<?php
|
|
/*
|
Copyright (c) 2007 - 2009, 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 modules {
|
|
var $notification_hooks = array();
|
var $current_datalog_id = 0;
|
var $debug = false;
|
|
/*
|
This function is called to load the modules from the mods-enabled or the mods-core folder
|
*/
|
function loadModules($type) {
|
global $app, $conf;
|
|
$subPath = 'mods-enabled';
|
if ($type == 'core') $subPath = 'mods-core';
|
|
$modules_dir = $conf['rootpath'].$conf['fs_div'].$subPath.$conf['fs_div'];
|
if (is_dir($modules_dir)) {
|
if ($dh = opendir($modules_dir)) {
|
while (($file = readdir($dh)) !== false) {
|
if($file != '.' && $file != '..' && substr($file,-8,8) == '.inc.php') {
|
$module_name = substr($file,0,-8);
|
include_once($modules_dir.$file);
|
if($this->debug) $app->log('Loading Module: '.$module_name,LOGLEVEL_DEBUG);
|
$app->loaded_modules[$module_name] = new $module_name;
|
$app->loaded_modules[$module_name]->onLoad();
|
}
|
}
|
}
|
} else {
|
$app->log('Modules directory missing: '.$modules_dir,LOGLEVEL_ERROR);
|
}
|
|
}
|
|
/*
|
This function is called by the modules to register for a specific
|
table change notification
|
*/
|
|
function registerTableHook($table_name,$module_name,$function_name) {
|
global $app;
|
$this->notification_hooks[$table_name][] = array('module' => $module_name, 'function' => $function_name);
|
if($this->debug) $app->log("Registered TableHook '$table_name' in module '$module_name' for processing function '$function_name'",LOGLEVEL_DEBUG);
|
}
|
|
/*
|
This function goes through all new records in the
|
sys_datalog table and and calls the function in the
|
modules that hooked on to the table change.
|
*/
|
|
function processDatalog() {
|
global $app,$conf;
|
|
//* If its a multiserver setup
|
if($app->db->dbHost != $app->dbmaster->dbHost) {
|
if($conf['mirror_server_id'] > 0) {
|
$sql = "SELECT * FROM sys_datalog WHERE datalog_id > ".$conf['last_datalog_id']." AND (server_id = ".$conf['server_id']." OR server_id = ".$conf['mirror_server_id']." OR server_id = 0) ORDER BY datalog_id";
|
} else {
|
$sql = "SELECT * FROM sys_datalog WHERE datalog_id > ".$conf['last_datalog_id']." AND (server_id = ".$conf['server_id']." OR server_id = 0) ORDER BY datalog_id";
|
}
|
|
$records = $app->dbmaster->queryAllRecords($sql);
|
foreach($records as $d) {
|
|
//** encode data to utf-8 and unserialize it
|
if(!$data = unserialize(stripslashes($d['data']))) {
|
$data = unserialize($d['data']);
|
}
|
//** Decode data back to locale
|
/*
|
foreach($data['old'] as $key => $val) {
|
$data['old'][$key] = utf8_decode($val);
|
}
|
foreach($data['new'] as $key => $val) {
|
$data['new'][$key] = utf8_decode($val);
|
}
|
*/
|
|
$replication_error = false;
|
|
$this->current_datalog_id = $d['datalog_id'];
|
|
/*
|
* If we are in a mirror setup, rewrite the server_id of records that originally
|
* belonged to the mirrored server to the local server_id
|
*/
|
if($conf['mirror_server_id'] > 0 && $d['dbtable'] != 'server') {
|
