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Diffstat (limited to 'res/res_config_pgsql.c')
| -rw-r--r-- | res/res_config_pgsql.c | 842 |
1 files changed, 842 insertions, 0 deletions
diff --git a/res/res_config_pgsql.c b/res/res_config_pgsql.c new file mode 100644 index 000000000..494497033 --- /dev/null +++ b/res/res_config_pgsql.c @@ -0,0 +1,842 @@ +/* + * Asterisk -- A telephony toolkit for Linux. + * + * Copyright (C) 1999-2005, Digium, Inc. + * + * Manuel Guesdon <mguesdon@oxymium.net> - Postgresql RealTime Driver Author/Adaptor + * Mark Spencer <markster@digium.com> - Asterisk Author + * Matthew Boehm <mboehm@cytelcom.com> - MySQL RealTime Driver Author + * + * res_config_pgsql.c <Postgresql plugin for RealTime configuration engine> + * + * v1.0 - (07-11-05) - Initial version based on res_config_mysql v2.0 + */ + +/*! \file + * + * \brief Postgresql plugin for Asterisk RealTime Architecture + * + * \author Mark Spencer <markster@digium.com> + * \author Manuel Guesdon <mguesdon@oxymium.net> - Postgresql RealTime Driver Author/Adaptor + * + * \arg http://www.postgresql.org + */ + +/*** MODULEINFO + <depend>pgsql</depend> + ***/ + +#include "asterisk.h" + +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <libpq-fe.h> /* PostgreSQL */ + +#include "asterisk/file.h" +#include "asterisk/logger.h" +#include "asterisk/channel.h" +#include "asterisk/pbx.h" +#include "asterisk/config.h" +#include "asterisk/module.h" +#include "asterisk/lock.h" +#include "asterisk/options.h" +#include "asterisk/utils.h" +#include "asterisk/cli.h" + +AST_MUTEX_DEFINE_STATIC(pgsql_lock); + +#define RES_CONFIG_PGSQL_CONF "res_pgsql.conf" + +PGconn *pgsqlConn = NULL; + +#define MAX_DB_OPTION_SIZE 64 + +static char dbhost[MAX_DB_OPTION_SIZE] = ""; +static char dbuser[MAX_DB_OPTION_SIZE] = ""; +static char dbpass[MAX_DB_OPTION_SIZE] = ""; +static char dbname[MAX_DB_OPTION_SIZE] = ""; +static char dbsock[MAX_DB_OPTION_SIZE] = ""; +static int dbport = 5432; +static time_t connect_time = 0; + +static int parse_config(void); +static int pgsql_reconnect(const char *database); +static int realtime_pgsql_status(int fd, int argc, char **argv); + +static char cli_realtime_pgsql_status_usage[] = + "Usage: realtime pgsql status\n" + " Shows connection information for the Postgresql RealTime driver\n"; + +static struct ast_cli_entry cli_realtime[] = { + { { "realtime", "pgsql", "status", NULL }, + realtime_pgsql_status, "Shows connection information for the Postgresql RealTime driver", + cli_realtime_pgsql_status_usage }, +}; + +static struct ast_variable *realtime_pgsql(const char *database, const char *table, va_list ap) +{ + PGresult *result = NULL; + int num_rows = 0, pgerror; + char sql[256], escapebuf[513]; + char *stringp; + char *chunk; + char *op; + const char *newparam, *newval; + struct ast_variable *var = NULL, *prev = NULL; + + if (!table) { + ast_log(LOG_WARNING, "Postgresql RealTime: No table specified.\n"); + return NULL; + } + + /* Get the first parameter and first value in our list of passed paramater/value pairs */ + newparam = va_arg(ap, const char *); + newval = va_arg(ap, const char *); + if (!newparam || !newval) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n"); + if (pgsqlConn) { + PQfinish(pgsqlConn); + pgsqlConn = NULL; + }; + return NULL; + } + + /* Create the first part of the query using the first parameter/value pairs we just extracted + If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */ + op = strchr(newparam, ' ') ? "" : " ="; + + PQescapeStringConn(pgsqlConn, escapebuf, newval, (sizeof(escapebuf) - 