modify download + add download using symbolic links

ui/nG6/lib/class.tx_nG6_db.php

+<?php
+/***************************************************************
+*  Copyright notice
+*
+*  (c) 2009 PF bioinformatique de Toulouse <>
+*  All rights reserved
+*
+*  This script is part of the TYPO3 project. The TYPO3 project is
+*  free software; you can redistribute it and/or modify
+*  it under the terms of the GNU General Public License as published by
+*  the Free Software Foundation; either version 2 of the License, or
+*  (at your option) any later version.
+*
+*  The GNU General Public License can be found at
+*  http://www.gnu.org/copyleft/gpl.html.
+*
+*  This script is distributed in the hope that it will be useful,
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*  GNU General Public License for more details.
+*
+*  This copyright notice MUST APPEAR in all copies of the script!
+***************************************************************/
+
+require_once(t3lib_extMgm::extPath('nG6').'/lib/class.tx_nG6_utils.php');
+
+/**
+ * Class_nG6_db' for the 'nG6' extension.
+ * This class is in charge of all communication with the database
+ *
+ * @author	PF bioinformatique de Toulouse <>
+ */
+class tx_nG6_db {
+
+	/*
+	 * Project functions
+	 *------------------------------------------------------------*/
+
+	/**
+	 * Select all project for the current user
+	 * 
+	 * @param	string	$user_group	the user group
+	 * @return	table with all projects
+	 */
+	function select_all_user_projects($user_group) {
+		
+		$projects = array();
+		// If the user is not logged on display demonstration project
+		if (!$GLOBALS['TSFE']->loginUser) { 
+			$where = 'fe_group=0';
+		} else {
+			$where = 'fe_group IN ('.tx_nG6_db::get_user_groups($user_group).')';	
+		}
+		//First, get the analyzis project-scale
+		$queryParts = array( 
+			'SELECT' => 'tx_nG6_project.uid AS project_id, '.
+						'tx_nG6_project.name AS project_name, '.
+						'tx_nG6_project.description AS project_description, '.
+						'tx_nG6_project.fe_group AS project_fe_group, '.
+						'tx_nG6_project.hidden AS project_hidden',
+			'FROM' => 'tx_nG6_project',
+			'WHERE' => $where,
+			'GROUPBY' => '',
+			'ORDERBY' => '',
+			'LIMIT' => ''
+		);
+		$res = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+		$user_groups = t3lib_div::intExplode(',',tx_nG6_db::get_user_groups($user_group));
+		while($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
+			$project_id = $row['project_id'];
+			
+			// Is the user allowed to see this project
+			$user_allowed = false;
+			if ($row['project_hidden'] == 0) {
+				$user_allowed = true;
+			} else {
+			    foreach(tx_nG6_db::get_super_groups_of($row['project_fe_group']) AS $valeur) {
+					if (in_array($valeur, $user_groups)) {
+						$user_allowed = true;
+					}
+			    }
+			}
+			
+			if (!isset ($projects['project_'.$project_id]) and $user_allowed) {		
+				$projects['project_'.$project_id] = array(
+					'id'			=> $project_id,				
+					'name'			=> $row['project_name'],
+					'description'	=> $row['project_description']);
+			}
+						
+		}
+		return $projects;
+	}
+
+	/**
+	 * Select a run from the database
+	 *
+	 * @param	string	$project_id	the project id to return
+	 * @return	hash table with all project information
+	 */
+	function select_project($project_id) {
+		$queryParts = array(
+			'SELECT' => '*',
+			'FROM' => 'tx_nG6_project',
+			'WHERE' => 'tx_nG6_project.uid = '.$project_id,
+			'GROUPBY' => '',
+			'ORDERBY' => '',
+			'LIMIT' => ''
+		);
+		$res = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+		return $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res);
+	}
+
+	/**
+	 * Select all runs linked to the specified project
+	 *
+	 * @param	string	$user_group	the user group
+	 * @param	string	$project_id	the project id
+	 * @return	hash table with all runs information
+	 */
+    function get_project_runs($user_group, $project_id) {
+		// First select all runs from the database
+		$queryParts = Array( 
+			'SELECT' => 'tx_nG6_run.uid AS run_id,'.
