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1080 lines
30 KiB
1080 lines
30 KiB
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* Copyright (C) 2004 - 2005 Anthony Minessale II <anthmct@yahoo.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 odbc+odbc plugin for portable configuration engine
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*
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* \author Mark Spencer <markster@digium.com>
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* \author Anthony Minessale II <anthmct@yahoo.com>
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*
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* \arg http://www.unixodbc.org
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*/
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/*** MODULEINFO
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<depend>res_odbc</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 "asterisk/file.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/config.h"
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#include "asterisk/module.h"
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#include "asterisk/lock.h"
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#include "asterisk/res_odbc.h"
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#include "asterisk/utils.h"
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AST_THREADSTORAGE(sql_buf);
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struct custom_prepare_struct {
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const char *sql;
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const char *extra;
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va_list ap;
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unsigned long long skip;
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};
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static SQLHSTMT custom_prepare(struct odbc_obj *obj, void *data)
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{
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int res, x = 1, count = 0;
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struct custom_prepare_struct *cps = data;
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const char *newparam, *newval;
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SQLHSTMT stmt;
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va_list ap;
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va_copy(ap, cps->ap);
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res = SQLAllocHandle(SQL_HANDLE_STMT, obj->con, &stmt);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Alloc Handle failed!\n");
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return NULL;
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}
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ast_debug(1, "Skip: %lld; SQL: %s\n", cps->skip, cps->sql);
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res = SQLPrepare(stmt, (unsigned char *)cps->sql, SQL_NTS);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Prepare failed![%s]\n", cps->sql);
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SQLFreeHandle (SQL_HANDLE_STMT, stmt);
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return NULL;
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}
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while ((newparam = va_arg(ap, const char *))) {
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newval = va_arg(ap, const char *);
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if ((1LL << count++) & cps->skip) {
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ast_debug(1, "Skipping field '%s'='%s' (%llo/%llo)\n", newparam, newval, 1LL << (count - 1), cps->skip);
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continue;
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}
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ast_debug(1, "Parameter %d ('%s') = '%s'\n", x, newparam, newval);
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SQLBindParameter(stmt, x++, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, strlen(newval), 0, (void *)newval, 0, NULL);
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}
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va_end(ap);
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if (!ast_strlen_zero(cps->extra))
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SQLBindParameter(stmt, x++, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, strlen(cps->extra), 0, (void *)cps->extra, 0, NULL);
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return stmt;
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}
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/*!
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* \brief Excute an SQL query and return ast_variable list
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* \param database
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* \param table
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* \param ap list containing one or more field/operator/value set.
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*
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* Select database and preform query on table, prepare the sql statement
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* Sub-in the values to the prepared statement and execute it. Return results
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* as a ast_variable list.
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*
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* \retval var on success
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* \retval NULL on failure
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*/
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static struct ast_variable *realtime_odbc(const char *database, const char *table, va_list ap)
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{
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struct odbc_obj *obj;
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SQLHSTMT stmt;
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char sql[1024];
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char coltitle[256];
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char rowdata[2048];
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char *op;
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const char *newparam, *newval;
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char *stringp;
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char *chunk;
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SQLSMALLINT collen;
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int res;
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int x;
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struct ast_variable *var=NULL, *prev=NULL;
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SQLULEN colsize;
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SQLSMALLINT colcount=0;
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SQLSMALLINT datatype;
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SQLSMALLINT decimaldigits;
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SQLSMALLINT nullable;
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SQLLEN indicator;
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va_list aq;
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struct custom_prepare_struct cps = { .sql = sql };
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va_copy(cps.ap, ap);
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va_copy(aq, ap);
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if (!table)
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return NULL;
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obj = ast_odbc_request_obj(database, 0);
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if (!obj) {
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ast_log(LOG_ERROR, "No database handle available with the name of '%s' (check res_odbc.conf)\n", database);
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return NULL;
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}
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newparam = va_arg(aq, const char *);
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if (!newparam) {
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ast_odbc_release_obj(obj);
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return NULL;
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}
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newval = va_arg(aq, const char *);
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op = !strchr(newparam, ' ') ? " =" : "";
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snprintf(sql, sizeof(sql), "SELECT * FROM %s WHERE %s%s ?%s", table, newparam, op,
