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534 lines
17 KiB
534 lines
17 KiB
/*
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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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* \extref PostgreSQL http://www.postgresql.org/
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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 <time.h>
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#include <libpq-fe.h>
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#include "asterisk/config.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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#define DATE_FORMAT "'%Y-%m-%d %T'"
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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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static int maxsize = 512, maxsize2 = 512;
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AST_MUTEX_DEFINE_STATIC(pgsql_lock);
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static PGconn *conn = NULL;
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struct columns {
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char *name;
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char *type;
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int len;
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unsigned int notnull:1;
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unsigned int hasdefault:1;
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AST_RWLIST_ENTRY(columns) list;
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};
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static AST_RWLIST_HEAD_STATIC(psql_columns, columns);
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#define LENGTHEN_BUF1(size) \
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do { \
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/* Lengthen buffer, if necessary */ \
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if ((newsize = lensql + (size) + 3) > sizesql) { \
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if ((tmp = ast_realloc(sql, (newsize / 512 + 1) * 512))) { \
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sql = tmp; \
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sizesql = (newsize / 512 + 1) * 512; \
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} else { \
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ast_log(LOG_ERROR, "Unable to allocate sufficient memory. Insert CDR failed.\n"); \
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ast_free(sql); \
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ast_free(sql2); \
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AST_RWLIST_UNLOCK(&psql_columns); \
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return -1; \
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} \
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} \
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} while (0)
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#define LENGTHEN_BUF2(size) \
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do { \
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if ((newsize = lensql2 + (size) + 3) > sizesql2) { \
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if ((tmp = ast_realloc(sql2, (newsize / 512 + 1) * 512))) { \
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sql2 = tmp; \
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sizesql2 = (newsize / 512 + 1) * 512; \
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} else { \
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ast_log(LOG_ERROR, "Unable to allocate sufficient memory. Insert CDR failed.\n"); \
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ast_free(sql); \
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ast_free(sql2); \
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AST_RWLIST_UNLOCK(&psql_columns); \
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return -1; \
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} \
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} \
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} while (0)
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static int pgsql_log(struct ast_cdr *cdr)
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{
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struct ast_tm tm;
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char *pgerror;
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PGresult *result;
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ast_mutex_lock(&pgsql_lock);
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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, "Unable to connect to database server %s. Calls will not be logged!\n", pghostname);
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ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
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PQfinish(conn);
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conn = NULL;
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}
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}
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if (connected) {
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struct columns *cur;
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int lensql, lensql2, sizesql = maxsize, sizesql2 = maxsize2, newsize;
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char *sql = ast_calloc(sizeof(char), sizesql), *sql2 = ast_calloc(sizeof(char), sizesql2), *tmp, *value;
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char buf[257], escapebuf[513];
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lensql = snprintf(sql, sizesql, "INSERT INTO %s (", table);
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lensql2 = snprintf(sql2, sizesql2, " VALUES (");
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AST_RWLIST_RDLOCK(&psql_columns);
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AST_RWLIST_TRAVERSE(&psql_columns, cur, list) {
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/* For fields not set, simply skip them */
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ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
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if (strcmp(cur->name, "calldate") == 0 && !value) {
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ast_cdr_getvar(cdr, "start", &value, buf, sizeof(buf), 0, 0);
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}
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if (!value) {
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if (cur->notnull && !cur->hasdefault) {
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/* Field is NOT NULL (but no default), must include it anyway */
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LENGTHEN_BUF1(strlen(cur->name) + 2);
