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Issue #5637 - Realtime driver for PostgreSQL (mguesdon)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@17628 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.4
Olle Johansson 19 years ago
parent 756c7cbb12
commit ef6b50b706
2 changed files with 846 additions and 0 deletions
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53
res/Makefile
Unescape View File

@ -43,6 +43,17 @@ else
endif
endif
ifeq ($(wildcard $(CROSS_COMPILE_TARGET)/usr/include/postgresql $(CROSS_COMPILE_TARGET)/usr/local/pgsql/include $(CROSS_COMPILE_TARGET)/usr/include/pgsql $(CROSS_COMPILE_TARGET)/usr/local/include/pgsql $(CROSS_COMPILE_TARGET)/opt/pgsql/include $(CROSS_COMPILE_TARGET)/usr/include/libpq-fe.h),)
MODS:=$(filter-out res_config_pgsql.so,$(MODS))
endif
ifeq ($(wildcard $(CROSS_COMPILE_TARGET)/usr/include/net-snmp/net-snmp-config.h),)
MODS:=$(filter-out res_snmp.so,$(MODS))
else
SNMP_LDLIBS+=$(shell net-snmp-config --agent-libs)
endif
ifeq ($(wildcard $(CROSS_COMPILE_TARGET)/usr/include/net-snmp/net-snmp-config.h),)
MODS:=$(filter-out res_snmp.so,$(MODS))
else
@ -53,6 +64,41 @@ ifeq (${WITH_SMDI},)
MODS:=$(filter-out res_smdi.so,$(MODS))
endif
# Now, go find postgresql libraries
ifneq ($(wildcard $(CROSS_COMPILE_TARGET)/usr/include/postgresql),)
CFLAGS+=-I$(CROSS_COMPILE_TARGET)/usr/include/postgresql
MLFLAGS+=-L$(CROSS_COMPILE_TARGET)/usr/lib/postgresql
endif
ifneq ($(wildcard $(CROSS_COMPILE_TARGET)/usr/local/pgsql/include),)
CFLAGS+=-I$(CROSS_COMPILE_TARGET)/usr/local/pgsql/include
MLFLAGS+=-L$(CROSS_COMPILE_TARGET)/usr/local/pgsql/lib
endif
ifneq ($(wildcard $(CROSS_COMPILE_TARGET)/usr/include/pgsql),)
CFLAGS+=-I$(CROSS_COMPILE_TARGET)/usr/include/pgsql
MLFLAGS+=-L$(CROSS_COMPILE_TARGET)/usr/lib/pgsql
endif
ifneq ($(wildcard $(CROSS_COMPILE_TARGET)/usr/local/include/pgsql),)
CFLAGS+=-I$(CROSS_COMPILE_TARGET)/usr/local/include/pgsql
MLFLAGS+=-L$(CROSS_COMPILE_TARGET)/usr/local/lib/pgsql
endif
ifneq ($(wildcard $(CROSS_COMPILE_TARGET)/opt/pgsql/include),)
CFLAGS+=-I$(CROSS_COMPILE_TARGET)/opt/pgsql/include
MLFLAGS+=-L$(CROSS_COMPILE_TARGET) /opt/pgsql/lib
endif
ifneq ($(wilcard $(CROSS_COMPILE_TARGET)/usr/include/postgresql),)
CFLAGS+=-I$(CROSS_COMPILE_TARGET)/usr/include/postgresql
endif
ifneq ($(wilcard $(CROSS_COMPILE_TARGET)/usr/lib/libpq.so),)
MLFLAGS+=-L$(CROSS_COMPILE_TARGET)/usr/lib
endif
ifeq (${OSARCH},CYGWIN)
CYGSOLINK=-Wl,--out-implib=lib$@.a -Wl,--export-all-symbols
CYGSOLIB=-L.. -L. -lasterisk.dll
@ -65,6 +111,8 @@ CRYPTO_LIBS=-lssl -lcrypto
CFLAGS+=
MLFLAGS=
ifndef WITHOUT_ZAPTEL
ifneq ($(wildcard $(CROSS_COMPILE_TARGET)/usr/include/linux/zaptel.h)$(wildcard $(CROSS_COMPILE_TARGET)/usr/local/include/zaptel.h),)
CFLAGS+=-DZAPATA_MOH
@ -128,6 +176,11 @@ res_config_odbc.so: res_config_odbc.o
res_snmp.so: res_snmp.o snmp/agent.o
$(CC) $(SOLINK) ${SNMP_LDFLAGS} -o $@ ${CYGSOLINK} res_snmp.o snmp/agent.o ${CYGSOLIB} ${SNMP_LDLIBS}
res_config_pgsql.so: res_config_pgsql.o
$(CC) $(SOLINK) -o $@ ${CYGSOLINK} $< ${CYGSOLIB} -lpq -lz $(MLFLAGS)
ifneq ($(wildcard .depend),)
include .depend
endif

793
res/res_config_pgsql.c
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@ -0,0 +1,793 @@
/*
* Asterisk -- A telephony toolkit for Linux.
