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asterisk/res/res_config_sqlite.c

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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2006, Proformatique
*
* Written by Richard Braun <rbraun@proformatique.com>
*
* Based on res_sqlite3 by Anthony Minessale II,
* and res_config_mysql by Matthew Boehm
*
* 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.
*/
/*!
* \page res_config_sqlite
*
* \section intro_sec Presentation
*
* res_config_sqlite is a module for the Asterisk Open Source PBX to
* support SQLite 2 databases. It can be used to fetch configuration
* from a database (static configuration files and/or using the Asterisk
* RealTime Architecture - ARA). It can also be used to log CDR entries.
* Note that Asterisk already comes with a module named cdr_sqlite.
* There are two reasons for including it in res_config_sqlite:
* the first is that rewriting it was a training to learn how to write a
* simple module for Asterisk, the other is to have the same database open for
* all kinds of operations, which improves reliability and performance.
*
* \section conf_sec Configuration
*
* The main configuration file is res_config_sqlite.conf. It must be readable or
* res_config_sqlite will fail to start. It is suggested to use the sample file
* in this package as a starting point. The file has only one section
* named <code>general</code>. Here are the supported parameters :
*
* <dl>
* <dt><code>dbfile</code></dt>
* <dd>The absolute path to the SQLite database (the file can be non existent,
* res_config_sqlite will create it if it has the appropriate rights)</dd>
* <dt><code>config_table</code></dt>
* <dd>The table used for static configuration</dd>
* <dt><code>cdr_table</code></dt>
* <dd>The table used to store CDR entries (if ommitted, CDR support is
* disabled)</dd>
* </dl>
*
* To use res_config_sqlite for static and/or RealTime configuration, refer to the
* Asterisk documentation. The file tables.sql can be used to create the
* needed tables.
*
* \section status_sec Driver status
*
* The CLI command <code>show sqlite status</code> returns status information
* about the running driver.
*
* \section credits_sec Credits
*
* res_config_sqlite was developed by Richard Braun at the Proformatique company.
*/
/*!
* \file
* \brief res_config_sqlite module.
*/
/*** MODULEINFO
<depend>sqlite</depend>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include <sqlite.h>
#include "asterisk/logger.h"
#include "asterisk/app.h"
#include "asterisk/pbx.h"
#include "asterisk/cdr.h"
#include "asterisk/cli.h"
#include "asterisk/lock.h"
#include "asterisk/config.h"
#include "asterisk/module.h"
#include "asterisk/linkedlists.h"
#define MACRO_BEGIN do {
#define MACRO_END } while (0)
#define RES_CONFIG_SQLITE_NAME "res_config_sqlite"
#define RES_CONFIG_SQLITE_DRIVER "sqlite"
#define RES_CONFIG_SQLITE_DESCRIPTION "Resource Module for SQLite 2"
#define RES_CONFIG_SQLITE_CONF_FILE "res_config_sqlite.conf"
enum {
RES_CONFIG_SQLITE_CONFIG_ID,
RES_CONFIG_SQLITE_CONFIG_CAT_METRIC,
RES_CONFIG_SQLITE_CONFIG_VAR_METRIC,
RES_CONFIG_SQLITE_CONFIG_COMMENTED,
RES_CONFIG_SQLITE_CONFIG_FILENAME,
RES_CONFIG_SQLITE_CONFIG_CATEGORY,
RES_CONFIG_SQLITE_CONFIG_VAR_NAME,
RES_CONFIG_SQLITE_CONFIG_VAR_VAL,
RES_CONFIG_SQLITE_CONFIG_COLUMNS,
};
#define SET_VAR(config, to, from) \
MACRO_BEGIN \
int __error; \
\
__error = set_var(&to, #to, from->value); \
\
if (__error) { \
ast_config_destroy(config); \
unload_config(); \
return 1; \
} \
MACRO_END
AST_THREADSTORAGE(sql_buf);
AST_THREADSTORAGE(where_buf);
/*!
* Maximum number of loops before giving up executing a query. Calls to
* sqlite_xxx() functions which can return SQLITE_BUSY
* are enclosed by RES_CONFIG_SQLITE_BEGIN and RES_CONFIG_SQLITE_END, e.g.
* <pre>
* char *errormsg;
* int error;
*
* RES_CONFIG_SQLITE_BEGIN
* error = sqlite_exec(db, query, NULL, NULL, &errormsg);
* RES_CONFIG_SQLITE_END(error)
*
* if (error)
* ...;
* </pre>
*/
#define RES_CONFIG_SQLITE_MAX_LOOPS 10
/*!
* Macro used before executing a query.
*
* \see RES_CONFIG_SQLITE_MAX_LOOPS.
*/
#define RES_CONFIG_SQLITE_BEGIN \
MACRO_BEGIN \
int __i; \
\
for (__i = 0; __i < RES_CONFIG_SQLITE_MAX_LOOPS; __i++) {
/*!
* Macro used after executing a query.
*
* \see RES_CONFIG_SQLITE_MAX_LOOPS.
*/
#define RES_CONFIG_SQLITE_END(error) \
if (error != SQLITE_BUSY) \
break; \
usleep(1000); \
} \
MACRO_END;
/*!
* Structure sent to the SQLite callback function for static configuration.
*
* \see add_cfg_entry()
*/
struct cfg_entry_args {
struct ast_config *cfg;
struct ast_category *cat;
char *cat_name;
struct ast_flags flags;
const char *who_asked;
};
/*!
* Structure sent to the SQLite callback function for RealTime configuration.
*
* \see add_rt_cfg_entry()
*/
struct rt_cfg_entry_args {
struct ast_variable *var;
struct ast_variable *last;
};
/*!
* Structure sent to the SQLite callback function for RealTime configuration
* (realtime_multi_handler()).
*
* \see add_rt_multi_cfg_entry()
*/
struct rt_multi_cfg_entry_args {
struct ast_config *cfg;
char *initfield;
};
/*!
* \brief Allocate a variable.
* \param var the address of the variable to set (it will be allocated)
* \param name the name of the variable (for error handling)
* \param value the value to store in var
* \retval 0 on success
* \retval 1 if an allocation error occurred
*/
static int set_var(char **var, const char *name, const char *value);
/*!
* \brief Load the configuration file.
* \see unload_config()
*
* This function sets dbfile, config_table, and cdr_table. It calls
* check_vars() before returning, and unload_config() if an error occurred.
*
* \retval 0 on success
* \retval 1 if an error occurred
*/
static int load_config(void);
/*!
* \brief Free resources related to configuration.
* \see load_config()
*/
static void unload_config(void);
/*!
* \brief Asterisk callback function for CDR support.
* \param cdr the CDR entry Asterisk sends us.
