ASTERISK_REGISTER_FILE no longer has any purpose so this commit removes all traces of it. Previously exported symbols removed: * __ast_register_file * __ast_unregister_file * ast_complete_source_filename This also removes the mtx_prof static variable that was declared when MTX_PROFILE was enabled. This variable was only used in lock.c so it is now initialized in that file only. ASTERISK-26480 #close Change-Id: I1074af07d71f9e159c48ef36631aa432c86f9966
354 lines
8.8 KiB
C
354 lines
8.8 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2007, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com> and others.
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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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/*!
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* \file
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* \brief Custom SQLite3 CDR records.
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*
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* \author Adapted by Alejandro Rios <alejandro.rios@avatar.com.co> and
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* Russell Bryant <russell@digium.com> from
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* cdr_mysql_custom by Edward Eastman <ed@dm3.co.uk>,
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* and cdr_sqlite by Holger Schurig <hs4233@mail.mn-solutions.de>
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*
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*
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* \arg See also \ref AstCDR
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*
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*
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* \ingroup cdr_drivers
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*/
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/*** MODULEINFO
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<depend>sqlite3</depend>
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<support_level>extended</support_level>
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***/
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#include "asterisk.h"
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#include <sqlite3.h>
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#include "asterisk/paths.h" /* use ast_config_AST_LOG_DIR */
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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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#include "asterisk/config.h"
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#include "asterisk/pbx.h"
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#include "asterisk/utils.h"
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#include "asterisk/cli.h"
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#include "asterisk/app.h"
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AST_MUTEX_DEFINE_STATIC(lock);
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static const char config_file[] = "cdr_sqlite3_custom.conf";
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static const char desc[] = "Customizable SQLite3 CDR Backend";
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static const char name[] = "cdr_sqlite3_custom";
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static sqlite3 *db = NULL;
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static char table[80];
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static char *columns;
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struct values {
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AST_LIST_ENTRY(values) list;
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char expression[1];
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};
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static AST_LIST_HEAD_STATIC(sql_values, values);
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static void free_config(int reload);
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static int load_column_config(const char *tmp)
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{
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char *col = NULL;
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char *cols = NULL, *save = NULL;
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char *escaped = NULL;
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struct ast_str *column_string = NULL;
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if (ast_strlen_zero(tmp)) {
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ast_log(LOG_WARNING, "Column names not specified. Module not loaded.\n");
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return -1;
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}
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if (!(column_string = ast_str_create(1024))) {
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ast_log(LOG_ERROR, "Out of memory creating temporary buffer for column list for table '%s.'\n", table);
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return -1;
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}
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if (!(save = cols = ast_strdup(tmp))) {
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ast_log(LOG_ERROR, "Out of memory creating temporary buffer for column list for table '%s.'\n", table);
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ast_free(column_string);
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return -1;
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}
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while ((col = strsep(&cols, ","))) {
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col = ast_strip(col);
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escaped = sqlite3_mprintf("%q", col);
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if (!escaped) {
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ast_log(LOG_ERROR, "Out of memory creating entry for column '%s' in table '%s.'\n", col, table);
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ast_free(column_string);
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ast_free(save);
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return -1;
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}
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ast_str_append(&column_string, 0, "%s%s", ast_str_strlen(column_string) ? "," : "", escaped);
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sqlite3_free(escaped);
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}
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if (!(columns = ast_strdup(ast_str_buffer(column_string)))) {
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ast_log(LOG_ERROR, "Out of memory copying columns string for table '%s.'\n", table);
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ast_free(column_string);
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ast_free(save);
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return -1;
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}
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ast_free(column_string);
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ast_free(save);
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return 0;
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}
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static int load_values_config(const char *tmp)
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{
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char *vals = NULL, *save = NULL;
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struct values *value = NULL;
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int i;
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AST_DECLARE_APP_ARGS(val,
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AST_APP_ARG(ues)[200]; /* More than 200 columns in this CDR? Yeah, right... */
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);
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if (ast_strlen_zero(tmp)) {
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ast_log(LOG_WARNING, "Values not specified. Module not loaded.\n");
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return -1;
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}
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if (!(save = vals = ast_strdup(tmp))) {
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ast_log(LOG_ERROR, "Out of memory creating temporary buffer for value '%s'\n", tmp);
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return -1;
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}
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AST_STANDARD_RAW_ARGS(val, vals);
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for (i = 0; i < val.argc; i++) {
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/* Strip the single quotes off if they are there */
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char *v = ast_strip_quoted(val.ues[i], "'", "'");
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value = ast_calloc(sizeof(char), sizeof(*value) + strlen(v));
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if (!value) {
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ast_log(LOG_ERROR, "Out of memory creating entry for value '%s'\n", v);
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ast_free(save);
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return -1;
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}
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strcpy(value->expression, v); /* SAFE */
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AST_LIST_INSERT_TAIL(&sql_values, value, list);
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}
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ast_free(save);
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return 0;
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}
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static int load_config(int reload)
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{
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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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const char *tmp;
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if ((cfg = ast_config_load(config_file, config_flags)) == CONFIG_STATUS_FILEMISSING || cfg == CONFIG_STATUS_FILEINVALID) {
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ast_log(LOG_WARNING, "Failed to %sload configuration file. %s\n", reload ? "re" : "", reload ? "" : "Module not activated.");
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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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}
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if (reload) {
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free_config(1);
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}
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if (!ast_variable_browse(cfg, "master")) {
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/* Nothing configured */
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ast_config_destroy(cfg);
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return -1;
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}
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/* Mapping must have a table name */