*
* Copyright (C) 1999-2005, Digium, Inc.
*
* Manuel Guesdon <mguesdon@oxymium.net> - Postgresql RealTime Driver Author/Adaptor
* Mark Spencer <markster@digium.com> - Asterisk Author
* Matthew Boehm <mboehm@cytelcom.com> - MySQL RealTime Driver Author
*
* res_config_pgsql.c <Postgresql plugin for RealTime configuration engine>
*
* v1.0 - (07-11-05) - Initial version based on res_config_mysql v2.0
*/
/*! \file
*
* \brief Postgresql plugin for Asterisk RealTime Architecture
*
* \author Mark Spencer <markster@digium.com>
* \author Manuel Guesdon <mguesdon@oxymium.net> - Postgresql RealTime Driver Author/Adaptor
*
* \arg http://www.postgresql.org
*/
#include <stdlib.h>
#include <string.h>
#include <libpq-fe.h> /* PostgreSQL */
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/config.h"
#include "asterisk/module.h"
#include "asterisk/lock.h"
#include "asterisk/options.h"
#include "asterisk/utils.h"
#include "asterisk/cli.h"
static char *res_config_pgsql_desc = "Postgresql RealTime Configuration Driver";
AST_MUTEX_DEFINE_STATIC(pgsql_lock);
#define RES_CONFIG_PGSQL_CONF "res_pgsql.conf"
PGconn* pgsqlConn = NULL;
static char dbhost[50]="";
static char dbuser[50]="";
static char dbpass[50]="";
static char dbname[50]="";
static char dbsock[50]="";
static int dbport=5432;
static time_t connect_time=0;
static int parse_config(void);
static int pgsql_reconnect(const char *database);
static int realtime_pgsql_status(int fd, int argc, char **argv);
STANDARD_LOCAL_USER;
LOCAL_USER_DECL;
static char cli_realtime_pgsql_status_usage[] =
"Usage: realtime pgsql status\n"
" Shows connection information for the Postgresql RealTime driver\n";
static struct ast_cli_entry cli_realtime_pgsql_status = {
{ "realtime", "pgsql", "status", NULL }, realtime_pgsql_status,
"Shows connection information for the Postgresql RealTime driver", cli_realtime_pgsql_status_usage, NULL };
static struct ast_variable *realtime_pgsql(const char *database, const char *table, va_list ap)
{
PGresult *result = NULL;
int num_rows = 0;
char sql[256];
char *stringp;
char *chunk;
char *op;
const char *newparam, *newval;
struct ast_variable *var=NULL, *prev=NULL;
if(!table) {
ast_log(LOG_WARNING, "Postgresql RealTime: No table specified.\n");
return NULL;
}
/* Get the first parameter and first value in our list of passed paramater/value pairs */
newparam = va_arg(ap, const char *);
newval = va_arg(ap, const char *);
if(!newparam || !newval) {
ast_log(LOG_WARNING, "Postgresql RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n");
if (pgsqlConn)
{
PQfinish(pgsqlConn);
pgsqlConn=NULL;
};
return NULL;
}
/* Create the first part of the query using the first parameter/value pairs we just extracted
If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */
if(!strchr(newparam, ' ')) op = " ="; else op = "";
snprintf(sql, sizeof(sql), "SELECT * FROM %s WHERE %s%s '%s'", table, newparam, op, newval);
while((newparam = va_arg(ap, const char *))) {
newval = va_arg(ap, const char *);
if(!strchr(newparam, ' ')) op = " ="; else op = "";
snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " AND %s%s '%s'", newparam, op, newval);
}
va_end(ap);
/* We now have our complete statement; Lets connect to the server and execute it. */
