diff options
author | russell <russell@f38db490-d61c-443f-a65b-d21fe96a405b> | 2008-01-19 00:19:29 +0000 |
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committer | russell <russell@f38db490-d61c-443f-a65b-d21fe96a405b> | 2008-01-19 00:19:29 +0000 |
commit | f8247040e6231c4b3b5099ea3a526348b7941566 (patch) | |
tree | 0cc92ad6ebf6ae49a62f6e7ef8ec819121d63630 /trunk/cdr/cdr_sqlite3_custom.c | |
parent | d88e56c61ce2042544c1a8a71c93b69ab2e6ffba (diff) |
Creating tag for the release of asterisk-1.6.0-beta1v1.6.0-beta1
git-svn-id: http://svn.digium.com/svn/asterisk/tags/1.6.0-beta1@99163 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'trunk/cdr/cdr_sqlite3_custom.c')
-rw-r--r-- | trunk/cdr/cdr_sqlite3_custom.c | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/trunk/cdr/cdr_sqlite3_custom.c b/trunk/cdr/cdr_sqlite3_custom.c new file mode 100644 index 000000000..87718db59 --- /dev/null +++ b/trunk/cdr/cdr_sqlite3_custom.c @@ -0,0 +1,357 @@ +/* + * Asterisk -- An open source telephony toolkit. + * + * Copyright (C) 1999 - 2007, Digium, Inc. + * + * Mark Spencer <markster@digium.com> and others. + * + * See http://www.asterisk.org for more information about + * the Asterisk project. Please do not directly contact + * any of the maintainers of this project for assistance; + * the project provides a web site, mailing lists and IRC + * channels for your use. + * + * This program is free software, distributed under the terms of + * the GNU General Public License Version 2. See the LICENSE file + * at the top of the source tree. + */ + +/*! \file + * + * \brief Custom SQLite3 CDR records. + * + * \author Adapted by Alejandro Rios <alejandro.rios@avatar.com.co> and + * Russell Bryant <russell@digium.com> from + * cdr_mysql_custom by Edward Eastman <ed@dm3.co.uk>, + * and cdr_sqlite by Holger Schurig <hs4233@mail.mn-solutions.de> + * + * + * \arg See also \ref AstCDR + * + * + * \ingroup cdr_drivers + */ + +/*** MODULEINFO + <depend>sqlite3</depend> + ***/ + +#include "asterisk.h" + +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") + +#include <time.h> +#include <sqlite3.h> + +#include "asterisk/paths.h" /* use ast_config_AST_LOG_DIR */ +#include "asterisk/channel.h" +#include "asterisk/cdr.h" +#include "asterisk/module.h" +#include "asterisk/config.h" +#include "asterisk/pbx.h" +#include "asterisk/utils.h" +#include "asterisk/cli.h" + +AST_MUTEX_DEFINE_STATIC(lock); + +static const char config_file[] = "cdr_sqlite3_custom.conf"; + +static char *desc = "Customizable SQLite3 CDR Backend"; +static char *name = "cdr_sqlite3_custom"; +static sqlite3 *db = NULL; + +static char table[80]; +static char *columns; + +struct values { + char *expression; + AST_LIST_ENTRY(values) list; +}; + +static AST_LIST_HEAD_STATIC(sql_values, values); + +static int free_config(void); + +static int load_column_config(const char *tmp) +{ + char *col = NULL; + char *cols = NULL; + char *escaped = NULL; + struct ast_str *column_string = NULL; + + if (ast_strlen_zero(tmp)) { + ast_log(LOG_WARNING, "Column names not specified. Module not loaded.\n"); + return -1; + } + if (!(column_string = ast_str_create(1024))) { + ast_log(LOG_ERROR, "Out of memory creating temporary buffer for column list for table '%s.'\n", table); + return -1; + } + if (!