git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@32846 65c4cc65-6c06-0410-ace0-fbb531ad65f3
329 lines
9.9 KiB
C
329 lines
9.9 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2003 - 2006
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*
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* Matthew D. Hardeman <mhardemn@papersoft.com>
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* Adapted from the MySQL CDR logger originally by James Sharp
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*
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* Modified September 2003
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* Matthew D. Hardeman <mhardemn@papersoft.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief PostgreSQL CDR logger
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*
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* \author Matthew D. Hardeman <mhardemn@papersoft.com>
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*
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* See also
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* \arg \ref Config_cdr
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* \arg http://www.postgresql.org/
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* \ingroup cdr_drivers
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*/
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/*** MODULEINFO
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<depend>pgsql</depend>
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***/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <sys/types.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <time.h>
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#include <libpq-fe.h>
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#include "asterisk/config.h"
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#include "asterisk/options.h"
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#include "asterisk/channel.h"
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#include "asterisk/cdr.h"
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#include "asterisk/module.h"
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#include "asterisk/logger.h"
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#include "asterisk.h"
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#define DATE_FORMAT "%Y-%m-%d %T"
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static char *desc = "PostgreSQL CDR Backend";
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static char *name = "pgsql";
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static char *config = "cdr_pgsql.conf";
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static char *pghostname = NULL, *pgdbname = NULL, *pgdbuser = NULL, *pgpassword = NULL, *pgdbport = NULL, *table = NULL;
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static int connected = 0;
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AST_MUTEX_DEFINE_STATIC(pgsql_lock);
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static PGconn *conn;
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static PGresult *result;
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static int pgsql_log(struct ast_cdr *cdr)
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{
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struct tm tm;
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char sqlcmd[2048] = "", timestr[128];
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char *pgerror;
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ast_mutex_lock(&pgsql_lock);
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localtime_r(&cdr->start.tv_sec,&tm);
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strftime(timestr, sizeof(timestr), DATE_FORMAT, &tm);
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if ((!connected) && pghostname && pgdbuser && pgpassword && pgdbname) {
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conn = PQsetdbLogin(pghostname, pgdbport, NULL, NULL, pgdbname, pgdbuser, pgpassword);
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if (PQstatus(conn) != CONNECTION_BAD) {
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connected = 1;
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} else {
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pgerror = PQerrorMessage(conn);
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ast_log(LOG_ERROR, "cdr_pgsql: Unable to connect to database server %s. Calls will not be logged!\n", pghostname);
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ast_log(LOG_ERROR, "cdr_pgsql: Reason: %s\n", pgerror);
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}
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}
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if (connected) {
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char *clid=NULL, *dcontext=NULL, *channel=NULL, *dstchannel=NULL, *lastapp=NULL, *lastdata=NULL;
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char *uniqueid=NULL, *userfield=NULL;
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/* Maximum space needed would be if all characters needed to be escaped, plus a trailing NULL */
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if ((clid = alloca(strlen(cdr->clid) * 2 + 1)) != NULL)
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PQescapeString(clid, cdr->clid, strlen(cdr->clid));
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if ((dcontext = alloca(strlen(cdr->dcontext) * 2 + 1)) != NULL)
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PQescapeString(dcontext, cdr->dcontext, strlen(cdr->dcontext));
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if ((channel = alloca(strlen(cdr->channel) * 2 + 1)) != NULL)
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PQescapeString(channel, cdr->channel, strlen(cdr->channel));
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if ((dstchannel = alloca(strlen(cdr->dstchannel) * 2 + 1)) != NULL)
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PQescapeString(dstchannel, cdr->dstchannel, strlen(cdr->dstchannel));
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if ((lastapp = alloca(strlen(cdr->lastapp) * 2 + 1)) != NULL)
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PQescapeString(lastapp, cdr->lastapp, strlen(cdr->lastapp));
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if ((lastdata = alloca(strlen(cdr->lastdata) * 2 + 1)) != NULL)
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PQescapeString(lastdata, cdr->lastdata, strlen(cdr->lastdata));
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if ((uniqueid = alloca(strlen(cdr->uniqueid) * 2 + 1)) != NULL)
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PQescapeString(uniqueid, cdr->uniqueid, strlen(cdr->uniqueid));
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if ((userfield = alloca(strlen(cdr->userfield) * 2 + 1)) != NULL)
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PQescapeString(userfield, cdr->userfield, strlen(cdr->userfield));
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/* Check for all alloca failures above at once */
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if ((!clid) || (!dcontext) || (!channel) || (!dstchannel) || (!lastapp) || (!lastdata) || (!uniqueid) || (!userfield)) {
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ast_log(LOG_ERROR, "cdr_pgsql: Out of memory error (insert fails)\n");
