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Copyright (c) 2005, Till Brehm, projektfarm Gmbh
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of ISPConfig nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
class db extends mysqli
{
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private $dbHost = ''; // hostname of the MySQL server
private $dbName = ''; // logical database name on that server
private $dbUser = ''; // database authorized user
private $dbPass = ''; // user's password
private $dbCharset = 'utf8';// Database charset
private $dbNewLink = false; // Return a new linkID when connect is called again
private $dbClientFlags = 0; // MySQL Client falgs
private $linkId = 0; // last result of mysqli_connect()
private $queryId = 0; // last result of mysqli_query()
private $record = array(); // last record fetched
private $autoCommit = 1; // Autocommit Transactions
private $currentRow; // current row number
private $errorNumber = 0; // last error number
public $errorMessage = ''; // last error message
private $errorLocation = '';// last error location
public $show_error_messages = false; // false in server, true in interface
private $isConnected = false; // needed to know if we have a valid mysqli object from the constructor
// constructor
public function __construct($prefix = '') {
global $conf;
if($prefix != '') $prefix .= '_';
$this->dbHost = $conf[$prefix.'db_host'];
$this->dbName = $conf[$prefix.'db_database'];
$this->dbUser = $conf[$prefix.'db_user'];
$this->dbPass = $conf[$prefix.'db_password'];
$this->dbCharset = $conf[$prefix.'db_charset'];
$this->dbNewLink = $conf[$prefix.'db_new_link'];
$this->dbClientFlags = $conf[$prefix.'db_client_flags'];
parent::__construct($conf[$prefix.'db_host'], $conf[$prefix.'db_user'], $conf[$prefix.'db_password'], $conf[$prefix.'db_database']);
$try = 0;
//while(!is_null($this->connect_error) && $try < 5) {
while(mysqli_connect_error() && $try < 5) {
if($try > 0) sleep(1);
$try++;
$this->updateError('DB::__construct');
parent::__construct($conf[$prefix.'db_host'], $conf[$prefix.'db_user'], $conf[$prefix.'db_password'], $conf[$prefix.'db_database']);
}
//if(is_null($this->connect_error)) $this->isConnected = true;
//else return false;
if(!mysqli_connect_error()) $this->isConnected = true;
else return false;
$this->setCharacterEncoding();
}
public function __destruct() {
$this->close(); // helps avoid memory leaks, and persitent connections that don't go away.
}
// error handler
public function updateError($location) {
global $app, $conf;
/*
if(!is_null($this->connect_error)) {
$this->errorNumber = $this->connect_errno;
$this->errorMessage = $this->connect_error;
} else {
$this->errorNumber = $this->errno;
$this->errorMessage = $this->error;
}
if(mysqli_connect_error()) {
$this->errorNumber = mysqli_connect_errno();
$this->errorMessage = mysqli_connect_error();
} else {
$this->errorNumber = mysqli_errno($this);
$this->errorMessage = mysqli_error($this);
}
$this->errorLocation = $location;
if($this->errorNumber) {
$error_msg = $this->errorLocation .' '. $this->errorMessage;
// This right here will allow us to use the same file for server & interface
if($this->show_error_messages && $conf['demo_mode'] === false) {
echo $error_msg;
} else if(is_object($app) && method_exists($app, 'log')) {
$app->log($error_msg, LOGLEVEL_WARN);
}
}
}
private function setCharacterEncoding() {
if($this->isConnected == false) return false;
parent::query( 'SET NAMES '.$this->dbCharset);
parent::query( "SET character_set_results = '".$this->dbCharset."', character_set_client = '".$this->dbCharset."', character_set_connection = '".$this->dbCharset."', character_set_database = '".$this->dbCharset."', character_set_server = '".$this->dbCharset."'");
tbrehm
committed
}
private function securityScan($string) {
global $app, $conf;
// get security config
if(isset($app)) {
$app->uses('getconf');
$ids_config = $app->getconf->get_security_config('ids');
if($ids_config['sql_scan_enabled'] == 'yes') {
$string_orig = $string;
//echo $string;
$chars = array(';', '#', '/*', '*/', '--', '\\\'', '\\"');
$string = str_replace('\\\\', '', $string);
$string = preg_replace('/(^|[^\\\])([\'"])\\2/is', '$1', $string);
$string = preg_replace('/(^|[^\\\])([\'"])(.*?[^\\\])\\2/is', '$1', $string);
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$ok = true;
if(substr_count($string, "`") % 2 != 0 || substr_count($string, "'") % 2 != 0 || substr_count($string, '"') % 2 != 0) {
$app->log("SQL injection warning (" . $string_orig . ")",2);
$ok = false;
} else {
foreach($chars as $char) {
if(strpos($string, $char) !== false) {
$ok = false;
$app->log("SQL injection warning (" . $string_orig . ")",2);
break;
}
}
}
if($ok == true) {
return true;
} else {
if($ids_config['sql_scan_action'] == 'warn') {
// we return false in warning level.
return false;
} else {
// if sql action = 'block' or anything else then stop here.