+					 	'tx_nG6_run.directory AS run_directory,'.
+					 	'tx_nG6_run.species AS run_species,'.
+						'tx_nG6_run.description AS run_description, '.
+						'tx_nG6_run.name AS run_name, '.
+						'tx_nG6_run.nb_sequences, '.
+						'tx_nG6_run.date AS run_date, '.
+						'tx_nG6_run.hidden AS run_hidden, '.
+						'tx_nG6_project.fe_group AS project_fe_group',
+			'FROM' => 'tx_nG6_project INNER JOIN ( tx_nG6_project_run INNER JOIN tx_nG6_run ON tx_nG6_project_run.run_id=tx_nG6_run.uid '.
+					  ' ) ON tx_nG6_project.uid=tx_nG6_project_run.project_id',
+			'WHERE' => 'tx_nG6_project.uid='.$project_id,
+			'GROUPBY' => '',
+			'ORDERBY' => 'tx_nG6_run.date DESC',
+			'LIMIT' 	=> ''
+		); 
+		// Then create the result hash table
+		$results = array();
+		$user_groups = t3lib_div::intExplode(',',tx_nG6_db::get_user_groups($user_group));
+		$res = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+		while($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
+			$run_id = $row['run_id'];
+			
+			// Is the user allowed to see this run
+			$user_allowed = false;
+			if ($row['run_hidden'] == 0) {
+				$user_allowed = true;
+			} else {
+			    foreach(tx_nG6_db::get_super_groups_of($row['project_fe_group']) AS $valeur) {
+					if (in_array($valeur, $user_groups)) {
+						$user_allowed = true;
+					}
+			    }
+			}
+					
+			if (!isset($results['run_'.$run_id]) and $user_allowed) {				
+				$results['run_'.$run_id] = array( 
+					'directory'		=> $row['run_directory'], 
+					'name' 			=> $row['run_name'],
+					'species' 		=> $row['run_species'],
+					'nb_sequences' 	=> $row['nb_sequences'],
+					'date'			=> $row['run_date'],
+					'description' 	=> $row['run_description']				
+				);
+			}						
+		}
+		return $results;
+    }
+
+	/**
+	 * Select all analysis linked to the specified project
+	 *
+	 * @param	string	$user_group	the user group
+	 * @param	string	$project_id	the project id
+	 * @return	hash table with all analysis information
+	 */
+    function get_project_analysis($user_group, $project_id) {
+		// First select all analysis from the database
+		$queryParts = array( 
+			'SELECT' => 'tx_nG6_analyze.uid AS analyze_id,'. 
+						'tx_nG6_analyze.directory AS analyze_directory,'. 
+						'tx_nG6_analyze.name AS analyze_name, '.
+						'tx_nG6_analyze.date AS analyze_date, '.
+						'tx_nG6_analyze.description AS analyze_description, '.
+						'tx_nG6_analyze.hidden AS analyze_hidden, '.
+						'tx_nG6_project.fe_group AS project_fe_group',
+			'FROM' => 'tx_nG6_project INNER JOIN (tx_nG6_project_analyze INNER JOIN tx_nG6_analyze ON ' .
