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/*
* Copyright (C) 2015 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 "flatten/Archive.h"
#include "util/Files.h"
#include "util/StringPiece.h"
#include <cstdio>
#include <memory>
#include <string>
#include <vector>
#include <ziparchive/zip_writer.h>
namespace aapt {
namespace {
struct DirectoryWriter : public IArchiveWriter {
std::string mOutDir;
std::unique_ptr<FILE, decltype(fclose)*> mFile = { nullptr, fclose };
bool open(IDiagnostics* diag, const StringPiece& outDir) {
mOutDir = outDir.toString();
file::FileType type = file::getFileType(mOutDir);
if (type == file::FileType::kNonexistant) {
diag->error(DiagMessage() << "directory " << mOutDir << " does not exist");
return false;
} else if (type != file::FileType::kDirectory) {
diag->error(DiagMessage() << mOutDir << " is not a directory");
return false;
}
return true;
}
bool startEntry(const StringPiece& path, uint32_t flags) override {
if (mFile) {
return false;
}
std::string fullPath = mOutDir;
file::appendPath(&fullPath, path);
file::mkdirs(file::getStem(fullPath));
mFile = { fopen(fullPath.data(), "wb"), fclose };
if (!mFile) {
return false;
}
return true;
}
bool writeEntry(const BigBuffer& buffer) override {
if (!mFile) {
return false;
}
for (const BigBuffer::Block& b : buffer) {
if (fwrite(b.buffer.get(), 1, b.size, mFile.get()) != b.size) {
mFile.reset(nullptr);
return false;
}
}
return true;
}
bool writeEntry(const void* data, size_t len) override {
if (fwrite(data, 1, len, mFile.get()) != len) {
mFile.reset(nullptr);
return false;
}
return true;
}
bool finishEntry() override {
if (!mFile) {
return false;
}
mFile.reset(nullptr);
return true;
}
};
struct ZipFileWriter : public IArchiveWriter {
std::unique_ptr<FILE, decltype(fclose)*> mFile = { nullptr, fclose };
std::unique_ptr<ZipWriter> mWriter;
bool open(IDiagnostics* diag, const StringPiece& path) {
mFile = { fopen(path.data(), "w+b"), fclose };
if (!mFile) {
diag->error(DiagMessage() << "failed to open " << path << ": " << strerror(errno));
return false;
}
mWriter = util::make_unique<ZipWriter>(mFile.get());
return true;
}
bool startEntry(const StringPiece& path, uint32_t flags) override {
if (!mWriter) {
return false;
}
size_t zipFlags = 0;
if (flags & ArchiveEntry::kCompress) {
zipFlags |= ZipWriter::kCompress;
}
if (flags & ArchiveEntry::kAlign) {
zipFlags |= ZipWriter::kAlign32;
}
int32_t result = mWriter->StartEntry(path.data(), zipFlags);
if (result != 0) {
return false;
}
return true;
}
bool writeEntry(const void* data, size_t len) override {
int32_t result = mWriter->WriteBytes(data, len);
if (result != 0) {
return false;
}
return true;
}
bool writeEntry(const BigBuffer& buffer) override {
for (const BigBuffer::Block& b : buffer) {
int32_t result = mWriter->WriteBytes(b.buffer.get(), b.size);
if (result != 0) {
return false;
}
}
return true;
}
bool finishEntry() override {
int32_t result = mWriter->FinishEntry();
if (result != 0) {
return false;
}
return true;
}
virtual ~ZipFileWriter() {
if (mWriter) {
mWriter->Finish();
}
}
};
} // namespace
std::unique_ptr<IArchiveWriter> createDirectoryArchiveWriter(IDiagnostics* diag,
const StringPiece& path) {
std::unique_ptr<DirectoryWriter> writer = util::make_unique<DirectoryWriter>();
if (!writer->open(diag, path)) {
return {};
}
return std::move(writer);
}
std::unique_ptr<IArchiveWriter> createZipFileArchiveWriter(IDiagnostics* diag,
const StringPiece& path) {
std::unique_ptr<ZipFileWriter> writer = util::make_unique<ZipFileWriter>();
if (!writer->open(diag, path)) {
return {};
}
return std::move(writer);
}
} // namespace aapt
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