870 lines
15 KiB
C
870 lines
15 KiB
C
/**
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* WinPR: Windows Portable Runtime
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* WinPR Logger
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*
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* Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <winpr/crt.h>
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#include <winpr/print.h>
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#include <winpr/debug.h>
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#include <winpr/environment.h>
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#if defined(ANDROID)
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#include <android/log.h>
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#include "../log.h"
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#endif
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#include "wlog.h"
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struct _wLogFilter
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{
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DWORD Level;
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LPSTR* Names;
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DWORD NameCount;
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};
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typedef struct _wLogFilter wLogFilter;
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/**
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* References for general logging concepts:
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*
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* Short introduction to log4j:
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* http://logging.apache.org/log4j/1.2/manual.html
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*
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* logging - Logging facility for Python:
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* http://docs.python.org/2/library/logging.html
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*/
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LPCSTR WLOG_LEVELS[7] =
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{
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"TRACE",
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"DEBUG",
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"INFO",
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"WARN",
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"ERROR",
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"FATAL",
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"OFF"
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};
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static DWORD g_FilterCount = 0;
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static wLogFilter* g_Filters = NULL;
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static int WLog_ParseLogLevel(LPCSTR level);
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static BOOL WLog_ParseFilter(wLogFilter* filter, LPCSTR name);
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static BOOL log_recursion(LPCSTR file, LPCSTR fkt, int line)
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{
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char** msg;
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size_t used, i;
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void* bt = winpr_backtrace(20);
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#if defined(ANDROID)
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LPCSTR tag = WINPR_TAG("utils.wlog");
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#endif
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if (!bt)
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return FALSE;
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msg = winpr_backtrace_symbols(bt, &used);
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if (!msg)
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return FALSE;
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#if defined(ANDROID)
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if (__android_log_print(ANDROID_LOG_FATAL, tag, "Recursion detected!!!") < 0)
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return FALSE;
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if (__android_log_print(ANDROID_LOG_FATAL, tag, "Check %s [%s:%d]", fkt, file, line) < 0)
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return FALSE;
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for (i=0; i<used; i++)
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if (__android_log_print(ANDROID_LOG_FATAL, tag, "%d: %s", i, msg[i]) < 0)
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return FALSE;
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#else
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if (fprintf(stderr, "[%s]: Recursion detected!\n", fkt) < 0)
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return FALSE;
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if (fprintf(stderr, "[%s]: Check %s:%d\n", fkt, file, line) < 0)
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return FALSE;
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for (i=0; i<used; i++)
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if (fprintf(stderr, "%s: %zd: %s\n", fkt, i, msg[i]) < 0)
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return FALSE;
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#endif
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free(msg);
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winpr_backtrace_free(bt);
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return TRUE;
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}
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BOOL WLog_Write(wLog* log, wLogMessage* message)
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{
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BOOL status;
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wLogAppender* appender;
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appender = WLog_GetLogAppender(log);
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if (!appender)
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return FALSE;
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if (!appender->active)
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if (!WLog_OpenAppender(log))
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return FALSE;
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if (!appender->WriteMessage)
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return FALSE;
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EnterCriticalSection(&appender->lock);
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if (appender->recursive)
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status = log_recursion(message->FileName, message->FunctionName, message->LineNumber);
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else
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{
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appender->recursive = TRUE;
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status = appender->WriteMessage(log, appender, message);
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appender->recursive = FALSE;
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}
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LeaveCriticalSection(&appender->lock);
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return status;
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}
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BOOL WLog_WriteData(wLog* log, wLogMessage* message)
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{
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BOOL status;
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wLogAppender* appender;
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appender = WLog_GetLogAppender(log);