*
* Asterisk will call this function each time a CDR entry must be logged if
* CDR support is enabled.
*
* \retval 0 on success
* \retval 1 if an error occurred
*/
static int cdr_handler(struct ast_cdr *cdr);
/*!
* \brief SQLite callback function for static configuration.
*
* This function is passed to the SQLite engine as a callback function to
* parse a row and store it in a struct ast_config object. It relies on
* resulting rows being sorted by category.
*
* \param arg a pointer to a struct cfg_entry_args object
* \param argc number of columns
* \param argv values in the row
* \param columnNames names and types of the columns
* \retval 0 on success
* \retval 1 if an error occurred
* \see cfg_entry_args
* \see sql_get_config_table
* \see config_handler()
*/
static int add_cfg_entry(void *arg, int argc, char **argv, char **columnNames);
/*!
* \brief Asterisk callback function for static configuration.
*
* Asterisk will call this function when it loads its static configuration,
* which usually happens at startup and reload.
*
* \param database the database to use (ignored)
* \param table the table to use
* \param file the file to load from the database
* \param cfg the struct ast_config object to use when storing variables
* \param flags Optional flags. Not used.
* \param suggested_incl suggest include.
* \retval cfg object
* \retval NULL if an error occurred
* \see add_cfg_entry()
*/
static struct ast_config * config_handler(const char *database, const char *table, const char *file,
struct ast_config *cfg, struct ast_flags flags, const char *suggested_incl, const char *who_asked);
/*!
* \brief Helper function to parse a va_list object into 2 dynamic arrays of
* strings, parameters and values.
*
* ap must have the following format : param1 val1 param2 val2 param3 val3 ...
* arguments will be extracted to create 2 arrays:
*
* <ul>
* <li>params : param1 param2 param3 ...</li>
* <li>vals : val1 val2 val3 ...</li>
* </ul>
*
* The address of these arrays are stored in params_ptr and vals_ptr. It
* is the responsibility of the caller to release the memory of these arrays.
* It is considered an error that va_list has a null or odd number of strings.
*
* \param ap the va_list object to parse
* \param params_ptr where the address of the params array is stored
* \param vals_ptr where the address of the vals array is stored
* \retval the number of elements in the arrays (which have the same size).
* \retval 0 if an error occurred.
*/
static size_t get_params(va_list ap, const char ***params_ptr,
const char ***vals_ptr, int warn);
/*!
* \brief SQLite callback function for RealTime configuration.
*
* This function is passed to the SQLite engine as a callback function to
* parse a row and store it in a linked list of struct ast_variable objects.
*
* \param arg a pointer to a struct rt_cfg_entry_args object
* \param argc number of columns
* \param argv values in the row
* \param columnNames names and types of the columns
* \retval 0 on success.
* \retval 1 if an error occurred.
* \see rt_cfg_entry_args
* \see realtime_handler()
*/
static int add_rt_cfg_entry(void *arg, int argc, char **argv,
char **columnNames);
/*!
* \brief Asterisk callback function for RealTime configuration.
*
* Asterisk will call this function each time it requires a variable
* through the RealTime architecture. ap is a list of parameters and
* values used to find a specific row, e.g one parameter "name" and
* one value "123" so that the SQL query becomes <code>SELECT * FROM
* table WHERE name = '123';</code>.
*
* \param database the database to use (ignored)
* \param table the table to use
* \param ap list of parameters and values to match
*
* \retval a linked list of struct ast_variable objects
* \retval NULL if an error occurred
* \see add_rt_cfg_entry()
*/
static struct ast_variable * realtime_handler(const char *database,
const char *table, va_list ap);
/*!
* \brief SQLite callback function for RealTime configuration.
*
* This function performs the same actions as add_rt_cfg_entry() except
* that the rt_multi_cfg_entry_args structure is designed to store
* categories in addition to variables.
*
* \param arg a pointer to a struct rt_multi_cfg_entry_args object
* \param argc number of columns
* \param argv values in the row
* \param columnNames names and types of the columns
* \retval 0 on success.
* \retval 1 if an error occurred.
* \see rt_multi_cfg_entry_args
* \see realtime_multi_handler()
*/
static int add_rt_multi_cfg_entry(void *arg, int argc, char **argv,
char **columnNames);
/*!
* \brief Asterisk callback function for RealTime configuration.
*
* This function performs the same actions as realtime_handler() except
* that it can store variables per category, and can return several
* categories.
*
* \param database the database to use (ignored)
* \param table the table to use
* \param ap list of parameters and values to match
* \retval a struct ast_config object storing categories and variables.
* \retval NULL if an error occurred.
*
* \see add_rt_multi_cfg_entry()
*/
static struct ast_config * realtime_multi_handler(const char *database,
const char *table, va_list ap);
/*!
* \brief Asterisk callback function for RealTime configuration (variable
* update).
*
* Asterisk will call this function each time a variable has been modified
* internally and must be updated in the backend engine. keyfield and entity
* are used to find the row to update, e.g. <code>UPDATE table SET ... WHERE
* keyfield = 'entity';</code>. ap is a list of parameters and values with the
* same format as the other realtime functions.
*
* \param database the database to use (ignored)
* \param table the table to use
* \param keyfield the column of the matching cell
* \param entity the value of the matching cell
* \param ap list of parameters and new values to update in the database
* \retval the number of affected rows.
* \retval -1 if an error occurred.
*/
static int realtime_update_handler(const char *database, const char *table,
const char *keyfield, const char *entity, va_list ap);
static int realtime_update2_handler(const char *database, const char *table,
va_list ap);
/*!
* \brief Asterisk callback function for RealTime configuration (variable
* create/store).
*
* Asterisk will call this function each time a variable has been created
* internally and must be stored in the backend engine.
* are used to find the row to update, e.g. ap is a list of parameters and
* values with the same format as the other realtime functions.
*
* \param database the database to use (ignored)
* \param table the table to use
* \param ap list of parameters and new values to insert into the database
* \retval the rowid of inserted row.
* \retval -1 if an error occurred.
*/
static int realtime_store_handler(const char *database, const char *table,
va_list ap);
/*!
* \brief Asterisk callback function for RealTime configuration (destroys
* variable).
*
* Asterisk will call this function each time a variable has been destroyed
* internally and must be removed from the backend engine. keyfield and entity
* are used to find the row to delete, e.g. <code>DELETE FROM table WHERE
* keyfield = 'entity';</code>. ap is a list of parameters and values with the
* same format as the other realtime functions.
*
* \param database the database to use (ignored)
* \param table the table to use
* \param keyfield the column of the matching cell
* \param entity the value of the matching cell
* \param ap list of additional parameters for cell matching
* \retval the number of affected rows.
* \retval -1 if an error occurred.