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lensql += snprintf(sql + lensql, sizesql - lensql, "\"%s\",", cur->name);
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LENGTHEN_BUF2(3);
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strcat(sql2, "'',");
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lensql2 += 3;
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}
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continue;
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}
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LENGTHEN_BUF1(strlen(cur->name) + 2);
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lensql += snprintf(sql + lensql, sizesql - lensql, "\"%s\",", cur->name);
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if (strcmp(cur->name, "start") == 0 || strcmp(cur->name, "calldate") == 0) {
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if (strncmp(cur->type, "int", 3) == 0) {
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LENGTHEN_BUF2(12);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%ld", cdr->start.tv_sec);
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} else if (strncmp(cur->type, "float", 5) == 0) {
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LENGTHEN_BUF2(30);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%f", (double)cdr->start.tv_sec + (double)cdr->start.tv_usec / 1000000.0);
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} else {
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/* char, hopefully */
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LENGTHEN_BUF2(30);
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ast_localtime(&cdr->start, &tm, NULL);
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lensql2 += ast_strftime(sql2 + lensql2, sizesql2 - lensql2, DATE_FORMAT, &tm);
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}
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} else if (strcmp(cur->name, "answer") == 0) {
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if (strncmp(cur->type, "int", 3) == 0) {
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LENGTHEN_BUF2(12);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%ld", cdr->answer.tv_sec);
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} else if (strncmp(cur->type, "float", 5) == 0) {
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LENGTHEN_BUF2(30);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%f", (double)cdr->answer.tv_sec + (double)cdr->answer.tv_usec / 1000000.0);
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} else {
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/* char, hopefully */
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LENGTHEN_BUF2(30);
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ast_localtime(&cdr->start, &tm, NULL);
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lensql2 += ast_strftime(sql2 + lensql2, sizesql2 - lensql2, DATE_FORMAT, &tm);
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}
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} else if (strcmp(cur->name, "end") == 0) {
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if (strncmp(cur->type, "int", 3) == 0) {
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LENGTHEN_BUF2(12);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%ld", cdr->end.tv_sec);
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} else if (strncmp(cur->type, "float", 5) == 0) {
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LENGTHEN_BUF2(30);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%f", (double)cdr->end.tv_sec + (double)cdr->end.tv_usec / 1000000.0);
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} else {
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/* char, hopefully */
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LENGTHEN_BUF2(30);
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ast_localtime(&cdr->end, &tm, NULL);
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lensql2 += ast_strftime(sql2 + lensql2, sizesql2 - lensql2, DATE_FORMAT, &tm);
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}
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} else if (strcmp(cur->name, "duration") == 0 || strcmp(cur->name, "billsec") == 0) {
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if (cur->type[0] == 'i') {
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/* Get integer, no need to escape anything */
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ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
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LENGTHEN_BUF2(12);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%s", value);
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} else if (strncmp(cur->type, "float", 5) == 0) {
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struct timeval *when = cur->name[0] == 'd' ? &cdr->start : &cdr->answer;
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LENGTHEN_BUF2(30);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%f", (double)cdr->end.tv_sec - when->tv_sec + cdr->end.tv_usec / 1000000.0 - when->tv_usec / 1000000.0);
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} else {
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/* Char field, probably */
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struct timeval *when = cur->name[0] == 'd' ? &cdr->start : &cdr->answer;
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LENGTHEN_BUF2(30);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "'%f'", (double)cdr->end.tv_sec - when->tv_sec + cdr->end.tv_usec / 1000000.0 - when->tv_usec / 1000000.0);
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}
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} else if (strcmp(cur->name, "disposition") == 0 || strcmp(cur->name, "amaflags") == 0) {
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if (strncmp(cur->type, "int", 3) == 0) {
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/* Integer, no need to escape anything */
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ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 1);
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LENGTHEN_BUF2(12);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%s", value);
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} else {
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/* Although this is a char field, there are no special characters in the values for these fields */
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ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
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LENGTHEN_BUF2(30);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "'%s'", value);
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}
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} else {
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/* Arbitrary field, could be anything */