+					  'tx_nG6_analyze.uid=tx_nG6_project_analyze.analyze_id) ON tx_nG6_project.uid = tx_nG6_project_analyze.project_id ',
+			'WHERE' => 'tx_nG6_project_analyze.project_id='.$project_id,
+			'GROUPBY' => '',
+			'ORDERBY' => 'tx_nG6_analyze.name',
+			'LIMIT' => ''
+		);
+		// Then create the result hash table
+		$results = array();
+		$res = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+		$user_groups = t3lib_div::intExplode(',',tx_nG6_db::get_user_groups($user_group));
+		while($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
+			$analyze_id = $row['analyze_id'];
+			
+			// Is the user allowed to see this analyse
+			$user_allowed = false;
+			if ($row['analyze_hidden'] == 0) {
+				$user_allowed = true;
+			} else {
+			    foreach(tx_nG6_db::get_super_groups_of($row['project_fe_group']) AS $valeur) {
+					if (in_array($valeur, $user_groups)) {
+						$user_allowed = true;
+					}
+			    }
+			}
+			
+			if (!isset ($results['analyse_'.$analyze_id]) and $user_allowed) {				
+				$results['analyse_'.$analyze_id] = array( 
+					'directory'		=> $row['analyze_directory'], 
+					'name' 			=> $row['analyze_name'],
+					'date'			=> $row['analyze_date'],
+					'description' 	=> $row['analyse_description']				
+				);
+			}						
+		}
+		return $results;
+    }
+
+
+	/*
+	 * Run functions
+	 *------------------------------------------------------------*/
+
+	/**
+	 * Select all information for the specified run
+	 *
+	 * @param	string	$run_id	the run id
+	 * @return	hash table with all the run information
+	 */
+	function get_run($run_id) {
+		
+		
+		// First select the run from the database
+		$queryParts = Array( 
+			'SELECT' => 'tx_nG6_project.uid AS project_id,'.
+						'tx_nG6_project.name AS project_name,'.
+						'tx_nG6_run.uid AS run_id,'.
+					 	'tx_nG6_run.directory AS run_directory,'.
+						'tx_nG6_run.description AS run_description, '.
+						'tx_nG6_run.name AS run_name, '.
+						'tx_nG6_run.nb_sequences, '.
+						'tx_nG6_run.date AS run_date',
+			'FROM' => 'tx_nG6_project INNER JOIN ( tx_nG6_project_run INNER JOIN tx_nG6_run ON tx_nG6_project_run.run_id=tx_nG6_run.uid '.
+					  ' ) ON tx_nG6_project.uid=tx_nG6_project_run.project_id',
+			'WHERE' => 'tx_nG6_run.uid='.$run_id,
+			'GROUPBY' => '',
+			'ORDERBY' => 'tx_nG6_run.date DESC',
+			'LIMIT' 	=> ''
+		); 
+		// Then create the result hash table
+		$result = array();
+		$res = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+		while($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
+			$run_id = $row['run_id'];
+			if (!isset ($results['run_'.$run_id])) {				
+				$result = array( 
+					'project_id'	=> $row['project_id'], 
+					'project_name'	=> $row['project_name'], 
+					'directory'		=> $row['run_directory'], 
+					'name' 			=> $row['run_name'],
+					'nb_sequences' 	=> $row['nb_sequences'],
+					'date'			=> $row['run_date'],
+					'description' 	=> $row['run_description']				
+				);
+			}						
+		}
+		return $result;
+    }
+	 
+	/**
+	 * Select all analysis linked to the specified run
+	 *
+	 * @param	string	$user_group	the user group
+	 * @param	string	$run_id	the run id
+	 * @return	hash table with all analysis information
+	 */
+    function get_run_analysis($user_group, $run_id) {
+		// First select all analysis from the database
+		$queryParts = array( 
+			'SELECT' => 'tx_nG6_analyze.uid AS analyze_id,'. 
+						'tx_nG6_analyze.directory AS analyze_directory,'. 
+						'tx_nG6_analyze.name AS analyze_name, '.
+						'tx_nG6_analyze.date AS analyze_date, '.
+						'tx_nG6_analyze.hidden AS analyze_hidden, '.
+						'tx_nG6_analyze.description AS analyze_description, '.
+						'tx_nG6_project.fe_group AS project_fe_group',
+			'FROM' => 'tx_nG6_project INNER JOIN ( tx_nG6_project_run INNER JOIN ( tx_nG6_run INNER JOIN ( tx_nG6_run_analyze INNER JOIN '.
+					  'tx_nG6_analyze ON tx_nG6_analyze.uid = tx_nG6_run_analyze.analyze_id) ON tx_nG6_run_analyze.run_id = tx_nG6_run.uid '.