ast_mutex_lock(&pgsql_lock);
if(!pgsql_reconnect(database)) {
ast_mutex_unlock(&pgsql_lock);
return NULL;
}
if(!(result=PQexec(pgsqlConn, sql))) {
ast_log(LOG_WARNING, "Postgresql RealTime: Failed to query database. Check debug for more info.\n");
ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql);
ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
ast_mutex_unlock(&pgsql_lock);
return NULL;
}
else {
ExecStatusType result_status=PQresultStatus(result);
if (result_status!=PGRES_COMMAND_OK
&& result_status!=PGRES_TUPLES_OK
&& result_status!=PGRES_NONFATAL_ERROR)
{
ast_log(LOG_WARNING, "Postgresql RealTime: Failed to query database. Check debug for more info.\n");
ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql);
ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s (%s)\n",
PQresultErrorMessage(result),PQresStatus(result_status));
ast_mutex_unlock(&pgsql_lock);
return NULL;
}
}
ast_log(LOG_DEBUG, "1Postgresql RealTime: Result=%p Query: %s\n", result, sql);
if((num_rows=PQntuples(result))>0) {
int i = 0;
int rowIndex=0;
int numFields = PQnfields(result);
char** fieldnames=NULL;
ast_log(LOG_DEBUG, "Postgresql RealTime: Found %d rows.\n", num_rows);
fieldnames=malloc(numFields*sizeof(char*));
if (!fieldnames) {
/* If I can't alloc memory at this point, why bother doing anything else? */
ast_log(LOG_WARNING, "Out of memory!\n");
ast_mutex_unlock(&pgsql_lock);
PQclear(result);
return NULL;
}
for(i = 0; i < numFields; i++)
fieldnames[i]=PQfname(result,i);
for(rowIndex=0;rowIndex<num_rows;rowIndex++)
{
for(i = 0; i < numFields; i++) {
stringp = PQgetvalue(result,rowIndex,i);
while(stringp) {
chunk = strsep(&stringp, ";");
if(chunk && !ast_strlen_zero(ast_strip(chunk))) {
if(prev) {
prev->next = ast_variable_new(fieldnames[i], chunk);
if (prev->next) {
prev = prev->next;
}
} else {
prev = var = ast_variable_new(fieldnames[i], chunk);
}
}
}
}
}
free(fieldnames);
} else {
ast_log(LOG_WARNING, "Postgresql RealTime: Could not find any rows in table %s.\n", table);
}
ast_mutex_unlock(&pgsql_lock);
PQclear(result);
return var;
}
static struct ast_config *realtime_multi_pgsql(const char *database, const char *table, va_list ap)
{
PGresult *result = NULL;
int num_rows = 0;
char sql[256];
const char *initfield = NULL;
char *stringp;
char *chunk;
char *op;
const char *newparam, *newval;
struct ast_realloca ra;
struct ast_variable *var=NULL;
struct ast_config *cfg = NULL;
struct ast_category *cat = NULL;
if(!table) {
ast_log(LOG_WARNING, "Postgresql RealTime: No table specified.\n");
return NULL;
}
memset(&ra, 0, sizeof(ra));
cfg = ast_config_new();
if (!cfg) {
/* If I can't alloc memory at this point, why bother doing anything else? */
ast_log(LOG_WARNING, "Out of memory!\n");
return NULL;
}
/* Get the first parameter and first value in our list of passed paramater/value pairs */
newparam = va_arg(ap, const char *);
newval = va_arg(ap, const char *);
if(!newparam || !newval) {
ast_log(LOG_WARNING, "Postgresql RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n");
if (pgsqlConn)
{
PQfinish(pgsqlConn);
pgsqlConn=NULL;
};
return NULL;
}
initfield = ast_strdupa(newparam);
if(initfield && (op = strchr(initfield, ' '))) {
*op = '\0';
}
