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-rw-r--r--trunk/cdr/cdr_pgsql.c335
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diff --git a/trunk/cdr/cdr_pgsql.c b/trunk/cdr/cdr_pgsql.c
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+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2003 - 2006
+ *
+ * Matthew D. Hardeman <mhardemn@papersoft.com>
+ * Adapted from the MySQL CDR logger originally by James Sharp
+ *
+ * Modified September 2003
+ * Matthew D. Hardeman <mhardemn@papersoft.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ *
+ * \brief PostgreSQL CDR logger
+ *
+ * \author Matthew D. Hardeman <mhardemn@papersoft.com>
+ * \extref PostgreSQL http://www.postgresql.org/
+ *
+ * See also
+ * \arg \ref Config_cdr
+ * \arg http://www.postgresql.org/
+ * \ingroup cdr_drivers
+ */
+
+/*** MODULEINFO
+ <depend>pgsql</depend>
+ ***/
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+
+#include <time.h>
+
+#include <libpq-fe.h>
+
+#include "asterisk/config.h"
+#include "asterisk/channel.h"
+#include "asterisk/cdr.h"
+#include "asterisk/module.h"
+
+#define DATE_FORMAT "%Y-%m-%d %T"
+
+static char *name = "pgsql";
+static char *config = "cdr_pgsql.conf";
+static char *pghostname = NULL, *pgdbname = NULL, *pgdbuser = NULL, *pgpassword = NULL, *pgdbport = NULL, *table = NULL;
+static int connected = 0;
+
+AST_MUTEX_DEFINE_STATIC(pgsql_lock);
+
+static PGconn *conn = NULL;
+
+static int pgsql_log(struct ast_cdr *cdr)
+{
+ struct ast_tm tm;
+ char sqlcmd[2048] = "", timestr[128];
+ char *pgerror;
+ PGresult *result;
+
+ ast_mutex_lock(&pgsql_lock);
+
+ ast_localtime(&cdr->start, &tm, NULL);
+ ast_strftime(timestr, sizeof(timestr), DATE_FORMAT, &tm);
+
+ if ((!connected) && pghostname && pgdbuser && pgpassword && pgdbname) {
+ conn = PQsetdbLogin(pghostname, pgdbport, NULL, NULL, pgdbname, pgdbuser, pgpassword);
+ if (PQstatus(conn) != CONNECTION_BAD) {
+ connected = 1;
+ } else {
+ pgerror = PQerrorMessage(conn);
+ ast_log(LOG_ERROR, "cdr_pgsql: Unable to connect to database server %s. Calls will not be logged!\n", pghostname);
+ ast_log(LOG_ERROR, "cdr_pgsql: Reason: %s\n", pgerror);
+ PQfinish(conn);
+ conn = NULL;
+ }
+ }
+
+ if (connected) {
+ char *clid=NULL, *dcontext=NULL, *channel=NULL, *dstchannel=NULL, *lastapp=NULL, *lastdata=NULL;
+ char *src=NULL, *dst=NULL, *uniqueid=NULL, *userfield=NULL;
+ int pgerr;
+
+ /* Maximum space needed would be if all characters needed to be escaped, plus a trailing NULL */
+ if ((clid = alloca(strlen(cdr->clid) * 2 + 1)) != NULL)
+ PQescapeStringConn(conn, clid, cdr->clid, strlen(cdr->clid), &pgerr);
+ if ((dcontext = alloca(strlen(cdr->dcontext) * 2 + 1)) != NULL)
+ PQescapeStringConn(conn, dcontext, cdr->dcontext, strlen(cdr->dcontext), &pgerr);
+ if ((channel = alloca(strlen(cdr->channel) * 2 + 1)) != NULL)
+ PQescapeStringConn(conn, channel, cdr->channel, strlen(cdr->channel), &pgerr);
+ if ((dstchannel = alloca(strlen(cdr->dstchannel) * 2 + 1)) != NULL)
+ PQescapeStringConn(conn, dstchannel, cdr->dstchannel, strlen(cdr->dstchannel), &pgerr);
+ if ((lastapp = alloca(strlen(cdr->lastapp) * 2 + 1)) != NULL)
+ PQescapeStringConn(conn, lastapp, cdr->lastapp, strlen(cdr->lastapp), &pgerr);
+ if ((lastdata = alloca(strlen(cdr->lastdata) * 2 + 1)) != NULL)
+ PQescapeStringConn(conn, lastdata, cdr->lastdata, strlen(cdr->lastdata), &pgerr);
+ if ((uniqueid = alloca(strlen(cdr->uniqueid) * 2 + 1)) != NULL)
+ PQescapeStringConn(conn, uniqueid, cdr->uniqueid, strlen(cdr->uniqueid), &pgerr);