if(isset($data['new']['server_id']) && $data['new']['server_id'] == $conf['mirror_server_id']) $data['new']['server_id'] = $conf['server_id'];
|
if(isset($data['old']['server_id']) && $data['old']['server_id'] == $conf['mirror_server_id']) $data['old']['server_id'] = $conf['server_id'];
|
}
|
|
if(count($data['new']) > 0) {
|
if($d['action'] == 'i' || $d['action'] == 'u') {
|
$idx = explode(':',$d['dbidx']);
|
$tmp_sql1 = '';
|
$tmp_sql2 = '';
|
foreach($data['new'] as $fieldname => $val) {
|
$tmp_sql1 .= "`$fieldname`,";
|
$tmp_sql2 .= "'".$app->db->quote($val)."',";
|
}
|
$tmp_sql1 = substr($tmp_sql1,0,-1);
|
$tmp_sql2 = substr($tmp_sql2,0,-1);
|
//$tmp_sql1 .= "$idx[0]";
|
//$tmp_sql2 .= "$idx[1]";
|
$sql = "REPLACE INTO $d[dbtable] ($tmp_sql1) VALUES ($tmp_sql2)";
|
$app->db->errorNumber = 0;
|
$app->db->errorMessage = '';
|
$app->db->query($sql);
|
if($app->db->errorNumber > 0) {
|
$replication_error = true;
|
$app->log("Replication failed. Error: (" . $d['dbtable'] . ") in MySQL server: (".$app->db->dbHost.") " . $app->db->errorMessage . " # SQL: " . $sql,LOGLEVEL_ERROR);
|
}
|
$app->log('Replicated from master: '.$sql,LOGLEVEL_DEBUG);
|
}
|
/*
|
if($d["action"] == 'u') {
|
$sql = "UPDATE $d[dbtable] SET ";
|
foreach($data['new'] as $fieldname => $val) {
|
$sql .= "`$fieldname` = '$val',";
|
}
|
$sql = substr($sql,0,-1);
|
$idx = explode(":",$d["dbidx"]);
|
$sql .= " WHERE $idx[0] = $idx[1]";
|
$app->db->query($sql);
|
if($app->db->errorNumber > 0) {
|
$replication_error = true;
|
$app->log("Replication failed. Error: (" . $d[dbtable] . ") " . $app->db->errorMessage . " # SQL: " . $sql,LOGLEVEL_ERROR);
|
}
|
$app->log("Replicated from master: ".$sql,LOGLEVEL_DEBUG);
|
}
|
*/
|
if($d['action'] == 'd') {
|
$idx = explode(':',$d['dbidx']);
|
$sql = "DELETE FROM $d[dbtable] ";
|
$sql .= " WHERE $idx[0] = $idx[1]";
|
$app->db->query($sql);
|
if($app->db->errorNumber > 0) {
|
$replication_error = true;
|
$app->log("Replication failed. Error: (" . $d[dbtable] . ") " . $app->db->errorMessage . " # SQL: " . $sql,LOGLEVEL_ERROR);
|
}
|
$app->log('Replicated from master: '.$sql,LOGLEVEL_DEBUG);
|
}
|
|
|
if($replication_error == false) {
|
if(is_array($data['old']) || is_array($data['new'])) {
|
$this->raiseTableHook($d['dbtable'],$d['action'],$data);
|
} else {
|
$app->log('Data array was empty for datalog_id '.$d['datalog_id'],LOGLEVEL_WARN);
|
}
|
//$this->raiseTableHook($d["dbtable"],$d["action"],$data);
|
//$app->dbmaster->query("DELETE FROM sys_datalog WHERE datalog_id = ".$d["datalog_id"]);
|
//$app->log("Deleting sys_datalog ID ".$d["datalog_id"],LOGLEVEL_DEBUG);
|
$app->dbmaster->query("UPDATE server SET updated = ".$d["datalog_id"]." WHERE server_id = ".$conf['server_id']);
|
$app->log('Processed datalog_id '.$d['datalog_id'],LOGLEVEL_DEBUG);
|
} else {
|
$app->log('Error in Replication, changes were not processed.',LOGLEVEL_ERROR);
|
/*
|
* If there is any error in processing the datalog we can't continue, because
|
* we do not know if the newer actions require this (old) one.
