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-rw-r--r--trunk/res/res_config_pgsql.c1008
1 files changed, 1008 insertions, 0 deletions
diff --git a/trunk/res/res_config_pgsql.c b/trunk/res/res_config_pgsql.c
new file mode 100644
index 000000000..81da43456
--- /dev/null
+++ b/trunk/res/res_config_pgsql.c
@@ -0,0 +1,1008 @@
+/*
+ * 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 <libpq-fe.h> /* PostgreSQL */
+
+#include "asterisk/file.h"
+#include "asterisk/channel.h"
+#include "asterisk/pbx.h"
+#include "asterisk/config.h"
+#include "asterisk/module.h"
+#include "asterisk/lock.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(int reload);
+static int pgsql_reconnect(const char *database);
+static char *handle_cli_realtime_pgsql_status(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
+
+static struct ast_cli_entry cli_realtime[] = {
+ AST_CLI_DEFINE(handle_cli_realtime_pgsql_status, "Shows connection information for the PostgreSQL RealTime driver"),
+};
+
+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_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "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_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s (%s)\n",
+ PQresultErrorMessage(result), PQresStatus(result_status));
+ ast_mutex_unlock(&pgsql_lock);
+ return NULL;
+ }
+ }
+
+ ast_debug(1, "PostgreSQL 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_debug(1, "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 (!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_WARNING,
+ "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_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;
+ }
+
+ 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_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "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_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s (%s)\n",
+ PQresultErrorMessage(result), PQresStatus(result_status));
+ ast_mutex_unlock(&pgsql_lock);
+ return NULL;
+ }
+ }
+
+ ast_debug(1, "PostgreSQL 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_debug(1, "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("","",99999)))
+ continue;
+ for (i = 0; i < numFields; i++) {
+ stringp = PQgetvalue(result, rowIndex, i);
+ while (stringp) {
+ chunk = strsep(&stringp, ";");
+ if (!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_debug(1, "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_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "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_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "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_debug(1, "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 int store_pgsql(const char *database, const char *table, va_list ap)
+{
+ PGresult *result = NULL;
+ Oid insertid;
+ char sql[256];
+ char params[256];
+ char vals[256];
+ char buf[256];
+ int pgresult;
+ 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 storage requires at least 1 parameter and 1 value to store.\n");
+ if (pgsqlConn) {
+ PQfinish(pgsqlConn);
+ pgsqlConn = NULL;
+ };
+ return -1;
+ }
+
+ /* Must connect to the server before anything else, as the escape function requires the connection handle.. */
+ ast_mutex_lock(&pgsql_lock);
+ if (!pgsql_reconnect(database)) {
+ ast_mutex_unlock(&pgsql_lock);
+ 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, buf, newparam, sizeof(newparam), &pgresult);
+ snprintf(params, sizeof(params), "%s", buf);
+ PQescapeStringConn(pgsqlConn, buf, newval, sizeof(newval), &pgresult);
+ snprintf(vals, sizeof(vals), "'%s'", buf);
+ while ((newparam = va_arg(ap, const char *))) {
+ newval = va_arg(ap, const char *);
+ PQescapeStringConn(pgsqlConn, buf, newparam, sizeof(newparam), &pgresult);
+ snprintf(params + strlen(params), sizeof(params) - strlen(params), ", %s", buf);
+ PQescapeStringConn(pgsqlConn, buf, newval, sizeof(newval), &pgresult);
+ snprintf(vals + strlen(vals), sizeof(vals) - strlen(vals), ", '%s'", buf);
+ }
+ va_end(ap);
+ snprintf(sql, sizeof(sql), "INSERT INTO (%s) VALUES (%s)", params, vals);
+
+ ast_debug(1, "PostgreSQL RealTime: Insert SQL: %s\n", sql);
+
+ if (!(result = PQexec(pgsqlConn, sql))) {
+ ast_log(LOG_WARNING,
+ "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
+ ast_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "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_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s (%s)\n",
+ PQresultErrorMessage(result), PQresStatus(result_status));
+ ast_mutex_unlock(&pgsql_lock);
+ return -1;
+ }
+ }
+
+ insertid = PQoidValue(result);
+ ast_mutex_unlock(&pgsql_lock);
+
+ ast_debug(1, "PostgreSQL RealTime: row inserted on table: %s, id: %u\n", table, insertid);
+
+ /* 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 (insertid >= 0)
+ return (int) insertid;
+
+ return -1;
+}
+
+static int destroy_pgsql(const char *database, const char *table, const char *keyfield, const char *lookup, va_list ap)
+{
+ PGresult *result = NULL;
+ int numrows = 0;
+ int pgresult;
+ char sql[256];
+ char buf[256], buf2[256];
+ 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) {*/
+ if (ast_strlen_zero(keyfield) || ast_strlen_zero(lookup)) {
+ ast_log(LOG_WARNING,
+ "PostgreSQL RealTime: Realtime destroy requires at least 1 parameter and 1 value to search on.\n");
+ if (pgsqlConn) {
+ PQfinish(pgsqlConn);
+ pgsqlConn = NULL;
+ };
+ return -1;
+ }
+
+ /* Must connect to the server before anything else, as the escape function requires the connection handle.. */