$app->error('Possible SQL injection. All actions have been logged.');
}
}
}
}
}
public function query($queryString) {
global $conf;
if($this->isConnected == false) return false;
$try = 0;
do {
$try++;
$ok = $this->ping();
if(!$ok) {
if(!$this->real_connect($this->dbHost, $this->dbUser, $this->dbPass, $this->dbName)) {
if($try > 4) {
$this->updateError('DB::query -> reconnect');
return false;
} else {
sleep(1);
}
} else {
$this->setCharacterEncoding();
$ok = true;
}
}
} while($ok == false);
$this->securityScan($queryString);
$this->queryId = parent::query($queryString);
$this->updateError('DB::query('.$queryString.') -> mysqli_query');
if($this->errorNumber && $conf['demo_mode'] === false) debug_print_backtrace();
if(!$this->queryId) {
return false;
}
$this->currentRow = 0;
return $this->queryId;
}
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// returns all records in an array
public function queryAllRecords($queryString) {
if(!$this->query($queryString))
{
return false;
}
$ret = array();
while($line = $this->nextRecord())
{
$ret[] = $line;
}
return $ret;
}
// returns one record in an array
public function queryOneRecord($queryString) {
if(!$this->query($queryString) || $this->numRows() == 0)
{
return false;
}
return $this->nextRecord();
}
// returns the next record in an array
public function nextRecord() {
$this->record = $this->queryId->fetch_assoc();
$this->updateError('DB::nextRecord()-> mysql_fetch_array');
if(!$this->record || !is_array($this->record))
{
return false;
}
$this->currentRow++;
return $this->record;
}
// returns number of rows returned by the last select query
public function numRows() {
return intval($this->queryId->num_rows);
}
public function affectedRows() {
return intval($this->queryId->affected_rows);
}
// returns mySQL insert id
public function insertID() {
return $this->insert_id;
}
//* Function to quote strings
public function quote($formfield) {
return $this->escape_string($formfield);
}
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//* Function to unquotae strings
public function unquote($formfield) {
return stripslashes($formfield);
}
public function toLower($record) {
if(is_array($record)) {
foreach($record as $key => $val) {
$key = strtolower($key);
$out[$key] = $val;
}
}
return $out;
}
public function diffrec($record_old, $record_new) {
$diffrec_full = array();
$diff_num = 0;
if(is_array($record_old) && count($record_old) > 0) {
foreach($record_old as $key => $val) {
// if(!isset($record_new[$key]) || $record_new[$key] != $val) {
if(@$record_new[$key] != $val) {
// Record has changed
$diffrec_full['old'][$key] = $val;
$diffrec_full['new'][$key] = @$record_new[$key];
$diff_num++;
} else {
$diffrec_full['old'][$key] = $val;
$diffrec_full['new'][$key] = $val;
}
}
} elseif(is_array($record_new)) {
foreach($record_new as $key => $val) {
if(isset($record_new[$key]) && @$record_old[$key] != $val) {
// Record has changed
$diffrec_full['new'][$key] = $val;
$diffrec_full['old'][$key] = @$record_old[$key];
$diff_num++;
} else {
$diffrec_full['new'][$key] = $val;
$diffrec_full['old'][$key] = $val;
}
}
}
return array('diff_num' => $diff_num, 'diff_rec' => $diffrec_full);
}
//** Function to fill the datalog with a full differential record.