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if (!ast_strlen_zero(tmp = ast_variable_retrieve(cfg, "master", "table"))) {
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ast_copy_string(table, tmp, sizeof(table));
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} else {
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ast_log(LOG_WARNING, "Table name not specified. Assuming cdr.\n");
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strcpy(table, "cdr");
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}
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/* Columns */
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if (load_column_config(ast_variable_retrieve(cfg, "master", "columns"))) {
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ast_config_destroy(cfg);
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free_config(0);
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return -1;
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}
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/* Values */
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if (load_values_config(ast_variable_retrieve(cfg, "master", "values"))) {
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ast_config_destroy(cfg);
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free_config(0);
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return -1;
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}
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ast_verb(4, "cdr_sqlite3_custom: Logging CDR records to table '%s' in 'master.db'\n", table);
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ast_config_destroy(cfg);
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return 0;
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}
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static void free_config(int reload)
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{
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struct values *value;
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if (!reload && db) {
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sqlite3_close(db);
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db = NULL;
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}
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if (columns) {
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ast_free(columns);
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columns = NULL;
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}
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while ((value = AST_LIST_REMOVE_HEAD(&sql_values, list))) {
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ast_free(value);
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}
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}
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static int write_cdr(struct ast_cdr *cdr)
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{
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int res = 0;
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char *error = NULL;
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char *sql = NULL;
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if (db == NULL) {
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/* Should not have loaded, but be failsafe. */
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return 0;
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}
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ast_mutex_lock(&lock);
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{ /* Make it obvious that only sql should be used outside of this block */
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char *escaped;
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char subst_buf[2048];
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struct values *value;
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struct ast_channel *dummy;
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struct ast_str *value_string = ast_str_create(1024);
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dummy = ast_dummy_channel_alloc();
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if (!dummy) {
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ast_log(LOG_ERROR, "Unable to allocate channel for variable subsitution.\n");
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ast_free(value_string);
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ast_mutex_unlock(&lock);
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return 0;
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}
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ast_channel_cdr_set(dummy, ast_cdr_dup(cdr));
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AST_LIST_TRAVERSE(&sql_values, value, list) {
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pbx_substitute_variables_helper(dummy, value->expression, subst_buf, sizeof(subst_buf) - 1);
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escaped = sqlite3_mprintf("%q", subst_buf);
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ast_str_append(&value_string, 0, "%s'%s'", ast_str_strlen(value_string) ? "," : "", escaped);
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sqlite3_free(escaped);
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}
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sql = sqlite3_mprintf("INSERT INTO %q (%s) VALUES (%s)", table, columns, ast_str_buffer(value_string));
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ast_debug(1, "About to log: %s\n", sql);
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ast_channel_unref(dummy);
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ast_free(value_string);
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}
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if (sqlite3_exec(db, sql, NULL, NULL, &error) != SQLITE_OK) {
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ast_log(LOG_ERROR, "%s. SQL: %s.\n", error, sql);
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sqlite3_free(error);
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}
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if (sql) {
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sqlite3_free(sql);
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}
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ast_mutex_unlock(&lock);
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return res;
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}
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static int unload_module(void)
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{
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if (ast_cdr_unregister(name)) {
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return -1;
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}
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free_config(0);
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return 0;
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}
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static int load_module(void)
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{
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char *error;
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char filename[PATH_MAX];
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int res;
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char *sql;
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if (load_config(0)) {
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return AST_MODULE_LOAD_DECLINE;
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}
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/* is the database there? */
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snprintf(filename, sizeof(filename), "%s/master.db", ast_config_AST_LOG_DIR);
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res = sqlite3_open(filename, &db);
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if (res != SQLITE_OK) {
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ast_log(LOG_ERROR, "Could not open database %s.\n", filename);
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free_config(0);
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return AST_MODULE_LOAD_DECLINE;
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}
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sqlite3_busy_timeout(db, 1000);
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/* is the table there? */
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sql = sqlite3_mprintf("SELECT COUNT(AcctId) FROM %q;", table);
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res = sqlite3_exec(db, sql, NULL, NULL, NULL);
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sqlite3_free(sql);
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if (res != SQLITE_OK) {
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/* We don't use %q for the column list here since we already escaped when building it */
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sql = sqlite3_mprintf("CREATE TABLE %q (AcctId INTEGER PRIMARY KEY, %s)", table, columns);
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res = sqlite3_exec(db, sql, NULL, NULL, &error);
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sqlite3_free(sql);
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if (res != SQLITE_OK) {
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ast_log(LOG_WARNING, "Unable to create table '%s': %s.\n", table, error);
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sqlite3_free(error);
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free_config(0);
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return AST_MODULE_LOAD_DECLINE;
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}
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}
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res = ast_cdr_register(name, desc, write_cdr);
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if (res) {
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ast_log(LOG_ERROR, "Unable to register custom SQLite3 CDR handling\n");
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free_config(0);
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return AST_MODULE_LOAD_DECLINE;
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}
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int reload(void)
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{
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int res = 0;
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ast_mutex_lock(&lock);
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res = load_config(1);
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ast_mutex_unlock(&lock);
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return res;
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "SQLite3 Custom CDR Module",
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.support_level = AST_MODULE_SUPPORT_EXTENDED,
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.load = load_module,
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.unload = unload_module,
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.reload = reload,
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.load_pri = AST_MODPRI_CDR_DRIVER,
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);
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