/* Create the first part of the query using the first parameter/value pairs we just extracted
If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */
if(!strchr(newparam, ' ')) op = " ="; else op = "";
snprintf(sql, sizeof(sql), "SELECT * FROM %s WHERE %s%s '%s'", table, newparam, op, newval);
while((newparam = va_arg(ap, const char *))) {
newval = va_arg(ap, const char *);
if(!strchr(newparam, ' ')) op = " ="; else op = "";
snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " AND %s%s '%s'", newparam, op, newval);
}
if(initfield) {
snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " ORDER BY %s", initfield);
}
va_end(ap);
/* We now have our complete statement; Lets connect to the server and execute it. */
ast_mutex_lock(&pgsql_lock);
if(!pgsql_reconnect(database)) {
ast_mutex_unlock(&pgsql_lock);
return NULL;
}
if(!(result=PQexec(pgsqlConn, sql))) {
ast_log(LOG_WARNING, "Postgresql RealTime: Failed to query database. Check debug for more info.\n");
ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql);
ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
ast_mutex_unlock(&pgsql_lock);
return NULL;
}
else {
ExecStatusType result_status=PQresultStatus(result);
if (result_status!=PGRES_COMMAND_OK
&& result_status!=PGRES_TUPLES_OK
&& result_status!=PGRES_NONFATAL_ERROR)
{
ast_log(LOG_WARNING, "Postgresql RealTime: Failed to query database. Check debug for more info.\n");
ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql);
ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s (%s)\n",
PQresultErrorMessage(result),PQresStatus(result_status));
ast_mutex_unlock(&pgsql_lock);
return NULL;
}
}
ast_log(LOG_DEBUG, "2Postgresql RealTime: Result=%p Query: %s\n", result, sql);
if((num_rows=PQntuples(result))>0) {
int numFields = PQnfields(result);
int i = 0;
int rowIndex=0;
char** fieldnames=NULL;
ast_log(LOG_DEBUG, "Postgresql RealTime: Found %d rows.\n", num_rows);
fieldnames=malloc(numFields*sizeof(char*));
if (!fieldnames) {
/* If I can't alloc memory at this point, why bother doing anything else? */
ast_log(LOG_WARNING, "Out of memory!\n");
ast_mutex_unlock(&pgsql_lock);
PQclear(result);
return NULL;
}
for(i = 0; i < numFields; i++)
fieldnames[i]=PQfname(result,i);
for(rowIndex=0;rowIndex<num_rows;rowIndex++)
{
var = NULL;
cat = ast_category_new("");
if(!cat) {
ast_log(LOG_WARNING, "Out of memory!\n");
continue;
}
for(i = 0; i < numFields; i++) {
stringp = PQgetvalue(result,rowIndex,i);
while(stringp) {
chunk = strsep(&stringp, ";");
if(chunk && !ast_strlen_zero(ast_strip(chunk))) {
if(initfield && !strcmp(initfield, fieldnames[i])) {
ast_category_rename(cat, chunk);
}
var = ast_variable_new(fieldnames[i], chunk);
ast_variable_append(cat, var);
}
}
}
ast_category_append(cfg, cat);
}
free(fieldnames);
} else {
ast_log(LOG_WARNING, "Postgresql RealTime: Could not find any rows in table %s.\n", table);
}
ast_mutex_unlock(&pgsql_lock);
PQclear(result);
return cfg;
}
static int update_pgsql(const char *database, const char *table, const char *keyfield, const char *lookup, va_list ap)
{
PGresult* result = NULL;
int numrows = 0;
char sql[256];
const char *newparam, *newval;
if(!table) {
ast_log(LOG_WARNING, "Postgresql RealTime: No table specified.\n");
return -1;
}
