csp_fuzzer.cpp - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */

#include "FuzzingInterface.h"

#include "mozilla/BasePrincipal.h"

#include "nsComponentManagerUtils.h"

#include "nsCSPContext.h"

#include "nsNetUtil.h"

#include "nsStringFwd.h"

static int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

  nsresult ret;

  nsCOMPtr<nsIURI> selfURI;

  ret = NS_NewURI(getter_AddRefs(selfURI), "http://selfuri.com");

  if (ret != NS_OK) return 0;

  mozilla::OriginAttributes attrs;

  nsCOMPtr<nsIPrincipal> selfURIPrincipal =

      mozilla::BasePrincipal::CreateContentPrincipal(selfURI, attrs);

  if (!selfURIPrincipal) return 0;

  nsCOMPtr<nsIContentSecurityPolicy> csp =

      do_CreateInstance(NS_CSPCONTEXT_CONTRACTID, &ret);

  if (ret != NS_OK) return 0;

  ret =

      csp->SetRequestContextWithPrincipal(selfURIPrincipal, selfURI, ""_ns, 0);

  if (ret != NS_OK) return 0;

  NS_ConvertASCIItoUTF16 policy(reinterpret_cast<const char*>(data), size);

  if (!policy.get()) return 0;

  csp->AppendPolicy(policy, false, false);

  return 0;

MOZ_FUZZING_INTERFACE_RAW(nullptr, LLVMFuzzerTestOneInput,

                          ContentSecurityPolicyParser);