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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/common/safe_browsing/zip_analyzer.h"
#include "base/logging.h"
#include "chrome/common/safe_browsing/download_protection_util.h"
#include "components/zip/zip_reader.h"
namespace safe_browsing {
namespace zip_analyzer {
void AnalyzeZipFile(base::PlatformFile zip_file, Results* results) {
zip::ZipReader reader;
if (!reader.OpenFromPlatformFile(zip_file)) {
VLOG(1) << "Failed to open zip file";
return;
}
bool advanced = true;
for (; reader.HasMore(); advanced = reader.AdvanceToNextEntry()) {
if (!advanced) {
VLOG(1) << "Could not advance to next entry, aborting zip scan.";
return;
}
if (!reader.OpenCurrentEntryInZip()) {
VLOG(1) << "Failed to open current entry in zip file";
continue;
}
const base::FilePath& file = reader.current_entry_info()->file_path();
if (download_protection_util::IsBinaryFile(file)) {
// Don't consider an archived archive to be executable, but record
// a histogram.
if (download_protection_util::IsArchiveFile(file)) {
results->has_archive = true;
} else {
VLOG(2) << "Downloaded a zipped executable: " << file.value();
results->has_executable = true;
break;
}
} else {
VLOG(3) << "Ignoring non-binary file: " << file.value();
}
}
results->success = true;
}
} // namespace zip_analyzer
} // namespace safe_browsing
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