/* Get the first parameter and first value in our list of passed paramater/value pairs */
newparam = va_arg(ap, const char *);
newval = va_arg(ap, const char *);
if(!newparam || !newval) {
ast_log(LOG_WARNING, "Postgresql RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n");
if (pgsqlConn)
{
PQfinish(pgsqlConn);
pgsqlConn=NULL;
};
return -1;
}
/* Create the first part of the query using the first parameter/value pairs we just extracted
If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */
snprintf(sql, sizeof(sql), "UPDATE %s SET %s = '%s'", table, newparam, newval);
while((newparam = va_arg(ap, const char *))) {
newval = va_arg(ap, const char *);
snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), ", %s = '%s'", newparam, newval);
}
va_end(ap);
snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " WHERE %s = '%s'", keyfield, lookup);
ast_log(LOG_DEBUG,"Postgresql RealTime: Update SQL: %s\n", sql);
/* We now have our complete statement; Lets connect to the server and execute it. */
ast_mutex_lock(&pgsql_lock);
if(!pgsql_reconnect(database)) {
ast_mutex_unlock(&pgsql_lock);
return -1;
}
if(!(result=PQexec(pgsqlConn, sql))) {
ast_log(LOG_WARNING, "Postgresql RealTime: Failed to query database. Check debug for more info.\n");
ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql);
ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
ast_mutex_unlock(&pgsql_lock);
return -1;
}
else {
ExecStatusType result_status=PQresultStatus(result);
if (result_status!=PGRES_COMMAND_OK
&& result_status!=PGRES_TUPLES_OK
&& result_status!=PGRES_NONFATAL_ERROR)
{
ast_log(LOG_WARNING, "Postgresql RealTime: Failed to query database. Check debug for more info.\n");
ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql);
ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s (%s)\n",
PQresultErrorMessage(result),PQresStatus(result_status));
ast_mutex_unlock(&pgsql_lock);
return -1;
}
}
numrows = atoi(PQcmdTuples(result));
ast_mutex_unlock(&pgsql_lock);
ast_log(LOG_DEBUG,"Postgresql RealTime: Updated %d rows on table: %s\n", numrows, table);
/* From http://dev.pgsql.com/doc/pgsql/en/pgsql-affected-rows.html
* An integer greater than zero indicates the number of rows affected
* Zero indicates that no records were updated
* -1 indicates that the query returned an error (although, if the query failed, it should have been caught above.)
*/
if(numrows >= 0)
return (int)numrows;
return -1;
}
static struct ast_config *config_pgsql(const char *database, const char *table, const char *file, struct ast_config *cfg)
{
PGresult *result = NULL;
long num_rows;
struct ast_config *new;
struct ast_variable *cur_v, *new_v;
struct ast_category *cur_cat, *new_cat;
char sql[250] = "";
char last[80] = "";
int cat_started = 0;
int var_started = 0;
int last_cat_metric = 0;
last[0] = '\0';
if(!file || !strcmp(file, RES_CONFIG_PGSQL_CONF)) {
ast_log(LOG_WARNING, "Postgresql RealTime: Cannot configure myself.\n");
return NULL;
}
snprintf(sql, sizeof(sql), "SELECT category, var_name, var_val, cat_metric FROM %s WHERE filename='%s' and commented=0 ORDER BY filename, cat_metric desc, var_metric asc, category, var_name, var_val, id", table, file);
ast_log(LOG_DEBUG, "Postgresql RealTime: Static SQL: %s\n", sql);
