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/* ommongodb.c
* Output module for mongodb.
* Note: this module uses the libmongo-client library. The original 10gen
* mongodb C interface is crap. Obtain the library here:
* https://github.com/algernon/libmongo-client
*
* Copyright 2007-2012 Rainer Gerhards and Adiscon GmbH.
*
* This file is part of rsyslog.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* -or-
* see COPYING.ASL20 in the source distribution
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <assert.h>
#include <signal.h>
#include <time.h>
#include <mongo.h>
#include "rsyslog.h"
#include "conf.h"
#include "syslogd-types.h"
#include "srUtils.h"
#include "template.h"
#include "module-template.h"
#include "errmsg.h"
#include "cfsysline.h"
#define countof(X) ( (size_t) ( sizeof(X)/sizeof*(X) ) )
#define DEFAULT_SERVER "127.0.0.1"
#define DEFAULT_DATABASE "syslog"
#define DEFAULT_COLLECTION "log"
#define DEFAULT_DB_COLLECTION "syslog.log"
//i just defined some constants, i couldt not find the limit
#define MONGO_DB_NAME_SIZE 128
#define MONGO_COLLECTION_NAME_SIZE 128
MODULE_TYPE_OUTPUT
MODULE_TYPE_NOKEEP
MODULE_CNFNAME("ommongodb")
/* internal structures
*/
DEF_OMOD_STATIC_DATA
DEFobjCurrIf(errmsg)
typedef struct _instanceData {
mongo_sync_connection *conn;
// OLD:
#if 0
mongo_connection_options opts[1];
mongo_conn_return status;
#endif
char db[MONGO_DB_NAME_SIZE];
char collection[MONGO_COLLECTION_NAME_SIZE];
char dbcollection[MONGO_DB_NAME_SIZE + MONGO_COLLECTION_NAME_SIZE + 1];
unsigned uLastMongoDBErrno;
unsigned iSrvPort; /* sample: server port */
} instanceData;
char db[_DB_MAXDBLEN+2];
static int iSrvPort = 27017;
BEGINcreateInstance
CODESTARTcreateInstance
ENDcreateInstance
BEGINisCompatibleWithFeature
CODESTARTisCompatibleWithFeature
/* use this to specify if select features are supported by this
* plugin. If not, the framework will handle that. Currently, only
* RepeatedMsgReduction ("last message repeated n times") is optional.
*/
if(eFeat == sFEATURERepeatedMsgReduction)
iRet = RS_RET_OK;
ENDisCompatibleWithFeature
static void closeMongoDB(instanceData *pData)
{
ASSERT(pData != NULL);
if(pData->conn != NULL) {
mongo_sync_disconnect(pData->conn);
pData->conn = NULL;
}
}
BEGINfreeInstance
CODESTARTfreeInstance
closeMongoDB(pData);
ENDfreeInstance
BEGINdbgPrintInstInfo
CODESTARTdbgPrintInstInfo
/* nothing special here */
ENDdbgPrintInstInfo
/* The following function is responsible for initializing a
* MySQL connection.
