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// Copyright 2018 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/ash/smb_client/smb_service_helper.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
namespace ash::smb_client {
bool ParseUserPrincipalName(const std::string& user_principal_name,
std::string* user_name,
std::string* workgroup) {
DCHECK(user_name);
DCHECK(workgroup);
std::vector<std::string> parts = base::SplitString(
user_principal_name, "@", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
if (parts.size() != 2 || parts.at(0).empty() || parts.at(1).empty()) {
// Don't log user_principal_name, it might contain sensitive data.
LOG(ERROR) << "Failed to parse user principal name. Expected form "
"'user@some.realm'.";
return false;
}
*user_name = std::move(parts.at(0));
*workgroup = base::ToUpperASCII(std::move(parts.at(1)));
return true;
}
bool ParseDownLevelLogonName(const std::string& logon_name,
std::string* user_name,
std::string* workgroup) {
DCHECK(user_name);
DCHECK(workgroup);
std::vector<std::string> parts = base::SplitString(
logon_name, "\\", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
if (parts.size() != 2 || parts.at(0).empty() || parts.at(1).empty()) {
// Don't log logon_name, it might contain sensitive data.
LOG(ERROR) << "Failed to parse down-level logon name. Expected form "
"'DOMAIN\\user'.";
return false;
}
*workgroup = base::ToUpperASCII(std::move(parts.at(0)));
*user_name = std::move(parts.at(1));
return true;
}
bool ParseUserName(const std::string& name,
std::string* user_name,
std::string* workgroup) {
if (name.find('@') != std::string::npos) {
return ParseUserPrincipalName(name, user_name, workgroup);
} else if (name.find('\\') != std::string::npos) {
return ParseDownLevelLogonName(name, user_name, workgroup);
}
// If user principal or down-level logon name format is not detected, fall
// back to treating the name as a plain user name.
*user_name = name;
return true;
}
} // namespace ash::smb_client
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