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strcasestr(newparam, "LIKE") && !ast_odbc_backslash_is_escape(obj) ? " ESCAPE '\\'" : "");
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while((newparam = va_arg(aq, const char *))) {
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op = !strchr(newparam, ' ') ? " =" : "";
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snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " AND %s%s ?%s", newparam, op,
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strcasestr(newparam, "LIKE") && !ast_odbc_backslash_is_escape(obj) ? " ESCAPE '\\'" : "");
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newval = va_arg(aq, const char *);
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}
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va_end(aq);
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stmt = ast_odbc_prepare_and_execute(obj, custom_prepare, &cps);
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if (!stmt) {
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ast_odbc_release_obj(obj);
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return NULL;
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}
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res = SQLNumResultCols(stmt, &colcount);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Column Count error!\n[%s]\n\n", sql);
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SQLFreeHandle (SQL_HANDLE_STMT, stmt);
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ast_odbc_release_obj(obj);
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return NULL;
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}
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res = SQLFetch(stmt);
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if (res == SQL_NO_DATA) {
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SQLFreeHandle (SQL_HANDLE_STMT, stmt);
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ast_odbc_release_obj(obj);
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return NULL;
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}
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Fetch error!\n[%s]\n\n", sql);
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SQLFreeHandle (SQL_HANDLE_STMT, stmt);
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ast_odbc_release_obj(obj);
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return NULL;
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}
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for (x = 0; x < colcount; x++) {
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rowdata[0] = '\0';
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collen = sizeof(coltitle);
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res = SQLDescribeCol(stmt, x + 1, (unsigned char *)coltitle, sizeof(coltitle), &collen,
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&datatype, &colsize, &decimaldigits, &nullable);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Describe Column error!\n[%s]\n\n", sql);
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if (var)
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ast_variables_destroy(var);
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ast_odbc_release_obj(obj);
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return NULL;
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}
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indicator = 0;
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res = SQLGetData(stmt, x + 1, SQL_CHAR, rowdata, sizeof(rowdata), &indicator);
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if (indicator == SQL_NULL_DATA)
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rowdata[0] = '\0';
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else if (ast_strlen_zero(rowdata)) {
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/* Because we encode the empty string for a NULL, we will encode
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* actual empty strings as a string containing a single whitespace. */
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ast_copy_string(rowdata, " ", sizeof(rowdata));
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}
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Get Data error!\n[%s]\n\n", sql);
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if (var)
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ast_variables_destroy(var);
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ast_odbc_release_obj(obj);
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return NULL;
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}
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stringp = rowdata;
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while(stringp) {
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chunk = strsep(&stringp, ";");
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if (!ast_strlen_zero(ast_strip(chunk))) {
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if (prev) {
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prev->next = ast_variable_new(coltitle, chunk, "");
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if (prev->next)
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prev = prev->next;
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} else
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prev = var = ast_variable_new(coltitle, chunk, "");
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}
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}
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}
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SQLFreeHandle(SQL_HANDLE_STMT, stmt);
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ast_odbc_release_obj(obj);
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return var;
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}
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/*!
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* \brief Excute an Select query and return ast_config list
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* \param database
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* \param table
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* \param ap list containing one or more field/operator/value set.
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*
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* Select database and preform query on table, prepare the sql statement
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* Sub-in the values to the prepared statement and execute it.
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* Execute this prepared query against several ODBC connected databases.
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* Return results as an ast_config variable.
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*
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* \retval var on success
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* \retval NULL on failure
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*/
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static struct ast_config *realtime_multi_odbc(const char *database, const char *table, va_list ap)
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{
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struct odbc_obj *obj;
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SQLHSTMT stmt;
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char sql[1024];
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char coltitle[256];
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char rowdata[2048];
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const char *initfield=NULL;
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char *op;
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const char *newparam, *newval;
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char *stringp;
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char *chunk;
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SQLSMALLINT collen;
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int res;
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int x;
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struct ast_variable *var=NULL;
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struct ast_config *cfg=NULL;
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struct ast_category *cat=NULL;
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SQLULEN colsize;
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SQLSMALLINT colcount=0;
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SQLSMALLINT datatype;
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SQLSMALLINT decimaldigits;