1) / 2, &pgerror); + if (pgerror) { + ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval); + va_end(ap); + return NULL; + } + + snprintf(sql, sizeof(sql), "SELECT * FROM %s WHERE %s%s '%s'", table, newparam, op, + escapebuf); + while ((newparam = va_arg(ap, const char *))) { + newval = va_arg(ap, const char *); + if (!strchr(newparam, ' ')) + op = " ="; + else + op = ""; + + PQescapeStringConn(pgsqlConn, escapebuf, newval, (sizeof(escapebuf) - 1) / 2, &pgerror); + if (pgerror) { + ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval); + va_end(ap); + return NULL; + } + + snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " AND %s%s '%s'", newparam, + op, escapebuf); + } + va_end(ap); + + /* We now have our complete statement; Lets connect to the server and execute it. */ + ast_mutex_lock(&pgsql_lock); + if (!pgsql_reconnect(database)) { + ast_mutex_unlock(&pgsql_lock); + return NULL; + } + + if (!(result = PQexec(pgsqlConn, sql))) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Failed to query database. Check debug for more info.\n"); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s\n", + PQerrorMessage(pgsqlConn)); + ast_mutex_unlock(&pgsql_lock); + return NULL; + } else { + ExecStatusType result_status = PQresultStatus(result); + if (result_status != PGRES_COMMAND_OK + && result_status != PGRES_TUPLES_OK + && result_status != PGRES_NONFATAL_ERROR) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Failed to query database. Check debug for more info.\n"); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s (%s)\n", + PQresultErrorMessage(result), PQresStatus(result_status)); + ast_mutex_unlock(&pgsql_lock); + return NULL; + } + } + + ast_log(LOG_DEBUG, "1Postgresql RealTime: Result=%p Query: %s\n", result, sql); + + if ((num_rows = PQntuples(result)) > 0) { + int i = 0; + int rowIndex = 0; + int numFields = PQnfields(result); + char **fieldnames = NULL; + + ast_log(LOG_DEBUG, "Postgresql RealTime: Found %d rows.\n", num_rows); + + if (!(fieldnames = ast_calloc(1, numFields * sizeof(char *)))) { + ast_mutex_unlock(&pgsql_lock); + PQclear(result); + return NULL; + } + for (i = 0; i < numFields; i++) + fieldnames[i] = PQfname(result, i); + for (rowIndex = 0; rowIndex < num_rows; rowIndex++) { + for (i = 0; i < numFields; i++) { + stringp = PQgetvalue(result, rowIndex, i); + while (stringp) { + chunk = strsep(&stringp, ";"); + if (chunk && !ast_strlen_zero(ast_strip(chunk))) { + if (prev) { + prev->next = ast_variable_new(fieldnames[i], chunk); + if (prev->next) { + prev = prev->next; + } + } else { + prev = var = ast_variable_new(fieldnames[i], chunk); + } + } + } + } + } + ast_free(fieldnames); + } else { + ast_log(LOG_DEBUG, "Postgresql RealTime: Could not find any rows in table %s.\n", table); + } + + ast_mutex_unlock(&pgsql_lock); + PQclear(result); + + return var; +} + +static struct ast_config *realtime_multi_pgsql(const char *database, const char *table, va_list ap) +{ + PGresult *result = NULL; + int num_rows = 0, pgerror; + char sql[256], escapebuf[513]; + const char *initfield = NULL; + char *stringp; + char *chunk; + char *op; + const char *newparam, *newval; + struct ast_realloca ra; + struct ast_variable *var = NULL; + struct ast_config *cfg = NULL; + struct ast_category *cat = NULL; + + if (!table) { + ast_log(LOG_WARNING, "Postgresql RealTime: No table specified.\n"); + return NULL; + } + + memset(&ra, 0, sizeof(ra)); + + if (!