<?php
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/*
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Copyright (c) 2007, Till Brehm, projektfarm Gmbh
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of ISPConfig nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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class db {
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private $dbHost = ''; // hostname of the MySQL server
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private $dbName = ''; // logical database name on that server
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private $dbUser = ''; // database authorized user
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private $dbPass = ''; // user's password
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private $dbCharset = ""; // what charset comes and goes to mysql: utf8 / latin1
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private $linkId = 0; // last result of mysql_connect()
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private $queryId = 0; // last result of mysql_query()
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private $record = array(); // last record fetched
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private $autoCommit = 1; // Autocommit Transactions
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private $currentRow; // current row number
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private $errorNumber = 0; // last error number
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public $errorMessage = ''; // last error message
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private $errorLocation = ''; // last error location
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public $show_error_messages = false;
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public function __construct()
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{
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global $conf;
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$this->dbHost = $conf['db_host'];
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$this->dbName = $conf['db_database'];
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$this->dbUser = $conf['db_user'];
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$this->dbPass = $conf['db_password'];
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$this->dbCharset = $conf['db_charset'];
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//$this->connect();
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}
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/** Error handler */
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public function updateError($location)
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{
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$this->errorNumber = mysql_errno();
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$this->errorMessage = mysql_error();
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$this->errorLocation = $location;
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if($this->errorNumber && $this->show_error_messages){
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echo('<br /><b>'.$this->errorLocation.'</b><br />'.$this->errorMessage);
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flush();
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}
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}
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public function connect()
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{
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if($this->linkId == 0){
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$this->linkId = mysql_connect($this->dbHost, $this->dbUser, $this->dbPass);
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if(!$this->linkId){
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$this->updateError('DB::connect()<br />mysql_connect');
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return false;
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}
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$this->queryId = @mysql_query('SET NAMES '.$this->dbCharset, $this->linkId);
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}
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return true;
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}
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public function query($queryString)
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{
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if(!$this->connect()){
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return false;
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}
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if(!mysql_select_db($this->dbName, $this->linkId)){
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$this->updateError('DB::connect()<br />mysql_select_db');
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return false;
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}
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$this->queryId = @mysql_query($queryString, $this->linkId);
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$this->updateError('DB::query('.$queryString.')<br />mysql_query');
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if(!$this->queryId){
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return false;
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}
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$this->currentRow = 0;
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return $this->queryId;
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}
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/** Returns all records as an array */
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public function queryAllRecords($queryString)
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{
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if(!$this->query($queryString)){
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return false;
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}
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$ret = array();
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while($line = $this->nextRecord()){
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$ret[] = $line;
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}
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return $ret;
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}
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/** Returns one row as an array */
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public function queryOneRecord($queryString)
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{
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if(!$this->query($queryString) || $this->numRows() == 0){
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return false;
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}
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return $this->nextRecord();
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}
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/** Returns the next record as an array */
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public function nextRecord()
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{
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$this->record = mysql_fetch_assoc($this->queryId);
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$this->updateError('DB::nextRecord()<br />mysql_fetch_array');
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if(!$this->record || !is_array($this->record)){
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return false;
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}
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$this->currentRow++;
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return $this->record;
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}
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/** Returns the number of rows returned by the last select query */
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public function numRows()
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{
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return mysql_num_rows($this->queryId);
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}
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public function affectedRows()
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{
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return mysql_affected_rows($this->linkId);
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}
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/** Returns the last mySQL insert_id() */
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public function insertID()
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{
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return mysql_insert_id($this->linkId);
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}
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/** Checks a variable - Depreciated, use quote() */
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public function check($formfield)
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{
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return $this->quote($formfield);
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}
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/** Escapes quotes in variable. mysql_real_escape_string() */
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public function quote($formfield)
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{
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if(!$this->connect()){
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$this->updateError('WARNING: mysql_connect: Used addslashes instead of mysql_real_escape_string');
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return addslashes($formfield);
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}
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return mysql_real_escape_string($formfield, $this->linkId);
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}
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/** Unquotes a variable, strip_slashes() */
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public function unquote($formfield)
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{
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return stripslashes($formfield);
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}
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public function toLower($record)
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{
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if(is_array($record)){
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foreach($record as $key => $val) {
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$key = strtolower($key);
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$out[$key] = $val;
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}
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}
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return $out;
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}
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// deprecated
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/*
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public function insert($tablename, $form, $debug = 0)
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{
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if(is_array($form)){
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foreach($form as $key => $value){
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$sql_key .= "$key, ";
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$sql_value .= "'".$this->check($value)."', ";
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}
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$sql_key = substr($sql_key,0,strlen($sql_key) - 2);
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$sql_value = substr($sql_value,0,strlen($sql_value) - 2);
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$sql = "INSERT INTO $tablename (".$sql_key.') VALUES ('.$sql_value.')';
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//TODO: where has $debug come from !???