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SQLSMALLINT nullable;
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SQLLEN indicator;
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struct custom_prepare_struct cps = { .sql = sql };
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va_list aq;
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va_copy(cps.ap, ap);
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va_copy(aq, ap);
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if (!table)
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return NULL;
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obj = ast_odbc_request_obj(database, 0);
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if (!obj)
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return NULL;
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newparam = va_arg(aq, const char *);
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if (!newparam) {
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ast_odbc_release_obj(obj);
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return NULL;
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}
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initfield = ast_strdupa(newparam);
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if ((op = strchr(initfield, ' ')))
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*op = '\0';
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newval = va_arg(aq, const char *);
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op = !strchr(newparam, ' ') ? " =" : "";
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snprintf(sql, sizeof(sql), "SELECT * FROM %s WHERE %s%s ?%s", table, newparam, op,
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strcasestr(newparam, "LIKE") && !ast_odbc_backslash_is_escape(obj) ? " ESCAPE '\\'" : "");
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while((newparam = va_arg(aq, const char *))) {
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op = !strchr(newparam, ' ') ? " =" : "";
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snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " AND %s%s ?%s", newparam, op,
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strcasestr(newparam, "LIKE") && !ast_odbc_backslash_is_escape(obj) ? " ESCAPE '\\'" : "");
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newval = va_arg(aq, const char *);
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}
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if (initfield)
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snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " ORDER BY %s", initfield);
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va_end(aq);
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stmt = ast_odbc_prepare_and_execute(obj, custom_prepare, &cps);
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if (!stmt) {
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ast_odbc_release_obj(obj);
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return NULL;
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}
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res = SQLNumResultCols(stmt, &colcount);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Column Count error!\n[%s]\n\n", sql);
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SQLFreeHandle(SQL_HANDLE_STMT, stmt);
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ast_odbc_release_obj(obj);
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return NULL;
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}
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cfg = ast_config_new();
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if (!cfg) {
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ast_log(LOG_WARNING, "Out of memory!\n");
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SQLFreeHandle(SQL_HANDLE_STMT, stmt);
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ast_odbc_release_obj(obj);
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return NULL;
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}
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while ((res=SQLFetch(stmt)) != SQL_NO_DATA) {
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var = NULL;
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Fetch error!\n[%s]\n\n", sql);
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continue;
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}
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cat = ast_category_new("","",99999);
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if (!cat) {
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ast_log(LOG_WARNING, "Out of memory!\n");
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continue;
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}
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for (x=0;x<colcount;x++) {
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rowdata[0] = '\0';
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collen = sizeof(coltitle);
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res = SQLDescribeCol(stmt, x + 1, (unsigned char *)coltitle, sizeof(coltitle), &collen,
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&datatype, &colsize, &decimaldigits, &nullable);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Describe Column error!\n[%s]\n\n", sql);
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ast_category_destroy(cat);
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continue;
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}
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indicator = 0;
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res = SQLGetData(stmt, x + 1, SQL_CHAR, rowdata, sizeof(rowdata), &indicator);
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if (indicator == SQL_NULL_DATA)
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continue;
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Get Data error!\n[%s]\n\n", sql);
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ast_category_destroy(cat);
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continue;
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}
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stringp = rowdata;
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while(stringp) {
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chunk = strsep(&stringp, ";");
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if (!ast_strlen_zero(ast_strip(chunk))) {
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if (initfield && !strcmp(initfield, coltitle))
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ast_category_rename(cat, chunk);
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var = ast_variable_new(coltitle, chunk, "");
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ast_variable_append(cat, var);
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}
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}
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}
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ast_category_append(cfg, cat);
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}
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SQLFreeHandle(SQL_HANDLE_STMT, stmt);
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ast_odbc_release_obj(obj);
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return cfg;
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}
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/*!
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* \brief Excute an UPDATE query
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* \param database
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* \param table
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* \param keyfield where clause field
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* \param lookup value of field for where clause
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* \param ap list containing one or more field/value set(s).
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*
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* Update a database table, prepare the sql statement using keyfield and lookup
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* control the number of records to change. All values to be changed are stored in ap list.
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* Sub-in the values to the prepared statement and execute it.
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*
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* \retval number of rows affected
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* \retval -1 on failure
