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8d04efa62d
Abseil's standard name for this is `ABSL_DIE_IF_NULL`. PiperOrigin-RevId: 483648443 Change-Id: I9d6826443be72b30f71c18972436fa5f9c05048a
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
// Copyright 2022 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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// https://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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#ifndef CONTRIB_LIBZIP_UTILS_UTILS_ZIP_H_
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#define CONTRIB_LIBZIP_UTILS_UTILS_ZIP_H_
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#include <fcntl.h>
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#include "absl/log/die_if_null.h"
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#include "contrib/libzip/sandboxed.h"
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#include "sandboxed_api/util/status_macros.h"
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class LibZip {
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public:
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explicit LibZip(ZipSandbox* sandbox, std::string filename, int flags)
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: sandbox_(ABSL_DIE_IF_NULL(sandbox)),
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api_(sandbox_),
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filename_(std::move(filename)),
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flags_(flags),
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rfd_(open(filename.c_str(), O_RDWR | O_CREAT)) {
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OpenRemote().IgnoreError();
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}
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~LibZip();
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bool IsOpen();
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absl::StatusOr<std::string> GetName(uint64_t index);
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absl::StatusOr<uint64_t> GetNumberEntries();
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absl::StatusOr<std::vector<uint8_t>> ReadFile(uint64_t index);
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absl::StatusOr<std::vector<uint8_t>> ReadFile(const std::string& filename);
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absl::StatusOr<uint64_t> AddFile(const std::string& filename,
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std::vector<uint8_t>& buf);
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absl::StatusOr<uint64_t> AddFile(const std::string& filename, int fd);
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absl::Status ReplaceFile(uint64_t index, std::vector<uint8_t>& buf);
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absl::Status ReplaceFile(uint64_t index, int fd);
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absl::Status DeleteFile(uint64_t index);
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absl::StatusOr<std::string> GetError();
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absl::Status Finish();
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// Save a copy of file to another fd.
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absl::Status Save(int fd);
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// Save a copy to the same fd.
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absl::Status Save();
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protected:
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bool IsOpenLocal();
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absl::Status OpenRemote();
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absl::StatusOr<std::vector<uint8_t>> ReadFile(sapi::v::RemotePtr& zipfile,
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uint32_t size);
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absl::StatusOr<uint64_t> AddFile(const std::string& filename,
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sapi::v::RemotePtr& rzipsource);
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absl::Status ReplaceFile(uint64_t index, sapi::v::RemotePtr& rzipsource);
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absl::StatusOr<void*> GetSource(std::vector<uint8_t>& buf);
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absl::StatusOr<void*> GetSource(int fd, const std::string& mode);
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absl::StatusOr<void*> CreateSourceFromFd(sapi::v::Fd& rfd);
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absl::Status Save(sapi::v::Fd& fd);
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absl::Status CheckOpen();
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absl::Status CheckFinished();
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private:
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ZipSandbox* sandbox_;
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ZipApi api_;
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int flags_;
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std::unique_ptr<sapi::v::RemotePtr> zip_;
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std::unique_ptr<sapi::v::RemotePtr> zipsource_;
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sapi::v::Fd rfd_;
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std::string filename_;
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};
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#endif // CONTRIB_LIBZIP_UTILS_UTILS_ZIP_H_
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