(cfg = ast_config_new())) + return NULL; + + /* Get the first parameter and first value in our list of passed paramater/value pairs */ + newparam = va_arg(ap, const char *); + newval = va_arg(ap, const char *); + if (!newparam || !newval) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n"); + if (pgsqlConn) { + PQfinish(pgsqlConn); + pgsqlConn = NULL; + }; + return NULL; + } + + initfield = ast_strdupa(newparam); + if ((op = strchr(initfield, ' '))) { + *op = '\0'; + } + + /* Create the first part of the query using the first parameter/value pairs we just extracted + If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */ + + if (!strchr(newparam, ' ')) + op = " ="; + else + op = ""; + + PQescapeStringConn(pgsqlConn, escapebuf, newval, (sizeof(escapebuf) - 1) / 2, &pgerror); + if (pgerror) { + ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval); + va_end(ap); + return NULL; + } + + snprintf(sql, sizeof(sql), "SELECT * FROM %s WHERE %s%s '%s'", table, newparam, op, + escapebuf); + while ((newparam = va_arg(ap, const char *))) { + newval = va_arg(ap, const char *); + if (!strchr(newparam, ' ')) + op = " ="; + else + op = ""; + + PQescapeStringConn(pgsqlConn, escapebuf, newval, (sizeof(escapebuf) - 1) / 2, &pgerror); + if (pgerror) { + ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval); + va_end(ap); + return NULL; + } + + snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " AND %s%s '%s'", newparam, + op, escapebuf); + } + + if (initfield) { + snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " ORDER BY %s", initfield); + } + + va_end(ap); + + /* We now have our complete statement; Lets connect to the server and execute it. */ + ast_mutex_lock(&pgsql_lock); + if (!pgsql_reconnect(database)) { + ast_mutex_unlock(&pgsql_lock); + return NULL; + } + + if (!(result = PQexec(pgsqlConn, sql))) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Failed to query database. Check debug for more info.\n"); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s\n", + PQerrorMessage(pgsqlConn)); + ast_mutex_unlock(&pgsql_lock); + return NULL; + } else { + ExecStatusType result_status = PQresultStatus(result); + if (result_status != PGRES_COMMAND_OK + && result_status != PGRES_TUPLES_OK + && result_status != PGRES_NONFATAL_ERROR) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Failed to query database. Check debug for more info.\n"); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s (%s)\n", + PQresultErrorMessage(result), PQresStatus(result_status)); + ast_mutex_unlock(&pgsql_lock); + return NULL; + } + } + + ast_log(LOG_DEBUG, "2Postgresql RealTime: Result=%p Query: %s\n", result, sql); + + if ((num_rows = PQntuples(result)) > 0) { + int numFields = PQnfields(result); + int i = 0; + int rowIndex = 0; + char **fieldnames = NULL; + + ast_log(LOG_DEBUG, "Postgresql RealTime: Found %d rows.\n", num_rows); + + if (!(fieldnames = ast_calloc(1, numFields * sizeof(char *)))) { + ast_mutex_unlock(&pgsql_lock); + PQclear(result); + return NULL; + } + for (i = 0; i < numFields; i++) + fieldnames[i] = PQfname(result, i); + + for (rowIndex = 0; rowIndex < num_rows; rowIndex++) { + var = NULL; + if (!(cat = ast_category_new(""))) + continue; + for (i = 0; i < numFields; i++) { + stringp = PQgetvalue(result, rowIndex, i); + while (stringp) { + chunk = strsep(&stringp, ";"); + if (chunk && !ast_strlen_zero(ast_strip(chunk))) { + if (initfield && !strcmp(initfield, fieldnames[i])) { + ast_category_rename(cat, chunk); + } + var = ast_variable_new(fieldnames[i], chunk); + ast_variable_append(cat, var); + } + } + } + ast_category_append(cfg, cat); + } + ast_free(fieldnames); + } else { + ast_log(LOG_WARNING, + "Postgresql RealTime: Could not find any rows in table %s.