+ ast_mutex_lock(&pgsql_lock);
+ if (!pgsql_reconnect(database)) {
+ ast_mutex_unlock(&pgsql_lock);
+ 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, buf, keyfield, sizeof(keyfield), &pgresult);
+ PQescapeStringConn(pgsqlConn, buf2, lookup, sizeof(lookup), &pgresult);
+ snprintf(sql, sizeof(sql), "DELETE FROM %s WHERE %s = '%s'", table, buf, buf2);
+ while ((newparam = va_arg(ap, const char *))) {
+ newval = va_arg(ap, const char *);
+ PQescapeStringConn(pgsqlConn, buf, newparam, sizeof(newparam), &pgresult);
+ PQescapeStringConn(pgsqlConn, buf2, newval, sizeof(newval), &pgresult);
+ snprintf(sql + strlen(sql), sizeof(sql) - strlen(sql), " AND %s = '%s'", buf, buf2);
+ }
+ va_end(ap);
+
+ ast_debug(1, "PostgreSQL RealTime: Delete SQL: %s\n", sql);
+
+ if (!(result = PQexec(pgsqlConn, sql))) {
+ ast_log(LOG_WARNING,
+ "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
+ ast_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "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_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "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_debug(1, "PostgreSQL RealTime: Deleted %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,
+ struct ast_flags flags, const char *suggested_incl)
+{
+ 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_debug(1, "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_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "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_debug(1, "PostgreSQL RealTime: Query: %s\n", sql);
+ ast_debug(1, "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_debug(1, "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, flags, "")) {
+ 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, "", 99999);
+ 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,
+ .store_func = store_pgsql,
+ .destroy_func = destroy_pgsql,
+ .update_func = update_pgsql
+};
+
+static int load_module(void)
+{
+ if(!parse_config(0))
+ return AST_MODULE_LOAD_DECLINE;
+
+ ast_config_engine_register(&pgsql_engine);
+ ast_verb(1, "PostgreSQL RealTime driver loaded.\n");
+ ast_cli_register_multiple(cli_realtime, sizeof(cli_realtime) / sizeof(struct ast_cli_entry));
+
+ return 0;
+}
+
+static int unload_module(void)
+{
+ /* Acquire 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);
+ ast_verb(1, "PostgreSQL RealTime unloaded.\n");
+
+ /* Unlock so something else can destroy the lock. */
+ ast_mutex_unlock(&pgsql_lock);
+
+ return 0;
+}
+
+static int reload(void)
+{
+ parse_config(1);
+
+ return 0;
+}
+
+static int parse_config(int reload)
+{
+ struct ast_config *config;
+ const char *s;
+ struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
+
+ if ((config = ast_config_load(RES_CONFIG_PGSQL_CONF, config_flags)) == CONFIG_STATUS_FILEUNCHANGED)
+ return 0;
+
+ if (!config) {
+ ast_log(LOG_WARNING, "Unable to load config %s\n", RES_CONFIG_PGSQL_CONF);
+ return 0;
+ }
+
+ ast_mutex_lock(&pgsql_lock);
+
+ if (pgsqlConn) {
+ PQfinish(pgsqlConn);
+ pgsqlConn = NULL;
+ }
+
+ 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 (option_debug) {
+ if (!ast_strlen_zero(dbhost)) {
+ ast_debug(1, "PostgreSQL RealTime Host: %s\n", dbhost);
+ ast_debug(1, "PostgreSQL RealTime Port: %i\n", dbport);
+ } else {
+ ast_debug(1, "PostgreSQL RealTime Socket: %s\n", dbsock);
+ }
+ ast_debug(1, "PostgreSQL RealTime User: %s\n", dbuser);
+ ast_debug(1, "PostgreSQL RealTime Password: %s\n", dbpass);
+ ast_debug(1, "PostgreSQL RealTime DBName: %s\n", dbname);
+ }
+
+ if (!pgsql_reconnect(NULL)) {
+ ast_log(LOG_WARNING,
+ "PostgreSQL RealTime: Couldn't establish connection. Check debug.\n");
+ ast_debug(1, "PostgreSQL RealTime: Cannot Connect: %s\n", PQerrorMessage(pgsqlConn));
+ }
+
+ ast_verb(2, "PostgreSQL RealTime reloaded.\n");
+
+ /* Done reloading. Release lock so others can now use driver. */
+ ast_mutex_unlock(&pgsql_lock);
+
+ 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_debug(1, "%u connInfo=%s\n", size, connInfo);
+ pgsqlConn = PQconnectdb(connInfo);
+ ast_debug(1, "%u connInfo=%s\n", size, connInfo);
+ ast_free(connInfo);
+ connInfo = NULL;
+ ast_debug(1, "pgsqlConn=%p\n", pgsqlConn);
+ if (pgsqlConn && PQstatus(pgsqlConn) == CONNECTION_OK) {
+ ast_debug(1, "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_debug(1, "PostgreSQL RealTime: Cannot Connect: %s\n", PQresultErrorMessage(NULL));
+ return 0;
+ }
+ } else {
+ ast_debug(1, "PostgreSQL RealTime: Everything is fine.\n");
+ return 1;
+ }
+}
+
+static char *handle_cli_realtime_pgsql_status(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
+{
+ char status[256], status2[100] = "";
+ int ctime = time(NULL) - connect_time;
+
+ switch (cmd) {
+ case CLI_INIT:
+ e->command = "realtime pgsql status";
+ e->usage =
+ "Usage: realtime pgsql status\n"
+ " Shows connection information for the PostgreSQL RealTime driver\n";
+ return NULL;
+ case CLI_GENERATE:
+ return NULL;
+ }
+
+ if (a->argc != 3)
+ return CLI_SHOWUSAGE;
+
+ 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(a->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(a->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(a->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(a->fd, "%s%s for %d minutes, %d seconds.\n", status, status2, ctime / 60,
+ ctime % 60);
+ else
+ ast_cli(a->fd, "%s%s for %d seconds.\n", status, status2, ctime);
+
+ return CLI_SUCCESS;
+ } else {
+ return CLI_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
+ );
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 07:49:39 +0000