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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <dirent.h>
#include <set>
#include <string>
#include "TestHelpers.h"
#include "android-base/macros.h"
#include "android-base/stringprintf.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "idmap2/FileUtils.h"
#include "private/android_filesystem_config.h"
using ::testing::NotNull;
namespace android::idmap2::utils {
TEST(FileUtilsTests, FindFilesFindEverythingNonRecursive) {
const auto& root = GetTestDataPath();
auto v = utils::FindFiles(root, false,
[](unsigned char type ATTRIBUTE_UNUSED,
const std::string& path ATTRIBUTE_UNUSED) -> bool { return true; });
ASSERT_THAT(v, NotNull());
ASSERT_EQ(v->size(), 7U);
ASSERT_EQ(std::set<std::string>(v->begin(), v->end()), std::set<std::string>({
root + "/.",
root + "/..",
root + "/overlay",
root + "/target",
root + "/signature-overlay",
root + "/system-overlay",
root + "/system-overlay-invalid",
}));
}
TEST(FileUtilsTests, FindFilesFindApkFilesRecursive) {
const auto& root = GetTestDataPath();
auto v = utils::FindFiles(root, true, [](unsigned char type, const std::string& path) -> bool {
return type == DT_REG && path.size() > 4 && path.compare(path.size() - 4, 4, ".apk") == 0;
});
ASSERT_THAT(v, NotNull());
ASSERT_EQ(v->size(), 10U);
ASSERT_EQ(std::set<std::string>(v->begin(), v->end()),
std::set<std::string>(
{root + "/target/target.apk", root + "/target/target-no-overlayable.apk",
root + "/overlay/overlay.apk", root + "/overlay/overlay-no-name.apk",
root + "/overlay/overlay-no-name-static.apk",
root + "/overlay/overlay-static-1.apk", root + "/overlay/overlay-static-2.apk",
root + "/signature-overlay/signature-overlay.apk",
root + "/system-overlay/system-overlay.apk",
root + "/system-overlay-invalid/system-overlay-invalid.apk"}));
}
TEST(FileUtilsTests, ReadFile) {
int pipefd[2];
ASSERT_EQ(pipe(pipefd), 0);
ASSERT_EQ(write(pipefd[1], "foobar", 6), 6);
close(pipefd[1]);
auto data = ReadFile(pipefd[0]);
ASSERT_THAT(data, NotNull());
ASSERT_EQ(*data, "foobar");
close(pipefd[0]);
}
#ifdef __ANDROID__
TEST(FileUtilsTests, UidHasWriteAccessToPath) {
constexpr const char* tmp_path = "/data/local/tmp/test@idmap";
const std::string cache_path(base::StringPrintf("%s/test@idmap", kIdmapCacheDir));
const std::string sneaky_cache_path(base::StringPrintf("/data/../%s/test@idmap", kIdmapCacheDir));
ASSERT_TRUE(UidHasWriteAccessToPath(AID_ROOT, tmp_path));
ASSERT_TRUE(UidHasWriteAccessToPath(AID_ROOT, cache_path));
ASSERT_TRUE(UidHasWriteAccessToPath(AID_ROOT, sneaky_cache_path));
ASSERT_TRUE(UidHasWriteAccessToPath(AID_SYSTEM, tmp_path));
ASSERT_TRUE(UidHasWriteAccessToPath(AID_SYSTEM, cache_path));
ASSERT_TRUE(UidHasWriteAccessToPath(AID_SYSTEM, sneaky_cache_path));
constexpr const uid_t AID_SOME_APP = AID_SYSTEM + 1;
ASSERT_TRUE(UidHasWriteAccessToPath(AID_SOME_APP, tmp_path));
ASSERT_FALSE(UidHasWriteAccessToPath(AID_SOME_APP, cache_path));
ASSERT_FALSE(UidHasWriteAccessToPath(AID_SOME_APP, sneaky_cache_path));
}
#endif
} // namespace android::idmap2::utils
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