\n", table); + } + + ast_mutex_unlock(&pgsql_lock); + PQclear(result); + + return cfg; +} + +static int update_pgsql(const char *database, const char *table, const char *keyfield, + const char *lookup, va_list ap) +{ + PGresult *result = NULL; + int numrows = 0, pgerror; + char sql[256], escapebuf[513]; + const char *newparam, *newval; + + if (!table) { + ast_log(LOG_WARNING, "Postgresql RealTime: No table specified.\n"); + return -1; + } + + /* Get the first parameter and first value in our list of passed paramater/value pairs */ + newparam = va_arg(ap, const char *); + newval = va_arg(ap, const char *); + if (!newparam || !newval) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n"); + if (pgsqlConn) { + PQfinish(pgsqlConn); + pgsqlConn = NULL; + }; + return -1; + } + + /* Create the first part of the query using the first parameter/value pairs we just extracted + If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */ + + PQescapeStringConn(pgsqlConn, escapebuf, newval, (sizeof(escapebuf) - 1) / 2, &pgerror); + if (pgerror) { + ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval); + va_end(ap); + return -1; + } + snprintf(sql, sizeof(sql), "UPDATE %s SET %s = '%s'", table, newparam, escapebuf); + + while ((newparam = va_arg(ap, const char *))) { + newval = va_arg(ap, const char *); + + PQescapeStringConn(pgsqlConn, escapebuf, newval, (sizeof(escapebuf) - 1) / 2, &pgerror); + if (pgerror) { + ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval); + va_end(ap); + return -1; + } + + snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), ", %s = '%s'", newparam, + escapebuf); + } + va_end(ap); + + PQescapeStringConn(pgsqlConn, escapebuf, lookup, (sizeof(escapebuf) - 1) / 2, &pgerror); + if (pgerror) { + ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", lookup); + va_end(ap); + return -1; + } + + snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " WHERE %s = '%s'", keyfield, + escapebuf); + + ast_log(LOG_DEBUG, "Postgresql RealTime: Update SQL: %s\n", sql); + + /* We now have our complete statement; Lets connect to the server and execute it. */ + ast_mutex_lock(&pgsql_lock); + if (!pgsql_reconnect(database)) { + ast_mutex_unlock(&pgsql_lock); + return -1; + } + + if (!(result = PQexec(pgsqlConn, sql))) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Failed to query database. Check debug for more info.\n"); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s\n", + PQerrorMessage(pgsqlConn)); + ast_mutex_unlock(&pgsql_lock); + return -1; + } else { + ExecStatusType result_status = PQresultStatus(result); + if (result_status != PGRES_COMMAND_OK + && result_status != PGRES_TUPLES_OK + && result_status != PGRES_NONFATAL_ERROR) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Failed to query database. Check debug for more info.\n"); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s (%s)\n", + PQresultErrorMessage(result), PQresStatus(result_status)); + ast_mutex_unlock(&pgsql_lock); + return -1; + } + } + + numrows = atoi(PQcmdTuples(result)); + ast_mutex_unlock(&pgsql_lock); + + ast_log(LOG_DEBUG, "Postgresql RealTime: Updated %d rows on table: %s\n", numrows, + table); + + /* From http://dev.pgsql.com/doc/pgsql/en/pgsql-affected-rows.html + * An integer greater than zero indicates the number of rows affected + * Zero indicates that no records were updated + * -1 indicates that the query returned an error (although, if the query failed, it should have been caught above.) + */ + + if (numrows >= 0) + return (int) numrows; + + return -1; +} + +static struct ast_config *config_pgsql(const char *database, const char *table, + const char *file, struct ast_config *cfg, + int withcomments) +{ + PGresult *result = NULL; + long num_rows; + struct ast_variable *new_v; + struct ast_category *cur_cat = NULL; + char sqlbuf[1024] = ""; + char *sql = sqlbuf; + size_t sqlleft = sizeof(sqlbuf); + char last[80] = ""; + int last_cat_metric = 0; + + last[0] = '\0'; + + if (!file || !strcmp(file, RES_CONFIG_PGSQL_CONF)) { + ast_log(LOG_WARNING, "Postgresql RealTime: Cannot configure myself.