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if($debug == 1){ echo "SQL-Statement: $sql<br><br>"; }
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$this->query($sql);
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if($debug == 1){ echo 'mySQL Error Message: '.$this->errorMessage; }
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}
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}
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// Deprecated
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public function update($tablename, $form, $bedingung, $debug = 0)
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{
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if(is_array($form)){
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foreach($form as $key => $value){
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$insql .= "$key = '".$this->check($value)."', ";
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}
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$insql = substr($insql, 0, strlen($insql) - 2);
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$sql = "UPDATE $tablename SET " . $insql . " WHERE $bedingung";
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if($debug == 1){ echo "SQL-Statement: $sql<br><br>"; }
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$this->query($sql);
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if($debug == 1){ echo 'mySQL Error Message: '.$this->errorMessage; }
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}
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}
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*/
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public function diffrec($record_old, $record_new) {
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$diffrec_full = array();
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$diff_num = 0;
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if(is_array($record_old) && count($record_old) > 0) {
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foreach($record_old as $key => $val) {
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// if(!isset($record_new[$key]) || $record_new[$key] != $val) {
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if($record_new[$key] != $val) {
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// Record has changed
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$diffrec_full['old'][$key] = $val;
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$diffrec_full['new'][$key] = $record_new[$key];
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$diff_num++;
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} else {
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$diffrec_full['old'][$key] = $val;
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$diffrec_full['new'][$key] = $val;
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}
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}
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} elseif(is_array($record_new)) {
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foreach($record_new as $key => $val) {
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if(isset($record_new[$key]) && @$record_old[$key] != $val) {
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// Record has changed
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$diffrec_full['new'][$key] = $val;
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$diffrec_full['old'][$key] = @$record_old[$key];
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$diff_num++;
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} else {
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$diffrec_full['new'][$key] = $val;
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$diffrec_full['old'][$key] = $val;
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}
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}
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}
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return array('diff_num' => $diff_num, 'diff_rec' => $diffrec_full);
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}
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//** Function to fill the datalog with a full differential record.
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public function datalogSave($db_table, $action, $primary_field, $primary_id, $record_old, $record_new) {
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global $app,$conf;
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// Insert backticks only for incomplete table names.
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if(stristr($db_table,'.')) {
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$escape = '';
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} else {
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$escape = '`';
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}
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$tmp = $this->diffrec($record_old, $record_new);
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$diffrec_full = $tmp['diff_rec'];
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$diff_num = $tmp['diff_num'];
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unset($tmp);
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// Insert the server_id, if the record has a server_id
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$server_id = (isset($record_old["server_id"]) && $record_old["server_id"] > 0)?$record_old["server_id"]:0;
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if(isset($record_new["server_id"])) $server_id = $record_new["server_id"];
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if($diff_num > 0) {
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//print_r($diff_num);
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//print_r($diffrec_full);
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$diffstr = $app->db->quote(serialize($diffrec_full));
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$username = $app->db->quote($_SESSION["s"]["user"]["username"]);
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$dbidx = $primary_field.":".$primary_id;
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if($action == 'INSERT') $action = 'i';
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if($action == 'UPDATE') $action = 'u';
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if($action == 'DELETE') $action = 'd';
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$sql = "INSERT INTO sys_datalog (dbtable,dbidx,server_id,action,tstamp,user,data) VALUES ('".$db_table."','$dbidx','$server_id','$action','".time()."','$username','$diffstr')";
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$app->db->query($sql);
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}
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return true;
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}
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//** Inserts a record and saves the changes into the datalog
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public function datalogInsert($tablename, $insert_data, $index_field) {
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global $app;
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$old_rec = array();
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$this->query("INSERT INTO $tablename $insert_data");
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$index_value = $this->insertID();
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$new_rec = $this->queryOneRecord("SELECT * FROM $tablename WHERE $index_field = '$index_value'");
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$this->datalogSave($tablename, 'INSERT', $index_field, $index_value, $old_rec, $new_rec);
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return $index_value;
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}
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//** Updates a record and saves the changes into the datalog
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public function datalogUpdate($tablename, $update_data, $index_field, $index_value) {
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global $app;
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$old_rec = $this->queryOneRecord("SELECT * FROM $tablename WHERE $index_field = '$index_value'");
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$this->query("UPDATE $tablename SET $update_data WHERE $index_field = '$index_value'");
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$new_rec = $this->queryOneRecord("SELECT * FROM $tablename WHERE $index_field = '$index_value'");
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$this->datalogSave($tablename, 'UPDATE', $index_field, $index_value, $old_rec, $new_rec);
