Add PGSQL support

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@1594 f38db490-d61c-443f-a65b-d21fe96a405b

2 files changed, 342 insertions, 0 deletions

diff --git a/cdr/Makefile b/cdr/Makefile
index 368a8508b..8b64bef3d 100755
--- a/cdr/Makefile
+++ b/cdr/Makefile
@@ -15,6 +15,21 @@ MODS=cdr_csv.so
 
 CFLAGS+=-fPIC
 
+#
+# MySQL stuff...  Autoconf anyone??
+#
+MODS+=$(shell if [ -d /usr/local/pgsql/include ] || [ -d /usr/include/pgsql ] || [ -d /usr/local/include/pgsql ] || [ -d /opt/pgsql/include ] || [ -f /usr/include/libpq-fe.h ] ; then echo "cdr_pgsql.so"; fi)
+CFLAGS+=$(shell if [ -d /usr/local/pgsql/include ]; then echo "-I/usr/local/pgsql/include"; fi)
+CFLAGS+=$(shell if [ -d /usr/include/pgsql ]; then echo "-I/usr/include/pgsql"; fi)
+CFLAGS+=$(shell if [ -d /usr/local/include/pgsql ]; then echo "-I/usr/local/include/pgsql"; fi)
+CFLAGS+=$(shell if [ -d /opt/pgsql/include ]; then echo "-I/opt/pgsql/include"; fi)
+CFLAGS+=$(shell if [ -f /usr/include/libpq-fe.h ]; then echo "-I/usr/include"; fi)
+MLFLAGS=
+MLFLAGS+=$(shell if [ -d /usr/lib/pgsql ]; then echo "-L/usr/lib/pgsql"; fi)
+MLFLAGS+=$(shell if [ -d /usr/local/pgsql/lib ]; then echo "-L/usr/local/pgsql/lib"; fi)
+MLFLAGS+=$(shell if [ -d /usr/local/lib/pgsql ]; then echo "-L/usr/local/lib/pgsql"; fi)
+MLFLAGS+=$(shell if [ -d /opt/pgsql/lib ]; then echo "-L/opt/pgsql/lib"; fi)
+MLFLAGS+=$(shell if [ -f /usr/lib/libpq.so ]; then echo "-L/usr/lib"; fi)
 
 all: depend $(MODS)
 
@@ -31,6 +46,9 @@ ifneq ($(wildcard .depend),)
 include .depend
 endif
 
+cdr_pgsql.so: cdr_pgsql.o
+	$(CC) -shared -Xlinker -x -o $@ $< -lpq -lz $(MLFLAGS)
+
 depend: .depend
 