public function datalogSave($db_table, $action, $primary_field, $primary_id, $record_old, $record_new, $force_update = false) {
global $app, $conf;
if(!preg_match('/^[a-zA-Z0-9\-\_\.]{1,64}$/',$db_table)) $app->error('Invalid table name '.$db_table);
if(!preg_match('/^[a-zA-Z0-9\-\_]{1,64}$/',$primary_field)) $app->error('Invalid primary field '.$primary_field.' in table '.$db_table);
$primary_field = $this->quote($primary_field);
$primary_id = intval($primary_id);
if($force_update == true) {
//* We force a update even if no record has changed
$diffrec_full = array('new' => $record_new, 'old' => $record_old);
$diff_num = count($record_new);
} else {
//* get the difference record between old and new record
$tmp = $this->diffrec($record_old, $record_new);
$diffrec_full = $tmp['diff_rec'];
$diff_num = $tmp['diff_num'];
unset($tmp);
}
// Insert the server_id, if the record has a server_id
$server_id = (isset($record_old['server_id']) && $record_old['server_id'] > 0)?$record_old['server_id']:0;
if(isset($record_new['server_id'])) $server_id = $record_new['server_id'];
if($diff_num > 0) {
//print_r($diff_num);
//print_r($diffrec_full);
$diffstr = $app->db->quote(serialize($diffrec_full));
$username = $app->db->quote($_SESSION['s']['user']['username']);
$dbidx = $primary_field.':'.$primary_id;
if($action == 'INSERT') $action = 'i';
if($action == 'UPDATE') $action = 'u';
if($action == 'DELETE') $action = 'd';
$sql = "INSERT INTO sys_datalog (dbtable,dbidx,server_id,action,tstamp,user,data) VALUES ('".$db_table."','$dbidx','$server_id','$action','".time()."','$username','$diffstr')";
$app->db->query($sql);
}
//** Inserts a record and saves the changes into the datalog
public function datalogInsert($tablename, $insert_data, $index_field) {
global $app;
if(!preg_match('/^[a-zA-Z0-9\-\_\.]{1,64}$/',$tablename)) $app->error('Invalid table name '.$tablename);
if(!preg_match('/^[a-zA-Z0-9\-\_]{1,64}$/',$index_field)) $app->error('Invalid index field '.$index_field.' in table '.$tablename);
if(strpos($tablename, '.') !== false) {
$tablename_escaped = preg_replace('/^(.+)\.(.+)$/', '`$1`.`$2`', $tablename);
$index_field = $this->quote($index_field);
if(is_array($insert_data)) {
$key_str = '';
$val_str = '';
foreach($insert_data as $key => $val) {
$key_str .= "`".$key ."`,";
$val_str .= "'".$this->quote($val)."',";
}
$key_str = substr($key_str, 0, -1);
$val_str = substr($val_str, 0, -1);
$insert_data_str = '('.$key_str.') VALUES ('.$val_str.')';
} else {
$insert_data_str = $insert_data;
}
$this->query("INSERT INTO $tablename_escaped $insert_data_str");
$index_value = $this->insertID();
$new_rec = $this->queryOneRecord("SELECT * FROM $tablename_escaped WHERE $index_field = '$index_value'");
$this->datalogSave($tablename, 'INSERT', $index_field, $index_value, $old_rec, $new_rec);
//** Updates a record and saves the changes into the datalog
public function datalogUpdate($tablename, $update_data, $index_field, $index_value, $force_update = false) {
global $app;
if(!preg_match('/^[a-zA-Z0-9\-\_\.]{1,64}$/',$tablename)) $app->error('Invalid table name '.$tablename);
if(!preg_match('/^[a-zA-Z0-9\-\_]{1,64}$/',$index_field)) $app->error('Invalid index field '.$index_field.' in table '.$tablename);
if(strpos($tablename, '.') !== false) {
$tablename_escaped = preg_replace('/^(.+)\.(.+)$/', '`$1`.`$2`', $tablename);
$index_field = $this->quote($index_field);
$index_value = $this->quote($index_value);
$old_rec = $this->queryOneRecord("SELECT * FROM $tablename_escaped WHERE $index_field = '$index_value'");
if(is_array($update_data)) {
$update_data_str = '';
foreach($update_data as $key => $val) {
$update_data_str .= "`".$key ."` = '".$this->quote($val)."',";
}
$update_data_str = substr($update_data_str, 0, -1);
} else {
$update_data_str = $update_data;
}
$this->query("UPDATE $tablename_escaped SET $update_data_str WHERE $index_field = '$index_value'");
$new_rec = $this->queryOneRecord("SELECT * FROM $tablename_escaped WHERE $index_field = '$index_value'");
$this->datalogSave($tablename, 'UPDATE', $index_field, $index_value, $old_rec, $new_rec, $force_update);
//** Deletes a record and saves the changes into the datalog
public function datalogDelete($tablename, $index_field, $index_value) {
