Move components/zip to third_party/zip

components/zip/zip.cc

-// 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 "components/zip/zip.h"
-
-#include "base/bind.h"
-#include "base/file_util.h"
-#include "base/logging.h"
-#include "base/string16.h"
-#include "base/string_util.h"
-#include "components/zip/zip_internal.h"
-#include "components/zip/zip_reader.h"
-#include "net/base/file_stream.h"
-
-#if defined(USE_SYSTEM_MINIZIP)
-#include <minizip/unzip.h>
-#include <minizip/zip.h>
-#else
-#include "third_party/zlib/contrib/minizip/unzip.h"
-#include "third_party/zlib/contrib/minizip/zip.h"
-#endif
-
-namespace {
-
-bool AddFileToZip(zipFile zip_file, const base::FilePath& src_dir) {
-  net::FileStream stream(NULL);
-  int flags = base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ;
-  if (stream.OpenSync(src_dir, flags) != 0) {
-    DLOG(ERROR) << "Could not open stream for path "
-                << src_dir.value();
-    return false;
-  }
-
-  int num_bytes;
-  char buf[zip::internal::kZipBufSize];
-  do {
-    num_bytes = stream.ReadSync(buf, zip::internal::kZipBufSize);
-    if (num_bytes > 0) {
-      if (ZIP_OK != zipWriteInFileInZip(zip_file, buf, num_bytes)) {
-        DLOG(ERROR) << "Could not write data to zip for path "
-                    << src_dir.value();
-        return false;
-      }
-    }
-  } while (num_bytes > 0);
-
-  return true;
-}
-
-bool AddEntryToZip(zipFile zip_file, const base::FilePath& path,
-                   const base::FilePath& root_path) {
-  std::string str_path =
-      path.AsUTF8Unsafe().substr(root_path.value().length() + 1);
-#if defined(OS_WIN)
-  ReplaceSubstringsAfterOffset(&str_path, 0u, "\\", "/");
-#endif
-
-  bool is_directory = file_util::DirectoryExists(path);
-  if (is_directory)
-    str_path += "/";
-
-  if (ZIP_OK != zipOpenNewFileInZip(
-      zip_file, str_path.c_str(),
-      NULL, NULL, 0u, NULL, 0u, NULL,  // file info, extrafield local, length,
-                                       // extrafield global, length, comment
-      Z_DEFLATED, Z_DEFAULT_COMPRESSION)) {
-    DLOG(ERROR) << "Could not open zip file entry " << str_path;
-    return false;
-  }
-
-  bool success = true;
-  if (!is_directory) {
-    success = AddFileToZip(zip_file, path);
-  }
-
-  if (ZIP_OK != zipCloseFileInZip(zip_file)) {
-    DLOG(ERROR) << "Could not close zip file entry " << str_path;
-    return false;
-  }
-
-  return success;
-}
-
-bool ExcludeNoFilesFilter(const base::FilePath& file_path) {
-  return true;
-}
-
-bool ExcludeHiddenFilesFilter(const base::FilePath& file_path) {
-  return file_path.BaseName().value()[0] != '.';
-}
-
-}  // namespace
-
-namespace zip {
-
-bool Unzip(const base::FilePath& src_file, const base::FilePath& dest_dir) {
-  ZipReader reader;
-  if (!reader.Open(src_file)) {
-    DLOG(WARNING) << "Failed to open " << src_file.value();
-    return false;
-  }
-  while (reader.HasMore()) {
-    if (!reader.OpenCurrentEntryInZip()) {
-      DLOG(WARNING) << "Failed to open the current file in zip";
-      return false;
-    }
-    if (reader.current_entry_info()->is_unsafe()) {
-      DLOG(WARNING) << "Found an unsafe file in zip "
-                    << reader.current_entry_info()->file_path().value();
-      return false;
-    }
-    if (!reader.ExtractCurrentEntryIntoDirectory(dest_dir)) {
-      DLOG(WARNING) << "Failed to extract "
-                    << reader.current_entry_info()->file_path().value();
-      return false;
-    }
-    if (!reader.AdvanceToNextEntry()) {
-      DLOG(WARNING) << "Failed to advance to the next file";
-      return false;
-    }
-  }
-  return true;
-}
-
-bool ZipWithFilterCallback(const base::FilePath& src_dir,
-                           const base::FilePath& dest_file,
-                           const FilterCallback& filter_cb) {
-  DCHECK(file_util::DirectoryExists(src_dir));
-
-  zipFile zip_file = internal::OpenForZipping(dest_file.AsUTF8Unsafe(),
-                                              APPEND_STATUS_CREATE);
-
-  if (!zip_file) {
-    DLOG(WARNING) << "couldn't create file " << dest_file.value();
-    return false;
-  }
-
-  bool success = true;
-  file_util::FileEnumerator file_enumerator(src_dir, true /* recursive */,
-      file_util::FileEnumerator::FILES |
-      file_util::FileEnumerator::DIRECTORIES);
-  for (base::FilePath path = file_enumerator.Next(); !path.value().empty();
-       path = file_enumerator.Next()) {
-    if (!filter_cb.Run(path)) {
-      continue;
-    }
-
-    if (!AddEntryToZip(zip_file, path, src_dir)) {
-      success = false;
-      return false;
-    }
-  }
-
-  if (ZIP_OK != zipClose(zip_file, NULL)) {
-    DLOG(ERROR) << "Error closing zip file " << dest_file.value();
-    return false;
-  }
-
-  return success;
-}
-
-bool Zip(const base::FilePath& src_dir, const base::FilePath& dest_file,
-         bool include_hidden_files) {
-  if (include_hidden_files) {
-    return ZipWithFilterCallback(
-        src_dir, dest_file, base::Bind(&ExcludeNoFilesFilter));
-  } else {
-    return ZipWithFilterCallback(
-        src_dir, dest_file, base::Bind(&ExcludeHiddenFilesFilter));
-  }
-}
-
-#if defined(OS_POSIX)
-bool ZipFiles(const base::FilePath& src_dir,
-              const std::vector<base::FilePath>& src_relative_paths,
-              int dest_fd) {
-  DCHECK(file_util::DirectoryExists(src_dir));
-  zipFile zip_file = internal::OpenFdForZipping(dest_fd, APPEND_STATUS_CREATE);
-
-  if (!zip_file) {
-    DLOG(ERROR) << "couldn't create file for fd " << dest_fd;
-    return false;
-  }
-
-  bool success = true;
-  for (std::vector<base::FilePath>::const_iterator iter =
-           src_relative_paths.begin();
-      iter != src_relative_paths.end(); ++iter) {
-    const base::FilePath& path = src_dir.Append(*iter);
-    if (!AddEntryToZip(zip_file, path, src_dir)) {
-      // TODO(hshi): clean up the partial zip file when error occurs.
-      success = false;
-      break;
-    }
-  }
-
-  if (ZIP_OK != zipClose(zip_file, NULL)) {
-    DLOG(ERROR) << "Error closing zip file for fd " << dest_fd;
-    success = false;
-  }
-
-  return success;
-}
-#endif  // defined(OS_POSIX)
-
-}  // namespace zip