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if (!appender)
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return FALSE;
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if (!appender->active)
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if (!WLog_OpenAppender(log))
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return FALSE;
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if (!appender->WriteDataMessage)
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return FALSE;
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EnterCriticalSection(&appender->lock);
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if (appender->recursive)
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status = log_recursion(message->FileName, message->FunctionName, message->LineNumber);
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else
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{
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appender->recursive = TRUE;
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status = appender->WriteDataMessage(log, appender, message);
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appender->recursive = FALSE;
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}
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LeaveCriticalSection(&appender->lock);
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return status;
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}
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BOOL WLog_WriteImage(wLog* log, wLogMessage* message)
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{
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BOOL status;
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wLogAppender* appender;
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appender = WLog_GetLogAppender(log);
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if (!appender)
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return FALSE;
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if (!appender->active)
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if (!WLog_OpenAppender(log))
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return FALSE;
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if (!appender->WriteImageMessage)
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return FALSE;
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EnterCriticalSection(&appender->lock);
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if (appender->recursive)
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status = log_recursion(message->FileName, message->FunctionName, message->LineNumber);
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else
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{
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appender->recursive = TRUE;
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status = appender->WriteImageMessage(log, appender, message);
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appender->recursive = FALSE;
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}
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LeaveCriticalSection(&appender->lock);
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return status;
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}
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BOOL WLog_WritePacket(wLog* log, wLogMessage* message)
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{
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BOOL status;
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wLogAppender* appender;
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appender = WLog_GetLogAppender(log);
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if (!appender)
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return FALSE;
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if (!appender->active)
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if (!WLog_OpenAppender(log))
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return FALSE;
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if (!appender->WritePacketMessage)
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return FALSE;
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EnterCriticalSection(&appender->lock);
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if (appender->recursive)
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status = log_recursion(message->FileName, message->FunctionName, message->LineNumber);
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else
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{
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appender->recursive = TRUE;
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status = appender->WritePacketMessage(log, appender, message);
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appender->recursive = FALSE;
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}
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LeaveCriticalSection(&appender->lock);
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return status;
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}
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BOOL WLog_PrintMessageVA(wLog* log, wLogMessage* message, va_list args)
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{
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BOOL status = FALSE;
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if (message->Type == WLOG_MESSAGE_TEXT)
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{
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if (!strchr(message->FormatString, '%'))
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{
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message->TextString = (LPSTR) message->FormatString;
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status = WLog_Write(log, message);
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}
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else
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{
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char formattedLogMessage[WLOG_MAX_STRING_SIZE];
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if (wvsnprintfx(formattedLogMessage, WLOG_MAX_STRING_SIZE - 1, message->FormatString, args) < 0)
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return FALSE;
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message->TextString = formattedLogMessage;
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status = WLog_Write(log, message);
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}
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}
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else if (message->Type == WLOG_MESSAGE_DATA)
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{
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message->Data = va_arg(args, void*);
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message->Length = va_arg(args, int);
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status = WLog_WriteData(log, message);
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}
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else if (message->Type == WLOG_MESSAGE_IMAGE)
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{
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message->ImageData = va_arg(args, void*);
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message->ImageWidth = va_arg(args, int);
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message->ImageHeight = va_arg(args, int);
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message->ImageBpp = va_arg(args, int);
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status = WLog_WriteImage(log, message);
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}
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else if (message->Type == WLOG_MESSAGE_PACKET)
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{
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message->PacketData = va_arg(args, void*);
