From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- .../transports/BrowsingContextUtils.sys.mjs | 57 ++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 remote/shared/messagehandler/transports/BrowsingContextUtils.sys.mjs (limited to 'remote/shared/messagehandler/transports/BrowsingContextUtils.sys.mjs') diff --git a/remote/shared/messagehandler/transports/BrowsingContextUtils.sys.mjs b/remote/shared/messagehandler/transports/BrowsingContextUtils.sys.mjs new file mode 100644 index 0000000000..482f90948a --- /dev/null +++ b/remote/shared/messagehandler/transports/BrowsingContextUtils.sys.mjs @@ -0,0 +1,57 @@ +/* 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 http://mozilla.org/MPL/2.0/. */ + +function isExtensionContext(browsingContext) { + let principal; + if (CanonicalBrowsingContext.isInstance(browsingContext)) { + principal = browsingContext.currentWindowGlobal.documentPrincipal; + } else { + principal = browsingContext.window.document.nodePrincipal; + } + + // In practice, note that the principal will never be an expanded principal. + // The are only used for content scripts executed in a Sandbox, and do not + // have a browsing context on their own. + // But we still use this flag because there is no isAddonPrincipal flag. + return principal.isAddonOrExpandedAddonPrincipal; +} + +function isParentProcess(browsingContext) { + if (CanonicalBrowsingContext.isInstance(browsingContext)) { + return browsingContext.currentWindowGlobal.osPid === -1; + } + + // If `browsingContext` is not a `CanonicalBrowsingContext`, then we are + // necessarily in a content process page. + return false; +} + +/** + * Check if the given browsing context is valid for the message handler + * to use. + * + * @param {BrowsingContext} browsingContext + * The browsing context to check. + * @param {object=} options + * @param {string=} options.browserId + * The id of the browser to filter the browsing contexts by (optional). + * @returns {boolean} + * True if the browsing context is valid, false otherwise. + */ +export function isBrowsingContextCompatible(browsingContext, options = {}) { + const { browserId } = options; + + // If a browserId was provided, skip browsing contexts which are not + // associated with this browserId. + if (browserId !== undefined && browsingContext.browserId !== browserId) { + return false; + } + + // Skip: + // - extension contexts until we support debugging webextensions, see Bug 1755014. + // - privileged contexts until we support debugging Chrome context, see Bug 1713440. + return ( + !isExtensionContext(browsingContext) && !isParentProcess(browsingContext) + ); +} -- cgit v1.2.3