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ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
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if (strncmp(cur->type, "int", 3) == 0) {
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long long whatever;
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if (value && sscanf(value, "%lld", &whatever) == 1) {
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LENGTHEN_BUF2(25);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%lld", whatever);
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} else {
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LENGTHEN_BUF2(1);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "0");
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}
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} else if (strncmp(cur->type, "float", 5) == 0) {
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long double whatever;
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if (value && sscanf(value, "%Lf", &whatever) == 1) {
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LENGTHEN_BUF2(50);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%30Lf", whatever);
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} else {
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LENGTHEN_BUF2(1);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "0");
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}
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/* XXX Might want to handle dates, times, and other misc fields here XXX */
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} else {
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if (value)
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PQescapeStringConn(conn, escapebuf, value, strlen(value), NULL);
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else
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escapebuf[0] = '\0';
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LENGTHEN_BUF2(strlen(escapebuf) + 2);
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lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "'%s'", escapebuf);
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}
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}
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LENGTHEN_BUF2(1);
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strcat(sql2 + lensql2, ",");
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lensql2++;
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}
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AST_RWLIST_UNLOCK(&psql_columns);
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LENGTHEN_BUF1(lensql2);
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sql[lensql - 1] = ')';
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sql2[lensql2 - 1] = ')';
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strcat(sql + lensql, sql2);
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ast_verb(11, "[%s]\n", sql);
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ast_debug(2, "inserting a CDR record.\n");
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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, "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, "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, "Unable to reconnect to database server %s. Calls will not be logged!\n", pghostname);
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ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
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PQfinish(conn);
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conn = NULL;
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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, sql);
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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, "Failed to insert call detail record into database!\n");
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ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
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ast_log(LOG_ERROR, "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, "Connection reestablished.\n");
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connected = 1;
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PQclear(result);
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result = PQexec(conn, sql);
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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, "HARD ERROR! Attempted reconnection failed. DROPPING CALL RECORD!\n");
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ast_log(LOG_ERROR, "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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PQclear(result);
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return -1;
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}
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PQclear(result);
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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 int unload_module(void)
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{
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struct columns *current;
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ast_cdr_unregister(name);
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/* Give all threads time to finish */
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usleep(1);
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PQfinish(conn);
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if (pghostname)
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ast_free(pghostname);
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if (pgdbname)
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ast_free(pgdbname);
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if (pgdbuser)
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ast_free(pgdbuser);
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if (pgpassword)
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ast_free(pgpassword);
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if (pgdbport)
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ast_free(pgdbport);
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if (table)
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ast_free(table);
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AST_RWLIST_WRLOCK(&psql_columns);
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while ((current = AST_RWLIST_REMOVE_HEAD(&psql_columns, list))) {
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ast_free(current);
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}
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AST_RWLIST_UNLOCK(&psql_columns);
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return 0;
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}
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static int config_module(int reload)
