API inicial

node_modules/helmet/dist/middlewares/referrer-policy/index.d.ts

@@ -0,0 +1,6 @@
+import { IncomingMessage, ServerResponse } from "http"
+export interface ReferrerPolicyOptions {
+	policy?: string | string[]
+}
+declare function referrerPolicy(options?: Readonly<ReferrerPolicyOptions>): (_req: IncomingMessage, res: ServerResponse, next: () => void) => void
+export default referrerPolicy

node_modules/helmet/dist/middlewares/referrer-policy/index.js

@@ -0,0 +1,28 @@
+"use strict"
+Object.defineProperty(exports, "__esModule", { value: true })
+const ALLOWED_TOKENS = new Set(["no-referrer", "no-referrer-when-downgrade", "same-origin", "origin", "strict-origin", "origin-when-cross-origin", "strict-origin-when-cross-origin", "unsafe-url", ""])
+function getHeaderValueFromOptions({ policy = ["no-referrer"] }) {
+	const tokens = typeof policy === "string" ? [policy] : policy
+	if (tokens.length === 0) {
+		throw new Error("Referrer-Policy received no policy tokens")
+	}
+	const tokensSeen = new Set()
+	tokens.forEach(token => {
+		if (!ALLOWED_TOKENS.has(token)) {
+			throw new Error(`Referrer-Policy received an unexpected policy token ${JSON.stringify(token)}`)
+		} else if (tokensSeen.has(token)) {
+			throw new Error(`Referrer-Policy received a duplicate policy token ${JSON.stringify(token)}`)
+		}
+		tokensSeen.add(token)
+	})
+	return tokens.join(",")
+}
+function referrerPolicy(options = {}) {
+	const headerValue = getHeaderValueFromOptions(options)
+	return function referrerPolicyMiddleware(_req, res, next) {
+		res.setHeader("Referrer-Policy", headerValue)
+		next()
+	}
+}
+module.exports = referrerPolicy
+exports.default = referrerPolicy