|
*/
|
return;
|
}
|
} else {
|
$app->log('Datalog does not contain any changes for this record '.$d['datalog_id'],LOGLEVEL_DEBUG);
|
}
|
}
|
|
//* if we have a single server setup
|
} else {
|
$sql = "SELECT * FROM sys_datalog WHERE datalog_id > ".$conf['last_datalog_id']." AND (server_id = ".$conf['server_id']." OR server_id = 0) ORDER BY datalog_id";
|
$records = $app->db->queryAllRecords($sql);
|
foreach($records as $d) {
|
|
//** encode data to utf-8 to be able to unserialize it and then unserialize it
|
if(!$data = unserialize(stripslashes($d['data']))) {
|
$data = unserialize($d['data']);
|
}
|
//** decode data back to current locale
|
/*
|
foreach($data['old'] as $key => $val) {
|
$data['old'][$key] = utf8_decode($val);
|
}
|
foreach($data['new'] as $key => $val) {
|
$data['new'][$key] = utf8_decode($val);
|
}
|
*/
|
|
$this->current_datalog_id = $d['datalog_id'];
|
if(is_array($data['old']) || is_array($data['new'])) {
|
$this->raiseTableHook($d['dbtable'],$d['action'],$data);
|
} else {
|
$app->log('Data array was empty for datalog_id '.$d['datalog_id'],LOGLEVEL_WARN);
|
}
|
//$app->db->query("DELETE FROM sys_datalog WHERE datalog_id = ".$rec["datalog_id"]);
|
//$app->log("Deleting sys_datalog ID ".$rec["datalog_id"],LOGLEVEL_DEBUG);
|
$app->db->query("UPDATE server SET updated = ".$d['datalog_id']." WHERE server_id = ".$conf['server_id']);
|
$app->log('Processed datalog_id '.$d['datalog_id'],LOGLEVEL_DEBUG);
|
}
|
}
|
}
|
|
function processActions() {
|
global $app,$conf;
|
|
//* get the server_id of the local server
|
$server_id = intval($conf["server_id"]);
|
|
include_once (SCRIPT_PATH."/lib/remote_action.inc.php");
|
|
//* SQL query to get all pending actions
|
$sql = "SELECT action_id, action_type, action_param " .
|
"FROM sys_remoteaction " .
|
"WHERE server_id = " . $server_id . " ".
|
" AND action_id > " . intval($maxid_remote_action) . " ".
|
"ORDER BY action_id";
|
|
$actions = $app->dbmaster->queryAllRecords($sql);
|
|
if(is_array($actions)) {
|
foreach($actions as $action) {
|
|
//* Raise the action
|
$state = $app->plugins->raiseAction($action['action_type'],$action['action_param']);
|
|
//* Update the action state
|
$sql = "UPDATE sys_remoteaction " .
|
"SET action_state = '" . $app->dbmaster->quote($state) . "' " .
|
"WHERE action_id = " . intval($action['action_id']);
|
$app->dbmaster->query($sql);
|
|
/*
|
* Then save the maxid for the next time...
|
*/
|
$fp = fopen(ISPC_LIB_PATH."/remote_action.inc.php", 'wb');
|
$content = '<?php' . "\n" . '$maxid_remote_action = ' . $action['action_id'] . ';' . "\n?>";
|
fwrite($fp, $content);
|
fclose($fp);
|
}
|
}
|
|
|
|
}
|
|
function raiseTableHook($table_name,$action,$data) {
|
global $app;
|
|
// Get the hooks for this table
|
$hooks = (isset($this->notification_hooks[$table_name]))?$this->notification_hooks[$table_name]:'';
|
if($this->debug) $app->log("Raised TableHook for table: '$table_name'",LOGLEVEL_DEBUG);
|
|
if(is_array($hooks)) {
|
foreach($hooks as $hook) {
|
$module_name = $hook['module'];
|
$function_name = $hook['function'];
|
// Call the processing function of the module
|
if($this->debug) $app->log("Call function '$function_name' in module '$module_name' raised by TableHook '$table_name'.",LOGLEVEL_DEBUG);
|
// call_user_method($function_name,$app->loaded_modules[$module_name],$table_name,$action,$data);
|
call_user_func(array($app->loaded_modules[$module_name],$function_name),$table_name,$action,$data);
|
unset($module_name);
|
unset($function_name);
|
}
|
}
|
unset($hook);
|
unset($hooks);
|
}
|
|
}
|
|
?>
|