+					  ') ON tx_nG6_run.uid = tx_nG6_project_run.run_id) ON tx_nG6_project_run.project_id = tx_nG6_project.uid ',
+			'WHERE' => 'tx_nG6_run_analyze.run_id='.$run_id,
+			'GROUPBY' => '',
+			'ORDERBY' => 'tx_nG6_analyze.name',
+			'LIMIT' => ''
+		);
+		// Then create the result hash table
+		$results = array();
+		$res = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+		$user_groups = t3lib_div::intExplode(',',tx_nG6_db::get_user_groups($user_group));
+		while($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
+			$analyze_id = $row['analyze_id'];
+			
+			// Is the user allowed to see this analyse
+			$user_allowed = false;
+			if ($row['analyze_hidden'] == 0) {
+				$user_allowed = true;
+			} else {
+			    foreach(tx_nG6_db::get_super_groups_of($row['project_fe_group']) AS $valeur) {
+					if (in_array($valeur, $user_groups)) {
+						$user_allowed = true;
+					}
+			    }
+			}
+			
+			if (!isset ($results['analyse_'.$analyze_id]) and $user_allowed) {				
+				$results['analyse_'.$analyze_id] = array( 
+					'directory'					=> $row['analyze_directory'], 
+					'name' 						=> $row['analyze_name'],
+					'date'						=> $row['analyze_date'],
+					'description' 				=> $row['analyse_description']				
+				);
+			}						
+		}
+		return $results;
+    }
+
+
+	/*
+	 * Run functions
+	 *------------------------------------------------------------*/
+	 
+	/**
+	 * Select all information on an analyse
+	 *
+	 * @param	string	$analyse_id	the analyse id
+	 * @return	hash table with all analyse information
+	 */
+    function get_analyse($analyse_id) {
+		
+		// First select all analyse information
+		$queryParts = array( 
+			'SELECT' => 'tx_nG6_project.uid AS project_id,'. 
+						'tx_nG6_project.name AS project_name,'. 
+						'tx_nG6_analyze.uid AS analyze_id,'. 
+						'tx_nG6_analyze.directory AS analyze_directory,'. 
+						'tx_nG6_analyze.name AS analyze_name, '.
+						'tx_nG6_analyze.date AS analyze_date, '.
+						'tx_nG6_analyze.description AS analyze_description ',
+			'FROM' => 'tx_nG6_project INNER JOIN (tx_nG6_project_analyze INNER JOIN tx_nG6_analyze ON ' .
+					  'tx_nG6_analyze.uid=tx_nG6_project_analyze.analyze_id) ON tx_nG6_project.uid = tx_nG6_project_analyze.project_id ',
+			'WHERE' => 'tx_nG6_analyze.uid='.$analyse_id,
+			'GROUPBY' => '',
+			'ORDERBY' => '',
+			'LIMIT' => ''
+		);
+		
+		$res = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+		
+		// If it's a project analyse, add project information
+		if ($GLOBALS['TYPO3_DB']->sql_num_rows($res) > 0) {
+			$result = array();
+			while($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {	
+				$result = array( 
+					'project_name'				=> $row['project_name'], 
+					'project_id'				=> $row['project_id'],
+					'run_name'					=> 'None', 
+					'run_id'					=> 'None',					 
+					'directory'					=> $row['analyze_directory'], 
+					'name' 						=> $row['analyze_name'],
+					'date'						=> $row['analyze_date'],
+					'description' 				=> $row['analyze_description']				
+				);				
+			}
+			return $result;
+		} else { // If it's a run analyse, add run information
+			$queryParts = array( 
+				'SELECT' => 'tx_nG6_project.name AS project_name,'.
+							'tx_nG6_project.uid AS project_id,'.
+							'tx_nG6_run.uid AS run_id,'. 
+							'tx_nG6_run.name AS run_name,'.
+							'tx_nG6_analyze.uid AS analyze_id,'. 
+							'tx_nG6_analyze.directory AS analyze_directory,'. 
+							'tx_nG6_analyze.name AS analyze_name, '.
+							'tx_nG6_analyze.date AS analyze_date, '.
