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Added Windows utility classes and methods:

Browse Source 
Win::Service -- A Windows Service wrapper.

Win::LogFile -- a LogBase derivative that allows logging
                to a natively created and handled file.

Win::module_name() -- Get the module name as a
                      std::wstring.

Win::module_name_utf8() -- Get the module name as a UTF-8
                           string.
This commit is contained in:
James Yonan 2015-10-27 20:09:26 -06:00 committed by Lev Stipakov
parent 72d80fc960
commit 7be71b2064
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GPG Key ID: 88670BE258B9C258
1 changed files with 100 additions and 0 deletions
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openvpn/win/logfile.hpp Normal file
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// OpenVPN -- An application to securely tunnel IP networks
// over a single port, with support for SSL/TLS-based
// session authentication and key exchange,
// packet encryption, packet authentication, and
// packet compression.
//
// Copyright (C) 2012-2015 OpenVPN Technologies, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License Version 3
// as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program in the COPYING file.
// If not, see <http://www.gnu.org/licenses/>.
#ifndef OPENVPN_WIN_LOGFILE_H
#define OPENVPN_WIN_LOGFILE_H
#include <windows.h>
#include <string>
#include <openvpn/common/exception.hpp>
#include <openvpn/common/wstring.hpp>
#include <openvpn/log/logbase.hpp>
#include <openvpn/time/timestr.hpp>
#include <openvpn/win/winerr.hpp>
#include <openvpn/win/secattr.hpp>
#include <openvpn/win/scoped_handle.hpp>
namespace openvpn {
namespace Win {
class LogFile : public LogBase
{
public:
typedef RCPtr<LogFile> Ptr;
LogFile(const std::string& fn,
const std::string& sddl_string,
bool append)
: log_handle(create_file(fn, sddl_string, append)),
log_context(this)
{
}
virtual void log(const std::string& str) override
{
DWORD n_written;
const std::string line = date_time() + ' ' + str;
::WriteFile(log_handle(), line.c_str(), line.length(), &n_written, NULL);
}
private:
static ScopedHANDLE create_file(const std::string& fn,
const std::string& sddl_string,
bool append)
{
SecurityAttributes sa(sddl_string, true, "redirect_stdout_stderr");
const std::wstring wfn = wstring::from_utf8(fn);
ScopedHANDLE file(::CreateFileW(
wfn.c_str(),
GENERIC_WRITE,
FILE_SHARE_READ,
&sa.sa,
append ? OPEN_ALWAYS : CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL));
if (!file.defined())
{
const Win::LastError err;
OPENVPN_THROW_EXCEPTION("Win::LogFile: failed to open " << fn << " : " << err.message());
}
// append to logfile?
if (append)
{
if (::SetFilePointer(file(), 0, NULL, FILE_END) == INVALID_SET_FILE_POINTER)
{
const Win::LastError err;
OPENVPN_THROW_EXCEPTION("Win::LogFile: cannot append to " << fn << " : " << err.message());
}
}
return file;
}
ScopedHANDLE log_handle;
Log::Context log_context; // must be initialized last
};
}
}
#endif