/* We now have our complete statement; Lets connect to the server and execute it. */
ast_mutex_lock(&pgsql_lock);
if(!pgsql_reconnect(database)) {
ast_mutex_unlock(&pgsql_lock);
return NULL;
}
if(!(result=PQexec(pgsqlConn, sql))) {
ast_log(LOG_WARNING, "Postgresql RealTime: Failed to query database. Check debug for more info.\n");
ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql);
ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
ast_mutex_unlock(&pgsql_lock);
return NULL;
}
else {
ExecStatusType result_status=PQresultStatus(result);
if (result_status!=PGRES_COMMAND_OK
&& result_status!=PGRES_TUPLES_OK
&& result_status!=PGRES_NONFATAL_ERROR)
{
ast_log(LOG_WARNING, "Postgresql RealTime: Failed to query database. Check debug for more info.\n");
ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql);
ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s (%s)\n",
PQresultErrorMessage(result),PQresStatus(result_status));
ast_mutex_unlock(&pgsql_lock);
return NULL;
}
}
if((num_rows=PQntuples(result))>0) {
int numFields = PQnfields(result);
int i = 0;
int rowIndex=0;
char** fieldnames=NULL;
ast_log(LOG_DEBUG, "Postgresql RealTime: Found %d rows.\n", num_rows);
fieldnames=malloc(numFields*sizeof(char*));
if (!fieldnames) {
/* If I can't alloc memory at this point, why bother doing anything else? */
ast_log(LOG_WARNING, "Out of memory!\n");
ast_mutex_unlock(&pgsql_lock);
PQclear(result);
return NULL;
}
for(i = 0; i < numFields; i++)
fieldnames[i]=PQfname(result,i);
for(rowIndex=0;rowIndex<num_rows;rowIndex++)
{
char* field_category=PQgetvalue(result,rowIndex,0);
char* field_var_name=PQgetvalue(result,rowIndex,1);
char* field_var_val=PQgetvalue(result,rowIndex,2);
char* field_cat_metric=PQgetvalue(result,rowIndex,3);
if(!strcmp(field_var_name, "#include")) {
if (!ast_config_internal_load(field_var_val, cfg)) {
PQclear(result);
ast_mutex_unlock(&pgsql_lock);
return NULL;
}
continue;
}
if(strcmp(last, field_category) || last_cat_metric != atoi(field_cat_metric)) {
cur_cat = ast_category_new(field_category);
if (!cur_cat) {
ast_log(LOG_WARNING, "Out of memory!\n");
break;
}
strcpy(last, field_category);
last_cat_metric = atoi(field_cat_metric);
ast_category_append(cfg, cur_cat);
}
new_v = ast_variable_new(field_var_name, field_var_val);
ast_variable_append(cur_cat, new_v);
}
} else {
ast_log(LOG_WARNING, "Postgresql RealTime: Could not find config '%s' in database.\n", file);
}
PQclear(result);
ast_mutex_unlock(&pgsql_lock);
return cfg;
}
static struct ast_config_engine pgsql_engine = {
.name = "pgsql",
.load_func = config_pgsql,
.realtime_func = realtime_pgsql,
.realtime_multi_func = realtime_multi_pgsql,
.update_func = update_pgsql
};
int load_module (void)
{
parse_config();
ast_mutex_lock(&pgsql_lock);
if(!pgsql_reconnect(NULL)) {
ast_log(LOG_WARNING, "Postgresql RealTime: Couldn't establish connection. Check debug.\n");
ast_log(LOG_DEBUG, "Postgresql RealTime: Cannot Connect: %s\n", PQerrorMessage(pgsqlConn));
}
ast_config_engine_register(&pgsql_engine);
if(option_verbose) {
ast_verbose("Postgresql RealTime driver loaded.\n");
}
ast_cli_register(&cli_realtime_pgsql_status);
ast_mutex_unlock(&pgsql_lock);
return 0;
}
int unload_module (void)
{