*/
static int realtime_destroy_handler(const char *database, const char *table,
const char *keyfield, const char *entity, va_list ap);
/*!
* \brief Asterisk callback function for the CLI status command.
*
* \param e CLI command
* \param cmd
* \param a CLI argument list
* \return RESULT_SUCCESS
*/
static char *handle_cli_show_sqlite_status(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static char *handle_cli_sqlite_show_tables(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static int realtime_require_handler(const char *database, const char *table, va_list ap);
static int realtime_unload_handler(const char *unused, const char *tablename);
/*! The SQLite database object. */
static sqlite *db;
/*! Set to 1 if CDR support is enabled. */
static int use_cdr;
/*! Set to 1 if the CDR callback function was registered. */
static int cdr_registered;
/*! Set to 1 if the CLI status command callback function was registered. */
static int cli_status_registered;
/*! The path of the database file. */
static char *dbfile;
/*! The name of the static configuration table. */
static char *config_table;
/*! The name of the table used to store CDR entries. */
static char *cdr_table;
/*!
* The structure specifying all callback functions used by Asterisk for static
* and RealTime configuration.
*/
static struct ast_config_engine sqlite_engine =
{
.name = RES_CONFIG_SQLITE_DRIVER,
.load_func = config_handler,
.realtime_func = realtime_handler,
.realtime_multi_func = realtime_multi_handler,
.store_func = realtime_store_handler,
.destroy_func = realtime_destroy_handler,
.update_func = realtime_update_handler,
.update2_func = realtime_update2_handler,
.require_func = realtime_require_handler,
.unload_func = realtime_unload_handler,
};
/*!
* The mutex used to prevent simultaneous access to the SQLite database.
*/
AST_MUTEX_DEFINE_STATIC(mutex);
/*!
* Structure containing details and callback functions for the CLI status
* command.
*/
static struct ast_cli_entry cli_status[] = {
AST_CLI_DEFINE(handle_cli_show_sqlite_status, "Show status information about the SQLite 2 driver"),
AST_CLI_DEFINE(handle_cli_sqlite_show_tables, "Cached table information about the SQLite 2 driver"),
};
struct sqlite_cache_columns {
char *name;
char *type;
unsigned char isint; /*!< By definition, only INTEGER PRIMARY KEY is an integer; everything else is a string. */
AST_RWLIST_ENTRY(sqlite_cache_columns) list;
};
struct sqlite_cache_tables {
char *name;
AST_RWLIST_HEAD(_columns, sqlite_cache_columns) columns;
AST_RWLIST_ENTRY(sqlite_cache_tables) list;
};
static AST_RWLIST_HEAD_STATIC(sqlite_tables, sqlite_cache_tables);
/*
* Taken from Asterisk 1.2 cdr_sqlite.so.
*/
/*! SQL query format to create the CDR table if non existent. */
static char *sql_create_cdr_table =
"CREATE TABLE '%q' (\n"
" id INTEGER,\n"
" clid VARCHAR(80) NOT NULL DEFAULT '',\n"
" src VARCHAR(80) NOT NULL DEFAULT '',\n"
" dst VARCHAR(80) NOT NULL DEFAULT '',\n"
" dcontext VARCHAR(80) NOT NULL DEFAULT '',\n"
" channel VARCHAR(80) NOT NULL DEFAULT '',\n"
" dstchannel VARCHAR(80) NOT NULL DEFAULT '',\n"
" lastapp VARCHAR(80) NOT NULL DEFAULT '',\n"
" lastdata VARCHAR(80) NOT NULL DEFAULT '',\n"
" start DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00',\n"
" answer DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00',\n"
" end DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00',\n"
" duration INT(11) NOT NULL DEFAULT 0,\n"
" billsec INT(11) NOT NULL DEFAULT 0,\n"
" disposition VARCHAR(45) NOT NULL DEFAULT '',\n"
" amaflags INT(11) NOT NULL DEFAULT 0,\n"
" accountcode VARCHAR(20) NOT NULL DEFAULT '',\n"
" uniqueid VARCHAR(32) NOT NULL DEFAULT '',\n"
" userfield VARCHAR(255) NOT NULL DEFAULT '',\n"
" PRIMARY KEY (id)\n"
");";
/*!
* SQL query format to describe the table structure
*/
#define sql_table_structure "SELECT sql FROM sqlite_master WHERE type='table' AND tbl_name='%s'"
/*!
* SQL query format to fetch the static configuration of a file.
* Rows must be sorted by category.
*
* \see add_cfg_entry()
*/
#define sql_get_config_table \
"SELECT *" \
" FROM '%q'" \
" WHERE filename = '%q' AND commented = 0" \
" ORDER BY cat_metric ASC, var_metric ASC;"
static void free_table(struct sqlite_cache_tables *tblptr)
{
struct sqlite_cache_columns *col;
/* Obtain a write lock to ensure there are no read locks outstanding */
AST_RWLIST_WRLOCK(&(tblptr->columns));
while ((col = AST_RWLIST_REMOVE_HEAD(&(tblptr->columns), list))) {
ast_free(col);
}
AST_RWLIST_UNLOCK(&(tblptr->columns));
AST_RWLIST_HEAD_DESTROY(&(tblptr->columns));
ast_free(tblptr);
}
static int find_table_cb(void *vtblptr, int argc, char **argv, char **columnNames)
{
struct sqlite_cache_tables *tblptr = vtblptr;
char *sql = ast_strdupa(argv[0]), *start, *end, *type, *remainder;
int i;
AST_DECLARE_APP_ARGS(fie,
AST_APP_ARG(ld)[100]; /* This means we support up to 100 columns per table */
);
struct sqlite_cache_columns *col;
/* This is really fun. We get to parse an SQL statement to figure out
* what columns are in the table.
