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76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
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// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "utils.h" // NOLINT(build/include)
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#include <unistd.h>
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#include "sandboxed_api/sandbox2/util/fileops.h"
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#include "sandboxed_api/sandbox2/util/temp_file.h"
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namespace gdal::sandbox::utils {
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namespace {
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inline constexpr absl::string_view kProjDbEnvVariableName = "PROJ_PATH";
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inline constexpr absl::string_view kDefaultProjDbPath
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= "/usr/local/share/proj/proj.db";
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} // namespace
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TempFile::TempFile(absl::string_view prefix) {
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auto file_data = sandbox2::CreateNamedTempFile(prefix);
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if (file_data.ok()) {
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file_data_ = std::move(file_data.value());
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}
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}
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TempFile::~TempFile() {
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if (HasValue()) {
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unlink(file_data_.value().first.c_str());
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}
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}
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bool TempFile::HasValue() const {
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return file_data_.has_value();
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}
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int TempFile::GetFd() const {
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return file_data_.value().second;
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}
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std::string TempFile::GetPath() const {
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return file_data_.value().first;
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}
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std::optional<std::string> FindProjDbPath() {
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const char* proj_db_path_ptr = std::getenv(kProjDbEnvVariableName.data());
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std::string proj_db_path = proj_db_path_ptr == nullptr ?
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std::string(kDefaultProjDbPath) : std::string(proj_db_path_ptr);
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if (!sandbox2::file_util::fileops::Exists(proj_db_path, false)) {
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return std::nullopt;
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}
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return proj_db_path;
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}
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bool IsAbsolute(absl::string_view path) {
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return path.length() > 0 && path.at(0) == '/';
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}
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} // namespace gdal::sandbox::utils
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