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message->PacketLength = va_arg(args, int);
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message->PacketFlags = va_arg(args, int);
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status = WLog_WritePacket(log, message);
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}
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return status;
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}
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BOOL WLog_PrintMessage(wLog* log, wLogMessage* message, ...)
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{
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BOOL status;
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va_list args;
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va_start(args, message);
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status = WLog_PrintMessageVA(log, message, args);
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va_end(args);
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return status;
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}
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DWORD WLog_GetLogLevel(wLog* log)
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{
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if (log->Level == WLOG_LEVEL_INHERIT)
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{
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return WLog_GetLogLevel(log->Parent);
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}
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else
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{
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return log->Level;
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}
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}
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BOOL WLog_SetStringLogLevel(wLog* log, LPCSTR level)
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{
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int lvl;
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if (!log || !level)
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return FALSE;
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lvl = WLog_ParseLogLevel(level);
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if (lvl < 0)
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return FALSE;
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return WLog_SetLogLevel(log, lvl);
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}
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BOOL WLog_AddStringLogFilters(LPCSTR filter)
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{
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DWORD pos;
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DWORD size;
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DWORD count;
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LPSTR p;
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LPSTR filterStr;
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LPSTR cp;
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wLogFilter* tmp;
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if (!filter)
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return FALSE;
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count = 1;
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p = (LPSTR)filter;
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while ((p = strchr(p, ',')) != NULL)
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{
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count++;
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p++;
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}
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pos = g_FilterCount;
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size = g_FilterCount + count;
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tmp = (wLogFilter*) realloc(g_Filters, size * sizeof(wLogFilter));
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if (!tmp)
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return FALSE;
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g_Filters = tmp;
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cp = (LPSTR)_strdup(filter);
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if (!cp)
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return FALSE;
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p = cp;
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filterStr = cp;
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do
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{
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p = strchr(p, ',');
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if (p)
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*p = '\0';
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if (pos < size)
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{
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if (!WLog_ParseFilter(&g_Filters[pos++], filterStr))
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{
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free (cp);
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return FALSE;
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}
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}
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else
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break;
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if (p)
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{
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filterStr = p + 1;
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p++;
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}
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}
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while (p != NULL);
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g_FilterCount = size;
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free (cp);
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return TRUE;
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}
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BOOL WLog_SetLogLevel(wLog* log, DWORD logLevel)
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{
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if (!log)
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return FALSE;
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if ((logLevel > WLOG_OFF) && (logLevel != WLOG_LEVEL_INHERIT))
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{
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logLevel = WLOG_OFF;
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}
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log->Level = logLevel;
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return TRUE;
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}
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int WLog_ParseLogLevel(LPCSTR level)
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{
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int iLevel = -1;
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if (!level)
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return -1;
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if (_stricmp(level, "TRACE") == 0)
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iLevel = WLOG_TRACE;
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else if (_stricmp(level, "DEBUG") == 0)
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iLevel = WLOG_DEBUG;
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else if (_stricmp(level, "INFO") == 0)
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iLevel = WLOG_INFO;
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else if (_stricmp(level, "WARN") == 0)
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iLevel = WLOG_WARN;
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else if (_stricmp(level, "ERROR") == 0)
