Merge branch 'main' into henrymercer/rc-3.15-mergeback

javascript/ql/lib/semmle/javascript/NodeJS.qll

@@ -295,6 +295,15 @@ private predicate isRequire(DataFlow::Node nd) {
     isCreateRequire(call.getCallee().flow()) and
     nd = call.flow()
   )
+  or
+  // `$.require('underscore');`.
+  // NPM as supported in [XSJS files](https://www.npmjs.com/package/@sap/async-xsjs#npm-packages-support).
+  exists(MethodCallExpr require |
+    nd.getFile().getExtension() = ["xsjs", "xsjslib"] and
+    require.getCalleeName() = "require" and
+    require.getReceiver().(GlobalVarAccess).getName() = "$" and
+    nd = require.getCallee().flow()
+  )
 }
 
 /**

javascript/ql/lib/semmle/javascript/frameworks/helmet/Helmet.Required.Setting.model.yml

@@ -1,6 +1,6 @@
 extensions:
   - addsTo:
-      pack: codeql/javascript-queries
+      pack: codeql/javascript-all
       extensible: requiredHelmetSecuritySetting
     data:
       - ["frameguard"]

javascript/ql/lib/semmle/javascript/frameworks/helmet/Helmet.qll

@@ -0,0 +1,41 @@
+/**
+ * Provides classes for working with Helmet
+ */
+
+private import javascript
+
+/**
+ * A write to a property of a route handler from the "helmet" module.
+ */
+class HelmetProperty extends DataFlow::Node instanceof DataFlow::PropWrite {
+  ExpressLibraries::HelmetRouteHandler helmet;
+
+  HelmetProperty() {
+    this = helmet.(DataFlow::CallNode).getAnArgument().getALocalSource().getAPropertyWrite()
+  }
+
+  /**
+   * Gets the route handler associated to this property.
+   */
+  ExpressLibraries::HelmetRouteHandler getHelmet() { result = helmet }
+
+  /**
+   * Gets the boolean value of this property, if it may evaluate to a `Boolean`.
+   */
+  predicate isFalse() { DataFlow::PropWrite.super.getRhs().mayHaveBooleanValue(false) }
+
+  /**
+   * Gets the name of the `HelmetProperty`.
+   */
+  string getName() { result = DataFlow::PropWrite.super.getPropertyName() }
+
+  /**
+   * read from data extensions to allow enforcing custom settings
+   */
+  predicate isImportantSecuritySetting() { requiredHelmetSecuritySetting(this.getName()) }
+}
+
+/**
+ * defaults are located in `javascript/ql/lib/semmle/frameworks/helmet/Helmet.Required.Setting.model.yml`
+ */
+extensible predicate requiredHelmetSecuritySetting(string name);