зеркало из https://github.com/mozilla/gecko-dev.git
137 строки
3.4 KiB
C++
137 строки
3.4 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 "AddonManagerWebAPI.h"
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#include "mozilla/dom/Navigator.h"
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#include "mozilla/dom/NavigatorBinding.h"
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#include "mozilla/Preferences.h"
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#include "nsGlobalWindow.h"
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#include "nsIDocShell.h"
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#include "nsIScriptObjectPrincipal.h"
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namespace mozilla {
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using namespace mozilla::dom;
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// Checks if the given uri is secure and matches one of the hosts allowed to
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// access the API.
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bool
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AddonManagerWebAPI::IsValidSite(nsIURI* uri)
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{
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if (!uri) {
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return false;
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}
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bool isSecure;
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nsresult rv = uri->SchemeIs("https", &isSecure);
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if (NS_FAILED(rv) || !isSecure) {
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return false;
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}
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nsCString host;
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rv = uri->GetHost(host);
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if (NS_FAILED(rv)) {
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return false;
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}
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if (host.Equals("addons.mozilla.org") ||
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host.Equals("discovery.addons.mozilla.org")) {
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return true;
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}
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// When testing allow access to the developer sites.
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if (Preferences::GetBool("extensions.webapi.testing", false)) {
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if (host.Equals("addons.allizom.org") ||
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host.Equals("discovery.addons.allizom.org") ||
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host.Equals("addons-dev.allizom.org") ||
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host.Equals("discovery.addons-dev.allizom.org") ||
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host.Equals("example.com")) {
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return true;
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}
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}
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return false;
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}
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bool
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AddonManagerWebAPI::IsAPIEnabled(JSContext* cx, JSObject* obj)
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{
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nsGlobalWindow* global = xpc::WindowGlobalOrNull(obj);
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if (!global) {
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return false;
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}
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nsCOMPtr<nsPIDOMWindowInner> win = global->AsInner();
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if (!win) {
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return false;
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}
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// Check that the current window and all parent frames are allowed access to
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// the API.
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while (win) {
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nsCOMPtr<nsIScriptObjectPrincipal> sop = do_QueryInterface(win);
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if (!sop) {
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return false;
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}
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nsCOMPtr<nsIPrincipal> principal = sop->GetPrincipal();
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if (!principal) {
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return false;
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}
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// Reaching a window with a system principal means we have reached
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// privileged UI of some kind so stop at this point and allow access.
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if (principal->GetIsSystemPrincipal()) {
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return true;
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}
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nsCOMPtr<nsIDocShell> docShell = win->GetDocShell();
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if (!docShell) {
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// This window has been torn down so don't allow access to the API.
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return false;
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}
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if (!IsValidSite(win->GetDocumentURI())) {
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return false;
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}
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// Checks whether there is a parent frame of the same type. This won't cross
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// mozbrowser or chrome boundaries.
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nsCOMPtr<nsIDocShellTreeItem> parent;
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nsresult rv = docShell->GetSameTypeParent(getter_AddRefs(parent));
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if (NS_FAILED(rv)) {
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return false;
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}
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if (!parent) {
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// No parent means we've hit a mozbrowser or chrome boundary so allow
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// access to the API.
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return true;
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}
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nsIDocument* doc = win->GetDoc();
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if (!doc) {
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return false;
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}
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doc = doc->GetParentDocument();
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if (!doc) {
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// Getting here means something has been torn down so fail safe.
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return false;
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}
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win = doc->GetInnerWindow();
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}
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// Found a document with no inner window, don't grant access to the API.
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return false;
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}
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} // namespace mozilla
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