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iLevel = WLOG_ERROR;
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else if (_stricmp(level, "FATAL") == 0)
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iLevel = WLOG_FATAL;
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else if (_stricmp(level, "OFF") == 0)
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iLevel = WLOG_OFF;
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return iLevel;
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}
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BOOL WLog_ParseFilter(wLogFilter* filter, LPCSTR name)
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{
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char* p;
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char* q;
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int count;
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LPSTR names;
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int iLevel;
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count = 1;
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if(!name)
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return FALSE;
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p = (char*) name;
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if (p)
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{
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while ((p = strchr(p, '.')) != NULL)
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{
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count++;
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p++;
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}
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}
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names = _strdup(name);
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if (!names)
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return FALSE;
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filter->NameCount = count;
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filter->Names = (LPSTR*) calloc((count + 1UL), sizeof(LPSTR));
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if(!filter->Names)
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{
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free(names);
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filter->NameCount = 0;
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return FALSE;
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}
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filter->Names[count] = NULL;
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count = 0;
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p = (char*) names;
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filter->Names[count++] = p;
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q = strrchr(p, ':');
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if (!q)
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{
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free(names);
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free(filter->Names);
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filter->Names = NULL;
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filter->NameCount = 0;
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return FALSE;
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}
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*q = '\0';
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q++;
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iLevel = WLog_ParseLogLevel(q);
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if (iLevel < 0)
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{
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free(names);
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free(filter->Names);
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filter->Names = NULL;
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filter->NameCount = 0;
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return FALSE;
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}
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filter->Level = (DWORD) iLevel;
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while ((p = strchr(p, '.')) != NULL)
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{
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if (count < filter->NameCount)
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filter->Names[count++] = p + 1;
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*p = '\0';
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p++;
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}
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return TRUE;
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}
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BOOL WLog_ParseFilters()
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{
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BOOL res;
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char* env;
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DWORD nSize;
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g_Filters = NULL;
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g_FilterCount = 0;
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nSize = GetEnvironmentVariableA("WLOG_FILTER", NULL, 0);
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if (nSize < 1)
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return TRUE;
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env = (LPSTR) malloc(nSize);
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if (!env)
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return FALSE;
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if (!GetEnvironmentVariableA("WLOG_FILTER", env, nSize))
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return FALSE;
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res = WLog_AddStringLogFilters(env);
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free(env);
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return res;
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}
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int WLog_GetFilterLogLevel(wLog* log)
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{
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DWORD i, j;
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int iLevel = -1;
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BOOL match = FALSE;
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for (i = 0; i < g_FilterCount; i++)
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{
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for (j = 0; j < g_Filters[i].NameCount; j++)
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{
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if (j >= log->NameCount)
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break;
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if (_stricmp(g_Filters[i].Names[j], "*") == 0)
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{
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match = TRUE;
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break;
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}
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if (_stricmp(g_Filters[i].Names[j], log->Names[j]) != 0)
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break;
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if (j == (log->NameCount - 1))
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{
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match = TRUE;
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break;
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}
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}
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if (match)
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break;
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}