global $app;
if(!preg_match('/^[a-zA-Z0-9\-\_\.]{1,64}$/',$tablename)) $app->error('Invalid table name '.$tablename);
if(!preg_match('/^[a-zA-Z0-9\-\_]{1,64}$/',$index_field)) $app->error('Invalid index field '.$index_field.' in table '.$tablename);
if(strpos($tablename, '.') !== false) {
$tablename_escaped = preg_replace('/^(.+)\.(.+)$/', '`$1`.`$2`', $tablename);
$index_field = $this->quote($index_field);
$index_value = $this->quote($index_value);
$old_rec = $this->queryOneRecord("SELECT * FROM $tablename_escaped WHERE $index_field = '$index_value'");
$this->query("DELETE FROM $tablename_escaped WHERE $index_field = '$index_value'");
$new_rec = array();
$this->datalogSave($tablename, 'DELETE', $index_field, $index_value, $old_rec, $new_rec);
//* get the current datalog status for the specified login (or currently logged in user)
public function datalogStatus($login = '') {
global $app;
$return = array('count' => 0, 'entries' => array());
if($_SESSION['s']['user']['typ'] == 'admin') return $return; // these information should not be displayed to admin users
if($login == '' && isset($_SESSION['s']['user'])) {
$login = $_SESSION['s']['user']['username'];
}
$result = $this->queryAllRecords("SELECT COUNT( * ) AS cnt, sys_datalog.action, sys_datalog.dbtable FROM sys_datalog, server WHERE server.server_id = sys_datalog.server_id AND sys_datalog.user = '" . $this->quote($login) . "' AND sys_datalog.datalog_id > server.updated GROUP BY sys_datalog.dbtable, sys_datalog.action");
foreach($result as $row) {
if(!$row['dbtable'] || in_array($row['dbtable'], array('aps_instances', 'aps_instances_settings', 'mail_access', 'mail_content_filter'))) continue; // ignore some entries, maybe more to come
$return['entries'][] = array('table' => $row['dbtable'], 'action' => $row['action'], 'count' => $row['cnt'], 'text' => $app->lng('datalog_status_' . $row['action'] . '_' . $row['dbtable']));
$return['count'] += $row['cnt'];
}
unset($result);
return $return;
}
public function freeResult($query)
{
if(is_object($query) && (get_class($query) == "mysqli_result")) {
$query->free();
return true;
} else {
return false;
}
}
/* TODO: Does anything use this? */
public function delete() {
}
/* TODO: Does anything use this? */
public function Transaction($action) {
//action = begin, commit oder rollback
}
/*
$columns = array(action => add | alter | drop
name => Spaltenname
name_new => neuer Spaltenname, nur bei 'alter' belegt
type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob
typeValue => Wert z.B. bei Varchar
defaultValue => Default Wert
notNull => true | false
autoInc => true | false
option => unique | primary | index)
*/
public function createTable($table_name, $columns) {
$index = '';
$sql = "CREATE TABLE $table_name (";
foreach($columns as $col){
$sql .= $col['name'].' '.$this->mapType($col['type'], $col['typeValue']).' ';
if($col['defaultValue'] != '') $sql .= "DEFAULT '".$col['defaultValue']."' ";
if($col['notNull'] == true) {
$sql .= 'NOT NULL ';
} else {
$sql .= 'NULL ';
}
if($col['autoInc'] == true) $sql .= 'auto_increment ';
$sql.= ',';
// key Definitionen
if($col['option'] == 'primary') $index .= 'PRIMARY KEY ('.$col['name'].'),';
if($col['option'] == 'index') $index .= 'INDEX ('.$col['name'].'),';
if($col['option'] == 'unique') $index .= 'UNIQUE ('.$col['name'].'),';
}
$sql .= $index;
$sql = substr($sql, 0, -1);
$sql .= ')';
$this->query($sql);
return true;
$columns = array(action => add | alter | drop
name => Spaltenname
name_new => neuer Spaltenname, nur bei 'alter' belegt
type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob
typeValue => Wert z.B. bei Varchar
defaultValue => Default Wert
notNull => true | false
autoInc => true | false
option => unique | primary | index)
*/
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public function alterTable($table_name, $columns) {
$index = '';
$sql = "ALTER TABLE $table_name ";
foreach($columns as $col){
if($col['action'] == 'add') {
$sql .= 'ADD '.$col['name'].' '.$this->mapType($col['type'], $col['typeValue']).' ';
} elseif ($col['action'] == 'alter') {
$sql .= 'CHANGE '.$col['name'].' '.$col['name_new'].' '.$this->mapType($col['type'], $col['typeValue']).' ';
} elseif ($col['action'] == 'drop') {
