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//
// EventLogChannel.cpp
//
// Library: Foundation
// Package: Logging
// Module: EventLogChannel
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/EventLogChannel.h"
#include "Poco/Message.h"
#include "Poco/String.h"
#include "pocomsg.h"
#if defined(POCO_WIN32_UTF8)
#include "Poco/UnicodeConverter.h"
#endif
namespace Poco {
const std::string EventLogChannel::PROP_NAME = "name";
const std::string EventLogChannel::PROP_HOST = "host";
const std::string EventLogChannel::PROP_LOGHOST = "loghost";
const std::string EventLogChannel::PROP_LOGFILE = "logfile";
EventLogChannel::EventLogChannel():
_logFile("Application"),
_h(0)
{
const DWORD maxPathLen = MAX_PATH + 1;
#if defined(POCO_WIN32_UTF8)
wchar_t name[maxPathLen];
int n = GetModuleFileNameW(NULL, name, maxPathLen);
if (n > 0)
{
wchar_t* end = name + n - 1;
while (end > name && *end != '\\') --end;
if (*end == '\\') ++end;
std::wstring uname(end);
UnicodeConverter::toUTF8(uname, _name);
}
#else
char name[maxPathLen];
int n = GetModuleFileNameA(NULL, name, maxPathLen);
if (n > 0)
{
char* end = name + n - 1;
while (end > name && *end != '\\') --end;
if (*end == '\\') ++end;
_name = end;
}
#endif
}
EventLogChannel::EventLogChannel(const std::string& name):
_name(name),
_logFile("Application"),
_h(0)
{
}
EventLogChannel::EventLogChannel(const std::string& name, const std::string& host):
_name(name),
_host(host),
_logFile("Application"),
_h(0)
{
}
EventLogChannel::~EventLogChannel()
{
try
{
close();
}
catch (...)
{
poco_unexpected();
}
}
void EventLogChannel::open()
{
setUpRegistry();
#if defined(POCO_WIN32_UTF8)
std::wstring uhost;
UnicodeConverter::toUTF16(_host, uhost);
std::wstring uname;
UnicodeConverter::toUTF16(_name, uname);
_h = RegisterEventSourceW(uhost.empty() ? NULL : uhost.c_str(), uname.c_str());
#else
_h = RegisterEventSource(_host.empty() ? NULL : _host.c_str(), _name.c_str());
#endif
if (!_h) throw SystemException("cannot register event source");
}
void EventLogChannel::close()
{
if (_h) DeregisterEventSource(_h);
_h = 0;
}
void EventLogChannel::log(const Message& msg)
{
if (!_h) open();
#if defined(POCO_WIN32_UTF8)
std::wstring utext;
UnicodeConverter::toUTF16(msg.getText(), utext);
const wchar_t* pMsg = utext.c_str();
ReportEventW(_h,
static_cast<WORD>(getType(msg)),
static_cast<WORD>(getCategory(msg)),
POCO_MSG_LOG,
NULL,
1,
0,
&pMsg,
NULL);
#else
const char* pMsg = msg.getText().c_str();
ReportEvent(_h, getType(msg), getCategory(msg), POCO_MSG_LOG, NULL, 1, 0, &pMsg, NULL);
#endif
}
void EventLogChannel::setProperty(const std::string& name, const std::string& value)
{
if (icompare(name, PROP_NAME) == 0)
_name = value;
else if (icompare(name, PROP_HOST) == 0)
_host = value;
else if (icompare(name, PROP_LOGHOST) == 0)
_host = value;
else if (icompare(name, PROP_LOGFILE) == 0)
_logFile = value;
else
Channel::setProperty(name, value);
}
std::string EventLogChannel::getProperty(const std::string& name) const
{
if (icompare(name, PROP_NAME) == 0)
return _name;
else if (icompare(name, PROP_HOST) == 0)
return _host;
else if (icompare(name, PROP_LOGHOST) == 0)
return _host;
else if (icompare(name, PROP_LOGFILE) == 0)
return _logFile;
else
return Channel::getProperty(name);
}
int EventLogChannel::getType(const Message& msg)
{
switch (msg.getPriority())
{
case Message::PRIO_TRACE:
case Message::PRIO_DEBUG:
case Message::PRIO_INFORMATION:
return EVENTLOG_INFORMATION_TYPE;
case Message::PRIO_NOTICE:
case Message::PRIO_WARNING:
return EVENTLOG_WARNING_TYPE;
default:
return EVENTLOG_ERROR_TYPE;
}
}
int EventLogChannel::getCategory(const Message& msg)
{
switch (msg.getPriority())
{
