GlobalRule
+public final class CspRule implements TestRule {
+
+    private static final Logger LOGGER = Logger.getLogger(CspRule.class.getName());
+
+    @Inject
+    Injector injector;
+
+    @Override
+    public Statement apply(final Statement base, final Description d) {
+        return new Statement() {
+            private Jenkins jenkins;
+
+            @Override
+            public void evaluate() throws Throwable {
+                jenkins = injector.getInstance(Jenkins.class);
+                final PluginSpec plugin = new PluginSpec("csp");
+                LOGGER.info("Installing plugin for test: " + plugin);
+                jenkins.getPluginManager().installPlugins(plugin);
+                try {
+                    base.evaluate();
+                } finally {
+                    ContentSecurityPolicyReport csp = new ContentSecurityPolicyReport(jenkins);
+                    List<String> lines = csp.getReport();
+                    if (lines.size() > 2) {
+                        throw new AssertionError(String.join("\n", csp.getReport()));
+                    }
+                }
+            }
+        };
+    }
+}

src/main/java/org/jenkinsci/test/acceptance/plugins/csp/ContentSecurityPolicyReport.java

@@ -0,0 +1,50 @@
+package org.jenkinsci.test.acceptance.plugins.csp;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.jenkinsci.test.acceptance.po.Jenkins;
+import org.jenkinsci.test.acceptance.po.PageObject;
+import org.openqa.selenium.By;
+import org.openqa.selenium.NoSuchElementException;
+import org.openqa.selenium.WebElement;
+
+public class ContentSecurityPolicyReport extends PageObject {
+    public ContentSecurityPolicyReport(Jenkins context) {
+        super(context, context.url("content-security-policy-reports/"));
+    }
+
+    public List<String> getReport() {
+        List<String> lines = new ArrayList<>();
+        WebElement table;
+        try {
+            open();
+            table = find(By.className("bigtable"));
+        } catch (NoSuchElementException e) {
+            try {
+                getContext().getJenkins().logout();
+            } catch (Exception ignored) {
+                // Ignore
+            }
+            getContext().getJenkins().login().doLogin("admin");
+            open();
+            table = find(By.className("bigtable"));
+        }
+        List<WebElement> headers = table.findElements(By.tagName("th"));
+        StringBuilder sb = new StringBuilder();
+        for (WebElement header : headers) {
+            sb.append(header.getText()).append("\t");
+        }
+        lines.add(sb.toString());
+        sb = new StringBuilder();
+        List<WebElement> rows = table.findElements(By.tagName("tr"));
+        for (WebElement row : rows) {
+            List<WebElement> cells = row.findElements(By.tagName("td"));
+            for (WebElement cell : cells) {
+                sb.append(cell.getText()).append("\t");
+            }
+            lines.add(sb.toString());
+            sb = new StringBuilder();
+        }
+        return lines;
+    }
+}