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ast_mutex_unlock(&pgsql_lock);
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return -1;
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}
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if (option_debug > 1)
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ast_log(LOG_DEBUG, "cdr_pgsql: inserting a CDR record.\n");
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snprintf(sqlcmd,sizeof(sqlcmd),"INSERT INTO %s (calldate,clid,src,dst,dcontext,channel,dstchannel,"
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"lastapp,lastdata,duration,billsec,disposition,amaflags,accountcode,uniqueid,userfield) VALUES"
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" ('%s','%s','%s','%s','%s', '%s','%s','%s','%s',%ld,%ld,'%s',%ld,'%s','%s','%s')",
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table,timestr,clid,cdr->src, cdr->dst, dcontext,channel, dstchannel, lastapp, lastdata,
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cdr->duration,cdr->billsec,ast_cdr_disp2str(cdr->disposition),cdr->amaflags, cdr->accountcode, uniqueid, userfield);
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if (option_debug > 2)
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ast_log(LOG_DEBUG, "cdr_pgsql: SQL command executed: %s\n",sqlcmd);
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/* Test to be sure we're still connected... */
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/* If we're connected, and connection is working, good. */
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/* Otherwise, attempt reconnect. If it fails... sorry... */
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if (PQstatus(conn) == CONNECTION_OK) {
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connected = 1;
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} else {
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ast_log(LOG_ERROR, "cdr_pgsql: Connection was lost... attempting to reconnect.\n");
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PQreset(conn);
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if (PQstatus(conn) == CONNECTION_OK) {
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ast_log(LOG_ERROR, "cdr_pgsql: Connection reestablished.\n");
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connected = 1;
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} else {
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pgerror = PQerrorMessage(conn);
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ast_log(LOG_ERROR, "cdr_pgsql: Unable to reconnect to database server %s. Calls will not be logged!\n", pghostname);
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ast_log(LOG_ERROR, "cdr_pgsql: Reason: %s\n", pgerror);
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connected = 0;
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ast_mutex_unlock(&pgsql_lock);
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return -1;
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}
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}
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result = PQexec(conn, sqlcmd);
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if ( PQresultStatus(result) != PGRES_COMMAND_OK) {
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pgerror = PQresultErrorMessage(result);
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ast_log(LOG_ERROR,"cdr_pgsql: Failed to insert call detail record into database!\n");
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ast_log(LOG_ERROR,"cdr_pgsql: Reason: %s\n", pgerror);
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ast_log(LOG_ERROR,"cdr_pgsql: Connection may have been lost... attempting to reconnect.\n");
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PQreset(conn);
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if (PQstatus(conn) == CONNECTION_OK) {
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ast_log(LOG_ERROR, "cdr_pgsql: Connection reestablished.\n");
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connected = 1;
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result = PQexec(conn, sqlcmd);
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if ( PQresultStatus(result) != PGRES_COMMAND_OK)
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{
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pgerror = PQresultErrorMessage(result);
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ast_log(LOG_ERROR,"cdr_pgsql: HARD ERROR! Attempted reconnection failed. DROPPING CALL RECORD!\n");
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ast_log(LOG_ERROR,"cdr_pgsql: Reason: %s\n", pgerror);
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}
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}
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ast_mutex_unlock(&pgsql_lock);
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return -1;
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}
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}
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ast_mutex_unlock(&pgsql_lock);
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return 0;
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}
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static const char *description(void)
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{
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return desc;
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}
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static int my_unload_module(void)
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{
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if (conn)
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PQfinish(conn);
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if (pghostname)
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free(pghostname);
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if (pgdbname)
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free(pgdbname);
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if (pgdbuser)
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free(pgdbuser);
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if (pgpassword)
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free(pgpassword);
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if (pgdbport)
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free(pgdbport);
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if (table)
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free(table);
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ast_cdr_unregister(name);
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return 0;
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}
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static int process_my_load_module(struct ast_config *cfg)
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{
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struct ast_variable *var;
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char *pgerror;
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char *tmp;
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if (!(var = ast_variable_browse(cfg, "global")))
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return 0;
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if (!(tmp = ast_variable_retrieve(cfg,"global","hostname"))) {