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return true;
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}
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//** Deletes a record and saves the changes into the datalog
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public function datalogDelete($tablename, $index_field, $index_value) {
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global $app;
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$old_rec = $this->queryOneRecord("SELECT * FROM $tablename WHERE $index_field = '$index_value'");
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$this->query("DELETE FROM $tablename WHERE $index_field = '$index_value'");
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$new_rec = array();
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$this->datalogSave($tablename, 'DELETE', $index_field, $index_value, $old_rec, $new_rec);
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return true;
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}
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public function closeConn()
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{
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if($this->linkId)
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{
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mysql_close($this->linkId);
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return true;
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} else { return false; }
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}
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public function freeResult($query)
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{
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if(mysql_free_result($query))
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{
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return true;
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} else {
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return false;
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}
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}
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/*
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public function delete()
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{
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}
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*/
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/*
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public function Transaction($action)
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{
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//action = begin, commit oder rollback
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}
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*/
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/** Creates a database table with the following format for the $columns array
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* <code>
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* $columns = array(action => add | alter | drop
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* name => Spaltenname
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* name_new => neuer Spaltenname, nur bei 'alter' belegt
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* type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob
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* typeValue => Wert z.B. bei Varchar
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* defaultValue => Default Wert
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* notNull => true | false
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* autoInc => true | false
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* option => unique | primary | index)
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* </code>
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*/
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public function createTable($table_name, $columns)
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{
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$index = '';
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$sql = "CREATE TABLE $table_name (";
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foreach($columns as $col){
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$sql .= $col['name'].' '.$this->mapType($col['type'], $col['typeValue']).' ';
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//* Set default value
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if(isset($col['defaultValue']) && $col['defaultValue'] != '') {
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if($col['defaultValue'] == 'NULL' or $col['defaultValue'] == 'NOT NULL') {
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$sql .= 'DEFAULT '.$col['defaultValue'].' ';
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} else {
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$sql .= "DEFAULT '".$col['defaultValue']."' ";
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}
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} elseif($col['defaultValue'] != false) {
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$sql .= "DEFAULT '' ";
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}
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if(isset($col['defaultValue']) && $col['defaultValue'] != 'NULL' && $col['defaultValue'] != 'NOT NULL') {
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if($col['notNull'] == true) {
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$sql .= 'NOT NULL ';
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} else {
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$sql .= 'NULL ';
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}
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}
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if(isset($col['autoInc']) && $col['autoInc'] == true){ $sql .= 'auto_increment '; }
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$sql.= ',';
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//* Index Definitions
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if(isset($col['option']) && $col['option'] == 'primary'){ $index .= 'PRIMARY KEY ('.$col['name'].'),'; }
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if(isset($col['option']) && $col['option'] == 'index'){ $index .= 'INDEX ('.$col['name'].'),'; }
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if(isset($col['option']) && $col['option'] == 'unique'){ $index .= 'UNIQUE ('.$col['name'].'),'; }
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}
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$sql .= $index;
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$sql = substr($sql,0,-1);
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$sql .= ')';
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$this->query($sql);
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return true;
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}
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/** Changes a table definition. The format for the $columns array is
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* <code>
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* $columns = array(action => add | alter | drop
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* name => Spaltenname
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* name_new => neuer Spaltenname, nur bei 'alter' belegt
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* type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob
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* typeValue => Wert z.B. bei Varchar
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* defaultValue => Default Wert
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* notNull => true | false
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* autoInc => true | false
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* option => unique | primary | index)
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*/
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public function alterTable($table_name,$columns)
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{
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$index = '';
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$sql = "ALTER TABLE $table_name ";
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foreach($columns as $col){
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if($col['action'] == 'add'){
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$sql .= 'ADD '.$col['name'].' '.$this->mapType($col['type'], $col['typeValue']).' ';