 .depend:
diff --git a/cdr/cdr_pgsql.c b/cdr/cdr_pgsql.c
new file mode 100755
index 000000000..1d159af2d
--- /dev/null
+++ b/cdr/cdr_pgsql.c
@@ -0,0 +1,324 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * PostgreSQL CDR logger 
+ *
+ * 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>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License.
+ *
+ */
+
+#include <sys/types.h>
+#include <asterisk/config.h>
+#include <asterisk/options.h>
+#include <asterisk/channel.h>
+#include <asterisk/cdr.h>
+#include <asterisk/module.h>
+#include <asterisk/logger.h>
+#include "../asterisk.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+
+#include <libpq-fe.h>
+#include <errmsg.h>
+
+#define DATE_FORMAT "%Y-%m-%d %T"
+
+static char *desc = "PostgreSQL CDR Backend";
+static char *name = "pgsql";
+static char *config = "cdr_pgsql.conf";
+static char *pghostname = NULL, *pgdbname = NULL, *pgdbuser = NULL, *pgpassword = NULL, *pgdbsock = NULL, *pgdbport = NULL;
+static int hostname_alloc = 0, dbname_alloc = 0, dbuser_alloc = 0, password_alloc = 0, dbsock_alloc = 0, dbport_alloc = 0;
+static int connected = 0;
+
+static ast_mutex_t pgsql_lock = AST_MUTEX_INITIALIZER;
+
+PGconn		*conn;
+PGresult	*result;
+
+static int pgsql_log(struct ast_cdr *cdr)
+{
+	struct tm tm;
+	struct timeval tv;
+	char sqlcmd[2048], timestr[128];
+	time_t t;
+
+	ast_mutex_lock(&pgsql_lock);
+
+	memset(sqlcmd,0,2048);
+
+	gettimeofday(&tv,NULL);
+	t = tv.tv_sec;
+	localtime_r(&t,&tm);
+	strftime(timestr,128,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 {
+			ast_log(LOG_ERROR, "cdr_pgsql: cannot connect to database server %s.  Call will not be logged\n", pghostname);
+		}
+	} else {
+		/* 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... reattempting connection.");
+			PQreset(conn);
+			if (PQstatus(conn) == CONNECTION_OK) {
+				ast_log(LOG_ERROR, "cdr_pgsql: connection reestablished.");
+				connected = 1;
+			} else {
+				ast_log(LOG_ERROR, "cdr_pgsql: unable to reconnect to database.");
+				connected = 0;
+			}
+		}
+
+	}
+
+	if (connected) {
+		char *clid=NULL, *dcontext=NULL, *channel=NULL, *dstchannel=NULL, *lastapp=NULL, *lastdata=NULL;
+		char *uniqueid=NULL;
+
+		/* 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)
+			PQescapeString(clid, cdr->clid, strlen(cdr->clid));
+		if ((dcontext = alloca(strlen(cdr->dcontext) * 2 + 1)) != NULL)
+			PQescapeString(dcontext, cdr->dcontext, strlen(cdr->dcontext));
+		if ((channel = alloca(strlen(cdr->channel) * 2 + 1)) != NULL)
+			PQescapeString(channel, cdr->channel, strlen(cdr->channel));
+		if ((dstchannel = alloca(strlen(cdr->dstchannel) * 2 + 1)) != NULL)
+			PQescapeString(dstchannel, cdr->dstchannel, strlen(cdr->dstchannel));
+		if ((lastapp = alloca(strlen(cdr->lastapp) * 2 + 1)) != NULL)
+			PQescapeString(lastapp, cdr->lastapp, strlen(cdr->lastapp));
+		if ((lastdata = alloca(strlen(cdr->lastdata) * 2 + 1)) != NULL)
+			PQescapeString(lastdata, cdr->lastdata, strlen(cdr->lastdata));
+		if ((uniqueid = alloca(strlen(cdr->uniqueid) * 2 + 1)) != NULL)
+			PQescapeString(uniqueid, cdr->uniqueid, strlen(cdr->uniqueid));
+
+		/* Check for all alloca failures above at once */
+		if ((!clid) || (!dcontext) || (!channel) || (!dstchannel) || (!lastapp) || (!lastdata) || (!uniqueid)) {
+			ast_log(LOG_ERROR, "cdr_pgsql:  Out of memory error (insert fails)\n");
+			ast_mutex_unlock(&pgsql_lock);
+			return -1;
+		}
+
+		ast_log(LOG_DEBUG,"cdr_pgsql: inserting a CDR record.\n");
+
+		sprintf(sqlcmd,"INSERT INTO cdr (calldate,clid,src,dst,dcontext,channel,dstchannel,lastapp,lastdata,duration,billsec,disposition,amaflags,accountcode,uniqueid) VALUES ('%s','%s','%s','%s','%s', '%s','%s','%s','%s',%i,%i,'%s',%i,'%s','%s')",timestr,clid,cdr->src, cdr->dst, dcontext,channel, dstchannel, lastapp, lastdata,cdr->duration,cdr->billsec,ast_cdr_disp2str(cdr->disposition),cdr->amaflags, cdr->accountcode, uniqueid);
+		ast_log(LOG_DEBUG,"cdr_pgsql: SQL command as follows:  %s\n",sqlcmd);
+	
+		result = PQexec(conn, sqlcmd);
+		if ( PQresultStatus(result) != PGRES_COMMAND_OK) {
+			ast_log(LOG_ERROR,"cdr_pgsql: Failed to insert call detail record into database.");
+			ast_mutex_unlock(&pgsql_lock);
+			return -1;
+		}
+	}
+	ast_mutex_unlock(&pgsql_lock);
+	return 0;
+}
+
+char *description(void)
+{
+	return desc;