$sql .= 'DROP '.$col['name'].' ';
}
if($col['action'] != 'drop') {
if($col['defaultValue'] != '') $sql .= "DEFAULT '".$col['defaultValue']."' ";
if($col['notNull'] == true) {
$sql .= 'NOT NULL ';
} else {
$sql .= 'NULL ';
}
if($col['autoInc'] == true) $sql .= 'auto_increment ';
$sql.= ',';
// Index definitions
if($col['option'] == 'primary') $index .= 'PRIMARY KEY ('.$col['name'].'),';
if($col['option'] == 'index') $index .= 'INDEX ('.$col['name'].'),';
if($col['option'] == 'unique') $index .= 'UNIQUE ('.$col['name'].'),';
}
}
$sql .= $index;
$sql = substr($sql, 0, -1);
//die($sql);
$this->query($sql);
return true;
}
public function dropTable($table_name) {
$this->check($table_name);
$sql = "DROP TABLE '". $table_name."'";
return $this->query($sql);
}
// gibt Array mit Tabellennamen zur�ck
public function getTables($database_name = '') {
if($this->isConnected == false) return false;
if($database_name == '') $database_name = $this->dbName;
$result = parent::query("SHOW TABLES FROM $database_name");
for ($i = 0; $i < $result->num_rows; $i++) {
$tb_names[$i] = (($result->data_seek( $i) && (($___mysqli_tmp = $result->fetch_row()) !== NULL)) ? array_shift($___mysqli_tmp) : false);
}
return $tb_names;
}
// gibt Feldinformationen zur Tabelle zur�ck
/*
$columns = array(action => add | alter | drop
name => Spaltenname
name_new => neuer Spaltenname, nur bei 'alter' belegt
type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob
typeValue => Wert z.B. bei Varchar
defaultValue => Default Wert
notNull => true | false
autoInc => true | false
option => unique | primary | index)
*/
function tableInfo($table_name) {
global $go_api, $go_info, $app;
// Tabellenfelder einlesen
if($rows = $app->db->queryAllRecords('SHOW FIELDS FROM '.$table_name)){
foreach($rows as $row) {
/*
$name = $row[0];
$default = $row[4];
$key = $row[3];
$extra = $row[5];
$isnull = $row[2];
$type = $row[1];
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$name = $row['Field'];
$default = $row['Default'];
$key = $row['Key'];
$extra = $row['Extra'];
$isnull = $row['Null'];
$type = $row['Type'];
$column = array();
$column['name'] = $name;
//$column['type'] = $type;
$column['defaultValue'] = $default;
if(stristr($key, 'PRI')) $column['option'] = 'primary';
if(stristr($isnull, 'YES')) {
$column['notNull'] = false;
} else {
$column['notNull'] = true;
}
if($extra == 'auto_increment') $column['autoInc'] = true;
// Type in Metatype umsetzen
if(stristr($type, 'int(')) $metaType = 'int32';
if(stristr($type, 'bigint')) $metaType = 'int64';
if(stristr($type, 'char')) {
$metaType = 'char';
$tmp_typeValue = explode('(', $type);
$column['typeValue'] = substr($tmp_typeValue[1], 0, -1);
}
if(stristr($type, 'varchar')) {
$metaType = 'varchar';
$tmp_typeValue = explode('(', $type);
$column['typeValue'] = substr($tmp_typeValue[1], 0, -1);
}
if(stristr($type, 'text')) $metaType = 'text';
if(stristr($type, 'double')) $metaType = 'double';
if(stristr($type, 'blob')) $metaType = 'blob';
$column['type'] = $metaType;
$columns[] = $column;
}
return $columns;
} else {
return false;
}
//$this->createTable('tester',$columns);
/*
$result = mysql_list_fields($go_info["server"]["db_name"],$table_name);
$fields = mysql_num_fields ($result);
$i = 0;
$table = mysql_field_table ($result, $i);
while ($i < $fields) {
$name = mysql_field_name ($result, $i);
$type = mysql_field_type ($result, $i);
$len = mysql_field_len ($result, $i);
$flags = mysql_field_flags ($result, $i);
print_r($flags);
$columns = array(name => $name,
type => "",
defaultValue => "",
isnull => 1,
option => "");
$returnvar[] = $columns;
$i++;
}
*/
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}
public function mapType($metaType, $typeValue) {
global $go_api;
$metaType = strtolower($metaType);
switch ($metaType) {
case 'int16':
return 'smallint';
break;
case 'int32':
return 'int';
break;
case 'int64':
return 'bigint';
break;
case 'double':
return 'double';
break;
case 'char':
return 'char';
break;
case 'varchar':
if($typeValue < 1) die('Database failure: Lenght required for these data types.');
return 'varchar('.$typeValue.')';
break;
case 'text':
return 'text';
break;
case 'blob':
return 'blob';
break;
Till Brehm
committed
case 'date':
return 'date';
break;