forked from mirrors/gecko-dev
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsWebBrowserContentPolicy.h"
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#include "nsIDocShell.h"
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#include "nsCOMPtr.h"
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#include "nsContentPolicyUtils.h"
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#include "nsNetUtil.h"
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nsWebBrowserContentPolicy::nsWebBrowserContentPolicy() = default;
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nsWebBrowserContentPolicy::~nsWebBrowserContentPolicy() = default;
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NS_IMPL_ISUPPORTS(nsWebBrowserContentPolicy, nsIContentPolicy)
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NS_IMETHODIMP
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nsWebBrowserContentPolicy::ShouldLoad(nsIURI* aContentLocation,
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nsILoadInfo* aLoadInfo,
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const nsACString& aMimeGuess,
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int16_t* aShouldLoad) {
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MOZ_ASSERT(aShouldLoad, "Null out param");
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ExtContentPolicyType contentType = aLoadInfo->GetExternalContentPolicyType();
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*aShouldLoad = nsIContentPolicy::ACCEPT;
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nsCOMPtr<nsISupports> context = aLoadInfo->GetLoadingContext();
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nsIDocShell* shell = NS_CP_GetDocShellFromContext(context);
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/* We're going to dereference shell, so make sure it isn't null */
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if (!shell) {
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return NS_OK;
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}
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nsresult rv;
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bool allowed = true;
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switch (contentType) {
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case ExtContentPolicy::TYPE_SUBDOCUMENT:
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rv = shell->GetAllowSubframes(&allowed);
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break;
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case ExtContentPolicy::TYPE_IMAGE:
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case ExtContentPolicy::TYPE_IMAGESET:
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rv = shell->GetAllowImages(&allowed);
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break;
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default:
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return NS_OK;
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}
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if (NS_SUCCEEDED(rv) && !allowed) {
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NS_SetRequestBlockingReason(
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aLoadInfo, nsILoadInfo::BLOCKING_REASON_CONTENT_POLICY_WEB_BROWSER);
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*aShouldLoad = nsIContentPolicy::REJECT_TYPE;
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}
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return rv;
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}
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NS_IMETHODIMP
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nsWebBrowserContentPolicy::ShouldProcess(nsIURI* aContentLocation,
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nsILoadInfo* aLoadInfo,
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const nsACString& aMimeGuess,
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int16_t* aShouldProcess) {
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MOZ_ASSERT(aShouldProcess, "Null out param");
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ExtContentPolicyType contentType = aLoadInfo->GetExternalContentPolicyType();
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*aShouldProcess = nsIContentPolicy::ACCEPT;
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// Object tags will always open channels with TYPE_OBJECT, but may end up
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// loading with TYPE_IMAGE or TYPE_DOCUMENT as their final type, so we block
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// actual-plugins at the process stage
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if (contentType != ExtContentPolicy::TYPE_OBJECT) {
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return NS_OK;
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}
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nsCOMPtr<nsISupports> context = aLoadInfo->GetLoadingContext();
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nsIDocShell* shell = NS_CP_GetDocShellFromContext(context);
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if (shell && (!shell->PluginsAllowedInCurrentDoc())) {
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NS_SetRequestBlockingReason(
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aLoadInfo, nsILoadInfo::BLOCKING_REASON_CONTENT_POLICY_WEB_BROWSER);
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*aShouldProcess = nsIContentPolicy::REJECT_TYPE;
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}
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return NS_OK;
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}
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