зеркало из https://github.com/mozilla/gecko-dev.git
107 строки
2.8 KiB
C++
107 строки
2.8 KiB
C++
/* -*- 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 "FileSystemSecurity.h"
|
|
#include "FileSystemUtils.h"
|
|
#include "mozilla/ClearOnShutdown.h"
|
|
#include "mozilla/ipc/BackgroundParent.h"
|
|
#include "mozilla/StaticPtr.h"
|
|
|
|
namespace mozilla::dom {
|
|
|
|
namespace {
|
|
|
|
StaticRefPtr<FileSystemSecurity> gFileSystemSecurity;
|
|
|
|
} // namespace
|
|
|
|
/* static */
|
|
already_AddRefed<FileSystemSecurity> FileSystemSecurity::Get() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mozilla::ipc::AssertIsInMainProcess();
|
|
|
|
RefPtr<FileSystemSecurity> service = gFileSystemSecurity.get();
|
|
return service.forget();
|
|
}
|
|
|
|
/* static */
|
|
already_AddRefed<FileSystemSecurity> FileSystemSecurity::GetOrCreate() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mozilla::ipc::AssertIsInMainProcess();
|
|
|
|
if (!gFileSystemSecurity) {
|
|
gFileSystemSecurity = new FileSystemSecurity();
|
|
ClearOnShutdown(&gFileSystemSecurity);
|
|
}
|
|
|
|
RefPtr<FileSystemSecurity> service = gFileSystemSecurity.get();
|
|
return service.forget();
|
|
}
|
|
|
|
FileSystemSecurity::FileSystemSecurity() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mozilla::ipc::AssertIsInMainProcess();
|
|
}
|
|
|
|
FileSystemSecurity::~FileSystemSecurity() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mozilla::ipc::AssertIsInMainProcess();
|
|
}
|
|
|
|
void FileSystemSecurity::GrantAccessToContentProcess(
|
|
ContentParentId aId, const nsAString& aDirectoryPath) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mozilla::ipc::AssertIsInMainProcess();
|
|
|
|
mPaths.WithEntryHandle(aId, [&](auto&& entry) {
|
|
if (entry && entry.Data()->Contains(aDirectoryPath)) {
|
|
return;
|
|
}
|
|
|
|
entry.OrInsertWith([] { return MakeUnique<nsTArray<nsString>>(); })
|
|
->AppendElement(aDirectoryPath);
|
|
});
|
|
}
|
|
|
|
void FileSystemSecurity::Forget(ContentParentId aId) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mozilla::ipc::AssertIsInMainProcess();
|
|
|
|
mPaths.Remove(aId);
|
|
}
|
|
|
|
bool FileSystemSecurity::ContentProcessHasAccessTo(ContentParentId aId,
|
|
const nsAString& aPath) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mozilla::ipc::AssertIsInMainProcess();
|
|
|
|
#if defined(XP_WIN)
|
|
if (StringBeginsWith(aPath, u"..\\"_ns) ||
|
|
FindInReadable(u"\\..\\"_ns, aPath)) {
|
|
return false;
|
|
}
|
|
#elif defined(XP_UNIX)
|
|
if (StringBeginsWith(aPath, u"../"_ns) || FindInReadable(u"/../"_ns, aPath)) {
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
nsTArray<nsString>* paths;
|
|
if (!mPaths.Get(aId, &paths)) {
|
|
return false;
|
|
}
|
|
|
|
for (uint32_t i = 0, len = paths->Length(); i < len; ++i) {
|
|
if (FileSystemUtils::IsDescendantPath(paths->ElementAt(i), aPath)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
} // namespace mozilla::dom
|