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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/file_select_helper.h"
#include <Cocoa/Cocoa.h>
#include <sys/stat.h>
#include <string_view>
#include "base/apple/foundation_util.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/functional/bind.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "third_party/zlib/google/zip.h"
#include "ui/shell_dialogs/selected_file_info.h"
namespace {
std::string_view AsStringPiece(NSString* str) {
const char* data = [str fileSystemRepresentation];
return data ? std::string_view(data) : std::string_view();
}
// Given the |path| of a package, returns the destination that the package
// should be zipped to. Returns an empty path on any errors.
base::FilePath ZipDestination(const base::FilePath& path) {
base::FilePath dest;
if (!base::GetTempDir(&dest)) {
// Couldn't get the temporary directory.
return base::FilePath();
}
// TMPDIR/<bundleID>/zip_cache/<guid>
NSString* bundleID = [[NSBundle mainBundle] bundleIdentifier];
dest = dest.Append(AsStringPiece(bundleID));
dest = dest.Append("zip_cache");
NSString* guid = [[NSProcessInfo processInfo] globallyUniqueString];
dest = dest.Append(AsStringPiece(guid));
return dest;
}
// Returns the path of the package and its components relative to the package's
// parent directory.
std::vector<base::FilePath> RelativePathsForPackage(
const base::FilePath& package) {
// Get the base directory.
base::FilePath base_dir = package.DirName();
// Add the package as the first relative path.
std::vector<base::FilePath> relative_paths;
relative_paths.push_back(package.BaseName());
// Add the components of the package as relative paths.
base::FileEnumerator file_enumerator(
package,
true /* recursive */,
base::FileEnumerator::FILES | base::FileEnumerator::DIRECTORIES);
for (base::FilePath path = file_enumerator.Next(); !path.empty();
path = file_enumerator.Next()) {
base::FilePath relative_path;
bool success = base_dir.AppendRelativePath(path, &relative_path);
if (success)
relative_paths.push_back(relative_path);
}
return relative_paths;
}
} // namespace
base::FilePath FileSelectHelper::ZipPackage(const base::FilePath& path) {
base::FilePath dest(ZipDestination(path));
if (dest.empty())
return dest;
if (!base::CreateDirectory(dest.DirName()))
return base::FilePath();
base::File file(dest, base::File::FLAG_CREATE | base::File::FLAG_WRITE);
if (!file.IsValid())
return base::FilePath();
std::vector<base::FilePath> files_to_zip(RelativePathsForPackage(path));
base::FilePath base_dir = path.DirName();
bool success = zip::ZipFiles(base_dir, files_to_zip, file.GetPlatformFile());
int result = -1;
if (success)
result = fchmod(file.GetPlatformFile(), S_IRUSR);
return result >= 0 ? dest : base::FilePath();
}
void FileSelectHelper::ProcessSelectedFilesMac(
const std::vector<ui::SelectedFileInfo>& files) {
// Make a mutable copy of the input files.
std::vector<ui::SelectedFileInfo> files_out(files);
std::vector<base::FilePath> temporary_files;
for (auto& file_info : files_out) {
NSString* filename = base::apple::FilePathToNSString(file_info.local_path);
BOOL isPackage =
[[NSWorkspace sharedWorkspace] isFilePackageAtPath:filename];
if (isPackage && base::DirectoryExists(file_info.local_path)) {
base::FilePath result = ZipPackage(file_info.local_path);
if (!result.empty()) {
temporary_files.push_back(result);
file_info.local_path = result;
file_info.file_path = result;
file_info.display_name.append(".zip");
}
}
}
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&FileSelectHelper::ProcessSelectedFilesMacOnUIThread,
base::Unretained(this), files_out, temporary_files));
}
void FileSelectHelper::ProcessSelectedFilesMacOnUIThread(
const std::vector<ui::SelectedFileInfo>& files,
const std::vector<base::FilePath>& temporary_files) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
if (!temporary_files.empty()) {
temporary_files_.insert(
temporary_files_.end(), temporary_files.begin(), temporary_files.end());
// Typically, |temporary_files| are deleted after |web_contents_| is
// destroyed. If |web_contents_| is already NULL, then the temporary files
// need to be deleted now.
if (!web_contents_) {
DeleteTemporaryFiles();
RunFileChooserEnd();
return;
}
}
ConvertToFileChooserFileInfoList(files);
}
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