*/
if ((start = strchr(sql, '(')) && (end = strrchr(sql, ')'))) {
start++;
*end = '\0';
} else {
/* Abort */
return -1;
}
AST_STANDARD_APP_ARGS(fie, start);
for (i = 0; i < fie.argc; i++) {
fie.ld[i] = ast_skip_blanks(fie.ld[i]);
ast_debug(5, "Found field: %s\n", fie.ld[i]);
if (strncasecmp(fie.ld[i], "PRIMARY KEY", 11) == 0 && (start = strchr(fie.ld[i], '(')) && (end = strchr(fie.ld[i], ')'))) {
*end = '\0';
AST_RWLIST_TRAVERSE(&(tblptr->columns), col, list) {
if (strcasecmp(start + 1, col->name) == 0 && strcasestr(col->type, "INTEGER")) {
col->isint = 1;
}
}
continue;
}
/* type delimiter could be any space character */
for (type = fie.ld[i]; *type > 32; type++);
*type++ = '\0';
type = ast_skip_blanks(type);
for (remainder = type; *remainder > 32; remainder++);
*remainder = '\0';
if (!(col = ast_calloc(1, sizeof(*col) + strlen(fie.ld[i]) + strlen(type) + 2))) {
return -1;
}
col->name = (char *)col + sizeof(*col);
col->type = (char *)col + sizeof(*col) + strlen(fie.ld[i]) + 1;
strcpy(col->name, fie.ld[i]); /* SAFE */
strcpy(col->type, type); /* SAFE */
if (strcasestr(col->type, "INTEGER") && strcasestr(col->type, "PRIMARY KEY")) {
col->isint = 1;
}
AST_LIST_INSERT_TAIL(&(tblptr->columns), col, list);
}
return 0;
}
static struct sqlite_cache_tables *find_table(const char *tablename)
{
struct sqlite_cache_tables *tblptr;
int i, err;
char *sql, *errstr = NULL;
AST_RWLIST_RDLOCK(&sqlite_tables);
for (i = 0; i < 2; i++) {
AST_RWLIST_TRAVERSE(&sqlite_tables, tblptr, list) {
if (strcmp(tblptr->name, tablename) == 0) {
break;
}
}
if (tblptr) {
AST_RWLIST_RDLOCK(&(tblptr->columns));
AST_RWLIST_UNLOCK(&sqlite_tables);
return tblptr;
}
if (i == 0) {
AST_RWLIST_UNLOCK(&sqlite_tables);
AST_RWLIST_WRLOCK(&sqlite_tables);
}
}
/* Table structure not cached; build the structure now */
if (asprintf(&sql, sql_table_structure, tablename) < 0) {
ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
sql = NULL;
}
if (!(tblptr = ast_calloc(1, sizeof(*tblptr) + strlen(tablename) + 1))) {
AST_RWLIST_UNLOCK(&sqlite_tables);
ast_log(LOG_ERROR, "Memory error. Cannot cache table '%s'\n", tablename);
return NULL;
}
tblptr->name = (char *)tblptr + sizeof(*tblptr);
strcpy(tblptr->name, tablename); /* SAFE */
AST_RWLIST_HEAD_INIT(&(tblptr->columns));
ast_debug(1, "About to query table structure: %s\n", sql);
ast_mutex_lock(&mutex);
if ((err = sqlite_exec(db, sql, find_table_cb, tblptr, &errstr))) {
ast_mutex_unlock(&mutex);
ast_log(LOG_WARNING, "SQLite error %d: %s\n", err, errstr);
ast_free(errstr);
free_table(tblptr);
return NULL;
}
ast_mutex_unlock(&mutex);
if (AST_LIST_EMPTY(&(tblptr->columns))) {
free_table(tblptr);
return NULL;
}
AST_RWLIST_INSERT_TAIL(&sqlite_tables, tblptr, list);
AST_RWLIST_RDLOCK(&(tblptr->columns));
AST_RWLIST_UNLOCK(&sqlite_tables);
return tblptr;
}
#define release_table(a) AST_RWLIST_UNLOCK(&((a)->columns))
static int set_var(char **var, const char *name, const char *value)
{
if (*var)
ast_free(*var);
*var = ast_strdup(value);
if (!*var) {
ast_log(LOG_WARNING, "Unable to allocate variable %s\n", name);
return 1;
}
return 0;
}
static int check_vars(void)
{
if (!dbfile) {
ast_log(LOG_ERROR, "Required parameter undefined: dbfile\n");
return 1;
}
use_cdr = (cdr_table != NULL);
return 0;
}
static int load_config(void)
{
struct ast_config *config;
struct ast_variable *var;
int error;
struct ast_flags config_flags = { 0 };
config = ast_config_load(RES_CONFIG_SQLITE_CONF_FILE, config_flags);
if (config == CONFIG_STATUS_FILEMISSING || config == CONFIG_STATUS_FILEINVALID) {
ast_log(LOG_ERROR, "Unable to load " RES_CONFIG_SQLITE_CONF_FILE "\n");
return 1;
}
for (var = ast_variable_browse(config, "general"); var; var = var->next) {
if (!strcasecmp(var->name, "dbfile"))
SET_VAR(config, dbfile, var);
else if (!strcasecmp(var->name, "config_table"))
SET_VAR(config, config_table, var);
else if (!strcasecmp(var->name, "cdr_table")) {
SET_VAR(config, cdr_table, var);
} else
ast_log(LOG_WARNING, "Unknown parameter : %s\n", var->name);
}
ast_config_destroy(config);
error = check_vars();
if (error) {
unload_config();
return 1;
}
return 0;
}
static void unload_config(void)
{
struct sqlite_cache_tables *tbl;
ast_free(dbfile);
dbfile = NULL;
ast_free(config_table);
config_table = NULL;
ast_free(cdr_table);
cdr_table = NULL;
AST_RWLIST_WRLOCK(&sqlite_tables);
while ((tbl = AST_RWLIST_REMOVE_HEAD(&sqlite_tables, list))) {
free_table(tbl);
}
AST_RWLIST_UNLOCK(&sqlite_tables);
}
static int cdr_handler(struct ast_cdr *cdr)
{
char *errormsg = NULL, *tmp, workspace[500];
int error, scannum;
struct sqlite_cache_tables *tbl = find_table(cdr_table);
struct sqlite_cache_columns *col;
struct ast_str *sql1 = ast_str_create(160), *sql2 = ast_str_create(16);
int first = 1;
if (!tbl) {
ast_log(LOG_WARNING, "No such table: %s\n", cdr_table);
return -1;
}
ast_str_set(&sql1, 0, "INSERT INTO %s (", cdr_table);
ast_str_set(&sql2, 0, ") VALUES (");
AST_RWLIST_TRAVERSE(&(tbl->columns), col, list) {
if (col->isint) {
ast_cdr_getvar(cdr, col->name, &tmp, workspace, sizeof(workspace), 0, 1);
if (!tmp) {
continue;
}
if (sscanf(tmp, "%30d", &scannum) == 1) {
ast_str_append(&sql1, 0, "%s%s", first ? "" : ",", col->name);
ast_str_append(&sql2, 0, "%s%d", first ? "" : ",", scannum);
}
} else {
ast_cdr_getvar(cdr, col->name, &tmp, workspace, sizeof(workspace), 0, 0);
if (!tmp) {
continue;
}
ast_str_append(&sql1, 0, "%s%s", first ? "" : ",", col->name);
tmp = sqlite_mprintf("%Q", tmp);
ast_str_append(&sql2, 0, "%s%s", first ? "" : ",", tmp);
sqlite_freemem(tmp);
}
first = 0;
}
release_table(tbl);
ast_str_append(&sql1, 0, "%s)", ast_str_buffer(sql2));
ast_free(sql2);
ast_debug(1, "SQL query: %s\n", ast_str_buffer(sql1));
ast_mutex_lock(&mutex);
RES_CONFIG_SQLITE_BEGIN
error = sqlite_exec(db, ast_str_buffer(sql1), NULL, NULL, &errormsg);
RES_CONFIG_SQLITE_END(error)
ast_mutex_unlock(&mutex);
ast_free(sql1);
if (error) {
ast_log(LOG_ERROR, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