/* Aquire control before doing anything to the module itself. */
ast_mutex_lock(&pgsql_lock);
if (pgsqlConn)
{
PQfinish(pgsqlConn);
pgsqlConn=NULL;
};
ast_cli_unregister(&cli_realtime_pgsql_status);
ast_config_engine_deregister(&pgsql_engine);
if(option_verbose) {
ast_verbose("Postgresql RealTime unloaded.\n");
}
STANDARD_HANGUP_LOCALUSERS;
/* Unlock so something else can destroy the lock. */
ast_mutex_unlock(&pgsql_lock);
return 0;
}
int reload (void)
{
/* Aquire control before doing anything to the module itself. */
ast_mutex_lock(&pgsql_lock);
if (pgsqlConn)
{
PQfinish(pgsqlConn);
pgsqlConn=NULL;
};
parse_config();
if(!pgsql_reconnect(NULL)) {
ast_log(LOG_WARNING, "Postgresql RealTime: Couldn't establish connection. Check debug.\n");
ast_log(LOG_DEBUG, "Postgresql RealTime: Cannot Connect: %s\n", PQerrorMessage(pgsqlConn));
}
ast_verbose(VERBOSE_PREFIX_2 "Postgresql RealTime reloaded.\n");
/* Done reloading. Release lock so others can now use driver. */
ast_mutex_unlock(&pgsql_lock);
return 0;
}
int parse_config (void)
{
struct ast_config *config;
char *s;
config = ast_config_load(RES_CONFIG_PGSQL_CONF);
if(config) {
if(!(s=ast_variable_retrieve(config, "general", "dbuser"))) {
ast_log(LOG_WARNING, "Postgresql RealTime: No database user found, using 'asterisk' as default.\n");
strncpy(dbuser, "asterisk", sizeof(dbuser) - 1);
} else {
strncpy(dbuser, s, sizeof(dbuser) - 1);
}
if(!(s=ast_variable_retrieve(config, "general", "dbpass"))) {
ast_log(LOG_WARNING, "Postgresql RealTime: No database password found, using 'asterisk' as default.\n");
strncpy(dbpass, "asterisk", sizeof(dbpass) - 1);
} else {
strncpy(dbpass, s, sizeof(dbpass) - 1);
}
if(!(s=ast_variable_retrieve(config, "general", "dbhost"))) {
ast_log(LOG_WARNING, "Postgresql RealTime: No database host found, using localhost via socket.\n");
dbhost[0] = '\0';
} else {
strncpy(dbhost, s, sizeof(dbhost) - 1);
}
if(!(s=ast_variable_retrieve(config, "general", "dbname"))) {
ast_log(LOG_WARNING, "Postgresql RealTime: No database name found, using 'asterisk' as default.\n");
strncpy(dbname, "asterisk", sizeof(dbname) - 1);
} else {
strncpy(dbname, s, sizeof(dbname) - 1);
}
if(!(s=ast_variable_retrieve(config, "general", "dbport"))) {
ast_log(LOG_WARNING, "Postgresql RealTime: No database port found, using 5432 as default.\n");
dbport = 5432;
} else {
dbport = atoi(s);
}
if(dbhost && !(s=ast_variable_retrieve(config, "general", "dbsock"))) {
ast_log(LOG_WARNING, "Postgresql RealTime: No database socket found, using '/tmp/pgsql.sock' as default.\n");
strncpy(dbsock, "/tmp/pgsql.sock", sizeof(dbsock) - 1);
} else {
strncpy(dbsock, s, sizeof(dbsock) - 1);
}
}
ast_config_destroy(config);
if(dbhost) {
ast_log(LOG_DEBUG, "Postgresql RealTime Host: %s\n", dbhost);
ast_log(LOG_DEBUG, "Postgresql RealTime Port: %i\n", dbport);
} else {
ast_log(LOG_DEBUG, "Postgresql RealTime Socket: %s\n", dbsock);
}
ast_log(LOG_DEBUG, "Postgresql RealTime User: %s\n", dbuser);
ast_log(LOG_DEBUG, "Postgresql RealTime Password: %s\n", dbpass);
ast_log(LOG_DEBUG, "Postgresql RealTime DBName: %s\n", dbname);
return 1;
}
char *description (void)
{
return res_config_pgsql_desc;
}
int usecount (void)
{
