79 lines
2.6 KiB
Plaintext
79 lines
2.6 KiB
Plaintext
/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */
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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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using UIStateChangeType from "nsPIDOMWindow.h";
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using mozilla::DocShellOriginAttributes from "mozilla/ipc/BackgroundUtils.h";
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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 isMozBrowserElement is false, this PopupIPCTabContext is either a
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// <xul:browser> or an app frame. The frame's app-id and app-frame-owner-app-id
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// will be equal to the opener's values. For a <xul:browser>, those app IDs
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// will be NO_APP_ID.
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//
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// If isMozBrowserElement is true, the frame's browserFrameOwnerAppId will be
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// equal to the opener's app-id.
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//
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// It's an error to set isMozBrowserElement == false if opener is a mozbrowser
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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 isMozBrowserElement;
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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 originAttributes dictionary.
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DocShellOriginAttributes originAttributes;
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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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// Whether this is a mozbrowser frame. <iframe mozbrowser mozapp> and
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// <xul:browser> are not considered to be mozbrowser frames.
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bool isMozBrowserElement;
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// Whether this TabContext should work in prerender mode.
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bool isPrerendered;
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// Keyboard indicator state inherited from the parent.
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UIStateChangeType showAccelerators;
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UIStateChangeType showFocusRings;
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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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