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*/
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static int update_odbc(const char *database, const char *table, const char *keyfield, const char *lookup, va_list ap)
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{
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struct odbc_obj *obj;
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SQLHSTMT stmt;
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char sql[256];
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SQLLEN rowcount=0;
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const char *newparam, *newval;
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int res, count = 1;
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va_list aq;
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struct custom_prepare_struct cps = { .sql = sql, .extra = lookup };
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struct odbc_cache_tables *tableptr = ast_odbc_find_table(database, table);
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struct odbc_cache_columns *column;
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va_copy(cps.ap, ap);
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va_copy(aq, ap);
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if (!table) {
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ast_odbc_release_table(tableptr);
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return -1;
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}
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obj = ast_odbc_request_obj(database, 0);
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if (!obj) {
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ast_odbc_release_table(tableptr);
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return -1;
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}
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newparam = va_arg(aq, const char *);
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if (!newparam) {
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ast_odbc_release_obj(obj);
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ast_odbc_release_table(tableptr);
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return -1;
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}
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newval = va_arg(aq, const char *);
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if (tableptr && !(column = ast_odbc_find_column(tableptr, newparam))) {
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ast_log(LOG_WARNING, "Key field '%s' does not exist in table '%s@%s'. Update will fail\n", newparam, table, database);
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}
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snprintf(sql, sizeof(sql), "UPDATE %s SET %s=?", table, newparam);
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while((newparam = va_arg(aq, const char *))) {
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newval = va_arg(aq, const char *);
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if ((tableptr && (column = ast_odbc_find_column(tableptr, newparam))) || count > 63) {
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snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), ", %s=?", newparam);
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} else { /* the column does not exist in the table */
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cps.skip |= (1LL << count);
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}
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count++;
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}
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va_end(aq);
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snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " WHERE %s=?", keyfield);
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ast_odbc_release_table(tableptr);
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stmt = ast_odbc_prepare_and_execute(obj, custom_prepare, &cps);
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if (!stmt) {
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ast_odbc_release_obj(obj);
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return -1;
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}
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res = SQLRowCount(stmt, &rowcount);
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SQLFreeHandle (SQL_HANDLE_STMT, stmt);
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ast_odbc_release_obj(obj);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "SQL Row Count error!\n[%s]\n\n", sql);
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return -1;
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}
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if (rowcount >= 0)
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return (int)rowcount;
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return -1;
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}
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struct update2_prepare_struct {
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const char *database;
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const char *table;
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va_list ap;
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};
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static SQLHSTMT update2_prepare(struct odbc_obj *obj, void *data)
|
|
{
|
|
int res, x = 1, first = 1;
|
|
struct update2_prepare_struct *ups = data;
|
|
const char *newparam, *newval;
|
|
struct ast_str *sql = ast_str_thread_get(&sql_buf, 16);
|
|
SQLHSTMT stmt;
|
|
va_list ap;
|
|
struct odbc_cache_tables *tableptr = ast_odbc_find_table(ups->database, ups->table);
|
|
struct odbc_cache_columns *column;
|
|
|
|
if (!sql) {
|
|
if (tableptr) {
|
|
ast_odbc_release_table(tableptr);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
if (!tableptr) {
|
|
ast_log(LOG_ERROR, "Could not retrieve metadata for table '%s@%s'. Update will fail!\n", ups->table, ups->database);
|
|
return NULL;
|
|
}
|
|
|
|
res = SQLAllocHandle(SQL_HANDLE_STMT, obj->con, &stmt);
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
ast_log(LOG_WARNING, "SQL Alloc Handle failed!\n");
|
|
ast_odbc_release_table(tableptr);
|
|
return NULL;
|
|
}
|
|
|
|
ast_str_set(&sql, 0, "UPDATE %s SET ", ups->table);
|
|
|
|
/* Start by finding the second set of parameters */
|
|
va_copy(ap, ups->ap);
|
|
|
|
while ((newparam = va_arg(ap, const char *))) {
|
|
newval = va_arg(ap, const char *);
|
|
}
|
|
|
|
while ((newparam = va_arg(ap, const char *))) {
|
|
newval = va_arg(ap, const char *);
|
|
if ((column = ast_odbc_find_column(tableptr, newparam))) {
|
|
ast_str_append(&sql, 0, "%s%s=? ", first ? "" : ", ", newparam);
|
|
SQLBindParameter(stmt, x++, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, strlen(newval), 0, (void *)newval, 0, NULL);
|
|
first = 0;
|
|
} else {
|
|
ast_log(LOG_NOTICE, "Not updating column '%s' in '%s@%s' because that column does not exist!\n", newparam, ups->table, ups->database);
|
|
}
|
|
}
|
|
va_end(ap);
|
|
|
|
/* Restart search, because we need to add the search parameters */
|
|
va_copy(ap, ups->ap);
|
|
ast_str_append(&sql, 0, "WHERE");
|
|
first = 1;
|
|
|
|
while ((newparam = va_arg(ap, const char *))) {
|
|
newval = va_arg(ap, const char *);
|
|
if (!(column = ast_odbc_find_column(tableptr, newparam))) {
|
|
ast_log(LOG_ERROR, "One or more of the criteria columns '%s' on '%s@%s' for this update does not exist!\n", newparam, ups->table, ups->database);
|
|
ast_odbc_release_table(tableptr);
|
|
SQLFreeHandle(SQL_HANDLE_STMT, stmt);
|
|
return NULL;
|
|
}
|
|
ast_str_append(&sql, 0, "%s %s=?", first ? "" : " AND", newparam);
|
|
SQLBindParameter(stmt, x++, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, strlen(newval), 0, (void *)newval, 0, NULL);
|
|
first = 0;
|
|
}
|
|
va_end(ap);
|
|
|
|
/* Done with the table metadata */
|
|
ast_odbc_release_table(tableptr);
|
|
|
|
res = SQLPrepare(stmt, (unsigned char *)ast_str_buffer(sql), SQL_NTS);
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
ast_log(LOG_WARNING, "SQL Prepare failed![%s]\n", ast_str_buffer(sql));
|
|
SQLFreeHandle(SQL_HANDLE_STMT, stmt);
|
|
return NULL;
|
|
}
|
|
|
|
return stmt;
|
|
}
|
|
|
|
/*!
|
|
* \brief Execute an UPDATE query
|
|
* \param database
|
|
* \param table
|
|
* \param ap list containing one or more field/value set(s).
|
|
*
|
|
* Update a database table, preparing the sql statement from a list of
|
|
* key/value pairs specified in ap. The lookup pairs are specified first
|
|
* and are separated from the update pairs by a sentinel value.
|
|
* Sub-in the values to the prepared statement and execute it.