\n"); + return NULL; + } + + ast_build_string(&sql, &sqlleft, "SELECT category, var_name, var_val, cat_metric 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 "); + + ast_log(LOG_DEBUG, "Postgresql RealTime: Static SQL: %s\n", sqlbuf); + + /* We now have our complete statement; Lets connect to the server and execute it. */ + ast_mutex_lock(&pgsql_lock); + if (!pgsql_reconnect(database)) { + ast_mutex_unlock(&pgsql_lock); + return NULL; + } + + if (!(result = PQexec(pgsqlConn, sqlbuf))) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Failed to query database. Check debug for more info.\n"); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s\n", + PQerrorMessage(pgsqlConn)); + ast_mutex_unlock(&pgsql_lock); + return NULL; + } else { + ExecStatusType result_status = PQresultStatus(result); + if (result_status != PGRES_COMMAND_OK + && result_status != PGRES_TUPLES_OK + && result_status != PGRES_NONFATAL_ERROR) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Failed to query database. Check debug for more info.\n"); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query: %s\n", sql); + ast_log(LOG_DEBUG, "Postgresql RealTime: Query Failed because: %s (%s)\n", + PQresultErrorMessage(result), PQresStatus(result_status)); + ast_mutex_unlock(&pgsql_lock); + return NULL; + } + } + + if ((num_rows = PQntuples(result)) > 0) { + int rowIndex = 0; + + ast_log(LOG_DEBUG, "Postgresql RealTime: Found %ld rows.\n", num_rows); + + for (rowIndex = 0; rowIndex < num_rows; rowIndex++) { + char *field_category = PQgetvalue(result, rowIndex, 0); + char *field_var_name = PQgetvalue(result, rowIndex, 1); + char *field_var_val = PQgetvalue(result, rowIndex, 2); + char *field_cat_metric = PQgetvalue(result, rowIndex, 3); + if (!strcmp(field_var_name, "#include")) { + if (!ast_config_internal_load(field_var_val, cfg, 0)) { + PQclear(result); + ast_mutex_unlock(&pgsql_lock); + return NULL; + } + continue; + } + + if (strcmp(last, field_category) || last_cat_metric != atoi(field_cat_metric)) { + cur_cat = ast_category_new(field_category); + if (!cur_cat) + break; + strcpy(last, field_category); + last_cat_metric = atoi(field_cat_metric); + ast_category_append(cfg, cur_cat); + } + new_v = ast_variable_new(field_var_name, field_var_val); + ast_variable_append(cur_cat, new_v); + } + } else { + ast_log(LOG_WARNING, + "Postgresql RealTime: Could not find config '%s' in database.\n", file); + } + + PQclear(result); + ast_mutex_unlock(&pgsql_lock); + + return cfg; +} + +static struct ast_config_engine pgsql_engine = { + .name = "pgsql", + .load_func = config_pgsql, + .realtime_func = realtime_pgsql, + .realtime_multi_func = realtime_multi_pgsql, + .update_func = update_pgsql +}; + +static int load_module(void) +{ + if(!parse_config()) + return AST_MODULE_LOAD_DECLINE; + + ast_mutex_lock(&pgsql_lock); + + if (!pgsql_reconnect(NULL)) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Couldn't establish connection. Check debug.