+							'tx_nG6_analyze.description AS analyze_description',
+				'FROM' => 'tx_nG6_project INNER JOIN ( tx_nG6_project_run INNER JOIN ( tx_nG6_run INNER JOIN ( tx_nG6_run_analyze INNER JOIN '.
+						  'tx_nG6_analyze ON tx_nG6_analyze.uid = tx_nG6_run_analyze.analyze_id) ON tx_nG6_run_analyze.run_id = tx_nG6_run.uid '.
+						  ') ON tx_nG6_run.uid = tx_nG6_project_run.run_id) ON tx_nG6_project_run.project_id = tx_nG6_project.uid ',
+				'WHERE' => 'tx_nG6_analyze.uid='.$analyse_id,
+				'GROUPBY' => '',
+				'ORDERBY' => 'tx_nG6_analyze.name',
+				'LIMIT' => ''
+			);
+			$res = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+			$result = array();
+			while($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {	
+				$result = array( 
+					'project_name'				=> $row['project_name'], 
+					'project_id'				=> $row['project_id'],
+					'run_name'					=> $row['run_name'], 
+					'run_id'					=> $row['run_id'], 			 
+					'directory'					=> $row['analyze_directory'], 
+					'name' 						=> $row['analyze_name'],
+					'date'						=> $row['analyze_date'],
+					'description' 				=> $row['analyze_description']				
+				);				
+			}
+			return $result;
+		}
+    }
+    
+
+	/*
+	 * User functions
+	 *------------------------------------------------------------*/
+
+    /**
+    * Return the supergroups list of the specified group
+    * 
+    * @param string	$group	the group
+    * @return array
+    */ 
+	function get_super_groups_of ($group) {
+		// First get the super group of the given group
+		$queryParts = array(
+			'SELECT' => 'uid, subgroup',
+			'FROM' => 'fe_groups',
+			'WHERE' => '',
+			'GROUPBY' => '',
+			'ORDERBY' => '',
+			'LIMIT' => ''
+		);
+		$res = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+		$reslist = array();
+		$i = 0;
+		while($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res))	{
+			if (in_array($group, t3lib_div::intExplode(',',$row['subgroup']))) {
+				$reslist[$i] = $row['uid'];
+				$i++;
+			}
+		}
+		return $reslist;
+	}
+    
+	/**
+	 * Returns a string with user groups separated by comas
+	 * 
+     * @param	string	$user_group	the user group
+	 * @return	string	list of user groups splited by a coma
+	 */
+	function get_user_groups($user_group) {
+		$tab_groups = array();
+		tx_nG6_db::get_sub_groups($user_group, '', $tab_groups);
+		$groups = '';
+		foreach($tab_groups as $valeur) { $groups .= $valeur.','; }
+		return substr($groups, 0, -1);	
+	}
+
+	/**
+	 * Fetches subgroups of groups. Function is called recursively for each subgroup.
+	 * Function was previously copied from t3lib_userAuthGroup->fetchGroups and has been slightly modified.
+	 *
+	 * @param	string	$grList	commalist of fe_groups uid numbers
+	 * @param	string	$idList	list of already processed fe_groups-uids so the function will not fall into a eternal recursion.
+	 * @return	array
+	 */
+	function get_sub_groups($grList, $idList='', &$groups)	{
+
+		// Fetching records of the groups in $grList (which are not blocked by lockedToDomain either):
+		$lockToDomain_SQL = ' AND (lockToDomain=\'\' OR lockToDomain IS NULL)';
+		$res = $GLOBALS['TYPO3_DB']->exec_SELECTquery('uid,subgroup', 'fe_groups', 'deleted=0 AND hidden=0 AND uid IN ('.$grList.')'.$lockToDomain_SQL);
+
+		$groupRows = array();	// Internal group record storage
+		// The groups array is filled
+		while ($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res))	{
+			if(!in_array($row['uid'], $groups))	{ $groups[] = $row['uid']; }
+			$groupRows[$row['uid']] = $row;
+		}
+
+		// Traversing records in the correct order
+		$include_staticArr = t3lib_div::intExplode(',', $grList);
+		foreach($include_staticArr as $uid)	{	// traversing list
+			// Get row:
+			$row=$groupRows[$uid];
+			if (is_array($row) && !t3lib_div::inList($idList,$uid))	{	// Must be an array and $uid should not be in the idList, because then it is somewhere previously in the grouplist
+				// Include sub groups
+				if (trim($row['subgroup']))	{
+					$theList = implode(',',t3lib_div::intExplode(',',$row['subgroup']));	// Make integer list
+					tx_nG6_db::get_sub_groups($theList, $idList.','.$uid, $groups);		// Call recursively, pass along list of already processed groups so they are not recursed again.
