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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /toolkit/mozapps/extensions/AddonManagerWebAPI.cpp | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | toolkit/mozapps/extensions/AddonManagerWebAPI.cpp | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/toolkit/mozapps/extensions/AddonManagerWebAPI.cpp b/toolkit/mozapps/extensions/AddonManagerWebAPI.cpp new file mode 100644 index 0000000000..08ca2d1ec9 --- /dev/null +++ b/toolkit/mozapps/extensions/AddonManagerWebAPI.cpp @@ -0,0 +1,170 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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/. */ + +#include "AddonManagerWebAPI.h" + +#include "mozilla/BasePrincipal.h" +#include "mozilla/dom/Document.h" +#include "mozilla/dom/Navigator.h" +#include "mozilla/dom/NavigatorBinding.h" + +#include "mozilla/Preferences.h" +#include "mozilla/StaticPrefs_extensions.h" +#include "nsGlobalWindow.h" +#include "xpcpublic.h" + +#include "nsIDocShell.h" +#include "nsIScriptObjectPrincipal.h" + +namespace mozilla { +using namespace mozilla::dom; + +#ifndef MOZ_THUNDERBIRD +# define MOZ_AMO_HOSTNAME "addons.mozilla.org" +# define MOZ_AMO_STAGE_HOSTNAME "addons.allizom.org" +# define MOZ_AMO_DEV_HOSTNAME "addons-dev.allizom.org" +#else +# define MOZ_AMO_HOSTNAME "addons.thunderbird.net" +# define MOZ_AMO_STAGE_HOSTNAME "addons-stage.thunderbird.net" +# undef MOZ_AMO_DEV_HOSTNAME +#endif + +static bool IsValidHost(const nsACString& host) { + // This hidden pref allows users to disable mozAddonManager entirely if they + // want for fingerprinting resistance. Someone like Tor browser will use this + // pref. + if (StaticPrefs::privacy_resistFingerprinting_block_mozAddonManager()) { + return false; + } + + if (host.EqualsLiteral(MOZ_AMO_HOSTNAME)) { + return true; + } + + // When testing allow access to the developer sites. + if (StaticPrefs::extensions_webapi_testing()) { + if (host.LowerCaseEqualsLiteral(MOZ_AMO_STAGE_HOSTNAME) || +#ifdef MOZ_AMO_DEV_HOSTNAME + host.LowerCaseEqualsLiteral(MOZ_AMO_DEV_HOSTNAME) || +#endif + host.LowerCaseEqualsLiteral("example.com")) { + return true; + } + } + + return false; +} + +// Checks if the given uri is secure and matches one of the hosts allowed to +// access the API. +bool AddonManagerWebAPI::IsValidSite(nsIURI* uri) { + if (!uri) { + return false; + } + + if (!uri->SchemeIs("https")) { + if (!(xpc::IsInAutomation() && + StaticPrefs::extensions_webapi_testing_http())) { + return false; + } + } + + nsAutoCString host; + nsresult rv = uri->GetHost(host); + if (NS_FAILED(rv)) { + return false; + } + + return IsValidHost(host); +} + +#ifndef ANDROID +bool AddonManagerWebAPI::IsAPIEnabled(JSContext* aCx, JSObject* aGlobal) { + MOZ_DIAGNOSTIC_ASSERT(JS_IsGlobalObject(aGlobal)); + nsCOMPtr<nsPIDOMWindowInner> win = xpc::WindowOrNull(aGlobal); + if (!win) { + return false; + } + + // Check that the current window and all parent frames are allowed access to + // the API. + while (win) { + nsCOMPtr<nsIScriptObjectPrincipal> sop = do_QueryInterface(win); + if (!sop) { + return false; + } + + nsCOMPtr<nsIPrincipal> principal = sop->GetPrincipal(); + if (!principal) { + return false; + } + + // Reaching a window with a system principal means we have reached + // privileged UI of some kind so stop at this point and allow access. + if (principal->IsSystemPrincipal()) { + return true; + } + + nsCOMPtr<nsIDocShell> docShell = win->GetDocShell(); + if (!docShell) { + // This window has been torn down so don't allow access to the API. + return false; + } + + if (!IsValidSite(win->GetDocumentURI())) { + return false; + } + + // Checks whether there is a parent frame of the same type. This won't cross + // mozbrowser or chrome or fission/process boundaries. + nsCOMPtr<nsIDocShellTreeItem> parent; + nsresult rv = docShell->GetInProcessSameTypeParent(getter_AddRefs(parent)); + if (NS_FAILED(rv)) { + return false; + } + + // No parent means we've hit a mozbrowser or chrome or process boundary. + if (!parent) { + // With Fission, a cross-origin iframe has an out-of-process parent, but + // DocShell knows nothing about it. We need to ask BrowsingContext here, + // and only allow API access if AMO is actually at the top, not framed + // by evilleagueofevil.com. + return docShell->GetBrowsingContext()->IsTopContent(); + } + + Document* doc = win->GetDoc(); + if (!doc) { + return false; + } + + doc = doc->GetInProcessParentDocument(); + if (!doc) { + // Getting here means something has been torn down so fail safe. + return false; + } + + win = doc->GetInnerWindow(); + } + + // Found a document with no inner window, don't grant access to the API. + return false; +} +#else // We don't support mozAddonManager on Android +bool AddonManagerWebAPI::IsAPIEnabled(JSContext* aCx, JSObject* aGlobal) { + return false; +} +#endif // ifndef ANDROID + +namespace dom { + +bool AddonManagerPermissions::IsHostPermitted(const GlobalObject& /*unused*/, + const nsAString& host) { + return IsValidHost(NS_ConvertUTF16toUTF8(host)); +} + +} // namespace dom + +} // namespace mozilla |