sqlite_freemem(errormsg);
return 1;
}
sqlite_freemem(errormsg);
return 0;
}
static int add_cfg_entry(void *arg, int argc, char **argv, char **columnNames)
{
struct cfg_entry_args *args;
struct ast_variable *var;
if (argc != RES_CONFIG_SQLITE_CONFIG_COLUMNS) {
ast_log(LOG_WARNING, "Corrupt table\n");
return 1;
}
args = arg;
if (!strcmp(argv[RES_CONFIG_SQLITE_CONFIG_VAR_NAME], "#include")) {
struct ast_config *cfg;
char *val;
val = argv[RES_CONFIG_SQLITE_CONFIG_VAR_VAL];
cfg = ast_config_internal_load(val, args->cfg, args->flags, "", args->who_asked);
if (!cfg) {
ast_log(LOG_WARNING, "Unable to include %s\n", val);
return 1;
} else {
args->cfg = cfg;
return 0;
}
}
if (!args->cat_name || strcmp(args->cat_name, argv[RES_CONFIG_SQLITE_CONFIG_CATEGORY])) {
args->cat = ast_category_new(argv[RES_CONFIG_SQLITE_CONFIG_CATEGORY], "", 99999);
if (!args->cat) {
ast_log(LOG_WARNING, "Unable to allocate category\n");
return 1;
}
ast_free(args->cat_name);
args->cat_name = ast_strdup(argv[RES_CONFIG_SQLITE_CONFIG_CATEGORY]);
if (!args->cat_name) {
ast_category_destroy(args->cat);
return 1;
}
ast_category_append(args->cfg, args->cat);
}
var = ast_variable_new(argv[RES_CONFIG_SQLITE_CONFIG_VAR_NAME], argv[RES_CONFIG_SQLITE_CONFIG_VAR_VAL], "");
if (!var) {
ast_log(LOG_WARNING, "Unable to allocate variable");
return 1;
}
ast_variable_append(args->cat, var);
return 0;
}
static struct ast_config *config_handler(const char *database, const char *table, const char *file,
struct ast_config *cfg, struct ast_flags flags, const char *suggested_incl, const char *who_asked)
{
struct cfg_entry_args args;
char *query, *errormsg = NULL;
int error;
if (!config_table) {
if (!table) {
ast_log(LOG_ERROR, "Table name unspecified\n");
return NULL;
}
} else
table = config_table;
query = sqlite_mprintf(sql_get_config_table, table, file);
if (!query) {
ast_log(LOG_WARNING, "Unable to allocate SQL query\n");
return NULL;
}
ast_debug(1, "SQL query: %s\n", query);
args.cfg = cfg;
args.cat = NULL;
args.cat_name = NULL;
args.flags = flags;
args.who_asked = who_asked;
ast_mutex_lock(&mutex);
RES_CONFIG_SQLITE_BEGIN
error = sqlite_exec(db, query, add_cfg_entry, &args, &errormsg);
RES_CONFIG_SQLITE_END(error)
ast_mutex_unlock(&mutex);
ast_free(args.cat_name);
sqlite_freemem(query);
if (error) {
ast_log(LOG_ERROR, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
sqlite_freemem(errormsg);
return NULL;
}
sqlite_freemem(errormsg);
return cfg;
}
static size_t get_params(va_list ap, const char ***params_ptr, const char ***vals_ptr, int warn)
{
const char **tmp, *param, *val, **params, **vals;
size_t params_count;
params = NULL;
vals = NULL;
params_count = 0;
while ((param = va_arg(ap, const char *)) && (val = va_arg(ap, const char *))) {
if (!(tmp = ast_realloc(params, (params_count + 1) * sizeof(char *)))) {
ast_free(params);
ast_free(vals);
return 0;
}
params = tmp;
if (!(tmp = ast_realloc(vals, (params_count + 1) * sizeof(char *)))) {
ast_free(params);
ast_free(vals);
return 0;
}
vals = tmp;
params[params_count] = param;
vals[params_count] = val;
params_count++;
}
if (params_count > 0) {
*params_ptr = params;
*vals_ptr = vals;
} else if (warn) {
ast_log(LOG_WARNING, "1 parameter and 1 value at least required\n");
}
return params_count;
}
static int add_rt_cfg_entry(void *arg, int argc, char **argv, char **columnNames)
{
struct rt_cfg_entry_args *args;
struct ast_variable *var;
int i;
args = arg;
for (i = 0; i < argc; i++) {
if (!argv[i])
continue;
if (!(var = ast_variable_new(columnNames[i], argv[i], "")))
return 1;
if (!args->var)
args->var = var;
if (!args->last)
args->last = var;
else {
args->last->next = var;
args->last = var;
}
}
return 0;
}
static struct ast_variable * realtime_handler(const char *database, const char *table, va_list ap)
{
char *query, *errormsg = NULL, *op, *tmp_str;
struct rt_cfg_entry_args args;
const char **params, **vals;
size_t params_count;
int error;
if (!table) {
ast_log(LOG_WARNING, "Table name unspecified\n");
return NULL;
}
params_count = get_params(ap, &params, &vals, 1);
if (params_count == 0)
return NULL;
op = (strchr(params[0], ' ') == NULL) ? " =" : "";
/* \cond DOXYGEN_CAN_PARSE_THIS */
#undef QUERY
#define QUERY "SELECT * FROM '%q' WHERE%s %q%s '%q'"
/* \endcond */
query = sqlite_mprintf(QUERY, table, !strcmp(config_table, table) ? " commented = 0 AND" : "", params[0], op, vals[0]);
if (!query) {
ast_log(LOG_WARNING, "Unable to allocate SQL query\n");
ast_free(params);
ast_free(vals);
return NULL;
}
if (params_count > 1) {
size_t i;
for (i = 1; i < params_count; i++) {
op = (strchr(params[i], ' ') == NULL) ? " =" : "";
tmp_str = sqlite_mprintf("%s AND %q%s '%q'", query, params[i], op, vals[i]);
sqlite_freemem(query);
if (!tmp_str) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
ast_free(params);
ast_free(vals);
return NULL;
}
query = tmp_str;
}
}
ast_free(params);
ast_free(vals);
tmp_str = sqlite_mprintf("%s LIMIT 1;", query);
sqlite_freemem(query);
if (!tmp_str) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
return NULL;
}
query = tmp_str;
ast_debug(1, "SQL query: %s\n", query);
args.var = NULL;
args.last = NULL;
ast_mutex_lock(&mutex);
RES_CONFIG_SQLITE_BEGIN
error = sqlite_exec(db, query, add_rt_cfg_entry, &args, &errormsg);
RES_CONFIG_SQLITE_END(error)
ast_mutex_unlock(&mutex);
sqlite_freemem(query);
if (error) {
ast_log(LOG_WARNING, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
sqlite_freemem(errormsg);
ast_variables_destroy(args.var);
return NULL;
}
sqlite_freemem(errormsg);
return args.var;
}
static int add_rt_multi_cfg_entry(void *arg, int argc, char **argv, char **columnNames)
{
struct rt_multi_cfg_entry_args *args;
struct ast_category *cat;
struct ast_variable *var;
char *cat_name;
size_t i;
args = arg;
cat_name = NULL;
/*
* cat_name should always be set here, since initfield is forged from
* params[0] in realtime_multi_handler(), which is a search parameter
* of the SQL query.