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ast_log(LOG_WARNING,"PostgreSQL server hostname not specified. Assuming unix socket connection\n");
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tmp = ""; /* connect via UNIX-socket by default */
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}
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if (!(pghostname = ast_strdup(tmp)))
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return -1;
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if (!(tmp = ast_variable_retrieve(cfg, "global", "dbname"))) {
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ast_log(LOG_WARNING,"PostgreSQL database not specified. Assuming asterisk\n");
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tmp = "asteriskcdrdb";
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}
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if (!(pgdbname = ast_strdup(tmp)))
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return -1;
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if (!(tmp = ast_variable_retrieve(cfg, "global", "user"))) {
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ast_log(LOG_WARNING,"PostgreSQL database user not specified. Assuming asterisk\n");
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tmp = "asterisk";
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}
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if (!(pgdbuser = ast_strdup(tmp)))
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return -1;
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if (!(tmp = ast_variable_retrieve(cfg, "global", "password"))) {
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ast_log(LOG_WARNING,"PostgreSQL database password not specified. Assuming blank\n");
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tmp = "";
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}
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if (!(pgpassword = ast_strdup(tmp)))
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return -1;
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if (!(tmp = ast_variable_retrieve(cfg,"global","port"))) {
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ast_log(LOG_WARNING,"PostgreSQL database port not specified. Using default 5432.\n");
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tmp = "5432";
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}
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if (!(pgdbport = ast_strdup(tmp)))
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return -1;
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if (!(tmp = ast_variable_retrieve(cfg, "global", "table"))) {
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ast_log(LOG_WARNING,"CDR table not specified. Assuming cdr\n");
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tmp = "cdr";
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}
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if (!(table = ast_strdup(tmp)))
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return -1;
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if (option_debug) {
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if (ast_strlen_zero(pghostname))
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ast_log(LOG_DEBUG, "cdr_pgsql: using default unix socket\n");
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else
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ast_log(LOG_DEBUG, "cdr_pgsql: got hostname of %s\n", pghostname);
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ast_log(LOG_DEBUG, "cdr_pgsql: got port of %s\n", pgdbport);
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ast_log(LOG_DEBUG, "cdr_pgsql: got user of %s\n", pgdbuser);
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ast_log(LOG_DEBUG, "cdr_pgsql: got dbname of %s\n", pgdbname);
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ast_log(LOG_DEBUG, "cdr_pgsql: got password of %s\n", pgpassword);
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ast_log(LOG_DEBUG, "cdr_pgsql: got sql table name of %s\n", table);
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}
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conn = PQsetdbLogin(pghostname, pgdbport, NULL, NULL, pgdbname, pgdbuser, pgpassword);
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if (PQstatus(conn) != CONNECTION_BAD) {
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if (option_debug)
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ast_log(LOG_DEBUG, "Successfully connected to PostgreSQL database.\n");
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connected = 1;
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} else {
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pgerror = PQerrorMessage(conn);
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ast_log(LOG_ERROR, "cdr_pgsql: Unable to connect to database server %s. CALLS WILL NOT BE LOGGED!!\n", pghostname);
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ast_log(LOG_ERROR, "cdr_pgsql: Reason: %s\n", pgerror);
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connected = 0;
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}
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return ast_cdr_register(name, desc, pgsql_log);
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}
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static int my_load_module(void)
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{
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struct ast_config *cfg;
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int res;
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if (!(cfg = ast_config_load(config))) {
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ast_log(LOG_WARNING, "Unable to load config for PostgreSQL CDR's: %s\n", config);
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return 0;
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}
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res = process_my_load_module(cfg);
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ast_config_destroy(cfg);
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return res;
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}
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static int load_module(void *mod)
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{
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return my_load_module();
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}
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static int unload_module(void *mod)
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{
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return my_unload_module();
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}
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static int reload(void *mod)
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{
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my_unload_module();
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return my_load_module();
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}
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static const char *key(void)
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{
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return ASTERISK_GPL_KEY;
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}
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STD_MOD(MOD_0, reload, NULL, NULL);
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