\n"); + ast_log(LOG_DEBUG, "Postgresql RealTime: Cannot Connect: %s\n", + PQerrorMessage(pgsqlConn)); + } + + ast_config_engine_register(&pgsql_engine); + if (option_verbose) { + ast_verbose("Postgresql RealTime driver loaded.\n"); + } + ast_cli_register_multiple(cli_realtime, sizeof(cli_realtime) / sizeof(struct ast_cli_entry)); + + ast_mutex_unlock(&pgsql_lock); + + return 0; +} + +static int unload_module(void) +{ + /* Aquire control before doing anything to the module itself. */ + ast_mutex_lock(&pgsql_lock); + + if (pgsqlConn) { + PQfinish(pgsqlConn); + pgsqlConn = NULL; + }; + ast_cli_unregister_multiple(cli_realtime, sizeof(cli_realtime) / sizeof(struct ast_cli_entry)); + ast_config_engine_deregister(&pgsql_engine); + if (option_verbose) { + ast_verbose("Postgresql RealTime unloaded.\n"); + } + + ast_module_user_hangup_all(); + + /* Unlock so something else can destroy the lock. */ + ast_mutex_unlock(&pgsql_lock); + + return 0; +} + +static int reload(void) +{ + /* Aquire control before doing anything to the module itself. */ + ast_mutex_lock(&pgsql_lock); + + if (pgsqlConn) { + PQfinish(pgsqlConn); + pgsqlConn = NULL; + }; + parse_config(); + + if (!pgsql_reconnect(NULL)) { + ast_log(LOG_WARNING, + "Postgresql RealTime: Couldn't establish connection. Check debug.\n"); + ast_log(LOG_DEBUG, "Postgresql RealTime: Cannot Connect: %s\n", + PQerrorMessage(pgsqlConn)); + } + + ast_verbose(VERBOSE_PREFIX_2 "Postgresql RealTime reloaded.\n"); + + /* Done reloading. Release lock so others can now use driver. */ + ast_mutex_unlock(&pgsql_lock); + + return 0; +} + +static int parse_config(void) +{ + struct ast_config *config; + const char *s; + + config = ast_config_load(RES_CONFIG_PGSQL_CONF); + + if (!config) { + ast_log(LOG_WARNING, "Unable to load config %s\n",RES_CONFIG_PGSQL_CONF); + return 0; + } + if (!(s = ast_variable_retrieve(config, "general", "dbuser"))) { + ast_log(LOG_WARNING, + "Postgresql RealTime: No database user found, using 'asterisk' as default.\n"); + strcpy(dbuser, "asterisk"); + } else { + ast_copy_string(dbuser, s, sizeof(dbuser)); + } + + if (!(s = ast_variable_retrieve(config, "general", "dbpass"))) { + ast_log(LOG_WARNING, + "Postgresql RealTime: No database password found, using 'asterisk' as default.\n"); + strcpy(dbpass, "asterisk"); + } else { + ast_copy_string(dbpass, s, sizeof(dbpass)); + } + + if (!(s = ast_variable_retrieve(config, "general", "dbhost"))) { + ast_log(LOG_WARNING, + "Postgresql RealTime: No database host found, using localhost via socket.\n"); + dbhost[0] = '\0'; + } else { + ast_copy_string(dbhost, s, sizeof(dbhost)); + } + + if (!(s = ast_variable_retrieve(config, "general", "dbname"))) { + ast_log(LOG_WARNING, + "Postgresql RealTime: No database name found, using 'asterisk' as default.\n"); + strcpy(dbname, "asterisk"); + } else { + ast_copy_string(dbname, s, sizeof(dbname)); + } + + if (!(s = ast_variable_retrieve(config, "general", "dbport"))) { + ast_log(LOG_WARNING, + "Postgresql RealTime: No database port found, using 5432 as default.\n"); + dbport = 5432; + } else { + dbport = atoi(s); + } + + if (!ast_strlen_zero(dbhost)) { + /* No socket needed */ + } else if (!(s = ast_variable_retrieve(config, "general", "dbsock"))) { + ast_log(LOG_WARNING, + "Postgresql RealTime: No database socket found, using '/tmp/pgsql.sock' as default.