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if (match)
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{
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iLevel = (int) g_Filters[i].Level;
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}
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return iLevel;
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}
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BOOL WLog_ParseName(wLog* log, LPCSTR name)
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{
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char* p;
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int count;
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LPSTR names;
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count = 1;
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p = (char*) name;
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while ((p = strchr(p, '.')) != NULL)
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{
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count++;
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p++;
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}
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names = _strdup(name);
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if (!names)
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return FALSE;
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log->NameCount = count;
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log->Names = (LPSTR*) calloc((count + 1UL), sizeof(LPSTR));
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if(!log->Names)
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{
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free(names);
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return FALSE;
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}
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log->Names[count] = NULL;
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count = 0;
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p = (char*) names;
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log->Names[count++] = p;
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while ((p = strchr(p, '.')) != NULL)
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{
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if (count < log->NameCount)
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log->Names[count++] = p + 1;
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*p = '\0';
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p++;
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}
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return TRUE;
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}
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wLog* WLog_New(LPCSTR name, wLog* rootLogger)
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{
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wLog* log = NULL;
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char* env = NULL;
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|
DWORD nSize;
|
|
int iLevel;
|
|
|
|
log = (wLog*) calloc(1, sizeof(wLog));
|
|
if (!log)
|
|
return NULL;
|
|
|
|
log->Name = _strdup(name);
|
|
|
|
if (!log->Name)
|
|
goto out_fail;
|
|
|
|
if (!WLog_ParseName(log, name))
|
|
goto out_fail;
|
|
|
|
log->Parent = rootLogger;
|
|
log->ChildrenCount = 0;
|
|
log->ChildrenSize = 16;
|
|
|
|
if (!(log->Children = (wLog**) calloc(log->ChildrenSize, sizeof(wLog*))))
|
|
goto out_fail;
|
|
|
|
log->Appender = NULL;
|
|
|
|
if (rootLogger)
|
|
{
|
|
log->Level = WLOG_LEVEL_INHERIT;
|
|
}
|
|
else
|
|
{
|
|
log->Level = WLOG_INFO;
|
|
nSize = GetEnvironmentVariableA("WLOG_LEVEL", NULL, 0);
|
|
|
|
if (nSize)
|
|
{
|
|
env = (LPSTR) malloc(nSize);
|
|
if (!env)
|
|
goto out_fail;
|
|
|
|
if (!GetEnvironmentVariableA("WLOG_LEVEL", env, nSize))
|
|
{
|
|
fprintf(stderr, "WLOG_LEVEL environment variable changed in my back !\n");
|
|
free(env);
|
|
goto out_fail;
|
|
}
|
|
|
|
iLevel = WLog_ParseLogLevel(env);
|
|
free(env);
|
|
|
|
if (iLevel >= 0)
|
|
log->Level = (DWORD) iLevel;
|
|
}
|
|
}
|
|
|
|
iLevel = WLog_GetFilterLogLevel(log);
|
|
|
|
if (iLevel >= 0)
|
|
log->Level = (DWORD) iLevel;
|
|
|
|
return log;
|
|
|
|
out_fail:
|
|
free (log->Children);
|
|
free (log->Name);
|
|
free (log);
|
|
return NULL;
|
|
}
|
|
|
|
void WLog_Free(wLog* log)
|
|
{
|
|
if (log)
|
|
{
|
|
if (log->Appender)
|
|
{
|
|
WLog_Appender_Free(log, log->Appender);
|
|
log->Appender = NULL;
|
|
}
|
|
|
|
free(log->Name);
|
|
free(log->Names[0]);
|
|
free(log->Names);
|
|
free(log->Children);
|
|
free(log);
|
|
}
|
|
}
|
|
|
|
static wLog* g_RootLog = NULL;
|
|
|
|
wLog* WLog_GetRoot()
|
|
{
|
|
char* env;
|
|
DWORD nSize;
|
|
DWORD logAppenderType;
|
|
|
|
if (!g_RootLog)
|
|
{
|
|
if (!(g_RootLog = WLog_New("", NULL)))
|
|
return NULL;
|
|
|
|
g_RootLog->IsRoot = TRUE;
|
|
WLog_ParseFilters();
|
|
logAppenderType = WLOG_APPENDER_CONSOLE;
|
|
nSize = GetEnvironmentVariableA("WLOG_APPENDER", NULL, 0);
|
|
|
|
if (nSize)
|
|
{
|
|
env = (LPSTR) malloc(nSize);
|
|
if (!env)
|
|
goto fail;
|
|
|
|
if (!GetEnvironmentVariableA("WLOG_APPENDER", env, nSize))
|
|
{
|
|
fprintf(stderr, "WLOG_APPENDER environment variable modified in my back");
|
|
free(env);
|
|
goto fail;
|
|
}
|
|
|
|
if (_stricmp(env, "CONSOLE") == 0)
|
|
logAppenderType = WLOG_APPENDER_CONSOLE;
|
|
else if (_stricmp(env, "FILE") == 0)
|
|
logAppenderType = WLOG_APPENDER_FILE;
|
|
else if (_stricmp(env, "BINARY") == 0)
|
|
logAppenderType = WLOG_APPENDER_BINARY;
|
|
#ifdef HAVE_SYSLOG_H
|
|
else if (_stricmp(env, "SYSLOG") == 0)
|
|
logAppenderType = WLOG_APPENDER_SYSLOG;
|
|
#endif /* HAVE_SYSLOG_H */
|
|
#ifdef HAVE_JOURNALD_H
|
|
else if (_stricmp(env, "JOURNALD") == 0)
|
|
logAppenderType = WLOG_APPENDER_JOURNALD;
|
|
#endif
|
|
else if (_stricmp(env, "UDP") == 0)
|
|
logAppenderType = WLOG_APPENDER_UDP;
|
|
|
|
free(env);
|
|
}
|
|
|
|
if (!WLog_SetLogAppenderType(g_RootLog, logAppenderType))
|
|
goto fail;
|
|
}
|
|
|
|
return g_RootLog;
|
|
|
|
fail:
|
|
free(g_RootLog);
|
|
g_RootLog = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
BOOL WLog_AddChild(wLog* parent, wLog* child)
|
|
{
|
|
if (parent->ChildrenCount >= parent->ChildrenSize)
|
|
{
|
|
wLog **tmp;
|
|
parent->ChildrenSize *= 2;
|
|
if (!parent->ChildrenSize)
|
|
{
|
|
if (parent->Children)
|
|
free (parent->Children);
|
|
parent->Children = NULL;
|
|
|
|
}
|
|
else
|
|
{
|
|
tmp = (wLog**) realloc(parent->Children, sizeof(wLog*) * parent->ChildrenSize);
|
|
if (!tmp)
|
|
{
|
|
if (parent->Children)
|
|
free (parent->Children);
|
|
parent->Children = NULL;
|
|
return FALSE;
|
|
}
|
|
parent->Children = tmp;
|
|
}
|
|
}
|
|
|
|
if (!parent->Children)
|
|
return FALSE;
|
|
|
|
parent->Children[parent->ChildrenCount++] = child;
|
|
child->Parent = parent;
|
|
return TRUE;
|
|
}
|
|
|
|
wLog* WLog_FindChild(LPCSTR name)
|
|
{
|
|
DWORD index;
|
|
wLog* root;
|
|
wLog* child = NULL;
|
|
BOOL found = FALSE;
|
|
root = WLog_GetRoot();
|
|
|
|
if (!root)
|
|
return NULL;
|
|
|
|
for (index = 0; index < root->ChildrenCount; index++)
|
|
{
|
|
child = root->Children[index];
|
|
|
|
if (strcmp(child->Name, name) == 0)
|
|
{
|
|
found = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return (found) ? child : NULL;
|
|
}
|
|
|
|
wLog* WLog_Get(LPCSTR name)
|
|
{
|
|
wLog* log;
|
|
if (!(log = WLog_FindChild(name)))
|
|
{
|
|
wLog* root = WLog_GetRoot();
|
|
if (!root)
|
|
return NULL;
|
|
if (!(log = WLog_New(name, root)))
|
|
return NULL;
|
|
if (!WLog_AddChild(root, log))
|
|
{
|
|
WLog_Free(log);
|
|
return NULL;
|
|
}
|
|
}
|
|
return log;
|
|
}
|
|
|
|
BOOL WLog_Init()
|
|
{
|
|
return WLog_GetRoot() != NULL;
|
|
}
|
|
|
|
BOOL WLog_Uninit()
|
|
{
|
|
DWORD index;
|
|
wLog* child = NULL;
|
|
wLog* root = g_RootLog;
|
|
|
|
if (!root)
|
|
return FALSE;
|
|
|
|
for (index = 0; index < root->ChildrenCount; index++)
|
|
{
|
|
child = root->Children[index];
|
|
WLog_Free(child);
|
|
}
|
|
|
|
WLog_Free(root);
|
|
g_RootLog = NULL;
|
|
return TRUE;
|
|
}
|