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{
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struct ast_variable *var;
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char *pgerror;
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struct columns *cur;
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PGresult *result;
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const char *tmp;
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struct ast_config *cfg;
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struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
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if ((cfg = ast_config_load(config, config_flags)) == NULL) {
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ast_log(LOG_WARNING, "Unable to load config for PostgreSQL CDR's: %s\n", config);
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return -1;
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} else if (cfg == CONFIG_STATUS_FILEUNCHANGED)
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return 0;
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if (!(var = ast_variable_browse(cfg, "global"))) {
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ast_config_destroy(cfg);
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return 0;
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}
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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)
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ast_free(pghostname);
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if (!(pghostname = ast_strdup(tmp))) {
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ast_config_destroy(cfg);
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return -1;
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}
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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)
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ast_free(pgdbname);
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if (!(pgdbname = ast_strdup(tmp))) {
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ast_config_destroy(cfg);
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return -1;
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}
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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)
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ast_free(pgdbuser);
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if (!(pgdbuser = ast_strdup(tmp))) {
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ast_config_destroy(cfg);
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return -1;
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}
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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)
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ast_free(pgpassword);
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if (!(pgpassword = ast_strdup(tmp))) {
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ast_config_destroy(cfg);
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return -1;
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}
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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)
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ast_free(pgdbport);
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if (!(pgdbport = ast_strdup(tmp))) {
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ast_config_destroy(cfg);
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return -1;
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}
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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)
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ast_free(table);
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if (!(table = ast_strdup(tmp))) {
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ast_config_destroy(cfg);
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return -1;
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}
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if (option_debug) {
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if (ast_strlen_zero(pghostname)) {
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ast_debug(1, "using default unix socket\n");
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} else {
|
|
ast_debug(1, "got hostname of %s\n", pghostname);
|
|
}
|
|
ast_debug(1, "got port of %s\n", pgdbport);
|
|
ast_debug(1, "got user of %s\n", pgdbuser);
|
|
ast_debug(1, "got dbname of %s\n", pgdbname);
|
|
ast_debug(1, "got password of %s\n", pgpassword);
|
|
ast_debug(1, "got sql table name of %s\n", table);
|
|
}
|
|
|
|
conn = PQsetdbLogin(pghostname, pgdbport, NULL, NULL, pgdbname, pgdbuser, pgpassword);
|
|
if (PQstatus(conn) != CONNECTION_BAD) {
|
|
char sqlcmd[512];
|
|
char *fname, *ftype, *flen, *fnotnull, *fdef;
|
|
int i, rows;
|
|
ast_debug(1, "Successfully connected to PostgreSQL database.\n");
|
|
connected = 1;
|
|
|
|
/* Query the columns */
|
|
snprintf(sqlcmd, sizeof(sqlcmd), "select a.attname, t.typname, a.attlen, a.attnotnull, d.adsrc from pg_class c, pg_type t, pg_attribute a left outer join pg_attrdef d on a.atthasdef and d.adrelid = a.attrelid and d.adnum = a.attnum where c.oid = a.attrelid and a.atttypid = t.oid and (a.attnum > 0) and c.relname = '%s' order by c.relname, attnum", table);
|
|
result = PQexec(conn, sqlcmd);
|
|
if (PQresultStatus(result) != PGRES_TUPLES_OK) {
|
|
pgerror = PQresultErrorMessage(result);
|
|
ast_log(LOG_ERROR, "Failed to query database columns: %s\n", pgerror);
|
|
PQclear(result);
|
|
unload_module();
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
|
|
rows = PQntuples(result);
|
|
for (i = 0; i < rows; i++) {
|
|
fname = PQgetvalue(result, i, 0);
|
|
ftype = PQgetvalue(result, i, 1);
|
|
flen = PQgetvalue(result, i, 2);
|
|
fnotnull = PQgetvalue(result, i, 3);
|
|
fdef = PQgetvalue(result, i, 4);
|
|
ast_verb(4, "Found column '%s' of type '%s'\n", fname, ftype);
|
|
cur = ast_calloc(1, sizeof(*cur) + strlen(fname) + strlen(ftype) + 2);
|
|
if (cur) {
|
|
sscanf(flen, "%d", &cur->len);
|
|
cur->name = (char *)cur + sizeof(*cur);
|
|
cur->type = (char *)cur + sizeof(*cur) + strlen(fname) + 1;
|
|
strcpy(cur->name, fname);
|
|
strcpy(cur->type, ftype);
|
|
if (*fnotnull == 't') {
|
|
cur->notnull = 1;
|
|
} else {
|
|
cur->notnull = 0;
|
|
}
|
|
if (!ast_strlen_zero(fdef)) {
|
|
cur->hasdefault = 1;
|
|
} else {
|
|
cur->hasdefault = 0;
|
|
}
|
|
AST_RWLIST_INSERT_TAIL(&psql_columns, cur, list);
|
|
}
|
|
}
|
|
PQclear(result);
|
|
} else {
|
|
pgerror = PQerrorMessage(conn);
|
|
ast_log(LOG_ERROR, "Unable to connect to database server %s. CALLS WILL NOT BE LOGGED!!\n", pghostname);
|
|
ast_log(LOG_ERROR, "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,
|
|
);
|