sandboxed-api/contrib/brotli/example/main.cc
Christian Blichmann 4c87556901 Use Abseil's log/flags instead of glog/gflags
Follow-up changes might be required to fully fix up the contrib sandboxes.

PiperOrigin-RevId: 482475998
Change-Id: Iff631eb838a024b2f047a1be61bb27e35a8ff2f4
2022-10-20 06:48:51 -07:00

97 lines
3.1 KiB
C++

// Copyright 2022 Google LLC
//
// 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
//
// https://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 <iostream>
#include <string>
#include "absl/flags/flag.h"
#include "absl/flags/parse.h"
#include "absl/log/globals.h"
#include "absl/log/initialize.h"
#include "contrib/brotli/sandboxed.h"
#include "contrib/brotli/utils/utils_brotli.h"
#include "contrib/brotli/utils/utils_brotli_dec.h"
#include "contrib/brotli/utils/utils_brotli_enc.h"
ABSL_FLAG(bool, decompress, false, "decompress");
absl::Status CompressInMemory(BrotliSandbox& sandbox,
const std::string& in_file_s,
const std::string& out_file_s) {
BrotliEncoder enc(&sandbox);
if (!enc.IsInit()) {
return absl::UnavailableError("Unable to init brotli encoder");
}
SAPI_ASSIGN_OR_RETURN(std::vector<uint8_t> buf_in, ReadFile(in_file_s));
SAPI_RETURN_IF_ERROR(enc.Compress(buf_in));
SAPI_ASSIGN_OR_RETURN(std::vector<uint8_t> buf_out, enc.TakeOutput());
SAPI_RETURN_IF_ERROR(WriteFile(out_file_s, buf_out));
return absl::OkStatus();
}
absl::Status DecompressInMemory(BrotliSandbox& sandbox,
const std::string& in_file_s,
const std::string& out_file_s) {
BrotliDecoder dec(&sandbox);
if (!dec.IsInit()) {
return absl::UnavailableError("Unable to init brotli decoder");
}
SAPI_ASSIGN_OR_RETURN(std::vector<uint8_t> buf_in, ReadFile(in_file_s));
SAPI_ASSIGN_OR_RETURN(BrotliDecoderResult ret, dec.Decompress(buf_in));
if (ret != BROTLI_DECODER_RESULT_SUCCESS) {
return absl::UnavailableError("Compressed file corrupt");
}
SAPI_ASSIGN_OR_RETURN(std::vector<uint8_t> buf_out, dec.TakeOutput());
SAPI_RETURN_IF_ERROR(WriteFile(out_file_s, buf_out));
return absl::OkStatus();
}
int main(int argc, char* argv[]) {
std::string prog_name(argv[0]);
absl::SetStderrThreshold(absl::LogSeverityAtLeast::kInfo);
std::vector<char*> args = absl::ParseCommandLine(argc, argv);
absl::InitializeLog();
if (args.size() != 3) {
std::cerr << "Usage:\n " << prog_name << " INPUT OUTPUT\n";
return EXIT_FAILURE;
}
std::string in_file_s(args[1]);
std::string out_file_s(args[2]);
BrotliSapiSandbox sandbox;
if (!sandbox.Init().ok()) {
std::cerr << "Unable to start sandbox\n";
return EXIT_FAILURE;
}
absl::Status status;
if (absl::GetFlag(FLAGS_decompress)) {
status = DecompressInMemory(sandbox, in_file_s, out_file_s);
} else {
status = CompressInMemory(sandbox, in_file_s, out_file_s);
}
if (!status.ok()) {
std::cerr << status << "\n";
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}