(cols = ast_strdup(tmp))) { + ast_log(LOG_ERROR, "Out of memory creating temporary buffer for column list for table '%s.'\n", table); + ast_free(column_string); + return -1; + } + while ((col = strsep(&cols, ","))) { + col = ast_strip(col); + escaped = sqlite3_mprintf("%q", col); + if (!escaped) { + ast_log(LOG_ERROR, "Out of memory creating entry for column '%s' in table '%s.'\n", col, table); + ast_free(column_string); + ast_free(cols); + return -1; + } + if (!column_string->used) + ast_str_set(&column_string, 0, escaped); + else + ast_str_append(&column_string, 0, ",%s", escaped); + sqlite3_free(escaped); + } + if (!(columns = ast_strdup(column_string->str))) { + ast_log(LOG_ERROR, "Out of memory copying columns string for table '%s.'\n", table); + ast_free(column_string); + ast_free(cols); + return -1; + } + ast_free(column_string); + ast_free(cols); + + return 0; +} + +static int load_values_config(const char *tmp) +{ + char *val = NULL; + char *vals = NULL; + struct values *value = NULL; + + if (ast_strlen_zero(tmp)) { + ast_log(LOG_WARNING, "Values not specified. Module not loaded.\n"); + return -1; + } + if (!(vals = ast_strdup(tmp))) { + ast_log(LOG_ERROR, "Out of memory creating temporary buffer for value '%s'\n", tmp); + return -1; + } + while ((val = strsep(&vals, ","))) { + /* Strip the single quotes off if they are there */ + val = ast_strip_quoted(val, "'", "'"); + value = ast_calloc(sizeof(char), sizeof(*value) + strlen(val) + 1); + if (!value) { + ast_log(LOG_ERROR, "Out of memory creating entry for value '%s'\n", val); + ast_free(vals); + return -1; + } + value->expression = (char *) value + sizeof(*value); + ast_copy_string(value->expression, val, strlen(val) + 1); + AST_LIST_INSERT_TAIL(&sql_values, value, list); + } + ast_free(vals); + + return 0; +} + +static int load_config(int reload) +{ + struct ast_config *cfg; + struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 }; + struct ast_variable *mappingvar; + const char *tmp; + + if (!(cfg = ast_config_load(config_file, config_flags))) { + if (reload) + ast_log(LOG_WARNING, "Failed to reload configuration file.\n"); + else + ast_log(LOG_WARNING, "Failed to load configuration file. Module not activated.\n"); + return -1; + } else if (cfg == CONFIG_STATUS_FILEUNCHANGED) + return 0; + + if (reload) + free_config(); + + ast_mutex_lock(&lock); + + if (!(mappingvar = ast_variable_browse(cfg, "master"))) { + /* Nothing configured */ + ast_mutex_unlock(&lock); + ast_config_destroy(cfg); + return 0; + } + + /* Mapping must have a table name */ + tmp = ast_variable_retrieve(cfg, "master", "table"); + if (!ast_strlen_zero(tmp)) + ast_copy_string(table, tmp, sizeof(table)); + else { + ast_log(LOG_WARNING, "Table name not specified. Assuming cdr.\n"); + strcpy(table, "cdr"); + } + + /* Columns */ + tmp = ast_variable_retrieve(cfg, "master", "columns"); + if (load_column_config(tmp)) { + ast_mutex_unlock(&lock); + ast_config_destroy(cfg); + free_config(); + return -1; + } + + /* Values */ + tmp = ast_variable_retrieve(cfg, "master", "values"); + if (load_values_config(tmp)) { + ast_mutex_unlock(&lock); + ast_config_destroy(cfg); + free_config(); + return -1; + } + + ast_verb(3, "cdr_sqlite3_custom: Logging CDR records to table '%s' in 'master.db'\n", table); + + ast_mutex_unlock(&lock); + ast_config_destroy(cfg); + + return 0; +} + +static