376 lines
11 KiB
PHP
376 lines
11 KiB
PHP
<?php
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//
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// ZoneMinder web database interface file, $Date$, $Revision$
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// Copyright (C) 2001-2008 Philip Coombes
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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define('DB_LOG_OFF', 0);
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define('DB_LOG_ONLY', 1);
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define('DB_LOG_DEBUG', 2);
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$GLOBALS['dbLogLevel'] = DB_LOG_OFF;
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$GLOBALS['dbConn'] = false;
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function dbConnect() {
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global $dbConn;
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if ( strpos(ZM_DB_HOST, ':') ) {
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// Host variable may carry a port or socket.
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list($host, $portOrSocket) = explode(':', ZM_DB_HOST, 2);
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if ( ctype_digit($portOrSocket) ) {
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$socket = ':host='.$host . ';port='.$portOrSocket;
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} else {
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$socket = ':unix_socket='.$portOrSocket;
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}
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} else {
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$socket = ':host='.ZM_DB_HOST;
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}
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try {
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$dbOptions = null;
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if ( defined('ZM_DB_SSL_CA_CERT') and ZM_DB_SSL_CA_CERT ) {
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$dbOptions = array(
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PDO::MYSQL_ATTR_SSL_CA => ZM_DB_SSL_CA_CERT,
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PDO::MYSQL_ATTR_SSL_KEY => ZM_DB_SSL_CLIENT_KEY,
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PDO::MYSQL_ATTR_SSL_CERT => ZM_DB_SSL_CLIENT_CERT,
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);
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$dbConn = new PDO(ZM_DB_TYPE . $socket . ';dbname='.ZM_DB_NAME, ZM_DB_USER, ZM_DB_PASS, $dbOptions);
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} else {
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$dbConn = new PDO(ZM_DB_TYPE . $socket . ';dbname='.ZM_DB_NAME, ZM_DB_USER, ZM_DB_PASS);
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}
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$dbConn->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
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$dbConn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
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} catch(PDOException $ex ) {
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echo 'Unable to connect to ZM db.' . $ex->getMessage();
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error_log('Unable to connect to ZM DB ' . $ex->getMessage());
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$dbConn = null;
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}
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}
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dbConnect();
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function dbDisconnect() {
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global $dbConn;
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$dbConn = null;
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}
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function dbLogOff() {
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global $dbLogLevel;
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$dbLogLevel = DB_LOG_OFF;
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}
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function dbLogOn() {
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global $dbLogLevel;
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$dbLogLevel = DB_LOG_ONLY;
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}
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function dbLogDebug() {
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global $dbLogLevel;
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$dbLogLevel = DB_LOG_DEBUG;
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}
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function dbDebug() {
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dbLogDebug();
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}
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function dbLog($sql, $update=false) {
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global $dbLogLevel;
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$noExecute = $update && ($dbLogLevel >= DB_LOG_DEBUG);
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if ( $dbLogLevel > DB_LOG_OFF )
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ZM\Logger::Debug( "SQL-LOG: $sql".($noExecute?' (not executed)':'') );
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return( $noExecute );
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}
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function dbError($sql) {
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global $dbConn;
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$error = $dbConn->errorInfo();
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if ( ! $error[0] )
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return '';
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$message = "SQL-ERR '".implode("\n",$dbConn->errorInfo())."', statement was '".$sql."'";
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ZM\Error($message);
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return $message;
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}
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function dbEscape( $string ) {
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global $dbConn;
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if ( version_compare(phpversion(), '4.3.0', '<'))
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if ( get_magic_quotes_gpc() )
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return $dbConn->quote(stripslashes($string));
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else
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return $dbConn->quote($string);
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else
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if ( get_magic_quotes_gpc() )
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return $dbConn->quote(stripslashes($string));
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else
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return $dbConn->quote($string);
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}
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function dbQuery($sql, $params=NULL) {
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global $dbConn;
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if ( dbLog($sql, true) )
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return;
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$result = NULL;
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try {
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if ( isset($params) ) {
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if ( ! $result = $dbConn->prepare($sql) ) {
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ZM\Error("SQL: Error preparing $sql: " . $pdo->errorInfo);
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return NULL;
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}
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if ( ! $result->execute($params) ) {
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ZM\Error("SQL: Error executing $sql: " . implode(',', $result->errorInfo()));
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return NULL;
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}
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} else {
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if ( defined('ZM_DB_DEBUG') ) {
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ZM\Logger::Debug("SQL: $sql values:" . ($params?implode(',',$params):''));