|
|
*
|
|
* \retval number of rows affected
|
|
* \retval -1 on failure
|
|
*/
|
|
static int update2_odbc(const char *database, const char *table, va_list ap)
|
|
{
|
|
struct odbc_obj *obj;
|
|
SQLHSTMT stmt;
|
|
struct update2_prepare_struct ups = { .database = database, .table = table, };
|
|
struct ast_str *sql;
|
|
int res;
|
|
SQLLEN rowcount = 0;
|
|
|
|
va_copy(ups.ap, ap);
|
|
|
|
if (!(obj = ast_odbc_request_obj(database, 0))) {
|
|
return -1;
|
|
}
|
|
|
|
if (!(stmt = ast_odbc_prepare_and_execute(obj, update2_prepare, &ups))) {
|
|
ast_odbc_release_obj(obj);
|
|
return -1;
|
|
}
|
|
|
|
res = SQLRowCount(stmt, &rowcount);
|
|
SQLFreeHandle(SQL_HANDLE_STMT, stmt);
|
|
ast_odbc_release_obj(obj);
|
|
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
/* Since only a single thread can access this memory, we can retrieve what would otherwise be lost. */
|
|
sql = ast_str_thread_get(&sql_buf, 16);
|
|
ast_log(LOG_WARNING, "SQL Row Count error!\n[%s]\n", ast_str_buffer(sql));
|
|
return -1;
|
|
}
|
|
|
|
if (rowcount >= 0) {
|
|
return (int)rowcount;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*!
|
|
* \brief Excute an INSERT query
|
|
* \param database
|
|
* \param table
|
|
* \param ap list containing one or more field/value set(s)
|
|
*
|
|
* Insert a new record into database table, prepare the sql statement.
|
|
* All values to be changed are stored in ap list.
|
|
* Sub-in the values to the prepared statement and execute it.
|
|
*
|
|
* \retval number of rows affected
|
|
* \retval -1 on failure
|
|
*/
|
|
static int store_odbc(const char *database, const char *table, va_list ap)
|
|
{
|
|
struct odbc_obj *obj;
|
|
SQLHSTMT stmt;
|
|
char sql[256];
|
|
char keys[256];
|
|
char vals[256];
|
|
SQLLEN rowcount=0;
|
|
const char *newparam, *newval;
|
|
int res;
|
|
va_list aq;
|
|
struct custom_prepare_struct cps = { .sql = sql, .extra = NULL };
|
|
|
|
va_copy(cps.ap, ap);
|
|
va_copy(aq, ap);
|
|
|
|
if (!table)
|
|
return -1;
|
|
|
|
obj = ast_odbc_request_obj(database, 0);
|
|
if (!obj)
|
|
return -1;
|
|
|
|
newparam = va_arg(aq, const char *);
|
|
if (!newparam) {
|
|
ast_odbc_release_obj(obj);
|
|
return -1;
|
|
}
|
|
newval = va_arg(aq, const char *);
|
|
snprintf(keys, sizeof(keys), "%s", newparam);
|
|
ast_copy_string(vals, "?", sizeof(vals));
|
|
while ((newparam = va_arg(aq, const char *))) {
|
|
snprintf(keys + strlen(keys), sizeof(keys) - strlen(keys), ", %s", newparam);
|
|
snprintf(vals + strlen(vals), sizeof(vals) - strlen(vals), ", ?");
|
|
newval = va_arg(aq, const char *);
|
|
}
|
|
va_end(aq);
|
|
snprintf(sql, sizeof(sql), "INSERT INTO %s (%s) VALUES (%s)", table, keys, vals);
|
|
|
|
stmt = ast_odbc_prepare_and_execute(obj, custom_prepare, &cps);
|
|
|
|
if (!stmt) {
|
|
ast_odbc_release_obj(obj);
|
|
return -1;
|
|
}
|
|
|
|
res = SQLRowCount(stmt, &rowcount);
|
|
SQLFreeHandle (SQL_HANDLE_STMT, stmt);
|
|
ast_odbc_release_obj(obj);
|
|
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
ast_log(LOG_WARNING, "SQL Row Count error!\n[%s]\n\n", sql);
|
|
return -1;
|
|
}
|
|
|
|
if (rowcount >= 0)
|
|
return (int)rowcount;
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*!
|
|
* \brief Excute an DELETE query
|
|
* \param database
|
|
* \param table
|
|
* \param keyfield where clause field
|
|
* \param lookup value of field for where clause
|
|
* \param ap list containing one or more field/value set(s)
|
|
*
|
|
* Delete a row from a database table, prepare the sql statement using keyfield and lookup
|
|
* control the number of records to change. Additional params to match rows are stored in ap list.
|
|
* Sub-in the values to the prepared statement and execute it.