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}elseif($col['action'] == 'alter') {
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$sql .= 'CHANGE '.$col['name'].' '.$col['name_new'].' '.$this->mapType($col['type'],$col['typeValue']).' ';
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}elseif($col['action'] == 'drop') {
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$sql .= 'DROP '.$col['name'].' ';
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}
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if($col["action"] != 'drop') {
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if($col["defaultValue"] != "") $sql .= "DEFAULT '".$col["defaultValue"]."' ";
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if($col["notNull"] == true) {
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$sql .= "NOT NULL ";
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} else {
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$sql .= "NULL ";
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}
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if($col["autoInc"] == true) $sql .= "auto_increment ";
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$sql.= ",";
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//* Index definitions
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if($col['option'] == 'primary') $index .= 'PRIMARY KEY ('.$col['name'].'),';
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if($col['option'] == 'index') $index .= 'INDEX ('.$col['name'].'),';
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if($col['option'] == 'unique') $index .= 'UNIQUE ('.$col['name'].'),';
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}
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}
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$sql .= $index;
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$sql = substr($sql,0,-1);
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//die($sql);
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$this->query($sql);
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return true;
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}
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public function dropTable($table_name)
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{
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$this->check($table_name);
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$sql = "DROP TABLE '". $table_name."'";
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return $this->query($sql);
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}
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/** Return an array of table names */
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public function getTables($database_name = '')
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{
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if($database_name == ''){
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$database_name = $this->dbName;
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}
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$result = @mysql_list_tables($database_name);
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$tb_names = array();
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for ($i = 0; $i < @mysql_num_rows($result); $i++) {
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$tb_names[$i] = @mysql_tablename($result, $i);
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}
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return $tb_names;
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}
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public function tableInfo($table_name) {
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//* Tabellenfelder einlesen ?
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if($rows = $this->queryAllRecords("SHOW FIELDS FROM $table_name")){
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foreach($rows as $row) {
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$name = $row['Field'];
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$default = $row['Default'];
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$key = $row['Key'];
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$extra = $row['Extra'];
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$isnull = $row['Null'];
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$type = $row['Type'];
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$column = array('name' => $name, 'defaultValue' => $default);
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//$column["type"] = $type;
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if(stristr($key, 'PRI')){ $column['option'] = 'primary'; }
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$column['notNull'] = stristr($isnull,'YES') ? false : true;
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if($extra == 'auto_increment'){ $column['autoInc'] = true; }
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//* Get the Data and Metatype
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if( stristr($type, 'int(') ){ $metaType = 'int32'; }
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if( stristr($type, 'bigint') ){ $metaType = 'int64'; }
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if( stristr($type, 'char') ) {
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$metaType = 'char';
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$tmp_typeValue = explode('(',$type);
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$column['typeValue'] = substr($tmp_typeValue[1], 0, -1);
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}
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if( stristr($type, 'varchar') ){
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$metaType = 'varchar';
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$tmp_typeValue = explode('(',$type);
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$column['typeValue'] = substr($tmp_typeValue[1], 0, -1);
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}
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if(stristr($type, 'text')) $metaType = 'text';
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if(stristr($type, 'double')) $metaType = 'double';
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if(stristr($type, 'blob')) $metaType = 'blob';
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$column['type'] = $metaType;
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$columns[] = $column;
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}
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return $columns;
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} else {
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return false;
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}
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}
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public function mapType($metaType, $typeValue) {
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//TODO: ? this is not required ?? global $go_api;
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$metaType = strtolower($metaType);
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switch ($metaType) {
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case 'int16':
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return 'smallint';
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case 'int32':
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return 'int';
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case 'int64':
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return 'bigint';
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case 'double':
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return 'double';
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case 'char':
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return 'char';
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case 'varchar':
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if($typeValue < 1) die('Datenbank Fehler: F�r diesen Datentyp ist eine L�ngenangabe notwendig.');
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return 'varchar('.$typeValue.')';
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case 'text':
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return 'text';
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case 'blob':
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return 'blob';
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}
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}
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}
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?>
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