*/
for (i = 0; i < argc; i++) {
if (!strcmp(args->initfield, columnNames[i]))
cat_name = argv[i];
}
if (!cat_name) {
ast_log(LOG_ERROR, "Bogus SQL results, cat_name is NULL !\n");
return 1;
}
if (!(cat = ast_category_new(cat_name, "", 99999))) {
ast_log(LOG_WARNING, "Unable to allocate category\n");
return 1;
}
ast_category_append(args->cfg, cat);
for (i = 0; i < argc; i++) {
if (!argv[i] || !strcmp(args->initfield, columnNames[i]))
continue;
if (!(var = ast_variable_new(columnNames[i], argv[i], ""))) {
ast_log(LOG_WARNING, "Unable to allocate variable\n");
return 1;
}
ast_variable_append(cat, var);
}
return 0;
}
static struct ast_config *realtime_multi_handler(const char *database,
const char *table, va_list ap)
{
char *query, *errormsg = NULL, *op, *tmp_str, *initfield;
struct rt_multi_cfg_entry_args args;
const char **params, **vals;
struct ast_config *cfg;
size_t params_count;
int error;
if (!table) {
ast_log(LOG_WARNING, "Table name unspecified\n");
return NULL;
}
if (!(cfg = ast_config_new())) {
ast_log(LOG_WARNING, "Unable to allocate configuration structure\n");
return NULL;
}
if (!(params_count = get_params(ap, &params, &vals, 1))) {
ast_config_destroy(cfg);
return NULL;
}
if (!(initfield = ast_strdup(params[0]))) {
ast_config_destroy(cfg);
ast_free(params);
ast_free(vals);
return NULL;
}
tmp_str = strchr(initfield, ' ');
if (tmp_str)
*tmp_str = '\0';
op = (!strchr(params[0], ' ')) ? " =" : "";
/*
* Asterisk sends us an already escaped string when searching for
* "exten LIKE" (uh!). Handle it separately.
*/
tmp_str = (!strcmp(vals[0], "\\_%")) ? "_%" : (char *)vals[0];
/* \cond DOXYGEN_CAN_PARSE_THIS */
#undef QUERY
#define QUERY "SELECT * FROM '%q' WHERE commented = 0 AND %q%s '%q'"
/* \endcond */
if (!(query = sqlite_mprintf(QUERY, table, params[0], op, tmp_str))) {
ast_log(LOG_WARNING, "Unable to allocate SQL query\n");
ast_config_destroy(cfg);
ast_free(params);
ast_free(vals);
ast_free(initfield);
return NULL;
}
if (params_count > 1) {
size_t i;
for (i = 1; i < params_count; i++) {
op = (!strchr(params[i], ' ')) ? " =" : "";
tmp_str = sqlite_mprintf("%s AND %q%s '%q'", query, params[i], op, vals[i]);
sqlite_freemem(query);
if (!tmp_str) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
ast_config_destroy(cfg);
ast_free(params);
ast_free(vals);
ast_free(initfield);
return NULL;
}
query = tmp_str;
}
}
ast_free(params);
ast_free(vals);
if (!(tmp_str = sqlite_mprintf("%s ORDER BY %q;", query, initfield))) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
sqlite_freemem(query);
ast_config_destroy(cfg);
ast_free(initfield);
return NULL;
}
sqlite_freemem(query);
query = tmp_str;
ast_debug(1, "SQL query: %s\n", query);
args.cfg = cfg;
args.initfield = initfield;
ast_mutex_lock(&mutex);
RES_CONFIG_SQLITE_BEGIN
error = sqlite_exec(db, query, add_rt_multi_cfg_entry, &args, &errormsg);
RES_CONFIG_SQLITE_END(error)
ast_mutex_unlock(&mutex);
sqlite_freemem(query);
ast_free(initfield);
if (error) {
ast_log(LOG_WARNING, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
sqlite_freemem(errormsg);
ast_config_destroy(cfg);
return NULL;
}
sqlite_freemem(errormsg);
return cfg;
}
static int realtime_update_handler(const char *database, const char *table,
const char *keyfield, const char *entity, va_list ap)
{
char *query, *errormsg = NULL, *tmp_str;
const char **params, **vals;
size_t params_count;
int error, rows_num;
if (!table) {
ast_log(LOG_WARNING, "Table name unspecified\n");
return -1;
}
if (!(params_count = get_params(ap, &params, &vals, 1)))
return -1;
/* \cond DOXYGEN_CAN_PARSE_THIS */
#undef QUERY
#define QUERY "UPDATE '%q' SET %q = '%q'"
/* \endcond */
if (!(query = sqlite_mprintf(QUERY, table, params[0], vals[0]))) {
ast_log(LOG_WARNING, "Unable to allocate SQL query\n");
ast_free(params);
ast_free(vals);
return -1;
}
if (params_count > 1) {
size_t i;
for (i = 1; i < params_count; i++) {
tmp_str = sqlite_mprintf("%s, %q = '%q'", query, params[i], vals[i]);
sqlite_freemem(query);
if (!tmp_str) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
ast_free(params);
ast_free(vals);
return -1;
}
query = tmp_str;
}
}
ast_free(params);
ast_free(vals);
if (!(tmp_str = sqlite_mprintf("%s WHERE %q = '%q';", query, keyfield, entity))) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
sqlite_freemem(query);
return -1;
}
sqlite_freemem(query);
query = tmp_str;
ast_debug(1, "SQL query: %s\n", query);
ast_mutex_lock(&mutex);
RES_CONFIG_SQLITE_BEGIN
error = sqlite_exec(db, query, NULL, NULL, &errormsg);
RES_CONFIG_SQLITE_END(error)
if (!error)
rows_num = sqlite_changes(db);
else
rows_num = -1;
ast_mutex_unlock(&mutex);
sqlite_freemem(query);
if (error) {
ast_log(LOG_WARNING, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
}
sqlite_freemem(errormsg);
return rows_num;
}
static int realtime_update2_handler(const char *database, const char *table,
va_list ap)
{
char *errormsg = NULL, *tmp1, *tmp2;
int error, rows_num, first = 1;
struct ast_str *sql = ast_str_thread_get(&sql_buf, 100);
struct ast_str *where = ast_str_thread_get(&where_buf, 100);
const char *param, *value;
if (!table) {
ast_log(LOG_WARNING, "Table name unspecified\n");
return -1;
}
if (!sql) {
return -1;
}
ast_str_set(&sql, 0, "UPDATE %s SET", table);