|
|
*
|
|
* \retval number of rows affected
|
|
* \retval -1 on failure
|
|
*/
|
|
static int destroy_odbc(const char *database, const char *table, const char *keyfield, const char *lookup, va_list ap)
|
|
{
|
|
struct odbc_obj *obj;
|
|
SQLHSTMT stmt;
|
|
char sql[256];
|
|
SQLLEN rowcount=0;
|
|
const char *newparam, *newval;
|
|
int res;
|
|
va_list aq;
|
|
struct custom_prepare_struct cps = { .sql = sql, .extra = lookup };
|
|
|
|
va_copy(cps.ap, ap);
|
|
va_copy(aq, ap);
|
|
|
|
if (!table)
|
|
return -1;
|
|
|
|
obj = ast_odbc_request_obj(database, 0);
|
|
if (!obj)
|
|
return -1;
|
|
|
|
snprintf(sql, sizeof(sql), "DELETE FROM %s WHERE ", table);
|
|
while((newparam = va_arg(aq, const char *))) {
|
|
snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), "%s=? AND ", newparam);
|
|
newval = va_arg(aq, const char *);
|
|
}
|
|
va_end(aq);
|
|
snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), "%s=?", keyfield);
|
|
|
|
stmt = ast_odbc_prepare_and_execute(obj, custom_prepare, &cps);
|
|
|
|
if (!stmt) {
|
|
ast_odbc_release_obj(obj);
|
|
return -1;
|
|
}
|
|
|
|
res = SQLRowCount(stmt, &rowcount);
|
|
SQLFreeHandle (SQL_HANDLE_STMT, stmt);
|
|
ast_odbc_release_obj(obj);
|
|
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
ast_log(LOG_WARNING, "SQL Row Count error!\n[%s]\n\n", sql);
|
|
return -1;
|
|
}
|
|
|
|
if (rowcount >= 0)
|
|
return (int)rowcount;
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
struct config_odbc_obj {
|
|
char *sql;
|
|
unsigned long cat_metric;
|
|
char category[128];
|
|
char var_name[128];
|
|
char var_val[1024]; /* changed from 128 to 1024 via bug 8251 */
|
|
SQLLEN err;
|
|
};
|
|
|
|
static SQLHSTMT config_odbc_prepare(struct odbc_obj *obj, void *data)
|
|
{
|
|
struct config_odbc_obj *q = data;
|
|
SQLHSTMT sth;
|
|
int res;
|
|
|
|
res = SQLAllocHandle(SQL_HANDLE_STMT, obj->con, &sth);
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
ast_verb(4, "Failure in AllocStatement %d\n", res);
|
|
return NULL;
|
|
}
|
|
|
|
res = SQLPrepare(sth, (unsigned char *)q->sql, SQL_NTS);
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
ast_verb(4, "Error in PREPARE %d\n", res);
|
|
SQLFreeHandle(SQL_HANDLE_STMT, sth);
|
|
return NULL;
|
|
}
|
|
|
|
SQLBindCol(sth, 1, SQL_C_ULONG, &q->cat_metric, sizeof(q->cat_metric), &q->err);
|
|
SQLBindCol(sth, 2, SQL_C_CHAR, q->category, sizeof(q->category), &q->err);
|
|
SQLBindCol(sth, 3, SQL_C_CHAR, q->var_name, sizeof(q->var_name), &q->err);
|
|
SQLBindCol(sth, 4, SQL_C_CHAR, q->var_val, sizeof(q->var_val), &q->err);
|
|
|
|
return sth;
|
|
}
|
|
|
|
static struct ast_config *config_odbc(const char *database, const char *table, const char *file, struct ast_config *cfg, struct ast_flags flags, const char *sugg_incl, const char *who_asked)
|
|
{
|
|
struct ast_variable *new_v;
|
|
struct ast_category *cur_cat;
|
|
int res = 0;
|
|
struct odbc_obj *obj;
|
|
char sqlbuf[1024] = "";
|
|
char *sql = sqlbuf;
|
|
size_t sqlleft = sizeof(sqlbuf);
|
|
unsigned int last_cat_metric = 0;
|
|
SQLSMALLINT rowcount = 0;
|
|
SQLHSTMT stmt;
|
|
char last[128] = "";
|
|
struct config_odbc_obj q;
|
|
struct ast_flags loader_flags = { 0 };
|
|
|
|
memset(&q, 0, sizeof(q));
|
|
|
|
if (!file || !strcmp (file, "res_config_odbc.conf"))
|
|
return NULL; /* cant configure myself with myself ! */
|
|
|
|
obj = ast_odbc_request_obj(database, 0);
|
|
if (!obj)
|
|
return NULL;
|
|
|
|
ast_build_string(&sql, &sqlleft, "SELECT cat_metric, category, var_name, var_val FROM %s ", table);
|
|
ast_build_string(&sql, &sqlleft, "WHERE filename='%s' AND commented=0 ", file);
|
|
ast_build_string(&sql, &sqlleft, "ORDER BY cat_metric DESC, var_metric ASC, category, var_name ");