case Message::PRIO_TRACE:
return POCO_CTG_TRACE;
case Message::PRIO_DEBUG:
return POCO_CTG_DEBUG;
case Message::PRIO_INFORMATION:
return POCO_CTG_INFORMATION;
case Message::PRIO_NOTICE:
return POCO_CTG_NOTICE;
case Message::PRIO_WARNING:
return POCO_CTG_WARNING;
case Message::PRIO_ERROR:
return POCO_CTG_ERROR;
case Message::PRIO_CRITICAL:
return POCO_CTG_CRITICAL;
case Message::PRIO_FATAL:
return POCO_CTG_FATAL;
default:
return 0;
}
}
void EventLogChannel::setUpRegistry() const
{
std::string key = "SYSTEM\\CurrentControlSet\\Services\\EventLog\\";
key.append(_logFile);
key.append("\\");
key.append(_name);
HKEY hKey;
DWORD disp;
#if defined(POCO_WIN32_UTF8)
std::wstring ukey;
UnicodeConverter::toUTF16(key, ukey);
DWORD rc = RegCreateKeyExW(HKEY_LOCAL_MACHINE, ukey.c_str(), 0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hKey, &disp);
#else
DWORD rc = RegCreateKeyEx(HKEY_LOCAL_MACHINE, key.c_str(), 0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hKey, &disp);
#endif
if (rc != ERROR_SUCCESS) return;
if (disp == REG_CREATED_NEW_KEY)
{
#if defined(POCO_WIN32_UTF8)
std::wstring path;
#if defined(POCO_DLL)
#if defined(_DEBUG)
#if defined(_WIN64)
path = findLibrary(L"PocoFoundation64d.dll");
#else
path = findLibrary(L"PocoFoundationd.dll");
#endif
#else
#if defined(_WIN64)
path = findLibrary(L"PocoFoundation64.dll");
#else
path = findLibrary(L"PocoFoundation.dll");
#endif
#endif
#endif
if (path.empty())
path = findLibrary(L"PocoMsg.dll");
#else
std::string path;
#if defined(POCO_DLL)
#if defined(_DEBUG)
#if defined(_WIN64)
path = findLibrary("PocoFoundation64d.dll");
#else
path = findLibrary("PocoFoundationd.dll");
#endif
#else
#if defined(_WIN64)
path = findLibrary("PocoFoundation64.dll");
#else
path = findLibrary("PocoFoundation.dll");
#endif
#endif
#endif
if (path.empty())
path = findLibrary("PocoMsg.dll");
#endif
if (!path.empty())
{
DWORD count = 8;
DWORD types = 7;
#if defined(POCO_WIN32_UTF8)
RegSetValueExW(hKey, L"CategoryMessageFile", 0, REG_SZ, (const BYTE*) path.c_str(), static_cast<DWORD>(sizeof(wchar_t)*(path.size() + 1)));
RegSetValueExW(hKey, L"EventMessageFile", 0, REG_SZ, (const BYTE*) path.c_str(), static_cast<DWORD>(sizeof(wchar_t)*(path.size() + 1)));
RegSetValueExW(hKey, L"CategoryCount", 0, REG_DWORD, (const BYTE*) &count, static_cast<DWORD>(sizeof(count)));
RegSetValueExW(hKey, L"TypesSupported", 0, REG_DWORD, (const BYTE*) &types, static_cast<DWORD>(sizeof(types)));
#else
RegSetValueEx(hKey, "CategoryMessageFile", 0, REG_SZ, (const BYTE*) path.c_str(), static_cast<DWORD>(path.size() + 1));
RegSetValueEx(hKey, "EventMessageFile", 0, REG_SZ, (const BYTE*) path.c_str(), static_cast<DWORD>(path.size() + 1));
RegSetValueEx(hKey, "CategoryCount", 0, REG_DWORD, (const BYTE*) &count, static_cast<DWORD>(sizeof(count)));
RegSetValueEx(hKey, "TypesSupported", 0, REG_DWORD, (const BYTE*) &types, static_cast<DWORD>(sizeof(types)));
#endif
}
}
RegCloseKey(hKey);
}
#if defined(POCO_WIN32_UTF8)
std::wstring EventLogChannel::findLibrary(const wchar_t* name)
{
std::wstring path;
HMODULE dll = LoadLibraryW(name);
if (dll)
{
const DWORD maxPathLen = MAX_PATH + 1;
wchar_t moduleName[maxPathLen];
int n = GetModuleFileNameW(dll, moduleName, maxPathLen);
if (n > 0) path = moduleName;
FreeLibrary(dll);
}
return path;
}
#else
std::string EventLogChannel::findLibrary(const char* name)
{
std::string path;
HMODULE dll = LoadLibraryA(name);
if (dll)
{
const DWORD maxPathLen = MAX_PATH + 1;
char name[maxPathLen];
int n = GetModuleFileNameA(dll, name, maxPathLen);
if (n > 0) path = name;
FreeLibrary(dll);
}
return path;
}
#endif
} // namespace Poco
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