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}
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$result = $dbConn->query($sql);
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if ( ! $result ) {
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ZM\Error("SQL: Error preparing $sql: " . $pdo->errorInfo);
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return NULL;
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}
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}
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if ( defined('ZM_DB_DEBUG') ) {
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if ( $params )
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ZM\Logger::Debug("SQL: $sql" . implode(',',$params) . ' rows: '.$result->rowCount());
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else
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ZM\Logger::Debug("SQL: $sql: rows:" . $result->rowCount());
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}
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} catch(PDOException $e) {
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ZM\Error("SQL-ERR '".$e->getMessage()."', statement was '".$sql."' params:" . ($params?implode(',',$params):''));
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return NULL;
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}
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return $result;
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}
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function dbFetchOne($sql, $col=false, $params=NULL) {
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$result = dbQuery($sql, $params);
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if ( !$result ) {
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ZM\Error("SQL-ERR dbFetchOne no result, statement was '".$sql."'".($params ? 'params: ' . join(',',$params) : ''));
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return false;
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}
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if ( !$result->rowCount() ) {
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# No rows is not an error
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return false;
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}
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if ( $result && ($dbRow = $result->fetch(PDO::FETCH_ASSOC)) ) {
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if ( $col ) {
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if ( ! array_key_exists($col, $dbRow) ) {
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ZM\Warning("$col does not exist in the returned row " . print_r($dbRow, true));
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return false;
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}
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return $dbRow[$col];
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}
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return $dbRow;
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}
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return false;
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}
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function dbFetchAll($sql, $col=false, $params=NULL) {
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$result = dbQuery($sql, $params);
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if ( ! $result ) {
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ZM\Error("SQL-ERR dbFetchAll no result, statement was '".$sql."'".($params ? 'params: '.join(',', $params) : ''));
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return false;
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}
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$dbRows = array();
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while ( $dbRow = $result->fetch(PDO::FETCH_ASSOC) )
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$dbRows[] = $col ? $dbRow[$col] : $dbRow;
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return $dbRows;
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}
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function dbFetchAssoc($sql, $indexCol, $dataCol=false) {
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$result = dbQuery($sql);
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$dbRows = array();
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while( $dbRow = $result->fetch(PDO::FETCH_ASSOC) )
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$dbRows[$dbRow[$indexCol]] = $dataCol ? $dbRow[$dataCol] : $dbRow;
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return $dbRows;
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}
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function dbFetch($sql, $col=false) {
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return dbFetchAll($sql, $col);
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}
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function dbFetchNext($result, $col=false) {
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if ( $dbRow = $result->fetch(PDO::FETCH_ASSOC) )
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return $col ? $dbRow[$col] : $dbRow;
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return false;
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}
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function dbNumRows( $sql ) {
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$result = dbQuery($sql);
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return $result->rowCount();
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}
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function dbInsertId() {
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global $dbConn;
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return $dbConn->lastInsertId();
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}
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function getEnumValues($table, $column) {
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$row = dbFetchOne("DESCRIBE `$table` `$column`");
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preg_match_all("/'([^']+)'/", $row['Type'], $matches);
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return $matches[1];
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}
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function getSetValues($table, $column) {
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return getEnumValues($table, $column);
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}
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function getUniqueValues($table, $column, $asString=1) {
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$values = array();
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$sql = "SELECT DISTINCT `$column` FROM `$table` WHERE (NOT isnull(`$column`) AND `$column` != '') ORDER BY `$column`";
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foreach ( dbFetchAll($sql) as $row ) {
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if ( $asString )
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$values[$row[$column]] = $row[$column];
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else
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$values[] = $row[$column];
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}
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return $values;
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}
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function getTableColumns( $table, $asString=1 ) {
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$columns = array();
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$sql = "DESCRIBE `$table`";
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foreach ( dbFetchAll($sql) as $row ) {
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if ( $asString )
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$columns[$row['Field']] = $row['Type'];
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else
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$columns[] = $row['Type'];
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}
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return $columns;
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}
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function getTableAutoInc( $table ) {
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$row = dbFetchOne('SHOW TABLE status WHERE Name=?', NULL, array($table));