int free_config(void) +{ + struct values *value; + + ast_mutex_lock(&lock); + + if (db) { + sqlite3_close(db); + db = NULL; + } + + if (columns) { + ast_free(columns); + columns = NULL; + } + + while ((value = AST_LIST_REMOVE_HEAD(&sql_values, list))) + ast_free(value); + + ast_mutex_unlock(&lock); + + return 0; +} + +static int sqlite3_log(struct ast_cdr *cdr) +{ + int res = 0; + char *error = NULL; + char *sql = NULL; + struct ast_channel dummy = { 0, }; + int count = 0; + + { /* Make it obvious that only sql should be used outside of this block */ + char *escaped; + char subst_buf[2048]; + struct values *value; + struct ast_str *value_string = ast_str_create(1024); + dummy.cdr = cdr; + AST_LIST_TRAVERSE(&sql_values, value, list) { + memset(subst_buf, 0, sizeof(subst_buf)); + pbx_substitute_variables_helper(&dummy, value->expression, subst_buf, sizeof(subst_buf) - 1); + escaped = sqlite3_mprintf("%q", subst_buf); + if (!value_string->used) + ast_str_append(&value_string, 0, "'%s'", escaped); + else + ast_str_append(&value_string, 0, ",'%s'", escaped); + sqlite3_free(escaped); + } + sql = sqlite3_mprintf("INSERT INTO %q (%s) VALUES (%s)", table, columns, value_string->str); + ast_debug(1, "About to log: %s\n", sql); + ast_free(value_string); + } + + ast_mutex_lock(&lock); + + /* XXX This seems awful arbitrary... */ + for (count = 0; count < 5; count++) { + res = sqlite3_exec(db, sql, NULL, NULL, &error); + if (res != SQLITE_BUSY && res != SQLITE_LOCKED) + break; + usleep(200); + } + + if (error) { + ast_log(LOG_ERROR, "%s. SQL: %s.\n", error, sql); + sqlite3_free(error); + } + + if (sql) + sqlite3_free(sql); + + ast_mutex_unlock(&lock); + + return res; +} + +static int unload_module(void) +{ + free_config(); + + ast_cdr_unregister(name); + + return 0; +} + +static int load_module(void) +{ + char *error; + char filename[PATH_MAX]; + int res; + char *sql; + + if (!load_config(0)) { + res = ast_cdr_register(name, desc, sqlite3_log); + if (res) { + ast_log(LOG_ERROR, "Unable to register custom SQLite3 CDR handling\n"); + free_config(); + return AST_MODULE_LOAD_DECLINE; + } + } else + return AST_MODULE_LOAD_DECLINE; + + /* is the database there? */ + snprintf(filename, sizeof(filename), "%s/master.db", ast_config_AST_LOG_DIR); + res = sqlite3_open(filename, &db); + if (res != SQLITE_OK) { + ast_log(LOG_ERROR, "Could not open database %s.\n", filename); + free_config(); + return AST_MODULE_LOAD_DECLINE; + } + + /* is the table there? */ + sql = sqlite3_mprintf("SELECT COUNT(AcctId) FROM %q;", table); + res = sqlite3_exec(db, sql, NULL, NULL, NULL); + sqlite3_free(sql); + if (res != SQLITE_OK) { + /* We don't use %q for the column list here since we already escaped when building it */ + sql = sqlite3_mprintf("CREATE TABLE %q (AcctId INTEGER PRIMARY KEY, %s)", table, columns); + res = sqlite3_exec(db, sql, NULL, NULL, &error); + sqlite3_free(sql); + if (res != SQLITE_OK) { + ast_log(LOG_WARNING, "Unable to create table '%s': %s.\n", table, error); + sqlite3_free(error); + free_config(); + return AST_MODULE_LOAD_DECLINE; + } + } + + return 0; +} + +static int reload(void) +{ + return load_config(1); +} + +AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "SQLite3 Custom CDR Module", + .load = load_module, + .unload = unload_module, + .reload = reload, +); |