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/* pgsql-error.c -- PostgreSQL database driver for eurephia
*
* GPLv2 only - Copyright (C) 2012
* David Sommerseth <dazo@users.sourceforge.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; version 2
* of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/**
* @file pgsql-error.c
* @author David Sommerseth <dazo@users.sourceforge.net>
* @date 2012-01-15
*
* @brief eurephia database driver for the PostgreSQL database.
* Shared functions for the PostgreSQL driver
*
*/
#include <string.h>
#include <stdarg.h>
#include <libpq-fe.h>
#ifdef HAVE_LIBXML2
#include <libxml/tree.h>
#endif
#include <eurephia_nullsafe.h>
#include <eurephia_context.h>
#include <eurephia_log.h>
#include "prepared-sql.h"
char *ePGgetValue(PGresult *res, int row, int col)
{
if( (res == NULL) || (PQgetisnull(res, row, col) == 1) ) {
return NULL;
} else {
// FIXME: should we check if we have the row number accesible first? row > PQntuples()
return PQgetvalue(res, row, col);
}
}
int ePGgetValue_bool(PGresult *res, int row, int col)
{
if( (res == NULL) || (PQgetisnull(res, row, col) == 1) ) {
return 0;
} else {
// FIXME: should we check if we have the row number accesible first? row > PQntuples()
char *str = PQgetvalue(res, row, col);
return (str[0] == 't' ? 1 : 0);
}
}
void __ePGerrorMessage(eurephiaCTX *ctx, PGresult *dbr, int logdst, int loglvl,
ePG_prepID prepid, const char *errfile, const long errline,
const char *fmt, ...)
{
char msgfmt[514];
va_list ap;
memset(&msgfmt, 0, 514);
va_start(ap, fmt);
if( prepid != PREPSQL_NONE ) {
snprintf(msgfmt, 512, "[%s] SQL query failed: %s %s: %s",
ePGprepStatementGetName(ctx, prepid),
(dbr != NULL ? PQresStatus(PQresultStatus(dbr)) : ""), fmt,
(dbr != NULL ? PQresultErrorMessage(dbr)
: (ctx->dbc != NULL ? PQerrorMessage(ctx->dbc->dbhandle)
: "[unknown error]")
));
} else {
snprintf(msgfmt, 512, "SQL query failed: %s %s: %s",
(dbr != NULL ? PQresStatus(PQresultStatus(dbr)) : ""),
fmt,
(dbr != NULL ? PQresultErrorMessage(dbr)
: (ctx->dbc != NULL ? PQerrorMessage(ctx->dbc->dbhandle)
: "[unknown error]")
));
}
#ifdef ENABLE_DEBUG
_veurephia_log_func(ctx, logdst, loglvl, errfile, errline, ap, msgfmt);
#else
veurephia_log(ctx, logdst, loglvl, ap, msgfmt);
#endif
va_end(ap);
memset(&msgfmt, 0, 514);
if( dbr ) {
PQclear(dbr);
}
if( (loglvl == LOG_EMERG) && (ctx->dbc != NULL)
&& (PQstatus(ctx->dbc->dbhandle) != CONNECTION_OK) ) {
PQfinish(ctx->dbc->dbhandle);
}
}
#ifdef HAVE_LIBXML2
xmlNode * __ePGerrorMessageXML(eurephiaCTX *ctx, PGresult *dbr, int logdst,
ePG_prepID prepid, const char *errfile, const long errline)
{
xmlNode *ret_n = NULL;
ret_n = xmlNewNode(NULL, (xmlChar *) "SQLError");
if( ret_n != NULL ) {
xmlNode *err_n = NULL;
xmlChar *errstr = NULL;
xmlNewProp(ret_n, (xmlChar *) "driver", (xmlChar *) "edb-sqlite.so");
#ifdef ENABLE_DEBUG
{
xmlNode *dbg_n = xmlNewNode(NULL, (xmlChar *) "debug");
xmlChar linestr[10];
xmlStrPrintf(linestr, 8, (xmlChar *) "%u", errline);
xmlNewProp(dbg_n, (xmlChar *) "file", (xmlChar *) errfile);
xmlNewProp(dbg_n, (xmlChar *) "line", linestr);
xmlAddChild(ret_n, dbg_n);
}
#endif
errstr = xmlCharStrdup(dbr != NULL ? PQresultErrorMessage(dbr)
: (ctx->dbc != NULL ? PQerrorMessage(ctx->dbc->dbhandle)
: "[unknown error]"));
err_n = xmlNewTextChild(ret_n, NULL, (xmlChar *) "ErrorMessage", errstr);
if( prepid != PREPSQL_NONE ) {
xmlNewProp(err_n, (xmlChar *) "prepstatement",
(xmlChar *) ePGprepStatementGetName(ctx, prepid));
}
if( dbr != NULL ) {
xmlNewProp(err_n, (xmlChar *) "resultstatus",
(xmlChar *) PQresStatus(PQresultStatus(dbr)));
} else {
xmlNewProp(err_n, (xmlChar *) "resultstatus",
(xmlChar *) "(unknown/NULL)");
}
xmlNewProp(err_n, (xmlChar *) "severity", (xmlChar *) eurephia_logPrioString(logdst));
free_nullsafe(NULL, errstr);
}
if( dbr ) {
PQclear(dbr);
}
if( (logdst == LOG_EMERG) && (ctx->dbc != NULL)
&& (PQstatus(ctx->dbc->dbhandle) != CONNECTION_OK) ) {
PQfinish(ctx->dbc->dbhandle);
}
return ret_n;
}
#endif
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