* Initially added 2004-10-28 mmeckelein
*/
static rsRetVal initMongoDB(instanceData *pData, int bSilent)
{
DEFiRet;
ASSERT(pData != NULL);
ASSERT(pData->conn == NULL);
//I'm trying to fallback to a default here
#if 0
if(pData->opts->port == 0)
pData->opts->port = 27017;
if(pData->opts->host == 0x00)
strcpy(pData->opts->host,DEFAULT_SERVER);
#endif
if(pData->dbcollection == 0x00)
strcpy(pData->dbcollection,DEFAULT_DB_COLLECTION);
pData->conn = mongo_sync_connect("127.0.0.1", pData->iSrvPort, TRUE);
if(pData->conn == NULL) {
errmsg.LogError(0, RS_RET_SUSPENDED, "can not initialize MongoDB handle");
ABORT_FINALIZE(RS_RET_SUSPENDED);
}
finalize_it:
RETiRet;
}
//we must implement it
rsRetVal writeMongoDB(uchar *psz, instanceData *pData)
{
bson *doc;
char **szParams;
DEFiRet;
/* see if we are ready to proceed */
if(pData->conn == NULL) {
CHKiRet(initMongoDB(pData, 0));
}
szParams = (char**)(void*) psz;
doc = bson_build(BSON_TYPE_STRING, "msg", szParams[0], -1,
BSON_TYPE_STRING, "facility", szParams[1], -1,
BSON_TYPE_STRING, "hostname", szParams[2], -1,
BSON_TYPE_STRING, "priority", szParams[3], -1,
BSON_TYPE_NONE);
if(doc == NULL) {
dbgprintf("ommongodb: error creating BSON doc\n");
ABORT_FINALIZE(RS_RET_ERR);
}
bson_finish(doc);
if(!mongo_sync_cmd_insert(pData->conn, "syslog.doc", doc, NULL)) {
perror ("mongo_sync_cmd_insert()");
dbgprintf("ommongodb: insert error\n");
ABORT_FINALIZE(RS_RET_ERR);
}
bson_free(doc);
finalize_it:
if(iRet == RS_RET_OK) {
pData->uLastMongoDBErrno = 0; /* reset error for error supression */
}
RETiRet;
}
BEGINtryResume
CODESTARTtryResume
if(pData->conn == NULL) {
iRet = initMongoDB(pData, 1);
}
ENDtryResume
BEGINdoAction
CODESTARTdoAction
iRet = writeMongoDB(ppString[0], pData);
ENDdoAction
BEGINparseSelectorAct
//int iMongoDBPropErr = 0;
CODESTARTparseSelectorAct
CODE_STD_STRING_REQUESTparseSelectorAct(1)
if(!strncmp((char*) p, ":ommongodb:", sizeof(":ommongodb:") - 1)) {
p += sizeof(":ommongodb:") - 1; /* eat indicator sequence (-1 because of '\0'!) */
} else {
ABORT_FINALIZE(RS_RET_CONFLINE_UNPROCESSED);
}
CHKiRet(createInstance(&pData));
#if 0
if(getSubString(&p, pData->opts->host, MAXHOSTNAMELEN+1, ','))
strcpy(pData->opts->host,DEFAULT_SERVER);
#endif
//we must define the max db name
if(getSubString(&p,pData->db,255,','))
strcpy(pData->db,DEFAULT_DATABASE);
if(getSubString(&p,pData->collection,255,';'))
strcpy(pData->collection,DEFAULT_COLLECTION);
if(*(p-1) == ';')
--p;
CHKiRet(cflineParseTemplateName(&p, *ppOMSR, 0, OMSR_TPL_AS_ARRAY, (uchar*) " StdMongoDBFmt"));
pData->iSrvPort = iSrvPort; /* set configured port */
sprintf(pData->dbcollection,"%s.%s",pData->db,pData->collection);
CHKiRet(initMongoDB(pData, 0));
CODE_STD_FINALIZERparseSelectorAct
ENDparseSelectorAct
BEGINmodExit
CODESTARTmodExit
ENDmodExit
BEGINqueryEtryPt
CODESTARTqueryEtryPt
CODEqueryEtryPt_STD_OMOD_QUERIES
ENDqueryEtryPt
BEGINmodInit()
CODESTARTmodInit
*ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */
CODEmodInit_QueryRegCFSLineHdlr
CHKiRet(objUse(errmsg, CORE_COMPONENT));
INITChkCoreFeature(bCoreSupportsBatching, CORE_FEATURE_BATCHING);
DBGPRINTF("ommongodb: module compiled with rsyslog version %s.\n", VERSION);
//DBGPRINTF("ommongodb: %susing transactional output interface.\n", bCoreSupportsBatching ? "" : "not ");
ENDmodInit
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