|
|
q.sql = sqlbuf;
|
|
|
|
stmt = ast_odbc_prepare_and_execute(obj, config_odbc_prepare, &q);
|
|
|
|
if (!stmt) {
|
|
ast_log(LOG_WARNING, "SQL select error!\n[%s]\n\n", sql);
|
|
ast_odbc_release_obj(obj);
|
|
return NULL;
|
|
}
|
|
|
|
res = SQLNumResultCols(stmt, &rowcount);
|
|
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
ast_log(LOG_WARNING, "SQL NumResultCols error!\n[%s]\n\n", sql);
|
|
SQLFreeHandle(SQL_HANDLE_STMT, stmt);
|
|
ast_odbc_release_obj(obj);
|
|
return NULL;
|
|
}
|
|
|
|
if (!rowcount) {
|
|
ast_log(LOG_NOTICE, "found nothing\n");
|
|
ast_odbc_release_obj(obj);
|
|
return cfg;
|
|
}
|
|
|
|
cur_cat = ast_config_get_current_category(cfg);
|
|
|
|
while ((res = SQLFetch(stmt)) != SQL_NO_DATA) {
|
|
if (!strcmp (q.var_name, "#include")) {
|
|
if (!ast_config_internal_load(q.var_val, cfg, loader_flags, "", who_asked)) {
|
|
SQLFreeHandle(SQL_HANDLE_STMT, stmt);
|
|
ast_odbc_release_obj(obj);
|
|
return NULL;
|
|
}
|
|
continue;
|
|
}
|
|
if (strcmp(last, q.category) || last_cat_metric != q.cat_metric) {
|
|
cur_cat = ast_category_new(q.category, "", 99999);
|
|
if (!cur_cat) {
|
|
ast_log(LOG_WARNING, "Out of memory!\n");
|
|
break;
|
|
}
|
|
strcpy(last, q.category);
|
|
last_cat_metric = q.cat_metric;
|
|
ast_category_append(cfg, cur_cat);
|
|
}
|
|
|
|
new_v = ast_variable_new(q.var_name, q.var_val, "");
|
|
ast_variable_append(cur_cat, new_v);
|
|
}
|
|
|
|
SQLFreeHandle(SQL_HANDLE_STMT, stmt);
|
|
ast_odbc_release_obj(obj);
|
|
return cfg;
|
|
}
|
|
|
|
#define warn_length(col, size) ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' is not long enough to contain realtime data (needs %d)\n", table, database, col->name, size)
|
|
#define warn_type(col, type) ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' is of the incorrect type (%d) to contain the required realtime data\n", table, database, col->name, col->type)
|
|
|
|
static int require_odbc(const char *database, const char *table, va_list ap)
|
|
{
|
|
struct odbc_cache_tables *tableptr = ast_odbc_find_table(database, table);
|
|
struct odbc_cache_columns *col;
|
|
char *elm;
|
|
int type, size;
|
|
|
|
if (!tableptr) {
|
|
return -1;
|
|
}
|
|
|
|
while ((elm = va_arg(ap, char *))) {
|
|
type = va_arg(ap, require_type);
|
|
size = va_arg(ap, int);
|
|
/* Check if the field matches the criteria */
|
|
AST_RWLIST_TRAVERSE(&tableptr->columns, col, list) {
|
|
if (strcmp(col->name, elm) == 0) {
|
|
/* Type check, first. Some fields are more particular than others */
|
|
switch (col->type) {
|
|
case SQL_CHAR:
|
|
case SQL_VARCHAR:
|
|
case SQL_LONGVARCHAR:
|
|
#ifdef HAVE_ODBC_WCHAR
|
|
case SQL_WCHAR:
|
|
case SQL_WVARCHAR:
|
|
case SQL_WLONGVARCHAR:
|
|
#endif
|
|
case SQL_BINARY:
|
|
case SQL_VARBINARY:
|
|
case SQL_LONGVARBINARY:
|
|
case SQL_GUID:
|
|
#define CHECK_SIZE(n) \
|
|
if (col->size < n) { \
|
|
warn_length(col, n); \
|
|
} \
|
|
break;
|
|
switch (type) {
|
|
case RQ_UINTEGER1: CHECK_SIZE(3) /* 255 */
|
|
case RQ_INTEGER1: CHECK_SIZE(4) /* -128 */
|
|
case RQ_UINTEGER2: CHECK_SIZE(5) /* 65535 */
|
|
case RQ_INTEGER2: CHECK_SIZE(6) /* -32768 */
|
|
case RQ_UINTEGER3: /* 16777215 */
|
|
case RQ_INTEGER3: CHECK_SIZE(8) /* -8388608 */
|
|
case RQ_DATE: /* 2008-06-09 */
|
|
case RQ_UINTEGER4: CHECK_SIZE(10) /* 4200000000 */
|
|
case RQ_INTEGER4: CHECK_SIZE(11) /* -2100000000 */
|
|
case RQ_DATETIME: /* 2008-06-09 16:03:47 */
|
|
case RQ_UINTEGER8: CHECK_SIZE(19) /* trust me */
|
|
case RQ_INTEGER8: CHECK_SIZE(20) /* ditto */
|
|
case RQ_FLOAT:
|
|
case RQ_CHAR: CHECK_SIZE(size)
|
|
}
|
|
#undef CHECK_SIZE
|
|
break;
|
|
case SQL_TYPE_DATE:
|
|
if (type != RQ_DATE) {
|
|
warn_type(col, type);
|
|
}
|
|
break;
|
|