ast_str_set(&where, 0, " WHERE");
while ((param = va_arg(ap, const char *))) {
value = va_arg(ap, const char *);
ast_str_append(&where, 0, "%s %s = %s",
first ? "" : " AND",
tmp1 = sqlite_mprintf("%q", param),
tmp2 = sqlite_mprintf("%Q", value));
sqlite_freemem(tmp1);
sqlite_freemem(tmp2);
first = 0;
}
if (first) {
ast_log(LOG_ERROR, "No criteria specified on update to '%s@%s'!\n", table, database);
return -1;
}
first = 1;
while ((param = va_arg(ap, const char *))) {
value = va_arg(ap, const char *);
ast_str_append(&sql, 0, "%s %s = %s",
first ? "" : ",",
tmp1 = sqlite_mprintf("%q", param),
tmp2 = sqlite_mprintf("%Q", value));
sqlite_freemem(tmp1);
sqlite_freemem(tmp2);
first = 0;
}
ast_str_append(&sql, 0, " %s", ast_str_buffer(where));
ast_debug(1, "SQL query: %s\n", ast_str_buffer(sql));
ast_mutex_lock(&mutex);
RES_CONFIG_SQLITE_BEGIN
error = sqlite_exec(db, ast_str_buffer(sql), NULL, NULL, &errormsg);
RES_CONFIG_SQLITE_END(error)
if (!error) {
rows_num = sqlite_changes(db);
} else {
rows_num = -1;
}
ast_mutex_unlock(&mutex);
if (error) {
ast_log(LOG_WARNING, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
}
sqlite_freemem(errormsg);
return rows_num;
}
static int realtime_store_handler(const char *database, const char *table, va_list ap)
{
char *errormsg = NULL, *tmp_str, *tmp_keys = NULL, *tmp_keys2 = NULL, *tmp_vals = NULL, *tmp_vals2 = NULL;
const char **params, **vals;
size_t params_count;
int error, rows_id;
size_t i;
if (!table) {
ast_log(LOG_WARNING, "Table name unspecified\n");
return -1;
}
if (!(params_count = get_params(ap, &params, &vals, 1)))
return -1;
/* \cond DOXYGEN_CAN_PARSE_THIS */
#undef QUERY
#define QUERY "INSERT into '%q' (%s) VALUES (%s);"
/* \endcond */
for (i = 0; i < params_count; i++) {
if ( tmp_keys2 ) {
tmp_keys = sqlite_mprintf("%s, %q", tmp_keys2, params[i]);
sqlite_freemem(tmp_keys2);
} else {
tmp_keys = sqlite_mprintf("%q", params[i]);
}
if (!tmp_keys) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
sqlite_freemem(tmp_vals);
ast_free(params);
ast_free(vals);
return -1;
}
if ( tmp_vals2 ) {
tmp_vals = sqlite_mprintf("%s, '%q'", tmp_vals2, vals[i]);
sqlite_freemem(tmp_vals2);
} else {
tmp_vals = sqlite_mprintf("'%q'", vals[i]);
}
if (!tmp_vals) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
sqlite_freemem(tmp_keys);
ast_free(params);
ast_free(vals);
return -1;
}
tmp_keys2 = tmp_keys;
tmp_vals2 = tmp_vals;
}
ast_free(params);
ast_free(vals);
if (!(tmp_str = sqlite_mprintf(QUERY, table, tmp_keys, tmp_vals))) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
sqlite_freemem(tmp_keys);
sqlite_freemem(tmp_vals);
return -1;
}
sqlite_freemem(tmp_keys);
sqlite_freemem(tmp_vals);
ast_debug(1, "SQL query: %s\n", tmp_str);
ast_mutex_lock(&mutex);
RES_CONFIG_SQLITE_BEGIN
error = sqlite_exec(db, tmp_str, NULL, NULL, &errormsg);
RES_CONFIG_SQLITE_END(error)
if (!error) {
rows_id = sqlite_last_insert_rowid(db);
} else {
rows_id = -1;
}
ast_mutex_unlock(&mutex);
sqlite_freemem(tmp_str);
if (error) {
ast_log(LOG_WARNING, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
}
sqlite_freemem(errormsg);
return rows_id;
}
static int realtime_destroy_handler(const char *database, const char *table,
const char *keyfield, const char *entity, va_list ap)
{
char *query, *errormsg = NULL, *tmp_str;
const char **params = NULL, **vals = NULL;
size_t params_count;
int error, rows_num;
size_t i;
if (!table) {
ast_log(LOG_WARNING, "Table name unspecified\n");
return -1;
}
params_count = get_params(ap, &params, &vals, 0);
/* \cond DOXYGEN_CAN_PARSE_THIS */
#undef QUERY
#define QUERY "DELETE FROM '%q' WHERE"
/* \endcond */
if (!(query = sqlite_mprintf(QUERY, table))) {
ast_log(LOG_WARNING, "Unable to allocate SQL query\n");
ast_free(params);
ast_free(vals);
return -1;
}
for (i = 0; i < params_count; i++) {
tmp_str = sqlite_mprintf("%s %q = '%q' AND", query, params[i], vals[i]);
sqlite_freemem(query);
if (!tmp_str) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
ast_free(params);
ast_free(vals);
return -1;
}
query = tmp_str;
}
ast_free(params);
ast_free(vals);
if (!(tmp_str = sqlite_mprintf("%s %q = '%q';", query, keyfield, entity))) {
ast_log(LOG_WARNING, "Unable to reallocate SQL query\n");
sqlite_freemem(query);
return -1;
}
sqlite_freemem(query);
query = tmp_str;
ast_debug(1, "SQL query: %s\n", query);
ast_mutex_lock(&mutex);
RES_CONFIG_SQLITE_BEGIN
error = sqlite_exec(db, query, NULL, NULL, &errormsg);
RES_CONFIG_SQLITE_END(error)
if (!error) {
rows_num = sqlite_changes(db);
} else {
rows_num = -1;
}
ast_mutex_unlock(&mutex);
sqlite_freemem(query);
if (error) {
ast_log(LOG_WARNING, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
}
sqlite_freemem(errormsg);
return rows_num;
}
static int realtime_require_handler(const char *unused, const char *tablename, va_list ap)
{
struct sqlite_cache_tables *tbl = find_table(tablename);
struct sqlite_cache_columns *col;
char *elm;
int type, size, res = 0;
if (!tbl) {
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(&tbl->columns, col, list) {
if (strcmp(col->name, elm) == 0) {
/* SQLite only has two types - the 32-bit integer field that
* is the key column, and everything else (everything else
* being a string).