+}
+
+static int my_unload_module(void)
+{ 
+	PQfinish(conn);
+	connected = 0;
+	if (pghostname && hostname_alloc) {
+		free(pghostname);
+		pghostname = NULL;
+		hostname_alloc = 0;
+	}
+	if (pgdbname && dbname_alloc) {
+		free(pgdbname);
+		pgdbname = NULL;
+		dbname_alloc = 0;
+	}
+	if (pgdbuser && dbuser_alloc) {
+		free(pgdbuser);
+		pgdbuser = NULL;
+		dbuser_alloc = 0;
+	}
+	if (pgdbsock && dbsock_alloc) {
+		free(pgdbsock);
+		pgdbsock = NULL;
+		dbsock_alloc = 0;
+	}
+	if (pgpassword && password_alloc) {
+		free(pgpassword);
+		pgpassword = NULL;
+		password_alloc = 0;
+	}
+	if (pgdbport && dbport_alloc) {
+		free(pgdbport);
+		pgdbport = NULL;
+		dbport_alloc = 0;
+	}
+	ast_cdr_unregister(name);
+	return 0;
+}
+
+static int my_load_module(void)
+{
+	int res;
+	struct ast_config *cfg;
+	struct ast_variable *var;
+	char *tmp;
+
+	cfg = ast_load(config);
+	if (!cfg) {
+		ast_log(LOG_WARNING, "Unable to load config for PostgreSQL CDR's: %s\n", config);
+		return 0;
+	}
+	
+	var = ast_variable_browse(cfg, "global");
+	if (!var) {
+		/* nothing configured */
+		return 0;
+	}
+
+	tmp = ast_variable_retrieve(cfg,"global","hostname");
+	if (tmp) {
+		pghostname = malloc(strlen(tmp) + 1);
+		if (pghostname != NULL) {
+			hostname_alloc = 1;
+			strcpy(pghostname,tmp);
+		} else {
+			ast_log(LOG_ERROR,"Out of memory error.\n");
+			return -1;
+		}
+	} else {
+		ast_log(LOG_WARNING,"PostgreSQL server hostname not specified.  Assuming localhost\n");
+		pghostname = "localhost";
+	}
+
+	tmp = ast_variable_retrieve(cfg,"global","dbname");
+	if (tmp) {
+		pgdbname = malloc(strlen(tmp) + 1);
+		if (pgdbname != NULL) {
+			dbname_alloc = 1;
+			strcpy(pgdbname,tmp);
+		} else {
+			ast_log(LOG_ERROR,"Out of memory error.\n");
+			return -1;
+		}
+	} else {
+		ast_log(LOG_WARNING,"PostgreSQL database not specified.  Assuming asteriskcdrdb\n");
+		pgdbname = "asteriskcdrdb";
+	}
+
+	tmp = ast_variable_retrieve(cfg,"global","user");
+	if (tmp) {
+		pgdbuser = malloc(strlen(tmp) + 1);
+		if (pgdbuser != NULL) {
+			dbuser_alloc = 1;
+			strcpy(pgdbuser,tmp);
+		} else {
+			ast_log(LOG_ERROR,"Out of memory error.\n");
+			return -1;
+		}
+	} else {
+		ast_log(LOG_WARNING,"PostgreSQL database user not specified.  Assuming root\n");
+		pgdbuser = "root";
+	}
+
+	tmp = ast_variable_retrieve(cfg,"global","password");
+	if (tmp) {
+		pgpassword = malloc(strlen(tmp) + 1);
+		if (pgpassword != NULL) {
+			password_alloc = 1;
+			strcpy(pgpassword,tmp);
+		} else {
+			ast_log(LOG_ERROR,"Out of memory error.\n");
+			return -1;
+		}
+	} else {
+		ast_log(LOG_WARNING,"PostgreSQL database password not specified.  Assuming blank\n");
+		pgpassword = "";
+	}
+
+	tmp = ast_variable_retrieve(cfg,"global","port");
+	if (tmp) {
+		pgdbport = malloc(strlen(tmp) + 1);
+		if (pgdbport != NULL) {
+			dbport_alloc = 1;
+			strcpy(pgdbport,tmp);
+		} else {
+			ast_log(LOG_ERROR,"Out of memory error.\n");
+			return -1;
+		}
+	} else {
+		ast_log(LOG_WARNING,"PostgreSQL database port not specified.  Using default.\n");
+		pgdbport = "5432";
+	}
+
+	ast_destroy(cfg);
+
+	ast_log(LOG_DEBUG,"cdr_pgsql: got hostname of %s\n",pghostname);
+	ast_log(LOG_DEBUG,"cdr_pgsql: got port of %s\n",pgdbport);
+	if (pgdbsock)
+		ast_log(LOG_DEBUG,"cdr_pgsql: got sock file of %s\n",pgdbsock);
+	ast_log(LOG_DEBUG,"cdr_pgsql: got user of %s\n",pgdbuser);
+	ast_log(LOG_DEBUG,"cdr_pgsql: got dbname of %s\n",pgdbname);
+	ast_log(LOG_DEBUG,"cdr_pgsql: got password of %s\n",pgpassword);
+
+	conn = PQsetdbLogin(pghostname, pgdbport, NULL, NULL, pgdbname, pgdbuser, pgpassword);
+	if (PQstatus(conn) != CONNECTION_BAD) {
+		ast_log(LOG_DEBUG,"Successfully connected to PostgreSQL database.\n");
+		connected = 1;
+	} else {
+		ast_log(LOG_ERROR, "cdr_pgsql: cannot connect to database server %s.  Call will not be logged\n", pghostname);
+		connected = 0;
+	}
+
+	res = ast_cdr_register(name, desc, pgsql_log);
+	if (res) {
+		ast_log(LOG_ERROR, "Unable to register PGSQL CDR handling\n");
+	}
+	return res;
+}
+
+int load_module(void)
+{
+	return my_load_module();
+}
+
+int unload_module(void)
+{
+	return my_unload_module();
+}
+
+int reload(void)
+{
+	my_unload_module();
+	return my_load_module();
+}
+
+int usecount(void)
+{
+	return connected;
+}
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}