case SQL_TYPE_TIMESTAMP:
|
|
case SQL_TIMESTAMP:
|
|
if (type != RQ_DATE && type != RQ_DATETIME) {
|
|
warn_type(col, type);
|
|
}
|
|
break;
|
|
case SQL_BIT:
|
|
warn_length(col, size);
|
|
break;
|
|
#define WARN_TYPE_OR_LENGTH(n) \
|
|
if (!ast_rq_is_int(type)) { \
|
|
warn_type(col, type); \
|
|
} else { \
|
|
warn_length(col, n); \
|
|
}
|
|
case SQL_TINYINT:
|
|
if (type != RQ_UINTEGER1) {
|
|
WARN_TYPE_OR_LENGTH(size)
|
|
}
|
|
break;
|
|
case SQL_C_STINYINT:
|
|
if (type != RQ_INTEGER1) {
|
|
WARN_TYPE_OR_LENGTH(size)
|
|
}
|
|
break;
|
|
case SQL_C_USHORT:
|
|
if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 && type != RQ_UINTEGER2) {
|
|
WARN_TYPE_OR_LENGTH(size)
|
|
}
|
|
break;
|
|
case SQL_SMALLINT:
|
|
case SQL_C_SSHORT:
|
|
if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 && type != RQ_INTEGER2) {
|
|
WARN_TYPE_OR_LENGTH(size)
|
|
}
|
|
break;
|
|
case SQL_C_ULONG:
|
|
if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 &&
|
|
type != RQ_UINTEGER2 && type != RQ_INTEGER2 &&
|
|
type != RQ_UINTEGER3 && type != RQ_INTEGER3 &&
|
|
type != RQ_INTEGER4) {
|
|
WARN_TYPE_OR_LENGTH(size)
|
|
}
|
|
break;
|
|
case SQL_INTEGER:
|
|
case SQL_C_SLONG:
|
|
if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 &&
|
|
type != RQ_UINTEGER2 && type != RQ_INTEGER2 &&
|
|
type != RQ_UINTEGER3 && type != RQ_INTEGER3 &&
|
|
type != RQ_INTEGER4) {
|
|
WARN_TYPE_OR_LENGTH(size)
|
|
}
|
|
break;
|
|
case SQL_C_UBIGINT:
|
|
if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 &&
|
|
type != RQ_UINTEGER2 && type != RQ_INTEGER2 &&
|
|
type != RQ_UINTEGER3 && type != RQ_INTEGER3 &&
|
|
type != RQ_UINTEGER4 && type != RQ_INTEGER4 &&
|
|
type != RQ_INTEGER8) {
|
|
WARN_TYPE_OR_LENGTH(size)
|
|
}
|
|
break;
|
|
case SQL_BIGINT:
|
|
case SQL_C_SBIGINT:
|
|
if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 &&
|
|
type != RQ_UINTEGER2 && type != RQ_INTEGER2 &&
|
|
type != RQ_UINTEGER3 && type != RQ_INTEGER3 &&
|
|
type != RQ_UINTEGER4 && type != RQ_INTEGER4 &&
|
|
type != RQ_INTEGER8) {
|
|
WARN_TYPE_OR_LENGTH(size)
|
|
}
|
|
break;
|
|
#undef WARN_TYPE_OR_LENGTH
|
|
case SQL_NUMERIC:
|
|
case SQL_DECIMAL:
|
|
case SQL_FLOAT:
|
|
case SQL_REAL:
|
|
case SQL_DOUBLE:
|
|
if (!ast_rq_is_int(type) && type != RQ_FLOAT) {
|
|
warn_type(col, type);
|
|
}
|
|
break;
|
|
default:
|
|
ast_log(LOG_WARNING, "Realtime table %s@%s: column type (%d) unrecognized for column '%s'\n", table, database, col->type, elm);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (!col) {
|
|
ast_log(LOG_WARNING, "Realtime table %s@%s requires column '%s', but that column does not exist!\n", table, database, elm);
|
|
}
|
|
}
|
|
va_end(ap);
|
|
AST_RWLIST_UNLOCK(&tableptr->columns);
|
|
return 0;
|
|
}
|
|
#undef warn_length
|
|
#undef warn_type
|
|
|
|
static struct ast_config_engine odbc_engine = {
|
|
.name = "odbc",
|
|
.load_func = config_odbc,
|
|
.realtime_func = realtime_odbc,
|
|
.realtime_multi_func = realtime_multi_odbc,
|
|
.store_func = store_odbc,
|
|
.destroy_func = destroy_odbc,
|
|
.update_func = update_odbc,
|
|
.update2_func = update2_odbc,
|
|
.require_func = require_odbc,
|
|
.unload_func = ast_odbc_clear_cache,
|
|
};
|
|
|
|
static int unload_module (void)
|
|
{
|
|
ast_config_engine_deregister(&odbc_engine);
|
|
|
|
ast_verb(1, "res_config_odbc unloaded.\n");
|
|
return 0;
|
|
}
|
|
|
|
static int load_module (void)
|
|
{
|
|
ast_config_engine_register(&odbc_engine);
|
|
ast_verb(1, "res_config_odbc loaded.\n");
|
|
return 0;
|
|
}
|
|
|
|
static int reload_module(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Realtime ODBC configuration",
|
|
.load = load_module,
|
|
.unload = unload_module,
|
|
.reload = reload_module,
|
|
);
|