+ if ((userfield = alloca(strlen(cdr->userfield) * 2 + 1)) != NULL)
+ PQescapeStringConn(conn, userfield, cdr->userfield, strlen(cdr->userfield), &pgerr);
+ if ((src = alloca(strlen(cdr->src) * 2 + 1)) != NULL)
+ PQescapeStringConn(conn, src, cdr->src, strlen(cdr->src), &pgerr);
+ if ((dst = alloca(strlen(cdr->dst) * 2 + 1)) != NULL)
+ PQescapeStringConn(conn, dst, cdr->dst, strlen(cdr->dst), &pgerr);
+
+ /* Check for all alloca failures above at once */
+ if ((!clid) || (!dcontext) || (!channel) || (!dstchannel) || (!lastapp) || (!lastdata) || (!uniqueid) || (!userfield) || (!src) || (!dst)) {
+ ast_log(LOG_ERROR, "cdr_pgsql: Out of memory error (insert fails)\n");
+ ast_mutex_unlock(&pgsql_lock);
+ return -1;
+ }
+
+ ast_debug(2, "cdr_pgsql: inserting a CDR record.\n");
+
+ snprintf(sqlcmd,sizeof(sqlcmd),"INSERT INTO %s (calldate,clid,src,dst,dcontext,channel,dstchannel,"
+ "lastapp,lastdata,duration,billsec,disposition,amaflags,accountcode,uniqueid,userfield) VALUES"
+ " ('%s','%s','%s','%s','%s', '%s','%s','%s','%s',%ld,%ld,'%s',%ld,'%s','%s','%s')",
+ table, timestr, clid, src, dst, dcontext, channel, dstchannel, lastapp, lastdata,
+ cdr->duration,cdr->billsec,ast_cdr_disp2str(cdr->disposition),cdr->amaflags, cdr->accountcode, uniqueid, userfield);
+
+ ast_debug(3, "cdr_pgsql: SQL command executed: %s\n",sqlcmd);
+
+ /* Test to be sure we're still connected... */
+ /* If we're connected, and connection is working, good. */
+ /* Otherwise, attempt reconnect. If it fails... sorry... */
+ if (PQstatus(conn) == CONNECTION_OK) {
+ connected = 1;
+ } else {
+ ast_log(LOG_ERROR, "cdr_pgsql: Connection was lost... attempting to reconnect.\n");
+ PQreset(conn);
+ if (PQstatus(conn) == CONNECTION_OK) {
+ ast_log(LOG_ERROR, "cdr_pgsql: Connection reestablished.\n");
+ connected = 1;
+ } else {
+ pgerror = PQerrorMessage(conn);
+ ast_log(LOG_ERROR, "cdr_pgsql: Unable to reconnect to database server %s. Calls will not be logged!\n", pghostname);
+ ast_log(LOG_ERROR, "cdr_pgsql: Reason: %s\n", pgerror);
+ PQfinish(conn);
+ conn = NULL;
+ connected = 0;
+ ast_mutex_unlock(&pgsql_lock);
+ return -1;
+ }
+ }
+ result = PQexec(conn, sqlcmd);
+ if (PQresultStatus(result) != PGRES_COMMAND_OK) {
+ pgerror = PQresultErrorMessage(result);
+ ast_log(LOG_ERROR,"cdr_pgsql: Failed to insert call detail record into database!\n");
+ ast_log(LOG_ERROR,"cdr_pgsql: Reason: %s\n", pgerror);
+ ast_log(LOG_ERROR,"cdr_pgsql: Connection may have been lost... attempting to reconnect.\n");
+ PQreset(conn);
+ if (PQstatus(conn) == CONNECTION_OK) {
+ ast_log(LOG_ERROR, "cdr_pgsql: Connection reestablished.\n");
+ connected = 1;
+ PQclear(result);
+ result = PQexec(conn, sqlcmd);
+ if (PQresultStatus(result) != PGRES_COMMAND_OK) {
+ pgerror = PQresultErrorMessage(result);
+ ast_log(LOG_ERROR,"cdr_pgsql: HARD ERROR! Attempted reconnection failed. DROPPING CALL RECORD!\n");
+ ast_log(LOG_ERROR,"cdr_pgsql: Reason: %s\n", pgerror);
+ }
+ }
+ ast_mutex_unlock(&pgsql_lock);
+ PQclear(result);
+ return -1;
+ }
+ PQclear(result);
+ }
+ ast_mutex_unlock(&pgsql_lock);
+ return 0;
+}
+
+static int unload_module(void)
+{
+ PQfinish(conn);
+ if (pghostname)
+ ast_free(pghostname);
+ if (pgdbname)
+ ast_free(pgdbname);
+ if (pgdbuser)
+ ast_free(pgdbuser);
+ if (pgpassword)
+ ast_free(pgpassword);
+ if (pgdbport)
+ ast_free(pgdbport);
+ if (table)
+ ast_free(table);
+ ast_cdr_unregister(name);
+ return 0;
+}
+
+static int config_module(int reload)
+{
+ struct ast_variable *var;
+ char *pgerror;
+ const char *tmp;
+ struct ast_config *cfg;
+ struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
+
+ if ((cfg = ast_config_load(config, config_flags)) == NULL) {
+ ast_log(LOG_WARNING, "Unable to load config for PostgreSQL CDR's: %s\n", config);
+ return -1;
+ } else if (cfg == CONFIG_STATUS_FILEUNCHANGED)
+ return 0;
+
+ if (!(var = ast_variable_browse(cfg, "global"))) {
+ ast_config_destroy(cfg);
+ return 0;
+ }
+
+ if (!(tmp = ast_variable_retrieve(cfg, "global", "hostname"))) {
+ ast_log(LOG_WARNING, "PostgreSQL server hostname not specified. Assuming unix socket connection\n");
+ tmp = ""; /* connect via UNIX-socket by default */
+ }
+
+ if (pghostname)
+ ast_free(pghostname);
+ if (!(pghostname = ast_strdup(tmp))) {
+ ast_config_destroy(cfg);
+ return -1;
+ }
+
+ if (!(tmp = ast_variable_retrieve(cfg, "global", "dbname"))) {
+ ast_log(LOG_WARNING,"PostgreSQL database not specified. Assuming asterisk\n");
+ tmp = "asteriskcdrdb";
+ }
+
+ if (pgdbname)
+ ast_free(pgdbname);
+ if (!(pgdbname = ast_strdup(tmp))) {
+ ast_config_destroy(cfg);
+ return -1;
+ }
+
+ if (!(tmp = ast_variable_retrieve(cfg, "global", "user"))) {
+ ast_log(LOG_WARNING,"PostgreSQL database user not specified. Assuming asterisk\n");
+ tmp = "asterisk";
+ }
+
+ if (pgdbuser)
+ ast_free(pgdbuser);
+ if (!(pgdbuser = ast_strdup(tmp))) {
+ ast_config_destroy(cfg);
+ return -1;
+ }
+
+ if (!(tmp = ast_variable_retrieve(cfg, "global", "password"))) {
+ ast_log(LOG_WARNING,"PostgreSQL database password not specified. Assuming blank\n");
+ tmp = "";
+ }
+
+ if (pgpassword)
+ ast_free(pgpassword);
+ if (!(pgpassword = ast_strdup(tmp))) {
+ ast_config_destroy(cfg);
+ return -1;
+ }
+
+ if (!(tmp = ast_variable_retrieve(cfg,"global","port"))) {
+ ast_log(LOG_WARNING,"PostgreSQL database port not specified. Using default 5432.\n");
+ tmp = "5432";
+ }
+
+ if (pgdbport)
+ ast_free(pgdbport);
+ if (!(pgdbport = ast_strdup(tmp))) {
+ ast_config_destroy(cfg);
+ return -1;
+ }
+
+ if (!(tmp = ast_variable_retrieve(cfg, "global", "table"))) {
+ ast_log(LOG_WARNING,"CDR table not specified. Assuming cdr\n");
+ tmp = "cdr";
+ }
+
+ if (table)
+ ast_free(table);
+ if (!(table = ast_strdup(tmp))) {
+ ast_config_destroy(cfg);
+ return -1;
+ }
+
+ if (option_debug) {
+ if (ast_strlen_zero(pghostname))
+ ast_debug(1, "cdr_pgsql: using default unix socket\n");
+ else
+ ast_debug(1, "cdr_pgsql: got hostname of %s\n", pghostname);
+ ast_debug(1, "cdr_pgsql: got port of %s\n", pgdbport);
+ ast_debug(1, "cdr_pgsql: got user of %s\n", pgdbuser);
+ ast_debug(1, "cdr_pgsql: got dbname of %s\n", pgdbname);
+ ast_debug(1, "cdr_pgsql: got password of %s\n", pgpassword);
+ ast_debug(1, "cdr_pgsql: got sql table name of %s\n", table);
+ }
+
+ conn = PQsetdbLogin(pghostname, pgdbport, NULL, NULL, pgdbname, pgdbuser, pgpassword);
+ if (PQstatus(conn) != CONNECTION_BAD) {
+ ast_debug(1, "Successfully connected to PostgreSQL database.\n");
+ connected = 1;
+ } else {
+ pgerror = PQerrorMessage(conn);
+ ast_log(LOG_ERROR, "cdr_pgsql: Unable to connect to database server %s. CALLS WILL NOT BE LOGGED!!\n", pghostname);
+ ast_log(LOG_ERROR, "cdr_pgsql: Reason: %s\n", pgerror);
+ connected = 0;
+ }
+
+ ast_config_destroy(cfg);
+
+ return ast_cdr_register(name, ast_module_info->description, pgsql_log);
+}
+
+static int load_module(void)
+{
+ return config_module(0) ? AST_MODULE_LOAD_DECLINE : 0;
+}
+
+static int reload(void)
+{
+ return config_module(1);
+}
+
+AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "PostgreSQL CDR Backend",
+ .load = load_module,
+ .unload = unload_module,
+ .reload = reload,
+ );