*/
if (col->isint && !ast_rq_is_int(type)) {
ast_log(LOG_WARNING, "Realtime table %s: column '%s' is an integer field, but Asterisk requires that it not be!\n", tablename, col->name);
res = -1;
}
break;
}
}
if (!col) {
ast_log(LOG_WARNING, "Realtime table %s requires column '%s', but that column does not exist!\n", tablename, elm);
}
}
AST_RWLIST_UNLOCK(&(tbl->columns));
return res;
}
static int realtime_unload_handler(const char *unused, const char *tablename)
{
struct sqlite_cache_tables *tbl;
AST_RWLIST_WRLOCK(&sqlite_tables);
AST_RWLIST_TRAVERSE_SAFE_BEGIN(&sqlite_tables, tbl, list) {
if (!strcasecmp(tbl->name, tablename)) {
AST_RWLIST_REMOVE_CURRENT(list);
free_table(tbl);
}
}
AST_RWLIST_TRAVERSE_SAFE_END
AST_RWLIST_UNLOCK(&sqlite_tables);
return 0;
}
static char *handle_cli_show_sqlite_status(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
switch (cmd) {
case CLI_INIT:
e->command = "sqlite show status";
e->usage =
"Usage: sqlite show status\n"
" Show status information about the SQLite 2 driver\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc != 3)
return CLI_SHOWUSAGE;
ast_cli(a->fd, "SQLite database path: %s\n", dbfile);
ast_cli(a->fd, "config_table: ");
if (!config_table)
ast_cli(a->fd, "unspecified, must be present in extconfig.conf\n");
else
ast_cli(a->fd, "%s\n", config_table);
ast_cli(a->fd, "cdr_table: ");
if (!cdr_table)
ast_cli(a->fd, "unspecified, CDR support disabled\n");
else
ast_cli(a->fd, "%s\n", cdr_table);
return CLI_SUCCESS;
}
static char *handle_cli_sqlite_show_tables(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct sqlite_cache_tables *tbl;
struct sqlite_cache_columns *col;
int found = 0;
switch (cmd) {
case CLI_INIT:
e->command = "sqlite show tables";
e->usage =
"Usage: sqlite show tables\n"
" Show table information about the SQLite 2 driver\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc != 3)
return CLI_SHOWUSAGE;
AST_RWLIST_RDLOCK(&sqlite_tables);
AST_RWLIST_TRAVERSE(&sqlite_tables, tbl, list) {
found++;
ast_cli(a->fd, "Table %s:\n", tbl->name);
AST_RWLIST_TRAVERSE(&(tbl->columns), col, list) {
fprintf(stderr, "%s\n", col->name);
ast_cli(a->fd, " %20.20s %-30.30s\n", col->name, col->type);
}
}
AST_RWLIST_UNLOCK(&sqlite_tables);
if (!found) {
ast_cli(a->fd, "No tables currently in cache\n");
}
return CLI_SUCCESS;
}
static int unload_module(void)
{
if (cli_status_registered)
ast_cli_unregister_multiple(cli_status, ARRAY_LEN(cli_status));
if (cdr_registered)
ast_cdr_unregister(RES_CONFIG_SQLITE_NAME);
ast_config_engine_deregister(&sqlite_engine);
if (db)
sqlite_close(db);
unload_config();
return 0;
}
static int load_module(void)
{
char *errormsg = NULL;
int error;
db = NULL;
cdr_registered = 0;
cli_status_registered = 0;
dbfile = NULL;
config_table = NULL;
cdr_table = NULL;
error = load_config();
if (error)
return AST_MODULE_LOAD_DECLINE;
if (!(db = sqlite_open(dbfile, 0660, &errormsg))) {
ast_log(LOG_ERROR, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
sqlite_freemem(errormsg);
unload_module();
return 1;
}
sqlite_freemem(errormsg);
errormsg = NULL;
ast_config_engine_register(&sqlite_engine);
if (use_cdr) {
char *query;
/* \cond DOXYGEN_CAN_PARSE_THIS */
#undef QUERY
#define QUERY "SELECT COUNT(id) FROM %Q;"
/* \endcond */
query = sqlite_mprintf(QUERY, cdr_table);
if (!query) {
ast_log(LOG_ERROR, "Unable to allocate SQL query\n");
unload_module();
return 1;
}
ast_debug(1, "SQL query: %s\n", query);
RES_CONFIG_SQLITE_BEGIN
error = sqlite_exec(db, query, NULL, NULL, &errormsg);
RES_CONFIG_SQLITE_END(error)
sqlite_freemem(query);
if (error) {
/*
* Unexpected error.
*/
if (error != SQLITE_ERROR) {
ast_log(LOG_ERROR, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
sqlite_freemem(errormsg);
unload_module();
return 1;
}
sqlite_freemem(errormsg);
errormsg = NULL;
query = sqlite_mprintf(sql_create_cdr_table, cdr_table);
if (!query) {
ast_log(LOG_ERROR, "Unable to allocate SQL query\n");
unload_module();
return 1;
}
ast_debug(1, "SQL query: %s\n", query);
RES_CONFIG_SQLITE_BEGIN
error = sqlite_exec(db, query, NULL, NULL, &errormsg);
RES_CONFIG_SQLITE_END(error)
sqlite_freemem(query);
if (error) {
ast_log(LOG_ERROR, "%s\n", S_OR(errormsg, sqlite_error_string(error)));
sqlite_freemem(errormsg);
unload_module();
return 1;
}
}
sqlite_freemem(errormsg);
errormsg = NULL;
error = ast_cdr_register(RES_CONFIG_SQLITE_NAME, RES_CONFIG_SQLITE_DESCRIPTION, cdr_handler);
if (error) {
unload_module();
return 1;
}
cdr_registered = 1;
}
error = ast_cli_register_multiple(cli_status, ARRAY_LEN(cli_status));
if (error) {
unload_module();
return 1;
}
cli_status_registered = 1;
return 0;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Realtime SQLite configuration",
.load = load_module,
.unload = unload_module,
);
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