forked from mirrors/gecko-dev
00e98538aa
Differential Revision: https://phabricator.services.mozilla.com/D21106 --HG-- extra : rebase_source : ea3f51c2c11247114deccbc86e90fb02b8a97257
109 lines
2.7 KiB
C++
109 lines
2.7 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/StaticPtr.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
namespace {
|
|
|
|
StaticRefPtr<FileSystemSecurity> gFileSystemSecurity;
|
|
|
|
} // namespace
|
|
|
|
/* static */
|
|
already_AddRefed<FileSystemSecurity> FileSystemSecurity::Get() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
AssertIsInMainProcess();
|
|
|
|
RefPtr<FileSystemSecurity> service = gFileSystemSecurity.get();
|
|
return service.forget();
|
|
}
|
|
|
|
/* static */
|
|
already_AddRefed<FileSystemSecurity> FileSystemSecurity::GetOrCreate() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
AssertIsInMainProcess();
|
|
|
|
if (!gFileSystemSecurity) {
|
|
gFileSystemSecurity = new FileSystemSecurity();
|
|
ClearOnShutdown(&gFileSystemSecurity);
|
|
}
|
|
|
|
RefPtr<FileSystemSecurity> service = gFileSystemSecurity.get();
|
|
return service.forget();
|
|
}
|
|
|
|
FileSystemSecurity::FileSystemSecurity() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
AssertIsInMainProcess();
|
|
}
|
|
|
|
FileSystemSecurity::~FileSystemSecurity() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
AssertIsInMainProcess();
|
|
}
|
|
|
|
void FileSystemSecurity::GrantAccessToContentProcess(
|
|
ContentParentId aId, const nsAString& aDirectoryPath) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
AssertIsInMainProcess();
|
|
|
|
nsTArray<nsString>* paths;
|
|
if (!mPaths.Get(aId, &paths)) {
|
|
paths = new nsTArray<nsString>();
|
|
mPaths.Put(aId, paths);
|
|
} else if (paths->Contains(aDirectoryPath)) {
|
|
return;
|
|
}
|
|
|
|
paths->AppendElement(aDirectoryPath);
|
|
}
|
|
|
|
void FileSystemSecurity::Forget(ContentParentId aId) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
AssertIsInMainProcess();
|
|
|
|
mPaths.Remove(aId);
|
|
}
|
|
|
|
bool FileSystemSecurity::ContentProcessHasAccessTo(ContentParentId aId,
|
|
const nsAString& aPath) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
AssertIsInMainProcess();
|
|
|
|
#if defined(XP_WIN)
|
|
if (StringBeginsWith(aPath, NS_LITERAL_STRING("..\\")) ||
|
|
FindInReadable(NS_LITERAL_STRING("\\..\\"), aPath)) {
|
|
return false;
|
|
}
|
|
#elif defined(XP_UNIX)
|
|
if (StringBeginsWith(aPath, NS_LITERAL_STRING("../")) ||
|
|
FindInReadable(NS_LITERAL_STRING("/../"), 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 dom
|
|
} // namespace mozilla
|