+				}
+			}
+		}
+	}
+	
+	/**
+	 * Return if the user is authorized or not to access the specified project and run
+	 *
+	 * @param	string	$user_group	the user group
+	 * @param	string	$project_id	the project id
+	 * @param	string	$project_id	the run id
+	 * @return	boolean
+	 */
+	function user_is_authorized ($user_group, $project_id, $run_id) {
+		if ($project_id) {
+			$queryParts = array(
+				'SELECT' => 'fe_group',
+				'FROM' => 'tx_nG6_project',
+				'WHERE' => 'uid='.$project_id,
+				'GROUPBY' => '',
+				'ORDERBY' => '',
+				'LIMIT' => ''
+			);
+			$res = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+			$val = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res);
+			$authorized_group = $val['fe_group'];
+		} elseif ($run_id) {
+			$queryParts = array(
+				'SELECT' => 'project_id',
+				'FROM' => 'tx_nG6_project_run',
+				'WHERE' => 'run_id='.$run_id,
+				'GROUPBY' => '',
+				'ORDERBY' => '',
+				'LIMIT' => ''
+			);
+			$res1 = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+			$val = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res1);
+			$queryParts = array(
+				'SELECT' => 'fe_group',
+				'FROM' => 'tx_nG6_project',
+				'WHERE' => 'uid='.$val['project_id'],
+				'GROUPBY' => '',
+				'ORDERBY' => '',
+				'LIMIT' => ''
+			);
+			$res2 = $GLOBALS['TYPO3_DB']->exec_SELECT_queryArray($queryParts);
+			$val = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res2);
+			$authorized_group = $val['fe_group'];
+		} else {
+			return true;
+		}
+		if (!$GLOBALS['TSFE']->loginUser) { // If the user is not logged on
+			return $authorized_group == 0;
+		} else {
+			return in_array($authorized_group, preg_split("/,/", tx_nG6_db::get_user_groups($user_group)));
+		}
+	}
+	
+
+}
+
+if (defined('TYPO3_MODE') && $TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['ext/nG6/class.tx_nG6_db.php']) {
+    include_once($TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['ext/nG6/class.tx_nG6_db.php']);
+}
+
+?>

ui/nG6/lib/class.tx_nG6_process.php

+<?php
+/***************************************************************
+*  Copyright notice
+*
+*  (c) 2009 PF bioinformatique de Toulouse <>
+*  All rights reserved
+*
+*  This script is part of the TYPO3 project. The TYPO3 project is
+*  free software; you can redistribute it and/or modify
+*  it under the terms of the GNU General Public License as published by
+*  the Free Software Foundation; either version 2 of the License, or
+*  (at your option) any later version.
+*
+*  The GNU General Public License can be found at
+*  http://www.gnu.org/copyleft/gpl.html.
+*
+*  This script is distributed in the hope that it will be useful,
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*  GNU General Public License for more details.
+*
+*  This copyright notice MUST APPEAR in all copies of the script!
+***************************************************************/
+
+/**
+ * An easy way to keep in track of external processes.
+ * Ever wanted to execute a process in php, but you still wanted to have somewhat controll of the process ? Well.. This is a way of doing it.
+ * @compability: Linux only. (Windows does not work).
+ * 
+ * @author: Peec
+ */
+class Process{
+    private $pid;
+    private $command;
+
+    public function __construct($cl=false){
+        if ($cl != false){
+            $this->command = $cl;
+            $this->runCom();
+        }
+    }
+    private function runCom(){
+        $command = 'nohup '</