70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */
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/* vim: set sw=4 ts=8 et tw=80 ft=cpp : */
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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 protocol PBrowser;
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include PBrowserOrId;
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namespace mozilla {
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namespace dom {
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// An IPCTabContext which corresponds to a PBrowser opened by a child when it
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// receives window.open().
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//
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// If isBrowserElement is false, this PopupIPCTabContext corresponds to an app
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// frame, and the frame's app-id and app-frame-owner-app-id will be equal to the
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// opener's values.
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//
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// If isBrowserElement is true, the frame's browserFrameOwnerAppId will be equal
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// to the opener's app-id.
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//
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// It's an error to set isBrowserElement == false if opener is a browser
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// element. Such a PopupIPCTabContext should be rejected by code which receives
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// it.
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struct PopupIPCTabContext
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{
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PBrowserOrId opener;
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bool isBrowserElement;
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};
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// An IPCTabContext which corresponds to an app, browser, or normal frame.
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struct FrameIPCTabContext
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{
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// The stringified originAttributes dictionary.
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nsCString originSuffix;
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// The ID of the app containing this app/browser frame, if applicable.
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uint32_t frameOwnerAppId;
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// The origin without originAttribute suffix for a signed package.
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// This value would be empty if the TabContext doesn't own a signed
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// package.
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nsCString signedPkgOriginNoSuffix;
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};
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// XXXcatalinb: This is only used by ServiceWorkerClients::OpenWindow.
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// Because service workers don't have an associated TabChild
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// we can't satisfy the security constraints on b2g. As such, the parent
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// process will accept this tab context only on desktop.
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struct UnsafeIPCTabContext
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{ };
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// IPCTabContext is an analog to mozilla::dom::TabContext. Both specify an
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// iframe/PBrowser's own and containing app-ids and tell you whether the
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// iframe/PBrowser is a browser frame. But only IPCTabContext is allowed to
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// travel over IPC.
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//
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// We need IPCTabContext (specifically, PopupIPCTabContext) to prevent a
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// privilege escalation attack by a compromised child process.
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union IPCTabContext
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{
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PopupIPCTabContext;
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FrameIPCTabContext;
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UnsafeIPCTabContext;
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};
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}
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}
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