\n"); + strcpy(dbsock, "/tmp/pgsql.sock"); + } else { + ast_copy_string(dbsock, s, sizeof(dbsock)); + } + ast_config_destroy(config); + + if (!ast_strlen_zero(dbhost)) { + ast_log(LOG_DEBUG, "Postgresql RealTime Host: %s\n", dbhost); + ast_log(LOG_DEBUG, "Postgresql RealTime Port: %i\n", dbport); + } else { + ast_log(LOG_DEBUG, "Postgresql RealTime Socket: %s\n", dbsock); + } + ast_log(LOG_DEBUG, "Postgresql RealTime User: %s\n", dbuser); + ast_log(LOG_DEBUG, "Postgresql RealTime Password: %s\n", dbpass); + ast_log(LOG_DEBUG, "Postgresql RealTime DBName: %s\n", dbname); + + return 1; +} + +static int pgsql_reconnect(const char *database) +{ + char my_database[50]; + + ast_copy_string(my_database, S_OR(database, dbname), sizeof(my_database)); + + /* mutex lock should have been locked before calling this function. */ + + if (pgsqlConn && PQstatus(pgsqlConn) != CONNECTION_OK) { + PQfinish(pgsqlConn); + pgsqlConn = NULL; + } + + if ((!pgsqlConn) && (!ast_strlen_zero(dbhost) || !ast_strlen_zero(dbsock)) && !ast_strlen_zero(dbuser) && !ast_strlen_zero(dbpass) && !ast_strlen_zero(my_database)) { + char *connInfo = NULL; + unsigned int size = 100 + strlen(dbhost) + + strlen(dbuser) + + strlen(dbpass) + + strlen(my_database); + + if (!(connInfo = ast_malloc(size))) + return 0; + + sprintf(connInfo, "host=%s port=%d dbname=%s user=%s password=%s", + dbhost, dbport, my_database, dbuser, dbpass); + ast_log(LOG_DEBUG, "%u connInfo=%s\n", size, connInfo); + pgsqlConn = PQconnectdb(connInfo); + ast_log(LOG_DEBUG, "%u connInfo=%s\n", size, connInfo); + ast_free(connInfo); + connInfo = NULL; + ast_log(LOG_DEBUG, "pgsqlConn=%p\n", pgsqlConn); + if (pgsqlConn && PQstatus(pgsqlConn) == CONNECTION_OK) { + ast_log(LOG_DEBUG, "Postgresql RealTime: Successfully connected to database.\n"); + connect_time = time(NULL); + return 1; + } else { + ast_log(LOG_ERROR, + "Postgresql RealTime: Failed to connect database server %s on %s. Check debug for more info.\n", + dbname, dbhost); + ast_log(LOG_DEBUG, "Postgresql RealTime: Cannot Connect: %s\n", + PQresultErrorMessage(NULL)); + return 0; + } + } else { + ast_log(LOG_DEBUG, "Postgresql RealTime: Everything is fine.\n"); + return 1; + } +} + +static int realtime_pgsql_status(int fd, int argc, char **argv) +{ + char status[256], status2[100] = ""; + int ctime = time(NULL) - connect_time; + + if (pgsqlConn && PQstatus(pgsqlConn) == CONNECTION_OK) { + if (!ast_strlen_zero(dbhost)) { + snprintf(status, 255, "Connected to %s@%s, port %d", dbname, dbhost, dbport); + } else if (!ast_strlen_zero(dbsock)) { + snprintf(status, 255, "Connected to %s on socket file %s", dbname, dbsock); + } else { + snprintf(status, 255, "Connected to %s@%s", dbname, dbhost); + } + + if (!ast_strlen_zero(dbuser)) { + snprintf(status2, 99, " with username %s", dbuser); + } + + if (ctime > 31536000) { + ast_cli(fd, "%s%s for %d years, %d days, %d hours, %d minutes, %d seconds.\n", + status, status2, ctime / 31536000, (ctime % 31536000) / 86400, + (ctime % 86400) / 3600, (ctime % 3600) / 60, ctime % 60); + } else if (ctime > 86400) { + ast_cli(fd, "%s%s for %d days, %d hours, %d minutes, %d seconds.\n", status, + status2, ctime / 86400, (ctime % 86400) / 3600, (ctime % 3600) / 60, + ctime % 60); + } else if (ctime > 3600) { + ast_cli(fd, "%s%s for %d hours, %d minutes, %d seconds.\n", status, status2, + ctime / 3600, (ctime % 3600) / 60, ctime % 60); + } else if (ctime > 60) { + ast_cli(fd, "%s%s for %d minutes, %d seconds.\n", status, status2, ctime / 60, + ctime % 60); + } else { + ast_cli(fd, "%s%s for %d seconds.\n", status, status2, ctime); + } + + return RESULT_SUCCESS; + } else { + return RESULT_FAILURE; + } +} + +/* needs usecount semantics defined */ +AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS, "PostgreSQL RealTime Configuration Driver", + .load = load_module, + .unload = unload_module, + .reload = reload + ); |