/* Try and get a lock. If unsuccessful, than that means another thread is using the pgsql object. */
if(ast_mutex_trylock(&pgsql_lock)) {
ast_log(LOG_DEBUG, "Postgresql RealTime: Module usage count is 1.\n");
return 1;
}
ast_mutex_unlock(&pgsql_lock);
return 0;
}
char *key ()
{
return ASTERISK_GPL_KEY;
}
static int pgsql_reconnect(const char *database)
{
char my_database[50];
if(!database || ast_strlen_zero(database))
ast_copy_string(my_database, dbname, sizeof(my_database));
else
ast_copy_string(my_database, database, sizeof(my_database));
/* mutex lock should have been locked before calling this function. */
if (pgsqlConn && PQstatus(pgsqlConn) != CONNECTION_OK) {
PQfinish(pgsqlConn);
pgsqlConn=NULL;
}
if((!pgsqlConn) && (dbhost || dbsock) && dbuser && dbpass && my_database) {
char* connInfo=NULL;
unsigned int size=100
+strlen(dbhost)
+strlen(dbuser)
+strlen(dbpass)
+strlen(my_database);
connInfo=malloc(size);
if (!connInfo)
{
ast_log(LOG_WARNING, "Postgresql RealTime: Insufficient memory to allocate Pgsql resource.\n");
return 0;
}
else
{
sprintf(connInfo,"host=%s port=%d dbname=%s user=%s password=%s",
dbhost,dbport,my_database,dbuser,dbpass);
ast_log(LOG_DEBUG, "%u connInfo=%s\n", size,connInfo);
pgsqlConn=PQconnectdb(connInfo);
ast_log(LOG_DEBUG, "%u connInfo=%s\n", size,connInfo);
free(connInfo);
connInfo=NULL;
ast_log(LOG_DEBUG, "pgsqlConn=%p\n", pgsqlConn);
if (pgsqlConn)
{
ast_log(LOG_DEBUG, "Postgresql RealTime: Successfully connected to database.\n");
connect_time = time(NULL);
return 1;
} else {
ast_log(LOG_ERROR, "Postgresql RealTime: Failed to connect database server %s on %s. Check debug for more info.\n", dbname, dbhost);
ast_log(LOG_DEBUG, "Postgresql RealTime: Cannot Connect: %s\n", PQresultErrorMessage(NULL));
return 0;
}
}
} else {
ast_log(LOG_DEBUG, "Postgresql RealTime: Everything is fine.\n");
return 1;
}
}
static int realtime_pgsql_status(int fd, int argc, char **argv)
{
char status[256], status2[100] = "";
int ctime = time(NULL) - connect_time;
if(pgsqlConn && PQstatus(pgsqlConn) == CONNECTION_OK) {
if(dbhost) {
snprintf(status, 255, "Connected to %s@%s, port %d", dbname, dbhost, dbport);
} else if(dbsock) {
snprintf(status, 255, "Connected to %s on socket file %s", dbname, dbsock);
} else {
snprintf(status, 255, "Connected to %s@%s", dbname, dbhost);
}
if(dbuser && *dbuser) {
snprintf(status2, 99, " with username %s", dbuser);
}
if (ctime > 31536000) {
ast_cli(fd, "%s%s for %d years, %d days, %d hours, %d minutes, %d seconds.\n", status, status2, ctime / 31536000, (ctime % 31536000) / 86400, (ctime % 86400) / 3600, (ctime % 3600) / 60, ctime % 60);
} else if (ctime > 86400) {
ast_cli(fd, "%s%s for %d days, %d hours, %d minutes, %d seconds.\n", status, status2, ctime / 86400, (ctime % 86400) / 3600, (ctime % 3600) / 60, ctime % 60);
} else if (ctime > 3600) {
ast_cli(fd, "%s%s for %d hours, %d minutes, %d seconds.\n", status, status2, ctime / 3600, (ctime % 3600) / 60, ctime % 60);
} else if (ctime > 60) {
ast_cli(fd, "%s%s for %d minutes, %d seconds.\n", status, status2, ctime / 60, ctime % 60);
} else {
ast_cli(fd, "%s%s for %d seconds.\n", status, status2, ctime);
}
return RESULT_SUCCESS;
} else {
return RESULT_FAILURE;
}
}
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