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return $row['Auto_increment'];
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}
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function getTableDescription( $table, $asString=1 ) {
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$columns = array();
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foreach( dbFetchAll("DESCRIBE `$table`") as $row ) {
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$desc = array(
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'name' => $row['Field'],
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'required' => ($row['Null']=='NO')?true:false,
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'default' => $row['Default'],
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'db' => $row,
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);
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if ( preg_match('/^varchar\((\d+)\)$/', $row['Type'], $matches) ) {
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$desc['type'] = 'text';
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$desc['typeAttrib'] = 'varchar';
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$desc['maxLength'] = $matches[1];
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} elseif ( preg_match('/^(\w+)?text$/', $row['Type'], $matches) ) {
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$desc['type'] = 'text';
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if ( !empty($matches[1]) )
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$desc['typeAttrib'] = $matches[1];
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switch ( $matches[1] ) {
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case 'tiny' :
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$desc['maxLength'] = 255;
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break;
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case 'medium' :
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$desc['maxLength'] = 32768;
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break;
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case '' :
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case 'big' :
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//$desc['minLength'] = -128;
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break;
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default :
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ZM\Error("Unexpected text qualifier '".$matches[1]."' found for field '".$row['Field']."' in table '".$table."'");
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break;
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}
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} elseif ( preg_match('/^(enum|set)\((.*)\)$/', $row['Type'], $matches) ) {
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$desc['type'] = 'text';
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$desc['typeAttrib'] = $matches[1];
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preg_match_all("/'([^']+)'/", $matches[2], $matches);
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$desc['values'] = $matches[1];
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} elseif ( preg_match('/^(\w+)?int\(\d+\)(?:\s+(unsigned))?$/', $row['Type'], $matches) ) {
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$desc['type'] = 'integer';
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switch ( $matches[1] ) {
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case 'tiny' :
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$desc['minValue'] = -128;
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$desc['maxValue'] = 127;
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break;
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case 'small' :
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$desc['minValue'] = -32768;
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$desc['maxValue'] = 32767;
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break;
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case 'medium' :
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$desc['minValue'] = -8388608;
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$desc['maxValue'] = 8388607;
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break;
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case '' :
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$desc['minValue'] = -2147483648;
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$desc['maxValue'] = 2147483647;
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break;
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case 'big' :
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//$desc['minValue'] = -128;
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//$desc['maxValue'] = 127;
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break;
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default :
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ZM\Error("Unexpected integer qualifier '".$matches[1]."' found for field '".$row['Field']."' in table '".$table."'");
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break;
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}
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if ( !empty($matches[1]) )
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$desc['typeAttrib'] = $matches[1];
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if ( $desc['unsigned'] = ( isset($matches[2]) && $matches[2] == 'unsigned' ) ) {
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$desc['maxValue'] += (-$desc['minValue']);
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$desc['minValue'] = 0;
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}
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} elseif ( preg_match('/^(?:decimal|numeric)\((\d+)(?:,(\d+))?\)(?:\s+(unsigned))?$/', $row['Type'], $matches) ) {
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$desc['type'] = 'fixed';
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$desc['range'] = $matches[1];
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if ( isset($matches[2]) )
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$desc['precision'] = $matches[2];
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else
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$desc['precision'] = 0;
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$desc['unsigned'] = ( isset($matches[3]) && $matches[3] == 'unsigned' );
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} elseif ( preg_match('/^(datetime|timestamp|date|time)$/', $row['Type'], $matches) ) {
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$desc['type'] = 'datetime';
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switch ( $desc['typeAttrib'] = $matches[1] ) {
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case 'datetime' :
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case 'timestamp' :
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$desc['hasDate'] = true;
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$desc['hasTime'] = true;
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break;
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case 'date' :
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$desc['hasDate'] = true;
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$desc['hasTime'] = false;
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break;
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case 'time' :
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$desc['hasDate'] = false;
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$desc['hasTime'] = true;
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break;
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}
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} else {
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ZM\Error("Can't parse database type '".$row['Type']."' found for field '".$row['Field']."' in table '".$table."'");
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}
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if ( $asString )
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$columns[$row['Field']] = $desc;
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else
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$columns[] = $desc;
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}
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return $columns;
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}
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?>
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